Applications of a Conic Section essays

Applications of a Conic Section essays Conic sections are a group of curves which are generated by slicing a cone with a plane. If the plane is tilted parallel to the slope of the cone, the cut produces a parabola. When a parabola is expressed in Cartesian coordinates, the equation is a second order polynomial. This curve is commonly found in nature, engineering applications and architecture. The study of projectile motion is a real life application of the parabolic conic section. Soccer balls, divers, missiles and airplanes follow perfect parabolic trajectories if the air resistance is neglected. Garden hoses and fountains discharge water droplets whose trajectory is also described by a parabolic motion (Serway Parabolic mirrors are commonly found in optical instruments such as cameras, telescopes, and microscopes. The surface of the mirror has a parabolic form. Parabolic mirrors ensure that the image is not blurred as it eliminates aberration, i.e. reflected rays should only pass through a single focal point. This type of mirrors are expensive as they are not easy to manufacture. Vehicle headlights also have a parabolic curvature. If a bulb is located exactly at the focus of a parabolic mirror, the rays are reflected parallel to the axis of the para...

Campari Case

It is split in two different channels, the modern one (GDO, DO) and the traditional one (wholesalers, liquor stores and ho. e. ca day and night). Certain areas let Campari to distribute its products directly to customers such as disco for spirit segment or directly to restaurants for Wine segment (i. e. Sella ; Mosca). Distribution strategy so is fundamental to GARANTIRE a constant and efficient position and to be close to customers. For this reason Campari group in Italy decide to outsource this process of supply chain. In fact the central distribution center is owned by ‘’Gruppo Zanardo’’. As Donatella Rampinelli, Customer management director, highlight ‘’ the choice to outsource the distribution process in founded on logics of efficiency and EFFICACIA. Until 1991 distribution process was owned by Campari but this generate very high cost for the company so starting from 1995 they decide to outsource the process (also more focused in GDO channel) and this permit also to maximizing the effect on warehouse management ( stocking, order management, inventory). Export Management: that involve foreign order, management of commercial border and custom paperwork and physical delivery management. Administrative: that involve administrative and physical paperwork related to import/export, management of warehouses, or the introduction of new products (custom codes and quantification of taxes). Customer management * The advantages of having a stable production cycle producing batches of large dimensions is that it could facilitate planning of production, warehouses, distribution, and order. Standardization of the process. Another could be cost saving in terms of production process, using economies of scale or the fully disponibilita of products in order to maintain customer loyalty. On the other hand disadvantages are related to higher stock and warehouse costs (also due to taxes) †¦.. * The distribution process start from the order of the customer, it could be inserted directly from headquarters (fax-mail) or arrive from the SAP CIS through EDI (electronic data interchange) or via CRM (customer relationship management) through the sales force. The process of distribution end with the shipment that could be shipped from production plants directly to customer or passing through distribution centers. The process of shipment as already said is outsourced in order to reduce transportation costs, in order to obtain better quality and have on time information on the status of deliveries. Obtaining information in real time about the status of the shipment is fundamental in order to be able to inform the customer in real time and also in order to a better planning of next shipment, warehouses and problem solving (returns, substitutions, delays, urgencies, and so on). * Customer service†¦Ã¢â‚¬ ¦ How does the online auction system work? * Campari Case It is split in two different channels, the modern one (GDO, DO) and the traditional one (wholesalers, liquor stores and ho. e. ca day and night). Certain areas let Campari to distribute its products directly to customers such as disco for spirit segment or directly to restaurants for Wine segment (i. e. Sella ; Mosca). Distribution strategy so is fundamental to GARANTIRE a constant and efficient position and to be close to customers. For this reason Campari group in Italy decide to outsource this process of supply chain. In fact the central distribution center is owned by ‘’Gruppo Zanardo’’. As Donatella Rampinelli, Customer management director, highlight ‘’ the choice to outsource the distribution process in founded on logics of efficiency and EFFICACIA. Until 1991 distribution process was owned by Campari but this generate very high cost for the company so starting from 1995 they decide to outsource the process (also more focused in GDO channel) and this permit also to maximizing the effect on warehouse management ( stocking, order management, inventory). Export Management: that involve foreign order, management of commercial border and custom paperwork and physical delivery management. Administrative: that involve administrative and physical paperwork related to import/export, management of warehouses, or the introduction of new products (custom codes and quantification of taxes). Customer management * The advantages of having a stable production cycle producing batches of large dimensions is that it could facilitate planning of production, warehouses, distribution, and order. Standardization of the process. Another could be cost saving in terms of production process, using economies of scale or the fully disponibilita of products in order to maintain customer loyalty. On the other hand disadvantages are related to higher stock and warehouse costs (also due to taxes) †¦.. * The distribution process start from the order of the customer, it could be inserted directly from headquarters (fax-mail) or arrive from the SAP CIS through EDI (electronic data interchange) or via CRM (customer relationship management) through the sales force. The process of distribution end with the shipment that could be shipped from production plants directly to customer or passing through distribution centers. The process of shipment as already said is outsourced in order to reduce transportation costs, in order to obtain better quality and have on time information on the status of deliveries. Obtaining information in real time about the status of the shipment is fundamental in order to be able to inform the customer in real time and also in order to a better planning of next shipment, warehouses and problem solving (returns, substitutions, delays, urgencies, and so on). * Customer service†¦Ã¢â‚¬ ¦ How does the online auction system work? *

