Whether the Construction Industry Is the ‘Pillar’ Industry in Hong Kong?

BRE216ECONOMICS FOR CONSTRUCTION AND REAL ESTATE Kwan Tsz Him (11168188D) Kwan Cheuk Pui (11055717D) Cheng Ming Xian (11704592D) Introduction Although Hong Kong has less land, there are always construction projects happening everywhere in Hong Kong, for example, West Kowloon Cultural District development, Kwun Tong redevelopment project, etc. However, workers and capital involved in the construction industry have been decreasing.In this report, we will discuss whether the construction industry is the ‘pillar’ industry in Hong Kong and we disagree with it. Focused industries As proposed by the Government decades ago, there are four ‘pillar’ industries in Hong Kong, namely, financial services, trading and logistics, tourism and producer and professional services. They account for about 60% of GDP and nearly half of the total workforce, in which construction industry is counted in the producer and professional services.In the 21st century, the Government wants to look forward and follow the trend of technological and advanced world, they proposed another six new ‘pillar’ industries, concerning testing and certification, medical services, innovation technology, culture and creative industries, environmental industry and education services, in which construction industry is not counted in any ‘pillar’ industry and no longer treated as important by the Government. Features of local construction industry There are several features for local construction industry in Hong Kong, with dangerous working environment being the major one.Without doubt, accidents happen all the time in Hong Kong when you simply flip through the newspaper. Some of the accidents are inevitable while some happened due to carelessness. For example, the workers may not be aware of the safety regulations, accidents always happen while the workers do not obey the safety regulations as well as not to follow the working regulations. Besides, competiti on between overseas contractors is keen. Nowadays, a lot of construction projects in Hong Kong are outsourced to overseas contractors. It is because the technology is more advanced in overseas countries such as in Germany, the United States, France, etc.With reasonable price and advanced technology, the other countries sometimes are more competitive. Moreover, labor intensive is also the label of construction industry in Hong Kong. Limited land with high population is a characteristic for Hong Kong. Labor can be easily found, however, is only applicable in the past. This will be examined in the report later. Concerning the environment, pollution is in line with the construction industry to a large extent. Since construction work will inevitably pose noise, air and sometimes water pollution.The pollution extent depends on the scale of the project. Basically, the larger scale of a construction project, the greater the pollution will be resulted. Reasons of excluding construction indus try as pillar an industry in Hong Kong As mentioned before, the feature of labor intensive can only be described in old years due to the transformation of economy. In late 80s, the HKSAR has been transforming the whole economy from labor intensive industry to commercial industry which is defined as tertiary services as finance and accounting, investing, banking and so on.In such knowledge-based society, the unemployment rate for those with low education level could be especially higher. Also, there is no new blood to enter such industry. This can actually be explained by the above phenomenon. Nowadays, most of the workers are 50 years old or above and the industry faces the aging problem. As this cannot be fixed, construction industry will decline gradually. Nowadays, the opportunity of receiving proper education is higher, thus the citizens do not willing to enter to an industry with gloomy future. Diagram showing the percentage of population distribution in different working secto rsAs for the construction industry, we may see that the percentages are actually fluctuating throughout the years and increased from 5. 4% to 6. 8% in 1971 and 2006 respectively. Only a light increase in population is resulted and also, it just accounts for a little percentage. Frankly speaking, a lot of buildings are, nowadays, built for different uses for economic development and social settlement. However, the problem of aging of such industry is becoming more serious and we can barely see how the government has implemented any scheme to cope with such problem.Total building and construction output and annual percentage change (Census and Statistics Department) | Total construction as % of GNP| Current value| 2006| 25. 1| 14. 2| 2007| 23. 7| -0. 1| 2008| 21. 1| -15. 6| 2009| 13. 8| -44. 6| 2010| 9. 2| -35. 0| Direct and indirect employment construction (Census and Statistics Department) As the diagram above suggests that the direct and indirect employment in construction is shrin king from 2004 to 2010. Also, the total output as well as the total construction as percentage of GNP is decreasing from 25. 1% to 9. 2% in 2004 and 2010 respectively.This data has indicated that the economic return and contribution to Hong Kong is contracting to a large extent. Construction distribution to GDP Gross Domestic Product (GDP) by Economic Activity – Percentage Contribution to GDP at Basic Prices (Census and Statistics Department) | 2006| 2007| 2008| 2009| 2010| Construction| 2. 7| 2. 6| 3. 0| 3. 2| 3. 3| Services| 91. 7| 92. 8| 92. 5| 92. 6| 92. 9| GDP refers to the market value of all final goods and services produced within a country in a given period. From the table above, we can find that from 2006 to 2010, the construction industry only contributed about 3% to GDP.To compare with other industries, construction industry seems has not reach the standard of becoming a pillar in Hong Kong. The problem of construction industry in Hong Kong Building contractors in Hong Kong are usually small. The competition between domestic and foreign building contractors is keen, because our building technology is labor-intensive and traditional. They compete on price, and cut costs, and sometimes, very unfortunately, corner as well. Consequently, the problems of safety and lack of technology development happened. Besides, the building cost in Hong Kong is among the highest in advanced economies.As a result of low profitability, most industry participants adopt a short-term view on business development. Complex infrastructure projects have been undertaken by international contractors most of the time. According to Labour Department accident statistics for 2005, the accident rates per 1,000 workers in the construction industry is 59. 9, these figures were higher than the overall accident rate of 30. 6 per 1,000 workers in all industries. Due to the risk is higher than other industries, lack of graduates over the next two/three years will associate with con struction.The potential danger has reduced the possibility to attract leaving certificate students into the construction professions, it increases the difficulty to continue and expand the construction industry. Number distribution of workers in construction industry (Labour Department) | End of 2000| Beginning of 2009| Total workers| 83924| 51944| Public| 44355| 20825| Private| 32704| 31119| Building| 61676| 40772| Civil| 22248| 11172| Conclusion To conclude, we do agree that construction is very important in Hong Kong. Real estate is closely linked with the economy and it creates many job opportunities.During the â€Å"financial tsunami†, government even earmarked large amounts of public money on construction projects to stimulate the economy. However, the distribution from construction industry to GDP becomes less and less while compare with the past, it only holds about 3% of GDP every year. Besides, with many problems in this industries, it is not easy for the Government to make it as a ‘pillar’ industry. We suggest that the Government still need to put focus on construction industry but it need not to be the pillar industry in Hong Kong. Reference 1.Census and Statistics Department: Report on the Quarterly Survey of Construction Output, 3rd Quarter 2011 http://www. censtatd. gov. hk/freedownload. jsp? file=publication/stat_report/commerce/B10900022011QQ03B0100. pdf&title=Report+on+the+Quarterly+Survey+of+Construction+Output&issue=Third+Quarter+2011&lang=1 2. Census and Statistics Department: Real Estate Project Statistics http://www. censtatd. gov. hk/hong_kong_statistics/statistical_tables/index. jsp? tableID=119 3. Census and Statistics Department: Statistics in the industry section of construction http://www. enstatd. gov. hk/hong_kong_statistics/statistical_tables/index. jsp? tableID=116 4. HK Job News http://www. hkjobnews. com/2010/03/7. html 5. Construction Workers Registration Authority. Annual report http://www. cwra. org. hk /information/AnnualReport/report11/index. htm 6. Shair W, Bright horizon for Hong Kong's construction sector: Recruiting newcomers. http://www. careertimes. com. hk/english/article/show_article. asp? category_id=1037;article_id=14111;title=bright-horizon-for-hong-kong-s-construction-sector;listby=date;listby_id

