Adsl Essays - Digital Electronics, Electronic Engineering

Adsl ADSL has been of interest to me for the past couple of years because it enables high-speed data on a single pair of local copper loop. It is phenomenal how it can allow voice and data to run concurrently over the same pair of wire. The article of choice for this report is in the subject of ADSL technology and the integration of the chip sets. Within these five pages the author examines the design methodology that Alcatel has used to develop their mixed signal ?chip set-asynchronous digital subscriber line (ADSL)? and the chip implementation environment. I believe that software emulations of hardware components are a more reliable and cheaper way to design devices. Although I have no experience with device designing, it is interesting to me how software emulation can facilitate the engineer with a fast editing environment. There are no soldering and complicated physical barriers involved. When the Alcatel design team tested the system in a worst-case scenario, restricting its range of voltage and temperature, the simulation of just 10 seconds of initialization could have taken days of simulation time. But Alcatel resorted to using an emulator for fast debugging. The emulator, in contrast with the simulation, would only take a few hours, not days. A very important aspect in new technology is to permit the ease for product enhancements. In a broad sense, many times there are new and more efficient ways of implementing a certain design after its final release. The author outlines in his conclusion that Alcatel completed a USB version of the ADSL digital chip. That explains the ease and no hassle install of my ADSL modem to my laptop. the writer outlines illustrates the Because of the flexibility of the chip bus architecture, other digital back ends can be integrated onto the chip. Bibliography Integrated System Design August 2000 ?Designing ADSL Chip Sets for Rapid Integration?

Shakespeares Tempest essays

Shakespeare's Tempest essays Life is a dreamlike play set upon a stage. The beauty of this life lies in the hour of peacethat of sweet slumber. William Shakespeare observes, "we are such stuff/ As dreams are made on, and our little life/ Is rounded with a sleep" (4.1.156-158). This implication serves to explain that life is but a dream, to perturb it then will only lead to misery. From the juxtaposition of many characters in The Tempest, nightmares and dreams come to life in everyday morality where moral characters emerge with a more successful life than those who lack virtue. By forcefully claiming a throne that did not rightfully belong to him, Antonio eventually offsets the hatred of Prosperos heart, leading to the awakening of his dream. On the uninhabited island that Prospero luckily comes ashore to after being cast to sea by Antonio, he remains satisfied with the conditions that even though he has no control of Milan, he still reigns over Miranda, Caliban, and Ariel. During these moments when Prospero is able to exert his power over others, he is happy... and at peace, which allows him to reside in the delicate dream of control. However, when Prospero first conceives that his brother is sailing by the island where he now inhabits, he mistakenly absorbs this incidence as some bountiful Fortune (1.2.176); he proclaims, By accident most strange [...] I find my zenith doth depend upon/ A most auspicious star, whose influence/ If now I court not, but omit, my fortunes/ Will ever after droop (1.2.176-183). Hence, Prospero awakens from his dream to cl aim what he considers a fortunate coincidence by acting on immoral means to seek revenge in the play. At that moment, Prosperos peaceful dream alters to the development of a nightmare by seeking revengea nightmare enveloping some turbulent awakening of his dream. From ambitions and wants, Shakespeare insists that one will awaken to a "Brim full of sorrow and dis...

Why did the Cold War End Essay Example | Topics and Well Written Essays - 1500 words

Why did the Cold War End - Essay Example It is called the Cold war mainly because there was no direct confrontation between these two world powers and instead, their confrontations tended to happen by proxy. They often provided the funding and weapons to rival groups in various countries, such as Vietnam and Korea, and these fought each other to see which ideology would come up supreme (Hitchens 2006, 276). It is to the credit of the leaders of these rival states that they did not come to an open confrontation with each other. If they had allowed their emotions to get away with them, then it would have been a disaster on a global scale. This is because both of these powers possessed nuclear weapons, and in case of a war, they would have been inevitably used. Despite all the rivalry between the Soviet Union and the United State, the Cold war suddenly ended in the late 1980s; this was mainly due to both long term and short-term issues, which took place in the Soviet Union, and these, are what will be discussed in this paper. The main reason why the Cold war ended is because the Soviet Union collapsed, and this happened due to various long and short-term circumstances. It has been suggested by certain scholars that the Soviet Union would have fallen much sooner than it did (Dobbs, 1993). This is because, from the time of Stalin’s rule onwards, the Soviet Union was not secure when it came to food supply. Stalin’s policy of the collectivization of agriculture, and the seizure of peasants’ property left the Soviet Union with insufficient grain reserves to feed its population. Where it had once been one of the largest exporters of grain in the world, it became one of its biggest importers. There was extremely little funding for the Soviet Union to use to export grain and there came a time when the state was virtually bankrupt. This would have manifested the fall of the Soviet system but

