Codes and Notes on Public International Law - 10497 Words

CODES AND NOTES ON PUBLIC INTERNATIONAL LAW by PORFERIO JR. and MELFA SALIDAGA NOTES ON PUBLIC INTERNATIONAL LAW CHAPTER 1 GENERAL PRINCIPLES Nature and Scope Public International Law – It is the body of rules and principles that are recognized as legally binding and which govern the relations of states and other entities invested with international legal personality. Formerly known as â€Å"law of nations† coined by Jeremy Bentham in 1789. Three Major Parts of Public International Law 1. Laws of Peace – normal relations between states in the absence of war. 2. Laws of War – relations between hostile or belligerent states during wartime. 3. Laws of Neutrality – relations between a non-participant state and a participant state during wartime.†¦show more content†¦Art. X, Sec. 2(2) provides that â€Å"all cases involving the constitutionality of any treaty, executive agreement or law shall be heard and decided by the Supreme Court en banc, and no treaty, executive agreement or law may be declared unconstitutional without the concurence of ten justices.† The Constitution authorizes the nullification of a treaty not only when it conflicts with the Constitution but also when it runs counter to an act of Congress. (Gonzales v. Hechanova). CODES AND NOTES ON PUBLIC INTERNATIONAL LAW by PORFERIO JR. and MELFA SALIDAGA Basis of Public International Law Three theories on this matter: 1. The Naturalist – under this theory, there is a natural and universal principle of right and wrong, independent of any mutual intercource or compact, which is supposed to be discovered and recognized by every individual through the use of his reason and his conscience. 2. The Positivist – under this theory, the binding force of international law is derived from the agreement of sovereign states to be bound by it. It is not a law of subordination but of coordination. 3. The Eclectics or Groatians – this theory offers both the law of nature and the consent of states as the basis of international law. It contends that the system of international law is based on the â€Å"dictate of rightShow MoreRelatedUnethical Business Practices Of Multinational Companies1512 Words   |  7 PagesAbstract This paper discusses the unethical business practices of multinational companies, which have become a concern on a national and international level. While the convergence of accounting standards remains a challenge, so has a set of ethical standards. The need for a global set of standards has become paramount over the last decade. Through my extensive review and research of literature, there appears to be an ongoing need for convergence. 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Anita Moorjani s Traditional Hindu Heritage - 1638 Words

Anita Moorjani did not have your typical upbringing. She was of Indian decent and her family was of traditional Hindu heritage, but Anita grew up in Hong Kong with a British education. Growing up, her closest friend was her family’s servant and her nanny Ah Fong who taught her Cantonese and Chinese culture. Her friends at school spoke English and practiced British customs. She spoke three languages, cultures and ways of life but always had a hunger for more. At the same time this left her very confused about who she was and where she fit in. She loved her family and never wanted to be a problem for them yet she couldn’t follow the Hindu customs. A big turning point for her was after her parents picked a suitable groom and she was unable to†¦show more content†¦Anita set out to find a cure in India. She spent 6 months there where a yoga master gave her a strict regimen to follow of a diet, herbal remedies, and yoga. He believed in keeping the body balance and ri dding your body of the bad. When Anita told him he had cancer, he responded â€Å"Cancer is just a word that creates fear. Forget about that word, and let’s just focus on balancing your body. All illness are just symptoms of imbalance. No illness can remain when your entire system is in balance† (pg 50). From this point forward, Anita focused on balancing her body and life. The cancer metastasized throughout her entire body and sent her to the hospital where she was near death. During her near death experience (NDE) she was able to see those who have passed on such as her father and Soni, and learned of the purpose of life. She describes it as a tapestry where each life is woven together with a purpose. From this, she learned her life is not yet over and she will be healed. Days after she wakes up, the doctors are flabbergasted to learn that her cancer is nowhere to be found. She knows she is healed as she now has balance. Feeling Helpless: Cancer is an ugly disease and can cause ugly emotions, fears, and issues. Not only does the patient have to cope worry and stress of the new diagnosis as well as their family but also with the treatments for the illness and the side effects that they brings on as well. â€Å"These effects contribute to

Nacl on Peroxidase Activity Free Essays

NaCl Effects on Peroxidase Activity My experiment was to see if adding NaCl to solution would have any effects on peroxidase activity. The materials that were used in this experiment were pH 7 buffer(DI water), peroxidase, NaCl, guaiacol and hydrogen peroxide; added in that order. Blanks were created for each NaCl concentration, 0%, 5%, 7. We will write a custom essay sample on Nacl on Peroxidase Activity or any similar topic only for you Order Now 5% and 10%. Each cuvette had . 5ml of pH 7 buffer, 1ml of peroxidase, . 02ml guaiacol for the experimental cuvettes and 0ml of guaiacol for the blank cuvettes, . 2ml of hydrogen peroxide and . ml of different concentrated NaCl in each cuvette. When it came to recording data for my experiment, I placed the cuvette in the spectrometer, which was set to 500nm, after adding the guaiacol and hydrogen peroxide right before. I recorded the absorbance every 15 seconds for 3 minutes. I ran the experiment twice for precision and got the average of the two tests. I then entered the data into JMP and made two graphs; one to see the relationship between the concentration of NaCl and activity and the other to see how salt affect enzyme activity. The first graph only required the time and the mean absorbance. To make the second graph, I had to find Time X, the time where reaction starts to slow down, which in my case was 90 seconds. The axes for the graph were Time X as the y-axis and NaCl concentrations as the x-axis. The graphs showed me that there is a relationship between NaCl concentrations and peroxidase activity. More the concentration of NaCl, the faster the reaction occurs. How to cite Nacl on Peroxidase Activity, Papers

Ben and Jerrys Management Style free essay sample

Ben and Jerry’s ice cream has been in business since 1978. It began with Ben Cohen Jerry Greenfield and a combined life savings of $8,000. These two young men had a vision and were able to develop into one of the most successful ice cream businesses in America. Most importantly, they have employee’s that genuinely enjoy working for the company and are motivated to go to work. How does this company do it? This essay will explore how Ben and Jerry’s motivate its employees by having values and a goal-oriented business. There are some defining terms and concepts to have a general understanding of before reviewing the success of Ben and Jerry’s. One of those is understanding what individuals perceive and why they believe in a company or a product. The actual definition of perception is the act of using the senses to become aware of the environment (Bowman). People use perception to create their own beliefs about themselves and their surroundings, and in turn, create their values (Bowman). If managers can understand an employee’s â€Å"mental map†, or perception, they can then truly lead that person and create solutions to problems for a win-win solution (Bowman). The problem with individual perceptions is that they are not always correct and are easily transformed into what we want to believe or value. This is a big challenge for many employers to address with their employees. It is impossible to motivate or get productivity out of someone if they perceive the company negatively. Ben and Jerry’s have been able to combine perceptions, values and beliefs of the company with their employees, and customers to create their positive environment. It starts with the company’s product mission statement that states, â€Å"To make, distribute sell the finest quality all natural ice cream euphoric concoctions with a continued commitment to incorporating wholesome, natural ingredients and promoting business practices that respect the Earth and the Environment†. This statement clearly states the company’s goals for all employees and customers to know. The company wants to make sure that everyone can have pride in knowing they are using the finest quality ingredients and implementing business practices employees can take pride in. The unique thing to notice is that Ben and Jerry’s not only has a product mission statement, but also has an economic and social mission statement. In these two statements, the company shows it is serious about expanding opportunities for development, career growth for their employees, and sustaining a good quality of life. Another concept that can be applied to Ben and Jerry’s success with satisfied employees is the Employee Satisfaction Model. The job facets that are visible in Ben and Jerry’s are clear in their mission statements. Some of these facets include the ability for promotions and increasing pay rates, company policies, and the clear mission of the company to name a few (Scholl). Because these job facets are in place, it creates a positive cognitive and affective response, which in turn, creates job satisfaction (Scholl). The cognitive component, or an individual’s perception regarding the organization, is evident from the reward system they have in place to the satisfaction employee’s have with their role and tasks they accomplish on a day-to-day basis. The affective component creates satisfaction as well. Employees genuinely enjoy social interactions at work, which evoke a positive image of the organization (Scholl). How does all this affect motivation? First, it is important to understand that motivation is the set of processes that moves a person toward a goal (Allen). Goal setting is perhaps the strongest of all forces for personal motivation (Abernathy). There are many organizations that do not succeed because organizational goals are not communicated or created. An important fact to remember is that goals serve as guidelines for action, directing and channeling employee efforts (Organizational Goals). Ben and Jerry’s organizational goals are clear in the product, economic and social mission statements. Some factors that Allen states that affect work motivation include: individual differences, job characteristics, and organizational practices. Individual differences are the personal needs, values, attitudes, interests, and abilities that people bring to their jobs. The individual difference inside Ben and Jerry’s is one source of their success. The organization uses reward inducement system that offers money to employees for their own ideas on how to do things better or how to create a better work environment. This actually has potential to capture what individual employee’s value. Most importantly, most employee go to work for Ben and Jerry’s because they truly believe in what the company is doing and how they are doing it. Ben and Jerry’s are extremely environmentally friendly, which employee’s can take pride in. If you look at the Ben and Jerry’s website, you can see that their focus is on children and families, the environment and sustainable agriculture on family farms. Once again, these things are what their employees value. The organization has a casual dress requirement as well. Their philosophy is that employee’s should be comfortable at work. Comfort equals happy and motivated people, which then increase productivity. The company also brings in massage therapist for their 12-hour shift laborers to help motivate them. It is apparent that Ben and Jerry’s goal is to create a pleasurable work place and reinforce individuals self worth (Scholl). Generally, if employees have a positive affect, they tend to evaluate the organization positively (Scholl). From the beginning in 1978 to the present day Ben and Jerry’s has been a unique organization. It is evident that they have strived to be a company that people really want to work for. Creating this image and making it a success is extremely challenging. What makes this organization so great to work for starts with its product, economic, and social mission statements. There is no doubt, what the company stands for and what it wants to do in the future. This makes it so easy for their employees to understand what the organizations goals are. When a company can create an environment that is casual, comfortable, and thrives to hear from their employees motivation is easy to achieve.