Global Stratification and the World Order

Requirement One: â€Å"Global Stratification and the World Order† 1. )After reading what John Perkins had to say I really had to second guess my understanding and acceptance of our government. I did not realize how far the government is willing to go to ensure the world order and economic structure is always stacked in our country’s favor. I thought we were the country to help other countries out. The government does this, but makes it so the countries we are assisting are forever in debt to us, giving us what we want.We all seem to want to believe that we have a great government system but does tricking vulnerable countries and making them â€Å"slaves† to our economy sound like a caring strategy? I would have to say no. It was interesting to read from John Perkins that they will go through different levels of people until someone does the job and manipulates the other country or people. If those people do not succeed, then young men and women soldiers are broug ht forward to win the fight like they are doing in Iraq. This is pathetic. The government will put many peoples’ lives on the line just so they can have their way.After this information was brought to my attention, it made me and is making me feel very insecure about the government I live my life by. I love my country but the government is a completely different situation for me now. 2. ) American corporations keep our government alive and going. I say this because so many of our corporations look for cheap labor and other costs in different countries around the world that are vulnerable to our power. These American corporations will have their factors in other countries and control their workers. Then they can manipulate them and help out the government.For example, an American corporation like Target has a factory in Mexico. There might be some time of political thing going on in Mexico and a politician may be in favor to giving some control over the Mexico to the U. S. So Target will somehow bribe or persuade their workers to like this certain politician, giving the U. S. government what they want. This might me a dramatic situation but I believe it is happening. When I go to Target and buy a shirt I do not think about where it came from, what kind of environment it was made in, or who the people were who made it. American corporations can use their power against the government.If the government does not allow them to look elsewhere for cheap labor then they will no longer be funded and supported by that corporation along with other disadvantages. That could cause a domino effect with other corporations seeing this. It would simply tear our government apart. The government may be manipulating other countries but American corporations are the ones manipulating them. I always see commercials on TV, encouraging American citizens to help out others less fortunate in other countries. Sometimes the people that put on these commercials are American corporat ions.Those corporations have factors in other countries and are making it worse for that they are trying to â€Å"help†. It is a big act that the corporations put on to make it look like that they are not at fault; they are trying to fix things†¦ha. No matter where a corporation goes, labor is labor. Just because they move their factors to a poor country does not mean that the workers deserve less. They make surviving worse on them because they pay them nothing and never change it. Workers will work countless, harsh hours to make a tiny bit causing them to be mentally and physically ill.American corporations will promote help for the people that they are hurting. This is a concept that sadly I just figured out. 3. )No one should ever be murdered just for not agreeing and â€Å"going along with the program†. I would just go with it because I know how powerful the government is and I would not want to die. There have been many leaders and people of other countries w ho have not agreed with what the U. S. was trying to do with their country so they decided to put their foot down. Those people would usually end up dead or somehow their reputation got destroyed so they wished they were dead. It is a cycle that is hard to stop.People get scared of others who have power. That is horrible that power has to be used against people. I understand that this world is survival of the fittest but it is not a game to see who can win. It has been made into a game though and many people and countries lose against our government. The U. S. wins for all the wrong reasons. I understand that murder could be the answer if that person hurts our county in any way but I suppose they were just trying to make a stand in the wrong way. When I think about it I cannot think of how we can get out of this situation. How do I as a citizen of the U. S. ake our government stop this? I believe it will take a nation of citizens to realize this and make a change. 4. )The world†™s social class order is set up the exact same way as the United States’ social class. The dominant wealthy ones run the world while the rest of us live underneath them. In many social classes in the world the upper class has been distinguished by the possession of largely inherited wealth, while the working class has consisted mostly of manual laborers and semiskilled or unskilled workers, often in service industries, which earn moderate or low wages and have little access to inherited wealth.The middle class includes the middle and upper levels of clerical workers, those engaged in technical and professional occupations, supervisors and managers, and such self-employed workers as small-scale shopkeepers, businesspeople, and farmers. There is also often class permanently jobless and underemployed workers called the underclass. All of these things are related to our social system. I do not think the world has mimicked us but the U. S. has mimicked the world. We are a fairly younger country compared to others who also have had social classes sense their beginning.I do believe that when a nation changes their ways of social class sometimes others do too. The U. S. has much more equality in the social classes so other countries have seen how it works so they will make changes to their social class. The world social class as one has distinct social classes just like ours does. There are some differences though. The world social class seems to be ran more by the upper very wealthy social classes. These classes are made up of heirs that have lots of money. There are many countries who have families that have lots and lots of money.Our higher social classes do have heirs in them but I think many have made it to success and made lots of money. Social classes in the world have distinct different classes which I think we do to but there is a more mixture in each class. Sometimes people in upper class can also be categorized in the middle class, for example. 5. )Sense our world is getting older, goods and certain things are becoming limited. Each country has something that is known to them. A certain good that is in high demand is oil, for example. World political order has a lot to do with this subject.It is obvious that people who have money and are higher up in social stratification can manipulate each other which mean the average person just goes along with it. The United States has inequality as well as the rest of the world. Sometimes things that bring in money and power is more important to the ones that run each country. They will choose this over getting food to their starving citizens or put more labor into their country than into something else. I mostly am talking about the example given†¦oil. I think it is a product that holds lot of power and money. The people that have power over others, high social class people, ight over it all the time. Like I said before, countries will choose to put all of their time, energy and mo ney into the production or buying of oil. OPEC nations have this power over the rest of the world and fight against the other OPEC nations. They can easily bargain with the United States and manipulate us to give something, pay a certain amount or even sacrifice something that belongs to the citizens. It seems to me that due to economic sanctions Iran has been completely shut, both in and out. This is due to the United States and the power it has, to make their economy suffer so they can gain control.Other countries have followed along and that is why Iran’s economy has gotten worse. Requirement Two: â€Å"Move over U. S. A. -Our Biggest Economic Threats† 1. )From my research I found that China is one of the two countries that holds the biggest threat to the United States. China is second from the United States in gross domestic product at over $11trillion and gaining on the U. S. according to aneki. com (2012). GDP in the monetary value of all the finished goods and s ervices produced within a country's borders in a specific time period, usually calculated annually.The United States does have a higher GDP put China is growing on us and is determined to make more things and give out more services. This does not have to with economics but China’s education system is far better than the United States. Producing smarter people makes a better economy because those people are the ones that work for the economy making it better. United States is far away from have the same educational level as China, so this also poses a threat to us. China’s defense system is also growing towards our strong defense system.With recent reports of China’s threats to our nation it shows the tension and competition they have with us. India falls in next after China with the GDP at $4. 5 trillion. Their economy thriving. Even though $6. 5 trillion dollars from them to us with seems low, it really is not in this sense. Their economy has completely turned around in the past years and they could pass China then us any day. Like China, their education system is also thriving and becoming great. According to americaprogress. org (2013), by 2017 India will graduate 20 million people from high school.That is 5 times more than the United States. I think that India is not only getting richer but making extreme changes. Forty percent of India families survived on only $1. 25 a day. They are changing this through their education system by getting more children through school. It shows the drive for success this country has and how it can go from underdog to top dog. I know I really emphasized the educational success that China and India has been having but I believe that plays a huge factor in the future of our economy and position in the world.More educated people can bring bigger, brighter, and smarter decisions for things that deal with the economy. I am not saying that we as Americans are stupid but we need to push for better education to better ourselves. It may be an awakening for the United States. China and India’s rising GDP also shows that the two countries are making a better economy for themselves but this could cause problem for the United States. This causes a lot of pressure on us because it is coming close to the day when we are not the top dogs anymore.The government has to make careful decisions because knowing that 12% of our debt is owned by foreign countries could cause them to lose even more power. That 12% is a lot and with China and India becoming more powerful, that could become 100%. We could go from the top and powerful country to the slave to many countries. This would be a horrible situation but it could be a learning process for us. We have seen many 2nd rated countries go through some harsh things and somehow survive. Maybe as a nation we need a taste of this especially our government because they often take our society for granted.This may be a bit drastic for me to say but it is h ow I view it. References used in Requirement Two: (2012) http://www. aneki. com/largest_economies. html Cooper, Donna (2013) http://www. americanprogress. org/issues/economy/report/2012/08/21/11983/the-competition-that-really-matters/ Requirement Three: â€Å"Helping Developing Countries† Out of the theories I researched, I think that the dependency theory offers the best explanation for global stratification. This theory contends that the main reason why low-income countries are poor is because they are controlled by high-income countries.These countries exploit and dominate them. I think this is the perfect theory because it shows how much rich countries, especially the U. S. , take control of poor countries and make lives worse for the citizens. This is what this whole assignment is somewhat about†¦the power and control our nation has. Rich nations have a large amount of power by exporting jobs overseas, manipulating foreign aid, draining less powerful countries of th eir resources, and persuading or tricking national governments to comply their interests. This is what I have been discussing for part of my paper.Through this theory high-income countries benefit because the poor provide cheap labor and are no powerful enough to protest. I really believe that this shows how are world is ran. The government says they are helping other countries but really hurting them. The government I think wants to help less advantage countries but the thought of power, money, and being scared gets to them so they keep on manipulating other governments. This theory shows how global stratification works in this world and how it needs to change. The U. S. s not the only powerful country who falls under the dependency theory, other ones do and some are even worse. I believe that if we delete this theory and change global stratification, our problem with poverty in this world will stop. Christine Monnier (2011) from globalsociology. com says that dependency theory als o shows that the degree of dependency increases as time goes on. Wealthy countries are able to use their wealth to further influence developing nations into adopting policies that increase the wealth of the wealthy nations, even at their own expense.At the same time, they are able to protect themselves from being turned on by the developing nations, making their system more and more secure as time