Ray Bradbury Essay Example

Ray Bradbury Essay Having stolen a book, Montag smuggles it under his pillow instead of hiding it behind the vent. He is truly fascinated by the mystery of literature, he wonders what it is that makes him want to have them with him, and especially what makes books so great that the old woman decided to kill herself for them. Next morning Guy feels ill from thinking that he actually killed a woman for having books in her home. 14 He also feels terrified of showing up to work after having stolen the book, so he calls in sick for work. Inspired by Clarisse, Guy Montag starts thinking about his life, how he is unable to recall his life in any detail at all. He does not remember when he met Mildred for the first time, got married with her and why they do not have any children together. When he asks her she is equally blank about their lives together. Realising that his life has simply been a robot presence, we see the second turning point of Montags development, changing from the condition of uncertainty to the condition of minor rebellious thoughts and acts15. In his sick bed he also finds out that his young friend Clarisse has disappeared, possibly run over by a car. He has lost the only person he could talk to about anything else than what was on the parlour. We will write a custom essay sample on Ray Bradbury specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Ray Bradbury specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Ray Bradbury specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Having called in sick for work, Captain Beatty visits Guy on his sick bed. Captain Beatty knows what firemen go through when they experience death the way Montag did, knowing that he is wondering why books have been censored and why firemen are burning them, so Beatty carefully explains how it all started in the first place. He describes how minorities were offended by what was written in literature, how the authors generalised all the small groups. Authors, full of evil thoughts, lock up your typewriters. They did. Books, so the damned snobbish critics said, were dishwater. No wonder books stopped selling, the critics said. 16 This meant the people only wanted their comic books and erotic magazines, so actually it was not the government that excluded books, but the people. There was no dictum, no declaration, no censorship, to start with, no! 17 The firemen were just there to please the peoples wish, there were no orders from the state. This passage can very easily confuse the reader in which opinion Captain Beatty has towards the development of the book censorship. It seems like he was an intellectual person, as he speaks foul about comic magazines and of the critics who ruined the reputation of books. But he also explains that the word intellectual became the swear word it deserved to be. Books were considered a loaded gun in the house next door; people were afraid of intellectual men and women, so the firemen were simply given the role of burning the books; Getting rid of the dangerous gun. 18 He might have known that he too was a dangerous gun in the peoples eyes, so he joined the revolution. Not only knowing what Montag feels, Beatty knows about his illegal affairs, so he tells Montag that there is a policy allowing firemen with stolen books to have 24 hours to deliver them for destruction. Montag accepts this possibility to read the books, much to Mildreds disgust. Montag decides to come clean when Beatty leaves and shows Mildred his stash of books behind the vent. This is not only coming clean to the public, but also showing himself what he actually has been doing all this time. Overwhelmed by the task of reading, he remembers having met an English professor a while back by the name Faber. Montag asks Faber the true meaning of books, and is told that the value of books lies in the detailed awareness of life that they contain. He is also made aware that you need the freedom to act upon the ideas from the books. Montag is truly inspired by Faber, and is truthfully committed to getting rid of the censorship of books. Faber and Montags plan is to reproduce books, so that Montag can plant them in the other firemens houses, harming the reputation of the profession. Montag is also given a two-way ear piece so he and the professor can communicate at all time. 19 The feeling of rebellion gets to his head as he gets home, only to be greeted by his wife and her two friends talking uncaringly about the war that is to be declared at any time. Montag is aggravated by the little feeling in their conversation, and decides to read Dover Beach for them by Matthew Arnolds, containing the message; Challenges to the validity of long-standing theological and moral precepts have shaken the faith of people in God and religion20. Faber tries desperately to stop Montags act of revolt towards the women through the ear piece, but does not succeed. The two women leave in protest to file a complaint against Montag. Montag meets the hand-back deadline that was set by Beatty, but only hands in one of the books. Beatty explains to Montag what process he has been through the days he has had the books by quoting a passage in a book. A little learning is a dangerous thing. Drink deep, or taste not the Pierian Spring; there shallow draughts intoxicate the brain, and drinking largely sobers us again. 21 Beattys words mean nothing to Montag as he does not understand them, but Beatty then explains the sentence to Montag, saying that he was a drunkard, only satisfied when inspired by rebellious thoughts, he knows that from former experience in his own life. Montag thinks he is saved by the bell as the alarm rings as soon Beatty finishes his sentence. When the crew arrives at the reported house, Montag immediately recognises it as his own home, and he quickly spots Mildred stepping into a taxi. He has been betrayed by his own wife. Beatty reveals to Montag that he knew all along what Montag had been doing, but he was prepared to give him a chance to put it all behind him, a chance he also had been given in the past. The only way to do this is to burn down the house and go to prison for some time. 22 Acting in sudden feeling of pure hatred towards Beatty and fear of having to lose literature, he burns the captain instead of the house and runs away. Montag escapes over to Faber, where he is recommended to flee out of town using the river to lose the mechanical dog. He is to meet a group of intellectual book lovers, known as The Book People. Montag manages to do so, escaping mechanical hounds and air born news teams trying to keep up with his getaway. Montag is warmly welcomed into the group who specialise in memorizing great literature. Their goal is to help the people re-establish their desire to read books and live their lives to the fullest. Their only opportunity for this is if everything is destroyed in the war coming up. All members have a piece of literature they have to memorize, and Montag has to remember The Book of Ecclesiastes, which is a part of the Hebrew bible. As he is given his task, jets appear in the sky, dropping bombs into the town Montag had escaped from a few days earlier. This is The Book Peoples opportunity to re-enter civilisation, now they can do what they have risked their lives for. The events of Fahrenheit 451 have led us through Guy Montags life and development. Although he is the main character of the novel, he is by no means an ideal hero. The reader can identify and accept his mission, but not entirely approve of his awkward and somewhat foolish decisions on the way. His faith towards his profession and lifestyle already declines in the opening chapter due to having been faced with the complexity and mystery of books for many years. The reader is introduced to Montag as a confused and misguided character. This is confirmed later to the reader, when observing his way of rebellion against the society, as he either performs efficiently by being lucid, or otherwise he is inclined to be clumsy, e. g. when putting the book under his pillow. His humanity range is also very wide, from the compassionate and sensitive conversations with Clarisse, to the monstrous and irresponsible murder of Captain Beatty. This clearly shows that he is bewildered and unwise all way through the story, as if he does not fully support his own plan of overthrowing the firemen and state censorship. At times Montags mind is disorientated by the actions of his body, e. g. when his hands steal books. He is also not capable of taking decisions independently, always dependent of Beatty, Mildred or Fabers ideas and plans, which makes him easily manipulated. It definitely shows the reader that he does not have control over his own mind and actions. Captain Beatty takes full advantage of these many weaknesses, and confuses and manipulates Montag with difficult quotes from advanced books. It is clear to the reader that Beatty is very loyal to his profession and lifestyle of immediate pleasure, but he is suspiciously wise on books, proving that he has an intellectual background. This tends to confuse the reader, thinking that he might not be the actual villain; that he could possibly be on the same side as Montag and Faber. Faber has the same way of confusing the readers trust in him. He is a supporter of books, but he tends to order Montag around, not letting him think for himself, possibly using him as a soldier for his own rebel uprising, making the reader suspicious of which hidden plans Faber might have. The two other major characters, Mildred and Clarisse, are total opposites of Beatty and Mildred. Mildred is pictured to the readers as an empty shell, cold and very unreadable. Although she is the wife of the main character, the readers relationship to her is very weak and unknowing, as she is very distant to everything around her. Still it is clear that she is struggling from an internal fight because of her suicide attempt. She is opposite to the two men because she tries to stay out of Montags actions and thoughts, not wanting to be a part of his life. Clarisse shares the same point of not trying to manipulate Montag, but is extremely interested in Montags feelings and thoughts. Clarisse is the totally opposite from everybody else, not caring about anything, only focusing in enjoying every natural detail happening around her. Clarisses death strikes Montag hard, having been greatly inspired by her. These major characters have all been sitting on Montags shoulder like small angels and demons, each pulling at him from each their sides, each wanting Montag to do what they want him to do. The author Ray Bradbury intelligently includes himself into the novel, by using his characters as his voice. Captain Beatty is often used to describe the background of the society, Clarisse is his way of showing how he also notices and questions small natural mysteries in his daily life, but most importantly he reflects himself in the main character. Guy Montag is Bradburys image of how he too would be the imperfect hero, being misguided and clumsy, but would fight frantically to preserve literature. 23 The reason he has mirrored himself with the rebel in this story is because of his message being sent out in the novel. Readers have always presumed that the main theme of the book was state censorship, but Bradbury burst the bubble on that interpretation in a LA News interview in 2007. He had observed shortly after WWII that the peoples growing interest in radio and television was spreading a long shadow over literature and the interest in books, The culprit in Fahrenheit 451 is not the state it is the people. 24. He was predicting that mass media was going to be the end of literature. He was not just being pessimistic and old fashioned, when he foresaw that people would only be semi-informed by their quick-reading and quick-radio broadcasts giving the LA News readers the example; Television gives you the dates of Napoleon, but not who he was he calls TVs summarizing factoids, being misinforming and imprecise. His true message to the readers is to watch out for the temptation of mass media, reading books is the only reliable form of information and knowledge25. Bradburys message is especially apparent in the two texts Montag reads, Dover Beach and The Book of Ecclesiastes. Dover Beach having the message Challenges to the validity of long-standing theological and moral precepts have shaken the faith of people in God and religion proving that human development and modernisation tends to lead the populace away from tradition and belief. These two texts can be compared in this way: Dover Beach = theologyreligion and Fahrenheit 451 = Literature mass media. The Book of Ecclesiastes proclaims that all action of man to be inherently meaningless/empty as the lives of both wise and foolish men end in death. The main speaker, the son of David, claims wisdom as a means for a well-lived earthly life. This enforces Bradburys message, proving that temporary happiness is insignificant, only knowledge is important. 26 Why live your life in the shade of unawareness, when generations of intellectuals share their precious awareness with you? 27 Ray Bradbury.

