WEEK 1 QUIZ 1 Essay Example for Free

WEEK 1 QUIZ 1 Essay 1.Question : Liberalism rests in a conception of equality whereby the government Student Answer: must not choose one person’s good over another. must ensure that we all have the same possessions. must provide everybody with healthcare. must redistribute wealth in order to achieve fairness. Instructor Explanation: The answer can be found in the section â€Å"What Does Liberalism Mean in Practice?† Points Received: 1 of 1 Comments: Question 2.Question : American politics are rooted in Student Answer: the practice of negative liberty. redistributing wealth from the rich to the poor. competing interpretations of core American values. a need to avoid all conflict. Instructor Explanation: The answer can be found in the section â€Å"American Politics are Rooted in Core American Values.† Points Received: 1 of 1 Comments: Question 3.Question : Jefferson justified American separation from Britain in the Declaration of Independence based on Student Answer: the majority of Americans who voted for it. the lack of American freedom under British rule. the Lockean idea of the right of the people to overthrow a government that fails to fulfill its obligations. the overtaxation of Americans by the Crown. Instructor Explanation: The answer can be found in the section â€Å"Locke’s Influence on Jefferson.† Points Received: 0 of 1 Comments: Question 4.Question : Modern liberalism differs from classical liberalism because modern liberalism Student Answer: is associated with big government and large social programs. does not respect human agency as does classical liberalism. allows for arbitrary exercise of power and authority. does not respect property rights. Instructor Explanation:The answer can be found in the section â€Å"How Does Contemporary Liberalism Compare with Classical Liberalism?† Points Received: 1 of 1 Comments: Question 5.Question : Samuel P. Huntington defined â€Å"creedal passion periods† as periods when Americans Student Answer: demand redistribution. seek to find new values. return to first principles. demand smaller government. Instructor Explanation:The answer can be found in the section â€Å"The Importance of Constitutional Debates.† Points Received: 1 of 1 Comments: Question 6.Question : Colonists enjoyed rights under which documents following the Glorious Revolution of 1688? Student Answer: British Bill of Rights and Toleration Act Magna Carta and the Mayflower Compact Hobbes’s Leviathan and the Magna Carta John Locke’s Second Treatise of Government and the Toleration Act Instructor Explanation:  The answer can be found in the section â€Å"Colonial Assemblies.† Points Received: 1 of 1 Comments: Question 7.Question : Impeachment can be characterized as a Student Answer: sole responsibility of the Senate. shared function between the Senate and the Supreme Court. shared function between the House of Representative and the Senate. sole responsibility of the House of Representatives. Instructor Explanation:The answer can be found in the section â€Å"The Executive.† Points Received: 1 of 1 Comments: Question 8.Question : The Annapolis Convention was called to address Student Answer: the lack of authority to raise armies. the lack of authority to impose uniform commercial regulations among the states. the inability of the Continental Congress to pay revolutionary war veterans. the possibility of holding a convention in secret. Instructor Explanation: The answer can be found in the section â€Å"Annapolis Convention.† Points Received: 1 of 1 Comments: Question 9.Question : The Federalists argued that a Bill of Rights was not necessary because Student Answer: all basic protections were contained in the Constitution. the anti-Federalists were being irrational. it impedes the authority of the government. it would take too long to ratify. Instructor Explanation:The answer can be found in the section â€Å"Federalists Versus Anti-Federalists.† Points Received: 1 of 1 Comments: Question 10.Question : The purpose of the Constitutional Convention was to Student Answer: create a new form of government. revise the Articles of Confederation. annul the Articles of Confederation. create a strong central government. Instructor Explanation:The answer can be found in the section â€Å"The Constitutional Convention† Points Received: 1 of 1 Comments:

Bhopal Ethics Essay Example for Free

Bhopal Ethics Essay The Bhopal gas leak was a terrible tragedy in which thousands of helpless civilians were killed and hundreds of thousands were injured as they slept. Determining who was at fault and, consequently, who should compensate the victims and clean up the site are questions that have plagued the affected parties, my Rotman classmates and the world at large for over 25 years. The analysis to follow, in attempting to present the roles and responsibilities of each major player, will demonstrate the incredible difficulty involved in assigning conclusive responsibility for the tragedy. This will be followed by my personal reflections on the incident in which I present an additional culprit to those discussed in class. Union Carbide Corporation (US): In seeking to assign responsibility for the incident, there are two clear opportunities to point the finger at Union Carbide Corporation. Firstly, pressure from the corporate office to stop losses backed Union Carbide India into a corner that led to the cost-cutting proposal that ultimately produced the disaster. If, as Milton Friedman said, the social responsibility of a business is to increase profits, then Union Carbide Corporation is under a purely fiduciary, and not a moral or ethical, responsibility to the company’s shareholders and their decision to approve the cost-cutting plan seems appropriate. Friedman’s view, however, is far from universally accepted. Many believe that corporations’ responsibilities to their shareholders, employees, customers and communities extend past fiduciary and enter the realms of ethics and CSR. These people will lay blame for the incident at Union Carbide Corporation for putting profits before people. A second criticism often leveled at Union Carbide Corporation is the fact that their inspectors had visited the Bhopal plant a year before