Who Rules America by G. William Domhoff an Example of the Topic Government and Law Essays by

Who Rules America by G. William Domhoff As it is reported by Domhoff, without privileging a Marxist understanding of class structure of the US, aristocracy turned to be a ruling class having disproportionate amount of evident control. The ruling class has consequential partitions among themselves and this has an impact on creation of two totally different political parties, they also have a solid level of class mind and share many values. The sociology of leadership technique is the tool that is used for proving this hypothesis as well as learning the social-economical descriptions of top-level members of influential institution, from 1932 to 1964 years. The present book is the one that provides the most sensible analyses that I have ever read on the authoritative stricture in America. Need essay sample on "Who Rules America by G. William Domhoff" topic? We will write a custom essay sample specifically for you Proceed Domhoff starts his analysis with a commonly adopted, politically neutral characterization of social class. Domhoff determines the social class as a large group of people that freely become related with each other (Domhoff p. 4). He talks about institutions that have "elite" membership, that means that in these institutions rich people in roughly the top percentile and also admits that the access to such institutions is limited and being controlled thoroughly. For instance, the Social Register, this is how he calls the upper class statues, will require the proof of social acceptability in the form of a several letters from current members in order to accept and add a new member. Such limitations on the clubs of gentlemen, resorts and schools show that the group of wealth Americans treats each other as social equals and it is said that the group size can hardly be more than 0.5% of the population. "Despite their preponderant power within the federal government and the many useful policies it carries out for them, members of the power elite are constantly critical of government as an alleged enemy of freedom and economic growth. Although their wariness toward government is expressed in terms of a dislike for taxes and government regulations, I believe their underlying concern is that government could change the power relations in the private sphere by aiding average Americans through a number of different avenues: (1) creating government jobs for the unemployed; (2) making health, unemployment, and welfare benefits more generous; (3) helping employees gain greater workplace rights and protections; and (4) helping workers organize unions. All of these initiatives are opposed by members of the power elite because they would increase wages and taxes, but the deepest opposition is toward any government support for unions because unions are a potential organizational base for advoca ting the whole range of issues opposed by the corporate rich." A dominant aspect that makes the group exclusive is the tied-up values and social stratums. According to Domhoff, female associations, debutante balls and guilds function as "corralling the democratic inclinations of libidinal impulses" (Domhoff p.20), clubs and private schools train people to behave and think properly. On the other pages of the book, Domhoff disputes about the fact that the inadequate social mobility into the presented ruling class makes it difficult to navigate that the aspiring family inevitably accepts the old-rich values (Domhoff p. 30, 140). A social manager is involved in the process and arranges dinners with the right people. The social mobility that exists for sure, is very important for the survival of the class system. By co-opting "prominent members of dominated classes," the leaders of what could differently be opposition are neutralized. As a short digression from the topic, the ideological control performed by the ruling class universities is underestimated in the present book, though the subject of upper-class control of the main universities is broached in the book. While Domhoff was writing, the tenure system was the main obstacle that he encountered and he saw to complete control of schools, which has since been deprived. At the time, control was limited to sponsorship and service as trustees (Domhoff p.77). I suppose that Domhoff was not anxious abut schools performing the tasks of social management too much. The reason that I suspect so is because of the fact that he viewed a "traditional classical education" as perilous to the aristocracy, while the true antagonistic education was trade school (Domhoff p.78). After we see the straightforwardness (to say gently) of the ruling class, we should define whether or not there are separate pouches of elite in each city, or if it has national character. The clarity that Domhoff gives for it being state is school admission, multiple club membership, and intrastate intermarriage. If considered separately, this may seem to be a bit faint, nevertheless the further obviousness of interlocking leadership of corporations and other bodies undoubtedly proves that the governing class is not municipal. The next step in the reason is not as well studied as one would like it to be, because of the fact that "the ownership and control of major businesses is the most secret aspect of American society" (Domhoff p. 38). Yet, the information available is disgraceful. Evidently, most of associations (and institutions) are controlled by their board of management, a group of about 10-25 men who meet once or twice a month to make major resolves and appointments (p. 39). These directors are in majority representatives of the ruling class (most of the book consists of lists of these people and their bonds), and often are the members of 7-8 different boards (Domhoff p. 54). This is the substantial tool with which capitalism gained monopoly laws--the directors of major corporations and institutions are practically the same people, and a few wealthy families hold in their arms huge amounts of stock in many different companies, not just one. This virtually gives the ruling class more interest while supporting the whole economic system than they would have owning just the industry (Domhoff p. 40). The present book gives us the ray of hope showing the idea that nevertheless the ruling class merely controls every major body of power of the country, there are substantial philosophical differences among the members of this upper class and it resulted in a bipartisanship system. The author of the book consents to the idea that both parties are controlled by the same upper class, but at the same time adds to this that there are evident differences between the leaders of the parties and its members. As he says, "the leaders of the two parties have intra-class differences; the followers have inter-class and professional differences" (Domhoff p. 86). Also, owing to the lower campaign costs, at the time the Congress wasn't controlled by the ruling class, and the influence was only exerted by the standard lobby channels. References Domhoff William G. (1983) Who Rules America Now? Touchstone Books

Cravings And Crabbings

Cravings And Crabbings CRAVINGS and CRABBINGS Cravings - the name is intriguing in itself. It can make you want to know if their food is really something to crave for. Cravings Restaurant along Katipunan Avenue stands out because of its fa §ade made of dark-colored stone slabs that speaks of understated elegance. It is so unlike the multi-colored and well-lit appearance of the nearby fastfood chains that I usually patronize on my student's allowance.From its outside appearance alone, I found it easy to imagine how insecure I would have felt if my Mom was not with me to pay the bill. As we stepped inside, the softly-lit interior and the impressive wooden staircase, wide and curving, with wrought iron handrails, completed the classy (and expensive) ambience.After entering the restaurant that evening last week, a waiter neatly attired in a blue long-sleeved polo shirt pulled back the chair for me and handed me the menu.Seven-layer salad is an American dish that include...

Depletion Of The Environment Essay Example | Topics and Well Written Essays - 750 words

Depletion Of The Environment - Essay Example The man has survived on this planet, even when the great dinosaurs had died out, become extinct. The instinct for survival is the strongest instinct in any living being. The man survived through the ages because of this and also using his superior intelligence and powers of adaptation. And now it is as if the man is bereft of his powers of reasoning, it’s as if he has suddenly succumbed to a death-wish. It’s as if, like the lemmings of the tundra, he is hell-bent on committing suicide en masse. If we go on in this crazy manner by the turn of the next century, mankind as species will have become extinct. If we take preventive action with immediate effect and a long-term perspective in view, we can arrest this problem now. But the tragic thing about it is the fact that there is only one group of people who can really help in this matter and those are the politicians. In a way, you cannot blame them. All their actions are governed by their tenure of five years sometimes ev en less in these times of political uncertainty. Their imagination refuses to stretch beyond this time limit, with the result that they cannot or are afraid to make any long-term decision. In the meantime, humanity suffers. In spite of the warnings of experts, these politicians refuse to see the problem that is facing all living beings, for what it is. And in collusion with some greedy, grabbing industrialists, they are hell bent on destroying life, the most fragile, the most divine of all things on earth.

American Higher Education Essay Example | Topics and Well Written Essays - 2500 words

American Higher Education - Essay Example This college later turned into the Harvard University where initially the focus was on Bible studies; however, alongside with subjects relevant to philosophy, astronomy, ethics, logic etc., there were subjects similar to those of the colleges in England. Harvard was basically a dignified institution created to teach the ministers, thus, being an elitist college. The colonial era saw the establishment of nine more colleges, out of which eight were affiliated religiously; however, all were private universities targeting selected students from strong backgrounds (Cohen and Kisker 89-90). These colleges include William and Marry School, the Yale University, the University of Pennsylvania, Princeton University, Brown University, Rutgers, Dartmouth, the Cowley and William College, all of which were aimed at intellectual development of the children of the privileged class. Following the war, the trend of college education started becoming popular; more and more schools started coming into existence. 1820`s and 1830`s are considered to be important years in this context as important debates were raised considering the scope and the curricula of education (Denham 45). Subjects like history were being coupled with sciences and a shift away from the medieval model took place at that time. This era also saw an increase in the number of working class owing much to the changing demographics and trends in the United States of America. Thus, the Congress became more sensitive in this context as the need to educate the masses was on the rise. ... ially the focus was on Bible studies; however, alongside with subjects relevant to philosophy, astronomy, ethics, logic etc., there were subjects similar to those of the colleges in England. Harvard was basically a dignified institution created to teach the ministers, thus, being an elitist college. The colonial era saw the establishment of nine more colleges, out of which eight were affiliated religiously; however, all were private universities targeting selected students from strong backgrounds (Cohen and Kisker 89-90). These colleges include William and Marry School, the Yale University, the University of Pennsylvania, Princeton University, Brown University, Rutgers, Dartmouth, the Cowley and William College, all of which were aimed at intellectual development of the children of the privileged class. Following the war, the trend of college education started becoming popular; more and more schools started coming into existence. 1820`s and 1830`s are considered to be important years in this context as important debates were raised considering the scope and the curricula of education (Denham 45). Subjects like history were being coupled with sciences and a shift away from the medieval model took place at that time. This era also saw an increase in the number of working class owing much to the changing demographics and trends in the United States of America. Thus, the Congress became more sensitive in this context as the need to educate the masses was on the rise. Therefore, after heated debates and efforts, Congress finally passed the Morill Acts of 1862 and later in 1890 (Burtchael 62). This reform constituted a land reform system where the pieces of lands owned by the Federal Governments would be allocated to establish public schools for those students who belonged

Principles, Practices, and Prospects of Nuclear Energy Annotated Bibliography

Principles, Practices, and Prospects of Nuclear Energy - Annotated Bibliography Example As the paper outlines, the books  Nuclear energy: Principles, practices, and prospects by D. Bodansky establish that the need for nuclear energy arises from the worldwide diminishing levels of natural fossils and other power producing utilities, which may render industrial revolution into a stable state. Bodansky relatively expounds that rapid population growth steered power consumption; thus, the dilemma pushed for a mandatory energy alternative source throughout the world (Bodansky, 2004). The writer argues that the scientific discoveries targeted to implement alternative sources of energy that would ensure constant production in the industrialized world. The writer emphasizes the production of nuclear energy over other sources, for example, crude, natural gas, and coal as it is a carbon-free emitting compound. Nuclear energy gained acceptability throughout the superpower countries that learned of the importance of producing the alternative energy source in stimulating economic g rowth, and significance in the gross domestic product (Bodansky, 2004). Bodansky elaborates on the intensive use of the carbon-free energy but relates the production as dependent on the radiant uranium neutron and electron reacting to produce energy. The author stipulates that the chemical reactions involving the neutrons and electrons appear in a sequence of reactions called the fission process (Bodansky, 2004). The writer depicts that possible emissions to the space range in millions of isotopic compounds and the effects would ultimately stimulate global warming (Bodansky, 2004). The author elaborates that, his arguments base on the following facts; nuclear waste disposal turns a tricky issue throughout the manufacturing countries as it is non-biodegradable, thus becoming harmful to the flora and fauna (Bodansky, 2004).

