Kinematics analysis of data Essay

From the data we gathered on this experiment, the effects of the height of the track can greatly affect the acceleration of the cart. Base on the data on the table, the higher the height of the track will have higher acceleration and will lead to higher sinÃŽ ¸. From this, it implies that the higher the displacement of the track will lead to the higher acceleration of the cart. The reason why the cart will have higher acceleration to higher displacement is because of the continues gravitational pull to the cart without restriction to its track. Time and the inclination of the track are interrelated to each other. As for the higher the inclination of the track will lead to shorter time to takes the cart to goes down to the track. The time will become shorter because as for the higher the inclination of the track will also have higher acceleration which means the cart will become faster and that’s why it will takes shorter time to goes down to the track. The difference between the picket fence’s acceleration and the value of g is the value of the slope of a graph of average velocity versus time will be the acceleration due to gravity of the falling object. And also the value of g is the computed value for the free fall acceleration, while the picket fence’s acceleration is the value that gathered by manual experimentation for the free fall acceleration, that is also why the data on the g of table 2 and the data on table 3 have the similarities on the digits or values.

Self assessment for project Essay Example | Topics and Well Written Essays - 1000 words

Self assessment for project - Essay Example The aim of establishing a brand image style could be the first one of the sale strategies for all the companies. An effective product package design and brand image may enable consumers to create a sense of corporate identification with the company to then accept the product. This strategy has a dual impact at the sales point since it incorporates brand identity and packaging design which play important roles in corporate image and sales achievements. Companies want to achieve the best possible outcome out of their marketing initiatives. Marketing issues can be thoroughly discussed in several areas utilizing different methodologies and techniques such as investigation of research e.g. questionnaire, survey, literature review and interview with experts; " relationship between consumer preferences and purchasing behavior", "recognition of brand image", " demographic statistics" and " assessment of consumer purchasing factors", and how do these factors effect among package design, consumer recognition and purchasing preferences. The areas of R&D that will be covered in this proposal are the following: 5. -Using couple well known cigarette brands for in depth study, how consumers make decision on purchase; good recognition of certain brand, attractive visual output, price range, word of mouth or simply just good product" good taste, functionality". The purpose of this research is to integrate brand identity and package design, by using product from the western marketplaces of United States (US) and United Kingdom (UK) to investigate its characteristics and distinguishing features for discussion examples. Then the next step will be using the research results and solutions in order to apply them to the Russian or Asian marketplace. The research findings are expected to achieve future reinforcement and awaken Russian markets to further understand about brand image

Sex Disparities in the Use of IV Rt-PA Essay Example | Topics and Well Written Essays - 2500 words

Sex Disparities in the Use of IV Rt-PA - Essay Example For the women who are 50 years and above they are less likely to be admitted in the ICU as compared to men. For the women they have to wait for a long time in the emergency section than for the men it has always been believed that men are at more risk when suffering from cancer as compared to the men. A woman suffering from stroke is much different from a man with the same disease. The disease ranges from the symptoms to the treatment process (Gerarld, 2009). ii. Loss of balance and dizziness. When you’re experiencing all this and having trouble when walking one might end up coming to assumptions that it is the intoxication process but these might be one of the symptoms of stroke. v. Severe headaches. When one is suffering from stroke one is likely to experience severe headaches now and then. In a recent study it was noted that 600 patients were found to be experiencing headache women are likely to have headaches than the men. The researchers have indicated that the physicians treat the women who experience stroke in a less aggressive manner than the way they handle men. There are so many differences between thesymptoms of a stroke in a man and in a woman. The rt-PA method of treatment stands for Recombinant Tissue Plasminogen Activator which is an enzyme that has proteins and it helps so much in the breaking of the blood clots. It is a very common method of the treatment of stroke. The research that has been taken in New York it indicates that women have got around 30% lesser odds of getting the treatment using the rt-PA method of treatment. The research has also touched on other sectors and the findings are that women are less likely to receive Thrombolytic treatment in the New York. Thrombolytic treatment of cancer entails the dissolving of the blood clot. The reason why there is a challenge in the chances of women to get thrombolysis is that timeliness

