Managing projects Essay Example | Topics and Well Written Essays - 1500 words

Managing projects - Essay Example It mainly depends upon three factors namely project goal, project milestone and project order and timeline. Now the basic principles of project management are stated below: - Be Clear: - The most essential aspect of a project is the clarity. It is the duty of the project manager, to ensure clarity in the project. The two basic elements of clarity are direction and focus. Direction is about making everyone to work towards the same objective and Focus is about ensuring every team member gets a clear idea about the scope of the project. Maintain a Positive Attitude: - It is important to maintain a positive attitude at the work place. In addition, there are several benefits for maintaining a positive attitude. For example, it improves the relationship with the stakeholders and also helps to deal with the project challenges. Communication: - Superior communication is probably the most important criteria towards the success of a project. It enhances the coordination among team members and also helps to inform the stakeholders about the happenings (project-management-skills, n.d.). Success Failure Criteria According to Standish CHAOS Report of 2004, there are some factors which are commonly found in a successful project. The factors are mainly user involvement, proper planning, clear statement of requirements, clear objectives and vision, smaller project milestones, and realistic expectations among others. Similarly there are some factors which force projects to fail. For example, errors pertaining to estimation and planning, implementation factor, and also human factor may lead to project failure. Hence, to let the team members know about the reasons behind the success and failure of a project, it is important to define success and failure criteria. In addition, it also helps to monitor a project. Benefits of Managing Projects There are several techniques by which a project can be managed (Lasa Information Systems Team, 2003). The benefits of some of the systems are presented below: - Project Management Technique Benefits PERT 1. This method is useful in controlling the cost (Mittal, 2006). 2. It uses graphical displays, which allow the team members to understand the project better. CPM 1. This method highlights the critical path and also emphasizes on the slack time. 2. It is mathematically simple (University of Illinois Springfield, n.d.). PRINCE 2 1. Greater control over the resources. 2. It helps to manage the risks associated with a project more effectively (Maserang, 2002). SECTION II Project Initiation Document A project initiation document is considered as the top level project planning document. Through the project initiation document, a company can gather all the information needed for a project to begin (Mindtools, n.d.). In order to portray the importance of project initiation document, a draft will be presented. To illustrate it with an example a health care project is considered. Project Goals – To examine Hepatitis  œ B of the entire population in a village. Scope – The project has the scope to reduce the number of

Definition of Art by scholars Essay Example | Topics and Well Written Essays - 500 words - 8

Definition of Art by scholars - Essay Example It can be deduced the amount of subjectivity involved as elements of beauty and experience both depends on the viewers’ perspectives. During the classical period, art’s meaning focused on the craft or skill, giving credence to its clear definition as: ""the product of a body of knowledge, most often using a set of skills" (Art Encyclopedia: Classical, par. 1). The famous artists of the time were Leonardo Da Vinci and Michaelangelo. Da Vinci’s â€Å"the Mona Lisa and The Last Supper occupy unique positions as the most famous, most reproduced and most parodied portrait and religious painting of all time, their fame approached only by Michelangelos Creation of Adam† (Leonardo Da Vinci, par. 3). The post-Renaissance period highlighted the aesthetic value of art as contrasted to other art forms of various functions or uses. Accordingly, â€Å"by the end of the 19th century, art was separated into at least two broad categories: namely, fine art and the rest - a situation that reflected the cultural snobbery and moral standards of the European establishment† (Art: Post Renaissance, par. 3). One of the most prominent artists of the time was Peter Paul Rubins with his Fall of Phaeton, the Battle of Anghiari, and Elevation of the Cross, all manifesting the need to â€Å"add action, and emotion, scenes painted in the instant of a moment. Combining these things with a strong contrast of light and dark adding rich colors† (Art history: Baroque, par. 9). During the early 20th century, art’s definition was strategically broadened in styles and techniques. As emphasized, â€Å"artists suddenly found themselves with far greater freedom to create paintings and sculpture according to their own subjective values. In fact, one might say that from this point "art" started to become ‘indefinable’† (Art Encyclopedia: 20th century, par. 1). The famous artists of the period were â€Å"Van Gogh, Cezanne, Gogan, and Seu rat.

