Gas Compressor Essay Example for Free

Gas Compressor Essay A gas compressor is a mechanical device that increases the pressure of a gas by reducing its volume. Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As gases are compressible, the compressor also reduces the volume of a gas. Liquids are relatively incompressible, so the main action of a pump is to pressurize and transport liquids. Types of Compressors Centrifugal compressors Centrifugal compressors use a rotating disk or impeller in a shaped housing to force the gas to the rim of the impeller, increasing the velocity of the gas. A diffuser (divergent duct) section converts the velocity energy to pressure energy. They are primarily used for continuous, stationary service in industries such as oil refineries, chemical and petrochemical plants and natural gas processing plants.[1][2][3] Their application can be from 100 horse power (75 kW) to thousands of horsepower. With multiple staging, they can achieve extremely high output pressures greater than 10,000 psi (69 MPa). Many large snow-making operations (like ski resorts) use this type of compressor. They are also used in internal combustion engines as superchargers and turbochargers. Centrifugal compressors are used in small gas turbine engines or as the final compression stage of medium sized gas Diagonal or mixed-flow compressors Diagonal or mixed-flow compressors are similar to centrifugal compressors, but have a radial and axial velocity component at the exit from the rotor. The diffuser is often used to turn diagonal flow to the axial direction. The diagonal compressor has a lower diameter diffuser than the equivalent centrifugal compressor. Axial-flow compressors Axial-flow compressors are dynamic rotating compressors that use arrays of fan-like airfoils to progressively compress the working fluid. They are used where there is a requirement for a high flow rate or a compact design. The arrays of airfoils are set in rows, usually as pairs: one rotating and one stationary. The rotating airfoils, also known as blades or rotors, accelerate the fluid. The stationary airfoils, also known as stators or vanes, decelerate and redirect the flow direction of the fluid, preparing it for the rotor blades of the next stage.[1] Axial compressors are almost always multi-staged, with the cross-sectional area of the gas passage diminishing along the compressor to maintain an optimum axial Mach number. Beyond about 5 stages or a 4:1 design pressure ratio, variable geometry is normally used to improve operation. Axial compressors can have high efficiencies; around 90% polytropic at their design conditions. However, they are relatively expensive, requiring a large number of components, tight tolerances and high quality materials. Axial-flow compressors can be found in medium to large gas turbine engines, in natural gas pumping stations, and within certain chemical plants. Reciprocating compressors Reciprocating compressors use pistons driven by a crankshaft. They can be either stationary or portable, can be single or multi-staged, and can be driven by electric motors or internal combustion engines.[1][4][5] Small reciprocating compressors from 5 to 30 horsepower (hp) are commonly seen in automotive applications and are typically for intermittent duty. Larger reciprocating compressors well over 1,000 hp (750 kW) are commonly found in large industrial and petroleum applications. Discharge pressures can range from low pressure to very high pressure (18000 psi or 180 MPa). In certain applications, such as air compression, multi-stage double-acting compressors are said to be the most efficient compressors available, and are typically larger, and more costly than comparable rotary units. [6] Another type of reciprocating compressor is the swash plate compressor, which uses pistons which are moved by a swash plate mounted on a shaft.

The oldest forms of energy

The oldest forms of energy 1 Introduction: Solar Energy Solar energy is one of the oldest forms of energy on the planet. Rays emitted from the sun are responsible for sustaining all life forms on the planet. Solar energy uses the sun as a source of heat by concentrating the heat via various methods and using those methods to channel through a heat engine and produce power. Because of this, solar thermal power generation is very much like traditional forms of power generation due to the combustion of fossil fuels, which also need the heat engines as a catalyst for the conversion into energy. It is always renewable and will never be exhausted as long as the planet and sun are present. However, the initial cost of startup for the heat engines is expensive, but over time the savings actually outweigh the initial startup fees, making this a significant choice in promoting a cleaner option for energy usage (SOLAR ENERGY n.d.). This is not a new technique. Although it is documented that the first patent for a solar collection device was given to Germany in 1907, the first real effort to actually use the sun as a heat source did not begin until the infamous oil crises of the 1970s. Even after the first plants were constructed in California during the 1980s, the funding for solar energy development dried up due to the fact cheaper methods could be found, although some of them might not be as environmentally friendly (Poullikkas 2009). Because of the global warming crisis issue during the past several years combined with insanely erratic oil and gas prices, this method of energy is now being revisited as a potential means to help meet the needs of the current energy crisis. There have recently been several proposed projects and there is a strong possibility that solar energy can finally become mainstream as a renewable energy resource, along with wind, water, and solar photovoltaic technologies (Poullikkas 2009). 