Relational Calculus Essay Example for Free

Relational Calculus Essay Introduction Procedural Query language query specification involves giving a step by step process of obtaining the query result e.g., relational algebra usage calls for detailed knowledge of the operators involved difficult for the use of non-experts Declarative Query language query specification involves giving the logical conditions the results are required to satisfy easy for the use of non-experts Prof P Sreenivasa Kumar, Department of CSE, IITM. 1 TRC – a declarative query language Tuple variable – associated with a relation ( called the range relation ) †¢ takes tuples from the range relation as its values †¢ t: tuple variable over relation r with scheme R(A,B,C ) t. A stands for value of column A etc TRC Query – basic form: { t1.Ai1, t2.Ai2,†¦tm.Aim | ÃŽ ¸ } predicate calculus expression involving tuple variables t1, t2,†¦, tm, tm+1,†¦,ts specifies the condition to be satisfied Prof P Sreenivasa Kumar, Department of CSE, IITM. 2 An example TRC query student (rollNo, name, degree, year, sex, deptNo, advisor ) department (deptId, name, hod, phone ) Obtain the rollNo, name of all girl students in the Maths Dept (deptId = 2) {s.rollNo,s.name| student(s)^ s.sex=‘F’^ s.deptNo=2} attributes required in the result This predicate is true whenever value of s is a tuple from the student relation, false otherwise In general, if t is a tuple variable with range relation r, r( t ) is taken as a predicate which is true if and only if the value of t is a tuple in r Prof P Sreenivasa Kumar, Department of CSE, IITM. 3 General form of the condition in TRC queries Atomic expressions are the following: 1. r ( t ) -true if t is a tuple in the relation instance r 2. t1. Ai t2 .Aj compOp is one of {, ≠¥, =, ≠  } 3. t.Ai c c is a constant of appropriate type Composite expressions: 1. Any atomic expression 2. F1 ∠§ F2 ,, F1 ∠¨ F2 ,  ¬ F1 where F1 and F2 are expressions 3. (∀t) (F), (âˆÆ't) (F) where F is an expression and t is a tuple variable Free Variables Bound Variables – quantified variables Prof P Sreenivasa Kumar, Department of CSE, IITM. 4 Interpretation of the query in TRC All possible tuple assignments to the free variables in the query are considered. For any specific assignment, if the expression to the right of the vertical bar evaluates to true, that combination of tuple values would be used to produce a tuple in the result relation. While producing the result tuple, the values of the attributes for the corresponding tuple variables as specified on the left side of the vertical bar would be used. Note: The only free variables are the ones that appear to the left of the vertical bar Prof P Sreenivasa Kumar, Department of CSE, IITM. 5 Example TRC queries Obtain the rollNo, name of all girl students in the Maths Dept {s.rollNo,s.name | student(s) ^ s.sex=‘F’ ^ (âˆÆ' d)(department(d) ^ d.name=‘Maths’ ^ d.deptId = s.deptNo)} s: free tuple variable d: existentially bound tuple variable Existentially or universally quantified tuple variables can be used on the RHS of the vertical bar to specify query conditions Attributes of free (or unbound ) tuple variables can be used on LHS of vertical bar to specify attributes required in the results Prof P Sreenivasa Kumar, Department of CSE, IITM. 6 Example Relational Scheme student (rollNo, name, degree, year, sex, deptNo, advisor) department (deptId, name, hod, phone) professor (empId, name, sex, startYear, deptNo, phone) course (courseId, cname, credits, deptNo) enrollment (rollNo, courseId, sem, year, grade) teaching (empId, courseId, sem, year, classRoom) preRequisite (preReqCourse, courseID) Prof P Sreenivasa Kumar, Department of CSE, IITM. 7 Q2 Q3 Q4 Q5 Example queries in TRC (1/5) 1)Determine the departments that do not have any girl students student (rollNo, name, degree, year, sex, deptNo, advisor) department (deptId, name, hod, phone) {d.name|department(d) ^  ¬(âˆÆ' s)(student(s) ^ s.sex =‘F’ ^ s.deptNo = d.deptId) Prof P Sreenivasa Kumar, Department of CSE, IITM. 8 Examples queries in TRC (2/5) Schema 2)Obtain the names of courses enrolled by student named Mahesh {c.name | course(c) ^ (âˆÆ's) (âˆÆ'e) ( student(s) ^ enrollment(e) ^ s.name = â€Å"Mahesh† ^ s.rollNo = e.rollNo ^ c.courseId = e.courseId } Prof P Sreenivasa Kumar, Department of CSE, IITM. 9 Examples queries in TRC (3/5) Schema 3)Get the names of students who have scored ‘S’ in all subjects they have enrolled. Assume that every student is enrolled in at least one course. {s.name | student(s) ^ (∀e)(( enrollment(e) ^ e.rollNo = s.rollNo) → e.grade =‘S’)} person P with all S grades: for enrollment tuples not having her roll number, LHS is false for enrollment tuples having her roll number, LHS is true, RHS also true so the implication is true for all e tuples person Q with some non-S grades: for enrollment tuples not having her roll number, LHS is false for enrollment tuples having her roll number, LHS is true, but RHS is false for at least one tuple. So the implication is not true for at least one tuple. Prof P Sreenivasa Kumar, Department of CSE, IITM. 10 Examples queries in TRC (4/5) Schema 4) Get the names of students who have taken at least one course taught by their advisor {s.name | student(s) ^ (âˆÆ'e)(âˆÆ't)(enrollment(e) ^ teaching(t) ^ e.courseId = t.courseId ^ e.rollNo = s.rollNo ^ t.empId = s.advisor} 5) Display the departments whose HODs are teaching at least one course in the current semester {d.name | department(d) ^(âˆÆ't)(teaching(t) ^ t.empid = d.hod ^ t.sem = ‘odd’ ^ t.year = ‘2008’)} Prof P Sreenivasa Kumar, Department of CSE, IITM. 11 Examples queries in TRC (5/5) Schema 6)Determine the students who are enrolled for every course taught by Prof Ramanujam. Assume that Prof Ramanujam teaches at least one course. 1. {s.rollNo | student (s) ^ 2. (∀c)(course (c) ^ 3. ((âˆÆ't),(âˆÆ'p)( teaching(t) ^ professor(p) ^ 4. t.courseId = c.courseId ^ 5. p.name = â€Å"Ramanujam† ^ 6. p.empId = t.empId )) → 7. (âˆÆ'e) (enrollment(e) ^ 8. e.courseId = c.courseId ^ 9. e.rollNo = s.rollNo) 10. ) 11. } Prof P Sreenivasa Kumar, Department of CSE, IITM. 12 Problem with unrestricted use of Negation What is the result of the query: {s.rollNo |  ¬ student(s)} ? Infinite answers !! Unsafe TRC expression : Any expression whose result uses â€Å"constants / values† that do not appear in the instances of any of the database relations. Unsafe expressions are to be avoided while specifying TRC queries. Prof P Sreenivasa Kumar, Department of CSE, IITM. 13 Expressive power of TRC and Relational Algebra It can be shown that both Tuple Relational Calculus and Relational Algebra have the same expressive power A query can be formulated in (safe) TRC if and only if it can be formulated in RA Both can not be used to formulate queries involving transitive closure find all direct or indirect pre-requisites of a course find all subordinates of a specific employee etc. Prof P Sreenivasa Kumar, Department of CSE, IITM.