Physiology and Pharmacology of Hypertension

Physiology and Pharmacology of Hypertension Introduction High blood pressure, or most usually termed as hypertension is one of the most common diseases that  affects the human population and approximately 1 billion individuals are afflicted by it and around 7.1 million deaths per year can be affiliated with it. (Chobanian, et al., 2003). However all these deaths are caused mostly by cardiovascular disease and another disease, death does not occur b hypertension on its own but by many of the acute linked diseases like Myocardia Infraction, strokes and renal failures. (Rodriguez-Cruz, 2009). As it is the leading cause of mortality and morbidity, it possesses important health challenge as the cost associated with treating it and reducing other risk factors associated with it a lot of active research is being done to understand the causes and the pathophysiology. Classification Normal blood pressure is considered to be 115/75 mmHg, whereas the 115 is the systolic pressure (occurs during contraction of the ventricles) and 75 is the diastolic pressure (occurs during the relaxation of ventricles). (Oparil Weber, Hypertension: A Companion to Brenner and Rectors The Kidney, 2005). An individual is treated with hypertension when their blood pressure is consistently over 140/90 mmHg, however doctors these days are becoming more cautious and start treatment when the pressure touches 130/80 mmHg . It is known that cardiovascular risk increases for every 20/11 mmHg increment. (Chobanian, et al., 2003) Hypertension can be broadly classified into two groups; primary/essential and secondary hypertension. About 90 to 95% population diagnosed with hypertension has primary type, for which the cause is not full known and seems to be more prevalent as people age; it may increase up to 75% in people aged over 75. (Rodriguez-Cruz, 2009) (Carretero Opari, 2000). Secondary hypertension is caused by an underlying medical condition which has altered the homeostatic pathway of regulating blood pressure. Secondary hypertension is more easily treatable as the underlying cause can be identified. Some commonly recognised diseases that may cause hypertension include Cushings disorder, kidney diseases and tumours. Another important cause is the genetic abnormality of the aorta. (Williams, 2010). Signs and Symptoms Moderate hypertension which starts from 140/90 is asymptomatic. Prolonged and sudden enhanced blood pressure is linked to headaches, sleepiness and visual disturbances; which in turn can cause nausea. (McPhee, Papadakis, Tierney, 2008)While it is known hypertension is more prevalent in elderly, children can be affected as well in the children the symptoms may be as more acute like epistaxis, and bell palsy. (Rodriguez-Cruz, 2009). Children usually exhibit hypertension due to some other underlying cause, and thus most cases are of secondary nature. (Rodriguez-Cruz, 2009).The signs and symptoms of secondary hypertension are dependent upon the ailment that is causing it and thus the indicators for Cushings syndrome would be different from the genetic one or drug induced one. (Williams, 2010) Pathophysiology The exact cause of the primary hypertension is not known. There are many risk factors including age, genetics, metabolic, race and â€Å"sedentary lifestyle which can cause obesity† and it has been estimated that 85%of the cases of hypertension have a higher BMI than 25. (Haslam James, 2005) Figure 1: This figure shows the key elements of the pathophysiology of hypertension and all the risk factors which increase the likelihood of contracting the ailment. Abbreviations used here: AME- apparent mineralocorticoid excess; CNS central nervous system; GRA glucocorticoid-remediable aldosteronism. (Oparil, Zaman, Calhoun, Pathogenesis of Hypertension, 2003) The pathophysiologic mechanism and the vascular irregularities are speculative and it is actively being researched upon. Blood pressure is the combined consequence of cardiac output and vascular resistance thus either one can independently or in combination cause hypertension. (Dreisbach Sharma, 2010). Different studies show that several factors may work independently or together to turn the neurohumoral systems on or off. In patients with a hyper-responsive system due to â€Å"changed vascular properties† an aggravated pressure flow is observed. (Randal, 1991). It has also been