Dissertation Module Essay Example | Topics and Well Written Essays - 1000 words

Dissertation Module - Essay Example The most innovative work since the early 1990s, however, has been the development of understanding and elaboration of cognitive therapy approaches to the treatment of psychoses in urban and rural geographical regions. Thus, the interdisciplinary research occurs in the minds of the authors as well as in their interaction with each other. In this instance, the research, theory-building and clinical applications are a synthesis of individual and group effort. It is often difficult to know which comes first: theory, therapy or research. Theory serves as a roadmap for the clinician and informs the researcher regarding the important areas for investigation. On the other hand, the clinical works provides the data that generate the formulation of the theory and the ideas for research. Finally, research not only validates (or invalidates) the clinical and theoretical propositions but also provides new guidelines for therapy and ideas for theory building. The research will draw on the blend of theory, research and practice in developing the corpus of knowledge, formulating the basic assumptions, and adapting and refining appropriate strategies for the treatment of psychoses in urban and rural geographical regions. ... the corpus of knowledge, formulating the basic assumptions, and adapting and refining appropriate strategies for the treatment of psychoses in urban and rural geographical regions. The result will be a landmark in the evolution of cognitive therapy for psychoses. 8. Provide a brief outline of the research problem For centuries, it has been debated that the inordinateness of psychoses found in geographically urban areas (including city centres) is the consequence of social drift. Social drift is described as the resettlement of the populace suffering from various psychoses to the urban areas from outlying or rural geographical regions. The term psychosis includes disorders such as schizophrenia, schizoaffective and schizophreniform disorders, affective disorders where psychosis is present (e.g. in depression, mania, bipolar affective disorder) and delusional disorders. More recent research has shown, however, that there is an increased risk of psychosis within individuals born into an urban than rural areas (Warner, date, Jablensky, 1992). What is the causal agency for the increased risk of psychosis Is this due to increased rates of difficult births or obstetric complications, sunlight deprivation, environmental disturbances, ozone depletion or excesses of toxins Or, is there some other facto r yet to be studied An explanation of this phenomenon would contribute to our understanding of the causes of psychoses. 9. Provide a brief outline of the selected methodology and/or methods Here approach of this research is based on content analysis of previously conducted researches and studies. The data of our research will be based on previously conducted researches as mentioned above. In the data-gathering phase, the researcher will go through reading many studies of

Organization Theory and behavior-power and authority Essay Example for Free

Organization Theory and behavior-power and authority Essay Achievement of organizational objective depends on organization structure which is dynamic. Organization structure defines the flow of power and authority geared toward a particular course of action directed by organization’s objective. For organization structure to help to organization objective it is dependent on the employees. Employees operation are guided by the organization supervisors, whose their role is defined in the organization structures. Supervisor operations are dependent of power and authority which help to ensure things in an organization are done in the right way as well as achieving organization goals and objective. In organization management power and authority are very important as they help the organization to be able to direct organization employee toward organizational goals. Power and authority are dependent on the leadership model in an organization. Organizational managers are the leaders who employees report to hence their performance is dependent on the leadership offered by the manager. Achievement of organizational goal shall only be possible if power and authority are employed effectively. Authority and power helps the management to be able to create a productive culture through social process to guide employees’ capacity towards attaining organization goals and objectives. Power and authority helps the leader â€Å"†¦to create, maintain and improve a culture so that people will achieve objective (purpose) and continue to do so over time†¦Leadership in an organizations is a more specific process of influence since it involves goal that have been specified and can be measured or at least evaluated achieved only through employment of power and authority)† (Macdonald, Burke Stewart (2006) pp 80). To influence employees toward organization goal, management can employ three ways according to Macdonald, Burke Stewart (2006). That is force, manipulation and persuasion. Use of force by the management involves employment of force as well as real application of physical