2: Review of Article Andreas Poullikkas (2009) investigated the economic feasibility of the installation of a parabolic trough solar thermal system for energy generation throughout the Mediterranean region. In his article, Economic analysis of power generation from parabolic trough solar thermal plants for the Mediterranean region- A case study for the island of Cyprus, all variables concerning the potential for Cyprus, as well as all of the available data pertinent to renewable energy sources dealing with the policy of the Cyprus government were taken into account. A method of cost-analysis was used to show the differences between energy output with and without the solar plants and also to show the differences in carbon dioxide level output and fossil fuel emissions. The area of Cyprus was chosen as a research site due to the fact there are no hydrocarbon energy sources and it is almost one hundred percent dependent on imported fossil fuels. The solar energy in the area is used mostly for the heating of water. Current estimates show about 90% of the homes, 80% of the apartments, and 50% of the hotels have solar-water heating systems, thus causing Cyprus to actually be the first country in the world with the most installed solar collectors per person (Cyprus Institute of Energy 2009). In order to fully understand the rationale behind the study, we must understand the different types of solar energy available. There are two major markets for solar energy, the photovoltaic and the solar thermal. The solar thermal market actually uses the heat emitted from the sun to heat water or generate power. The photovoltaic market consists of solar cells which use the properties of different materials to change sunlight into electricity (Poullikkas 2009). The three forms of solar radiation systems currently available are parabolic trough systems, solar tower systems, and solar dish systems. For the purpose of this article, we will concentrate on the parabolic trough systems and the cost effectiveness of using the systems in the Cyprus area. When many of these parabolic troughs are lined together, it forms a power plant, which then is responsible for holding the heating fluid inside the pipes, moving it along the range of pipes into a generator to produce the electricity, which is the end product. The process continues in a cycle as long as there is solar power from which to collect the heating fluid to store inside the trough pipes. The significant drawback for this type of energy production is that the troughs are large in physical size and expensive, thus having an impact on the overall initial economics of the plant (Garcia-Rodrigueza and Blanco-Galvezb 2007). The most important consideration for a solar thermal power plant is the land mass required to hold all of the equipment for sufficient energy production. There is little evidence due to under usage of this solar technology to make an educated guess at the land space required for such a plant to be constructed (Poullikkas 2009). The requirements for the amount of land needed, as researchers currently estimate, depends on the amount of sunlight potential as well as the amount of integrated thermal storage. Current numbers figure a space of approximately 25m/kW if there is no thermal storage integration (Poullikkas 2009). Researchers also believe the electricity produced from a parabolic solar thermal power plan is dependent on the amount of sunlight as well as the number of hours the plant is in operation and the degree of thermal storage. The research conducted in this article shows a direct proportion in the increase of solar energy collection with an increase of the size and number of plant troughs. Therefore, the bigger the plant, the more electricity it will produce. After research was completed and figures were calculated via a parametric cost-benefit analysis, it was decided that, overall, the installation of a solar thermal system for the Mediterranean region would be profitable and economically feasible, but only under certain circumstances. Depending on the physical size of the plant, how much storage capacity is available, the initial startup cost, and the costs involved with purchasing land would all have to be factored in with each separate situation. Thus, there is no standard answer fo r the world (Poullikkas 2009). 3: What the Future Holds The best model of solar plant would include building based on the parabolic troughs, but beside a combined cycle power plant, which would be called an integrated solar combined cycle plant. This type of configuration would burn natural gas to produce electricity. The heat from the turbine exhaust would be fed into a heat boiler and would generate steam to drive the steam generator portion of the plant. Heat from solar energy being collected would be used to help supplement the heat from the turbine exhaust and would increase the output from the steam turbine section. There actually are plants being built in Morocco, Algeria and Egypt which rely on this integrated electrical technology to produce greater masses of electricity, yet decrease the emissions of fossil fuels and carbon dioxide output (Promotion and consolidation of all RTD activities for renewable distributed generation technologies in the Mediterranean region 2009). There are actually a minimal number of solar thermal power plans both under construction and already in operation around the world (Concentrating solar power for the Mediterranean region 2009). The Solar Electric Generating System, which contains nine solar power plants, is located in the Mohave Desert in California. The energy from solar power is utilized at night from the burning of natural gas, but about ninety percent of electricity from this plant is directly produced from the sun. Nevada Solar One is located in El Dorado Valley, Nevada, and is based on the parabolic trough technology discussed earlier in this article. There is a gas heater for back -up production in the case of solar energy not being sufficient to meet the demand. PS10 is based on solar tower technology and is located in Sanlucar de Mayor, Spain. It is the first solar tower plant to begin commercialization of electrical generation in the world (Concentrating solar power for the Mediterranean region 2009). Andasol 1 and Andasol 2 are solar thermal plants which are identical in physical appearance and operation. They are scheduled to begin operations soon and will be Europes first solar thermal parabolic trough power plants. Solnova 1 is also under construction and is located in Sanlucar de Mayor, Spain. It, too, is based upon the parabolic trough technology. There are other solar energy projects underway. In the field of photovoltaic research and development, new materials will be made and altered to further enhance the emission rays of the sunlight in order to get the most energy from solar light possible. It is speculated that a 10 x 15 mile area of desert land could actually provide citizens with over 20,000 megawatts of power. For this United States, this is a positive idea. It could potentially mean providing an area of 100 miles on each side of this desert with photovoltaic solar power. This would drastically cut emissions and harm to the environment (Solar History Timeline: The Future 2006). 