Problems and Risks Exposed to the Boiler Operators Assignment

Problems and Risks Exposed to the Boiler Operators - Assignment Example The people that are mostly subjected to these risks are the physical laborers employed as boiler operators and the study is based in Brazilian industries where the use of boilers is most common than in any other nation. The operators of the boilers are exposed to a number of health risks and problems that include: pains of different intensity in the body, muscle fatigue and diseases resulting from the heavy weight and exposure to heat. Moreover, the utilizing of the boiler implies various types of accidents such as burns, injuries, fires, and explosions; additionally, there is the increase of heart rate of the operator exposed to the excessive heat which occurs due to heat exchanges between the body and the environment leading to blood in the heart. A number of factors and parameters that are considered in the article; basically, the key aspects put first in this situation included the main risks of activities in the boiler which circled around the burns, pains and other injuries, factors that lead to the increased heart rate and how they can be eliminated, influence of thermal overload in the human body, and the physical workload where the boiler operators are forced to lift heavy loads due to the lack of proper mechanization which also has adverse effects that deteriorate the health especially when one puts into consideration that this takes place in a working condition that has excessive heat. Generally, the different factors were evaluated in a boiler where a thorough study was conducted; furthermore, there were a number of instruments that were used in the study i.e. a heart rate monitor, a digital chronometer, a wet-bulb globe thermometer (WBGT), a tape measure and a digital infrared camera.  

Understanding Research Essay Example | Topics and Well Written Essays - 750 words - 1

Understanding Research - Essay Example The entrepreneurs need to use their own mental model to interpret their business environment and culture of the area before they commit. For a startup to succeed in the long term, it must be able to scale up. Many studies have been conducted on startup success in the Tampa bay region to establish major factors that bring about their success and motivation to exist. The business environment and culture in the Tampa Bay is not conducive, the region lacks more high net worth individuals to aid in writing more seed-stage checks to their startups. There should be lots of money to encourage and grow startup culture in any given region. Tampa Bay has an emerging culture of innovation that tries to take hold as more individuals seek to pursue business dreams from scratch; however, the move is soon thwarted due to lack of startup money. Many businesses then transfer to other locations with conducive business culture and environment. The region needs to create a startup community so as to survive. This kind of research is an applied research; it aims at solving a practical problem. The research looks into the startup community of Tampa Bay in order to come up with a business culture that helps improve the human condition. The research aims at discovering some solution for the pressing practical problem, unfavorable startup community. It has mainly used observational research methods. Under this category, the research has specifically used case study. The research falls into this category because it has no clearly defined research question and problem. The research recognizes that even though the emerging startup community in the region exudes enthusiasm, it still has big concerns about its long-term viability as a serious hub for entrepreneurs. It maintains that businesses should embrace basic rules of entrepreneurship in order to succeed. Entrepreneurs need not regret