force to compel employees to work. Concept of force requires power to as it call for imposing one person against other employees, often referred to as coercion. Manipulation takes form of social distortion which direct requires the subject to do as they are told without asking questions. Manipulation is different force in that there is no coercion and employees are convinced that they are doing the right thing. Persuasion in an organization attempt to influence the employee to act in a certain way geared towards achieving organizational objectives without force or manipulation. It is dependent on will of the employee and mutual trust. Employment of force manipulation in an organization is dependent on the power and authority bestowed to the various leader or supervisors in the organizational operations. In an organization, authority is provided for by the organizational structure. Organizational structure grants an outline formal distribution of authority in an organization. Authority in an organization is largely provided for by formalization meaning standardized as well as rule and regulations that govern employee operations. Formalization defines the discretion in which an employee can act in his/her duties. â€Å"In an organization with high degrees of formalization, job descriptions and policies provide clear direction. Where formalization is low, employees have a great deal of freedom in deciding how to conduct their work†. In an organization different department exhibit different degree of formalization which may be base on the qualification of the employee to the organization affairs or rank of the employee. Authority is related to power in that it legitimizes supervisors to be able to direct and control subordinates to the intended course of action. Authority helps the supervisor to make decision geared towards organizational objective. Organization has three form of authority namely line authority, staff authority as well as team authority all distributed in the organizational structure. Line authority refers to straight supervisory form superior to subordinate organized such that it flows from top to the bottom of organization structure. Organization structure gives the chain of command which is unbroken line of command defining the decision, making process within an organization. Chain of command defining the authority of different personality in an organization helps employees to know who they are answerable to. This helps to avoid problem of duplication organization activities which comes due to more than one person assigning duties. Line of authority which is the basis of chain of command is linked to line department which are directly connected to production and sales of the organizational products. Examples of line department are marketing and production responsible for performance of the employees and reward. Staff authority as compared to line authority is more pegged to authority to advice base on the expertise and involves advising line managers. Employees help the line departments in coming up with the advices to be used for decision making but they lack authority to make the last decision. Staff supervision through suggestions made by line department decides on what is to be carried in the line department, coordinate as well as provide technical assistance. Team authority is executed by work teams responsible for daily operations in an organization. It comprises of groups of operating employees responsible for coordination of the organization operations. Team based structure as define under team authority in an organization organizes separate functions based on the overall organizational objectives. Authority is dependent to power such that for a supervisor to be able to get things done in accordance to the objectives of the organization power is required. â€Å"Everyone has power in one form or another and it is by exercising this power that organization get thing accomplished. Supervisors who are capable of achieving their objective independently of others are said to possess strength†. To be able to include people in the plan as well as organizational activities, supervisor requires power to get organizational things accomplished. Therefore, power is capability to apply influence in the organizational ahead of authority. This is gotten from the position as established by the organizational structure. In an organization a legitimate power bestowed to various leaders in an organization is established by individual position according to organizational hierarchy. Other forms of power include coercive power, reward power, expert power, referent power as well as information power. Supervisors’ power toward course of action depends on influence in the organization giving authority which may be centralized or decentralized. Centralization means the decision making power is concentrated on top of the management while in decentralization form of decision making authority is in lower level of employees. Relation of authority and power is that authority is the legitimate power of a supervisor to be able to direct employee to a certain course of action in accordance to organization goals. In a nutshell authority is a form of power delegated from the organization main authorities to subordinate.