4: Discussion Solar energy and other renewable resources are needed at this very moment in order to cut greenhouse emissions and help with the general health of the environment and its people. However, based on the above article, it seems there is much more research and investigation to do. The research done thus far has been positive for the most part, but cost analysis is a significant factor in the decision making process. Many smaller countries are not going to be able to afford the extra capital in order to help their corner of the Earth, even if they have all of the right conditions. It will be up to the world leaders of more developed countries such as Europe, the United States, and others, to help contribute to this globalisation process. Poullikkas article does indeed give the public a good representation of the various types of solar power systems available to us and how each would be effective under our own unique set of conditions. What the article seems to fall short on, though, is a definite answer. Apparently, at this point in time, there is not one. There are only ongoing research studies and various solar power models in different parts of the world demonstrating how the generation of electricity actually would benefit society in a cleaner and more productive way. Perhaps in the next decade research will have come much farther and there will be many other ways renewable resources could be used to meet the energy demands of our growing world. References Concentrating solar power for the Mediterranean region. 2009. http://www.desertec.org (accessed December 31, 2009). Cyprus Institute of Energy. 2009. http://www.cie.org.cy (accessed December 31, 2009). Garcia-Rodrigueza, L, and J Blanco-Galvezb. Solar-heated Rankine cycles for water and electricity production: POWERSOL project. Desalination, 2007: 311-319. Poullikkas, Andreas. Economic analysis of power generation from parabolic trough solar thermal plants for the Mediterranean Region- A case study for the island of Cyprus. Renewable and Sustanainable Energy Reviews, 2009: 2474-2484. Promotion and consolidation of all RTD activities for renewable distributed generation technologies in the Mediterranean region. 2009. http://www.distres.eu (accessed December 31, 2009). SOLAR ENERGY. http://www.history.rochester.edu/class/solar/solar.htm (accessed December 31, 2009). Solar History Timeline: The Future. January 5, 2006. http://www1.eere.energy.gov/solar/solar_time_future.html (accessed December 31, 2009).

Nathaniel Hawthorne Symbolism

Nathaniel Hawthorne Symbolism The Mastery of Symbolism in the Works of Nathaniel Hawthorne. Nathaniel Hawthorne, one of the most influential American Romantic authors of the nineteenth century, was born Nathaniel Hathorne on July 4th, 1804 in Salem, Massachusetts. Nathaniel found interest in reading and writing as a young child and continued his interest well into his late teenage years when he began attending Bowdoin College. While in college, Hawthorne befriended Henry Wadworth Longfellow, a fellow Romantic author of the nineteenth century. Nathaniel Hawthorne changed his surname shortly after graduating from college from Hathorne to Hawthorne. The change is speculated to have been due to Hawthorne tracing his familys lineage back to John Hathorne, a great-grandfather of Hawthorne who was one of the judges involved in the sentencing of many women during the Salem Witch Trials. Out of embarrassment and superstitious of a curse upon the Hathorne family name, Hawthorne added the w to his surname. During Hawthornes mid-twenties and early thirties, he wrote in silence in the family room of his home. It was during this time Hawthorne practiced his craft for writing and spent a great amount of time perfecting his writing. Furthermore, for a short time in Hawthornes life, he joined a transcendentalist utopian society called Brook Farm, but he soon became dissatisfied with its lifestyle and left. The Brook Farm experience, along with his time spent tracing his lineage and time spent alone in contemplative writing, influenced Nathaniel Hawthornes philosophy and writing style, and lead Hawthorne to become one of the most well known authors of the American Romanticism literary movement. Nathaniel Hawthornes philosophy and writing style is a part of the literature style of American Romanticism. Considered the first illustration of American literary genius by Jennifer Hurley, book editor of American Romanticism, the literature of American Romanticism was written between the late 1830s and 1861, right before the rise of the Civil War. American Romantics, like Hawthorne, were unified by a concern with the internal world, the world of the psyche, as explained by Hurley on page twelve. Hawthornes aspect of American Romanticism exemplified the desire to explicate the qualities of human nature, such as its individuality, imagination, and intuition. Hawthorne, like other Romantics, explored the individuals isolation from society by providing complex psychological portraits of his protagonists (Hurley 12). While the United States of America was unstable, transforming from agrarianism to industrialism and political turmoil being at its peak during the nineteenth century, Roman tics, such as Hawthorne, found stability in seeking out the peace, beauty, and simplicity of nature and its relation to humankind. Hawthornes aspect of Romanticism was concerned with the psychological and symbolical analysis of certain types of human character and moral situations. Hawthorne extensively