The eNotes Blog History Belongs to theRevisionists A Cleaned-Up Huck Finn IsComing

History Belongs to theRevisionists A Cleaned-Up Huck Finn IsComing The pitifulest  thing out is a mob; thats what an army isa mob; they dont fight with courage thats born in them, but with courage thats borrowed from their mass, and from their officers. But a mob without any MAN at the head of it is BENEATH pitifulness.   ~ The Adventures of Huckleberry Finn,  Chapter 22 by Mark Twain There are all sorts of mobs, but some are harder to identify. One of the toughest to combat, perhaps, is the  politically correct. Today, Publishers Weekly announced that there will be a new N-Word free edition of Mark Twains classic available so that no one will have to be offended. But is that at all desirable? If we erase the lessons of history, how can we avoid repeating them? Its difficult enough to avoid missteps when we know what they are. Erasing our racist, shameful, past will not alter the fact that it happened. Perhaps some will argue that it is better to have the cleaned-up version rather than no Huck Finn at all. After all, the inclusion of the novel on high school, and even college, reading requirements has been in steady decline for many years and has been on the top of the list of banned books for quite some time as well, along with other uncomfortable works of literature like Ray Bradburys Fahrenheit 451, J. D. Salingers Catcher in the Rye, and Harper Lees To Kill a Mockingbird. Should all of these classics be sanitized as well?   Whats next?   Frederick Douglass: My Life as a Servant (It Wasnt That Bad) ?