My Educational Philosophy :: Philosophy of Education Teaching Teachers Essays

My Educational Philosophy My decision to become a teacher isn’t because of a lifelong wish or even a childhood dream. My educational experience during childhood left me, for many years, feeling very indifferent towards the teaching profession. I grew up in a very rural area and the schools that I attended didn’t attract the best of teachers. Although I always tested marginally above average on standardized tests, my grades were mediocre and my attitude concerning my education rated a big, fat â€Å"F†. I wasn’t challenged, inspired, or motivated by any of the teachers that I encountered during my years in school. Maybe there were those who tried to reach out to me but I wasn’t interested. Whatever the case, I graduated high school with no thought of ever becoming a teacher and with the attitude that education wasn’t important. Several years later, as my children started attending school, my view concerning teachers gradually started to change. Through volunteering and being at the school s quite often I began to see how wonderful teachers can be, as the majority of the teachers that I came in contact with seemed to be very passionate about their jobs. This was foreign to me—caring teachers! It wasn’t long before I was in awe of the profession and I wanted to do MY part. I wanted to contribute what I could in attempt to obliterate childhood educational experiences such as mine. After all, anyone can sit back and criticize teachers and the education system. But, if you are going to criticize you must be ready to get involved to create change. That is exactly what I decided to do. Another huge catalyst for me in this process was that I wanted to set an example for my children to follow. How could I challenge them to do their best and to pursue college when I was not a college grad uate myself? The answer I came up with was to re-enter the academic world after fourteen years of absence. As you can guess from my brief testimony, my philosophy concerning education is eclectic in nature and centers naturally around the aspects of self-esteem and motivation. These two words go hand in hand. If children feel good about themselves, and are encouraged, they will be motivated to do their best.

Christopher Columbus Hero or Villan

Aysha Imtiaz Should a man whose actions created a wave of genocide and killed thousands of innocent natives be considered a hero? Christopher Columbus found the Americas, but today he takes credit for discovering a new world. Native Americans had been living in civilizations across North and South America long before Columbus had â€Å"discovered† it. This journey has now ruined many of those cultivations as well as the citizens. With his expedition, he exposed countries to new disease and violence. His greed led him to deprive America of its natives and its resources.Thirdly, he also introduced Native Americans to slavery. These horrible monstrosities should be added to Columbus's reputation, which shows him to be a villain in American history. Christopher Columbus had evil intentions from the start of his voyage when he promised to repay Ferdinand, Spanish monarch and founder of Columbus's travels, with gold, spice, and other resources. When he first arrived in what he thoug ht was Asia, he quickly gathered the natives and introduced them to slavery. What he did was wrong and he shouldn’t be celebrated.Firstly, with his expedition he exposed countries to new disease and violence. Christopher Columbus brought explorers who had disease. This caused the Native Americans to get diseases as well. He was very violent and treated them in a cruel way. The poor Native Americans were trying to share their land and Columbus didn’t want to share even though it wasn’t his land. Whatever he did was wrong, and I feel ashamed that we celebrate a person who did nothing but torture people. We should be thankful to the Native Americans for finding America and proving to be very good people unlike Christopher Columbus.Secondly, Christopher Columbus‘s greed led him to deprive America of its natives and resources. Columbus deprived the Native Americans of everything they had. He took away their land and their crops. The Native Americans showed ever ything they knew about their advice. But Christopher Columbus uses them and took away their land. He killed them and literally kicked them out of their land. The Native Americans tried to retrieve what was rightfully theirs but Columbus had too much power. He was impossible to defeat.This left them no choice but to give away their land to Christopher Columbus. Thirdly, he also introduced slavery to the Native Americans. The Native Americans worked for nobody. But ever since Christopher Columbus came to their land they knew the feeling of working with no pay. They were treated unfairly and were beaten up if they did their work incorrectly. The Native Americans had to go through so much. They were punished unnecessarily and treated like humans. We all see Christopher Columbus as a hero but he is no one other than a villain.This information has taught me that Christopher Columbus was a horrible person people like him take credit for things they haven’t done. He brought disease a nd violence to the new land. Secondly, his greed left Native Americans with nothing. He even introduced slavery to them. In my eyes Christopher is nothing but a villain, because jealousy, greed and envy won’t get you very far in life, because you’ll always discontent and unhappy about yourself, your life and the people around you. If Columbus thought about that in 1492. Maybe the Native Americans wouldn’t have gone through all that torture.