the incident and noted sixty-one safety issues. A grand total of zero of these recommendations had been implemented by the time of the incident. While responsibility for implementation certainly rests with Union Carbide India, the parent company cannot escape blameless as they bear responsibility for following up and ensuring their plants are meeting their own safety guidance. This negligence led to disaster. Union Carbide India Limited: The Indian subsidiary of Union Carbide’s level of responsibility for the Bhopal tragedy is also difficult to determine. It clearly bears responsibility for non-functioning safety and emergency equipment that greatly exacerbated the scope of the tragedy. It is simply unacceptable that the cooling unit had been disabled for over one year. Union Carbide India also failed its responsibilities by hiring under-qualified and illiterate employees, and then failing to train them appropriately. These employees did not understand the dangers and worked in a world where minor leaks were commonplace and corroded instruments could not be trusted. As well, the subsidiary surely deserves blame for not correcting any of the safety violations identified before the incident. Defendants of the Indian subsidiary, however, will remind their critics that cutting these corners were required to keep their plant open and preserve their jobs and important pesticides. Without pressure from their US parent to eliminate losses, they argue, such drastic measures would not have been necessary. Here again we see how easily complications arise when attempting to assign responsibility for ethical lapses. Government of India: The government of India was the strongest proponent in bringing a Union Carbide plant to Bhopal as the prospect of jobs and much needed pesticides led to an offer Union Carbide could not refuse: cheap labour, tax breaks, few workplace safety restrictions and a guaranteed market for 100% of their output. The Government of India, in addition to economic growth, also bears responsibility for the safety and well-being of its citizens; here, they failed to live up to their full mandate. Firstly, the decision to favour economic growth over safety was questionable ethically and ended up costing them dearly. Secondly, the Government neglected the densely-populated shanty town that had grown up near the plant on land deeded from local officials. Its residents were the first and main victims of the poisonous gas. Still, many will argue that a cost-benefit analysis made creating jobs and accessible pesticide for a poor and hungry region the proper priority. While many were ultimately harmed by the leak, how many more had benefitted from the poverty-alleviating jobs and hunger-alleviating crops? Here again we find valid points and counter-points, leaving us no closer to assigning conclusive blame and responsibility for the tragedy. Dow Chemical: While Dow certainly protected itself in the purchase agreement from a legal standpoint, there are those that suggest the proper ethical action is for Dow to assume responsibility for any outstanding clean up and compensation. While this may innately feel like the right thing to do, the counterpoint that Dow had nothing to do with the incident and should not be punished after paying fair market value for Union Carbide is also valid. Personal Reflection: Analyzing the conduct of the major parties has not produced any conclusive allocation of responsibility. It is clear that each party deserves significant blame but no party deserves total blame. There is, however, an overlooked culprit that I believe deserves the bulk of the blame: the expectations market that has hijacked the decision making of US corporations(1). Ever-increasing emphasis on the expectations market (stock prices) instead of the real market (products/services, relationships with customers and communities) has left businesses making short-term, profit-chasing decisions at the expense of their reputation, ethics and long-term viability. Approving cost cuts that jeopardized safety in Bhopal is just one of all too many such instances. This juxtaposition of ethics vs. eeting financial expectations, however, is fatally flawed – there are many examples where ethical decisions produce long term financial success (Tylenol and Maple Leaf Foods recalls, for example). Queens University took the ethical route vis a vis the Radler donation and the class poll revealed that only a very small percentage of us had heard of that incident. I believe that if Queens had ta ken the easier, unethical decision and never offered to return the donation, this story would have been much more widely publicized and Queens would have suffered in the long run. Moreover, there is no shortage of examples where short-term unethical decisions destroy companies and make them miss their projections forever! (Enron, Bre-X, Nortel, etc – sadly this is a very long list indeed). In short, I disagree with Friedman and lay the bulk of Bhopal blame at the financial system in which Union Carbide operated. Fear of getting hammered by the expectations market led to corporate’s threat to close the Bhopal plant which set off the chain reaction that ultimately ended in tragedy. Fear of incurring further losses after the tragedy than focused Union Carbide’s efforts on avoiding liability, rather than taking the ethical high-ground and assuming fair responsibility for compensation and clean up. Corporate promotion of hypernorms such as integrity, compassion and responsibility will ultimately benefit all stakeholders and provide corporations with the enduring financial rewards that accrue to those that are respected and well-liked by the real market (ie. onsumers and communities, not analysts and speculators). We need to usher in a new era where businesses chase solid reputations and community longevity instead of quarterly earnings expectations. The default corporate reaction to adversity must shift towards upholding these hypernorms, rather than hiding behind lawyers and waiting until the blame has been transferred elsewhere. Realizing that employing the ethical strategy does not compromise, but actually enhances long term financial viability is a cruc ial first step.