The Temporary Guide Base Engineering Essay

The Temporary Guide Base Engineering Essay After the drilling units anchors have been deployed on the new location the first item lowered is the temporary guide base (the TGB). This serves as a foundation for all the other subsea equipment that will follow, and as an anchorage for the guideline cables on which that equipment will be run down to the sea-bed. The TGB is a circular, octagonal or square, flat, steel frame of about 100 square feet in area which has compartments in which ballast materials can be placed. The unit alone usually weighs about four tons, but it is heavily weighted with bags of cement, barite or other heavy materials before being lowered to the sea bed on the end of a string of drill pipe. A special tool for releasing the TGB when it is in position is fitted to the drill pipe string, and this connects with a slot in the steel guidebase frame. On the underside of the frame four spikes project to dig into the sea bed and firmly anchor the unit. Four wires are attached to the edges of the TGB, and when it has been landed these are tensioned up and used for guiding other items of equipment down to their locations above the TGB. There are also two smaller lines for running TV cameras down for monitoring operations from the doghouse on the drill floor. The guide line tensioners are large cylinders, installed in the cellar deck on the rig, that contain pistons which are positioned by air pressure. The amount of tension required on the guide lines is simply set by adjusting the air pressure. In the centre of the TGB frame is a wide circular aperture with a funnel shape projecting above it into which the bottom of another frame the permanent guide base will fit. The drill bit will commence drilling and all subsequent downhole operations will be conducted through this aperture. 3.0 THE PERMANENT GUIDE BASE The permanent guide base (PGB) is another heavy steel frame, about 3 tons in weight and square in shape, that has a wide central aperture and a tall post on each corner through which the four guidelines run. The PGB serves as a landing seat for the wellhead and as a guide for drilling tools and the blow-out preventer stack which is eventually located above the wellhead. The posts are used to locate the stack, which has arrangements to accept them within its own frame. The PGB is run down the guide lines to connect with the TGB, and there is a funnel-shaped projection around the aperture on its underside that inserts into the TGBs funnel-shaped top aperture and ensures an accurate fit. Beyond about 400 m water depth the guidewire system does not work too well so for deepwater a guideline less system using a capture funnel system is utilised. 4.0 THE WELLHEAD/CASING HANGAR SYSTEM The wellhead is a large, cylindrical device housing several internal fittings called casing hangars that are designed to suspend the required number and sizes of casing and tubing strings that will be used in the well. The wellhead/casing hangar locates through the holes in the two guide bases and fits into the top of the conductor casing after this has been run. It projects above the PGB, and is designed to connect with the BOP stack which is later run above it. The Subsea Wellhead is the main structural component which supports the loads generated during drilling operations and during production Operations. It is connected (welded) to the inner conductor (18  ¾) and is locked into the outer conductor, which itself is attached to the guide base. Over recent years two connection profiles have become the most frequently used. These are proprietary designs known as Vetco H-4 and the Cameron Clamp Hub profiles. Most UK drilling rigs are equipped with a single high pressure stack, though two stack systems were previously in use, to provide a low pressure connection at the 20 and high pressure for the 13 5/8 inch casing. The three main functions of a wellhead can be considered as :- To provide a location for suspension of casing strings. Each of the casing strings which run up through the well are physically suspended within the wellhead housing. Should the well be used for production, the production tubing is additionally supported and locked in position in the wellhead via the tubing hanger. To provide Sealing and Pressure Containment This sealing and containment takes place on two distinct areas, between the well and the environment and to provide isolation from between the casing and downhole structures. During drilling operations a Blow Out Preventer (BOP) is installed on the wellhead at the base of the Marine Drilling Riser. The BOP is mandatory and used to protect the rig and the environment at the seabed level in case of gas kick from the well, to avoid a Blow Out. Allows the installation of Flow Control Equipment Should the well be converted from an appraisal well into a future production (NORMAL CASE) or water injection well, the subsea Xmas Tree can be installed to provide flow control from the well or from the injection line or manifold. . For subsea wells, the wellhead is supported through the 30 inch housing/conductor which is cemented into the first/primary soil formation. The 30 inch housing then supports the internal wellhead housing with the subsequent internal casing strings, each one supported via a casing hanger at the wellhead with a seal mechanism. The 30 inch housing supports the permanent guidebase which forms the main guidance mechanism for equipment being deployed subsea to the wellhead, during drilling and completion operations. Four Guide Posts and guide lines are used down to 400m. For deeper waters guide lines are not practical and funnel down or up systems are deployed. The BOP stack and subsequently the Xmas Tree are connected to the wellhead by a hydraulically operated connector. The primary environmental loading on the wellhead occurs during the drilling phase, when a high varying bending moment is transmitted through the riser onto wellhead housing and then to the 30 inch housing/casing/formation through current, wave loads and drilling vessel movement. The wellhead housing is locked into the 30 inch wellhead and loads on the wellhead are transmitted into the 30 inch conductor. 