studied that there is a natural evolution of the disease thus man researchers suggest the one of the reason of the early elevations of the blood volume or the cardiac output may be the inadequate elimination of sodium by kidneys. Increased sodium levels can increase the osmotic pressure hence the blood volume. It chronic hypertension subjects the cardiac output and the blood volume is usually close to the normal. So it can be inferred that hypertension is maintained by the increase in vascular resistance by a decrease of elasticity of the walls as in aging or â€Å"by a reduction in lumen Diameter† (Khabunde, 2007) when the individual has been following a medically unhealthy lifestyle. These â€Å"changes in arterioles, which increase total peripheral resistance, result in an increase in diastolic and a secondary increase in systolic blood pressures† (Randal, 1991) Another factor that different studies have showed relate the decrease in sensitivity of receptors of the receptors in the vessels The decrease in receptors sensitivity modifies central nervous system (CNS) manipulation of sympathetic nervous system (SNS) distribution, resulting in two expressions. First, having an insensitive receptor requires a larger change in blood pressure to produce the same response as the receptor doesnt get activated. Secondly decreased receptors â€Å"sensitivity results in enhanced SNS activity for a given level of arterial blood pressure.† (Supiano, 2001) In hypertension there is has been shown evidence that changes in vascular endothelial function (VEF) can hamper normal vascular tone of hypertensive patients. Vascular tone can be changed by increase circulation of angiotensin II, or by the increased sympathetic activity (as discussed above). The altered sympathetic activity can lead to a decrease in production of nitric oxide which is a vasodilator or endothelin production could increase, which is a vasoconstrictor. (Khabunde, 2007). Type 2 diabetes can causes endothelial dysfunction â€Å"by enhanced oxygen free radical-mediated damage and decreased nitric oxide bioavailability.† (Khabunde, 2007). Other factors that maintain hypertension are caused by dysfunction in electrolyte homoeostasis especially deviations in sodium, calcium, and potassium concentrations. Sodium example has been already discussed above. In addition, calcium increases vascular contractility. It can also stimulate renin release; the same mechanism is thought to operate in obesity-mediated hypertension. Renin synthesis epinephrine, and activity of the sympathetic nervous system, which can be linked back to abnormalities seen in vascular tone. Potassium, however, helps decrease the blood pressure as it suppresses the release of renin. (Rodriguez-Cruz, 2009). This figure explains the different factors that directly affect the blood pressure, which is later affected by other different factors. In hypertension cardiac output is usually normal and therefore peripheral resistance sustains hypertension by the dysfunction in vascular function or decreases in lumen by a sedentary lifestyle. The figure is taken from Wikipedia. (Wikipedia, 2009) It can be seen the complexity of the system, as many mechanism works to sustain hypertension. In different individuals, it can be difficult to understand which systems are operational thus designing treatments can be difficult, and treatments are then usually more often designed to affect the regulatory factors rather than cause. (Randal, 1991) Treatment Treatment usually works to regulate the factors which maintain hypertension. Non-pharmacological treatments include lifestyle changes like decrease/halt in alcohol and cigarette consumption and if needed weight reduction with a more active lifestyle. Caffeine intake is also minimized as it increases the pulse rate. It is assessed that lifestyle interventions can reduce blood pressure by at least 10 mmHg in about 1 in 4 people with high blood pressure. (Association, 2009).Yet most of the times pharmacological interventions are used as they more affectively regulate blood pressure, there around 6 classes of pharmacological medications available which all perform at different levels to bring the blood pressure to normal. (Oparil Weber, Hypertension: A Companion to Brenner and Rectors The Kidney, 2005). ACE inhibitors: inhibits the assembly of angiotensin II, as a result, the vessels expand improving the blood