Writing a physics report Lab Example | Topics and Well Written Essays - 750 words - 1

Writing a physics - Lab Report Example Fenner and other (1984) indicated that the modulus of rigidity is given by the ratio of stress to shear strain often represented mathematically as ï  ´/ï  §. As widely cited, modulus of rigidity is essential in measuring the material’s shear stiffness and it is known to be analogous to Young’s modulus for any elastic behaviour in compression or tension (Benham, Crawford & Armstrong, 1996). Given that a ductile material component useful in providing shear, an individual need to note that the maximum shear stress is safety, which is less than the materials yield shear stress (ï  ´y). However, a brittle material the criterion of failure is based upon its tensile stress (Gere &Timoshenko, 1984). Research indicate that the theory of torsion often give the torque in form of rotation as The equation 1 above is often derived from Hooke’s law and it is also valid for the shear stresses though somewhat lower than shearing proportional limit (Case, Chilver & Ross, 1993). In a solid circular section, it has been outlined mathematically that the polar second moment of the area of cross section is given by equation (2) (Ryder, 1969) In this experimental set up, there were various sets of apparatus used. Among them were the torsion machine, a torsion bar, a gearbox, a torque meter, two protractors, a counter, and a hand-wheel. This way, a torsion machine was used for carrying out a test involving a specimen that was accommodated within the socket at each end. The 60:1 reduction gearbox served the purpose of manually applying the angular displacement at the left- hand side. The torsion bar was essential in this experiment given that it was used for measuring the torque when at right-side with a torque meter being used for reading digital data. The two protractors listed above were vital in this experiment since they were used for purposes of measuring the rotation of the specimen. They were placed at the gearbox, in which case, one was placed at the input hand wheel

Criminal Scenarios Essay Example | Topics and Well Written Essays - 1750 words

Criminal Scenarios - Essay Example Mens rea refers to the intention of the person behind committing the crime. A person can only be held to be liable for committing a crime if there is an explicitly stated or inferred criminal intent to commit the crime. Mens rea is an essential element of homicide and has to be present for liability to be determined. In the present case, Clark’s intention was to hunt deer and he mistook Andrew and Blake for a pair of deer due to his lack of experience as a hunter. This is despite the fact that Andrew and Blake had taken all reasonable precautions to avoid being mistaken for animals by wearing orange jackets. However, his action, or actus reus, led to the death of both brothers. Apart from that, there were no preliminary inchoate crimes that can lead one to believe that Clark intended to shoot and kill Andrew and Blake. There is no scope for Clark to claim a justification defence that could prove that while he committed the crime of homicide it was justified under the circumstances. Clark can be held liable under the felony murder rule. According to this rule, a death that is caused unintentionally during the course of committing a felony is a first-degree murder. If the felony murder rule is applied to the situation of Clark, it needs to be determined whether Clark was committing a felony at the time when he shot Andrew and Blake.