Discuss Marx Concept Of Alienation Sociology Essay

Discuss Marx Concept Of Alienation Sociology Essay Alienation is the idea that a working class man is alienated from his essential nature and individuality, economic and spiritual being Churchich (1990).This essay will outline what alienation is and examples given by Marx and his view on who is to blame, the four main concepts of alienation will be discussed as well as support and criticism. Marx puts alienation down to the divide in labour and private property which is seen as dehumanizing society. Marx based his ideas on Hegel and Feuerback however also criticized their views. He agreed with Hegels idea that people can become alienated from themselves but doesnt believe people alienated themselves. Feuerbacks views from The Essence of Christianity 1814 were that people view of god is the means of how people view themselves and when people worship god they in fact worship themselves. He believes when people place something higher than themselves they consequently become alienated from their being. Marx believed religion tries to divert peoples attention away from the truth about alienation. Marxs view of alienation in labour can be interpreted as the way a worker feels a sense of foreignness to products of their own labour. This is experienced by working class people in factories who were put into long and awful conditions of work to survive. They were uneducated, in unfortunate positions, treated badly and poorly paid. Due to these conditions the workers started to underbid one another to get a days work in order to support their families. Marx thought the working class factory workers need to join hands to make an improvement on their working conditions. He suggests that workers need to obtain their rights and require more pay and better working conditions. Marx, in his  Estranged Labor from Economic and Philosophic Manuscripts believed a worker becomes similar to a alienated animal. He believes the workers labour belongs to someone else so a man only through his animal functions can freely express himself. These functions are everyday tasks in their own house, drin king and eating, reproducing and so on. Marx believes a worker feels more like an animal in his human functions so eventually animal functions become human functions and vice versa. Marx alienation notion is in theory quite influential and powerful because it gives an account of how human life is degraded however it makes clear that it is not expected or natural. It provides a detailed explanation of the experiences of labour. Marxs theory of alienation shows the results of capitalist production on the physical and psychological state of people and on the social situations they engage in or are part of. This was Marx method of seeing his contemporaries so he could understand and explain how they interact and relate to each other. Marx proposed 4 types of alienation based on a regular factory worker under capitalism. There are two divisions in the private ownership system; workers with no property and owners of property. Due to this divide in society workers not only are the workers poor but they also have to suffer alienation from the world. The first type of alienation is the concept of what a person produces or makes does not belong to them. The idea that everything produced by a person only benefits the world which they do not fit into. Rubin (1990) outlines a quantitative and a qualitative part to how goods are produced he said the worker doesnt really get paid for the amount of labour put in so is exploited This benefits capitalism as the more alienated the worker becomes the more work he does. Qualitatively, the worker puts creativity into the product he creates however is not given creative labour to replace it. He believes that with capitalism, work doesnt inspire or introduce workers to new things; i nstead it takes away a persons energy and wears them out. An individual helps to make all these objects that he does not own himself which makes them feel and look smaller compared to this world. They may help create an expensive car, build houses or make expensive clothes which they cannot afford. The second form of alienation is the work process. It is separation of the worker from the work itself for example the job performed does not belong to them instead it is a way of survival in the world. They are not doing the job for themselves but for someone else. This kind of work does not allow a person to become creative as it does not come from his own accord as they are following instructions from others, instead indicates a loss of self worth for the worker. For example when a person works at a call centre doesnt create anything, follows the same method, copies a script and doesnt get to make any important decisions. It becomes dull and automatic so the mind doesnt have to be used. The worker doesnt have control over the conditions and organization of work nor do they have any control on how it influences them psychologically or physically. This reduces a persons ability to be creative. The third type of alienation is the alienation from other humans. Instead of spending time with people you want you have to work with people whether you do or do not like them. In society there is some resentment or dislike between the different class structures which is partly to blame for this type of alienation. People become alienated from people who take advantage of their labour. According to Cox (1998) Marx said if the worker is tormented by his work then it must give delight to another. If a man views his activity as unfree and not something they wish to do then he views it as under the order, force or oppression of another person. Workers are linked to people through the products they produce however dont personally connect to them. Each day people may wear clothes, eat food, live in houses, use tools created by people who have worked to make them however they are not known personally instead they are known only through the products brought and consumed. Man doesnt see his f ellow man as equal instead as higher or lower than them in society. People dont know each other individually but as products of capitalism however the capitalist society is more individual and independent compared to the working class. According to Korkotsides (2007) People take things for their own use irrespective of how it was produced and under what conditions or circumstances. As Marx supposed that people in working class are generally the most alienated, the liberation from alienation will have to begin with liberating the working class. Marx believed production of goods frequently makes new desires to use human powers for money and benefit instead of improving the abilities of humans. People see each others as rivals and as inferior or senior to them. The fourth type of alienation is a persons alienation from species-being, or human individuality. Humans base their life around work it is an essential part of life for the working class. Human identity is formed by doing work without thinking for example when doing the same job day in day out a person becomes lifeless in terms of personality and identity and becomes more like a robot. In the private ownership system a worker is alienated from their purpose of life and individuality essential for a human being. What makes a human is the skill to shape the world around by thoughts, abilities and actions however under the capitalist society this is not always the case. Labour is pressured and forced and does not relate to a