Public Policy & Globalization and Outsourcing Essay

Public Policy & Globalization and Outsourcing - Essay Example The various steps are problem identification, policy formulation, policy adoption, policy implementation and policy evaluation (This Nation, n.d.). The problems that lead to the formulation of public policy are generally identified by spotting the causes and the factors contributing to the problem. This is the first step involved in the process of formulating public policy. This stage looks after various aspects of the problem. It identifies the degree of awareness among the commoners about the problem. This step also considers the various alternatives to reach to the solution of the problem in question (RCIP, 2002) A public policy may be adopted by certain group of people. These groups are the government players such as the courts, the executive branch and the legislative branch. There are various private players also like the citizens of the country and the interest groups (Pearson Education, 2010). The public policies are adopted for the welfare purpose of the citizens. There are various levels where the public policies enact differently. For example, at federal level such policies are levied to control the business units and the industries in a country. Moreover, for the protection of citizens staying in the country and abroad both the public policies are at times enacted distinctly. It also provides an aid to the central government as well as the state governments and the poor people by raising funds through various programs. These kinds of activities are covered by the public policies. They mainly aim at realizing the social goals (Pearson Education, 2010). The American President Barack Obama takes on bringing a change in the situation of benefitting significantly from the outsourcing Indian IT companies, has brought up a new policy. The policy developed has brought into existence a new tax code. According to this new tax code the companies that create employments in

Via Turnitin, Essay Example | Topics and Well Written Essays - 1000 words

Via Turnitin, - Essay Example Barrister A barrister is a member of the legal profession that has been ‘called to the Bar’ ergo the name. They argue their cases before the court and also serve as legal counsel or advisers to their clients with the help of their solicitors. Up until 1990, barristers have the exclusive right to argue their cases in court, but now, this law has been revoked and solicitors, in some cases, are allowed to perform this role as well. To be eligible for the title of barrister-at-law, students must pass the qualifications and standards set by the Council of Legal Education and is only restricted to the Inns of Court. By paying a fee, students are summoned to the Bar. For a year, they have to become apprentices in the chambers of practising barrister. Before presenting a case in court, barristers are usually aided and instructed by solicitors regarding their cases. Since 1989, and from the beginning of 1990, many changes to the legal proceedings have been introduces to cut back on litigation costs—one of which is that barristers could present their cases in court without their instructing solicitors in some cases. The law also states that barristers could not be sued by their clients for negligence in presenting their case in court and likewise, cannot sue their client for unpaid fees (â€Å"barrister†). ... Solicitors also â€Å"have a monopoly of certain legal business and are subject to court regulation.† The qualifications, trainings, and standards to become a solicitor is set by the Law Society which includes, but is not limited to an apprenticeship under a practicing solicitor for at least several years and must be a graduate of law school (â€Å"solicitor†). Gray Areas Despite the very distinct roles and functions that was originally intended to be performed by a solicitor and a barrister, changes in the judicature brought about by the changing demands of time have created some gray areas between the functions and roles of the two legal professions wherein they tend to meet in some areas. For instance, originally there is a clear cut distinction that solicitors are to handle legal matters outside the court while barristers would be in charge of arguing cases before the court. The roles are also very separate: the solicitor is the one who gives legal advises to the cl ient and prepares the case for court. After all the legal preparations are handled by the solicitor, the barrister then takes over and brings the case before a judge. Through this process, it is only the solicitor who gets to transact directly with the client. â€Å"It is the solicitor who refers cases to a barrister if there is a need for the case to go to court.† In a nutshell, it is under the prudence of the solicitor if the client would require the services of a barrister (â€Å"Difference between Barrister and Solicitor†). If and when a barrister is brought in the case, the client does not transact with him/ her directly. Rather, the client transacts with the

Change Management and Leadership Research Paper

Change Management and Leadership - Research Paper Example Secondly, the leadership should have the power to motivate and empower the followers so that they become ready to adapt to changes without resistance. Also, they should be encouraged to accept the shared vision and get ready to accept challenging goals. Another important point is that the leadership should be able to enforce enough discipline to execute the plans and policies. Most of the time, organizations come up with impressive strategic plans but they lack the change management skills to properly operate the strategies to reach the expected goals. As Kaminski insists, whenever there is a plan, there should be properly developed performance measures and targets. Thirdly, the leadership should be fully prepared to change at any time as an organization might need to change as a result of environmental changes. So, only a fully prepared leadership can ensure that the organization has an environment that proactively observes and responds to changes in both external and internal facto rs. Finally, the leadership should understand change as a long and continuous process which has to be implemented over a long period of time. Leadership as the Visionary The first role of leadership is that of a visionary. ... Leadership as the Inspirer Leadership should have the ability to inspire and motivate the people under it. It is often achieved by identifying specific benefits to the people and minimizing potential losses. Also, there is participative decision making and open communication which will make the followers feel that there is a compelling reason for change. Leadership as Supporter In fact, leadership acts as supporter through providing enough resources, enough time, recognition and rewards. Also, from time to time, leadership will publicise vivid stories about the success of the change. Moreover, the leadership will provide such a picture that the success of all people is dependent on the success of the change. Leadership as Supporter Leadership also acts as supporter during changes. It actively listens to the problems and criticisms of people. Also, it offers as much empathy and care as possible to the people affected by the change. Leadership and Change Strategies There was a seminar named ‘Transforming Organisations’ organised by the European Foundation for the Improvement of Living and Working Conditions in Madrid on 23 and 24 September 2003. In the seminar, all the participants agreed to the fact that change management is the most important role of leadership. In fact, most of the changes introduced in organizations are aimed at improving either performance or productivity. The various strategies the companies adopt to ensure transformation range from growth, innovation and skills development, downsizing, layoff, replacements, altering assets and resources, and so on and on (cited in Dhondt, Kraan and Sloten). June Kaminski