6.0 OVERVIEW OF SUBSEA OPTIONS; SHALLOW AND DEEP WATERS The challenges to subsea production in the future are considerable, with solutions required to the economical extraction of oil and gas from ever deeper waters in remote locations. Deep water options are illustrated in Figures 19 A 19 B. There are a number of options currently open in the movement of oil and gas from well to shore, and there are some limitations. Availability of investment capital to achieve a profit from the expectation of sales of gas or oil in a depressed and volatile market. The adverse effects of hydrostatic pressure on sensitive subsea equipment. The limiting effects of hydrostatic pressure on the means of maintenance and intervention with subsea equipment. Mechanical limitations on the type of host. The limiting factors of distance between well and host. Surface climatic conditions affecting the host annual storm patterns, ice, etc. Subsea production equipment used to be much more expensive than land-based equipment, adapted for use on offshore platforms. This was by way of specification, manufacturing quality, complexity etc., as well as the requirements for specialist tools with which to run the equipment. Nowadays costs of subsea developments are very competitive to platform based systems. This is due to more than 15 years of operational experience, fabrication simplification, and competition coupled with the use of more simple functional specifications. An additional feature of subsea production systems is their designed ability to operate in deepwater (diver less) areas. The development of deepwater systems, the installation and operational support systems using ROVs has been a major set in recent years. In earlier years such diver less systems were more expensive that diver assisted systems, but the advances now make then very similar in cost. In fact diver less operations using ROVs can be more cost effective than the use of very costly divers (requiring all the life support systems and complex DSV). The purpose of subsea wellhead is To support BOP and seal with well casing during drilling à ¢Ã¢â€š ¬Ã‚ ¢ To support and seal the subsea production tree à ¢Ã¢â€š ¬Ã‚ ¢ To support and seal the well casing à ¢Ã¢â€š ¬Ã‚ ¢ To support and seal the production tubing hanger The three main functions of a wellhead can be considered as; i)To provide a location for suspension of casing strings; Each of the casing strings which run up through the well are physically suspended within the wellhead housing. Should the well be used for production or injection, the tubing is additionally supported and locked in position in the wellhead via the tubing hanger (T.H.) when conventional dual bore trees are used. (ii)To provide Sealing and Pressure Containment; This sealing and containment takes place on two distinct areas, between the well and the environment and to provide isolation from between the casing and the down hole completion structures. During drilling operations a Blow Out Preventor (BOP) is installed on the wellhead at the base of the Marine Drilling Riser. The BOP is mandatory and used to protect the rig and the environment at the seabed level in case of gas kick from the well, to avoid a Blow Out and the riser is mandatory to return the drilling fluids, etcà ¢Ã¢â€š ¬Ã‚ ¦ to the rig. Refer to additional figures in Lecture L 5 B. (iii)Allows the installation of Flow Control Equipment; Should the well be converted from an appraisal well into a future production (NORMAL CASE) or water injection well (or gas injection well), the subsea Xmas Tree can be installed to provide production flow control from the well or into the well from the injection line or manifold. In these notes, the emphasis is on the subsea wells drilled from a semi submersible or a drill ship. In the southern North Sea and in water depths generally up to 100 m, jack-up rigs are also used. These provide a fixed platform from which to drill the wells and the well can be directly tied back into the rig. During drilling operations, a high pressure riser system connects the well with the jack-up and no subsea B O P system is necessary. For subsea wells, the wellhead is supported through the 30 housing / conductor which is cemented into the first / primary soil formation. The 30 housing then supports the internal wellhead housing with the subsequent internal casing strings. Each one is supported via a casing hanger at the wellhead and with a seal mechanism. The 30 housing supports the Permanent Guide Base which forms the main guidance mechanism for equipment being deployed subsea to the wellhead, during drilling, completion operations and work over operations. Four Guide Posts and guide lines are used down to 500m .For deeper waters, guide lines are not practical and other guidance systems are in use with exploration drilling now reaching -2800m. Refer to section 6. The BOP stack and subsequently the Xmas Tree are connected to the wellhead by an hydraulic operated collet connector. Over recent years two connection profiles have become the most frequently used. These are proprietary designs known as Vetco H-4 and the Cameron Clamp Hub profiles. Most UK drilling rigs are equipped with a single high pressure stack, though two stack systems were previously in use, to provide a low pressure connection at the 20 and high pressure for the 13 5/8 casings. A single connection of the BOP stack to the wellhead is the generally accepted method. The primary environmental loading on the wellhead occurs during the drilling phase, when a high varying bending moment is transmitted through the riser onto wellhead housing and then to the 30 housing/casing/formation through current, wave loads and drilling vessel movements. It is now common policy to run the two top joints of 1  ½ wall thickness joints of 30 to provide the resistance to the anticipated loads, when previously, only 1 casing was considered. The wellhead housing is locked into the 30 conductor and loads on the wellhead are transmitted into it. In addition to the drilling loads the wellhead may be subjected to impact and snagging loads associated with construction activities and accidental incidents such as fishing trawl board impacts and pull over forces. These loads are transmitted through the production tree into the wellhead connector and through into the 30 conductor. SUBSEA XMAS TREES FUNCTIONS; 7.1 General; The Xmas Tree is the primary flow control system for fluid flow from or into the well. The flows which can be considered include the following :- (a) Production, produced fluids from the oil/gas/condensate bearing formation pass-up through the well tubing and the Xmas Tree. (b) Injection, treated, inhibited seawater is pumped from the host facility into the well to provide pressure support for the reservoir. Gas injection/disposal excess gas is pumped into an adjacent reservoir for temporary storage or in limited cases, pressure maintenance. Oil production with Gas lift, gas is pumped from the host facility, through the annulus to subsurface injection points in the tubing. The inclusion of gas into the produced fluid reduces the column density to allow the reservoir pressure to flow the well. It is a flow boosting technique but with a low efficiency.