The Original Milgram Experiment 1961 Essay Example | Topics and Well Written Essays - 250 words

The Original Milgram Experiment 1961 - Essay Example the subjects to any actual risk, except exposing them to a moral pain, which was temporary and in a way necessary to the very nature of the experiment. 3. Though the Burger’s study was conducted 50 years later and was in compliance with the prevalent ethical standards, still he found the obedience rates to be almost identical to what the Milgram found in 1961. This indeed points towards the existence of an essential instinct in the humans to be subservient to the commands of the authority figures, even when those commands tend to be contrary to their moral beliefs. The Burger’s results do open a new area for research in the sphere of human psychology. 4. I personally feel that the researchers also need to focus on the mindset of the subjects who refused to comply with the dictates of the experimenter. The Milgram study makes it essential to understand as to what stops certain people from adhering to the commands of the authority figures, if they are contrary to their moral beliefs. The conclusions drawn in this context could open up immense possibilities in the area of modern

Single-sex education Research Paper Example | Topics and Well Written Essays - 1750 words - 1

Single-sex education - Research Paper Example ts have the right to get a good education, the readers can identify the advantages and disadvantages of each system to develop the current education system. Single-sex or gender-separate education relates to education that involves members of the same sex attending the same classes. This may occur in elementary, secondary schools or even in higher education. This is in contrast to the more conventional coeducation style of education where students of both sexes attend the same classes and schools. This single-sex education has been used in so many countries where it is considered as an appropriate style from the view of religion, or cultural tradition. Also, it was a worldwide style of education before the nineteenth century (Wikipedia, n.d.). According to The New York Times magazine, the number of single-sex schools had increased to forty-nine in 2008. In 1995, this number was only two in the whole United States (Silva, 2008). Each student has the right to get better educated and the solution is to have a coeducation system which offers single-sex classrooms to approach the advantages of both. Title IX was the first law that seemed to support the learning of both boys and girls together. It stated that boys and girls should be educated equally and together. Nevertheless, in 2006, the Department of Education removed these boundaries that only supposed on single-sex education. Since then, single-sex schools and classes was split across the country(Stanberry, n.b.). The change to Title IX to allow single-sex education in public schooling provided more choices in the public schools. Parents from then on have variety of options in the public schools for their children’s education. For example, Prestige Academy was going to open in 2008 in Wilmington, America for boys’ only public charter school. This was an important step to help black and Latino boys that come from low-income, and scored lower than the average score in most of the school’s requested goals

PUBLIC HEALTH AND COMMUNITY NURSING Essay Example | Topics and Well Written Essays - 2250 words

PUBLIC HEALTH AND COMMUNITY NURSING - Essay Example Of concern specially is smoking among adolescents which can contribute to several health problems and birth defects in babies born to pregnant women who smoke. Thus, the community selected for critical analysis of health needs in this essay is adolescent smokers. The extent of problem and the impact and effectiveness of public health in the primary care setting with reference to this community will be discussed through review of suitable literature. The Community According to the 2009 statistics, 29 percent of pupils have tried smoking atleast once and the prevalence of smoking in young people was 6 percent. Though this proportion is the lowest since the time the survey began in 1982, it continues to be a significant problem for both health authorities and public. The prevalence of smoking between 11-15 years old has been estimated to be 6 percent. The prevalence is more among girls (7 percent) when compared to boys (5 percent). Another important finding of the survey is that the pre valence of smoking increases with age. At 11 years of age, the prevalence is 0.5 percent and at 15 years of age it is 15 percent. Ethnicity has an influence on the prevalence. It is more common in White pupils when compared to Black of Mixed ethnicity pupils. It is also more prevalent in pupils coming from lower socioeconomic strata (Smith et al, 2009). According to the Smoking, Drinking and Drug Use survey of 2006 (NHS, 2007), nine percent of pupils in England are regular smokers and a further 5 percent are occasional smokers. The survey defined regular smokers as those smoking atleast one cigarette per week and occasional smokers as those smoking less than one cigarette a week. Pupils who smoked regularly smoked an average of 6 cigarettes a day, approximately 43.5 cigarettes a week. 74 percent of the regular smokers smoked cigarettes from a packet and 6 percent smoked from rolled tobaccos. Girls were more likely to smoke from a packet (NHS, 2007). Regular smoking in this age group has been associated with drug abuse, alcohol intake and truancy and school exclusion. The dependence of smoking by children is mainly related to the time they