Unitary PLC, Rack-Mounted PLC and Modular PLC

Unitary PLC, Rack-Mounted PLC and Modular PLC Overview Before PLCs were created many industries such as the automobile industry used hundreds of thousands of relays to control their processes. This was very time consuming and expensive, sometimes resulting in a two year change around between different products because electricians would have had to individually rewire every relay to change a production system for a different line of cars etc. Programmable Logic Controllers or PLCs were first designed in 1968 when General Motors decided that a replacement for this type of process was needed. PLCs are designed for multiple inputs and outputs. A PLC is essentially a small computer which is used for mainly industrial purposes but also has other uses. Industrial uses could be: Packaging lines Robots Hydraulic machines Pneumatic machines Other uses could be; Traffic lights Car parking barriers Signalling systems PLC Units There are three types of programmable logic controllers (PLCs). They are Unitary, Modular and Rack mounted. All three types have different features both good and bad which make each type suitable for many different applications. Unitary PLC Design and characteristics A Unitary PLC contains all the features of a basic system in one compact unit, the features include; A power supply. The main module which contains a central processing unit (CPU). The input module. The output module. Unitary PLCs are fitted directly to the component or machine that they are controlling. The advantages of a unitary PLC: They are small and compact. They hold all the basic components in one unit. They allow portable and easy access. They are usually the cheapest type of PLC. The disadvantages of a unitary PLC: They cannot be expanded. If any feature fails then the whole unit has to be replaced. They are very simple and basic. Applications Unitary PLCs can be used for any application that does not require a lot of inputs or outputs. For example a car park barrier, this would not use many inputs/ outputs and would only require a simple program. Modular PLC Design and Characteristics Modular PLCs are a system of modules that can be slotted together to build up a system. The basic modules contain; A power supply. The main module which contains a central processing unit (CPU). The input module. The output module. Other types of module can be attached as well as extra input and output modules to increase the capacity or to cope with changes in hardware system. The advantages of a modular PLC: The amount of input and output terminals can be expanded to cope with any changes to the hardware system. If any feature fails then only that part has to be changed saving on cost. The disadvantages of a modular PLC: They are expensive compared to unitary PLCs. Applications Modular PLCs are useful for applications where there would be a lot of inputs and outputs because more input/output modules can be added if needed. This type of PLC is widely used in the manufacturing industry to control process lines. Rack-Mounted PLC Design and Characteristics The design and characteristics of a rack mounted system are very similar to a modular system however these modules are on standard cards which then slot together into a rack inside a control cabinet. These modules communicate via the rack. The advantages of a rack-mounted PLC: They are easily modified or expanded. They have more I/O points than any other type of PLC. If any feature fails then only that part has to be changed saving on cost. The disadvantages of a rack-mounted PLC: They are usually the most expensive of the three PLCs Applications Like the modular PLC this type of system is widely used in the manufacturing industry. This is mainly because of the amount of input/output points that the system can contain but also because it has the ability to communicate with other networks. Internal Workings of a PLC CPU The CPU- Central Processing Unit acts as the brain of the PLC. It contains a memory unit into which the PLC program is written into. It is basically used to process the information it receives from inputs and carries out instructions to the outputs according to the logic programmed into it. This process is called the scan cycle and it occurs every 5ms. The scan cycle is shown below. (Ref 2) When a program is written on a programming device such as a laptop it is uploaded to the CPU, once it has been uploaded it is then written into the CPUs memory. The programming device can then be disconnected without losing any data from the PLC because the program is now saved into the memory of the CPU. Only the unitary PLC has a CPU built into it, on the modular and rack-mounted PLCs the CPU comes as a separate module. On modular PLCs the CPU would be the first module whereas on rack-mounted PLCs the CPU is governed by the amount of inputs and outputs that are being used. Input and Output Devices In PLCs data is collected from inputs which are connected to the input modules and sent to the CPU, this data is then executed within the program logic and then sent to the output devices via the output modules to perform a specific task. The inputs and outputs are assigned a reference point in the PLC so that they are easily recognisable when programming. An input device is any peripheral piece of hardware that is used to send data information and control signals to any information processing system, in this case the PLC. In terms of PLCs there are two different types of inputs, analogue and digital. An example of an analogue input would be a sensor or transmitter and an example of a digital input would be a switch, push button etc. Inductive proximity sensor An inductive proximity sensor will detect metal surfaces or devices without coming into contact with them. The sensor face is made up of windings from the oscillator. These form an alternating magnetic field around the sensor face called an inductance loop. The inductance of a loop will change if a metal is placed inside it because metals are much more effective inductors than other types of material. Once the inductance loop is altered the change is detected by sensing circuitry which then signals to another device such as a PLC. Capacitive sensor A capacitive sensor will detect any surface or device without coming into contact with it. A capacitive sensor uses an alternating voltage which in turn causes the positions of the charges to continually reverse. This then creates an alternating electric current which is detected by the sensor face. The sensor face is made up of capacitors from the oscillator. The amount of current flow is determined by the capacitance, and the capacitance is determined by the area and proximity of the conductive objects. Therefore the larger and closer the object then the greater the current will be and vice versa. Photo Electric Sensor A photoelectric sensor uses light to operate. When a preset level of light is picked up by the sensor the sensor switches. This type of sensor is used to detect moving objects, for example bottles on a conveyor are detected due to the bottles breaking the line of light. Once the line has been broken the switch signal is fed into the electrical control circuit which provides a corrective action. There are three types of photo electric sensor. These are Reflective, retro-reflective and separate type. Optical Reflective Sensor The light is reflected off the surface of the bottle back to the receiver. Optical Retro-reflective Sensor The light is transmitted and reflects off a reflective surface back to the receiver. Optical Separate Sensor Outputs An output device is basically any device that is controlled via the output module of a PLC. In terms of PLCs there are two different types of outputs, analogue and digital. Analogue devices are devices that the output can be varied. Digital outputs are used to control two state devices, this means that they are either on or off. An example of an analogue output would be motor speed; valve position etc and an example of a digital output would be a relay, solenoid valve etc. Indicators Indicator light The simplest of the PLC outputs, the indicator light simply shows that a certain function has worked correctly, for example if a machine was in run mode then a green indicator light could also be activated to notify operators etc that the machine is running. Indicator buzzer Acts in the same principle as the light but uses sound; it is more effective at alerting someone to a problem especially if that person does not have a line of sight of the machine. For example if there was an error that has caused a machine to stop then the buzzer would sound. Solenoid valve A solenoid valve can be operated electrically and pneumatically. In the case of a normally open 3/2 valve it uses one of these to switch it from off to on. Solenoids are named after the amount of states or ports they have and also what function they do. For example a 3/2 spring return solenoid has 3 ports, 2 states and once it has been deactivated it returns back to its natural position via a spring. The 3/2 valve below is shown in two stages. Stage 1 is where the valve is in its natural state where air is flowing from P (the air supply) to b (the exhaust). Whereas in stage 2 the valve is activated allowing air to flow from P to a where the air is sent to another device for example a cylinder. Stage 1 (Ref 1) Stage 2 (Ref 2) Signalling Signalling refers to the use of signals for controlling communications. Signals can be either digital or analogue. With digital signals the signal is logic therefore it is either a 1 (True) or a 0 (False). With analogue signals the entity is continuous where the signal is constantly varying based on real time. For example the amount of light a sensor receives is an analogue signal because it can be any value within the range that the sensor can pick up. (Ref 1) In some systems both digital and analogue signalling is needed. For example a house phone shares the same network connection as a pc. In this case a device called a modem is used to convert the signal between the two. (Ref 2)http://geekrich.com/wp-content/uploads/2011/09/home-network-diagram.gif Networks A PLC must communicate with other devices in order to operate. These devices are connected to the PLC via a network. There are many different types of network such as: Bus Network A bus network is a long cable acting as a backbone which links devices together, the backbone has nodes connected to it via a single line. The signal travels in both directions until they are terminated at either end. The amount of nodes that can be attached however is limited to the strength of the signal. http://www.olson-technology.com/mr_fiber/images/bus_network.gif (Ref 1) LAN- Local Area Network A LAN network is used to connect different hosts in a small area such as an office or a small building. Data is sent in the form of a data packet which includes the address of both the sender and the destination. http://berbagisolusi.files.wordpress.com/2011/12/lanwan11.gif (Ref 1) Programming There are three main types of programming that are used in PLCs. These are; Ladder logic Structured text Functional block Ladder logic Ladder logic is one of the most common styles of PLC programming and it is used in most manufacturing companies. It is called ladder logic simply because the style resembles a ladder as shown below where the two vertical rails are connected by a rung. Rung Rails (Ref 1) It is popular because of its similarity to relay logic which in turn allows most program designers to easily grasp the concept. Ladder logic is written using logic symbols which are shown below and is read from left to right. Ladder logic symbols (Ref 1) Normally open Normally closed Normally open immediate Normally closed immediate NOT Positive transition Negative transition Output Output immediate Set Set immediate Reset Reset immediate Set-dominate bistable Reset-dominate bistable No operation Example of Ladder logic Below is a simple circuit designed to mimic a drilling process where 3 cylinders are used to drill a part. Cylinder a when extended places a part below cylinder b, whilst cylinder c is already extended holding the part securely in place and also preventing the part from falling through the gap below cylinder b. Cylinder b then comes down, drills the part, goes back up and cylinder c retracts allowing the part to fall through the gap. (Ref 1) Cylinder B Cylinder A Cylinder C The ladder diagram for this circuit is shown below. (Ref 1) As can be seen from above the system uses sensors to show whether each cylinder is extended or retracted. This information is then used to activate each cylinder. For example in the first part of the programme which has been highlighted; Relay R1 is activated when the start button is pressed given that the stop button is in the normally closed position. Sensor 5 (S5) is off which is showing that cylinder 3 is extended. When this is off it allows Relay 1 to stay permanently on because one of the contacts from R1 can then complete the circuit and create a latch. R1 is then used to activate solenoid 1(Sol1) to extend cylinder 1 provided that S2 and R4 are off. Structured text Structured text is a text based language that uses statements to define what needs to be executed. Structured text uses statements such as: IF†¦THEN†¦ CASE†¦OF†¦ FOR†¦DO†¦ WHILE†¦DO†¦ REPEAT†¦UNTIL†¦ People who are trained in computer language find structured text easier to understand than ladder logic because they are of a similar format.