Application of Colloids

Applications of Colloids| Colloids play a very important role in nature, in our daily life and in industry. Some of the important applications of colloids are discussed below. 1. Food stuffs and medicines:  Many of our food stuffs are colloidal in nature. Milk, butter, whipped cream, fruit jellies, ice cream, bread etc. are all colloidal in nature. For example, milk is an emulsion of butter fat in water, stabilized by milk protein (casein). Ice cream is a dispersion of colloidal ice particles in cream. Similarly, bread consists of air dispersed in baked dough.Colloidal medicines are more effective and are easily absorbed by the body system. Therefore a large number of pharmaceutical preparations are emulsions. Halibut-liver oil, cod-liver oil, skin ointments etc. are emulsions. Antibiotics such as penicillin, streptomycin etc. are usually injected in the body in colloidal form. Several metal sols are also used as medicines. 2. Purification of water:  In water works, water is usua lly purified by the addition of certain electrolytes such as potash alum, aluminium sulphate etc. This involves the phenomenon of coagulation.The impure water usually contains dispersed colloidal particles which cannot be removed by filtration. When potash alum is added to impure water, the negatively charged colloidal particles of impurities get coagulated by the action of Al3+  ions furnished by the alum and can be removed by filtration or decantation. 3. Sewage disposal:  Sewage water contains particles of dirt, mud etc. which are colloidal in nature and carry some electrical charge. These particles may be removed by using the phenomenon of electrophoresis.The sewage water is passed through a tunnel fitted with metallic electrodes and maintained at a high potential difference. The colloidal particles present in the sewage water migrate to the oppositely charged electrodes and get coagulated. This solves the problem of sewage disposal. Moreover, the rubbish matter obtained on account of the coagulation of colloidal dirt particles may be used as manure. | 4. Smoke precipitation:  Smoke is colloidal system and consists of electrically charged colloidal particles of carbon dispersed in air. As smoke is a big source of pollution.It is always desirable to precipitate it, i. e. , to remove colloidal carbon particles present in it. The removal of colloidal carbon particles from smoke can be effected by using the phenomenon of electrophoresis. This is achieved in an apparatus called Cottrell precipitator as shown in figure. Smoke is allowed to pass through a chamber having a number of metal plates attached to a metal wire connected to a source of high potential (20,000 to 70,000V). The electrically charged colloidal particles of carbon and dust get discharged when come in contact with the oppositely charged plates and fall down to the bottom.The clean hot air leaves the precipitator from an exit near the top. 5. Artificial rain:  Clouds are colloidal systems and consist of water vapour mixed with dust particles. The water molecules present in a cloud develop some electrical charge. Therefore, clouds can be made to rain by neutralizing the charge present on colloidal particles (water molecules). This type of rain is called artificial rain and may be carried out by spraying oppositely charged colloidal dust or sand particles over a cloud. This neutralizes the charge on water molecules and compels them to get coagulated, i. . to rain. 6. Rubber industry:  Latex obtained from rubber trees is an emulsion consisting of a dispersion of negatively charged rubber particles in water. In order to obtain rubber from latex, the latter is boiled when rubber particles get coagulated. The coagulated mass is vulcanized and sold as natural rubber. Rubber-plated articles can be prepared directly from latex by electrically depositing the negatively charged rubber particles over the article to be rubber-plated by making the article an anode in the rubber -plating bath. 7.Leather tanning:  During the tanning of leather, the positively charged colloidal particles of raw skin and hides are coagulated by the negatively charged tanning materials which include tannin and compounds of aluminium and chromium. On soaking hides in the solutions of tanning materials, the coagulation of negatively charged tanning materials takes place in the pores of hides and the latter get hardened. 