uses the literary technique of symbolism to convey an idea to his audience. Symbolism was a popular literary device of Romantics, where an object represented an idea. Symbols could have been a word, place, character, or any other object in which a meaning extended beyond the items literal context. Symbolism is a technique of the Romantics that has continued to be a popular literary device, and is a broad category in which allegory, a specialty of Hawthornes writing technique, is under its hierarchy. Hawthorne drew upon his personal and cultural history to create his intensely symbolic works that investigated the depths of the national American character. The symbolism of his works focused on isolation and guilt of the individual, the uncertainties of good and evil, and the continual hold of the past on the present. Hawthorne focused on his Calvinist lineage and Americas Calvinist ideological past, as well, in hopes of coming to terms and making sense of it. Hawt horne was deeply fascinated by the shifting and treacherous nature of the Puritan lifestyle, as explained by David Morse, author of American Romanticism: From Cooper to Hawthorne. The Puritans were endlessly attentive for symbolism in their daily lives. The Puritans clothing, gesture, behavior, languageà ¢Ã¢â€š ¬Ã‚ ¦all had their meaning which must be deciphered (Morse 182). Hawthornes writing is full of symbolic characters, settings, and objects. Hawthornes characters and settings are not always actually important for what they are, but for what they exemplify. Hawthornes audience finds the meanings of his symbols as they grow among his characters efforts to tell the audience what the symbols represent. Hawthorne uses the development of events in different settings to convey the meanings of his symbols as well. Hawthornes genius was in his technique of developing the symbolism of the story via the characters and events because Hawthorne, by intention, makes the characters and their actions the direct allegorists instead of the narrator of the narrative himself. Hawthornes genius is also in his efficiency to make his symbols so commonly placed and natural that they go overlooked. The meanings conveyed by these symbols become more effective when placed so naturally, they conceal themselves because it requires deeper intellectual and intrinsic thought on t he behalf of the reader. One of Hawthornes least recognized works came from his publication of his short story collection Twice-Told Tales, published in 1837. The short story The Hollow of the Three Hills is one unfamiliar to most. Summarized by Gary L. Pullman, author of The Hollow of the Three Hills: Hell on Earth, as: A young woman who suffers from an untimely blight rendezvous at an appointed hour and place with a withered, old hag (a witch) in the circular hollow situated in the center of three hills, having come to the crone to learn what has become of the husband and daughter whom the young woman abandoned years before. Their fate was intimately bound at one time, she concedes, although they are cut off forever from one another now. The witch, reminding the young woman that their time together is short (there is but a short hour that we may tarry here) and directing her to kneel and lay her head upon her knees, pulls her cloak over the young womans head, thus blinding her to the exterior world. The witch utters a profane prayer, by which she works a spell that enables the young woman to hear the voices of her parents and those of her family, whom she abandoned. Her parents, now old, lament the shame and affliction her desertion of her family has brought them. The witch tells the young woman th at her parents are weary and lonesome. Next, her husband speaks from within the confines of a mental institution, complaining of his wifes perfidy and of a wife who had broken her holiest vows, of a home and heart made desolate. Apparently, his wifes desertion of him and their daughter has caused him to lose his mind. The young woman lifts her head, replying to the witchs question as to whether it seems likely that there could be such merry times in a madhouse by saying there is mirth within its walls, but misery, misery without. The young woman longs to hear one more voice (presumably her daughters), and the witch obliges her, telling her to lay her head again upon her knees. The old woman begins to wave her spell again, but, as dusk deepens toward night, a funeral bell tolls, and a funeral procession approaches, several of the members of which revile the dead, pronouncing anathemas upon the deceased for her having abandoned her husband and daughter. When the witch shakes the motio nless young woman whose head rests upon her knees, to rouse her, she discovers that the young woman has died, and the witch says, Here has been a sweet hours sport! The young woman is portrayed as having left her loved ones because of an unforgivable dishonor or deceit she has committed, therefore, fled into nature, to loneliness and isolation. There she seeks comfort in the lap of the old witch. It is in this moment in the story the question of this allegorical story begins. Is the comfort the young woman seeks from the witch her damnation or salvation? Hawthorne explores an issue of critical summation, the greatest allegory of the story, of whether or not the witch is the womans salvation or damnation in the narrative. Hawthorne demonstrates, though, that the sole way for the reader, through the development of events and the characters courses of actions, to know is through his identification of the context that defines whether the witchs nature is of damnation or salvation for the young woman. To discover Hawthornes brilliance of symbolism in The Hollow of the Three Hills, the audience must only open its mind to understand how Hawthorne may be expressing a metaphor. For example, In those strange old times, when fantastic dreams and madmens reveries were realized among the actual circumstances of life, (The Hollow of the Three Hills 5), hints to the reader that the story is between the border of subjectivity, the inner world of the psyche, and objectivity, the outer world of nature. In another instance, when the witch says to the young