passes. Capital continues to migrate from the developing nations to the developed nations, causing the developing nations to experience a lack of wealth, which forces them to take out larger loans from the developed nations, further indebting them. This theory shows how bad countries manipulate each other and is also a never ending process. Reference used in Requirement Three: Christine, Monnier 2011 https://globalsociology. bworks. com/w/page/14711295/Theories%20of%20Global%20Stratification Requirement Four: â€Å"Open†¦. Yes†¦. ,But How Open? † a. After looking over my m atrix when I filled it out I noticed a few things. From my understanding and how I thought my matrix should be done I realized that each class of people is closed. Once a person is in a class, it is hard to be categorized into another by society. A person may go from manager to CEO and that would make them have more money and supposedly change their class. It is harder than that though.It is like what we talked about previously in our book, when society makes a stereotype there is no way to get out of that. I also noticed that I gave each class a certain annual income but after looking at it I think I was too low with each one. I thought that making $35,000 a year is middle class. I thought about it and that is more for the working class. It just shows that the modern society has changed and many people do not realize what â€Å"category† they are in. I also realized that while I filled it out I made it look like ever class besides upper and capitalist had no life or leisure time but actually their the happiest ones.Just because a person does not have a lot of money does not mean they are unhappy. Again, the stereotypical thought I had about each class got to me. After revising I would change a few things on my matrix. b. )The lower social classes are impacted hard by the out society’s stereotypical thought, like I said before. This is a huge obstacle these classes and it is hard for them to pass. It is also obvious to me that when a family is stuck in a lower class it is harder for them to get out of it within the next couple of generations.When a family does not have the means of sending their children to college, then usually that child will have to stay in the lower class because they cannot afford it either. This does not affect the poverty class but the working class and even the middle class as well. Lower class families also face the block of having a steady home. Due to money shortages, they have to move a lot going from house to house o r apartment. It seems to me that if you do not make a certain outrageous amount of money each year, then you will never get out and move up from your social class.The wealthy keep it this way by gaining more power while most of our society is trying to survive. I think that the rich have a lot of power in politics. They will sponsor and give money to politicians who agree with the way they think our society should be or keep it where it is at. Most politicians are wealthy anyways so they already know what to do. They are not there for the citizens but only for the wealthy citizens. They want to gain more power and money. It is all one big greedy cycle. Most wealthy people are good at building the people below them up, just to knock them down again.Like when huge corporations make expensive and big factors then higher people, then they turn around and lay off hundreds of workers because they cannot pay them. The wealthy want the best and to be the best so they overlook how much money they should be spending and then the workers are the ones to get damaged from it. Everywhere you go you can see how the wealthy make sure that the lower class people do not move up in class. For example, in the education system if you do not have the name, the money, or the power then you cannot attend some schools like the Ivey League schools.Tuition is pricey and is always going up. Who do you think raises that? Wealthy, greedy people do who have power to do that. Other classes have been created by the wealthy so when people of lesser class make more money they just move up to a little to the next class and are still far away from wealthy. Unless you somehow magically get millions and billions of dollars, it is very hard and usually not even an option to move up in class. The wealthy put us there and will not let us move. c. )I believe that social mobility plays a huge role in how I can understand the matrix I made.In my previous paragraphs I talked about intergenerational mobili ty (moving up or down the class hierarchy relative to the position of one’s parents). This is what I see happens a lot in our society. It is all about our last name, the money we hold, and the power we have just by the genes we are made up of. Intragenerational mobility (moving up or down the class hierarchy over one’s lifetime) does happen but from my matrix I think that people move down way more than they move up in class. I do not think it has always been this way but this is the way it is in our modern society.From reading about meritocracy (a belief that individual are rewarded for what they do and how well rather than on the basis of their ascribed status), it should be incorporated into our society and social class system way more than what it is now. This thought is just from my own beliefs and from studying how I filled out my matrix. People should not be punished or get rewarded through their ascribed status. I do not like using the term â€Å"ascribed statu s† because we all are our own individuals and should not be identified by our status.This reminds me of what we learned and wrote about from our first reflection paper. I like the idea that the Davis-Moore thesis (the functionalist view that social stratification benefits a society) has but I do not think it is implemented into our social class at all. From my view, social classes are negative but from this theory it is a positive thing. I believe that the people who need to understand this theory and make it work are the higher class people because they are the ones manipulating everything. After then accept it, we can then take advantage of our social stratification.I also believe that the use of corporate welfare (an array of direct subsidies, tax breaks, and assistance that the government has created for businesses) should be stopped because this is one of the many big parts to keeping lower class people where they are at. Instead of helping them out, the government will h elp the corporations out so they can keep their power and money. Helping them first makes sure that the government will still be supported and backed up as well. It is a never ending cycle to keep the poor†¦poor and the rich†¦richer. d. In my life time I would like have social mobility to move me up in class, just like everyone else would like. The first obstacle I cross is of course money. My parents have always helped me to get over this block because they pay for my college and support me with my living. This has helped me to focus on school and get good graded while having a part time job. I believe that getting through college is the first step for me to go up in social class. I also have picked a career in nursing which is a career that holds security and it is easy to advance in. I think that is a probably with today’s society.People choose jobs that they would like to have but most of them are unsteady with not very many openings and the chance of being laid off. Through college I can get my LPN, ADN, and BSN. Each degree can get me more money and more flexibility with the chance to increase my education. When I become a nurse I have to find the best area that can pay me the best and of course I have to like it. Once I am married and have a life I would like to have horizontal mobility (moving from one position to the another at the same class level) because it is not all about the money and class for me, I just want a happy life.This is just the way I would like everything to turn out in my life but after filling out my matrix I realized that this may not happen. As time will go one, society most likely will get worse and it will be even a bigger struggle to have social mobility. All I can do is set goals and try to achieve them but if I end up in a lower social class then I will have to accept that because it is not about my ascribed status with the little power and little money I have but how I live my life. All I can do is hope for the best. Requirement Five: â€Å"Socialism- American Style† a. I think that we will not come to terms with what our society is really like. I think that most of us dream and strive to have money and power because that is what America is all about. This is the country where your dreams can become true and you can live happily ever after. This is a great â€Å"idea† to have but it is not reality. Most poor people believe do not believe that the rich have put them there. Some do know this and try to fight it though. Rich people will help the poor but behind their backs they are just taking advantage of them. Most of us do not realize what is going on.I understand that this is the way it is because it is hard to know what the truth is†¦who to believe? Both rich and poor do not realize what truly is going on and how manipulating power and money is for both sides of the fence. It is a problem in a society that should be fixed but it is hard to find the first step to t hat. b. )Our nation’s welfare system I think helps the poor out a lot but maybe too much. This is how the rich can keep the poor poor. By allowing the poor to have an easy option to get welfare from the government, it enables them to try to better their lives.I do think that there are many poor people in American who need the help and take it while trying to give them a better life but there is also people who take advantage of it. It should become stricter with routine checks of how they are bettering themselves so they sometime will not have to use welfare. I explained this a little in this past week’s online discussion. By allowing more free money to the poor, this takes toll on the average American because they pay the taxes that fund the welfare system. More money allowed to the poor means more taxes being taken away from hard working people.It is a touchy subject because for some poor people it is hard to get out of poverty due to many factors and as a country we should help one another out. The welfare system does help many poor people but they should be pushed to get out of welfare and strive for better. If there are less people on welfare then this could take some power and control away from wealthy and powerful people. c. )I think that socialized medicine should be placed in our society. The health of each of us should be important to ourselves and also to our government.Medicine is a growing industry and with new technology and ideas it can help more people. Sadly though, many American cannot afford healthcare because they are not covered. After researching, I found that Obama-care has more pros than cons. I decided that I agree with it. Obama-care has been incorporated into our society for few years now and changes are happening, they are just taking time to be seen. According to Obamacarefacts. com, sense 2010 over 100 million American citizens have benefited from Obama-care.Its goal is to provide affordable health insurance for all US citizens and to reduce the growth in health care spending. Expensive health care means insurance companies are making more money when also means that the wealthy owners are gaining power. Obama-care may be what our nation needs for socialized medicine but it will take some time to figure it out. From my view, I think that we are on the right track and Obama-care has out us there. Being able to access cheaper healthcare or even just being able to get medical needs for everyone takes a lot of stress off of every citizen from rich to poor. . )In a perfect world I think that people over the age of 65 should have totally free medical care. I wish this could really happen but I do not think it ever will. I think that there might be a time where they pay very little for their medical care though. As a nation, we should strive to make the rest of their elderly lives comfortable because they have worked hard to get where they are at. Some elderly people have not worked very hard though an d those are the people who should be charged for their medical services. I think that when you put in the time you should get rewarded.There somehow needs to be a system where the government can tell how much time and effort that person has put into their jobs. This is kind of a crazy idea because it is hard to determine that we farmers or housewives for example who put countless hours into working and living for their family. Like I said before, I do not think that there will be a day where people older than 65 have free health care but we can aim to decrease their amount of paying as much as possible. I know when I reach that time in my life I will not want to be concerned about how much money I have to pay for healthcare.I would rather be thanked for all of my hard working hours that I gave to my community through cheaper healthcare. e. )I think that our society should incorporate more socialism because we are one nation so we should live as one. Many people are struggling in our society to survive and I think we need to come together to help one another out through forms of socialism. We should look at it as not being ran by the government but working together to benefit our nation not just ourselves as individual.I think that the education system should be available for all, from elementary through college. We should work as one unit to better educate our children. There also needs to be less power from the government and more power given to the people. It is basically what I have been saying throughout this whole paper. There needs to be equality through money and power going from each social class. I think my whole point of my paper is that socialism should be more incorporated into our society. Reference used in Requirement Five: (2010) http://obamacarefacts. com/obamacare-facts. php