spend as regular smoker. Those who have smoked for more than a year as regular smokers have reported that they find it difficult to not smoke each day. However, more than 50 percent opined that they knew the ill effects of smoking and thus would like to give up. Most pupils knew that smoking caused lung cancer. But two-thirds of them reported that they felt relaxed because of smoking. Thus, the immediate benefits of smoking outweighed the future potential hazards of smoking. According to the survey, majority of pupils were aware of the fact that their families had negative attitude towards smoking. One third of the pupils who smoked did so secretly and occasional smokers were more likely to be secret smokers. Also, households of pupils who smoked were more lenient that those who did not smoke (NHS, 2007). Since most adult smo kers begin smoking at young age, it is every important to ascertain and understand the causes of smoking in young children so that predictors of smoking can be evaluated and targeted for prevention. Several risk factors have been studied in this regard. According to the Liverpool Longitudinal Smoking Study (Smith et al, 2009), deprivation at both school and home was strongly associated with smoking among adolescents. The trial of smoking is influenced by several school-related environmental factors

Western philosophy Essay Example for Free

Western philosophy Essay Philosophy is the discipline concerned with questions of how one should live (ethics); what sorts of things exist and what are their essential natures (metaphysics); what counts as genuine knowledge (epistemology); and what are the correct principles of reasoning (logic). The word is of Ancient Greek origin (philosophia), meaning love of wisdom. Definition of philosophy: Every definition of philosophy is controversial. The field has historically expanded and changed depending upon what kinds of questions were interesting or relevant in a given era. It is generally agreed that philosophy is a method, rather than a set of claims, propositions, or theories. Its investigations are based upon rational thinking, striving to make no unexamined assumptions and no leaps based on faith or pure analogy. Different philosophers have had varied ideas about the nature of reason. There is also disagreement about the subject matter of philosophy. Some think that philosophy examines the process of inquiry itself. Others, that there are essentially philosophical propositions which it is the task of philosophy to answer. Although the word philosophy originates in Ancient Greece, many figures in the history of other cultures have addressed similar topics in similar ways. The philosophers of East and South Asia are discussed in Eastern philosophy, while the philosophers of North Africa and the Middle East, because of their strong interactions with Europe, are usually considered part of Western philosophy. Branches of philosophy: The point of philosophy is to start with something so simple as to seem not worth stating, and to end with something so paradoxical that no one will believe it. To give an exhaustive list of the main divisions of philosophy is difficult, because various topics have been studied by philosophers at various times. Ethics, metaphysics, epistemology, and logic are usually included. Other topics include politics, aesthetics, and religion. In addition, most academic subjects have a philosophy, for example the philosophy of science, the philosophy of mathematics, and the philosophy of history. Metaphysics was first studied systematically by Aristotle. He did not use that term; the term emerged because in later editions of Aristotles works the book on what is now called metaphysics came after Aristotles study of physics. He calls the subject first philosophy (or sometimes just wisdom), and says it is the subject that deals with first causes and the principles of things. The modern meaning of the term is any inquiry dealing with the ultimate nature of what exists. Epistemology is concerned with the nature and scope of knowledge, and whether knowledge is possible. Ethics, or moral philosophy, is concerned with questions of how agents ought to act. Platos early dialogues constitute a search for definitions of virtue. Metaethics is the study of whether ethical value judgments can be objective at all. Ethics can also be conducted within a religious context. Logic has two broad divisions: mathematical logic (formal symbolic logic) and what is now called philosophical logic, the logic of language. Greek philosophy and Hellenistic philosophy: Ancient Greek philosophy may be divided into the pre-Socratic period, the Socratic period, and the post-Aristotelian period (or Hellenistic period). The pre-Socratic period was characterized by metaphysical speculation, often preserved in the form of grand, sweeping statements, such as All is fire or All changes. Important pre-Socratic philosophers include Pythagoras, Thales, Anaximander, Anaximenes, Democritus, Parmenides, Heraclitus, and Empedocles. The Socratic period is named in honor of Socrates, who, along with his pupil Plato, revolutionized philosophy through the use of the Socratic method, which developed the very general philosophical methods of definition, analysis, and synthesis. While no writings of Socrates survive, his influence as a skeptic is transmitted through Platos works. Platos writings are often considered basic texts in philosophy as they defined the fundamental issues of philosophy for future generations. These issues and others were taken up by Aristotle, who studied at Platos school, the Academy, and