persons personal preference or interests. According to Cox (1998) Marx suggests workers benefits capitalism by constantly producing for them however even though he helped make them successful and wealthy doesnt get much recognition or benefit from it. In his manuscr ipt he said that capitalists make palaces for the rich but hovels for the working class. It throws some workers into cruel ways of labour and makes some workers into machines. It gives them brainpower but makes stupidity and cretinism at the same time. Humans have socials skills so they can work together to develop on their interests however capitalists divide humans and put all their effort and interests into labour. When a capitalist is bettering production in their factory, without knowing they can be reducing profit rates for their own class by slowing down the profit rate. A company may produce to accomplish a sharp demand, however when the products are in store they may find other companies have already done it first. Sometimes more than what is required is produced and is not needed. Recessions in capitalism means labourers consume less as more then whats required is produced this is down to their work being too productive. Marx view of a content person was not someone with many material possessions but someone who is happy in their life in terms of good emotional contact with other people, education, and a person who may not have many possessions but is not scared to say what he feels. An unproductive worker who dosent wants to contribute to political processes in Marx eyes is a victim of alienation. He highlights what a person can be and how they should be independent and not concentrate on what they possess. Marx view is supported by Kant and Fiche who thought workers should stop being inactive like the workers were in history and start becoming active producers of their own future. Marx alienation concept is influenced by Hegel therefore there are similarities with both theories. Hegel thinks self-alienation is to be conquered with the advance and development of history Sayers (2003). They both agree that the spiritual and social parts of alienation and their how they can be defeated are combined. On the other hand Hegel believed alienation is defeated in society at present which Marx disagreed with. According to Sean Sayers (2003) Kierkegaars also backed Marx view he believed man today is alienated from one self and in mankind due to prejudice and lack of individuality. According to Churchich (1990) alienation was seen as mainly religious and it had more of a psychological meaning linked to the soul however Marx disagreed believing alienation is down to man not nature or god. Marx disagreed with Hegels idea that alienation is originated in nature of human life and says he reduced history to just thoughts, observing real events and objects merely as manifestations of spirit. A Humans contentment and needs have to be linked to the forms of production in order to be measured. Humans are different to animals in terms of their needs because nature decides an animals natural needs are and a humans needs are essentially social and historically established by themselves. He believed creativity separated humans from animals. Marx argues a persons consciousness of the requirement for certain things is a product of concrete historical situations and cant be decided by just thoughts. Marx and Smith had a similar thought as they worked on putting an end to capitalists exploiting the working class and believed society and economy ought to centre their attention on making peoples lives better. Despite this they do differ on the means of economy. Both Smith and Marx see labour as divided and see it as the key feature of capitalism. According to Meek (1977) While Smith views capitalism as an advantage to not only society but on a person too. He believes a person sees power as a natural need; their wish is to stand out, elevate themselves and obtain a source of wealth. Marx sees capitalism purely as unnatural and a disadvantage to a worker. Marx believed capitalists have a strong social and economic foundation and the only way to conquer alienation is when this changes. Support for Marx idea that alienation is dividing a person from their labour is for example a person works to earn a living and will get paid but ultimately the company profits from this. The worker wont earn as much money compared to the amount of work put in therefore the company will get more profit by underpaying the worker causing the worker to disconnect. A criticism of Marxs alienation theory is its seen as not scientific and cant be used for experimental research. The problem with this criticism is Marxs alienation concept is centred on historical tests and it studies labour when it is not controlled by authority. Another criticism is Marx states that nearly all work is alienated and the worker does not benefit from their work however this may not always be the case for some. If a mechanic fixes a car he may not have one himself however he will learn a skill which can be useful for him in the future or may have personal satisfaction from doing the job to the best of their ability. Another example is that of a blacksmith may own a shop working the hours he wants, deciding any important decisions as well as setting his own working environment, creates his own product and makes the decision of how they sell. Most importantly the communication with customers is more of a personal nature than professional. There are many examples of modern alienation for example when a worker doesnt get enough from capitalist work he may take out loans from banks to buy the products they create, for example a big house or a car. They are exploited by mortgages and loans however if they become unemployed it is all taken away from them. The resolution to alienation isnt to look back at history but to recognize what can be done in todays society and how it can be transformed. A book by Oliver James describing the Affluenza virus supports Marx where he blames capitalism for creating alienation. The Affluenza virus is sets of principles that makes people more open to emotional distress. This is done by putting importance on obtaining wealth, goods and fame. He suggests changing the way people live their life to conquer this which isnt always easy for people to do. Alienation isnt that easy to solve when oppression and exploitation exist in society. To summarize Marx early works was influenced by Hegel and Feuerbach. His alienation theory is the debate that the life of work in a capitalistic society disadvantages them of enjoyment or creativeness of labour. He saw creativity as a vital aspect of living and this kind of labour not only alienates them from their work but also from their independency in effect causing dehumanization. The example of factory workers supports Marxs view that capitalists exploit the working class and the four concepts of alienation workers go through describe how they are alienated. According to Marx alienation will continue to exist along as capitalism is around. References Churchich, N, (1990). Marxism and Alienation. 1st ed. U.S: Associated University Presses. Sean Sayers. (2003). The Concept of Alienation in Existentialism and Marxism. [ONLINE] Available at: http://www.kent.ac.uk/secl/philosophy/articles/sayers/alienation.pdf. [Accessed 22 November 12]. Ronald L. Meek. (1977). Smith, Marx After. [ONLINE] Available at: http://cas.umkc.edu/econ/economics/faculty/henry/courses/Econ506/Readings/Meek.SmithMarx.pdf. [Accessed 23 November 12].