Not All Homeless People Are Crazy Essay -- Are the Homeless Crazy?, 20

One of life’s truly rarest treasures is human unselfish charity. The greatest thing in the world is mutual understanding and the endless feeling of appreciation of having a Home. A place that every one of us has to have: where a happy, loving family could be born, where love, support and acceptance, no matter what, always are, and where kindness, warmness, understanding are sincere and never go away. I think those of us who have homes have to count ourselves exceedingly fortunate, because we are blessed. Home--the roof and the walls--protects us from outside pressure, and gives strength and desire to live, which is the important moral base of a psychologically healthy human being. But what about those who don’t have it? Those who we call Homeless? Unfortunately, there is always a dark cloud in a blue sky, and in â€Å"Are the Homeless Crazy?† Jonathan Kozol questions the primary cause of homelessness in the United States. Are the homeless people really â€Å"pa ranoids of the street† and â€Å"among the most difficult to help?† When I read, â€Å"Are the Homeless Crazy?† I was amazed how clearly and skillfully the writer shows the reality, the conditions, and causes of homelessness through presenting an impressive array of statistics and showing the numbers of homeless children. The author writes: â€Å"nearly half the homeless are small children whose average age is six,† and â€Å"since 1968 the number of children living in poverty has grown by 3 million† (463). He uses statistics to show the level of Federal support for low-income housing, which â€Å"dropped from $30 billion (1980) to 7.5 billion (1988),† the average of rents, the declining welfare benefits for families with children, the loss of traditional jobs in industry, â€Å"2 million every year since 198... ...the attempts of homeless people to overcome the misery and destitution must be heard and evaluated. People need the response from society on their unbearable and intolerable life conditions. Kozol makes very clear for everybody that nothing would be solved until everyone will be understood. Let’s just imagine what if we were in those people’s places, without a place to live, and in total destitution. Are we going to ask for help? I think people cannot be degraded to the level of crazy beasts; they don’t have to demean themselves and their families to ask and to accept official charity. I strongly believe that they can desperately implore for Dei gratia but not for society to deign to help. It isn’t too much to desire to have a Home. And it is not a crime to have it. Works Cited Kozol, Jonathan. â€Å"Are the Homeless Crazy.† Yale Review, 1988.