flow. The tension in the circulation is regulated to normalcy by increase filtration by the kidneys. The decrease in levels of fluids also helps reduce blood pressure. This medication is used only when other medications are not working. Angiotensin-II receptor antagonists: they work in an analogous manner to ACE inhibitors. However, instead of stopping the production of angiotensin II, they prevent its action on the receptors. Again vessels are able to expand, improving blood flow and reducing blood pressure. Beta-blockers block the effects of sympathetic nervous system and the hormone epinephrine. This decreases the cardiac output as it relaxes the heart so the pulse rate is slowed down, lowering the blood pressure. Alpha-blockers: triggers the vessels to ease and expand. Giving them in combination with beta-blockers has a greater effect. Calcium-channel blockers: expand the arteries to reduce the muscle tension and also decrease the cardiac output by relaxing the heart muscles so it pumps more slowly, reducing blood pressure. Diuretics: help clear the unnecessary sodium and water thru kidneys, which decrease the osmotic pressure. They also relax the blood vessels reducing the strain on them. (Uren Rutherford, 2004) Treatment for hypertension is throughout ones life as hypertension is not curable; however, all the drug classes above help maintain the blood pressure quite well within the normal range. Summary The complexity of pathophysiologic mechanisms that lead to high blood pressure is such that selective antihypertensive treatment is rarely possible and a number of drugs and lifestyle changes are required to bring any change. Hypertension is widespread among middle-aged and elderly and controlling their blood pressure is a challenge we face as we still have not properly understood the underlying causes of primary/essential hypertension. (Oparil, Zaman, Calhoun, Pathogenesis of Hypertension, 2003). Bibliography Association, B. P. (2009, March 4). High Blood Pressure. Retrieved March 8, 2010, from Patients UK: http://www.patient.co.uk/health/High-Blood-Pressure-(Hypertension).htm Carretero, O. A., Opari, l. S. (2000, Jan 25). Essential hypertension. Part I: definition and aetiology. Circulation, 3(101), 329-335. Chobanian, A. V., Bakris, G. L., Black, H. R., Cushman, W. C., Green, L. A., Izzo, J. L., et al. (2003, December 1). Seventh Report of the Joint National Committee on Prevention, Detection, Evaluation, and Treatment of High Blood Pressure. Hypertension, 42, 1206-1252. Dreisbach, A. W., Sharma, S. (2010, Feb 19). Hypertension and Kidney. Retrieved March 8, 2010, from Emedicine: http://emedicine.medscape.com/article/241381-overview Haslam, D., James, W. (2005). Obesity. The Lancet, 366, 1197-1209. Khabunde, R. E. (2007, January 04). Primary (essential) hypertension. Retrieved March 8, 2010, from Cardiovascular Physiology Concepts: http://www.cvphysiology.com/Blood%20Pressure/BP024.htm McPhee, S. J., Papadakis, M. A., Tierney, L. M. (2008). Current Medical Diagnosis and Treatment 2008. United States: McGraw-Hill. Oparil, S., Weber, M. A. (2005). Hypertension: A Companion to Brenner and Rectors The Kidney (2nd ed.). United States: Elsevier. Oparil, S., Zaman, M. A., Calhoun, a. D. (2003). Pathogenesis of Hypertension. PHYSIOLOGY IN MEDICINE: A SERIES OF ARTICLES LINKING MEDICINE WITH SCIENCE, 761-776. Randal, l. O. (1991). Physiology and pathophysiology of hypertension. Journal of the Association for Academic Minority Physicians, 151-155. Rodriguez-Cruz, E. (2009, Nov 16). Hypertension. Retrieved March 8, 2010, from eMedicine: http://emedicine.medscape.com/article/889877-overview Supiano, M. A. (2001, Dec 2). Hypertension: Classification, Epidemiology, Diagnosis, Evaluation and Treatment. Retrieved March 8, 2010, from Armenian Health Network: http://www.health.am/hypertension/hypertension/#Pathophysiology Uren, N., Rutherford, D. (2004, Sept 24). High blood pressure (hypertension). Retrieved March 8, 2010, from Net Doctor: http://www.netdoctor.co.uk/diseases/facts/hypertension.htm Wikipedia. (2009, June 8). Arterial Pressure. Retrieved March 8, 2010, from Wikipedia: http://en.wikipedia.org/wiki/File:Arterial_pressure_diagram.png Williams, B. (2010, Feb 10). Secondary Hypertension. Retrieved March 8, 2010, from Hypertension: Overview, Causes, Symptoms, Risk factors, Treatment: http://www.health.am/hypertension/secondary-hypertension/