The Causes of Gallbladder Attacks Essay -- essays research papers fc

The Causes of Gallbladder Attacks Outline I. Introduction: It is estimated that approxiamately 10 to 20 percent of the population in the United States and Western Europe are currently being affected by Gallbladder attacks. Thesis statement: These attacks are mainly caused by the development of gallstones in the gallbladder. II. Definition. A.  Ã‚  Ã‚  Ã‚  Ã‚  Gallbladder B.  Ã‚  Ã‚  Ã‚  Ã‚  Gallstones III. Causes. A.  Ã‚  Ã‚  Ã‚  Ã‚  Obesity B.  Ã‚  Ã‚  Ã‚  Ã‚  Estrogen C.  Ã‚  Ã‚  Ã‚  Ã‚  Ethnicity D.  Ã‚  Ã‚  Ã‚  Ã‚  Age and gender IV. Symptoms. A.  Ã‚  Ã‚  Ã‚  Ã‚  Chronic indigestion B.  Ã‚  Ã‚  Ã‚  Ã‚  Sudden, steady and moderate-to- intense pain in your upper abdomen C.  Ã‚  Ã‚  Ã‚  Ã‚  Nausea and vomiting V. Diagnosis. A.  Ã‚  Ã‚  Ã‚  Ã‚  Ultrasound B.  Ã‚  Ã‚  Ã‚  Ã‚  Cholecystogram Conclusion It might sound interesting to explore the reason why so many people are currently being affected by these attacks. According to statistics, 1 out of 8 men and 1 out of 4 women will have gallstones or gallbladder problems before they reach the age of 60. What then is the Gallbladder? The gallbladder according to Dorland’s Medical Dictionary is ‘the pear shaped reservoir for the bile on the posteroinferior surface of the liver, between the right and the left quadrate lobe, from its neck the cystic duct projects to join the common bile duct’. The function of the gallbladder in the human body is to solve and concentrate bile, which is produced by the liver and is necessary for proper digestion of fats. What are Gallstones? Gallstones form when the liquid stored in the gallbladder hardens into pieces of stone-like material. The liquid, called bile is used to help the body digest fats. Bile is made in the liver, and then stored in the gallbladder until the body needs to digest fat. At that time, the gallbladder contracts and pushes the bile into a tube—called the common bile duct—that carries it to the small intestine, where it help with digestion. Bile contains water, cholesterol, fats, bile salts, proteins, and bilirubin. Bile salts breaks up fats, and bilirubin gives bile and stool a yellowish color. If the liquid bile contains too much cholesterol, bile salts, or bilirubin, under certain conditions it can harden into stones. They may occur as a simple, large stone or many small ones. Gallstones are mixtures of compound, but are mostly cholesterol. According to studies many people have gallstones and never know it. Matter of fact, gallstones often cause no symptoms ... ...h a type of surgery called Cholecystectomy. The Non-Surgical approaches are used only in specific situations such as when a patient’s condition prevents using an anesthetic. In such cases, Oral dissolution therapy is used. In conclusion, 1 out of 10 people are at risk for gallbladder attacks. Gallstones are the main reason for these attacks. If you’re older, a female or overweight and have a sedentary lifestyle, a diet high in fat and sugar, you pose to be a potential candidate for these painful attacks. Bibliography Dorland’s Medical Dictionary http://www.lap-associates.com/SurgicalServices/biliary.html http://www.marysherbs.com/heal-gal.html Mayo Clinic Health Information. â€Å"What are Gallstones?† 11 Nov 2000< http://aolsvc.illness.aol.com/DS000165/main.html> http://www.med.upenn.edu/~surgery/clin/gallblad.html http://wwwmedocs.ucdavis.edu/IMD/420B/esylabus/biliary.html http://www.moreton.com.au/ana/handbook/gall.html National Digestive Diseases Information Clearinghouse. â€Å"Gallstones.†< http://www.niddk.nih.gov/health/digest/pubs/galstn/gallstns.html> http://www.wellweb.com/nutri/dieting_and_gallstones.html http:// www.yourhealth.com/ahl/1608.html