Causes and Effects of Gravity

Causes and Effects of Gravity Ahmed Emad Hassab Elnabi Gravitational Force â€Å"’You may hate gravity, but gravity doesnt care.’ Clayton Christensen†. This Harvard teacher was directing this quotation to students like me because it is a force that cannot be viewed. Gravity is a field force exerted by an object to attract another object towards its center. In a simplified manner, it is an intangible, non-contact force that cannot be seen, but is existent between all objects. Gravitational force in a mathematical perspective is the mass of an object multiplied by gravitational acceleration. It is one of the fundamental forces of the universe that maintains planets, solar systems and galaxies. In the last couple of centuries, gravity became understood through Galileo, Brahe, Kepler, Newton and Einstein. Before the last 300 years, some only superficially understood gravity and others neglected the concept of having a field. In ancient times, civilizations believed that the skies and systems were held by divine power. Over they years, loads of scientists and philosophers tried to explain such a ‘magical’ phenomenon. In 1610, Galileo created a modern telescope. He used it to observe different planets’ behaviors. He focused on Earth and Venus; consequently he realized that they both revolve around the sun in a similar pattern. Therefore, he concluded that there’s a force that causes this spectacle. In the same time existed Kepler and Brahe. Kepler used Brahe’s astronomical data to conclude that planets revolve around the sun in an elliptical motion and that Earth has the same orbits around the sun; thus, he discovered that gravity creates seasons. Then, came the father of physics and creator of laws of motion, Isaac Newton. He was one of the first to ex plain the theory of mutual interaction, through his law of Universal Gravitation. It states that any and every two bodies in the universe attract each other with a force directly proportional to their masses and inversely proportion to the square of the distance between them. Thus objects like Newton’s apple is pulled to the earth and vice versa; the earth and planets are pulled towards the sun and vice versa. Finally, Albert Einstein, who is the most renounced genius, proposed a new theory. He said that gravity is the result of space and time being bent, general theory of relativity. He also theorized that enormous masses alter space and time because they deflect light, thus creating gravity. Skeptics denounced his theory, but time proved this theory right when astronauts went to space and found out that a clock is quicker away from earth. There are many misconceptions about gravity because there are many different explanations to it. First, people think that gravitational force doesn’t exist between humans, but it does exist between every object in the universe. However, the gravitational pull by earth is much stronger than the force exerted by humans because of its huge mass. Second, some thinks that gravity occurs through a mixture of gases, the air. However, gravity occurs between planets and suns, where there is no air, vacuum. Third some think that gravitational acceleration (a=f/m) in free-fall decreases because of the force of gravity of other objects. However, air pressure causes this occurrence but gravitational acceleration is constant at 9.81 m/s. Fourth, people claim that we are supposed to be pulled to mars or the moon also. On the other hand, they don’t take into consideration the factor of distance and that earth is we are too far from the moon or mars. Fifth, some say that there is no gra vitational force between Pluto and Earth. This is not true because gravitational force exists between all the objects in the universe. No matter how minute it can be, it is never zero. Sixth, a person might claim that his mass changes on the moon, but mass is constant; it is weight that changes depending on the gravitational pull. Seventh, one would think that we must be pulled to the Earth’s core since that is stated in Newton’s law of universal gravity. However, Newton also said in his third law that the Earth’s floor has an equal and opposing force to the gravitational force. Finally, one could claim that there is no gravitational force exerted on bacteria since they float. This statement is false because its mass is insignificant, gravitational force exerted by Earth on them is very small that it seemingly doesn’t affect them. Gravity has a very strange nature since Isaac Newton and Albert Einstien explained it in different ways. They both agreed on some fundamentals. First of all, Gravity is a field force because it is a contact force that occurs without objects physically touching. For example, the Earth pulls a ball towards the ground without touching it. Moreover, they both agreed that gravity is of extreme importance, in which it holds planets in solar systems and solar systems in galaxies. Isaac Newton theorized that gravity is the tendency of an object to be pulled towards the center of another object. Newton proposed the equation that the force of gravity equates to the mass of an object multiplied by the gravitational acceleration. On the other hand, Albert