Multi User Operating Systems Essay

An operating system is a set of software programs, which manage computer hardware in a controlled fashion. The operating system controls the file-system, process management, memory management and peripherals. Multi-user operating systems are used on large mainframe computers. A mainframe computer system has one very powerful processing unit, which may contain many microprocessors. Many users will all share this processing unit. They use terminals (a keyboard and a monitor) to access the mainframe computer. A multi-user operating system lets more that one user work on a mainframe computer at the same time. Features of a MUOS The main features of multi user operating systems are resource sharing, multi tasking and background processing.  · Using resource sharing in a multi-user operating system allocates the CPU time of the mainframe computer between the different users. Each user in turn is given a small time slice of the CPU time. Because these time slices are very small the users believe that they are all using the mainframe at the same time. Resource sharing also lets users share peripherals such as printers or hard drives and also lets users share files on a network.  · Multi-tasking lets the operating system run more than one program at a time. One example of a multi tasking could be editing a word document while browsing the Internet. The way this is done is by the processor using time slicing.  · Background processing is a term which means when commands are not processed straight away but rather executed â€Å"in the background†, often while other programs are interfacing with the system in real time. Types of MUOS There are three main types of multi user operating system. These are distributed systems, time sliced systems and multi processor systems.  · In a distributed system, to the user it appears to be a single computer system but in fact is made up from a number of different host computers, which are connected together. This is completely hidden from the user. All decisions about what computer each user will connect to would be taken by the distributed system’s operating system. Each individual host within such a distributed could be any type of computer at all.  · Time sliced systems split each users time of use of the system to fairly allocate each user a fair amount of time of use. These time slices are so small that it appears to the user that their programs are running continuously when in fact the CPU is jumping from user to user. Each time slice is milliseconds long so each user is actually given several time slices every second. The more each user tries to do the slower their programs will run as their time slice has to split between their different tasks.  · Multi processor systems use more than one processor in a single computer to make themselves much more powerful and relieve the load of sharing the operating system and CPU. Users will again be distributed time slices but since there will be more than one processor there will be more allocation of time to each user rather than if there were only one processor. Main Components of a MUOS There are many components that are needed to run a multi user operating system. These include the processor, memory, data storage devices, terminals and input/output devices.  · The processor, also known as CPU or central processing unit In  terms of computing power, the CPU is the most important element of a computer system. The CPU is the brains of the computer. Sometimes referred to simply as the processor or central processor, the CPU is where most calculations take place. On large machines, CPUs require one or more printed circuit boards. On personal computers and small workstations, the CPU is housed in a single chip called a microprocessor.  · Memory refers to the physical memory that is internal to the computer. Sometimes mistaken for mass storage devices such as hard drives the word ‘main’ is used to differentiate it from this. Memory is usual known as RAM or Random Access Memory. The computer can only manipulate data that is in main memory, therefore, every program that you execute and every file that you access must be copied from a storage device such as a hard drive into main memory. The amount of main memory on a computer is crucial because it determines how many programs can be run at one time and how much data can be readily available to a program.  · There is a couple of data storage devices used in multi user operating systems. The term usually refers to mass storage devices such as hard disk drives or tape drives. Large amounts of data such as the operating system itself and any other programs that are installed on the computer are all kept on such devices so that can be accessed by the RAM and then processed to be used by the user. The main types of storage are: – o Hard disk drives: The most common type of mass data storage used on a computer because of the large amounts of data which can be held and the speed it can be accessed at. o Floppy disks: Much slower than hard drives and hold very little data but are easy portable and inexpensive. o Optical disks: This method uses lasers to read and write data. Optical drives hold a large capacity but are not as fast as hard drives but are as portable as floppy disks and with the right equipment (CD Writer) can be used to read and write data. o Tapes: Not too expensive and hold large amounts of data but do not permit random access of data.  · There are two main types of terminal used to access multi user operating systems. One is a dumb terminal, which just consists of a computer and a keyboard, but practically no processing power. They allow a user to carry out work on the remote server, minicomputer or mainframe. Smart terminals provide additional resources to perform local editing and simple processing. Basically, smart terminals are low cost PC platforms with no external storage like hard drives booting from a network.  · Input/Output devices refers to devices with allow the user to put data and receive data to and from the computer system. For instance an input device may be a keyboard or a mouse and output devices can be things such as monitors and printers. Software Components of a MUOS The main software components of a multi user operating system are the kernel, device handlers, spoolers and the user interface.  · The kernel of an operating system is the most protected and privileged layer of the operating system and acts as a timekeeper and regulator for the system, controlling any time slicing for multi user or multi tasking functions. This ensures fairness in the way resources are allocated and used, and dealing with interrupts having different priorities, which arrive to signal internal and external events.  · A device handler is a small program, which controls a particular type of device connected to a computer. There are device drivers for every hardware component on a computer. If a complex device is added to the machine then a device handler must be added to the operating software because this will contain the code needed to communicate with the device.  · A spooler puts jobs on a queue and takes them off one at a time. Most operating systems come with one or more spoolers, such as a print spooler for spooling documents. In addition, some applications include spoolers. Many word processors, for example, include their own print spooler. A good print spooler should allow you to change the order of documents in the queue and to cancel specific print jobs. Acronym for simultaneous peripheral operations on-line, spooling refers to putting jobs in a buffer, a special area in memory or on a disk where a device can access them when it is ready. Spooling is useful because devices access data at different rates. The buffer provides a waiting station where data can rest while the slower device catches up.  · The user interface is the junction between a user and a computer program. An interface is a set of commands or menus through which a user communicates with a program. A command-driven interface is one in which you enter commands. A menu-driven interface is one in which you select command choices from various menus displayed on the screen. The user interface is one of the most important parts of any program because it determines how easily you can make the program do what you want. A powerful program with a poorly designed user interface has little value. Graphical user interfaces (GUIs) that use windows, icons, and pop-up menus have become standard on personal computers.

Movie Mississippi Burning Essay Example | Topics and Well Written Essays - 750 words

Movie Mississippi Burning - Essay Example One agent-Ward-is young but has risen in the hierarchy by rigidly following protocol. The other-Anderson-is a former small town Mississippi sheriff who joined the FBI late in life. This movie is not factual but is instead a story suggested by the facts ("Mississippi Burning": The Movie, 1988). The movie shows the FBI as ultimately using the illegal vigilante terror tactics of the Ku Klux Klan against the Klan itself. Also, in the movie, the FBI was given all the credit for carrying the civil rights banner, with no credit acknowledged for Dr. Martin Luther King's moral policy of non-violence and the organized coalitions of blacks and whites under his banner. One reviewer noted that The campaign to find the missing workers was directed by J. Edgar Hoover, and it was known that he despised blacks. In fact, he was more involved in an effort to prove that Dr. King was a communist. The movie offered stereotypical portraits of black citizens and white terrorists, and the FBI agents ultimately used the same tactics as the Klan to solve the crime, with one death as the result. Any act committed within the jurisdiction of the United States that is dangerous to human life and becomes a violation of the criminal laws of a state or of the United States is considered domestic terrorism (U.S. Code, 2006). It therefore can be said that the tactics used by both sides constituted domestic terrorism. Confederacy in the South continued to be rampant in 1964, even though the Civil War had ended 100 years earlier, and many southerners still refused to accept efforts to unite the country. Mississippians, and especially small town Mississippians, were convinced that blacks had no rights and anyone involved with them was a "nigger lover" or a communist. Douglas Linder's detailed account of the "Mississippi Burning" trial-U.S. vs. Cecil Price et al-held in 1967 (2007) shows a photograph of defendants Sheriff Cecil Price and Sheriff Lawrence Rainey smirking and chewing tobacco that immediately brings to mind "southern red necks," and makes it easy to accept the Ku Klux Klan stereotype of ignorant racists. In Mississippi in 1964, there was no federal police force, and protection was the responsibility of the local police. When three civil rights workers__two white and one black-disappeared in east central Mississippi in June 1964, the Mississippi Highway Safety Patrol and the FBI were no tified, and a search took place (Linder, 2002). It was discovered that the three men had been stopped by the local police and taken to jail. The following day, they were released, but they were not seen again. When the federal agents, who had been called in to the situation, were unable to find the young men after 24 hours, a full kidnap investigation was initiated by the Justice Department under the "Lindbergh Law." The younger agent, Ward, called in many workers to help find the boys. While the movie showed the Ku Klux Klan as responsible for the deaths of the three students, in actuality it could be said , according to Linder, "In spirit, everyone belonged to the Klan" (2002, p. 6). With the help of one

Women finding their identity in the modern world Essay

Women finding their identity in the modern world - Essay Example The author correctly points out that the world as young women see it today is something that was not there before 1950s or before the feminist movements. Rosen maintains that young women today cannot even identify with the 1950s era when life of women revolved around home, husband and kids. Various feminist movements, ideologies, and objectives have changed the landscape of rights for women. This change was seen as "the most powerful challenge to the feminine mystique," i and changed the way things were in women workforce increasing their participation in economic activities. It was during the 1950s that young women slowly "rejected the world of their mothers" and because of this change, this generation was termed anti-motherhood. The various changes in feminist movements have been witnessed over the decades. In the 1950s since feminism was still new, women had adopted the rather ill fitting tools to compete with men. They had become sexually, socially and intellectually rebellious but over the years, they realized that these tools were not helping them with their objectives. Rosen notes that during the 1970s, FBI got involved with feminism movement in order to stifle the latter. The paranoia had spread far and wide and feminist politics had become a major party of US political scene. Many feminists had become wary of government's interference as Rosen states: "Still, in my wildest flights of paranoia I never imagined the extent to which the FBI spied on feminists or how many women did the spying"ii. It was believed that FBI had recruited women informers to tip them off about such subversive aims as: "They wanted equal opportunities that men have in work and in society" iii. Many people saw feminist activitie s as a threat to internal security as Hoover was found saying: "Inter woven with its goals for equal rights for women is the advocation of violence to achieve these goals," that he saw as a threat to internal security iv. Thus FBI files contained information on feminist activities and agenda as one operative explained: "This movement has no leaders, dues, or organizations"v. The most disturbing aspect of FBI involvement was that it had a negative impact on solidarity of feminists. Some of the women would accuse each other of being informers thus hurting their bond of sisterhood to the effect that "feminists sometimes found it easier to accuse one another of being informers than to accept the inevitable differences among them that, even without the FBI, would naturally result in different feminist perspectives and different ideas of sisterhood"vi. Such differences resulted in the complete dissipation of feminism's objectives. These disagreements grew to the extent that by the mid-1970s, this movement "was everywhere and nowhere" vii. This means that during this time feminist movement was suffering from diffusion and misunderstanding. Many people felt that feminism was all about becoming a super-woman who cared about nothing and no one except her own dreams and herself. That was certainly not good for the movement as Rosen explains: "when Americans took a good hard look at this narcissistic superwoman who embraced the values of the dominant culture, they grew anxious and frightened, for they no longer saw loyal mothers and wives who would care for the human community, but a dangerous individual, unplugged from home and hearth, in other words, a female version of

Monoclonal antibody vs small molecules pharmacology Essay

Monoclonal antibody vs small molecules pharmacology - Essay Example y development, their different characteristics, clinical trial design, choice of study population, study design guidelines, estimation of the first dose, study design guidelines, and regulatory agencies shall all be investigated. A conclusion will thus be drawn. Given the risky and fatal impact of failed drug production in humans, the need to be comprehensively certain of the efficacy, function and overall pharmacological outcomes of a clinical drug is very important. It is against this backdrop that early human exploratory development has been used over the years as the first part of any clinical development phase of a novel compound or clinical drug where the compound or drug is assessed for tolerability, pharmacodynamics, and pharmacokinetics in humans (Jefferis, 2007). There are number of ways in which mAbs have been noted to be different from conventional small molecule drugs. First, Telling (2004) indicated that there is a major interspecies variation between the use of the two molecule forms. What is more, mAbs exhibit less homogenous biological production process when compared to small molecules. Directly related to the action of the biological production is the fact that the mAb is able to achieve specificity of action during drug development but no such specificity of action is achieved for small molecules (Vorberg et al., 2000). Again, the target toxicity for mAbs have been found to be unspecific as there could be on and off target toxicity, accompanied with a highly complex PK:PD relationship. In terms of the field research that have been performed for these two molecule forms, Treon et al. (2005) argued that mAb has seen a relatively youthful research field, most of which have showed outcomes of rare to no linear dose response. What is mo re, there is an unpredictable effect on the immune system complex when mAb is used. among other factors, there is poor oral bioavailability, long half-life, and complex non-linear kinetics in mAb when in actual fact