Mental Representation Is Based On Imagery Psychology Essay

Mental Representation Is Based On Imagery Psychology Essay There is few ways of representing thoughts in our mind, in this essay, we will be discussing about how mental representation is based on imagery, and also talks about whether speech recording is necessary for reading or not. Eysenck and Keane (2000, pp. 243) argued that, A representation is any notation or sign or set of symbols that represents something to us. In general, mental imagery is the mental invention or recreation of an experience that in at least some respects resembles the experience of actually perceiving an object or an event, either in conjunction with, or in the absence of, direct sensory stimulation. Internal, mental representations consist of symbolic representations and distributed representations (Quinlan Dyson, 2008). Symbolic representations can be regarded as some well-defined symbols. Every symbol represents a particular and distinct entity, including images. Indeed, symbolic representations are comprised of analogical and propositional representations (Quinlan Dyson, 2008). Analogical representations are a variety of images, which can be visual, olfactory, auditory and so on. Although information represented by these images can be acquired from a variety of perceptual sources, the analogical representations are concrete and connected to a particular, specific sense modality instead. In contrast, the propositional representations are more discrete and abstract. Information represented by them can be acquired from any modality. This kind of propositional symbols is usually specific entities and the relationship between them is distinct as well. Propositional representations are discrete and abstract entities that stand for the ideation of the mind in any modality. Therefore, the representations can be treated as a basic language to represent various mental information. Propositional representations consist of three aspects, objects, relations and schemata (Eysenck Keane, 2000). In object concepts, each entity can be defined and characterised by its attributes and features. The definition of an object plays a crucial role in categorising things and organising memories, knowledge, concepts and mentality. Relations focus on how one object is linked to another and on the interaction between them in the propositional representations. For instance, if the relation is an action verb like hit, people should be able to determine what an agent, a recipient, and an instrument respectively are. Semantic primitives underlie a specific relation. Many psychologists took researches on examining whether semantic decomposition occurs (Eysenck Keane, 2000). In the expression that the sun melted down the ice cream, the specific objects are the sun and the ice cream, and the relationship between the two entities is represented by the predicate melt down. In this case , the mental representation is that the two entities, the sun and the ice cream, are linked together by the conceptual relation melt down. The concepts and knowledge in peoples mind which reflect the world are complexly structured. There are three relative structures, schemata, frames, and scripts. Schemata, involving a lot of concepts are commonly used by people to perceive the world. Scripts were proposed by Schank and Abelson (1977) to explain the knowledge in peoples mind of what happens every day. Also, frame was proposed by Marvin (1975; as cited in Eysenck Keane, 2000) and was widely used in visual perception. Therefore, propositional representation is a pretty crucial form of mental representation. Also, imagery is another form of mental representation, which is viewed as analogical representation. Analogical representations, especially visual images, are another essential form of mental representations. The long-time study of visual imagery can be traced back to more than two thousand years ago when Aristotle considered imagery as the main medium of thought (Eysenck Keane, 2000, pp. 258). Nowadays, the studies on imagery still continue. The essay will concentrate on three important sets of studies that illustrate the properties of imagery. In the experiment conducted by Cooper and Shepard (1973), the subjects were asked to determine whether the presented figure was the normal version or mirror-image version, compared with the standard one. The result of this experiment was that the more the test figure was rotated from the standard one, the more time the subjects would spend in making their final judgments. According to this experiment, the objects are mentally rotated in the same way that they are operated in the real and physical world. So, mental visual images have all the same attributes and features with those of actual objects in the real and physical world. However, Rock (1973) argued that the more complex the test mental images were, the more difficulty it was for subjects to make correct judgments. The second set of studies that I am going to disccuss about is on image scanning, this which represents another aspect of the nature of mental imagery. Kosslyn, Ball, and Reiser (1978) conducted a mental scanning experiment that subjects were asked to image a black dot moving from on point on the map to another. The result showed that the scanning time was linearly related to the distance between the two points (Eysenck Keane, 2000). So, images have similar spatial properties with those of objects in the real and physical world. Another set of studies about imagery is called reinterpreting images of ambiguous figures. Chambers and Reisberg (1985) showed ambiguous figures to subjects, to ask the subjects to interpret every figure in different ways. However, only if subjects had drawn the image of the figure, could they make a reinterpretation of it. The result indicates that the imagery is influenced by some propositional code, and people always ignore what is needed for reinterpretation. Therefore, imagery is also a necessary part of mental representation. Imagery actually represents the perception of the outside world in our mind and the reflection our internal mentality. Thus, imagery is an important element of mental representation, but cannot completely cover all the aspects of that. Also, mental representation is not simply based on imagery. According to Kosslyns theory of imagery, the upshot of the long-time conflict between propositions and images is that images are a distinct form of mental representations, and that images have obvious significance in functions compared with propositional representations. Propositional and analogical representations constitute the symbolic representations, as a key aspect of internal, mental representations. However, there is another form of mental representation which is called distributed representations. A distributed representation involves a simple network called a pattern associator (Eysenck Keane, 2000), with no symbols. The pattern associator represents the association between two different sets of units of an object in a network. Hinton et al (1986) proposed that the relationship between distributed representations and symbolic representations is not conflicting, but complementary. Thus, the high-level symbolic representations can be represented by lower-level distributed representations. Also, the lower-lever distributed representations are considered as fundamental part of the high-level representations. Vividly speaking, the symbolic representation is the macro-structure of mental representation, whereas the distributed representation is the micro-structure of cognitive representation. In conclusion, imagery is only an essential form of mental representation. There are also two forms called propositions and distributed representation. Instead of contradicting one another, the complementary among them is able to help people to perceive and represent the world.

Literature of the 1970s :: essays papers

Literature of the 1970s The literature of the 1970’s contains a divergent amount of writers and genres. Poems, novels, and short stories are the main forms of expression, and these were produced by writers from around the world. â€Å"Many of the books in the 1970’s revolve around a general theme of man’s alienation from his spiritual roots†(Gillis). One author of the seventies is John Updike. He portrayed his characters â€Å"trying to find the meaning in a society spiritually empty and in a state of moral decay†(Gillis). Interest in the 1970’s focused on writers as disparate in the concerns and styles as V.S. Pritchett and Doris Lessing(â€Å"English Literature†). V.S. Pritchett is noted as a literary critic of remarkable education. She is also considered a master of the short story. Doris Lessing went from writing short stories collected as African novels concerning the role of women in contemporary society. â€Å"No playwright dominated this decade of both social and artistic unrest. Among the most acknowledged were Sam Shepherd, Lanford Wilson, David Mamet, and Neil Simon†(Gillis). Another noted playwright is Edward Franklin Albee. He is an American playwright whose most successful plays focus on familial relationships. His early plays are characterized by themes typical of the theater of the absurd. The characters suffer from an inability or unwillingness to communicate meaningfully or to sympathize or empathize with one another(â€Å"English Literature†). Another author of the seventies is Iris Murdoch. A teacher of philosophy as well as a writer, she is esteemed for slyly comic analyses of contemporary lives in her many novels such as The Black Prince. Murdoch’s effects are made by the contrast between her eccentric characters and the underlying seriousness of her ideas(â€Å"English Literature†). Eudora Welty, an American writer was born in Jackson, Mississippi. Some of her novels include The Robber Bridegroom, Delta Wedding, The Ponder Heart, and Losing Hearts. Her skillful re-creation of regional patterns of speech and thought make her well-noted. â€Å"Welty’s main subject is the intricacies of human relationships, particularly as revealed through her characters’ interactions in intimate social encounters†(Eudora Welty: Biography). Most of her novels and short stories are tales of eccentric and even hideous characters. She portrays them with charm and sympathetic humor. Many of the stories that brought her fame first appeared in The New Yorker Magazine. Another American novelist during the seventies was Michael Shaara. He was a short-story writer whose writing on military matters is known for its historical accuracy and realism.

Baroque and Impressionism Essay

Baroque art refers to the style that would be found in Europe and North and South America during the 17th and 18th century. The Catholic Church heavily influenced their art, as well as the Protestant rising up during this time. There was an emphasis on unity and harmony in all of the visual arts that often had themes from the Bible or stories. There was realism and more attention was paid to physical details in portrait paintings, there was more light contrast, landscapes were more expansive and there was use of more deep, rich colors. In architecture there were structures that expressed humans longing for spirituality and there was extreme presentation and in the grand scale it was reflected theatrically (Mindedge, 2013). In the Baroque period the art would depict a play, that it was not just a picture but every figure would have meaning, the art was meant to be read just not looked at as decoration. Figures would be drawn with realism, they have depth in the art, and they are almost falling off the page. They used dark shades and lights to show realism in their paintings. This was brought on with the further discovery of how our universe was formed, how we are not the center of the universe and also with that discovery, we discovered that Europe is not the middle of the Earth as well. Each painting had a story, told about us, about real people and there was more realism than before. Sculptures were made to be experienced, they were made not as standing men but men in action, they told a story in each sculpture that was made in this period. The social conditions that contributed to the Baroque period began with the rebirth of people, the Catholic Church had overcome the Protestant rising. There was new life and new water brought in to Rome and other major cities. We made discoveries that had shown us that the Earth was not the center of the universe like we had previously thought, also the discovery that the Earth was not flat. We had explored across the Atlantic and discovered the Americas as well. This was a time of great growth and triumph, and this was all shown in our paintings, which told their stories, and the sculptures that shared their tales. Impressionism which would be found in France in the late 19th century, took a fresh bold approach to painting. Impressionism did not paint pictures of the past, or historical figures but instead they painted pictures of their reaction to now. There were pictures of current landscapes, current people and the painting was often done very vividly using lights and colors and were very over simplified, often leaving out many details. Many artists focused on the interactions between sunlight and color and the way that the light would be interpreted by the eye. Storing paint in tubes at this time allowed artists to paint outside the studios, they could take their canvas, put it down in front of a scene and paint it in the natural light and see how it impacted the landscape (Mindedge, 2013). In the Impressionism era the opera house in France was completed, there was a time that new classes of people came forth and they felt they should be able to enjoy themselves. Paintings were painted at events, they were treating the world as a spectacle, there would be people enjoying themselves, going about their everyday lives and that was depicted in their paintings. It would be open air, mostly simple art, visible brush work and no form that made their work look sloppy. There was much interest in painting outdoors and each artist would put their own vision on the landscape. The relationship between the Baroque and the Impressionism periods were few, the stylistic similarities between the eras were using lighting to make the paintings come to life, they would paint in a way that it would tell a story, the Baroque period there would be large canvas that would go from one story to the next, and in the Impressionism period artists would paint a party, a gathering and show what it was like, or give the current mood and story behind the event. The differences between the periods is the detail in the art. The Baroque period paid large attention to detail in the art, there was blending and lighting differences and the art was life like. The Impressionism period the art was often like a draft, there would be paint brush marks on the painting still, there would be blotches lines and there would be details missing from the paintings. Baroque and Impressionism do have similarities with their subject matter. Ordinary objects and people were used as subject matter in the Impressionism time. This was also used in the Baroque period since the painters did not create art just for the upper class, and it was painted for the merchant class as well which led them to use ordinary people and objects in their art. Impressionism deviated from the Baroque period in details, the Realism period was before the Impressionism period, and it still contained many details from the Baroque period, but with the Impressionism art there were many details and stories that were lost. The pictures didn’t depict life like characters, there was often sloppy work with less than ideal lighting, and the art was also made outdoors, often with the painters taking the canvas to their location, in the Baroque period you went to your canvas or painted in a workshop because the paint was not portable like in the Impressionism period. Impressionism was the end of conventional art, the Baroque period showed life like sculptures and paintings, Impressionism went away from that. Impressionism gave the artists freedom to break away from the usual art that was photo-esc, they would paint how they wanted, they left brush marks and would give little details compared to the Baroque period. The specific work of art I chose from the Baroque period is The Abduction of Europa by Rembrandt van Rijn and from the Impressionism period I chose the Houses of Parliament by Claude Monet. The comparisons between the two paintings are their attention to details, The Abduction by Rembrandt van Rijn is a very detailed picture of a lady on a horse that is running into the water, there are people on the shore trying to get her to stay there but she is being abducted across the river. The Houses of Parliament is a picture of a dark castle type building that appears to be on a river or lake, there are clear brush marks on the picture and it is not very detailed, the strokes are very rough unlike in The Abduction of Europa where it is a very fine line, it is almost hard to tell what you are looking at because of this. Impressionism changed how the world saw art, artists were no longer constrained to painting indoors, and they could move their canvas to any scene that they wanted to paint, carry their paint tubes and then paint. Artists were liberated from what art was, there were no rules or technique that they had to follow, and they were free to paint how they wanted and what they wanted. There are brighter color used in art now which is a direct influence from Impressionism times, and it is widely considered that Impressionism is the root of all modern art (Alan Oz, 2012). Alan Oz (2012) Retrieved from http://www.impressionism.org/finis.htm Mindedge (2013) Baroque and Impressionism. Retrieved from http://wgu.mindedgeonline.com/content.php?cid=19779