lady, Here is our pleasant meeting come to pass according as thou hast desired. Say quickly what thou wouldst have of me, for here there is but a short hour that we may tarry here, the womans death is being foreshadowed. It is also suggested that the two meet because of a greater power which intertwines the fates of the young woman and the witch. Continuing symbolism in the story is found in the third paragraph of the narrative in the word sepulchre of the phrase, à ¢Ã¢â€š ¬Ã‚ ¦like a lamplight on the wall of a sepulchre, (The Hollow of the Hills 5) and again when the young womans head is rested on the knees of the witch and covered by the cloak, as described on page six of The Hollow of the Hills. Sepulchre indicates the young lady is near death in the presence of the witch. The darkness of the covering cloak symbolizes and foreshadows what the young ladys afterlife will be like without repentance of her sins. The darkness represents that she will not be reborn into life, but into death, physically and spiritually, and therefore both lives, her mortal and spiritual, will be claimed by damnation of sin. Toward the end of the narrative, Hawthornes symbolism is yet to cease. The golden skirts of day were yet lingering upon the hills, but deep shades obscured the hollow and the pool, as if sombre night were rising thence to overspread the world, (The Hollow of the Three Hills 8), is a representation of the life of the young woman as her life and what little happiness she attempted to retrieve from listening to the voices of her loved ones slips away and is overcome by death and misery. In the last moments of her life, the young woman, troubled with the guilt of abandoning her family, wonders the fate of her family. She seems to want to know their fate more to satisfy her curiosity than because she has come to a position of repentance. After all, the young lady accepts the services of a witch instead of seeking a reverend. By visiting the witch, she is dying on her knees in the spell of a witch rather than in prayer, and as a result, she dies in sin. Both of the womans lives, the physic al and spiritual, are in transgression. Furthermore, in death the young lady is not released of her sins, but is given an eternity of suffering and torment of what the witch pleases. The young woman is not only the servant of the witch, but ultimately the servant of the Power of Evil, the symbolical description of Satan. The bells at the end of the story make the reader aware, as if the bells were an alarm, that the story is a warning that the fate of the woman could happen to anyone. Hawthornes own religious beliefs come through in the story through expressing the need of repentance. The Hollow of the Three Hills examines human nature and its inevitability to fall short of perfection. According to Hawthorne, it is why man sins and must, therefore, repent of his imperfections. The symbolism of this tale related to the moral issues of his time period because while society was evolving into a modern industrial community, Hawthorne used his symbolism to express his opinion that society will unavoidably change, but for its cultural survival, the need for individual intuition and moral s must stay intact, or otherwise face great downfall, like the womans fate in the narrative, because societal perfection nor individual perfection is attainable. The symbolism within the story and allegorical message of the story is timeless because the symbols within the story and allegorical message of the story are still relevant today. American society will never outgrow the need for individuals to express intrinsic thought and need to stay in touch with ones morals and intuition because it is part of Americas philosophical and literary ancestry and one will always draw inspiration from Hawthornes symbolism. The timeless effects of Hawthornes symbols and allegories, along with his brilliance in his technique of developing the symbolism of the story via the characters and events and in his efficiency to make his symbols so commonly placed and natural that they go overlooked, are what make him the master of symbolism.

Society Versus the Individual in Gather Together in My Name :: Gather Together in My Name Essays

Society Versus the Individual in Gather Together in My Name "I reassured myself. I was helping my man. And, after all, there was nothing wrong with sex. I had no need for shame. Society dictated that sex was only licensed by marriage documents. Well, I didn't agree with that. Society is a conglomerate of human beings and that's just what I was. A human being." What we have here from Maya Angelou's novel, Gather Together in My Name, is the basic battle of society against the individual. Who wins? Well, according to Angelou, the answer is no one wins because everyone loses. It is this particular theme that needs to be addressed the most for two reasons. One is that Maya Angelou is one of the first black females to write about the "Ritas" of the world. The second, which is the one under investigation in this essay, is in reference to John Oliver Killens' criticism, "This is the story of a great heroine who knows the meaning of a struggle and never loses her pride or dignity. Indeed, her story makes me proud of the human race." "I had no idea what I was going to make of my life, but I had given a promise and found my innocence. I swore I'd never lose it again." Those words spoken by Rita at the end of the novel seem to support Killens' appraisal. However, while an eighteen-year-old mother, who has had numerous failures and even a greater number of affairs, may know "the meaning of a struggle" quite well, it is not so that she never loses her pride or dignity. In fact, it is doubtful as to whether or not, even by the stories end, she has yet found it. One may argue that she found her pride and dignity after she stopped smoking pot or after she stopped prostituting or after (about the fifth time) she promised herself she would get her life together. Unfortunately, none of these are valid, for Rita did not actually discontinue the use of pot, she just ran out. Rita sleeps with a drug addict named Troubadour Martin for the security she thought she would receive from him.