8. Cleansing action of soaps:  Soaps solution is colloidal in nature and removes dirt and oil from clothes by forming water soluble emulsion as explained earlier. . Smoke screen:  In chemical warfare, smoke screens are generally used to hide the movement of troops. Smoke screens are the colloidal dispersions of very fine particles of titanium oxide in air. 10. Formation of delta:  When a river falls into the sea, extensive deposits of sand and clay are formed at the mouth of the river in the sea. Such deposits are called delta. The river water contains col loidal particles of sand and clay which carry negative charge. The sea water contains a number of positive ions such as Na+, Mg2+, Ca2+  ion etc.When the river water comes in contact with sea water, the negative charge present on colloidal sand and clay particles get neutralized by the positively charged ions (present in sea water) and they get coagulated. The coagulated sand and clay particles settle down and take the shape of delta in due course of time. 11. Blue colour of the sky:  The sky is the empty space around earth and as such has no colour. It appears blue due to the scattering of light by the colloidal dust particles present in air (Tyndall effect). 12. Preparation of Nano-materials:  Nano-materials which are used as catalyst are prepared by using reverse micelles. 3. Building roads:  Now a day, roads are built asphalt emulsified in water. This technique does not require the necessity of melting the asphalt. 14. Metallurgical operations:  Several metal ores are concentrated by froth floatation process. This process involves the treatment of the pulverized ore in emulsion of pine oil. What are the Applications of Colloids? Colloids play a very significant role in nature and in our daily life. Some of the important applications of colloids are discussed below: 1) Medicines: Medicines in colloidal form are easily adsorbed by the body tissues and hence are more effective. ) Sewage disposal: Colloidal particles of the dirt, mud etc. carry electric charge, hence when sewage water is passed through the plates kept at a high potential, the colloidal particles are coagulated due to electrophoresis and the suspended matter gets removed. 3) Purification of water: The precipitation of colloidal impurities present in water can be done by adding certain electrolytes like alum etc. the negatively charged colloidal particles of impurities get neutralized by the Al3+ ions and settle down and pure water can be decanted off. 4) Cleansing action of soap: Soap solution is colloidal in nature.It removes the dirt particles either by adsorption or by emulsifying the greasy matter sticking to the cloth. 5) Formation of Delta: River water contains charged colloidal particles of clay, sand and many other materials. Sea water is very big store house of a variety of electrolytes dissolved in it. As soon as river water comes in contact with sea water coagulate the suspended colloidal particles which ultimately settle down at the point of contact. Thus the level of the river bed rises. As a result, water adopts a different course and delta is formed in due course of time. ) Smoke precipitation: Smoke particles are actually electrically charged colloidal particles of carbon in the air. Precipitation of smoke particles is carried out by Cottrell precipitator which is based on the principle of electrophoresis. Smoke is allowed to pass through a chamber having a number of metal plates attached to a metal wire connected to a source of high potential. C harged particles of smoke get attracted by oppositely charge electrode get precipitated after losing their charge and the hot air passes out through the chimney.The dust particles are also removed in this process. Thus the nuisance of smoke in big industrial cities can be avoided. 7) Photography: A colloidal solution of silver bromide in gelatin is applied on glass plates or celluloid films or paper to from sensitive plates in photography. 8 ) Artificial rain: Artificial rain can be caused by spraying oppositely charged colloidal dust or sand particles over a cloud. The colloidal water particles present in the cloud will be neutralized and coagulate to from bigger water drops causing artificial rain. 9) Rubber industry:Latex is a colloidal solution of negatively charged rubber particles. From latex, rubber can be obtained by coagulation. Rubber plated articles are prepared by depositing negatively charged rubber particles over the article to be rubber plated by making that article a n anode in a rubber plating bath. 10) Smoke screen: In warfare smoke screens are used which are nothing but colloidal dispersion of certain substances in the air. 11) Other applications: a) Blue color of the sky is due to the scattering of light by colloidal dust particles in air (Tyndall effect).Similarly, sea water looks blue due to scattering of light by the colloidal impurities present in sea water. b) Tail of comets is seen as a Tyndall cone due to the scattering of light by the tiny solid particles left by the comet in its path. c) Blood is a colloidal solution and the stoppage of bleeding on applying ferric chloride solution is due to coagulation of blood forming a clot. Colloids-Chemistry and Applications