Knowledge and bias

Today in history and science there is a lot of different bias that can be seen through everyday life. The question that I am trying to answer is if we can obtain knowledge despite bias and selection in history and science. There are three mall types of bias that we can see In today's world, firstly there Is cultural bias which has to do with blabs relating to culture, religion and personal practices and then there Is confirmation bias which is when someone is trying to prove a point and ignores all evidence which old contradict him.Both these types of bias can be found in history, however also in science there is the second type of bias when a scientist has an hypothesis and does experiments, selecting data which proves his idea. Despite what people say about selection, it is proven that selection helps us cut down all the knowledge that we obtained, otherwise there would be too much to analyze and Interpret at the same time. If all the huge amounts of knowledge were to be used there would be too much and it would defer us from the truth. Body:Both history and science since the beginning of time have contributed to help us a lot to develop both socially, economically and politically. History has taught us about the past and what must not be repeated in the future. Science on the other hand has managed to explain the way the world works and show us new technologies that have helped us for many years. However in both Science and history there will still always be someone that will contradict another person's point of view. It is for these many reasons that bias and selection are constantly present in our world today.In story there Is bias through deferent interpretations of documents and sources and In Science there Is selection when a scientist follows one specific method and doesn't History today, as I said before, is often based on cultural bias which can mostly be seen through political, religious and moral views that may contradict each other. When Historian s write new interpretations on history they do not all have the same cultural background or the same sources, so in general they all have different points of views that will obviously not be agreed on.In science we may question some experiments as we do not know if the scientist used the best possible method nor do we know if he used the best materials and variables to conduct his experiment and find the best possible result in the end. History is the study of evidence we have of the past and it is based on human affairs. However history has always been passed on from generation to generation by documents and recording.But when we think about this idea we may feel that the information that is passed from generation to generation cannot be totally reliable as we do not know for certain if the truth is ally stated in the documents or if the person who wrote the account Just wanted to censor the information to hide personal facts about certain events. History without bias and selection is hard to find as sources are already based on a certain point of view and we can only observe what that particular person believes.It is for this reason that so many books have been written in history as if there was no bias or selection we could Just write one big book with the same point of view. The bias in history can be double because we have the point of view of the witness and then the as of the historian. The worst about this idea is that it can really distort the facts so that we don't know what to believe. When referring to selection in history, it all depends on the historians analyzing different sources, he may have national or cultural bias that influenced his understanding.Some historians might believe one point of view whereas another one may believe the opposite. Selection is history is inevitable and a lot depends on what the historian has learnt in his life before he chooses the best possible sources. As for example if a historian learnt since the ginning of his life that communism was the best economic system, he will base his knowledge on what he has known for his whole life and be very critical of capitalism. How can we trust sources that we are not sure they are giving us real facts?In history there have always been hidden documents and hidden agendas in order to keep a country under control. On the other hand there is an argument that states that knowledge in history can be obtain despite bias and selection because history is about people and so if we know about their point of view, we know more about why wings happened and hoe people felt at that time. This is important but we have to be careful and try our best to find sources that show both sides of the information researched, it also important to know the cultural bias of a historian before we believe totally what he says.If we look at science today it has helped us a lot in the world as it has developed technology which has made our lives a lot easier. When referring to selection in science we notice that each time a new experiment is conducted the results may change a little. It is for that reason that scientist use specific methods, variables and materials in order to get almost the same results each time. It is in this idea that we see selection as scientists are forced to choose specific methods, variables and materials.But how can the scientist know that the methods he is using are the most efficient ones? In science topic bias can be seen as money from research. For example in Science the holes in the ozone layer have been a trend for many years in which scientists have told the people of the world to use more renewable energy. But how can we be sure that using renewable energy will really help us? Science is constantly changing due to new technologies that make experiments less selective and give a less biased point of view.It is in this idea that we can say that technology is the key to developing science and being more sure of the knowledge we get from it. For example a scientist from European background may have different interpretations of results in comparison with the scientist from Saudi Arabia due to their religious beliefs and cultural background. Conclusion: In conclusion I believe that science and history are both very important in human development and I believe that even with bias and selection we are able to attain knowledge..I believe that in history bias and selection cannot be ignored, and that they are a very important part of understanding the human and emotional side of what happened. However in science bias and selection will decrease when more technologies are developed in order to decrease this bias and selection, which will let scientists, conduct their experiments, and repeat them systematically to show they are free of bias.

Essay on Monopoly Economics and Demand Curve

Essay on Monopoly Economics and Demand Curve Essay on Monopoly: Economics and Demand Curve Question 3 : In what ways could a monopoly be (a) more efficient (b) less efficient than several firms competing against each other? Discuss this statement with the use of appropriate diagrams. Monopoly Characteristics of a monopoly Single seller No close substitutes for the product High barriers to entry – potential competitors can be prevented entering the industry through: economies of scale ownership of scarce resources legal barriers Effect of these characteristics Because the monopoly firm is the only supplier of the product, the monopoly is called a price maker and can influence the price by varying the amount of output it supplies to the market The demand curve is the downward sloping market demand curve compare with perfectly competitive firm’s demand curve Marginal revenue and elasticity Marginal revenue for a monopoly is related to the elasticity of demand for its good A profit maximising monopolist will never produce at an output in the inelastic range of its demand curve Why not? It could charge a higher price, produce less and earn a larger profit. Recall: Total Revenue = price x quantity Inelastic demand:  ­ price to  ­ TR The monopolist’s decision How much to produce and at what price? As with a perfectly competitive firm, a monopolist will employ the profit maximising rule: Choose the output level at which MR = MC Set the price based on demand for that level of output Profit maximisation under monopoly Barriers to entry allow the monopolist to protect its market from competition. Economic profits can be earned in the short-run AND long-run. Monopoly vs. perfect competition Perfect