Einstein explained gravity as the bend in space and time created by a huge mass, so other objects that come near, fall in the dip or orbit in one of the levels of the dip. He proposed the equation of the gravitational force equates to the gravi tational constant multiplied by mass of object one times the mass of object two, all divided by the square of the radius. One other point that all scientists that understood gravity agreed on is that the range of gravity is infinite. There are many misconceptions about its range because the thought of infinite is tough for all humans. However, there is a force of gravity between any two masses. For example gravity exists on an atomic level and on a intergalactic level. There is an infinite amount of uses of gravity. On Earth, it keeps humans, animals and plants in the atmosphere stuck to the Earth’s surface. Also, gravity plays an important role in maintaining our spine’s shape because its God given strength is just right to neither make the spine neither rough nor soft. Furthermore, gravity keeps the Earth at a certain distance form the sun, so we would have suitable weather conditions to survive. Also, it pulls rain and flowing water downwards for us to drink water. Finally, it has a huge effect on the macro-organisms. Gravity keeps moons around their planets, planets around their stars; it keeps all systems in their galaxies and keeps galaxies in their clusters. Therefore, we have passed through many stages to understand such a strange phenomenon. Many scientists and thinkers had their say like Newton and Einstein. They proposed different theories but all had the same fundamental, which is that gravity observed everywhere we look; it can be clearly seen on a macro-level, but it is existent between everything in the universe. Finally, there are many applications and misconceptions of gravity because of its unbounded nature. As Albert Einstein once said, â€Å"Learn from yesterday, live for today, hope for tomorrow. The important thing is not to stop questioning.† This is the scientist’s code, which explains the constant advancements in science, chemistry and physics, and it will infinitely continue as people continue trying to ask the right questions. Works cited Chapter 5. Cohen Physics 131. N.p.: Cohen, n.d. N. pag. Print. http://www.esu.edu/physics/cohen/phys131/textbook/cohen_ch5.pdf> Gravitational Force. Gravitational Force. PHY, n.d. Web. 19 Nov.2013. http://www.phy.syr.edu/courses/tutorials/FreeBody/Gravity/Gravitational.Force.html>. History of Gravity. History of Gravity. WISC, n.d. Web. 19 Nov. 2013. http://www.physics.wisc.edu/museum/Exhibits-1/Mechanics/GravPit/index_HistGrav-2.html>. Thompson, Hobbie, and Sarah Havern. Gravity. Gravity. Stanford, n.d. Web. 18 Nov. 2013. http://www.stanford

Pathophysiology of breast cancer

Pathophysiology of breast cancer Cancer is a process in which normal cells go through stages that eventually change them to abnormal cells that multiply out of control. Breast cancer is a malignant growth that begins in the tissue of breast. It is most common cancer in women, but it can also appear in men. As per the W.H.O. survey 5, 19,000 deaths happen around the world per year. In 2008, Breast cancer incidence was estimated that 1.38 million folks suffered with breast cancer throughout the world. In 2008, it was estimated that nearly 3, 32,000 in Europe and 1,82,460 in US were registered with new cases. The incidence of breast cancer in India is on the rise and is rapidly becoming the number one cancer in females. One in twenty two women in India is likely to suffer from breast cancer during their lifetime, but this figure is more in developed countries like America and UK (one in eight being victim). In 2005, International Association of Cancer Research survey showed that there will be 2,50,000 of breast cancer patients that will be seen in India by 2015, A net 3% increase per year (80 new cases per 1,00,000 population per year). PATHOPHYSIOLOGY OF BREAST CANCER: Breast cancers arise from a sequence that begins with an increase in the number of breast cells to the emergence of atypical breast cells followed by carcinoma in situ and finally invasive cancer. Breast cancer occurs due to interaction between the environment and a defective gene. When cells became cancerous they lost ability to stop dividing, to attach to other cells and to stay where they belong. Some mutations can cause cancer such as p-53, BRCA1 and BRCA2. These mutations are either inherited or acquired after birth. Other mutations also cause breast cancer which is deterring the P13K/AKT pathway; these are helpful in apoptosis so that the pathway is stuck in the on position and cancer cells do not commit suicide. Breast cancers are many types which are mainly invasive (infiltrating) breast cancer, non-invasive(ductal, lobular), estrogen fueled, inflammatory and metastatic breast cancer, in these types ductal carcinoma and invasive breast cancers are more common types accounting for about 15% and 80% respectively. CLINICAL SYMPTOMS: Lump or swelling in the armpit. Changes in breast size or shape. Dimpling or puckering of the skin thickening and dimpling skin is sometimes called orange peel. Inverted