What are Colloids ? In a true solution as sugar or salt in water, the solute particles are dispersed in the solvent as single molecules or ions.Thus the diameter of the dispersed particles ranges from 1A to 10 A. On the other hand, in a suspension as sand stirred into water , the dispersed particles are aggregates of millions of molecules. The diameter of these particles is of the order 2,000 A or more. Applications of Colloids Colloids play an important role in our daily life and industry. A knowledge of colloid chemistry is essential to understand some of the various natural phenomena around us. Colloids make up some of our modern products. A few of the important applications of colloids are listed below. (1) Foods:Many of our foods are colloidal in nature.Milk is an emulsion of butterfat in water protected by a protein, casein. Salad dressing, gelatin deserts, fruit jellies and whipped cream are other examples. Ice cream is a dispersion of ice in cream. Bread is a dispersion of air in baked dough. (2) Medicines: Colloidal medicines being finely divided, are more effective and are easily absorbed in our system. Halibut-liver oil and cod-liver that we take are, in fact, the emulsions of the respective oils in water. Many ointments for application to s kin consist of physiologically active components dissolved in oil and made into an emulsion with water.Antibiotics such as penicillin and streptomycin are produced in colloidal form suitable for injections. (3) Non-drip or thixotropic paints: All paints are colloidal dispersions of solid pigments in a liquid medium. The modern nondrip or thixotropic paints also contain long-chain polymers. At rest, the chains of molecules are coiled and entrap much dispersion medium. Thus the paint is a semisolid gel structure. When shearing stress is applied with a paint brush, the coiled molecules straighten and the entrapped medium is released. As soon as the brush is removed, the liquid paint reverts to the semisolid form.This renders the paint ‘non-drip’. (4) Electrical precipitation of smoke: The smoke coming from industrial plants is a colloidal dispersion of solid particles (carbon, arsenic compounds, cement dust) in air. It is a nuisance and pollutes the atmosphere. Therefore, before allowing the smoke to escape into air, it is treated by Cottrell Precipitator. The smoke is let past a series of sharp points charged to a high potential (20,000 to 70,000 V). The points discharge high velocity electrons that ionise molecules in air. Smoke particles adsorb these positive ions and become charged.The charged particles are attracted to the oppositely charged electrodes and get precipitated. The gases that leave the Cottrell precipitator are thus freed from smoke. In addition, valuable materials may be recovered from the precipitated smoke. For example, arsenic oxide is mainly recovered from the smelter smoke by this method. (5) Clarification of Municipal water: The municipal water obtained from natural sources often contains colloidal particles. The process of coagulation is used to remove these. The sol particles carry a negative charge.When aluminium sulphate (alum) is added to water, a gelatinous precipitate of hydrated aluminium hydroxide (floc) is formed, A l3+ + 3H2O —- Al(OH)3 + 3H+ Al(OH)3 + 4H2O + H+ —– Al(OH)3(H2O)4 The positively charged floc attracts to it negative sol particles which are coagulated. The floc along with the suspended matter comes down, leaving the water clear. (6) Artificial Kidney machine:  The human kidneys purify the blood by dialysis through natural membranes. The toxic waste  products such as urea and uric acid pass through the membranes, while colloidal-sized particles of  blood proteins (haemoglobin) are retained.Kidney failure, therefore, leads to death due to accumulation  of poisonous waste products in blood . Now-a-days, the patient’s blood can be cleansed by shunting  it into an ‘artificial kidney machine’. Here the impure blood is made to pass through a series of  cellophane tubes surrounded by a washing solution in water. The toxic waste chemicals (urea, uric  acid) diffuse across the tube walls into the washing solution. The purified blood is returned to the  patient. The use of artificial kidney machine saves the life of thousands of persons each year.The phenomenon of the scattering of light by the sol particles is called Tyndall effect. (7) Blue colour of the sky:  This is an application of Tyndall effect. The upper atmosphere contains colloidal dust or ice  particles dispersed in air. As the sun rays enter the atmosphere these strike the colloidal  particles. The particles absorb sunlight and scatter light of blue colour (4600–5100A). The light that  Ã‚  is incident at earth’s surface is considerably reddened due to the removal of most of the blue light in  the upper atmosphere.