A General History of the Caribbean :: Caribbean History Culture Cultural Essays

A General History of the Caribbean When one undertakes an historical study, any success in the undertaking is arguably predicated on an understanding of the subject to be studied. Knowing the culture of a given people or region, the geography and climate of its habitation, the attitudes of the people and their current political comportment – all of these breathe life into the subject. It is this deepening familiarization that gives life to the historical figures and events of that subject. Perhaps nowhere is this preliminary requirement more necessary than when undertaking an historical study of the Caribbean islands. This archipelago of fifty small to moderate sized inhabited units that span a coarse 2,500 mile arc above the north side of Central and South America represent a very similar and yet very diverse group of people and cultures. Sharing a common climate, they contain a variety of terrain. Subjected to European invasion and conquest, then populated involuntarily by black African slaves under an oppressively dominating plantation system, the dissimilar timing of these very common circumstances lead to a curious variety of cultures. Conversely, the many languages spoken and the several cultural manifestations that are apparent in this region do not obliterate an essentially consistent ambience, a common rhythm that is unmistakably Caribbean. It is this contradiction, this sameness and yet difference, that makes a vigorous introductory approach such a compelling and, in itself, such a diversified component of this historical study. Even more important than the natural lure of anthropological or sociological considerations in their own right is the insufficiency of chronological political events alone to frame a general history of the Caribbean. Unlike many regions that experience clear, defining events and forces in a more or less cohesive fashion, periodization is difficult to construct for Caribbean history. Some pivotal events were confined to the particular island on which they occurred, while others had a regional impact. Furthermore, these latter sometimes did so with the uneven yet certain rhythm of the waves that come across the sea to lap the shores of the receptive neighboring island. This tendency yields a certain proclivity towards eclectic explanatory approaches. Three different yet mutually supportive approaches illustrate the utility of this eclecticism. The Caribbeanist Sidney Mintz employs the analytical approach of a social scientist to identify conditions of common description in his article "the Caribbean as a Socio-Cultural Area". Antonio Benitez-Rojo injects a decidedly cultural emphasis to his historical narrative of the region in his chapter "From the plantation to the Plantation", taken from his book The Repeating Island.

Nutritive Value of Vegetables Essay

All vegetables are valuable sources of nutrients. Some Vitamin A sources of vegetables are leafy green and bright orange vegetables. Cabbage, Tomatoes and potatoes are a good source of vitamin B. Iron and Calcium are the most important minerals. Leafy green vegetables are a good mineral source. Some vegetables contain carbohydrates- sugar like peas, sweet potatoes, corn and beans. Nutritive Value of Fruit Fruit of all kinds is valuable for the nutrients supplied. Everybody needs Vitamin and Mineral content that fruit contributes to be healthy. Because vitamin C can’t be stored in the body, a daily source of vitamin C is needed. Eating oranges, grapefruit, or mandarins will supply enough vitamin C for the day. The bright yellow and orange colour of any fruit indicates a rich source of vitamin A. Iron is the most important mineral available from fruit. Some of the greatest minerals in fruits are right under the skin so the skin should be eaten if possible. Storing Fresh Vegetables -Tuber vegetables should be stored in a cool, dark, airy place. Most will keep for 4-9 months long is stored in cool areas. -Remove tops of root vegetables before storing in a cool, moist place they will keep for several weeks if stored properly. -Store bulb vegetables uncovered in a dry airy place lasting several weeks – Stalk vegetables should be put in a plastic bag and kept in a cool area and used within a week -Leaf vegetables should be stored in a plastic bag in cool area and must only stayed good a few days. -All seed vegetables should be stored in the fridge -Mushrooms should be put in a paper bag in fridge and not in a plastic bag because the paper absorbs any moisture given off by the mushrooms, should be used within a week.