The Importance of Work-Life Initiatives Essay -- Human Resource Manage

Work causes stress. Both men and women are working, raising a family, and going to school. Previously, women in the work force would take demotions or walk away from careers when having children. Today, families rely on a dual income. With both parents working full time, while raising children, the relationship between work and home responsibilities are unbalanced. This unbalance creates stress for both the employee and the employer. Work-life balance is the need to provide a schedule that will combine work, family relationships, and leisure time into a satisfying life. Flexible work arrangements balance work and home responsibilities; which helps employees deal with stress, motivates them, and empowers. Organizations need to assess workplace culture and provide mechanisms to support work-life balance that are mutually beneficial to both the organization and the employee. Individuals each have unique responsibilities that define the meaning of work-life balance. Employees in the workforce that fulfill family and work commitments have achieved a sense of work-life balance ("The business imperative," 2009). The distinction between work and personal life used to be clear. Today, personal commitments suffer for lack of time and energy. Unfortunately, the demands of work outweigh the demands at home, because without work the home does not exist. The unbalanced work-life creates negative and disengaged employees. It costs the U.S. economy between $250 and $300 billion every year in lost productivity alone (Clifton & Rath, 2009). Organizations now realize their success directly relates to the moral of their employees. Organizations that demand complete loyalty and extensive overtime fi... ...ight%20q2%202009.pdf McMahon, C., & Pocock, B. Australian Government, EOWA. (2011). Doing things differently: Case studies of work-life innovation in six Australian workplaces. Retrieved from http://www.eowa.gov.au/Information_Centres/Resource_Centre/EOWA_Publications/University_of_SA_Case_Study/UniSA_Case%20Studies%20report_April2011.pdf Nixon, J. (n.d.). Work-life balance. In M. Simmering (Ed.), Encyclopedia of Business (2nd ed. pp. Tr-Z). Retrieved from http://www.referenceforbusiness.com/management/Tr-Z/Work-Life-Balance.html SHRM. (2011). Shrm research spotlight: Flexible work arrangements. Retrieved from http://www.shrm.org/research/surveyfindings/documents/11-workflexflier_final_rev.pdf Yasbek, P. (2004), The business case for firm-level work-life balance policies: a review of the literature. Retrieved from http://w.iaa.govt.nz/PDFs/FirmLevelWLB.pdf The Importance of Work-Life Initiatives Essay -- Human Resource Manage Work causes stress. Both men and women are working, raising a family, and going to school. Previously, women in the work force would take demotions or walk away from careers when having children. Today, families rely on a dual income. With both parents working full time, while raising children, the relationship between work and home responsibilities are unbalanced. This unbalance creates stress for both the employee and the employer. Work-life balance is the need to provide a schedule that will combine work, family relationships, and leisure time into a satisfying life. Flexible work arrangements balance work and home responsibilities; which helps employees deal with stress, motivates them, and empowers. Organizations need to assess workplace culture and provide mechanisms to support work-life balance that are mutually beneficial to both the organization and the employee. Individuals each have unique responsibilities that define the meaning of work-life balance. Employees in the workforce that fulfill family and work commitments have achieved a sense of work-life balance ("The business imperative," 2009). The distinction between work and personal life used to be clear. Today, personal commitments suffer for lack of time and energy. Unfortunately, the demands of work outweigh the demands at home, because without work the home does not exist. The unbalanced work-life creates negative and disengaged employees. It costs the U.S. economy between $250 and $300 billion every year in lost productivity alone (Clifton & Rath, 2009). Organizations now realize their success directly relates to the moral of their employees. Organizations that demand complete loyalty and extensive overtime fi... ...ight%20q2%202009.pdf McMahon, C., & Pocock, B. Australian Government, EOWA. (2011). Doing things differently: Case studies of work-life innovation in six Australian workplaces. Retrieved from http://www.eowa.gov.au/Information_Centres/Resource_Centre/EOWA_Publications/University_of_SA_Case_Study/UniSA_Case%20Studies%20report_April2011.pdf Nixon, J. (n.d.). Work-life balance. In M. Simmering (Ed.), Encyclopedia of Business (2nd ed. pp. Tr-Z). Retrieved from http://www.referenceforbusiness.com/management/Tr-Z/Work-Life-Balance.html SHRM. (2011). Shrm research spotlight: Flexible work arrangements. Retrieved from http://www.shrm.org/research/surveyfindings/documents/11-workflexflier_final_rev.pdf Yasbek, P. (2004), The business case for firm-level work-life balance policies: a review of the literature. Retrieved from http://w.iaa.govt.nz/PDFs/FirmLevelWLB.pdf