The Challenge Facing Managed Care Organizations

The greatest challenge for managed care organizations (MCOs) in our current time is how to obtain lower priced medical fees. As we all know, American health care should essentially be a nonprofit enterprise. However, the privatization of American health care holds that health care in general and hospitals in particular are increasingly operating on a for-profit basis. In fact, the for-profit hospital sector has accounted for a relatively constant share (about 15 percent) of hospital beds over the last twenty years (Morrisson, 1999). This is why recently the U.S. Congress tries to push more â€Å"consumer-directed† health plan options to avoid cash-strapped managed care organizations (MCOs) to boost their deductibles, raise premiums and even defy federal law by authorizing policy holders to buy prescription drugs from low-cost vendors in Canada (Smith, 23 September 2004). Managed care organizations (MCOs) often apply the traditional fee-for-service models, which do not provide adequate financial controls and utilization incentives for physicians and hospitals to contain the costs of providing healthcare. Under managed care, the needs of the patients are balanced with efforts to provide cost-effective care. Typically, MCOs enroll subscribers by promising to provide all necessary medical care in exchange for a fixed monthly premium. The MCO also contracts with hospitals, physicians, and other healthcare providers to dispense the necessary medical care to its enrollees at a discounted reimbursement rate. In exchange for accepting reduced fees, the caregivers gain access to the MCO’s enrolees (Kirby, Sebastian & Hornberger, 1998). A problem with managed care is that employers who offer a health maintenance organization (HMO) to their employees often pay the premium as long as the HMO premium was not higher than the fee-for-service premium. This behavior by employers creates distorted incentives for the HMO in controlling its costs. Enthoven (1993) suggested that this incentive distortion can be corrected when employers design better alternatives for their employer contributions. The employer could contribute a fixed-dollar amount for health insurance with the employee paying the full difference between plans. The greater the portion of the marginal premium paid by the employees is, the stronger the incentive is to choose lower-cost plans. For example, if the employer pays 80 percent of the premium and the employee pays the remainder, then the employee pays only 20 percent of the difference between the low (let’s presume here) HMO premium and the higher fee-for-service premium. HMOs and other managed care arrangements are organized on a prepayment basis that appear in a wide variety of forms. An HMO could hire physicians on a salary, contract with a preexisting group practice of physicians, or contract with physicians who maintain a fee-for-service practice. According to Luft (1991), â€Å"Because specific social, legal, historical, political, and economic aspects of the medical care environment have shaped delivery systems such as the HMO, it is not reasonable to expect that the typical HMO could be transplanted intact to another country† (p. 173). The key to HMO cost savings is the organization’s wide range of medical services, both inpatient and outpatient. In this way, the HMO can receive the cost savings implied by reduced hospital use. This may be difficult to manage in systems where there are separate financing mechanisms for primary care physicians and inpatient care. As Luft (1991, p. 180) remarks. â€Å"If there were no way to shift funds from the ‘hospital side’ to the ‘physician side,’ it would be difficult to reward clinical decision makers for the development of more cost-effective practice styles.† This is why three areas appear to offer a magnitude of opportunities where MCOs can assist patients, these are ambulatory care, mental health and the alternative therapies. Firstly, ambulatory care-sensitive conditions reflect the quality and availability of primary care services, since they are readily treatable without the need for hospitalization. There are differences in the hospitalization rate for ambulatory care sensitive conditions. Shenkman et al. (2005) had indicated that specialty ambulatory care is important for many children with chronic conditions. However, access to such care may be constrained within managed care environments. The use of primary care providers (PCPs) as gatekeepers for managed care organizations (MCOs) is one commonly used strategy to control specialty care use. Studies of the impact of gatekeeping on children's receipt of specialty care have resulted in mixed findings. Some studies found more specialty care use in gatekeeping MCOs, compared with non-gatekeeping MCOs. Other researchers found that the replacement of a gatekeeping system with an open-access model increased specialty visits among a group of children with chronic conditions. Although the focus on gatekeeping in general yields some important information, MCOs use many other strategies concomitantly with their PCP gatekeepers, such as capitated payments, financial incentives, and prior authorization procedures. The use of these concomitant strategies may meet the unique needs of children with chronic conditions, including their need for specialty physician care. On the other hand, managed care had been significant contributor on delivery systems for mental health services. Taylor et al. (2001) had indicated that direct and indirect persuasion to provide more cost-effective treatments has been one consequence. The cost-saving qualities and the effectiveness of group interventions have produced clear expectations for an increased use of therapy groups. In the research of Taylor et al. (2001), they compared perceptions and uses of group treatments on a national sample of managed care organizations and mental health providers. Implications of differences and similarities between directors of managed care organizations and treatment providers are examined and discussed across five response categories (familiarity/training perceived effectiveness, likelihood of reimbursement/referral, daily use and expectation for future use). Taylor et al (2001) favored the approach where MCOs calibrate treatment referral/reimbursement decisions. Recently published comparison outcome studies and meta-analyses can and should empirically guide the present treatment delivering systems. Lastly, many managed care organizations have already begun to integrate complementary and alternative medical therapies (CAM) with conventional medical providers. Medical practitioners are obligated to assess CAM therapy with patients. Alternative therapies require professionals to rethink staff competency, patient assessment, and patient-focused care. Medical leaders must understand CAM trends and therapies to better integrate these concepts into health care policy, standards of care, and ethical decisions (Parkman, 2001). Among ambulatory care and mental health care, alternative therapies, or CAM, offers the most favorable and cost-efficient strategy for MCOs. This is because the aging â€Å"baby boom† generation is beginning to experience chronic but non-life threatening conditions, such as joint pain, headaches and menopause-related complaints and they are willing to explore options other than prescription drugs. For health plans, the attraction of offering alternative care products lies in retaining and attracting new members, diversifying their services from competitors in a congested managed care market and in attempts to address current or proposed state mandates (West, 1997). In 1997 alone, expenses for professional services were $21.2 billion, a 45% increase over the earlier 1990 data. Expenses for professional services, herbals, vitamins, diet products, books, and classes totaled $27 billion. Five surveys conducted since 1990 have reported frequent use of CAM, ranging from 30% to 73% by patients suffering from conditions such as cardiovascular disease, cancer, arthritis, HIV and AIDS, multiple sclerosis, and chronic musculoskeletal pain. Furthermore, the demand for CAM by the general public is increasing, despite the fact that its use is largely paid by consumers without coverage by third-party payers. In 1997, Americans spent an estimated $13 billion for visits to CAM providers and an additional $2 billion for commercial diet supplements and over-the-counter megavitamins (Pelletier & Astin, 2002). Managed care should not only focus on cost savings, but they should also look into diversifying their services. MCOs have generally contributed to the decline in the U.S. health cost growth rate. Their potential will continue to be limited to the extent that employers fail to offer true financial advantages to consumers who choose the low-cost health plans. Thus, more reforms in the policies should be reviewed and revised so that more people could benefit from the quality health care everyone deserves. References Enthoven, A.C. (1993). The History and Principles of Managed Competition. Health Affairs, supplement, 24-48. Kirby, E.G., Sebastian, J.G. and Hornberger, K.D. (1998, Jan/Feb). The Effect of Normative Social forces on Managed Care Organizations: Implications for Strategic management/Practitioner Response. Journal of Healthcare Management. 43(1):81-106. Luft, H. (1991). Translating the U.S. HMO Experience to Other Health System. Health Affairs 10:172-186. Morrison, I. (1999). Health Care in the New Millennium. NY: John Wiley & Sons, Inc. Parkman, C. (2001, February). Alternative Therapies Are Here to Stay. Nursing Management, 32(2): 36-40. Pelletier, K.R. and Astin, J.A. (2002, Jan/Feb). Integration and Reimbursement of Complementary and Alternative Medicine by Managed Care and Insurance Providers: 2000 Update and Cohort Analysis. Alternative Therapies in Health and Medicine, 8(1): 38-44. Shenkman, E., Tian, L. and Schatz, D. (2005, June). Managed Care Organization Characteristics and Outpatient Specialty Care Use Among Children With Chronic Illness. Pediatrics, 115(6): 1547-1555. Smith, C. (2004, Spetember 23). Senate Panel Examines Health Care Choices, Insurance Costs. Knight Ridder Tribune. Taylor, N.T., Burlingame, G.M., Kristensen, K.B., Fuhriman, A. et al. (2001, April). A Survey of Mental Health Care Provider's and Managed Care Organization Attitudes Toward, Familiarity With, and Use of Group Interventions. International Journal of Group Psychotherapy, 51(2): 243-264. West, D. (1997, November 10). MCOs Integrating Alternative Care. National Underwriter, 101(45): 58.   