Philosophical Analysis Essay

â€Å"In the case of an ordinary illusion of the senses we often say: This object seems thus or so; but in reality it is thus †¦ (but) the seeming is opposed to the reality only in so far as the chance experience of one point of view gets contrasted with what would be, or might be, experienced from some larger, more rationally permanent, or more exclusive and uniting point of view. † Truth is the embodiment of reality; reality is the embodiment of experience. Yet, truth and reality are problematic concepts. Reality, when expressed in categorical terms, is in itself manifest-creating concept; that is, there is no clearly defined boundary of finding the essence of entities. In short, an attempt to define reality will result to more questions. An attempt to examine the source or basis of reality will inevitably result to ambiguity. What is the implication of this fact to truth? Truth also becomes a manifest-creating concept. Its basis is, from a vantage point, a derivation of reality (Kant, 1786/1926). Here, there is a need to mention two bases of truth and reality. For some philosophers, reality and truth are generally derived from sense experience. Aristotle once argued that the fundamental basis of reality is actual reference to existing objects. Here, reality is objective; truth is absolute. For other philosophers, rationality rather than sense experience is the formal basis of reality. Descartes, for example, argued that sense experiences often result to disconcerting assumptions of what is real and ought to be real (Descartes, 1637/1999). An example may suffice this point. Suppose an individual sees an oar in the water. From sense experience, the individual will interpret the phenomenon as genuine phenomenon. However, the individual perception of what is real is compounded by illusory assumption of what ought to be real. Descartes argued that the oar in the water, when rationality is used as means to discern truth, is a reflection of an actual oar. 2) â€Å"The best definition of truth from a logical standpoint is that which is fated to be ultimately accepted by all investigators †¦ (and not something to be identified with) some purely personal end, some profit upon which a particular individual has set his heart. † For many centuries, philosophers pondered on the best definition of truth. Perhaps, the most influential philosopher who developed a systematic approach in analyzing the nature of truth is Immanuel Kant. According to Kant, truth in categorical definition is a derivation of collective facts (Kant, 1786/1926). Kant argued that when a set of facts are accepted to be truth by rational individuals, then it is by definition, part of truth. Subsequent philosophers such as Whitehead and Russell expounded on the concept of truth. According to these philosophers, there exists a set of truths which in character is both relative and self-sufficient. Truth is relative because the discretion of a group of rational individuals is also relative. It is self-sufficient because its consequence is self-compelling. When presented to different individuals, a truth compels the individual to believe and accept it as true. What is the general consequence of these assumptions of truth? In essence, such assumptions reject the notion of absolute truth. Absolute truth defines an epistemological basis of reality; that is, reality bounded not by the laws of nature, but by the law of necessity. One can refer to this reality as Being, Divine entity, or God. However, absolute truth is not necessarily a definitive clause of a Divine entity. Absolute truth is assumed by some philosophers to be manifested in quintessential entities; entities which are purported to exist in reality. It may be argued that this interpretation of reality may be a personalistic interpretation of ends. In any case, it is possible to prove this assumption. References Descartes, Rene. 1637/1999. Discourse on the Method. London: London Publishing House. Kant, Immanuel. 1786/1926. The Critique of Pure Reason. New York: Macmillan Publishing Company.