who often disagreed with what Plato had written. The subsequent period ushered in such philosophers as Euclid, Epicurus, Chrysippus, Hipparchia the Cynic, Pyrrho, and Sextus Empiricus. Though many of these philosophers may seem irrelevant given current scientific knowledge, their systems of thought continue to influence both philosophy and science today. Medieval philosophy History: Medieval philosophy is the philosophy of Western Europe and the Middle East during what is now known as the medieval era or the Middle Ages, roughly extending from the fall of the Roman Empire to the Renaissance period. Medieval philosophy is defined partly by the rediscovery and further development of classical Greek philosophy and Hellenistic philosophy, and partly by the need to address theological problems and to integrate sacred doctrine (in Islam, Judaism and Christianity) and secular learning. Some problems discussed throughout this period are the relation of faith to reason, the existence and unity of God, the object of theology and metaphysics, the problems of knowledge, of universals, and of individuation. Philosophers from the Middle Ages include the Muslim philosophers Alkindus, Alfarabi, Alhacen, Avicenna, Algazel, Avempace, Abubacer and Averroes; the Jewish philosophers Maimonides and Gersonides; and the Christian philosophers Anselm, Peter Abelard, Roger Bacon, Thomas Aquinas, Duns Scotus, William of Ockham and Jean Buridan. Early modern philosophy History(c. 1600 c. 1800): Modern philosophy is usually considered to begin with the revival of skepticism and the genesis of modern physical science. Canonical figures include Montaigne, Descartes, Locke, Spinoza, Leibniz, Berkeley, Hume, and Kant. Chronologically, this era spans the 17th and 18th centuries, and is generally considered to end with Kants systematic attempt to reconcile Newtonian physics with traditional metaphysical topics. Later modern philosophy History(c. 1800 c. 1960): Later modern philosophy is usually considered to begin after the philosophy of Immanuel Kant at the beginning of the 19th-century. German idealists, Fichte, Hegel, Hoelderlin, Schelling, expanded on the work of Kant by maintaining that the world is rational and it is knowable as rational. Rejecting idealism, other philosophers, many working from outside the university, initiated lines of thought that would occupy academic philosophy in the early and mid-20th century: Contemporary philosophy History(c. 1960 present): In the last hundred years, philosophy has increasingly become an activity practiced within the modern research university, and accordingly it has grown more specialized and more distinct from the natural sciences. Much of philosophy in this period concerns itself with explaining the relation between the theories of the natural sciences and the ideas of the humanities or common sense. It is arguable that later modern philosophy ended with contemporary philosophys shift of focus from 19th century philosophers to 20th century philosophers. Realism and nominalism in Philosophy: Realism sometimes means the position opposed to the 18th-century Idealism, namely that some things have real existence outside the mind. Classically, however, realism is the doctrine that abstract entities corresponding to universal terms like man have a real existence. It is opposed to nominalism, the view that abstract or universal terms are words only, or denote mental states such as ideas, beliefs, or intentions. The latter position, famously held by William of Ockham, is conceptualism. Rationalism and empiricism in Philosophy: Rationalism is any view emphasizing the role or importance of human reason. Extreme rationalism tries to base all knowledge on reason alone. Rationalism typically starts from premises that cannot coherently be denied, then attempts by logical steps to deduce every possible object of knowledge. The first rationalist, in this broad sense, is often held to be Parmenides (fl. 480 BCE), who argued that it is impossible to doubt that thinking actually occurs. But thinking must have an object, therefore something beyond thinking really exists. Parmenides deduced that what really exists must have certain properties for example, that it cannot come into existence or cease to exist, that it is a coherent whole, that it remains the same eternally (in fact, exists altogether outside time). Zeno of Elea (born c. 489 BCE) was a disciple of Parmenides, and argued that motion is impossible, since the assertion that it exists implies a contradiction. Plato (427-347 BCE) was also influenced by Parmenides, but combined rationalism with a form of realism. The philosophers work is to consider being, and the essence of things. But the characteristic of essences is that they are universal. The nature of a man, a triangle, a tree, applies to all men, all triangles, all trees. Plato argued that these essences are mind-independent forms, that humans (but particularly philosophers) can come to know by reason, and by ignoring the distractions of sense-perception. Modern rationalism begins with Descartes. Reflection on the nature of perceptual experience, as well as scientific discoveries in physiology and optics, led Descartes (and also Locke) to the view that we are directly aware of ideas, rather than objects. This view gave rise to three questions: Is an idea a true copy of the real thing that it represents? Sensation is not a direct interaction between bodily objects and our sense, but is a physiological process involving representation (for example, an image on the retina). Locke thought that a secondary quality such