The Clinic :: essays research papers

The Clinic The Clinic is one of a series of Alex Delaware novels written by Jonathan Kellerman. Alex Delaware is a psychology doctor who is often employed by the Los Angeles Police Department (LAPD) to provide psychological profiles of both victims and killers. The book is 465 pages long. In this novel Dr. Delaware has been asked to provide a psychological profile of the victim of a particularly gruesome murder. The victim is Professor Hope Devane, who was found murdered under a large elm tree in front of her home. She was stabbed three times; once in the heart; once in the groin; and once in the back. The only clue was a bicycle track left at the scene. The murder had occurred three months ago and the case had been turned over to a different detective, Milo Sturgis, due to the lack of progress in solving the case. Milo Sturgis is a personal friend of Dr. Alex Delaware and requested his assistance. Very little was known about Professor Hope Devane and Detective Sturgis asked Dr. Delaware to compile a psychological profile of her. Professor Devane had written a male-bashing book entitled â€Å"Wolves and Sheep.† The book had created quite a controversy and Professor Devane had appeared on numerous talk shows. Dr. Delaware discovered that Professor Devane had set up a committee at the university where she was employed. This committee was established to assist students who claimed to have been sexually harassed by other students. There were only three cases handled by the committee before the head of the university dissolved it. Detective Sturgis and Dr. Delaware decide that it would be a good idea for Dr. Delaware to locate and interview both the members of the committee and the individuals involved in the three cases. There were only three members of the committee. The members were Professor Hope Devane, another professor at the university, and a student named Casey Locking. The professor who served on the committee told Dr. Delaware that she only sat in on two of the cases and then dropped out because she felt the committee was too radical. She also said that Professor Devane exhibited signs of someone who might have been abused herself. Dr. Delaware interviewed the students involved in the three cases, with the exception of one young woman who seemed terrified. This girl claimed to have been raped by a fellow student who was a drama major. The Clinic :: essays research papers The Clinic The Clinic is one of a series of Alex Delaware novels written by Jonathan Kellerman. Alex Delaware is a psychology doctor who is often employed by the Los Angeles Police Department (LAPD) to provide psychological profiles of both victims and killers. The book is 465 pages long. In this novel Dr. Delaware has been asked to provide a psychological profile of the victim of a particularly gruesome murder. The victim is Professor Hope Devane, who was found murdered under a large elm tree in front of her home. She was stabbed three times; once in the heart; once in the groin; and once in the back. The only clue was a bicycle track left at the scene. The murder had occurred three months ago and the case had been turned over to a different detective, Milo Sturgis, due to the lack of progress in solving the case. Milo Sturgis is a personal friend of Dr. Alex Delaware and requested his assistance. Very little was known about Professor Hope Devane and Detective Sturgis asked Dr. Delaware to compile a psychological profile of her. Professor Devane had written a male-bashing book entitled â€Å"Wolves and Sheep.† The book had created quite a controversy and Professor Devane had appeared on numerous talk shows. Dr. Delaware discovered that Professor Devane had set up a committee at the university where she was employed. This committee was established to assist students who claimed to have been sexually harassed by other students. There were only three cases handled by the committee before the head of the university dissolved it. Detective Sturgis and Dr. Delaware decide that it would be a good idea for Dr. Delaware to locate and interview both the members of the committee and the individuals involved in the three cases. There were only three members of the committee. The members were Professor Hope Devane, another professor at the university, and a student named Casey Locking. The professor who served on the committee told Dr. Delaware that she only sat in on two of the cases and then dropped out because she felt the committee was too radical. She also said that Professor Devane exhibited signs of someone who might have been abused herself. Dr. Delaware interviewed the students involved in the three cases, with the exception of one young woman who seemed terrified. This girl claimed to have been raped by a fellow student who was a drama major.