The Role Of Electronic Communication Today

The Role Of Electronic Communication Today Introduction Communication plays a very important role in our daily lives. When we interact with others we use different means of interaction. Communication has advanced from simple speech and cave paintings to the World Wide Web and many types of touch screen technology. With the recent creation of electronic communication, we finally could talk to each other at any place around the world in real time instantaneously. Another wonderful advantage it gives to us is the ability to use our time more to efficiently. However, electronic communication has drawbacks as well. For example makes it easier for bad people to make their deed more organized and efficient. History of Communication We have advanced significantly in our ability to communication. The first forms of communication our ancestors had were cave painting and face to face meeting. A form of writing was invented in 3500 B.C., which helped keep track of information, historical events, and tell about the citys laws. Our alphabetical letters (a, b, c, ect.) were invented in Ancient Egypt around 2000 B.C. The main problem for our ancestors was long distance communication. Mail. Our ancestors used a mail system for a long time, a system we still use today. They used it so they didnt have to travel every time which is very costly, immensely time consuming, and dangerous. Mail is pretty simple: you just write a letter, and give it to a post office closest to you to send. The post office used horses and ships to deliver the mail to the destination. Ships were the fastest types of delivery, but they used horses for areas without sea. A good example of a local mail system is the Pony Express that was used by the 13 colonies to deliver mail and news in the mid 1700s. The Pony Express was a delivery service of mailmen that travel by horse. The world also used ships to send information faster than by land, however it took take months to get to their destination. Telegraph. The telegraph was the first device that let us use electronic communication. Samuel Morse invented the telegraph in 1837, but the first commercial telegraph was invented in 1844 in the U.S.A. It was like a fax machine except there was no keyboard, it sent dotted messages, and it was wired. However, it was the first to have immediate replies. Soon businesses realized that the telegraph could really improve their business, but it was really expensive for two reasons. The first reason was that it was big and new, the second reason was that it needed a lot of wiring across the country that costs a fortune. What really helped the spread and popularity of the telegraph was the American Civil War. Since the North needed better advantages over the South, they needed the telegraph to send fast orders to the troops fighting in the west, on the border, or in the North. After the war more people got familiar with the telegraph and the wiring in the North was already there. In 1866, th ey even successfully made a cable from the U.S. to Europe that made fast electronic communication from North America to Europe possible. iPhone. Now, about 150 years later, we have excellent ways to communicate like the telephone, cell phone and the Internet with a laptop. Technology is continuously advancing. A recent advancement in electronic communication is the iPhone. The iPhone is a smart phone that is a touch screen and has the ability to access information on the Internet. Thanks to this phone we can save time and energy. The iPhone has a lot of awesome new features like the thousands or even tens of thousands of wonderful apps that are either free or cost $10 or less. It also has an excellent GPS system that even tells how much traffic each road has. The iPhone is a technological breakthrough. I once had an iPhone for one month, and out of all the cell phones I had, the iPhone was by far my favorite. Positive Effects and Aspects Well start with the positive aspects and effects. Now we use electronic communication for reasons including: Communication Saves time and energy A reminder Gaming Communication. First, it really improves are means of communicating to each other. First, communication gives us the ability to stay in touch anywhere at anytime. Also, it is more reliable and faster to transport important documents or news by mail or memory stick. Last, you could have immediate replies no matter where you are. Saves Time and Energy. First, the iPhone could give us direction in an unfamiliar area. Second it is easier to find and correct mistakes messages thanks to computers spell checks. It also increases the process of learning. A great example is how you taught me how to type correctly and faster when we are in two different states. They even have a really helpful touch screen computer ordering system, however it is in a couple restaurants. I went to one of these restaurants it was very good. You have the possibility to look at all the option on the menu, put topping, and order it anytime you wanted. It even has games on it you can play while you wait. The iPhone even makes the polices job easier. In the news, I heard this crazy report that someones iPhone was stolen and with a portable tracking system, the police found the thieves. Thats not the only case, there is another case when some thieves were stealing from a car, and the phone in his pocket accidentally calls 911, and thanks to t hat the police caught them. Good Reminder. Phone, email, and other types of electronic communication have special calendars and/or alarms that could remind you about: Appointments Meeting Family matters Special occasion Gaming. Games have always have been fun. Over the years gaming has advanced to a whole new level. In the 1990s they have made gaming systems that you can play storyline against computer. Now in the 21st century, you can play games against and talk to people around the world. For example, I have met a nice Canadian that lives in the second largest French-speaking town in the world, Montrà ©al. I have never met him face to face, but I have known him for well over a year and a half. Negative Aspects or Effects Of course if there are positive effects, there are negative effects from this technologic advancement: Your reputation is more vulnerable Over reliance Helps criminals also Problems with touch screens It increases the efficiency to Ruin any Reputation. Since the Internet is so vast, it is harder to keep information secret. A great example is how a teacher got fired for posting to her friends on Facebook that she hated her job and that her students parents were spoiled. If you make a mistake and send it, there are no ways you can stop it and it is easier for people to find your mistakes. A common example is a vending email, and you or someone else accidentally press send, and its immediately in the persons computer, since emails have search commands, so they could find that email a lot faster. You May Become Reliant on Technology. Reliance is not that big of a deal, but it could cause long-term problems. For example, a friend of mine has a portable GPS system and he uses it when he drives. A consequence of that is he doesnt even remember his friends addresses because he keeps using the GPS. Im a good example as well. When I was a little kid, I used to need to remember numbers, but with the addition of phone contacts in cell phones, I dont need to remember a single number. Now I dont know any of my friends numbers, only the numbers I remember are the ones I remembered when I was little kid: My parents cell phone numbers Our home number My parents office number 911 My dad has the same reliance as me, for most of his life, he remembered every number of his family and friends, but now all he remembers is their names in his contact list. It Could Help the Criminals as Well. The Internet is so helpful that it is even makes it easier for people to commit crimes. A great example is how terrorist use the Internet to find people to join their cause and it is a lot easier to send their messages without getting caught. It is also a lot easier to steal someones ideas and/report you just need to do three things: Search Copy Paste The Internet also made it possible for hackers to exist. Hackers go into any account steal the money, identity information, ect, and use it to profit themselves or frame others they dont like. It even helps people publish top-secret files. A great example is how Wiki Leaks published thousands of top-secret files about Afghanistan for the whole world to see, including terrorists. Touch screen problems. A touch screen is usually helpful, but there are problems with it. First, you need to clean the screen pretty often because when you touch it, it leaves fingerprints, which could block your sight or make it harder for the touch commands to work. Second, it is a lot more fragile, because glass is weaker than metal. Last if you scratch it, you need to either change the screen or just always look at the scratch. Conclusion All in all electronic communication is a great human achievement. We have gone a great way in our new breakthrough the iPhone. Although the advancement electronics has many drawbacks, it benefits have really helped our ancestors and us get to a new, better age. Now there are many types of advanced electronic communication that wed of never expected.