Good Pandora Stations for Homework and Studying

Good Pandora Stations for Homework and Studying Almost everyone has a smartphone these days, and with it comes the ability to rock out to music whenever the mood strikes. Since Pandora Internet Radio is probably the most well-known place to grab free music on the go, and tons of students love to listen to music while they study, it only stands to reason that people might need some advice about choosing the best Pandora stations for studying and homework. Genre Pandora Stations When you log in to Pandora, you can choose an artist, a genre, or a song to get started. A musical genre is simply a style of music. Rock is a genre. So is punk. So is jazz. Pandoras site does have genres such as country and classical and hip-hop, and it also has a set of genres that have more to do with the overall emotional flavor of a collection of music rather than a particular genre. Pandora has a comprehensive and frequently updated genre list that you can browse to get started. Since researchers are at least agreed that quieter music without lyrics is the most conducive music to study to (barring no music at all), here are a few genre Pandora stations that may be ideal for you to study by. Some are instrumental only, and they cover a wide range of musical styles. Instrumentals Fifteen million listeners cant be all wrong: in Pandoras Instrumentals genre youll find everything from Dr. Dre to bluegrass to techno to jazz. These instrumentals are basically tracks from some of the top names in the business without the words to mess with your brain space; theres even a specific station called Instrumentals for studying. Quiet Tracks Willing to risk some lyrics? Pandora has three muted genres that might work for you. Pandoras Wind Down genre includes a collection of stations such as the Buddha Bar, with surreal lyrics, modal harmonies, and a slow-moving bass line. The Chill genre contains stations that are mostly acoustic playlists, with an emphasis on calm, sedate music. Styles range from coffeehouse-style folk music to pop music versions to classics, country, and indie channels. Pandoras Easy Listening channels include the light side of movie soundtracks, show tunes, cool jazz, solo piano, and light rock. New Age and Classical Pandoras New Age genre has several channels perfect for taking your anxiety over that deadline down a notch or two. Here youll find music suitable for relaxation, spa, ambient, and a whole range of subareas of New Age music types: instrumental, acoustic, solo piano, and beats. Just dont fall asleep. The Classical genre has a number of good channels that might trip your studying trigger: classical guitar, symphonies, renaissance, baroque. A  Classical for Studying Radio  channel promises a New Age aesthetic and an overall meditative sound. and a channel for Work might also do the ticket. In the End, Its All Between the Ears Its quite possible that some people do better with background music: people have different tastes, different study habits, and different ways of handling noise and distraction. Surveys of students themselves often say music helps them concentrate, keeps them company, alleviates boredom, and helps them learn faster. With free music sources like Pandora and Spotify, selecting the exact music you need might actually be a distraction in itself. Is Music While Studying Even a Good Idea? A few scientific studies have been conducted on the effect of music or other background noise on maintaining concentration. Most report that the best studying environment of all is silence. Since all music processing uses cognitive capacity, the theory goes, listening to music could impair task performance involving your brain. Most of the studies, however, have been relatively unsystematic and somewhat inconclusive, because so much depends on an individual students preferences and study habits, and the enormous number of musical genres available. If students study with music playing, they seem to perform better when the music is calm and they dont engage with the music. In other words, dont sing along, for example, or dont pick music that you either dont like or like too much. Your emotional response to music does add to the distraction value: music that is too stimulating or too sleep-inducing will also be a distraction. So: if you are the kind of student who needs music as a background to study, to act as white noise to keep other peoples voices or the radiators banging or personal worries out of your head, keep it low enough that you wont actually pay much attention to it. If you find yourself singing along, change the station. Sources Cassidy, Gianna, and Raymond A.R. MacDonald. The Effect of Background Music and Background Noise on the Task Performance of Introverts and Extraverts. Psychology of Music 35.3 (2007): 517-37. Print.Furnham, Adrian, and Lisa Strbac. Music Is as Distracting as Noise: The Differential Distraction of Background Music and Noise on the Cognitive Test Performance of Introverts and Extraverts. Ergonomics 45.3 (2002): 203-17. Print.Hallam, Susan, John Price, and Georgia Katsarou. The Effects of Background Music on Primary School Pupils Task Performance. Educational Studies 28.2 (2002): 111-22. Print.Kotsopoulou, Anastasia, and Susan Hallam. Age Differences in Listening to Music While Studying. 9th International Conference on Music Perception and Cognition. University of Bologna, 2006. Print.Kotsopoulou, Anastasia, and Susan Hallam. The Perceived Impact of Playing Music While Studying: Age and Cultural Differences. Educational Studies 36.4 (2010): 431-40. Print.Umzdas, Serpil. An Analysis of t he Academic Achievement of the Students Who Listen to Music While Studying. Educational Research and Reviews 10.6 (2015): 728-32. Print.