as a sensation of green could in no way resemble the arrangement of particles in matter that go to produce this sensation, although he thought that primary qualities such as shape, size, number, were really in objects. How can physical objects such as chairs and tables, or even physiological processes in the brain, give rise to mental items such as ideas? This is part of what became known as the mind-body problem. If all the contents of awareness are ideas, how can we know that anything exists apart from ideas? Descartes tried to address the last problem by reason. He began, echoing Parmenides, with a principle that he thought could not coherently be denied: I think, therefore I am (often given in his original Latin: Cogito ergo sum). From this principle, Descartes went on to construct a complete system of knowledge (which involves proving the existence of God, using, among other means, a version of the ontological argument). His view that reason alone could yield substantial truths about reality strongly influenced those philosophers usually considered modern rationalists (such as Baruch Spinoza, Gottfried Leibniz, and Christian Wolff), while provoking criticism from other philosophers who have retrospectively come to be grouped together as empiricists. Empiricism, in contrast to rationalism, downplays or dismisses the ability of reason alone to yield knowledge of the world, preferring to base any knowledge we have on our senses. John Locke propounded the classic empiricist view in An Essay Concerning Human Understanding in 1689, developing a form of naturalism and empiricism on roughly scientific (and Newtonian) principles. During this era, religious ideas played a mixed role in the struggles that preoccupied secular philosophy. Bishop Berkeleys famous idealist refutation of key tenets of Isaac Newton is a case of an Enlightenment philosopher who drew substantially from religious ideas. Other influential religious thinkers of the time include Blaise Pascal, Joseph Butler, and Jonathan Edwards. Other major writers, such as Jean-Jacques Rousseau and Edmund Burke, took a rather different path. The restricted interests of many of the philosophers of the time foreshadow the separation and specialization of different areas of philosophy that would occur in the 20th century. Skepticism in Philosophy: Skepticism is a philosophical attitude that questions the possibility of obtaining any sort of knowledge. It was first articulated by Pyrrho, who believed that everything could be doubted except appearances. Sextus Empiricus (2nd century CE) describes skepticism as an ability to place in antithesis, in any manner whatever, appearances and judgments, and thus to come first of all to a suspension of judgment and then to mental tranquility. Skepticism so conceived is not merely the use of doubt, but is the use of doubt for a particular end: a calmness of the soul, or ataraxia. Skepticism poses itself as a challenge to dogmatism, whose adherents think they have found the truth. Sextus noted that the reliability of perception may be questioned, because it is idiosyncratic to the perceiver. The appearance of individual things changes depending on whether they are in a group: for example, the shavings of a goats horn are white when taken alone, yet the intact horn is black. A pencil, when viewed lengthwise, looks like a stick; but when examined at the tip, it looks merely like a circle. Skepticism was revived in the early modern period by Michel de Montaigne and Blaise Pascal. Its most extreme exponent, however, was David Hume. Hume argued that there are only two kinds of reasoning: what he called probable and demonstrative (cf Humes fork). Neither of these two forms of reasoning can lead us to a reasonable belief in the continued existence of an external world. Demonstrative reasoning cannot do this, because demonstration (that is, deductive reasoning from well-founded premises) alone cannot establish the uniformity of nature (as captured by scientific laws and principles, for example). Such reason alone cannot establish that the future will resemble the past. We have certain beliefs about the world (that the sun will rise tomorrow, for example), but these beliefs are the product of habit and custom, and do not depend on any sort of logical inferences from what is already given certain. But probable reasoning (inductive reasoning), which aims to take us from the observed to the unobserved, cannot do this either: it also depends on the uniformity of nature, and this supposed uniformity cannot be proved, without circularity, by any appeal to uniformity. The best that either sort of reasoning can accomplish is conditional truth: if certain assumptions are true, then certain conclusions follow. So nothing about the world can be established with certainty. Hume concludes that there is no solution to the skeptical argument except, in effect, to ignore it. Even if these matters were resolved in every case, we would have in turn to justify our standard of justification, leading to an infinite regress (hence the term regress skepticism). Many philosophers have questioned the value of such skeptical arguments. The question of whether we can achieve knowledge of the external world is based on how high a standard we set for the justification of such knowledge. If our standard is absolute certainty, then we cannot progress beyond the existence of mental sensations. We cannot even deduce the existence of a coherent or continuing I that experiences these sensations, much less the existence of an external world. On the other hand, if our standard is too low, then