Late Anglo-saxon Period Kings :: essays research papers fc

Late Anglo-Saxon Period Kings of Wessex By the time Edward the Martyr took the throne in 975, Christianity was widespread throughout England and the rest of Britain. Edward was born in 963, and was just entering his teenage years when his father, Edgar, died. He made a claim to the throne, as the first son of the king. His half-brother Aethelred, son of the third wife, made another claim (qtd in Britannia 1). Edward was murdered when he rode to visit Aethelred at Corfe is Dorset. Aethelred’s vassals pretended to welcome Edward, and in doing so, stabbed him. It is safe to assume that Aethelred would not have instigated this incident, being a mere seven years of age at the time. Edward was later canonized by his brother and was known as King Edward the Martyr.   Ã‚  Ã‚  Ã‚  Ã‚  Following the assassination of his brother, Edward, Aethelred was forced upon the English throne at the age of ten. Aethelred was married twice. His first wife, Elfigfu of Mercia, bore him no less than eleven children. His second marriage to Emma of Normandy produced three children. Throughout his reign as King, he was hindered by the fact that he could not fully trust the support of his generals at a time when the Danish invaders were a constant threat to the English. In an act of futile appeasement, Aethelred attempted to stop Danish cravings by paying what was known as Danegeld. Danegeld was an annual tax believed to have been imposed originally to buy off Danish invaders in England (m-w 1). In 1009, however, the King of the Danes, Sweyn, decided that as well as keeping the territory, and monies he had taken from the English, that he would now take the whole country. Four years later, in 1013, Sweyn had control of England and Aethelred had fled to Normandy to s eek protection from Emma’s brother, Robert the Good. Sweyn died in 1014 and Aethelred reclaimed the English crown for another 2 years before his death at the age of 48 in 1016.   Ã‚  Ã‚  Ã‚  Ã‚  Following the death of Aethelred, there was a bloody war of succession expected to take place between Sweyn’s son, Cnut, and Edmund II, Aethelred’s son. This war, didn’t take place, however, simply because Cnut figured he could made do with Denmark and Norway.

The Gathering Text Response Essay example -- essays research papers

Text Response – Good Vs. Evil Good vs. evil is a widely explored theme in Isobelle Carmody's novel 'The Gathering'. It is most evident in the battle between the Chain and the Kraken, however the more sinister, subtler acts of evil occur when he attempts to make each member vulnerable by breaching their weaknesses. While the physical examples such as the final battle, the murder of The Tod and the violent acts by Buddha and his gang could certainly be classified as evil, it is my belief that the brainwashing of the students and the fanatical powers of illusion Mr. Karle wields are more insidious, swiftly inhabiting and manifesting in the minds of people in a way that is more powerful than any outright acts of violence. An example of how the evil within Cheshunt and Mr. Karle are influencing residents to commit heinous acts can be found on page 214 when Buddha murders Nathanial's dog in an attempt to render him susceptible to Mr. Karle's attempts to manipulate him. The Tod was ruthlessly killed by being doused in kerosene and then set alight. Page 214 reads as follows, â€Å"The match landed in his tail and flames swept forward up over him. Devoured him. He arched and coiled, yelping in pain and fright, and then he screamed, a long inhuman howl of agony and terror. For one terrible second, his eyes looked at me from out of the flames, bulging and pleading.† This horrific and terrifying event was interpreted by Nat as punishment due to Lallie's intervention of the night before whe...