Public argument Essay Example | Topics and Well Written Essays - 1500 words

Public argument - Essay Example It opposes the highly punitive and restrictive approach to copyright in digital media because it has not and will not solve digital piracy and instead, innovative business models with collectivistic values can help curb it. Increasingly punitive copyright laws are not effective in ending digital piracy because technology is faster than lawmaking. Several laws have been passed for the past twenty-five years that support copyrighted media, but up to now, digital media continue to be pirated and shared through P2P and other networking systems. The Copyright, Designs and Patents Act 1988 (CDPA) provides a structure that implements a system of copyright protections, which include important automatic restrictions with criminal and civil sanctions, wherein they generally define â€Å"knowledge as an asset more than a public resource† (Filby 207). The 1998 Digital Millennium Copyright Act (DMCA) reinforced the CDPA, as it treated various media products as corporate assets, even when t hey were previously perceived and used as public resources. Despite these laws, digital media piracy continues, particularly affecting the industries of movies, TV shows, and music. Corporate media firms allege that they are losing billions of dollars because of piracy and free content sharing online. Supporters of stricter copyright policies promote the Stop Online Piracy Act (SOPA) in Congress and its Senate bill, the Protect IP Act (PIPA). These bills aim to stop websites and organizations, including those outside the United States, from selling or sharing pirated copyrighted digital media material and fake counterfeit goods. These are additional laws that will fail as others have because technology changes rapidly enough to support digital piracy and free sharing of copyrighted products. A good example of failed copyright laws is the Rojadirecta Case, where technology facilitates the ineffectiveness of these laws. On February 1, 2011, the U.S. government seized the rojadirecta.c om and rojadirecta.org domain names. These websites provided a guide to Internet TV (Picker). Compared to the initial business of Napster, Rojadirecta gives links, not direct hosting, to assist P2P TV (Picker). Rojadirecta might have lost its U.S. domain names, but it easily fixed the problem by establishing new domain names offshore and relocating them to Spain at rojadirecta.es (Picker). In other words, it is back to business as usual. Organizations, groups, and individuals that support free sharing know international laws, and they have a large and supportive network, as well as the money and technology to help them continue their services in any part of the world. Globalization through the Internet has expanded the boundaries and opportunities for these stakeholders. The U.S. government and media corporations can paint them as the bad guys, but for their allies and customers, they are the good guys, who are using technology for freedom of speech and digital media content. Thus, the case of Rojadirecta shows that people with technology will always find a way to circumvent these copyright laws because they believe that they are right in using digital media as public resources. The tighter the laws, the more rebelliously creative they become. What should the government do instead? Look away as digital pirates sell content that others own and many customers pay

Nursing reading research 3 Essay Example | Topics and Well Written Essays - 1500 words

Nursing reading research 3 - Essay Example From the article it is difficult to ascertain the consent rate because the survey was conducted in an 11-bed ICU ward and only seven family members have been involved in the study. There is no indication as to whether all the 11 beds were occupied or not, and if it were fully occupied why there remaining four were not included. In addition it is stated that â€Å"recruitment of participants continued until saturation of the initial data occurred† leaving some gap in target sample size. (Bond, et al, 2003). The mortality rate was above 57% (4 out of 7 participant’s relatives died).This data has much relevance with the research outcome, because the data reinforced the seriousness of severe traumatic brain injury and the extreme need to support families of such patients during the patients’ ICU stay†. The data size was seven family members, with dissimilar relationship, of patients with severe traumatic brain injury. Their ages ranged from 41 to 61 years. Since this is a qualitative study the small sample (7 participants) size can provide â€Å"insights about a particular group or patients† and â€Å"can illustrate qualitative findings.† The study was conducted at an eleven-bed neurological ICU in a level I trauma centre. Initial data collection was held in the privacy of a nearby waiting room, and subsequent interviews were conducted either at the hospital or by telephone, at the participant’s convenience. This study was quasi-experimental one aimed to formulate hypothesis for further research and except using inclusion criteria there were no independent variables that have to be controlled, and content analysis was used to identify common themes. Though interview method was the primary instrument of data collection, its variations like personal interview, additional daily interview, telephonic data collection, appropriate follow-up,

Assessment Practices in Classroom Dissertation Example | Topics and Well Written Essays - 1000 words

Assessment Practices in Classroom - Dissertation Example The paper "Assessment Practices in Classroom" presents the discussion about the types of assessment practices that the author has observed in classrooms and if the teacher assistant helped with the assessment and if so, in what ways. The paper also describes and discusses the importance of curriculum-based assessment.In classrooms, teachers carry out different forms of assessment. There are two distinct types of assessments. The first one is summative while the other is formative. Educators use summative assessments to gauge whether the students are learning relative to the said content standards. Examples of such assessments that I have noticed in class are the end of term exams and the end of chapter tests. Formative assessment on the other end is instrumental in classroom practice that contributes to teaching while the students continue to learning. An example of such is the group and personal presentation that the students do time to time. The educator can identify the areas that the students have understood while the same time contributes to an area that he feels needs more understanding. Another key distinction between formative assessments from the latter is the participation of the students. Formative assessment can only be achieved with the involvement of students in the discussion. And the teacher assistant helped with the assessment especially during the discussion in classes. As the students presented their findings, the teacher assistant pointed out the areas that did not have enough research.

Fear Essay Example | Topics and Well Written Essays - 750 words - 2

Fear - Essay Example Or indeed, if I have wronged anyone, I want to make it right. This shows me to have strong moral and ethical beliefs. It is possibly this which makes me unafraid of punishment after death. My choices also show that I have trust, hope and faith. These are evidenced in my not fearing death to be the end of feeling and thinking, nor of taking a long time to die or of losing control of what is being done to my body. I trust those who would be caring for me, be they loved ones or medical professionals to do the best for me. I have hope that something might turn up. I recognize that some answers show a cluster of fear of the unknown, being afraid of nothingness, the end of everything, and of dying because I do not know what happens next. My fear of pain also emerges via the responses to pain of dying or dying suddenly and violently. Finally, I fear to die alone. Contributions from Upbringing: These results highlight the love, care and attention I received in my upbringing. That though there may not have been overtly religious influences, a strong moral and ethical code has been instilled, more humanist in belief than religion-driven. I was taught to care about other people, not to let them down and to expect the same in return. In fearing the unknown, the possible end to everything, suggests that Heaven and Hell were not concepts that figured largely in my childhood. Love, loyalty and kindness are the prime factors which have helped to form my adult views and values. Pain is something I must have experienced either in myself or a loved one, as the results suggest I really fear it. Overall, I am more optimistic than pessimistic, positive rather than negative. Contribution from Personal Culture: With regard to this, although I believe myself to be well-equipped to handle life, I perceive that today the human being is driven to find out more, to own all the knowledge available out there. It is as if the idea of 'anybody can do/be/have/ anything' is the leading factor of living. Fear and frustration emerge when that which cannot be known is presented to me. Then, I am afraid of being powerless in the face of that unknowable, the nothingness which might exist. Also, we have such faith in science, that it will prolong life and provide all the answers, help to take away the pain of living and dying. There seems to me to be a sort of odd contradiction here, being both hope and fear together. Personal Beliefs and Attitudes: Carrying out the survey and analysis has been valuable and 3 enlightening for me.

China and Globalization Essay Example for Free

China and Globalization Essay China’s rapid ascent as one of the world’s fastest-growing economies (Adornino Wilcox, 96) has triggered enormous attention among scholars interested not only in the political, economic and social underpinnings of its continued growth but also in the implications of its increased integration with the global economy. Indeed, an examination of the unique characteristic of China’s development and transition from a planned, centralized economy based on the socialist ideology to the liberal, open-market economy it is today strengthens the arguments in support of globalization. On the other hand, the impact of its liberalization and democratization on China’s poor also presents a critical view on the trade-offs of global integration. The stage for China’s entry into the global economy was clearly set by the transition from a closed, relatively self-sufficient economy which was crystallized in the post-Mao era under Deng Xiaoping’s leadership in the Chinese Communist Party. In the late 1970s, the Party began instituting domestic economic and social reforms mirroring its abandonment of the socialist economy and ideology in favor of neoliberal economics. (Adormino Wilcox 96) Among the major reforms undertaken was the development and democratization of trade and markets, effectively allowing uncontrolled private ownership to the means of production, heretofore owned publicly, and the shift from a planned economy to a â€Å"market-oriented free trading system. † (Guan, 2001:118) Likewise, the Chinese government reduced state control and intervention in economic activities as it began to adopt an Open Door policy to attract foreign direct investment and facilitate the growth of China’s international trade. Thus, China became part of the global economy after economic liberalization and democratization. On the other hand, the country’s integration into the neoliberal world economic order has also been the subject of much criticism. Guan (2000) notes that the implementation of market reforms and China’s consequent integration drastically changed not only the country’s economic system but also important aspects of its social policy. (119) As a result of the shift to a free market economy, the State’s role in the provision of welfare and security for its citizens significantly diminished. For instance, food and price subsidies have been stopped and the poor are faced with the risks of unemployment. Likewise, Guan (2001) asserts that widening social inequality has also characterized modern China despite sustained economic growth and efforts at reforming social policy to provide safety nets for labor, agriculture, and other poor sectors. (243) Undoubtedly, knowledge of both the negative and positive aspects of liberalization informs the Chinese government’s attitude toward global economic integration. This is evident in the manner by which the state has controlled the pace of China’s integration with the international economy in order to preserve social stability. (Adornino Wilcox, 97; Yong Moore, 117) However, Yong and Moore (2004) attribute the State’s waryness of completely and totally embracing globalization to its fear of the inherent weaknesses and vulnerabilities of a globalized system that could jeopardize China’s â€Å"strategic outlook as an aspiring great power. † (117) China is thus effectively hindered from fully associating itself with the global economy due to its political identity as a socialist country and to the fact that the market reform has resulted into the further fragmentation of interests in Chinese society. Thus, it is in the most ironic sense that, as Adornino and Wilcox (2006) observe, the Chinese Communist Party legitimizes its rule and power through a flourishing capitalist economy. (100) The State is therefore careful of rushing headlong into a fully open, liberalized country since this would entail the further erosion of its power as â€Å"market reforms have increasingly devolved decision-making powers to producers and enterprise managers. † (Adornino Wilcox, 100) The further diffussion and decentralization of power threatens not only the leadership of the Chinese Communist Party but also endangers the country to social instability as the needs of its citizens become increasingly diverse and at the same time polarized between those benefitting from the market reform and those who have lost much because of it. (Adornino Wilcox, 100) China’s experience in globalization is arguably unique due to the government’s ambivalence in adopting a clearly Capitalist stance and ideology and the pressure created by the need for social equality. China’s integration to the global market is hampered by internal difficulties in aligning various political and economic interests. On the one hand, China’s economic restructuring has created a rapidly growing and expanding market and trading system integrated with the international economy. On the other hand, its government has to precariously balance competing interests in social and domestic policy, resolve the problems in social inequality, and at the same time reduce its involvement in economic activities as demanded by the free market economy. Thus, while the benefits of China’s rapidly growing economy is obvious for the elite, the host of political and social problems created in its wake also makes the majority of the Chinese people bear the brunt of the development from a clearly socialist path into an ambivalent capitalist society. Works Cited: Adormino, Giovanni and Wilcox, Russel G. â€Å"China: Between Social Stability and Market Integration. † China World Economy 14. 3(2006):95-108. Guan, Xin Ping. â€Å"China’s Social Policy: Reform and Development in the Context of Marketization and Globalization. † Social Policy and Administration 34. 1(2000):115-130. Guan, Xinping. â€Å"Globalization, Inequality, and Social Policy: China on the Treshold of Entry into the World Trade Organization. † Social Policy and Administration 35. 3(2001):242-257. Yong, Deng and Moore, Thomas G. â€Å"China Views Globalization: Toward a New Great Power Politics? † The Washington Quarterly 27. 3(2004):117-136.