we admit follies and illusions into our body of knowledge. This argument against absolute skepticism asserts that the practical philosopher must move beyond solipsism, and accept a standard for knowledge that is high but not absolute. Idealism in Philosophy: Idealism is the epistemological doctrine that nothing can be directly known outside of the minds of thinking beings. Or in an alternative stronger form, it is the metaphysical doctrine that nothing exists apart from minds and the contents of minds. In modern Western philosophy, the epistemological doctrine begins as a core tenet of Descartes that what is in the mind is known more reliably than what is known through the senses. The first prominent modern Western idealist in the metaphysical sense was George Berkeley. Berkeley argued that there is no deep distinction between mental states, such as feeling pain, and the ideas about so-called external things, that appear to us through the senses. There is no real distinction, in this view, between certain sensations of heat and light that we experience, which lead us to believe in the external existence of a fire, and the fire itself. Those sensations are all there is to fire. Berkeley expressed this with the Latin formula esse est percipi: to be is to be perceived. In this view the opinion, strangely prevailing upon men, that houses, mountains, and rivers have an existence independent of their perception by a thinking being is false. Forms of idealism were prevalent in philosophy from the 18th century to the early 20th century. Transcendental idealism, advocated by Immanuel Kant, is the view that there are limits on what can be understood, since there is much that cannot be brought under the conditions of objective judgment. Kant wrote his Critique of Pure Reason (1781-1787) in an attempt to reconcile the conflicting approaches of rationalism and empiricism, and to establish a new groundwork for studying metaphysics. Kants intention with this work was to look at what we know and then consider what must be true about it, as a logical consequence of, the way we know it. One major theme was that there are fundamental features of reality that escape our direct knowledge because of the natural limits of the human faculties. Although Kant held that objective knowledge of the world required the mind to impose a conceptual or categorical framework on the stream of pure sensory data a framework including space and time themselves he maintained that things-in-themselves existed independently of  our perceptions and judgments; he was therefore not an idealist in any simple sense. Indeed, Kants account of things-in-themselves is both controversial and highly complex. Continuing his work, Johann Gottlieb Fichte and Friedrich Schelling dispensed with belief in the independent existence of the world, and created a thoroughgoing idealist philosophy. The most notable work of this German idealism was G. W. F. Hegels Phenomenology of Spirit, of 1807. Hegel admitted his ideas werent new, but that all the previous philosophies had been incomplete. His goal was to correctly finish their job. Hegel asserts that the twin aims of philosophy are to account for the contradictions apparent in human experience (which arise, for instance, out of the supposed contradictions between being and not being ), and also simultaneously to resolve and preserve these contradictions by showing their compatibility at a higher level of examination (being and not being are resolved with becoming) . This program of acceptance and reconciliation of contradictions is known as the Hegelian dialectic. Philosophers in the Hegelian tradition include Ludwig Andreas Feuerbach, who coined the term projection as pertaining to our inability to recognize anything in the external world without projecting qualities of ourselves upon those things, Karl Marx, Friedrich Engels, and the British idealists, notably T. H. Green, J. M. E. McTaggart, and F. H. Bradley. Few 20th century philosophers have embraced idealism. However, quite a few have embraced Hegelian dialectic. Immanuel Kants Copernican Turn also remains an important philosophical concept today. Pragmatism in Philosophy: Pragmatism was founded in the spirit of finding a scientific concept of truth, which is not dependent on either personal insight (or revelation) or reference to some metaphysical realm. The truth of a statement should be judged by the effect it has on our actions and truth should be seen as that which the whole of scientific enquiry will ultimately agree on. This should probably be seen as a guiding principle more than a definition of what it means for something to be true, though the details of how this principle should be interpreted have been subject to discussion since Peirce first conceived it. Like Rorty many seem convinced that Pragmatism holds that the truth of beliefs does not consist in their correspondence with reality, but in their usefulness and efficacy. The late 19th-century American philosophers Charles Peirce and William James were its co-founders, and it was later developed by John Dewey as instrumentalism. Since the usefulness of any belief at any time might be contingent on circumstance, Peirce and James conceptualised final truth as that which would be established only by the future, final settlement of all opinion. Critics have accused pragmatism of falling victim to a simple fallacy: because something that is true proves useful, that usefulness is the basis for its truth. Thinkers in the pragmatist tradition have included John Dewey, George Santayana,W. V. O. Quine and C. I. Lewis. Phenomenology