Black People and James Baldwin Essay

A. The theme of Baldwin’s essay is equality. He establishes this theme in his essay with the juxtaposition of a poor white man and a black man. In this essay, Baldwin speaks of how â€Å"People are continually pointing out to me the wretchedness of white people in order to console me for the wretchedness of blacks. † He says that people say that being black is not that bad because there are white people in the same situation and that there is still hope for the black because of people like Frank Sinatra and Sammy Davis but it is still not something â€Å"to be regarded with complacency† because the situations of Frank Sinatra and Sammy Davis are just rare. Equality in America at the time was possible with â€Å"determined will,† but still very rare. Another way James Baldwin established the theme of equality in this essay was when he mentioned the projects, more specifically, Riverton. Baldwin establishes this theme of equality through mentioning Riverton for Riverton was a physical representation of the inequality of blacks and whites in America back then. Baldwin said, â€Å"The people in Harlem know they are living there because white people do not think they are good enough to live anywhere else. † There was going to be no equality if people were told to live in certain places because of their color. Baldwin also makes this theme extremely clear when he says, â€Å"Negroes want to be treated like men. † B. The tone of the essay, Fifth Avenue, Uptown: A letter from Harlem by James Baldwin and the tone of the poem, Theme for English B by Langston Hughes are similar. They are similar for both authors show that there is hope for equality through the tone of each text. In the poem, Theme for English B, Hughes says â€Å"You are white — / yet a part of me, as I am a part of you. / That’s American. † Hughes expresses that although he may be the only black person in his class, he is still American like the rest of the class and should be considered equal. The tone of the essay and poem is different from the poem Incident by Countee Collen. This poem’s tone is complete opposite from the other poem and essay for Collen uses more of a doubtful tone. This poem is more about just being sad and bothered that blacks and whites are not equal instead of being hopeful for the equality of the two races that is soon to come like the other poem and essay. C. The perspectives on race in these texts are different than in To Kill a Mockingbird for in To Kill a Mockingbird, Atticus believes that there is good and bad in everyone and that nobody should be hated or claimed as all bad. In the book, Scout asks Atticus if it is okay to hate Hitler but Atticus says that you shouldn’t hate anybody, no matter how bad they are because there is a good side to them. This shows that Atticus’ perspective on race is different from the authors of the poems and essay for the authors believe that the whites are bad people because blacks and whites are not equal. While Atticus is just like the authors for he wants equality between black and whites, his perspective is different for he believes that this equality will be brought once the good side comes out of the white people.

Factors that contributed to the rise and development of sociology Essay

This essay serves to outline the factors that contributed to the rise of sociology and the latter`s development. In simply terms, sociology is the scientific study of the society and human behavior. The emergence of sociology traces back to the eighteenth century up to present day. Johnson (1998) suggests that in summary, the rise and development of sociology is based on political, economic, demographic, social and scientific changes. Ritzer (2008) asserts that the immediate cause for the beginning of sociology were political unrests especially the French Revolution that took over from the eighteenth century to the nineteenth century. The turmoil of the French Revolution spread throughout Europe and other nations. Kornblum (2008) suggests that the political upheavals were associated with tremendous social changes. The political revolutions demolished the old social order and monarchies. There was social chaos and disorder in societies that were resulted in by the political revolutions especially in the French society. Social theorists were attracted by these societal changes that had been a result of the political unrests hence giving rise to the discipline of sociology. Auguste Comte (1798-1857) who is credited for being the founding father of sociology was attracted by the social changes that had arose in reaction to the political revolutions. The French philosopher Comte attributed his focus of study to the French society so as to restore social order. This marked the beginning of sociology. Therefore, it is wise to claim that the European political upheavals resulted in social changes which attracted a number of social theorists such as Comte thereby leading to the rise of the scientific study of society. Industrial Revolutions also contributed to the rise of sociology as a discipline and had great impact to the rise of sociology (Schaefer, 2010). Industrial Revolution was a period of transformation whereby economic modes of production changed from feudalism to capitalism. The industrial transformations gave in the establishment of factories and industries resulting in the creation of employment and social changes such as urbanization in the urban settlements. According to Kornblum (2008) ,individuals flocked from rural to urban settlements for employment that had been brought by the capitalist system. This resulted in over population, poor sanitation, poor health and high death rates due to poor working conditions in the urban settlements where industrialization had emerged upon. The lower classes that served as laborers for the capitalists were oppressed and exploited by the capitalists in the sense that both adults and children worked for long hours and were given low wages. Classical sociologists such as Karl Marx (1818-1883) were attracted to the study of society due to the unfair system of the capitalist economy that had been brought by the industrial revolution in Europe. Marx condemned the industrial societies and gave alternative models of society such as socialist and communist societies. As a result, it is wise to assert that societal changes brought by the industrial revolutions in Europe were one of the basic foundations of sociology. The industrial revolutions also had an impact in the beginning of American sociology. Johnson (1998) suggests that industrialization resulted in the beginning of sociology in the