Ohms law Essay Example for Free

Ohms law Essay An electronics factory needs resistors of 5 ohms and 15 ohms for a new electrical device. My task is to investigate how the resistance of a piece of wire depends on length and to find the length of the wire needed to make the required resistors, using only 4 volts. Introduction/Planning A selection of different wires made from constantan and nichrome and the usual laboratory apparatus will be available for me. Wire A Constantan wire of approximate diameter 0. 3mm Wire B Constantan wire of approximate diameter 0. 4mm Wire C Constantan wire of approximate diameter 0. 3mm A constantan is an alloy whose resistance stays fairly constant when it becomes hot. In fact the resistance changes by less than 0. 5% even when the temperature rises by a few hundred degrees. Nichrome, along with other metals, is an alloy whose temperature does change appreciably when it becomes hot. Before starting my coursework, I have to find the variables in the experiment, safety aspects etc. I found that a number of things affect the resistance of a wire. Below is a list of factors and reasons why they affect the resistance of a wire. From this list of factors I have to make sure that these factors remain constant or excluded from the experiment. We are only investigating length but the other variables may change our outcomes. In electricity, resistance is the ratio of the potential difference (p. d. or voltage) across a conductor to the electrical current, which flows through it as a result. The unit of measurement is the ohm (O), this being the resistance of a conductor requiring a potential difference of 1 volt across its ends to produce a current of 1 ampere. For a given metal conductor at constant temperature the value is the same whatever the current (Ohms law), but rises if the temperature rises. Any conductor possessing resistance gives off heat when a current flows through it. Joules law describes this effect. Resistance occurs when the electrons travelling along the wire collide with the atoms of the wire. These collisions slow down the flow of electrons causing resistance. Resistance is a measure of how hard it is to move the electrons through the wire. Ohms law: The current flowing through a metal is proportional to the potential difference across it, provided that the temperature remains constant. We are going to use metals, which obey ohms law, metals which give us a constant value for resistance (gradient). Resistance (? ) = P. d across the wire (V) / Current through the wire (A) Current flows in an electric circuit in accordance with several definite laws. The basic law of current flow is Ohms law, named for its discoverer, the German physicist Georg Ohm. Ohms law states that the amount of current flowing in a circuit made up of pure resistances is directly proportional to the electromotive force impressed on the circuit and inversely proportional to the total resistance of the circuit. The law is usually expressed by the formula I = V/R, where I is the current in amperes, V is the electromotive force in volts, and R is the resistance in ohms Ohms law applies to all electric circuits for both direct current (DC) and alternating current (AC), but additional principles must be invoked for the analysis of complex circuits and for AC circuits also involving inductances and capacitances. A series circuit as on page 5, is one in which the devices or elements of the circuit are arranged in such a way that the entire current (I) passes through each element without division or branching into parallel circuits. When two or more resistances are in series in a circuit, the total resistance may be calculated by adding the values of such resistances. If the resistances are in parallel, the total value of the resistance in the circuit is given by the formula: In a parallel circuit, electrical devices, such as incandescent lamps or the cells of a battery, are arranged to allow all positive (+) poles, electrodes, and terminals to be joined to one conductor, and all negative (-) ones to another conductor, so that each unit is, in effect, on a parallel branch. The value of two equal resistances in parallel is equal to half the value of the component resistances, and in every case the value of resistances in parallel is less than the value of the smallest of the individual resistances involved. In AC circuits, or circuits with varying currents, circuit components other than resistance must be considered. If a circuit has a number of interconnected branches, two other laws are applied in order to find the current flowing in the various branches. These laws, discovered by the German physicist Gustav Robert Kirchhoff, are known as Kirchhoffs laws of networks. The first of Kirchhoffs laws states that at any junction in a circuit through which a steady current is flowing, the sum of the currents flowing to the point is equal to the sum of the currents flowing away from that point. The second law states that, starting at any point in a network and following any closed path back to the starting point, the net sum of the electromotive forces encountered will be equal to the net sum of the products of the resistances encountered and the currents flowing through them. This second law is simply an extension of Ohms law. The application of Ohms law to circuits in which there is an alternating current is complicated by the fact that capacity and inductance are always present. Inductance makes the peak value of an alternating current lag behind the peak value of voltage; capacitance makes the peak value of voltage lag behind the peak value of the current. Capacitance and inductance inhibit the flow of alternating current and must be taken into account in calculating current flow. The current in AC circuits can be determined graphically by means of vectors or by means of the algebraic equation, in which L is inductance, C is capacitance, and f is the frequency of the current. The quantity in the denominator of the fraction is called the impedance of the circuit to alternating current and is sometimes represented by the letter Z; then Ohms law for AC circuits is expressed by the simple equation I = V/Z. We know that all instruments have an error on its measurement, so the way to work out the percentage error is: Percentage error = (error / measured value) i 100 Conduction in metals In metals, atoms contain protons, nucleus and lose electrons which orbit around the nucleus. Below, I have investigated conduction in metals and how they affect resistance. METAL LATTICE (Electrons move in a random direction. ) METAL LATTICE (Electrons with power pack in a particular direction. ) Variables Length: If the length of the wire is increased then the resistance will also increase as the electrons will have a longer distance to travel and so more collisions will occur. Due to this, the length increase should be proportional to the resistance increase. Thickness: If the wires thickness is increased the resistance will decrease. This is because of the increase in the space for the electrons to travel through. Due to this increased space between the atoms, there should be fewer collisions. The number of free electrons changes from one material to another. The size of the ions changes from one material to another, this affects the current and therefore affects the resistance. The arrangement and size of the atoms change from one material to another. So if there is a kink in the wire this will change the thickness of the wire. Temperature: If the wire is heated up the atoms in the wire will start to vibrate because of their increase in energy.