in Philosophy: Edmund Husserls phenomenology was an ambitious attempt to lay the foundations for an account of the structure of conscious experience in general. An important part of Husserls phenomenological project was to show that all conscious acts are directed at or about objective content, a feature that Husserl called intentionality. In the first part of his two-volume work, the Logical Investigations (1901), he launched an extended attack on psychologism. In the second part, he began to develop the technique of descriptive phenomenology, with the aim of showing how objective judgments are indeed grounded in conscious experience not, however, in the first-person experience of particular individuals, but in the properties essential to any experiences of the kind in question. He also attempted to identify the essential properties of any act of meaning. He developed the method further in Ideas (1913) as transcendental phenomenology, proposing to ground actual experience, and thus all fields of human knowledge, in the structure of consciousness of an ideal, or transcendental, ego. Later, he attempted to reconcile his transcendental standpoint with an acknowledgement of the intersubjective life-world in which real individual subjects interact. Husserl published only a few works in his lifetime, which treat phenomenology mainly in abstract methodological terms; but he left an enormous quantity of unpublished concrete analyses. Husserls work was immediately influential in Germany, with the foundation of phenomenological schools in Munich and Gottingen. Phenomenology later achieved international fame through the work of such philosophers as Martin Heidegger (formerly Husserls research assistant), Maurice Merleau-Ponty, and Jean-Paul Sartre. Indeed, through the work of Heidegger and Sartre, Husserls focus on subjective experience influenced aspects of existentialism. Existentialism in Philosophy: Although they didnt use the term, the nineteenth century philosophers Soren Kierkegaard and Friedrich Nietzsche are widely regarded as the fathers of existentialism. Their influence, however, has extended beyond existentialist thought. The main target of Kierkegaards writings was the idealist philosophical system of Hegel which, he thought, ignored or excluded the inner subjective life of living human beings. Kierkegaard, conversely, held that truth is subjectivity, arguing that what is most important to an actual human being are questions dealing with an individuals inner relationship to existence. In particular, Kierkegaard, a Christian, believed that the truth of religious faith was a subjective question, and one to be wrestled with passionately. Although Kierkegaard and Nietzsche were among his influences, the extent to which the German philosopher Martin Heidegger should be considered an existentialist is debatable. In Being and Time he presented a method of rooting philosophical explanations in human existence (Dasein) to be analysed in terms of existential categories (existentiale); and this has led many commentators to treat him as an important figure in the existentialist movement. However, in The Letter on Humanism, Heidegger explicitly rejected the existentialism of Jean-Paul Sartre. Sartre became the best-known proponent of existentialism, exploring it not only in theoretical works such as Being and Nothingness , but also in plays and novels. Sartre, along with Albert Camus and Simone de Beauvoir, all represented an avowedly atheistic branch of existentialism, which is now more closely associated with their ideas of nausea, contingency, bad faith, and the absurd than with Kierkegaards spiritual angst. Nevertheless, the focus on the individual human being, responsible before the universe for the authenticity of his or her existence, is common to all these thinkers. Structuralism and post-structuralism in Philosophy: Inaugurated by the linguist Ferdinand de Saussure, structuralism sought to ferret out the underlying systems through analysing the discourses they both limit and make possible. Saussure conceived of the sign as being delimited by all the other signs in the system, and ideas as being incapable of existence prior to linguistic structure, which articulates thought. This led continental thought away from humanism, and toward what was termed the decentering of man: language is no longer spoken by man to express a true inner self, but language speaks man. Structuralism sought the province of a hard science, but its positivism soon came under fire by poststructuralism, a wide field of thinkers, some of whom were once themselves structuralists, but later came to criticize it. Structuralists believed they could analyse systems from an external, objective standing, for example, but the poststructuralists argued that this is incorrect, that one cannot transcend structures and thus analysis is itself determined by what it examines, that systems are ultimately self-referential. Furthermore, while the distinction between the signifier and signified was treated as crystalline by structuralists, poststructuralists asserted that every attempt to grasp the signified would simply result in the proliferation of more signifiers, so meaning is always in a state of being deferred, making an ultimate interpretation impossible. Structuralism came to dominate continental philosophy from the 1960s onward, encompassing thinkers as diverse as Michel Foucault and Jacques Lacan. The analytic tradition in Philosophy: The term analytic philosophy roughly designates a group of philosophical methods that stress clarity of meaning above all other