Sexuality Research Paper Example | Topics and Well Written Essays - 2750 words

Sexuality - Research Paper Example In recent years, diverse authors in critical applied linguistics have highlighted various dimensions of power inequalities in the exploration of social identities (e.g., Varney, 2002; Simon-Maeda, 2004). The contribution of this critical approach has highlighted the need to challenge the reproduction of unjust power relations. It has also suggested strategies for empowerment and social transformation. However, this approach has been limited, to some extent, in its applicability to issues of gender and sexuality due to the influence of social constructionism. Mohr (1992) defines a radical social constructionist perspective as one that posits human beings as "blank slates" whose behaviors are determined by the influence of environmental factors. Mohr criticizes what he sees as a disregard for evidence of the role of biological factors in matters of gender and of sexuality. However, an acute focus on biological dimensions also has significant limitations. Sears (1997) evokes this problem in his analysis of sexuality education in most Western educational contexts: "Relying heavily on biology and side-stepping issues of morality, teachers seldom employ the social sciences and the arts to explore the labyrinthine social structures of sexuality and gender" (pp. 275-276). Dimensions of morality, emotional depth, non-conscious processes, and individual imagination in gender and sexuality are sometimes lost in approaches where subjects seem to be determined either by biology or by their participation in language and culture. In his article on agency and identity issues surrounding sexuality, Phillips (1996) remarks that social constructionism is now "[T]he dominant paradigm, indeed orthodoxy, within gay and lesbian cultural studies" (p. 105). This paradigm has limited success in initiating dialogue on gender and sexuality issues with those who conceptualize and experience their own sex and sexuality as solid facts, rather than the cumulative product of socio-cultural acts (Mohr, 1992). While Nelson (1999) lauds queer theory's slogan of "acts not facts," it has to be noted that the reverse position-facts, not acts- seems to be the perspective of the majority of practitioners in education. Indeed, Phillips argues that many students also feel this way with regard to their sense of self for sexual identities. On the one hand, then, there is a body of literature in critical applied linguistics and in queer studies (e.g. Perrotti & Westheimer, 2001; Wyss, 2004) that asserts a social constructionist perspective on gender and sexuality identities. The basis for this approach is often taken from a type of psychoanalytic drives theory that accords primal positivity to all expressions of sexual desire. This dominant perspective in academic spheres seems to have little potential for changing the contrasting perspectives of the majority of participants in education, and in society at large, where attention to the moral dimension of sexuality issues is prevalent. This perspective finds no point of connection with discourses that specify few moral parameters in considering diverse issues of sexuality such as the age-of-consent for minors,

Moral views in the development of English law Essay

Moral views in the development of English law - Essay Example 123), which calls upon a legal community's moral judgment in determining what is aptly, the common good. Moreover, within the context of English Law, this relationship is further emphasised in the role that judges play in the development of precedents embodied within case law. Thus, it is within this context that this essay aims to analyse the significance that moral views have played, if they did, in the development of English Law. As this essay will argue, moral views have played a significant role in the development of English laws, due to the consideration that the legal community has given to the collective standards of morality accepted by the English society in creating legislations, statutes, and EC (European Council) Directives; and the discretion of judges in developing precedents in common law. To prove this point, the essay will begin by presenting the sources of English Law. It will then illustrate the manner that legislations, statutes, and EC Directives are reflective of societal perceptions of morality; and the extent of judges' discretion in case law. Lastly, the essay will illustrate the role morals have played in the development of English law, as well as the effect it has had the law's legal development, before ending with concluding statements. Under English Law, legal development proceeds through a number of instruments such as precedent through courts, legislation through the UK parliament, and as a result of European legislation through directives and decisions of the European Union court adopted by the government. What is apparent among these sources is the degree of discretionary power given both to the individual judges under common law in terms of interpretation, such that disputes can be resolved in a manner that can be either just or unjust; and to the legal community in terms of legislation, which is affected by the individual judgment of each member, as well - both of which will be discussed in following sections. What is imperative as this point, however, is the need to distinguish between morality and moral views, such that while morality refers to some conventional conception of right or wrong; moral views, which is the topic of this essay, refers to the individual standards adhered to by individual judges an d members of the parliament, as well as legislators of Community law. Thus, in order to illustrate that moral views are significant in the development of laws, one must simply illustrate that discretion is evident in the legal development of English Law, regardless if this legal development is moral or not. In this respect, this essay argues that the significance of moral views are evident in the way that English Law can both either be just or unjust, depending on the consensus of legislators' moral views regarding the common good; and the moral judgment of case law judges in interpreting these rules. English Law and the Common Good The Parliament consists of the Crown, the elected House of Common and the Unelected House of Lords. As Sir E. Coke claims, it is "the highest and most honourable and absolute Court of Justice in England,' and its 'jurisdiction' is 'so transcendent' that it can make and repeal laws on any subject matter and its honour and justice cannot be doubted" (cited in Walters 2003). This is also echoed by Austin, claiming that "the sovereign, or supreme legislator, is the author of all law"