nipple nipple turns inwards. Crusting or scaling on the nipple. THERAPEUTIC APPROACHES FOR BREAST CANCER: In the present era we have different approaches are there to reduce the breast cancer effect in patients. The treatment of breast cancer is merely dependent on stages of breast cancer, prognosis and risk of recurrence. It is usually treated with breast conserving surgery and then may be with radiation or chemotherapy or both. In case of hormone positive cancers are treated with hormone therapy. Surgery is usually the first line of attack against breast cancer and depends on many factors. Lumpectomy, Mastectomy, lymph node removal and breast reconstruction are comes under the surgery. Chemotherapy treatment uses medicine to weaken and destroy cancer cells in the body, including cells at the original cancer site and any cancer cells that may have spread to another part of the body. It is used to treat early stage invasive breast cancer and advanced stage breast cancer, in some cases chemotherapy is give before surgery to shrink the cancer. In many cases a combination of two or more med icines will be used as chemotherapy treatment for breast cancer. Hormone therapy medicine treats either by lowering the amount of the hormone estrogen in the body or by blocking the action of estrogen on breast cancer cells. Hormonal therapy medicines can also be used to reduce the growth of advanced stage or metastic hormone receptor positive breast cancers and early stage hormone receptor positive breast cancers. Hormonal therapy medicines are not effective against hormone receptor negative breast cancers. RISK FACTORS FOR BREAST CANCER: Many factors can influence a womans getting breast cancer but having one or more risk factors does not necessarily mean that a women will get breast cancer. It is important to remember that breast cancer can also occur in women who have no identifiable risk factors. There are many risk factors are responsible for breast cancer, these are classified into three categories Strong risk factors Moderate risk factors Other risk factors Strong risk factors AGE: The primary risk factor for breast cancer in most women is older age. Overall, 85 percent of cases occur in women 50 years of age and older, while only 5 percent of breast cancers develop in women younger than age 40. Family history: Women who have a family history of breast cancer are at a higher risk for breast cancer than those who do not have such a history. Mainly two autosomal dominant genes, BRCA1 and BRCA2 are responsible for breast cancer. Previous breast cancer: If women had breast cancer in one of the breast previously then there is more possibility of developing cancer in the other breast. This is basically due to hereditary mutation of BRCA gene Moderate risk factors Mammographic density: Women whose mammograms showing many dense areas of tissue in the breast have higher risk of acquiring breast cancer than women showing only fat tissue in her mammogram. Biopsy abnormalities: Women whose previous breast biopsy result showed abnormal proliferation like excessive growth of glandular tissue have an increased tendency of acquiring breast cancer than non proliferative benign breast conditions like fibrocystic changes. Radiation: For the treatment of other cancers a women who have received high doses of radiation therapy on the chest are more prevalence to breast cancer than women who have not exposed to radiation. Other risk factors Hormones: Throughout a womens life breast tissue remain sensitive to hormonal changes that includes during each menstrual cycle, pregnancy and lactation. Increased exposure of estrogen is more porn to breast cancer in women because estrogen stimulates glandular proliferation in breast. Pregnancy and breast feeding: Women who gives child birth at or after the age of 30 have double the chances and women who never given birth have triple the chances of getting breast cancers. Hormone replacement therapy: women aging 50 to 79 who undergo hormone replacement therapy, a combination of estorogen and progesterone for approximately 5 years have increased risk of breast cancer development. Alchol: A women who drink alcohol of two units per day have 8% chances of developing breast cancer than women consuming one unit per day. Increased alcohol consumption increases estrogen levels causing breast cancer. Miscellaneous factors: It may include women of high socio economic status, women working in night shifts exposing to light, race or different ethnic groups like black women and women who smoke have increased tendency of acquiring breast cancer. Women who have other diagnosed cancers of endometrium, ovary or colon have increased chances of getting breast cancer. DIAGNOSTIC TOOLS FOR BREAST CANCER: Evaluation of breast complaints and screening for breast cancer accounts for a significant part of primary care. These screening techniques are useful in determining the possibility of cancer. Generally triple test is used to diagnose the breast cancer; it means clinical breast examination, mammography and fine needle aspiration cytology. Other techniques for evaluation of breast cancer are ultrasonopgraphy, core needle biopsy and genetic tests to evaluate