Characteristics of Business Leadership

Characteristics of Business Leadership BUS302-024016 October 30, 2011 Characteristics of Business Management The purpose of this paper is to show a comparison of two successful businesses. Borders Books and Amazon. com are two companies that both sold books but used different methods in operating their businesses. Even though they both were successful businesses, both companies had different leadership styles, visions and goals. Out of the two businesses, only one remain successful and present today. In this paper, I will show how both businesses started, how the leaders differ in leadership styles and techniques, and how Amazon continues to be a great success today. Description of the Businesses I will describe each business and how each business started. I will also describe three main challenges each company faced while establishing or running the business. Amazon. com was founded in 1994 by Jeff Bezos as an online bookstore. As CEO he has built it into the largest retailer on the web, selling everything from groceries to electronics and shoes. Jeff Bezos was working in a quantitive analysis group at an investment firm, when he saw an opportunity to sell books on the internet. In 1994 he went on a cross-country drive from New York to Seattle to start Amazon. He typed his business plan as he went. And he picked up $300,000 dollars from his parents in Fort Worth, Texas. He set up his business in his garage and began selling books via the internet. His business became worth $4. 4 billion according to Forbes' latest billionaire rankings in 2009. Since the start of Amazon. om, Jeff Bezos came very close to failure. The company was on the brink of bankruptcy. Jeff Bezos lost a total of $550 million in startup cost by November 1999. But inspite of that, Time magazine named Jeff Bezos † Person of the year† a month later. Borders Books was founded by Louis Borders, who was the leader of Borders Books and got his start in Ann Arbor Michigan in 1971. Louis Borders and his brother Tom Borders opened a used bookstore, accord ing to the book eBoys by Randall Stross. Louis Borders had a degree in math from the University of Michigan. In his store, he went to work designing artificial intelligence software for managing the inventory of a supersize bookstore, and by doing so made opening more bookstores possible. For fifteen years he and his brother operated Border Books in Ann Arbor and sold software to other stores. Borders started opening more stores. In 1988, Borders recruited Robert DiRomualdo to lead the company's expansion. Roberts DiRomualdo was later credited with leading the company's rise to national prominence in the 1990s. In 1992, Kmart Corp; which bought Waldenbooks in 1984, purchased the 21-store chain for an estimated $190 million , the New York Times reported at that time. Once sold, Border Books went through several changes including the name changing to Borders Group Inc. and changes in CEOs. Between January 1998 to January 1999 Borders expanded by adding 52 superstores. This was the biggest one-year expansion in its history. By January 1999, the company had 256 superstores averaging $256 in sales per square foot. In May 1998, Borders launched an online presence for the first time. Borders had several different CEOs until Mike Edwards became interim CEO in January of 2010. Leadership Styles This paragraph will explain the leaders' leadership styles and discuss how they have adapted to cultural differences and how they operates their businesses effectively in global markets. Mike Edwards became interim CEO of Borders in January 2010. This was a time when sales were already at a decline and the company had already been close to filing bankruptcy but avoided it by cutting costs and conserving cash. The company was already at an organizational decline. Prior to him becoming CEO, Borders had already lauched an online presence for the first time in May 1998. Since then, severing ties with Amazon, the company launched a new Borders. com. So after Mike Edwards was named CEO of subsidiary Borders Inc. in June 2010, Borders launched e-book store, started selling e-readers and set strategies to get 17 percent market share in e-books within a year. Doing this online business was with a hope to increase sales nationally and globally. But I believe a mistake was made by continuing to run the business somewhat the same, but just cutting cost. Mike Edwards didn't make the changes necessary o adapt to cultural differences and was not able to operate the business effectively in global markets. Previously Borders had business base in Australia, New Zealand and Singapore but had to sell off its business in those areas. Due to the condition Borders was in when Edwards came on as CEO, didn't allow for a great chance of bouncing back from their losse s. Mike Edwards' style was to hurry and cut cost and to do quickly what he could to save the company. Really, he had no choice but to do this quickly. Jeff Bezos has a style of having a customer-focused culture and he continues to use the leadership methods they have used for years. He makes it difficult for some publicly traded companies to have the right strategy. He makes sure that Amazon. com follows different strategies to acquire business but at the same time adapting to any cultural differences that take place. He operates the business by reaching out to different global areas through his web based business. Jeff Bezos make sure he keeps up with the competition by changing the company's strategies quickly to adapt to any changes in technology, customer needs and competition. He believes that experimenting different things will attract different cultures. Jeff Bezos believes that cultures are very stable. New people who come to the company may stay or leave. But he states that overtime, you build up this momentum around a culture that is self-perpetuating. This is a way to adjust to to different cultural differnces as well. Leadership, Management, and Motivation Management is getting work done through others efficiently and effectively. Leading involves inspiring and motivating workers to work hard to achieve organizational goals. Jeff Bezos, who founded Amazon. com in 1994, states that his view is that every company requires a long-term view. He feels that if you're going to take a long-term orientation, you have to be willing to stay heads down and ignore a wide array of critics, even well-meaning critics. If you don't have a willingness to be misundertood for a long period of time, then you can't have a long-term orientation. He also states that you're also gonna have to have a willingness to repeatedly fail if you're gonna experiment. For