Verbal Victimization And Mental Health - 1652 Words

Many secondary school students has severely impacted by bullying, making them feel self-conscious, less confident, and more anxious. A study by Collier, Bos, and Sandfort (2013) discusses this common incidence and the connection between homophobic verbal victimization and mental health in teenagers. The article highlights a specific kind of bullying, homophobic name-calling and its connection to the teenager mental health in the Netherlands. They also observe the different parts of gender, gender expression, and sexual preferences in homophobic peer victimization. The verbally victimizing behaviors that are being used by children and teenagers such as name calling tend to emphasize status differences. Teenagers who use of homophobic†¦show more content†¦After, the authors explain how peer victimization has various mental health outcomes in LGB youth. They found that when controlling for previously reported levels of each psychosocial outcome variable that homophobia victimiz ation anticipated concern, misery and a lower sense of school belonging to the boys and extraction in girls. After this finding, it indicates that homophobic victimization had a great mental health impact on sexual minority youth more than heterosexual peers. In addition, the authors discuss that in the Netherlands, 13-15-year-olds found that who have same-sex most likely to get destructive treatment by other students than those without same-sex. In the Netherlands in which the social expectations for women and men are very similar than different. Therefore, where homosexuality is less denounced and gender roles are less harshly observed. An article is trying to prove different consequences of homophobic name-calling and the effects of mental health on teenagers where the authors also discuss about different risk factors such as negative treatment by peers, same-sex attractions, gender non-conformity, and psychological distress. Study Purpose and Hypotheses This study explained the predominance of homophobic name-calling among Dutch