the BRCA mutagenic genes. There are many biomarkers are there to evaluate the breast cancer most of them are useful for early detection some are useful to assess the prognosis of the disease. Risk biomarkers are those associated with increased cancer risk and include mammographic abnormalities, proliferative breast disease with or without atypia, and inherited germ line abnormalities. Prognostic biomarkers provide information regarding outcome irrespective of therapy, while predictive biomarkers give evidence regarding response to therapy. Mammography: It is performed to evaluate the breast lumps or as a screening tool. It is usually recommended as part of the evaluation in women older than 35 years who have a breast mass to help evaluate the mass and to search for other lesions. Mammographic findings propose cancer include increased density, irregular border, speculation, and clustered irregular microcalcification. There have been eight major trials of mammography screening. The observed change in breast cancer mortality has varied widely among these studies but the difference is only in randomization techniques, quality of mammograms, and duration of follow-up and evolving treatments during the trial. To assess the Mammographic density is allied with risk of breast cancer and portrays the effects of different reading conditions on the detection of changes in mammographic features. The subjects were recruited from who were participated in NBSS(National Breast Screening Study) program. The trial was randomized into two groups and subjects were allocated based on age, menopause conditions. i.e. one group contains who had undergone menopause after entry (n=202) and called it as prepostmenopausal group and another group contains who had not (n=202), called it as premenopausal group. By using a computer assisted method they obtained memmogram in each individual. Through the one year they collected mammographs in four reading methods of randomization. They assessed mammographic measures of total, dense and non-dense areas, percent density and associated variance to evaluate the mean effect of the menopause. The result of trial shows mehod-1 gave the largest mean period difference; method -4 gave the least mean period among the four mammographic measures. Finally the result shows that mammographic density is the most reliable and sensitive method for the detection of changes. There is variation in the composition of tissue and also radiographic properties of fat, stroma and epithelium in the breasts of the radiographic appearance from one woman to the other. Literature studies have shown more density of breast is associated with increased breast cancers. Wolfe explained the relativity between variation of mammographic density and the risk of breast cancer. Women have four to six times higher risk of getting breast cancer with more than 75% of density. An extended mammographic density may make difficult to detect breast cancer by mammography. During screen tests it will increase the risk of development of cancer. The reason for the study was to relate mammographic density in base line mammogram and the increased development of breast cancer. The NBSS conducted a screening test with mammography and physical examination. The SMPBC with mammography and OBSP with mammography and physical examination. A cause control study in which the subjects who had histolog ically verified breast cancer were included and subjects whose diagnose of the breast cancer with less than 12 months were excluded. Through radiologist and computer assisted method the mammographic density was examined. The image of unaffected breast of case patient with image of control subjects were examined in a multiviewer in a set of 100 images. The statistical result showed that women with 10% of mammogram density had lesser risk of developing breast cancer than women with 75% of density. Increased risk of breast cancer persisted for minimum of 8 years either detected by screening or other methods. It was less in older women than in younger. 26% breast cancer and 50% of cancers detected in less than 12 months after negative screening test in women younger than age of 56. The study concluded increased risk of breast cancer is seen with higher mammographic density detected by screening or between screening tests. CONCLUSION: The incidence of breast cancer is rising in every country of the world especially in developing countries such as India. This is because more and more women in India are beginning to work outside their homes, food habbits, life styles and shorter duration of breast feeding and late age at first childbirth. Early detection of breast cancer has possibility to save the lives. Weve different biomarkers to detect breast cancer. Mammography is not generally useful in women younger than 35 years who present with a lump. It is performed as an adjunct to the physical examination in evaluating as a screening tool in breast cancer. Mammography is not sufficient to exclude cancer in the evaluation of a palpable mass. Ultrasonography is very useful for evaluating breast lumps and in further defining mammographic abnormalities. It is especially useful in women younger than 35 years.