Work in partnership

Work in partnership in health and social care or children and young peoples settings. Explain the Importance of partnership working with: Colleagues Other professionals Others Working in partnership with other colleagues and professionals is detrimental in being able to provide a service fit for need as It helps promote team working which I believe motivates a team to work well and excel them. It also helps every person involved in providing the service aware of all obstacles that could arise and any outcomes to achieve or have been achieved.Within a children's setting it can also elf build positive environments for children to be in and this would help a child or young person settle better into a new environment so that you are able to assess a person or child and manage tasks efficiently. It helps creates a safe environment to share Information as nearly all professionals update themselves with technology, information can now be sent password protected Vela a encrypted system which deters others from being able to access a person's private information by a secure connection.Sharing information about a person can help the smooth running of a arrive as it enables all involved to be fully aware of each person's position and remit and allows others to know who to approach for feedback or guidance. Working In partnership with others I. E. Family members or careers helps with the smooth running of a service, as family members hold a lot of Information past and present about a person which can be used to build a care plan. Family are often keen to assist with service provision for a person and by working in partnership with them it creates positives relationships.You can put a person's mind at ease with regard to the level of support a person may need. If it is a child or young person a parent or guardian would need much reassurance to know that they are leaving the child In safe capable hands therefore It Is Imperative that pre assessments are carried out. We have in the past used an informal interview process for new services for a person who may have either complex or long term needs I. E. A waking night service. We would before the service is due to start we would set up an informal meeting at the clients home and arrange for 3-4 people to go and meet the client their family or NOOK.This would allow them to put any questions forward and explain specific tasks ND how they should be carried out. It also helps as when the service does start the person coming to assist Is not a stranger. This In turn helps a nook, guardian, parent or family member enjoy their respite without fear of the person not being able to manage. This has worked well on many occasions and this is something we intend to keep as a way of matching the correct care support assistant to the person who needs support.Partnership working can help to deliver better outcomes for all health and social care professionals from a commissioning, performance management, service delivery and arrive improvement purpose. As we move forward with new legislation and processes it is important to deliver person centered care. This means we need range of expertise, knowledge and experience in order to deliver the best possible service for an individual. From the outset we are able to use the information gathered from social worker assessment, hospital discharge letters care plans and risk assessment to produce a plan tailored for a specific person.For example we currently have client who requires support from a team of Care Support Assistants, District Nurse Teams and mental health community team. By working in partnership we are able to get up to date information and guidance on the person's condition and how to manage it from a professional point of view. We work well with arranging our service delivery around the schedule for the District Nurse's therefore we book out daily visits either before or after their due to attend for two reasons.We found that when we attended for a review meeting and there were too many people in the property this caused panic and distress to the service user it was agreed by all that any visits would be made by appointment only and by 2 people maximum, also due to the high demand ND limited resources District Nurse teams have, it worked well by planning our visits to a different time to their arrival so that they were not kept longer than they needed to be and vice versa for our staff.There is a Joint log book left in the property for any concerns or follow up actions to be taken and this is signed once the action has been acknowledged or completed. We worked with the service user to make this plan to minimize disruption and undue distress to him as by not following this plan could lead to a setback in his recovery which in turn would mean outcomes would not be met. Therefore in this instance and for most it shows that partnership working is how we proceed to working to ensure that outcomes are met efficiently and if t his cannot be achieved how we change our methods to enable achieved outcomes.Explain how to overcome barriers to partnership working. There can be many barriers to partnership working and most commonly arise due to a lack of experience, lack of time and a disregard for importance. Others include a lack of trust especially when it comes to children. There are many parents who initially will put a barrier up to professionals as they tend to feel that strangers are miming in to their home to tell them how to be a parent or how to look after their child. A good way of overcoming this barrier is to build a relationship with the family first, listen to the incidents, issues or concerns they have.By supporting them through the crisis/difficult time will build trust within the circle and helps them to make informed choices in a relaxed environment. Acknowledging each other's expertise for example a parent will feel they know their child better than any other person which is correct however a professional will have seen a child similar to the en they have been allocated to many times therefore with their Joint expertise this family unit not to criticism them and this can lead to positives outcomes and overcome barriers in partnership working.For adults it can be easier to break through these barriers especially if it is to support a person who has capacity. By speaking to them to conduct assessments you get to build a good idea of a person's character, need and attitude toward a service. It allows you to build a rapport with someone share stories and common interests if any. This can be relationship building. I recently had this experience with a service. I was contacted privately by a husband and wife who have physical disabilities, they are wheelchair and housebound without assistance.Upon speaking to Mrs. x it was clear she had some bad experiences with other providers. I decided to visit them in their home to get a broader picture of the service they wanted and pro blems they had in the past to try and work out how improve their opinions of care providers. Upon speaking to them it was clear that although they both have medical conditions that reduce their ability to be fully independent they were not totally incapacitated. They wanted to be treated s adults not children or elderly people who were not able to fend for themselves.They had social needs Just the same as those who are fully independent for example going to the cinema and shopping. Mr. x is a keen football fan and liked talking about sports. I believed I had gained some thrust and set about finding the ideal person to provide their service. We have had the service for approximately 1 year and in that time we have had to make changes to care workers who did not work out but the current Care Support Assistant has been with since February 2014 and all communication with Mr. and Mrs. is positive.It is in agreement that planned absences require a second and third person to cover their se rvice and shadowing the regular Care Support Assistant always takes place. By working together closely for those 3 months and investing my time in to rebuilding their opinion I feel I have worked in partnership with them and succeeded in overcoming the initial barriers that were there. Explain own role and responsibilities in working with colleagues. My role as the Service Team Leader/ Registered Manager firstly has a legal responsibility to ensure that everyone who is in receipt of a service is kept safe from risk, harm and abuse.It is my Job to ensure that all staff are fully equipped with knowledge and training to go into the field and demonstrate that they are able and suitable for the role they have been appointed to. It is my role to supervise the office staff to give guidance and support where necessary. Set tasks on week by week basis according to the needs of the business. I take the lead on any complaint or safeguarding referral we may receive and investigate. I am respons ible for the petty cash kept on site and to provide our accounts team each month of the breakdown of money spent.It is my duty to complete supervisions and appraisals for office and lied staff, maintain a good working relationship with local authorities. Providing my seniors with a monthly KIP report. Keep a professional boundary with all staff and service users. These are an example of what is expected of me in my role however I out of hours service on a Rota basis, provide all induction training for new applicants as well as refresher training for existing members of staff. Evaluate own working relationship with colleagues.To evaluate my own work I need to be able to request positive or negative criticism as to how I may have handled a situation so that I can learn from the experience and improve for next time. I need to be able to self evaluate and not Just rely solely on another persons opinion. By doing a self analysis I am able to pick up what my strengths and weaknesses are t o be improved. This can also help with the quality of my work and setting myself targets to achieve to feel a great sense of completion helps motivate me which in turn passes on a positive working environment on to my team to help all of us excel.I feel presently as I am very open and honest with all my staff and my approachable manor I feel that I am able to communicate well my expectations of how I believe the service should be run and this is passed on to field Taft and rarely do I feel I need to display any negative comments on to the team. We communicate by text and email with our field staff and I often send out messages of gratitude to those have worked well over weekends as there are many issues that could prevent a service running smoothly.I feel that by appreciating my staff at any level I have formed good working relationships however there is always a need for improvement. Explain own role and responsibility in working with other professionals. It is my role to build rel ationships with outside organizations such as local authorities, district nurse teams, hospital teams and social work teams. I take the lead with all safeguarding investigations and work with the professionals involved in resolving the issues raised.Although it is my duty to take the lead I expect my office to be able to share the responsibility to an extent for example if I am away from the office for any reason I. E. Annual leave or sickness, I expect the rest of the team to be able to conduct an initial investigation to gather facts and provide a summary of the incident or concern raised so that I can take over on return. I feel that this does not emit the office to one way of working or delay important tasks. It can also help promote personal development to enable a Junior member of staff to gain experience in order to progress either within or outside of our organization.It is my role to attend all contract meetings to discuss possible issues within our service or for feedback to passed back to our staff to give thanks appreciation for something we did well. Evaluate procedures for working with professionals. The procedure for working with other professionals remains the same across the board. Every person is expected to treat all they come into contact with, with respect, e adhered to at all times and personal information is not being discussed with those outside of the professional circle. Information relating to a person or child should be shared on a need to know basis and as agreed.Each professional is responsible for their own department and are expected to deal with matters as they arise within agreed timescales. Professionals are expected to work together to obtain the best possible outcomes in the safest way. Each person has a duty of care to protect those they care for from being subjected to any form of harm or abuse and to port any concerns to a senior person or to a care management team within a local authority. Professional opinions should b e sought from specialist teams before partaking in any task that could potentially cause concern.For example the procedure for reporting any concern or information regarding one of our clients from the local authority is to write a detailed email containing all the facts we have at hand. We then send this to the placements and brokerage email who are regarded as our contact team within this borough. This is sent via a secure website with password protection. They will then forward on to the relevant social work team in order for this to be either recorded or dealt with. We then if need be wait for a response and a resolution to the query and work together to reach an outcome.Analyses the importance of working in partnership with others. It is extremely important to work in partnership with others as every person wants the best level and quality of care for the person they are dealing with, acting on behalf of or have a personal relationship I. E. Parent, child, guardian NOOK. I feel the best outcome sought by all is the wellbeing, safety and happiness of the person or child who requires support. There is also a level of consistency for not only you but for the person or child you are supporting.Children need consistency especially if you are supporting a child who has autism. Children who live with this condition require a huge amount of support. They do not adapt well to change and require routine to help them have a good quality of life and experience. By not working in partnership with others it would not be possible to build and establish relationships, improve service delivery and help the child transition well to an adult. For an elderly person working in partnership helps them have a better quality of life by having a nit of support who know their needs and are familiar to them.By working in partnership it allows every person you support to access to different activities and support. It is also good to surround yourself and your settings with profession als from all backgrounds and groups and to create relationships so you can use, learn and share resources and experience to achieve outcomes. Evaluate procedures for working with others. Professionals. The main requirement is be honest, communicative and detailed in every aspect. It is important to seek consent and permission from the person or a hill guardian, parent or NOOK you are supporting before any tasks procedure or assessment takes place.It is important that you involve others in the care planning process in order to achieve the outcomes as they know themselves or their loved one best to know their strengths, weaknesses and desires to a service delivery. You are expected to treat others with respect and dignity. As part of our pre-employment paperwork all staff office and field base are expected to sign and adhered to the dignity promise. Continued regular monitoring and supervision ensures that others are adhering and receiving all aspects of the dignity promise.That any c oncern raised will be dealt with efficiently and professionally. It is more common for others to become upset and angry and may fall from treating people with respect. However this does not absolve a professional from completing their task, but it does mean that an increased sense of awareness needs to be adopted so that all can remain safe. We previously had a service user that all we was required to do was support him in taking his medication. Unfortunately his wife suffered with Dementia and she would often try and attack staff and make accusation that they were trying make her husband ill.After working with family the service user himself and other professionals it was decided that this call would be attended by two care workers. Although it did not require 2 care workers to support him to take the medication, the second care worker was sent in to distract his wife so that the first care worker could safely support him. This was due to all involved wanting the outcome to be safe . Mr. x was less anxious about the distress it caused upsetting his wife and being concerned for his own health if he did not receive his medication. We continued to monitor this new approach and all feedback was positive.