Measurement For Skin Absorption Health And Social Care Essay

Risk appraisal after cuticular exposure to chemical merchandises requires transdermal soaking up information in order to correlate the external exposure to systemic toxicity. High quality informations on transdermal soaking up are accomplished from human voluntary surveies. Although the usage of in vivo surveies is strongly demotivated for ethical constrains. The behavior of these surveies is non imaginable for a immense figure of chemicals and other merchandises. As a consequence there was a turning demand for in vitro checks to find transdermal soaking up. The OECD in vitro TG for finding of cuticular soaking up accepts the usage of tegument of many mammalian species, and human tegument. Due to its higher handiness, excised carnal tegument has been used widely for appraisal of transdermal soaking up of chemicals merchandises in homo. The usage of animate being tegument for soaking up measuring is more meaningful when a permeableness coefficient can be used for comparing with human informations. Thus one of the cardinal undertakings is the hunt for a nexus between in vitro carnal tegument soaking up proving and human surveies for anticipation of transdermal soaking up in worlds. Hence such a method can optimise the development of drugs and cut down the figure of human surveies needed. However due to the big figure of different animate being species reported, comparing is complex. Small alterations in methodological analysis used with a specific tegument theoretical account, skin phonograph record temperature, receiving system media, application dosage and diffusion country can hold a serious impact on the cuticular soaking up. Furthermore no formal proof method has been performed.In vitro and in vivo OECD compliant surveiesTransdermal soaking up can be measured utilizing in vivo or in vitro methods with worlds or animate beings. These soaking up trials need to be executed under conditions imitating those expected to happen during the exposures to be investigated for hazard appraisal. The intent of vitro surveies is that they can foretell in vivo soaking up when the appropriate methodological analysis for both methods is used ( WHO, 2006, p.79 ) . During in vivo experiments the microcirculation system ( blood and lymph vass ) may transport substances from the corium into the cardinal compartment ( reabsorption ) . In contrast to in vivo reabsorption of a substance can non be sufficient evaluated in vitro ( SCCS, 2010, p.6 ) .In vivoThe rat is the most recognized species used in in vivo transdermal soaking up measuring ( OECD, 2004b, p.2 ) . The OECD 427 in vivo method defines the finding of the incursion of the trial compound ( or metabolites ) through the tegument into the systemic compartment. One or multiple doses of the trial substance, sooner radioactive-labeled sample, are applied to the clipped tegumen t of the trial animate being for a described period. The expected human exposure defines the applied dosage and clip. The animate beings are later evaluated at periodic intervals for marks of toxicity, and day-to-day piss and fecal matters ( and sometimes expired air ) are sampled for the trial compound. Blood samples are compiled at regular intervals and when the animate being is killed. Distribution of the trial compound may be determined in tissue samples from the application site and the organic structure. The result of the measuring can be expressed as the rate, sum, or per centum of transdermal soaking up. Advantages of the OECD 427 TG are the coevals of kinetic information in a metabolically undamaged system ( OECD, 2004b, P.1 ) .In vitroIn vitro or ex in vivo experiments, have realized a important decrease in usage of trial animate beings. The in vitro trial is developed for the measuring of the permeableness of a trial substance across excised tegument. Distinct types of ho mo or animate being skin readyings can be applied. The excised tegument phonograph record is mounted in a inactive or flow-through ( dynamic ) diffusion chamber and the trial compound that penetrates the tegument is collected in a fluid reservoir. Ex in vivo human- and pig tegument are today the most often applied tegument types ( Sh & A ; auml ; fer et Al, 2008, p.161 ) . As illustrated in fig.1, beside the usage of in vitro informations as a standalone attack, and due to the extended usage of the rat in other toxicity surveies, a combination of three surveies ( in vivo rat/in vitro rat/in vitro human tegument ) increases truth of human cuticular soaking up appraisal ( OECD,2010, p.13.15 ) .2.2.1 Validation of in vitro diffusion cellsIt is normally recognized that most types of diffusion cells provide consistent measurings of skin soaking up rates for a scope of penetrants ( Chilcott et al, 2005, p. 633 ) . In a global survey at different research labs the fluctuation in transdermal soaking up was investigated in in-vitro diffusion cell utilizing a mention silicone gum elastic membrane, there was no differences between inactive and flow-through cells in skin permeableness ( Jakasa, Kezic, 2008, p. 283 ) . In vitro measurings have been applied for many old ages for appraisal of transdermal soaking up, in malice of the absence of official proof surveies on the OECD 428 TG. Furthermore the OECD guidelines for in-vitro checks approved the use of assorted protocols ( Jakasa, Kezic, 2008, p.286 ) .Histological and permeableness differences between human and carnal theoretical accountsHuman tegument consists of three basic beds, that is, the cuticle corium and hypodermis. Above all the skin barrier map is provided by the cuticle. Dermal soaking up quantifies the incursion of compounds through this skin barrier into the tegument. The quality of the outer bed of the cuticle the stratum horny layer controls the velocity of cuticular soaking up. Human cuticle is comprised of 3-5 beds, and no blood capillaries are present. The cuticle of the rat shows a higher denseness of hair follicles associated with greasy secretory organs, this difference in coat denseness obvious consequences in higher permeableness in in vitro tegument soaking up surveies ( Chilcott, 2008, p.13 ) . More in peculiar the histology of the porc ear tegument was compared to clamber of worlds. In general the consequences for stratum horny layer thickness and follicular denseness were similar for both skin theoretical accounts ( Jacobi et al, 2007, p.22 ) . The entire lipid content measured in hog cuticular pieces resembles better to the human as for the rat ( Gray, Yardley, 1975, p.434 ) . From histological position the hog is the most relevant species for foretelling in vitro human soaking up, in comparing to human tegument. On the other manus the rat is the most often used species in systemic toxicity testing, particularly due to the low cost, and handiness of historical informations ( Ross, Dong, Krieger, 2000, p.53 ) .Intra-species correlativity between in vitro and in vivo measuring for skin soaking upThe correlativity between in vivo and in vitro transdermal soaking up ( IVIV ) is illustrated for human and rat. In human fundamentally the permeableness features of excised stratum horny layer are consistent with those from in vivo. A more in depth probe was carried-out utilizing literature informations for skin soaking up following in vitro and in vivo trial protocols. In entire 92 measurings in vitro/in vivo were compiled out of 30 publications chiefly from toxicological- and drug developmental countries. The IVIV correlativity or ratio between in vitro/in