some, this is a exciting and motivating culture. Also, he no longer makes all the plans. He has a group called the S Team that (Senior Team) which stays abreast of what the company is doing. This team meets for about four hours every Tuesday. And once or twice a year the S team gets together in a tw-day meeting to explore ideas. This is an example of group decision making. On the other hand, Mike Edwards' focus was to stick to the business plan that he said works. He stated that they were fighting to the end and hoping that a reorganization plan would be approved. By cutting back and closing some stores would help Borders to exit bankruptcy. He did state that Borders mistake was to open so many stores. He immediatley took action and began an aggressive cost-cutting plan to close stores and lay-off workers. Leader’s Impact Jeff Bezos made an impact on the world by allowing customers worldwide via the web to purchase books, and everything from groceries, electronics and shoes and more. This allowed customers to shop from the comfort of their own home. This was a great convenience for customers around the globe. Also, Louis Borders vision had an impact on the world as well. When Borders and his brother Tom started Borders Books, Louis Bothers took his knowledge and designed artificial intelligience that would later benefit other stores by selling them the software to use for their businesses as well. Boarder Books stores allowed customers to purchase all types of books and also to have an peaceful environment to enjoy reading their books. Borders Books later intergrated music and movies into some of their stores. Even though Mike Edwards didn't become CEO of subsidairy Borders Inc. until June 2010, he made an impact on the internal structure by taking drastic measures to save the company by closing alot of the stores and laying-off employees. This not only affected the employees but the consumers who shopped at Borders as well. All these drastic actions also affected the morale of the employees and stores that remained until Borders announced it's liquidation in July 2011. } References Bomey, Nathan (2011). Borders' rise and fall: a timeline of the bookstore chain's 40-year history. http://Ann Arbor. com/business-review/Borders-rise-and-fall-a-timeline-of-the-bookstore-chains-40-year-history Bomey, Nathan (2011). Exclusive interview with Borders

Fever And Headache Case Study Health And Social Care Essay

Prior to parturiency, the client chows balanced repasts daily. He takes Multivitamins. He drinks 8-12 spectacless of H2O daily. He does n't hold any nutrient allergic reactions. His lesions heal fast. Complete set of dentitions, does n't utilize dental plates. The client is DAT ( diet as tolerated ) diet with no dark colored nutrients. Elimination Pattern The client does n't hold trouble extinguishing. He does n't utilize laxatives. His stool is formed. He defecates one time or twice daily. No jobs experienced when urinating. His piss is normal in colour and sum. Upon parturiency, the client defecates one time day-to-day. Still no trouble urinating. Activity and Exercise The client has sufficient energy to make the day-to-day activities he desired. He jogs around their small town sometimes. He likes to read books during his trim clip. He can to the full take attention of himself. While in the infirmary, the client walks around his room. He feels weak most of the clip, because he is merely lying down. He watches telecasting while in the infirmary. Cognitive-Perceptual The client does n't hold hearing troubles and does n't utilize hearing AIDSs. He does n't have on reading spectacless. He normally decides for himself but seeks advice from his older sister. Sleep/Rest Before parturiency, the client does n't hold trouble kiping. He makes certain to acquire adequate remainder for the following twenty-four hours ‘s activities. He does n't see incubuss. Now, the client said that he was non able to kip good because he is really concerned about his wellness. He sleeps a small late and wakes up early the following twenty-four hours. Self-perception The client describes himself as simple and determined. He feels good about himself. He does n't let petty jobs to acquire the best of him. Role-Relationship The client lives with his sister and her household. They portion with the family disbursals. Whenever they encounter jobs, they sit down and discourse them. Sexuality-Reproductive The client is sexually active but refuses to speak about his sexual life. Coping/Stress Tolerance When stressed, the client tries to loosen up himself foremost before confronting the job because he might do determinations he will repent. He talks to his sister or close friends whenever he has jobs. He does n't take any medicines or drugs. He handles jobs maturely. Values/Beliefs The client is spiritual. He prays frequently, though seldom attends mass. He has programs for himself in the hereafter and he says he will make his best to accomplish them.Family AssessmentName Relation Age Sexual activity Occupation Educational Attainment C.G Wife 31 F Gross saless Manager College GraduateHeredoMaternal: None Paternal: NoneDevelopmental HistoryTheorist Age Task/Stage Patient Description Erikson 36 y/o Generativity vs. Stagnation The patient is concerned about others. He makes the most out of his clip. Freud 36 y/o Genital Phase The patient is sexually active. Piaget 36 y/o Formal Operationss The patient thinks about how to cover and work out jobs encountered. Kohlberg 36 y/o Post Conventional The patient is concerned about his single rights. Fowler 36 y/o Conjunctive Faith The patient is cognizant of the truth and takes the enterprise to detect it.Physical ExaminationHeight: 5'5 Weight: 70 kilogram Volt BP: 130/90 mmHg RR: 26 cpm PR: 72 beats per minute Skin Light brown in colour Birthmark on upper part of arm Uniform temperature in custodies and pess Skin turgor & lt ; 2 secs No lentigos Nails Pink nail beds Integral tegument environing the nails Blanch trial or capillary refill & lt ; 4secs Head and Face Head is round in form Symmetric facial characteristics Symmetric facial motions No facial hair No tangible multitudes, lesions, cicatrixs Eyess Eyebrows symmetrical and equally distributed, equal motions Eyelashs equally distributed Eyelids are integral, no stains ; symmetrical motion Students are every bit circular and reactive to illume Ears Color same as facial tegument, symmetrical Pinna recoils after it is folded No discharge Nose External olfactory organ is symmetric, unvarying in colour, non tender, no lesions, no discharges Nasal septum integral Maxillary and frontal fistulas non tender Mouth and Pharynx Outer lips symmetric, unvarying in colour, can