The South China Sea A Historical Overview

The South China Sea A Historical Overview The sea is dotted with hundreds of small islands, atolls, and reefs, only a few of which are actually inhabitable and all of which lie outside the internationally-recognized 12 nautical miles territorial limit of the squabbling nations. Geopolitical disputes over the ownership of the South China Sea were a frequent topic of international news in 2012, and indications are that they will continue to be so for some time to come. Here is a brief primer on why this part of the world has become such a diplomatic hotspot. Where is the South China Sea? The South China Sea is a broad body of water lying between the coast of the Southeast Asian mainland and the island nations of the Philippines, Malaysia, and Indonesia. It is bordered on the north by Taiwan and the southern coast of China, on the west by Viet Nam, on the south by the Malay Peninsula and Borneo, and on the east by the Philippines. DOKDO ISLANDS ARE KOREAN PROPERTY As shown by this map, China claims virtually all of the South China Sea, which is the source of the sharp disputes it has had with other countries, primarily Viet Nam and the Philippines. The sea is dotted with hundreds of small islands, atolls, and reefs, only a few of which are actually inhabitable and all of which lie outside the internationally-recognized 12 nautical miles territorial limit of the squabbling nations. The claims of the Philippines, Viet Nam, Indonesia, Malaysia, and Brunei Darussalam to parts of the South China Sea are based on geographical proximity, historical claims, and the 200 nautical mile limit to â€Å"Exclusive Economic Zones† provided for in the 1982 UN Convention on the Laws of the Sea (UNCLOS), which is not recognized by China. Do Any of the Countries Have a Legitimate Claim? Because there is very little physical land that can be occupied in the South China Sea, none of the countries involved has established a clear, indisputable sovereign claim. In 1947, shortly after the Communists came to power in China, the Chinese government published maps purportedly dating back to the 16th century showing the sea as part of Chinese territory and claimed the area had been used by Chinese fishermen and traders for more than 2,000 years. Viet Nam in particular disputed this, producing documents of their own showing the Paracel and Spratly Island groups as part of their territory as early as the 17th century. The claims of the Philippines to the Spratlys and the Scarborough Shoal, which lies about 150 kilometers west of the Philippines, are based on those areas lying closer to the Philippines than any of the other countries. Malaysia, Indonesia, and Brunei base their claims on the provisions of the UNCLOS accord. Why is the South China Sea Such â€Å"Hot Property†? The most important reason is natural gas and lots of it. Although the continuing disputes have prevented much exploration in the South China Sea, indications from the few surveys that have been done indicate it may contain reserves of up to 25 trillion cubic meters of natural gas, which if true would make the area the third- or fourth-largest concentration of gas in the world. In addition, the South China Sea is believed to hold oil reserves of up to 28 billion barrels, according to estimates by the US Energy Information Administration. The South China Sea is also a strategically important shipping region linking Singapore, Malaysia, Indonesia and the Indian Ocean with China, Japan, and the rest of the Pacific Ocean; about a third of the world’s sea traffic is said to cross the South China Sea. The sea is also a rich fishing ground and supports most of the commercial fishing done by the Philippines, Viet Nam, China, and Malaysia. Key Events in the South China Sea The most serious clashes have occurred between China and Viet Nam, who have had naval battles over the Paracels and the Spratlys. In 1974, China launched an amphibious assault on the Paracel Islands then occupied by Viet Nam, seizing the island group after a short, violent fight that killed about 70 Vietnamese soldiers. In 1988, a naval engagement between Viet Nam and China in the Spratlys ended with several Vietnamese gunboats being destroyed, with a loss of about 60 sailors. More recently, an attempt by Philippine Coast Guard forces to arrest Chinese poachers in the Scarborough Shoal in 2012 led to a tense naval standoff that saw both nations send dozens of vessels to the area, and created a diplomatic crisis that has since settled down but has not been resolved. China also angered both Viet Nam and the Philippines in 2012 by redesigning its passports with an illustration of a map showing the South China Sea as part of its territory; as a result, both countries briefly refused to issue visa stamps to Chinese travelers carrying the new, offensive passports. Other small provocations are frequent occurrences. An unconfirmed report of Chinese interference with Vietnamese oil exploration vessels in 2011 led to massive anti-China demonstrations in Hanoi and Ho Chi Minh City; the Vietnamese for their part routinely conduct live-fire naval exercises in the South China Sea, drawing protests from the Chinese government. And in 2012, the Philippine government issued a directive renaming the South China Sea to the â€Å"West Philippine Sea,† further irritating China. Will the Disputes Be Ever Resolved? The Association of Southeast Asian Nations (ASEAN), which includes all the claimants to the South China Sea except China and Taiwan, has on several occasions attempted to develop a binding â€Å"code of conduct† for nations in the South China Sea, with little success. China for its part has consistently resisted moves to â€Å"internationalize† the dispute, preferring to negotiate on a bilateral basis with individual countries. Although some discussions have taken place, most recently between the Philippines and China over the Scarborough Shoal incident, none of the countries have been willing to relax their claims, suggesting the issue will be a source of tension for some time to come.

Contract Assignment Essay Example | Topics and Well Written Essays - 1000 words

Contract Assignment - Essay Example With at least two forms –the vendors and the purchasers—vying for legal standing the courts find themselves adjudicating a battle of the forms. They must determine what form applies, if any, or, alternately, that neither form applies and by default, a given contractual dispute must be resolved by recourse to the Sale of Goods Act rather than by the terms and conditions set out by either firm. (â€Å"Sale of Goods Act C. 54† 1979) his was the judgement that the court arrived at in â€Å"GHSP INC v. AB ELECTRONIC LTD† [2010] EWHC 1828 (Comm) Case No: 2008 Folio 1353. Neither the form of the seller AB Electronic Ltd. nor that of the purchaser, GHSP Inc. was held to be valid In lieu of a specific contract the court relied on the â€Å"Sale of Goods Act, 1979†. This issue is of considerable importance for both buyers and sellers. Understandably, the sellers standard form will contain terms that are beneficial to the seller while the purchasers form will favour the purchasers interests. Often the determination of which contract is applicable will resolve the dispute, implicitly, in favour of the party whose contract is accepted by the courts. It is for this reason that a battle of the forms can have such great importance. For more than thirty years the courts have relied on Butler Machine Tool Company Ltd. v. EX-CELL-O Corporation (England) Limited† [1977] EWCA Civ 9 Case No. 172 B. No. 234 when confronted with a battle of the forms. Briefly, Butler contracted to produce a production machine for EX-CELL-O Corp. They produced a contract for production of said machine with a price, terms and delivery details. EX-CELL-O responded with acceptance of the price on their own form that contained different details, particularly as they related to additional costs incurred prior to their receipt of the machine. Butlers contract contained a clause allowing them to charge any price increases

A short literature review of the level of awareness amongst general Research Paper

A short literature review of the level of awareness amongst general dental practitioners regarding implant maintenance - Research Paper Example They carried out a survey among 100 (64 males & 34 females) general dental practitioners through a questionnaire, which was aimed to get the feedback and opinions from both general practitioners (GPs) and dental specialists with regard to periodontal care. Multivariate Logistic Regression was used to find out the key variable impacting the survey responses. They quoted that â€Å"In a study of a similar pattern, Zemanovich et al, have evaluated the demographic variables affecting patient referrals from general dental clinic to a periodontist. They concluded that various factors such as gender of the dentist and the proximity to a periodontist affected the number of referrals by a general dentist.† The results showed that 98% of the GPs conducted the initial surgical therapy by self without having any recommendation to do so and performed scaling whilst advising certain mouth washes and brushing techniques. However, the results revealed that over 67% of the dentists never performed splinting. The survey further revealed that the role of a periodontist was found limited to a surgical therapy and most of the dentists did not carry out a Root planning. Another key finding indicated that the dentists have a greater level of awareness with regard to methods demonstrating maintenance of oral hygiene. Despite having a sign of periodontal disease, we found that only 33% of the dentists referred patients to a periodontist. Further, many GPs do not believe that implant is a core of curing periodontal disease thus there is a difference in opinion among general dentists with regard to reliability of periodontal treatment. â€Å"Such studies should be performed in future to get an overall perception of the general dentists toward periodontal treatment in India. Such studies performed at different intervals of time in the same cities can also provide an idea about the changing trends