Natural Religion Versus Revealed Religion Philosophy Essay

Natural Religion Versus Revealed Religion Philosophy Essay Dialogues Concerning Natural Religion is a religious philosophical work of the Scottish philosopher David Hume.  It is about the fight the three characters of Cleanthes, Philo and Demea about the nature of Gods existence. Hume began the process of dialogue later than in 1750, it was published only in 1779. Dialogues Concerning Natural Religion, religion, philosophical works of David Hume, were published posthumously 1779.  The work is written as a fictional dialogue between the three main characters Cleanthes, Philo and Demea. Cleanthes argues for the existence of God.  He stresses the teleological sense, for example, that the worlds effectiveness suggests an intelligent designer. Demea can rather be characterized as a mystic, who claims that God is beyond reason.  The main reason for that belief is an internal feeling or certainty.  However, Demea is trying, at one point, to defend a version of the cosmological proof of God. Philo is the most skeptical of the three, and probably the most often seems to reflect the Humes own point of view, as described in Humes Dialogues as Philosophy of Science. Conversations about religion in the Dialogue concerning Natural Religion, is the literature on philosophy by the Scottish philosopher David Hume.  The publication consults together with three characters- Demea, Philo and Cleanthes, the nature of religion and the existence of God.  They all agree that God exists, but disagree on the nature and properties, and that they can ever gain knowledge of the gods.  Among the things they talk about is the design rationale for the existence of God. Hume started writing the Dialogues on religion in 1750, but did not finish with them until 1776, shortly before he died.  The publication is based in part on the publication of Cicero De Natura Deorum (On the nature of the Gods).  Conversations about religion came to Hume, after he died in 1779. 3. Give a complete account of the Argument from Design as stated by Cleanthes. In part I, the skepticism is discussed, which is made strong by Philo.  Cleanthes, however, rejects the global skepticism because it was not for pragmatic reasons, could be represented.  In Part II to VIII, the argument was put forward by Cleanthes, as the argument from design was discussed. Cleanthes believes that the world has similarity with the products of human activity and could be seen as a great machine.  Since similar effects could also lead to similar effects, it is permissible to infer by analogy that God to the man is similar.  God is a kind of exaggerated human being is, however, better and probably also was distinguished by the usual attributes of immortality, omnipotence, omniscience and benevolence. Thus, represented by Cleanthes anthropomorphism is criticized by the other two severely and extensively.  Demea calls for the incomprehensibility of God, pointing to the weak nature of the human spirit, which is composed of variable and  Philo designs also a long list of alternative conclusions, and describes the world that could not be excluded by Cleanthes: his argument still leaves many gods instead of one, also could the world be regarded as good as an animal, which enables a completely different description of God.  He also puts forward a variant of the theory of nature, passes after a series of finite worlds to each other the momentum of change.  In this theory, he is already approaching the Hume to as yet unknown theory of evolution.  Cleanthes can be traced from Philo provoking presentations and throws out any of his theories of the world, which were produced exactly as it is of necessity.  This philosophy applies, however, against the design argument for which th is is true either.  At the end of Part VIII, he claimed that there was the reluctance of any appeal, the only tenable position, as stated in How David Humes Critique of the Design Argument Survives for Three Centuries. Two of the experts involved in the dialogues represent two major trends of the Century of Enlightenment in the discussion of natural religion: one, Cleanthes, is a deist, a theist or perhaps better, not only argues for the existence of God but also of  His providence, the other Demea, is a defender of orthodox Christianity.  The third, Philo is the fencing of the skeptical point of view.  The theist Cleanthes claims arrogantly that the power of human reason is sufficient to reach, drawing on the experience of the world and the logic of the arguments, the authors knowledge of the universe.  The orthodox Demea insists, that it is not the strength, but the weakness of a man, and his reason which brings us to the infinity of God and his mysteries.  The skeptic Philo sometimes slyly encourages optimism for the Cleanthes and other pessimism of Demea, thus provoking the confrontation between the two.  This strategy paves the way to defending their thesis of the triumph of mode rate skepticism concerning natural religion.