vivo soaking up was examined by a mathematic theoretical account, utilizing the entire soaking up as the cardinal parametric quantity for comparing. The mean correlativity IVIV for the complete used information set was 1.6. Nevertheless fluctuation between an single illustration could lift up to ratios of 20 crease. On the other manus less than 3 fold difference was observed in 85 % of the informations ( Lehman, Raney, Franz, 2011, p. 225 ) . Another illustration is given for the rat. For all examined compounds in vitro rat skin soaking up was superior to in vivo consequences. From a regulative point of position this may be of usage for a first tier rating ( van Ravenzwaay, Leibold, 2004, p.421 ) .Inter-species correlativity between in vitro and in vivo measuring for skin soaking upDue to fluctuation in composing and construction of the stratum horny layer, cuticular thickness ( table 2 ) , and denseness of hair follicles in the tegument, there are significant differentiations among the assorted animate beings and compared to human ( Jakasa, Kezic, 2008, p.284 ) . A considerable correlativity between animate being and human tegument soaking up can be studied by measuring of permeableness coefficients. Inter-species differences in cuticular soaking up are known since long. Brandau and Lippon reported in 1982 that inter-species permeableness followed the following ranking from higher to lower soaking up: coney & A ; gt ; rat & A ; gt ; guinea-pig & A ; gt ; mini-pig & A ; gt ; Rhesus monkey & A ; gt ; adult male ( EU, 2004, P.4-5 ) . From a quantitative point of position rat tegument is 10 times more permeable as human tegument. This was concluded from in vivo informations. ( van Ravenzwaay, Leibold, 2004, p.421 ) . Several surveies have ranked skin incursion rates for different species and concluded that a similar relation ranking is applicable for other compounds. This decision is non good founded because the original probe encompasses merely a limited figure of substances ( Vecchia, Bunge, 2005, p.327 ) .6 Conclusion and recommendationsThe re levancy of in vitro surveies for foretelling in vivo skin soaking up can non be underestimated. Dermal toxicity testing is carried out to determine local and or systemic effects of a chemical due to topical exposure. It may supply a suggestion that the compound penetrates the tegument if it leads to systemic toxicity, but the measure of chemical absorbed is non quantified by this cuticular toxicity survey ( ECVAM, 2002 ) . As a effect more exact in vitro anticipation of in vivo tegument soaking up is a turning aspect of regulative surveies. In instances where no transdermal soaking up informations is obtained for a compound, it is accepted that 100 % of the chemical topical applied is systemically available. This is a extremist and conservative policy, and more precise information on transdermal soaking up will take to more comprehensive hazard direction for chemicals ( Jakasa, Kezic, 2008, p.281 ) . In vitro surveies present a figure of benefits compared to volunteer homo or animate being surveies, among which time- and cost nest eggs, improved duplicability for transdermal soaking up, and lower fluctuation due to less restricted parametric quantity ( WHO, 2006, p.38 ) . Important advancement is made in standardisation of in vitro transdermal soaking up, but betterment in correlativity between in vivo informations, has non yet been realized ( Jakasa, kezic, 2008, p. 282 ) . Still variableness is a cardinal job in in vitro transdermal soaking up measuring ( Chilcott et al, 2005, p.633 ) . Cuticular soaking up experiments following the OECD TG 428 and TG 427 have been accepted by the EU governments, although they are widely applied without go throughing an detailed proof procedure as it is common pattern today ( SCCS, 2010, p.8 ) . It is known that fluctuation in in vitro permeableness measuring may be caused by the possible usage of different tegument theoretical accounts ( WHO, 2006, p.17 ) , but the OECD 428 TG still allows the usage of these different theoretical accounts ( OECD, 2004a, p.3 ) . Therefore it is recommended that for hazard appraisal one criterion tegument beginning should be internationally accepted ( WHO, 2006, p.124 ) . Human tegument is a valuable option, nevertheless it is non easy to acquire all the clip. Further human tegument samples from venters, human leg, or chest and in add-on full thickness ( 500-1000 µm ) human tegument samples are recommend ( OECD, 2010, p.10 ) in order to minimise fluctuation. Today in pattern rat and hog tegument ar e the most favourable in in vitro transdermal soaking up experiments. An in vitro survey in rat tegument in isolation of other information is most likely of restricted regulative significance due to overestimate of skin soaking up. Pig skin tissue is a good option but particular competency is urging ( OECD, 2010, p.9 ) . This fluctuation in skin barrier map among different species finds its beginning in morphological differences particularly fluctuations in the denseness of hair follicles and histological differences in degrees of free fatty acids and triglycerides that appear to be important factors for fluctuation ( Netzlaff et al, 2006, p.499 ) . Beside the acknowledgment of one gold criterion tegument type for both in vitro and in vivo soaking up. Extra probe is indispensable to heighten and standardise methodological analysis to cut down variableness in in vitro transdermal soaking up experiments. Additional internal and external quality controls such as: validated analytical methods, cross-check made with a high quality criterion substance, cogent evidence of skin barrier public presentation and appropriate tegument readying are needed. Besides the usage of a mention membrane and standard substance as an secondary control is urging ( WHO, 2006, p.124 ) . Reconstructed human cuticle ( RHE ) may function as high-quality mention membrane ( Sch & A ; auml ; fer et Al, 2008, p.183 ) . Testosterone, caffeine, or benzoic acids are proposed as standard substance for proof during the executing of soaking up checks. Unfortunately the OECD TG 428 does non demand this standard substances/membrane to be measured together with the surve y under reappraisal ( OECD, 2010, p11 ) . Therefore a reappraisal of the OECD guideline from 2004 is recommended. Alternatively important correlativity between animate being and human theoretical account based on permeableness coefficients can supply grounds of unity of the usage theoretical account ( Vecchia, Bunge, 2005, p.306 ) . For some systems a correlativity is found between in vitro/in vivo informations obtained in animate being and in worlds. However there are besides many instances turn outing low correlativities. Today merely a little sum of validated correlativities have been published ( Godin, Touitou, 2007, p.8 ) . More attending should be paid to correlate in vitro and in vivo informations ( WHO, 2006, p.125 ) . Particularly for specific classs of chemicals such as pesticides, cosmetics and industrial chemicals where extra probe may ensue in development of a more altered and – elaborate counsel paperss ( Jakasa, Kezic, 2008, p.286 ) .Appendix: TablesTable 1: Appraisal of skin soaking up utilizing combination of surveies.Animalin vivoHumanin vivoAnimalin vitroHumanin vitroTa ble 2: Cuticular thickness in different groups Skin scours Thickness in  µm Mentions Hog ear 72 Jacobi et Al, 2007, p.22 Human shoulder 70 Jacobi et Al, 2007, p.22 Rat 32 Godin, Touitou,2007, p.3 Rabbit norm 10-29 Parchami, Dehkordi,2010, p.610