How does changing the ways in which we connect to others offer us new, Essay - 1

How does changing the ways in which we connect to others offer us new, positive possibilities How does it affect us negatively - Essay Example The development of new technologies has been providing all the more new ways of communication and connection between people. The distances are becoming faster and easier to overcome; contacts are easier to establish; new acquaintances and connections surround us everywhere, 24/7. Nowadays, technologies offer the mankind a thousand options and opportunities – for work, shopping, entertainment and communication. One doesn’t need travel to another part of the country or even the world to see and talk to his/her relatives as it is now possible to call them on the phone, e-mail them or write on Facebook. Keeping in touch with friends is also much easier via social networking technologies, and prompt professional communications are guaranteed as cellphones, faxes and computers are always at your fingertips. In general, technology has been playing a significant role in our lives recently, and its importance continues to increase. Growing popularity of the World Wide Web make u s more and more addicted to the new ways of communication and connecting to people. In fact, our entire social life is now dominated by technological means of communication, which produces a complex and dubious effect on us. However, the contour of things used to be different even a century or two ago: Adam Gopnik states that the key to the changes in our overall lifestyle and social behavior lies in invention of telegrams and trains (Gopnik). Yearning to reduce distances and draw closer together, people have invented technologies that have taken roots in the world’s developed communities so firmly that they might have a devastating effect. So what are those multifaceted impacts the new ways of connection between people have? Talking of the positive effects of globalization and growth of technological means’ of communication role, one should focus foremost on professional and personal relationships that

Skills and Characteristics of Mental Health Human Service Workers Essay Example for Free

Skills and Characteristics of Mental Health Human Service Workers Essay Skills and Characteristics of Mental Health Human Service Workers Human service workers are people who are chosen to work with people. Human service workers help clients become more self-sufficient. The workers are there to help what issues the client is currently experiencing to be handled with some ease. Human services workers evaluate and plan, put the plan into action, and provide emotional support (Moffat, 2011). These workers help in the mental health care because they allow the person to become a part of their treatment and believe that someone is on his or her side. Human service workers work in many capacities in the mental health care system and other agencies. They have to meet clients at the level in which they understand and operate. They not only help the client, but also help bridge family input to help the client adjust. Human service workers become vital in the recovery process. Human Service Workers in the Mental Health Service are social workers who strive to make better options for their clients. They help the client obtain the treatment they require and in some instances if family connections are needed they help restore him or her. Human service workers become a part of a client’s life until he or she can enter mainstream America and survive on his or her own. Surviving on their own may not always be an option and the assistance of other agencies, families, and workers are vital to the clients survival. The human services worker is like a life coach to the client. Each session has to provide them with a life skill and an assignment for them to complete. This is part of the recovery process because there is an ending to this process. It is done in stages, and it is a lesson learned every time. The human services worker becomes a part of the client’s life but must recognize that once the session ends he or she progresses on to the next client and assist them with their concerns. The client has to know that in that moment that he or she matter. Personal characteristics of people differ for those of a career in human services. Human service workers have to understand that a career in this field is a calling and not a choice. To work with people and make them feel as if they matter is a calling and not something they choose to be good at. Human service workers have to be personal, friendly, willing to go the extra mile, and fight on behalf of the client. The person has to relate to people and understand his or her level to understand. The characteristics that I feel are most important are able to meet people on their level and know that sometimes you have to change your manner of speech. Empathy is a characteristic is useful in being a human services and one that I do not show very often. I have sympathy, but empathy is something that I personally have to work on. In addition to the empathy leadership is a characteristic and the most important is communication. You must be able to communicate with the client, your peers, and other agencies to complete your task of helping your client. Empowerment would be a huge characteristic as well. This will give you a feeling of being able to do what needs to be done within your scope of available resources. This makes human service workers effective in the jobs they do and meeting the needs of the clients they assist. I know you must separate your personal feelings from your professional feelings. An effective worker knows how to separate them and make sure that the lines do not cross. Human service workers are needed to help with facilitating the assistance that some clients need and without their help agencies would not be able to be effective. Human service workers have a definite position and the must also exhibit certain characteristics that make them worthy of the position they hold as well as the work they do. The thought process for human services can occur in different manners. Most agencies that provide human services are nonprofit. One of the largest nonprofit organizations that help in human services is the church. They may not provide mental services but the do provide assistance and are also able to direct individuals as well as families to other agencies that may also offer assistance. The church in its capacity may provide living arrangements, food vouchers, or even some travel expenses. The church will help those in the community it is in or the members who attend. The church I am most familiar with is my church. The church has a benevolent committee that assists members as well as others in the community. If there is a need the church tries to fulfill that need. Our benevolent committee will meet with the person who has a need, such as paying their electrical bill. The person needs to provide a copy of his or her electrical bill for review. They also have rules and guidelines as well and one rule is that you cannot request the assistance of the committee but one-time within a 90 day time frame. Special circumstances occur in agencies whether private or public services and will be dealt with on a case by case basis. Example of how services are provided. A family had come to the area, and they were struggling. The husband was the only one working at a minimum wage job, the wife was pregnant, and he and she were about to be evicted from his and her apartment. The attended church but no one knew his and her struggle. Upon learning in their struggle it was learned that they did not have a fully furnished apartment. Our benevolent committee was notified of this and went into effect. They assisted in getting the apartment rent current, paid the electrical bill, and other necessities bills that were not current. The family was then taken to the grocery store and other cleaning supplies. The church family, which was not a part of the benevolent committee but saw the need went into effect and donated furnishings to the family, which included living room furniture, dining room furniture, and bedroom furniture. These items were much needed and the family truly appreciated them and as things occur when you believe in a higher power the husband was offered employment that allowed him to leave his minimum wage job. The services of the church as a nonprofit human services advocate shows that help is available. Mental Health Services are most commonly linked to human service workers. Mental Health Services can be a good option to some, and it can also follow under corrupt actions by family members who abuse the assistance offered. The good is offered by mental health services and the human service workers who work on their behalf is funded by the states. Human service workers who work for the state and help families apply for services and funds that are available for their way of living. The state funded agencies will allow clients to have housing at a reduced amount as well as qualify for Medicaid, food stamps, and a government checks. These checks give the client a level of freedom and a normalcy to living. Social Security Disability (SSI or SSDI) is offered to families whether they are children or adults. Not everyone qualifies for these benefits, but it is the job of the human services worker to help with filing for these services and the individual to supply the worker with the information needed to ensure services are provided. I know of a child who was born prematurely, and she was able to obtain SSI benefits due to her being born before the mothers estimated due date. This provided the mother the option to purchase items needed for the child. The above is the good that comes from receiving SSI. There are some corrupt individuals who receive disability checks. I say corrupt because the person who helps oversee the individuals that receive the checks does not use them in the manner in which who are supposed to. The human service worker does not have any control over the individuals and who they designate as his or her caretaker. I know of a family in which they receive five SSI checks in their household. However, the person designated as the caretaker does not take care of the individuals who receive the checks. Their household bills are never current and they never have enough to make ends meet until the end of the month. However the caretaker does just enough to keep the family a float and uses the majority to take care of her family. For example the family in which the five checks are disbursed to have had to move from a three bedroom home to a two bedroom home because they were evicted. The eviction did not come due to the monies not being available, but because the monies were not used to pay rent. The family runs the risk of their utilities disconnected every month as well as the cable television services. The family also receives food stamps, but whenever you visit the family they are always hungry. The amazing thing in this is that the caretaker was recently able to have two new cars added to her household that require a monthly payment yet the caretaker is not willing to provide any transportation services for the individuals who receive the disability checks. This issue is a common known issue among the family yet when the other family members approach her she rejects this information. Adult protective services have been contacted and visits have been made to the house. The caretaker however is always able to pull off a well taken care home. The case manager assigned to the family cannot make any changes to the way the house is run because the person whose name appears on the check is within her sound mind. The effects this type of behavior has on the human services worker is that they work so hard to obtain services for the individuals, and the services are not being disbursed properly. The human services must make sure that in their evaluation they take into consideration the needs of the client and that the needs are being met. Human services workers can be seen as saints in the eyes of some clients and the devil in eyes of others. Human service workers must have the insight to determine legitimate cases yet it is not totally up to their discernments. Human services workers require some type of documentation to support their finding. The findings can be related to mental health services, medical services, and household services. The services have to be justified because many of these services are provided by nonprofit agencies. Everyone wants to feel as if they matter. I believe the goal and the priority of the human service worker. The client has issues or he or she would not have been looking for the help. The skills that the human service worker passes on to the client are useful and become useful to the client. The client begins to gain some self-respect and self-esteem about themselves. They start approaching life differently.