Television And The Internet :: essays research papers

Television and The Internet Having already done my fair share of internet surfing, I was excited to finally have the opportunity to do a research paper that involved this vast and seemingly boundless electronic world. It is easy to passively interact with the rest of the world and scan effortlessly through millions of pages of information, some of which is useful, some of which simply takes up space; the problem that many researchers and interest groups face is making sense of the whole thing. What effects does the internet have on people? This question is no doubt an immense one. In this paper I will attempt to explore the effects the internet has on one major aspect of our everyday lives: television. The internet is not only linked to television in the sense that they both convey vast amounts of information, but they both seem to complement each other. The internet is presenting vast amounts of information about our favorite television shows as well as providing an arena for discussion about the programs. I will present to you what is available out there and hypothesize how this can enhance or alter one's experience with television. Included in this paper will be actual responses from individuals around the world who responded to a survey I posted on various internet newsgroups devoted to specific television shows. The most relevant responses are attached as an appendix at the end of this paper. I will first briefly define the terms that I will use to avoid any ambiguities. When I refer to the internet, I refer to the vast encyclopedia of information presented through a graphical interface as pages, or web sites. Newsgroups refer to a different aspect of the world-wide web. They consist of over ten thousand separate and specific forums or centers where people post comments or remarks and read other's replies or comments. Each newsgroup is devoted to a different theme. For example, there are over two hundred devoted to television; one or two for Friends, one for Party of Five, one for the CBC, etc. Chat groups are an interactive aspect of the world-wide web in which people can talk in real time. There is an unlimited number of channels one can speak on, although there are more popular ones with specific themes; for example, the channel alt.tv.simpsons is a popular channel for Simpsons fans to discuss the show. These are the main aspects of the world-wide web which can handle affairs dealing with television. The broadest, of course, is the internet. I will refer to those who browse the internet as "surfers.

Whippets :: essays research papers

In this research paper I will attempt to explain what whippets are. I will try to give the necessary information to show the benefits and possible side effects. I will discuss a brief history of the gas and how young adults obtain the chemicals to make â€Å"whippets†. Whippets are charge dispensers that deliver nitrous oxide as (en.wikipedia.org) describes. Nitrous oxide is a colorless, non-flammable gas. It has a slightly sweet taste and odor. It is non-toxic and non-irritating and when inhaled in small quantities can produce mild hysteria and giggling or laughter. That is why it is also referred as the "laughing gas". When inhaled in pure form it will cause death by asphyxiation because at atmospheric temperatures and pressure, the oxygen in nitrous oxide is not available to the body. (www.idavette.net) Nitrous Oxide gas was first discovered by English scientist in 1772 and was first published about in 1776. Through his experiments he discovered Nitrous oxide's analgesic effects in 1800. From 1800 to 1840, Nitrous was primarily used for recreation at traveling public shows, but in 1844-1845 Nitrous was recognized as having some medical use in dentistry. In the late 1800's William James published some accounts of his work with Nitrous Oxide and called its effects of "some metaphysical significance". Nitrous has remained popular throughout the 20th Century and is sold over the counter in small cartridges ("whippets") for making whipped cream and in large tanks for industrial and medical purposes. Whipped cream dispensers are the most common used by young adults. The nitrous oxide is then inhaled. Many people use nitrous oxide for the benefit of its psychological effects. Long-term use in large quantities has been associated with symptoms similar to vitamin B12 deficiency: anemia and neuropathy. It can be habit-forming, mainly because of its short-lived effect and ease of access. Its use is thus restricted in many districts such as California. (en.wikipedia.org) Nitrous oxide causes euphoria, dizziness, and, in some cases, a mild aphrodisiac effect. It can also result in mild nausea or dizziness if too much is inhaled in a short time. The anaesthetic function of nitrous oxide is not completely understood, but it is thought that the gas interacts with the plasma membranes of nerve cells in the brain and thus affects the communication among such cells at their synapses. Nitrous oxide induces a state of behavioral disinhibition, analgesia, and euphoria. Unless the compound is administered with at least 20 percent oxygen, hypoxia can be induced.