United States of America. Masses migrated from Europe to the United States of America due to the industrialization that had arisen in the United States of America. Individuals came to the United States of America in search of employment opportunities. The urban settlements of America were overpopulated thereby causing America social theorists to begin the scientific study of the society. American sociologists began studying social changes that had been resulted by the industrial revolution such as racism, theft and interaction among societal individuals. Charles Horton Cooley is one of the American sociologists who began the study of the society due to social changes brought by industrialization. Industrialization in the United States of America contributed to the rise of sociology in the United States of America. The scientific study of the society rose also due to the growth of science in Europe (Ritzer, 2008). Sociology emerged during a period of time when natural sciences had great honor and prestige in the European society. Natural scientists were given respect and honor in the society because they were believed to be problem-solvers in the world through the use of natural sciences such as chemistry. The growth and superiority of the natural sciences stimulated social scientists also to develop a social science that would solve societal problems that had been brought by the industrial and political revolutions. The social scientists eagerness of creating a science of society resulted the beginning of sociology which is the scientific study of the society. Auguste Comte was influenced by the growth and prestige of the natural sciences because Comte coined the term sociology which relates to the scientific study of the society. Comte alson developed positivism which was based on the notion that natural scientific methodology of objective observation and experiments should also be applied when studying the society. In this regard, the growth and prestigious position of the natural sciences resulted in the emergence of sociology. Ritzer (2008) also suggests that the enlightenment era also led to the rise of sociology. Ritzer (2008) adds that the enlightenment era was a period of rema rkable intellectual development and change. The beginning of sociology was determined by enlightenment philosophers such as Charles Montenesqueu (1689-1755) and Jean Jacques Rousseau (1712-1718). The enlightenment thinkers denounced the existing status quo stating that humans should control the universe and destroy traditional beliefs. A few sociologists were inspired by the enlightenment thinkers such as Karl Marl who favored change as suggested by the enlightenment philosophers. However, most sociologists such as Emile Durkheim and Auguste Comte followed footsteps of De-Bonald and De-Maistre rejecting enlightenment views because they were conservative, they feared change. Consequently, sociology rose as response or reaction to enlightenment philosophers. According to Ritzer (2008), the rise of socialism contributed to the rise of sociology as a discipline. Socialism was based on the notion that property should be communally owned in a society. This gave the rise of sociology because a few sociologists used doctrines of socialism in studying the society and they believed that a socialist society would mark the end of social problems. Karl Marx was inspired by socialism in developing his sociological theories because he advocated change from the capitalist to the communist society model. However, socialism also developed sociological theory because most of the sociologists particularly functionalists were conservative and criticized the socialist doctrines. Thus sociology developed due to socialism because sociology hardly consisted solely the scientific study of the society but it also comprised criticisms of some theories specifically socialism. As a result, socialism contributed to the rise and development of sociology as highlighted above. The rise of feminism had an impact in sociology because feminist ideas developed sociological theory (Ritzer, 2008).Feminism is based on the idea that women are superior as well and are equal to men in the society. Feminism rose during the liberation era of modern Western History. Feminist sociologists include Harriet Martineau (1802-1876) who wrote a textbook entitled ‘Society in America’. Male sociologists such as Comte responded conservatively to the feminist ideas. Thus feminism developed sociology because sociology had been a male dominated discipline so feminism developed sociology by transforming the discipline from a male dominated to a balanced discipline of both males and females. According to Ritzer (2008), religion also led to the rise of sociology. Ritzer (2008) citing Hinkle and Hinkle (1905) says that many early sociologists came from different religious backgrounds and were actively involved. They brought to sociology the same religious objectives they had in their personal lives. For instance, Durkheim, Karl Marx and Max Weber wrote on religion in their personal perspectives. Therefore, religion also contributed to the rise of sociology. Johnson (1998) adds on that sociology started as an academic discipline in the United States of America. Sociology started as an academic discipline at Chicago School of thought, faculties and departments of sociology were set up at Chicago and sociology emerged as an academic disciple in the Western nations between the 1920s and 1970s. This attitude has spread all over the world even into African universities. It has been seen in the essay how multiple factors influence the rise and development of sociology as a discipline in the global environment. Be it as it may, the industrial revolutions had a greater impact than any other factors outlined in essay in contributing to the rise of sociology as a discipline. Since industrial revolutions had a greater impact in contributing to the rise and development of sociology, one cannot assume that the industrial revolutions can solely explain completely the origins and development of sociology. The factor of industrial revolutions can fully explain the rise and development of sociology with other factors outlined in essay. . REFERENCES Farganis, (2011). Readings in Social Theory: The Classic Tradition to Post Modernism (sixth edition). New York: McGraw-Hill. Johnson, W.A. (1998). The Sociology Student Writer`s Manual. USA: Prentice Hall Inc. Kornblum, W. (2008). Sociology: In A Changing World. Canada: Thompson Learning. Ritzer, G. (2008). Sociological Theory. New York: McGraw Hill. Schaefer, R. T. (2010). Sociology (twelveth edition). New York: .McGraw.