Procedures For Drill String Design Engineering Essay

Procedures For Drill String Design Engineering Essay This chapter presents general procedures for drill string design. The design aspects of critical importance and factors controlling drill pipe selection are highlighted. The term Drill Stem is used to refer to the combination of tubulars and accessories that serve as a connection between the rig and the drill bit (RGU lecture slides). It consists mainly of Drill Pipe, Drill Collars (DC) and Heavy Weight Drill Pipes (HWDP) and accessories including bit subs, top drive subs, stabilisers, jars, reamers etc. Drill stem is often used interchangeably with the term Drill String which actually refers to the joints of drill pipe in the drill stem. For the purpose of this report, Drill String will be used to refer to the string of drill pipes that together with drill collars and heavy weight drill pipe make up the drill stem see fig 3.1. 3.1 DRILL STEM COMPONENT DESCRIPTION 3.1.1 Drill Pipe The drill pipes are seamless pipes usually made from different steel grades to different diameters, weights and lengths. They are used to transfer rotary torque and drilling fluid from the rig to the bottom hole assembly (drill collars plus accessories) and drill bit. Each drill pipe is referred to as a joint, with each joint consisting of a pipe body and two connections (see fig 3.2). Drill pipe lengths vary, and these different lengths are classified as ranges, the available or more common ranges include: Range 1: 18 22 ft Range 2: 27 30ft Range 3: 38 40ft. Drill Stem. Fig 3.1: Drill Stem with components. (Heriott Watt University lecture Notes: Drilling Engineering) Drill pipes are also manufactured in different sizes and weights which reflects the wall thickness of the drill pipe. Some common sizes and their corresponding weights include 31/2 in. 13.30 lb/ft and 4 1/2in. 16.60 lb/ft. The indicated weight is the nominal weight in air (pipe body weight excluding tool joints) of the drill pipe. A complete listing of API recognised drill pipe sizes, weight and grades are published in the API RP 7G. The drill pipe grade is an indication of the minimum yield strength of the drill pipe which controls the burst, collapse and tensile load capacity of the drill pipe. The common drill pipe grades are presented in the table below Grade Yield Strength, psi Letter Designation Alternate Designation D D-55 55,000 E E-75 75,000 X X-95 95,000 G G-105 105,000 S S-135 135,000 Table 3.1: Drill Pipe Grades. Drill pipes are often used to drill more than one well, therefore in most cases the drill pipe would be in a worn condition resulting in its wall thickness being less than it was when the drill pipe was brand new. In order to identify and differentiate drill pipes, they are grouped into classes. The different classes are an indication of the degree of wear on the wall thickness of the drill pipe. The classes can be summarised as follows according to API standards: New: Never been used, with wall thickness when to 12.5% below nominal. Premium: Uniform wear with minimum wall thickness of 80%. Class 2: Allows drill pipe with a minimum wall thickness of 70%. It is essential that the drill pipe class be identified in drill pipe use or design, since the extent of wear affects the drill pipe properties and strength. When specifying a particular joint of drill pipe, the class, grade, size, weight and range have to be identified, the specification could therefore appear thus: 5 19.5 lb/ft Grade S Range 2 Fig 3.2: Parts of Drill pipe. (Handbook for Petroleum and Natural gas) 3.1.2 Tool Joints Tools joints are screw type connections welded at the ends of each joint of a drillpipe. The tool joints have coarse tapered threads and sealing shoulders designed to withstand the weight of the drill string when it is suspended in the slips. Tool joints are of two kinds; the pin (male section) and the box (female section). Each drill pipe has a pin attached to one end and a box attached at the other end. This makes it possible for the pin of one joint of drill pipe to be stabbed into box of a previous drill pipe. There are several kinds of tool joints widely used: Joint Type Diagram Description Internal Upset (IU) Tool joint is less than the pipe. Tool joint OD is approximately the same as the pipe. Internal Flush (IF) Tool joints ID is approximately the same as the pipe. The OD is upset. Internal / External Upset (IEU) Tool joint is larger than the pipe such that the tool joint ID is less than the drill pipe. The tool joint OD is larger than the drill pipe. Table 3.2 Types of tool joints. (The Robert Gordon University Lecture Notes: Drill String Design) 3.1.3 Drill Collars Drill collars are thick walled tubes made from steel. They are normally the predominant part of the bottom hole assembly (BHA) which provides Weight on Bit (WOB). Due to the large wall thickness of the drill collars, the connection threads could be machined directly to the body of the tube, thereby eliminating the need for tool joints (see fig 3.3). Drill collars are manufactured in different sizes and shapes including round, square, triangular and spiral grooved. The slick and spiral grooved drill collars are the most common shapes used currently in the industry. There are drill collars made from non-magnetic steel used to isolate directional survey instruments from magnetic interference arising from other drill stem components. The steel grade used in the manufacture of drill collars can be much lower than those used in drill pipes since they are thick walled. Functions Provide weight on bit Provide stiffness for BHA to maintain directional control and minimise bit stability problems. Provide strength to function in compression and prevent buckling of drill pipes. Fig 3.3: Carbon Steel Drill Pipes. 3.1.4 Heavy Weight Drill Pipe Heavy weight drill pipes (HWDP) are often manufactured by machining down drill collars See fig 3.4. They usually have greater wall thickness than regular drill pipe. HWDP are used to provide a gradual cross over when making transition between drill collars and drill pipes to minimise stress concentration at the base of the drill pipe. These stress concentrations often result from: Difference in stiffness due to the difference in cross-sectional area between the drill collar and drill pipe. Bit bouncing arising from rotation and cutting action of the bit. HWDP can be used in either compressive or tensile service. In vertical wellbores it is used for transition and in highly deviated wells, it used in compression to provide weight on bit. Fig 3.4: Heavy Weight Drill Pipe. (Heriott Watt University lecture Notes: Drilling Engineering) 3.1.5 Accessories Drill Stem accessories include: Stabilisers: these are made of a length of pipe with blades on the external surface. The blades are spiral or straight, fixed or mounted on rubber sleeves to allow the drill string rotate inside. Functions of the stabiliser include: Stabilise the drill collars to reduce buckling and bending Ensure uniform loading of tricone bits to reduce wobbling and increase bit life. To provide necessary wall contact and stiffness behind the bit to induce positive side force to build angle when drilling deviated wells. Reamers: used in the BHA to enlarge the well bore diameter and ream out doglegs, key seats, ledges. Drilling Jars: incorporated in the BHA to deliver a sharp blow and assist in freeing the drill string should it become stuck. 3.2 DRILL STRING DESIGN The drill string design is carried out in order to establish the most efficient combination of drill pipe size, weight, and grades to fulfil the drilling objectives of any particular hole section at the lowest cost within acceptable safety standards. In order to design a drill string to be used in a particular hole section, the following parameters need to be established: Hole section depth Hole section size Expected mud weight Desired safety factors in tension and overpull. Desired safety factor in collapse Length of drill collars required to provide desired WOB including OD, ID and weight per foot. Drill pipe sizes and inspection class The drill string design has to meet the following requirement: The working loads (tension, collapse, burst) on the drill string must not exceed the rated load capacity of each of the drill pipes. The drill collars should be of sufficient length to provide all required WOB to prevent buckling loads on the drill pipe. The drill pipes used have to ensure the availability of sufficient fluid flow rate at the drill bit for hole cleaning and good rate of penetration. 3.2.1 Design Safety Factors Design safety factors are applied to calculated working loads to account for any unexpected service load on the drill string. They are used to represent any features that are not considered in the load calculations e.g. temperature and corrosion, thus ensuring that service loads do not exceed the load capacity of the drill pipe. Design safety factor values are often selected based on experience from operating within a particular area, the extent of uncertainty in the operating conditions e.g. when operating in HPHT conditions, a larger safety factor is applied than when operating in less harsh conditions. Some commonly used design safety values are illustrated in the table below Load Design Safety Factor Value Tension 1.1 1.3 Margin of overpull (MOP) 50,000 100,000. MOP of 400,000 have been used in ultra deep wells Weight on Bit 1.15 or 85% of available Weight on bit to ensure neutral point is 85% of drill collar string length measures from the bottom (API RP 7G) Torsion 1.0 (based on the lesser of the pipe body or tool joint strength) Collapse 1.1 1.15 Burst 1.2 3.2.2 Drill Collar Selection The drill collars are selected with the aim of ensuring that they provide sufficient WOB without buckling or putting the lower section of the drill string in compression. 3.2.2.1 Size selection Lateral movement of the drill bit is controlled by the diameter of the drill collar directly behind it. Therefore the size/diameter of the drill collar closest to the bit will be dependent on the required effective minimum hole diameter and the relationship can be given as When two BHA components of different cross-sectional areas are to be made up, it is essential that the bending resistance ratio (BRR) be evaluated. This is important because BHA components have tensile and compressive forces acting on them when they are bent in the well bore. These forces cause stress at connections and any location where there is a change in cross-sectional area. Therefore it is important to ensure that these stresses are within acceptable ranges. The bending resistance (BR) of a drill string component is dependent on its section modulus which is given as Z = section modulus, in3 I = second moment of area, in4 OD = outside diameter, in ID = inside diameter, in The BRR is used to express any change in BR and can be calculated using BRR should generally be below 5.5 and in severe drilling conditions, below 3.5. 3.2.2.2 Connections When selecting connections to be used with drill collars, it is essential to check that the BRR of the pin and box indicates a balanced connection. The BRR for drill collar connection is calculated as the section modulus of the box divided by the section modulus of the pin. The API RP 7G contains tables that can be used to determine BRR for any box and pin OD. BRRs of 2.5 have given balanced connections (RGU Lecture notes, 2005). 3.2.2.3 Weight on Bit The maximum weight on bit required is normally a function of the bit size and type. The rule of thumb is: Maximum WOB of 2000lbf per inch of bit diameter when using Polycrsyalline Diamond Compact bits (PDC) and mud motors. Maximum WOB of 5000lbf per inch of bit diameter when using tricone bits. Other factors controlling WOB include inclination, hole size and buckling. In vertical wellbores the length of drill collars required to provide a specified weight on bit is given by LDC = Length of Drill Collars, ft WOB = Weight of Bit, lb DFBHA = Safety factor to keep neutral point in drill collars. WDC = Weight per foot of Drill Collars, lb/ft Kb = Buoyancy Factor. The neutral point as described by (Mian, 1991) referring to Lubinksi, is the point that divides the drill stem into two portions, with the section above the neutral point in tension and that below in compression. Therefore in order to ensure that the entire length of drill pipes remain in tension, the neutral point of the drill stem has to be maintained within the drill collars. According to the API RP 7G, the height of the neutral point measured from the bottom of the drill collars will be 85% of the total length of drill collars used, with 85% being the safety factor. In inclined wellbores, the angle of inclination has to be taken into consideration when calculating the maximum WOB that can be applied without buckling the drill pipe. This is because although the WOB is applied at the inclination of the wellbore, this weight acts vertically, thus reducing the available weight at the bit. Therefore to allow for this reduction, the buoyed weight of the BHA would be reduced by the cosine of the well inclination, thus WOB in inclined holes is calculated with the formula All parameters remain as defined in equation 5; ÃŽÂ ¸ is the angle of inclination of the well. As a result of the vertically acting weight of the BHA, the drill string tends to lie on the low side of the hole and is supported to some extent by the wall of the well bore. Therefore the pipes above the neutral point could only buckle if the compressive forces in the drill string exceed a critical amount. This critical buckling force is calculated as follows Fcrit = critical buckling force, lb ODHWDP = outside diameter of HWDP, in. ODtj = maximum outside diameter of pipe, in. IDHWDP = inside diameter of HWDP, in. Kb = buoyancy factor. Dhole = diameter of hole, in. ÃŽËÅ" = hole inclination, degrees. Since HWDP are sometimes used to apply WOB in inclined wells, and drill pipes are sometimes used in compression, the critical buckling force is calculated for both HWDP and drill pipes. 