Analysing Different Theories Of Competition Economics Essay

Analysing Different Theories Of Competition Economics Essay The nature of competition and its consequences on key economic variables, such as prices, profits, and growth, have always been important for theoretical and empirical investigation. (Tsalik and Tsoulfidis, 1998, p.187) Many non-economist and even many economists use the term competition loosely to apply to markets that we refer to as non-competitive and some people use the term competition to refer to a market in which a few price-setting firms compete vigorously for sales. (Carlton and Perloff, 2005, p.85) Different terms of competition can be applied by the extent of market power. As Ochoa and Glick argued, in comparing competing theories, it is difficult to single out the variables that represent each theory and one should begin by evaluating the most typical representation of each theory. (Blaug, 1978, p.697) First of all, the essay will present the standard neoclassical view of competition. In the next section, it will show the Austrian criticism of the standard theory. Then, turn to the Post-Keynesian criticism of the neoclassical theory of competition. Lastly, it will focus on the significance of the both criticism of the standard neoclassical view of competition. Lets start with standard neoclassical theory of competition; generally speaking, neoclassical theorists who are the mainstream economists extended Smiths theory, classical theory, of a market system by formulating several conditions under which efficient resources allocation and an optimum level of social welfare would be realised. (Semmler, 1982, p 93) That is to say, in neoclassical theory, there are largely two main concerns of the school of thought, which are utility maximisation and resource allocation. Moreover, it is also believed that the mainstream microeconomics, neoclassical theory, considers the real world of markets, just as if observed phenomena characterise the fulfilment of equilibrium conditions. According to Tsaliki and Tsoulfidis, (1998) competition is regarded as a position of equilibrium that would prevail if there would be free exit and entry of firms, in terms of neoclassical view of economics. As Semmler indicated, in terms of neoclassical theory, the main conditions, necessary for a perfectly working competitive market system, are seen as: profit maximising producers and utility maximising consumers; a sufficiently large number of market agents; no externalities among their activities; and perfect mobility of resources between industries; and perfect foresight. (Semmler, 1982, p.93) As following the conditions we argued, it can assume that competitive procedures lead prices into equilibrium prices. As Semmler said, (1982) competition can lead disturbances eliminated and an optimal allocation of resources brought. Moreover, throughout the market system the existence of equilibrium prices are guaranteed. In this manner, both equilibrium and optimisation are regarded as distinctive features of neoclassical theory. In short, under neoclassical theory, Tsaliki and Tsoulfidis stated that the intensity of competition generally depends on the number of sellers and buyers on the market structure of an industry. (Tsaliki and Tsoulfidis, 1998, p.188) Therefore, firms competitive behaviour is getting more effective as long as the number of firms in a specific industry is getting larger. As a result of this, Tsaliki and Tsoulfidis argued that competition produces an equilibrium set of prices that induce a Pareto optimal allocation of the economys goods and services. (Tsaliki and Tsoulfidis, 1998, p.188) On the contrary, if the number of seller and buyer is getting smaller, the oligopolistic and monopolistic behaviour in the market is getting more and more. Consequently, some prices are above marginal cost and it is shown as underutilisation and underproduction even if they have available resources. It is called non-competitive equilibrium position. For that reason, Tsaliki and Tsoulfidis argued that within the standard microeconomic theory of the firm, the persistence of profits in excess of normal is always associated with market imperfections, and therefore, with some degree of monopoly power. (Tsaliki and Tsoulfidis, 1998, p.188) Semmler believed that the features of standard theory need some qualifications, which is there are three main qualifications. Firstly, one of the qualifications is quantity theory of competition. As it mentioned above, the intensity of competition in the market can be measured by the quantity theory of competition. It can mean that sufficiently large number of firms can lead to the optimum level closely. Next comes to one of the key assumptions is prices and quantities congregate on the way to an equilibrium driven by competitive features. Lastly, the elimination of uncertainty, risk and expectation, is the third features of the neoclassical view of key assumptions. Furthermore, in this theory, As Tsaliki and Tsoulfidis mentioned, firms are mainly seen as passive, that is-given the consumers preferences and the technological opportunities-they merely react to parametrically given prices. (Tsaliki and Tsoulfidis, 1998, p.188) The work researched by Tsaliki and Tsoulfidis (1998) showed that the market structure of industries tends to be the core factor of neoclassical empirical studies with respect to observed interindustry profit rate differentials. Moreover, they believed that many neoclassical economists consider barriers to entry at least as equally significant as the degree of industry concentration. According to Vaughn, he argued that the Austrian tradition is represented in modern economics by a very vocal, feisty and dedicated subset of the economics profession (Vaughn, 1994, p.11) Generally speaking, the approaches researched by the Austrian writers have contributed to most primary problems of microeconomics, for sure. According to Kirzner, the fundamental theory of Austrian approaches is the conviction that the standard neoclassical microeconomics, for which the Walrasian general equilibrium model (in its modern Arrow-Dbreu incarnation) is the analytical core, fails to offer a satisfying theoretical framework for understanding what happens in market economies. (Kirzner, 1997, p.61) In terms of the Austrian approach, imperfect information can be decided as involving an element whilst it cannot be a part of neoclassical elements. Modern Austrian theory can be discussed as several main factors, which play a significantly important role in Austrian theory. In the paper, we will focus on two significant element, entrepreneurship and equilibrium concepts to understand Austrian criticism of standard view. The key point of the main factors in understanding the competitive process is entrepreneurship, the driving aspect in the Austrian theory. To understand entrepreneurial discovery approach needs to be aware of understanding actions, conditions and circumstances of entrepreneurs. Moreover, it is also pivotal to understand the nature of uncertainty. In the Austrian theory entrepreneurs always face uncertainties, which are pervasive and which are risks and fundamental uncertainties. Unlike the neoclassical theory, Austrian theory can be stated as unknowable due to the uncertainty. Nevertheless, it is not unimaginable because in Austrians the role of agents imagination, which is an unknown idea in neoclassical theory, plays pivotal role to create the future. According to Kirzner, the entrepreneurial discovery approach has echoed criticisms of equilibrium economics and have deployed criticisms in seeking to demote the concept of perfect competition from its position of dominance in modern neoclassical theory in order to replace it by notions of dynamic competition. (Kirzner, 1997, p.64) The entrepreneurial discovery approach has been affected by the work driven from Mises and from Hayek. In terms of Mises view, he believed that the market is regarded as entrepreneurially driven process under Austrians. Moreover, Hayek focuses on the role of knowledge and its enhancement throughout the market interaction. For Mises, entrepreneurship is human action seen from the aspect of the uncertainty inherent in every action (Mises, 1949, p.255) He, also, focus on the importance of entrepreneur who is always every actor in any real and living economy. According to Kirzner (1997), each decision made by neoclassical theory is made within a without doubt known framework. Consequently, it has believed that in neoclassical idea, there is no specific role and opportunity for entrepreneurship differed from Austrian microtheory. It means that, simply speaking; there is nothing entrepreneur can do. In this manner, it shows that whereas each neoclassical decision market operated in a world of given price and output data, the Austrian entrepreneur operates to change price/output data. (Kirzner, 1997, p.70) Now, the essay will focus on the Austrian criticism of the equilibrium idea of the standard neoclassical theory. As Kirzner (1997) mentioned neoclassical economics operates on the assumption that the world reflects the relationships that would prevail in such equilibrium models with the model of competitive equilibrium being the favourite one However, generally speaking, the Austrian approach disagrees and criticises this approach to understanding markets. According to Kirzner (1997), he has believed that the Austrian theory is based on individuals whilst the neoclassical theory considers the individual decision as a mechanical exercise in constrained maximisation. Therefore, it has believed that the process of competition is open-ended for Austrians but not for neoclassical theorists. As Kirzner (1997) argued, Within the neoclassical theory, the only explanatory means for understanding prices and outputs is to admit equilibrium theory. However, under Austrian concepts, it cannot be acceptable. Post-Keynesian economics is essentially a response to the failures of neoclassical theory and its inadequate characterisation of economic activity. (Davis, 1987, p.552) Now, the essay will discuss the significance of Post-Keynesian criticism of the standard neoclassical view of competition. Post-Keynesian economics has passed through the important initial change of mounting a concerted critique of mainstream economics (Arestis, 1996, p.11) In terms of alternative theories of competition, Post -Keynesians are defined as two key factors; which are dominant firms and administered prices unlike neoclassical theory. However, by and large, Post-Keynesians, who are a various set of economists, do not have generally accepted theory of competition. Nevertheless, Kalecki, who set the main tradition of Post-Keynesian theory, argued that the majority of Post-Keynesians maintain the above outlined classical cross-over dynamical process only for the primary sector of the economy characterised by a large number of producers, rigid supply in the short run, and flexible prices, which are demand determined (Kalecki, 1969, p.11) Moreover, uncertainty, is one of the most key factors of Post-Keynesians concern, is regarded as a reflection of real-world decision-making. In terms of Lavoies view, he indicated that Post-Keynesians have noted that oligopolies constitute their representative Post-Keynesian industry. They believed that oligopoly is the general state in most markets. Under Post-Keynesian theory, prices are decided by dominant firms not by markets. In this manner, it has believed that prices are administered in accordance with firms objectives, more particularly, prices of finished goods are set by a mark-up pricing on some measure of unit costs not by market clearing prices. Lavoie argued that the issue of the domain of validity of the Post-Keynesian firm by saying that Post-Keynesians assert that there are hardly any markets where prices are not administered by firms. As a result, he indicated that most industries are to some extent imperfect or monopolistic markets, even those that at first sight might appear to be competitive. (Lavoie, M, 1992, p.98) Generally speaking, economic movements in real markets cannot fully explain by one specific theory. For example, according to Davis (1987), in the 1980s the number of individuals both in and outside economics has come to perceive the world beset by economic crisis. However, orthodox neoclassical theory has been largely unresponsive to these developments. Therefore, we need alternative theory to response the problems such as Austrian theory and Post Keynesian theory. We have focused on tree theory, which are standard neoclassical view, Austrian theory, and Post-Keynesian view of competition. Austrian view of competition emphasises on the entrepreneurial rivalry to explain competition whilst Post-Keynesians are determined by dominant firms and administered prices theories. The significance outcome we need to focus in the essay is to evaluate the relevance of the neoclassical orthodoxy, Post Keynesian, and Austrian theories of competition. Therefore, we can examine the appropriate way to contribute problems occurred.

My Antonia Essay: Women on the Frontier -- My Antonia Essays

Women on the Frontier in My Ántonia In 1891, marking the elimination of "free land," the Census Bureau announced that the frontier no longer existed (Takaki, A Different Mirror, 225). The end of the frontier meant the constant impoverishment, instead of the wealth they had dreamed of, for a large number of immigrants from the Old World: they came too late. My Ántonia, however, illuminates another frontier, a frontier within America that most immigrants had to face. It was the frontier between "Americans" and "foreigners." The immigrants were still "foreign" to the "Americans" who came and settled earlier. They had to overcome the language and cultural barrier and struggle against the harsh conditions of life. The novel focuses on the ironic moment that the frontier spirit - a uniquely American one - is realized through "foreigners." Furthermore, it is women, the "hired girls," who are put in the foreground in the novel. What has made America is the foreign within, or rather, the foreign women on the fron tier. The division between the "Americans" and the "foreigners" is found throughout the novel. Even though naturalized, immigrants are still "Bohemians," "Russians," "Norwegians," and so on. They are foreigners in conception as Jim Burden's grandmother says, "If these foreigners [Norwegians] are so clannish, Mr. Bushy, we'll have to have an American graveyard that will be more liberal-minded...."(emphasis mine 73). According to her, the demarcation between foreigners and Americans is purely cultural: as far as foreigners are not clannish and liberal-minded like "Americans... ...an: the heterogeneity within one Bohemian-American family. Children learn Bohemian, the parents' mother tongue, first, and English when they go to school. They eat both American and Bohemian food. Mother from country and father from city, children are open to a wide experience than their parents. Ántonia's first daughter, although married and left the house, is another significant heterogeneity of the family. As the first Mormons scattered sunflowers seeds on their ways to freedom, Ántonia, a woman on the frontier, has raised many future citizens of America. Even though they claimed the end of the frontier, her children might confront another kind of frontier, but it is clear that it is not the same frontier on which their mother has had to stand. The frontier comes back, but always in a different shape.