purse lips Inner lips are pink No losing dentition, pinkish gums Tongue is in the centre, pink in colour, moves freely Neck Muscles are equal, caput centered Can travel cervix with no uncomfortableness No tangible multitudes Spinal column Spine is straight, shoulders and hips are at same tallness Thorax/Lungs Skin intact, no tenderness, no tangible multitudes ( + ) wheezes Cardiovascular/Heart Jugular venas non seeable Symmetrical pulsing on peripheral pulsations Capillary refill trial: & lt ; 4secs Breast Symmetrical Abdomens Skin uniform in colour Symmetrical motions caused by respiration Audible intestine sounds No tenderness Extremities Uniform in colour, symmetric Symmetrical pulsing of peripheral pulsations Capillary refill: & lt ; 4 secs Genitalias REFUSED Rectum and Anus REFUSEDPersonal/Social HistoryHabits: He likes to read and travel to the promenade Frailties: Drinks on occasion Life style: Active Client ‘s usual twenty-four hours like: After acquiring off from work, he finds clip to rest and read a book. Rank in the household: 2nd kid Travel: Went to Bacolod for 10 yearss Educational Attainment: College Graduate III. Environmental History The client lives in a private subdivision in Malabon, Manila with his sister and her household. He describes their small town as quiet and peaceable. Few autos pass by their street. They segregate their refuse and maintain their milieus clean.IV. PathophysiologyA. Theoretical Based Dengue Hemorrhagic Fever Predisposing Factor: – Age – Sexual activity -Immunodeficiency Precipitating Factor – Aedes aegypti mosquito Bite of a virus transporting mosquito Mosquito injects fluid into victim ‘s tegument Virus enters in the host ‘s blood watercourse Infects cells and replicate in sufficient sum Platelet will supply a shield for the virus from exposure and binding to neutralize preexistent antibody. Novices immune system response Stimulates release of cytokines Activation of memory T-cell response during re-exposure Macrophages or monocytes engulfed the virus holding a thrombocyte ( phagocytosis ) Virus-antibody composite Cytokines destroy cell membrane and cell wall Cytolysis Complement activation system Fluid switching ICF to ECF Coagulopathy ( PT, PTT ) Thrombocytopenia Vasculopathy ( plasma escape ) Vascular endothelian cell activation High Fever, organic structure failing, concern, sickness & A ; purging, abdominal hurting, petechial roseola in countries of the organic structure, bloody stool ( sometimes ) B. Client Based Dengue Hemorrhagic Fever Non-modifiable Factors: – Age: 36 y/o – Sexual activity: Male Modifiable Factors: -Immunodeficiency Poor Environmental Sanitation Aedis Aegypti Mosquito bites Creates multiple lesions in the blood watercourse Increase phagocytic activity Virus multiply in blood stream After 2-3 yearss incubation, febrility appears Paracetamol given Excessive ingestion of thrombocytes Scheduled BT For replacing Hematologic studies reveal that patient has low home base count Dengue Titer Test Done( + )Which states that patient has grade 1 DHF with marks and symptoms manifestedV. Laboratory ResultsUrinalysis ( 7/14/10 )ExaminationConsequenceInterpretationColor Yellow Yellow in colour may bespeak concentration in urine Transparency Slightly Cloudy–pH 6.0 pH and specific gravitation is within normal bounds Specific Gravity 1.010 Glucose Negative–Protein++Transeunt lift due to infection Blood Negative–Ketone++More fats are being used for energy alternatively of glucose Nitrite Negative–Bilirubin Negative–Blood ( 7/14/10 )ExaminationNormal ValueConsequenceInterpretationHemoglobin 140-175 g/L 141 Normal Hematrocrit 0.42-0.50 0.44 Normal RBC Count 4.50-5.90 Ten 10^12/L 4.92 Normal WBC Count 4.00-1.050 Ten 10^9/L 4.40 Normal Basophil 0.00-0.01––Eisonophil 0.01-0.04––Pang 0.02-0.05 0.01 Normal Neutrophil 0.36-0.66 0.69 Normal Lymphocyte 0.24-0.44 0.16 The patient is compromised because of immunodeficiency. Monocyte 0.02-0.12 0.14 Normal Platelet Count 150.00-450.00X10^9/L 125 The patient ‘s thrombocyte count is below normal scope which means that there no equal coagulating map.Blood ( 7/19/10 )ExaminationNormal ValueConsequenceInterpretationHemoglobin 140-175 g/L 140 Normal Hematrocrit 0.42-0.50 0.43 Normal RBC Count 4.50-5.90 Ten 10^12/L 4.84 Normal WBC Count 4.00-1.050 Ten 10^9/L 7.37 Normal Basophil 0.00-0.01––Eisonophil 0.01-0.04 0.04 Normal Pang 0.02 0.02-0.05 Normal Neutrophil 0.36-0.66 0.53 Normal Lymphocyte 0.24-0.44 0.30 Normal Monocyte 0.02-0.12 0.11 Normal Platelet Count 150.00-450.00X10^9/L 215 NormalPotassium ( 7/17/10 )ExaminationNormal ValueConsequenceInterpretationPotassium 3.50-5.50mg/dL 3.7 NormalCurdling and Hemostasis ( 7/18/10 )ExaminationNormal ValueConsequenceInterpretationActivated Partial Thromboplastin- Patient 22.60-35.00 secs 32.6 Normal Activated Partial Thromboplastin- Control 22.60-35.00 secs 30.2 NormalUltrasound Result ( 7/17/10 )ExaminationConsequenceDoppler Scrotal/Testes The testicles are normal in size, echopatterns and constellation with no focal lesions noted. The right steps about 4.4 tens 2.6 s2.1 centimeter ( LWH ) . While the left steps about 4.0 tens 2.8 ten 2.1 centimeter ( LWH ) . No extratesticular mass lesion is noted. The epididumes are non unusual. Free fluid aggregation is seen within the left scrotal pouch. Impression: Left Hydrocoele. Normal Testiss and epididymes No grounds of varicocoeleVIII. List of Priority Problem1. Hyperthermia related to desiccation secondary to DHF phase 1 2. Deficient Fluid volume related to active fluid volume secondary bleeding 3. Activity Intolerance related to generalise failing secondary to DHF phase 1IX. Ongoing Appraisal7/14/10 – On DAT ( Diet as Tolerated ) with NDCF ( No Dark Colored Foods ) – Proctor VS q4, rigorous I & A ; O – Dx process: CBC, Platelet count, Potassium, Urinalysis – Dengue Titers – Master of educations: Aeknil 1 A IV q4 Nafarin 1 check TID Azithromycin 500 milligram OD 7/15/10 – Addition unwritten fluid intake – Dx process: Blood Typing ( Result: Bachelor of arts ) 7/16/10 – Facilitate station BT as ordered – Give antamin 1 amp 30 min prior to BT 7/17/10 – Warm compress over scrotal are TID 7/18/10 – WOF marks of shed blooding 7/19/10 – Cold compress 10 min BOD and displacement to warm compress 10 Command – Scrotal Support 7/20/10 – May travel placeTen. Discharge PlanMedicine: Celebrex 200 milligram 1 check 2x a twenty-four hours PRN for hurting Exercise: Avoid strenuous exercisings Treatment: Patient must take medicines for hurting as needed. Bed remainder. Increase unwritten fluid intake Health Education: Promote patient to hold a healthy life style. Practice good hygiene. Diet: Diet as tolerated. Eat balanced repasts daily, nutrients high in fibre.