criteria. The philosophy developed as a critique of Hegel and his followers in particular, and of speculative philosophy in general. Some schools in the group include 20th-century realism, logical atomism, logical positivism, and ordinary language. The motivation is to have philosophical studies go beyond personal opinion and begin to have the cogency of mathematical proofs. In 1921, Ludwig Wittgenstein published his Tractatus Logico-Philosophicus, which gave a rigidly logical account of linguistic and philosophical issues. At the time, he understood most of the problems of philosophy as mere puzzles of language, which could be solved by clear thought. Years later he would reverse a number of the positions he had set out in the Tractatus, in for example his second major work, Philosophical Investigations (1953). Investigations encouraged the development of ordinary language philosophy, which was promoted by Gilbert Ryle, J.L. Austin, and a few others. The ordinary language philosophy thinkers shared a common outlook with many older philosophers (Jeremy Bentham, Ralph Waldo Emerson, and John Stuart Mill), and it was this style of philosophical inquiry that characterized English-language philosophy for the second half of the 20th century. Ethics and political in Philosophy: From ancient times, and well beyond them, the roots of justification for political authority were inescapably tied to outlooks on human nature. In The Republic, Plato declared that the ideal society would be run by a council of philosopher-kings, since those best at philosophy are best able to realize the good. Even Plato, however, required philosophers to make their way in the world for many years before beginning their rule at the age of fifty. For Aristotle, humans are political animals (i. e. social animals), and governments are set up in order to pursue good for the community. Aristotle reasoned that, since the state (polis) was the highest form of community, it has the purpose of pursuing the highest good. Aristotle viewed political power as the result of natural inequalities in skill and virtue. Because of these differences, he favored an aristocracy of the able and virtuous. For Aristotle, the person cannot be complete unless he or she lives in a community. His The Nicomachean Ethics and The Politics are meant to be read in that order. The first book addresses virtues (or excellences) in the person as a citizen; the second addresses the proper form of government to ensure that citizens will be virtuous, and therefore complete. Both books deal with the essential role of justice in civic life. Nicolas of Cusa rekindled Platonic thought in the early 15th century. He promoted democracy in Medieval Europe, both in his writings and in his organization of the Council of Florence. Unlike Aristotle and the Hobbesian tradition to follow, Cusa saw human beings as equal and divine (that is, made in Gods image), so democracy would be the only just form of government. Cusas views are credited by some as sparking the Italian Renaissance, which gave rise to the notion of Nation-States. Later, Niccolo Machiavelli rejected the views of Aristotle and Thomas Aquinas as unrealistic. The ideal sovereign is not the embodiment of the moral virtues; rather the sovereign does whatever is successful and necessary, rather than what is morally praiseworthy. Thomas Hobbes also contested many elements of Aristotles views. For Hobbes, human nature is essentially anti-social: people are essentially egoistic, and this egoism makes life difficult in the natural state of things. Moreover, Hobbes argued, though people may have natural inequalities, these are trivial, since no particular talents or virtues that people may have will make them safe from harm inflicted by others. For these reasons, Hobbes concluded that the state arises from a common agreement to raise the community out of the state of nature. This can only be done by the establishment of a sovereign, in which (or whom) is vested complete control over the community, and which is able to inspire awe and terror in its subjects. Many in the Enlightenment were unsatisfied with existing doctrines in political philosophy, which seemed to marginalize or neglect the possibility of a democratic state. David Hume was among the first philosophers to question the existence of God, circa 1700. Jean-Jacques Rousseau was among those who attempted to overturn these doctrines: he responded to Hobbes by claiming that a human is by nature a kind of noble savage, and that society and social contracts corrupt this nature. Another critic was John Locke. In Second Treatise on Government he agreed with Hobbes that the nation-state was an efficient tool for raising humanity out of a deplorable state, but he argued that the sovereign might become an abominable institution compared to the relatively benign unmodulated state of nature. Following the doctrine of the fact-value distinction, due in part to the influence of David Hume and his student Adam Smith, appeals to human nature for political justification were weakened. Nevertheless, many political philosophers, especially moral realists, still make use of some essential human nature as a basis for their arguments. Consequentialism, Deontological ethics, and Virtue ethics in Philosophy: One debate that has commanded the attention of ethicists in the modern era has been between consequentialism (actions are to be morally evaluated solely by their consequences) and deontology (actions are to be morally evaluated solely by consideration of agents duties, the rights of those whom the action concerns, or both).