The Digital Divide Essay -- Technology Society

The Digital Divide A new generation is forming the way its members will be written into history books. These are the members of the digital culture, a lifestyle relying on the use of technology and the Internet as a tool of communication and information-sharing. Nevertheless, as with the generations of the past, some individuals are not participating in this new cultural experience. It is common knowledge that some citizens do not use the Internet. Many do not use the Internet simply due to economic or social restrictions that prevent them from easily accessing the technology. However, what is not as common is why some members of our society are even choosing not to use the Internet. â€Å"Access, Civic Involvement, and Social Interaction† from the American Behavioral Scientist compare users and nonusers of the Internet across the United States: â€Å"8% were dropouts in 1995, 11% in 1996, 10% in 1997, and 11.5% in 2000† (Katz et al., Access 411). http://www.sci ls.rutgers.edu/~jimkatz/publications.htm No matter how small the statistic is, a choice not to use the Internet must have legitimate reasons and may result in conflicting effects. However, while it shows the amount of never users to be shrinking, the amount of former users is growing, implying that some people are already logging off the Internet while most are logging on. A lack of participation in the digital culture could have an effect on society, including both those who use the Internet, and those who do not. It is possible that either users or nonusers could have an advantage in the end due to their choice. Although the numbers are a minority, the nonusers must be analyzed and predictions need to be made about the reasons and effects of not... ...aythornthwaite, Caroline. â€Å"The Internet in Everyday Life.† American Behavioral Scientist. Vol. 45 No. 3, November 2001 363-382. Katz, James, and Philip Aspden. Communications of the ACM. Vol. 40 No. 4. April 1997. Katz, James, Ronald Rice, and Philip Aspden. â€Å"Access, Civic Involvement, and Social Interaction.† American Behavioral Scientist. Vol. 45 No. 3, November 2001 405-419 National Telecommunications and Information Administration. â€Å"A NATION ONLINE: How Americans Are Expanding Their Use Of The Internet.† September 2001. 21 February 2003 http://www.ntia.doc.gov/ntiahome/dn/html/Chapter8.htm Sources Consulted www.icdri.org/technology/ indexbp.htm www.foreignpolicy.com/issue_janfeb_2002/ digital_divide.html www.cliffsnotes.com/internet/ www.tpj.org/reports/luddites02/ luddites02.jpg www.executive.govt.nz/minister/ maharey/divide/01-01.htm

Anthem Essay -- essays research papers

  Ã‚  Ã‚  Ã‚  Ã‚  Anthem Essay   Ã‚  Ã‚  Ã‚  Ã‚  As one reads Ayn Rand’s significant quotes from the story of anthem, there is always a main theme that is trying to escape, just as Prometheus escaped in her story. All three of the listed quotes work as a trio to sing that We; as society, works to defeat individuality. The quotes emphasize that we cannot survive without individualism and being alone brings out our unique personalities. It is true that all the quotes work as one, but at the same time they have their own individualism. Each quote holds a purpose of its own and the author wants to express the quote to each persons understanding. Rand’s quote, â€Å"The word ‘We’†¦ crushes all beneath it, and that which is white and that which is black are lost equally in the tray of it,† implies that the black and white are the independent people in society. It is shown that as people are made on in society by gathering they lose their independence. As one all the minds of the people mix their black and white paint to produce a lost tray. They no longer have their own ideas, but now they have a conclusion of everyone’s ideas All the unique qualities of the people are crushed and the group gets all the credit for being unique. People do not want to be put together and treated equally. People want to be treated with respect for what they have done. In the novelette, Prometheus invents electricity by using his own mind. He wants credit for this invention and wou...

Implementation of Risc Processor in Fpga Using Verilog Essay

Reduced instruction-set computers (RISC) are designed to have a small set of instructions that execute in short clock cycles, with a small number of cycles per instruction. RISC machines are optimized to achieve efficient pipelining of their instruction streams. The machine also serves as a starting point for developing architectural variants and a more robust instruction set Designers make high-level tradeoffs in selecting an architecture that serves an application. Once architecture has been selected, a circuit that has sufficient performance (speed) must be synthesized. Hardware description languages (HDLs) play a key role in this process by modeling the system and serving as a descriptive medium that can be used by a synthesis tool. 2. RISC (Reduced Instruction Set Computer) The nature of RISC architecture and semiconductors rapid technical improvements, RISC embedded platforms have become the best choice for embedded applications. RISC performance characteristics: Power Critical Battery powered and typically less than 2 Watts of power consumption for a whole SBC using an ARM processor, compared to around 15+ Watts for a x86-based SBC. Space Critical With a low power solution, the main system can fit into very compact space, eliminating heat dissipation concerns. Environmental Critical Because of the lack of heat generation, the RISC system can be fully enclosed for total protection from the environment Cost Critical RISC embedded solutions usually come with application-oriented processors that provide a lower cost of ownership because of faster time to market, less development risk and greater overall added value. Typical RISC applications: †¢ Industrial mobile platforms †¢ Touch based Human Machine Interface (HMI) †¢ Point of information (POI) or Point of Scales (POS) †¢ In vehicle – Telemetric †¢ Data collector †¢ Security controller 2.1 STEPS INVOLVED IN THE PROJECT 3. 3. Architecture of RISC Stored Program Machine [pic] The machine consists of three functional units: †¢ Processor †¢ Controller †¢ Memory Program instructions and data are stored in memory. In program-directed operation, instructions are fetched synchronously from memory, decoded, and executed to âž ¢ operate on data within the arithmetic and logic unit (ALU) âž ¢ change the contents of storage registers âž ¢ change the contents of the program counter (PC), instruction register (IR) and the address register (ADD_R) âž ¢ change the contents of memory, âž ¢ Retrieve data and instructions from memory control the movement of data on the system busses. The instruction register contains the instruction that is currently being executed. The program counter contains the address of the next instruction to be executed and the address register holds the address of the memory location that will be addressed next by a read or write operation 3.1 RISC_SPM: Processor The processor includes registers, datapaths, control lines, and an ALU capable of performing arithmetic and logic operations on its operands, subject to the opcode held in the instruction register. A multiplexer Mux_l, determines the source of data for Bus_l, and a second mux, Mux_2, determines the source of data for Bus_2. The input datapaths to Mux_l are from four internal general-purpose registers (RO, Rl, R2, R3), and from the Pc. The contents of Bus_l can be steered to the ALU, to memory, or to Bus_2 (via Mux_2). The input datapaths to Mux_2 are from the ALU, Mux_l, and the memory unit. Thus, an instruction can be fetched from memory, placed on Bus_2, and loaded into the instruction register. A word of data can be fetched from memory, and steered to a general-purpose register or to the operand register (Reg_Y) prior to an operation of the ALU. The result of an ALU operation can be placed on Bus_2, loaded into a register, and subsequently transferred to memory. A dedicated register (Reg_Z) holds a flag indicating that the result of an ALU operation is 0. 3.2 RISC_SPM: Controller The timing of all activity is determined by the controller. The controller must steer data to the proper destination, according to the instruction being executed. Thus, the design of the controller is strongly dependent on the specification of the machine’s ALU and datapath resources and the clocking scheme available. Here a single clock is used, and execution of an instruction is initiated on a single edge of the clock (the rising edge). The controller monitors the state of the processing unit and the instruction to be executed and determines the value of the control signals. The controller’s input signals are the instruction word and the zero flag from the ALU. The signals produced by the controller are identified as follows: [pic] Thus the control unit âž ¢ determines when to load registers âž ¢ selects the path of data through the multiplexers âž ¢ determines when data should be written to memory âž ¢ Controls the three-state busses in the architecture. RISC SPM: Instruction Set The machine is controlled by a machine language program consisting of a set of instructions stored in memory. So, in addition to depending on the machine’s architecture, the design depends on the processor instruction set (i.e., the instructions that can be executed by a program). A machine language program consists of a stored sequence of 8-bit words (bytes). The format of an instruction of RISC_SPM can be long or short depending upon the operation. Short instructions have the format | opcode | source | destination | | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 0 | Each shot instruction requires one byte of memory. The word has a 4-bit opcode, a 2-bit source register address, and a 2-bit destination register address. Long instructions have the format | opcode | source | destination | | 0 | 1 | 1 | 0 | 1 | 0 | Don’t |Don’t | | | | | | | |cares |cares | | address | | 0 | 0 | 0 | 1 | 1 | 1` | 0 | 1 | A long instruction requires 2 bytes of memory. The first word of a long instruction contains a 4-bit opcode. The remaining 4 bits of the word can be used to specify the address of a pair of source and destination registers, depending on the instruction. The second word contains the address of the memory word that holds an operand required by the instruction. The instruction mnemonics and their actions are limited below. Single-Byte Instructions †¢ NOP: Here no operation is performed; all registers retain their values. The address of the source and destination registers is dint care’s, they have no effect. †¢ ADD: Adds the contents of the source and destination registers and stores the result into destination register. †¢ AND: Forms the bitwise-and of the contents of the source and destination registers and stores the result into the destination registers. †¢ NOT: Forms the bitwise-and of the contents of the source register and stores the result into the destination register. †¢ SUB: Subtracts the contents of the source register from destination register and stores the result into source register. Two-Byte Instructions †¢ RD: Fetches a memory word from the location specified by the second byte and loads the result into the destination register. The source register bits are don’t cares which means that they are unused. †¢ WR: Writes the contents of the source register to the word in memory specified by the address held in the second byte. The destination register bits are don’t cares which means that they are unused. †¢ BR: Branches the activity flow by loading the program counter with the word at the location (address) specified by the second byte of the instruction. The source register bits and the destination register bits are don’t cares which means that they are unused. †¢ BRZ: Branches the activity flow by loading the program counter with the word at the location (address) specified by the second byte of the instruction if zero flag register is asserted. The source register bits and the destination register bits are don’t cares which means that t hey are unused. Instruction set of RISC_SPM machine | Instruction | Instruction Word | Action | | | Opcode | Source | Destination | | | NOP | 0000 | | | None | | ADD | 0001 | src | dest | dest