3.2.3 Drill Pipe Selection Factors to be considered for drill pipe selection include: Maximum allowable working loads in tension, collapse, burst, and torsion. Maximum allowable dogleg severity at any depth in order to avoid fatigue damage in the drill pipe. Combined loads on the drill pipe. The loads considered when selecting drill pipes to be used in the drill string is dependent on the well depth, well bore geometry and hole section objectives. In shallower vertical wells, collapse and tension are of more importance than burst or torsion. Burst is normally not considered in most designs since the worst case for a burst load on the drill pipe would occur when pressuring the drillstring with a blocked bit nozzle, even with this condition, the burst resistance of the drill pipe is likely to be exceeded. Torsion is of less importance in vertical well bores because drag forces are at minimal amounts unlike in highly deviated wells. The dogleg severity of the well for both vertical and deviated wells is important because of increased fatigue in the drill pipe when it is rotated in the curved sections of the wellbore. A graphical method is recommended for drill pipe selection, with the loads plotted on a load versus depth graph. This makes it possible for loads at particular points on the drill string to be easily visualised, and any sections of the drill pipe that do not meet the load requirements are easily identified and redesigned. 3.2.3.1 Collapse Drill pipes are sometimes exposed to external pressures which exceed its internal pressures, thereby inducing a collapse load on the drill pipe. The worst scenario for collapse in a drill pipe is during drill stem tests when they are run completely empty into the wellbore. The collapse loads are highest at the bottom joint of the drill pipes, as a result, the collapse load would normally control the drill pipe grade to be used at the bottom of the drill string. The API specified collapse resistance for different sizes and grades of drill pipe assuming either elastic, plastic or transition collapse depending on their diameter to wall thickness ratio have been calculated and are published in the API RP 7G with the relevant formulae. The maximum collapse pressure on the drill pipe when it is completely empty can be calculated as follows: Pc = collapse pressure, psi MW = mud weight, ppg TVD = true vertical depth at which Pc acts, ft. On some occasions, the mud weight outside the pipe varies from that inside the pipe, also the fluid levels inside and outside the pipe may also vary. This situation could also induce collapse loads. The collapse loads induced by this scenario can be calculated thus L = Fluid depth outside the drill pipe, ft MW = Mud weight outside the drill pipe, ppg Y = fluid depth inside drill pipe, ft MW = Mud weight inside drill pipe, ppg. The value for Pc is then plotted on the collapse load graph as the collapse load line see fig 3.5. It is recommended practice to apply a design safety factor to the collapse load calculated from equations 8 or 9 (depending on expected scenarios) in order to account for unexpected additional loads as wells as unknown variables. The value of the design factor is often between 1.1 1.5 for class 2 drill pipes. According to (Adams, 1985) the design factor should be 1.3 to account for the fact that new drill pipes are often not used for drill stem tests. The value of the collapse load multiplied by the collapse design factor is plotted on the collapse load graph as the design line, this is then used to select an appropriate grade and weight of drill pipe to fulfil these load conditions. Fig 3.5: Sample Collapse load graph. 3.2.3.2 Tension Load The tensile load capacity of the drill string should be evaluated to ensure there is enough tensile strength in the topmost joint of each size, weight, grade and class of to support the weight of the drill string submerged in the wellbore, hence the need to include buoyancy in the calculations. There has to also be enough reserve tensile strength to pull the drill string out of the well if the pipe gets stuck. The stabiliser and bit weight can be neglected when calculating the drillstring weight. In a vertical wellbore, the forces acting on the drill string are tension from its self weight and the hydrostatic pressure from the fluid in the wellbore. The hydrostatic pressure in the wellbore exerts an upward force on the cross sectional area of the drill string, which is commonly referred to as buoyancy. Therefore the resulting tensile load on the drill string attached to drill collars, taking account of buoyancy is calculated as: FTEN = resultant tensile load on drill string, lb LDP = length of drill pipe, ft LDC = length of drill collars, ft WTDP = air weight of drill pipe, lb/ft WTDC = air weight of drill collars, lb/ft MW = Mud weight, ppg. ADC = Cross sectional area of drill collars, in2 FTEN is plotted on the tension load graph as the tensile load line. The tensile strength values for different sizes, grades and inspection classes of drill pipes are contained in the API RP 7G, and can be calculated from the equation: Fyield = minimum tensile strength, lb Ym = specified minimum yield stress, psi A = cross section area, in2 Fyield is plotted as the minimum tensile strength line on the tension load graph. However, these values (Fyield) are theoretical values based on minimum areas, wall thickness and yield strength of the drill pipes. Therefore, these values only give an indication of the stress at which a certain total deformation would occur and not the specific point at which permanent deformation of the material begins. If a pipe is loaded to the minimum tensile strength calculated from equation 11, there is the possibility that some permanent stretch may occur, thereby making it difficult to keep the pipe straight in the wellbore. In order to eliminate the possibility of this occurrence, 90% of the minimum tensile strength as recommended by the API (American Petroleum Institute), should be used as the maximum allowable tensile load on the drill pipe, i.e Fdesign = maximum allowable tensile load 0.9 = a constant relating proportional limit to yield strength. Fdesign is plotted on the tension load graph as the maximum allowable tensile load line. As with the collapse load, a design factor would be applied to the tensile loads to account for dynamic loads in the drill pipe which occur when the slips are set, as well as prevent the occurrence of pipe parting close to the surface. The product of FTEN and the design factor is plotted as the tension design load line in the tension load graph see fig 3.6. Margin Of Overpull A margin for overpull is added to the tension load to ensure there is sufficient tensile strength in the drill pipe when it is pulled in the event of a stuck pipe. This margin is normally 50,000 100,000lb, but in deeper wells margins of overpull have reached 300,000lb. The value obtained after adding the margin of overpull is also plotted on the tension load graph see fig 3.6. The difference between the calculated tensile load at any point in the drillstring (FTEN) and the maximum allowable tension load would also represent the available overpull. This value represents available tensile strength of the drill pipe to withstand any extra forces applied to the drill string when trying to release it from a stuck pipe situation. FTEN and Fa can also be expressed as a safety factor This safety factor is an indication of how much the selected drill pipe will be able to withstand expected service loads. Due to uncertainty with actual service loads and conditions, a safety factor greater than 1 is always required. Slip Crush Slip crushing is generally not a problem if the slips are properly maintained. However, it is necessary to apply a safety factor for slip crushing when designing the drill string. This helps account for the hoop stress (SH) caused by the slips and the tensile stress (ST) caused by the weight of the drill string suspended in the slips. This relationship between SH and ST can be represented by the following equation SH = hoop stress, psi ST = tensile stress, psi D = outside diameter of the pipe, in. K = lateral load factor on slips, Ls = length of slips, in. = slip taper usually 9 ° 27 45 z = arctan ÃŽÂ ¼ ÃŽÂ ¼ = coefficient of friction, (approximately 0.08) The calculated tensile load is multiplied by the slip crush factor () to obtain the equivalent tensile load from slip crushing: Ts = tension from slip crushing, lb TL = tension load in drill string, lb SH / ST = slip crush factor. Ts is also plotted on the tension load graph as the slip crush design line. Fig 3.6: Sample Tension load graph The general step-by-step procedure for drill pipe selection using the graphical method is given as 1. Calculate the expected collapse load on drill pipe and apply the collapse design safety factor to derive the design load. Use the result to select weight and grade of drill pipe that satisfy collapse conditions. Plot expected collapse load and design load on a pressure vs. depth graph. 2. Calculate maximum allowable tensile load for the drill pipe selected in (1) above. Also calculate tension load on the drill string including buoyancy effects. Plot the tension load, specified minimum yield strength, and maximum allowable tensile load values on axial load vs. depth graph. 3. Apply tension design factor, margin of overpull, and slip crush factor to the calculated tension load and plot the individual results on the axial load vs. depth graph. Of the three factors applied to the tension load, the one resulting in the highest value is selected as the worst case for tensile loads. 4. Inspect graph and re-design any sections not meeting the load requirements. When designing a tapered drill string, the maximum length of a particular size, weight, grade and class of drill pipes that can be used to drill the selected hole section with specified WOB can be calculated as: All parameters remain as defined in equation 10 and 11. Note that equation 16 is only used when the MOP design line is the worst case scenario for tensile loads. When slip crushing is the worst case, the formula below is used SF = safety factor for slip crushing. The lightest available drill pipe grade should be used first in order to ensure that that the heavier grades are used upper section of the drill string where tensile loads are the highest. 3.2.4 Dog Leg Severity Fatigue damage is the most common type of drill pipe failure. It is known to be caused by cyclic bending loads induced in a drill pipe when it is rotated in the curved sections of the wellbore. The rotation of the drill pipe in the curved hole sections induce stresses in the outer wall of the drill pipe by stretching it and increasing its tensile loads. Fatigue damage from doglegs tends to occur when the angle exceeds a critical value. This critical value can be calculated as: C = maximum permissible dog leg severity, deg/100ft E = Youngs modulus, psi (30 x 106 for steel, 10.5 X 106 for aluminium) D = Drill pipe outer diameter, in. L = half the distance between tool joints, (180 in, for range 2 pipe) T = tension below the dogleg, lb à Ã†â€™b = maximum permissible bending stress, psi. I = drill pipe second moment of area, = à Ã†â€™b, is calculated from the buoyant tensile stress (à Ã†â€™t) and is dependent on the grade of the pipe. à Ã†â€™t = T/A, where T is defined in equation 19, and A is the cross sectional area of the pipe body in in2. For grade E pipe, The results from equation 20 are valid for à Ã†â€™t values up to 67,000psi. For grade S pipe, The results from equation 21 are valid for à Ã†â€™t values up to 133,400psi. It is recommended that an allowable dogleg severity (DLS) versus depth chart be plotted for every hole section with a particular drill string design since DLS changes with depth. The chart is plotted with the DLS on the x-axis and depth on the y-axis (see fig 3.7). When DLS lies to the left of the line or below the curve, the drill pipe is in safe operating conditions, and when it falls above or to the right of the curve, it is in unsafe conditions. Fig 3.7: Allowable Dogleg Severity Chart. (Mian, 1991) 3.2.5 Torsion Drill pipe torsional yield strength is important when planning deviated wells and ultra deep wells. In deviated wells, increased drag forces acting on the drill string from its interaction with the wellbore increase torsional loads on the drill pipe. In deeper wells, it is important in stuck pipe situations, in order to know the maximum torque that can be applied to the drill string. The pipe body torsional yield strength when subjected to torque alone can be calculated from the equation: Q = minimum torsional yield strength, ft lb J = polar second moment of area, à Ã¢â€š ¬/32 (D4 d4) D = pipe OD in, d = pipe ID in. Ym = minimum yield strength, psi. 3.2.6 Combined Loads On The Drill String Collapse and Tension The collapse resistance of the drill pipe is often reduced when the drill pipe is exposed to both tension and collapse loads. This happens because tensile loads stretch the drill pipe thereby affecting its D/t (diameter -wall thickness ratio) which controls the collapse resistance of the drill pipe. In ultra deep wells, the effect of combined collapse and tension is experienced when function testing the Blow out Preventers (BOP). It is becoming common practice in ultradeep drilling to equip BOPs with test rams in order to enable the BOP be tested without setting plugs in the well head. This is done to save tripping time due to extreme well depths. An example given by (Chatar, 2010), using 65/8in 27.70lb/ft drill pipe showed that with 65/8in drill pipe having 860kips of maximum allowable tensile loads, at half of this load, the drill string is only capable of withstanding 4,500psi collapse loads, which is often not sufficient for ultradeep drilling BOPs. The corrected collapse resistance of drill pipes under tension can be calculated using the formula Where R represents the percentage of the collapse resistance left when the drill pipe is under tension, therefore in equation 25, the value for R is used to multiply the normal plastic collapse resistance of the pipe to give the collapse resistance under tension. R can also be determined graphically with the following steps 1. Calculate Z using equation 24 2. Enter the ellipse for biaxial stress (fig 3.8) on the horizontal axis with the value for Z and draw a vertical line to the ellipse curve. 3. Draw a horizontal line from the vertical line drawn in (2) above to the vertical axis and read off the value. 4. Use the value from (5) above to multiply the collapse resistance to get the corrected collapse resistance with tension. Fig 3.8: Ellipse of Biaxial yield Strength: Effect of tensile loading om collapse resistance. (RGU Lecture notes: Casing design) Combined tension and torsion The torsional yield strength of a drill pipe is significantly reduced when the pipe is under tension loads. The torsional yield strength of the drill pipe under tension can be calculated with the equation Q = minimum torsional yield strength under tension, ft lb J = polar second moment of area. D = pipe OD in, d= pipe ID in. Ym = minimum yield strength, psi P = total load in tension, lb A = cross sectional area, in2 3.2.7 Tool Joint Performance The makeup torque to be applied to the tool joints when connecting drill pipes is calculated as follows ID = inside diameter, in. OD = outside diameter, in. Values for X, M, B and Q for standard connections are presented in the table below Type of Connection X