Communication And Newspaper Essay

Racism and sexism were a major part of the 1950s and 1960s, with very few newspapers or magazines being able to maintain neutrality in their printed word against such hate. The Watts riots of Los Angeles in the movie, Heat Wave, involved attacks of a bigoted police force against black individuals who had very little education, were living in poverty, with most of the people having no jobs–with unemployment being higher here than anywhere else. Many of these individuals felt they were being prejudiced against, with only five of the actual 205 police officers involved in the riots being African-American. In the movie, the Los Angeles Times reporter was played by Robert Richardson, as white reporters were not allowed in the area, which was a reverse discrimination of the riot itself. The whole picture was about racism, poverty, desperation, and feelings of anxiety and striking out against the world with feelings of   â€Å"enough is enough.† It also is about how someone in the lead role of a intolerant and racist police chief can influence whole neighborhoods of the African Americans, leading them to feelings of hopelessness and despair, eventually leading to the Watts riot which led to even more riots across the country as people began rebelling against their treatment. The movie Crash was also portrayed in Los Angeles, and also involves racism and prejudice. If possible, in a more dramatic way it regards how people interact with each other and how they develop a first impression based on race or statement, forming feelings of prejudice. It seems as if the movie is totally about relationships and different races of people, telling how we get all messed up inside and form wrong impressions about things that maybe later on we would never consider. The role of Officer Hanson in Crash psychologically seems to continue from the raging police in Heat Wave, yet here it shows that behind the scene of their abusive personality, it shows another side of racism in a different form of view, even though it brings up more violence and maybe other things causing it. It is a step-up in the picture of how discrimination, racism, and sexism develop in societies and within individuals. It is not always a black and white scene, but has many variables involved in it. In Crash, the viewpoint changed from the reporter’s view on how something can happen like a riot of minorities, or a car hi-jacking, as portrayed to the public or world to see how something can develop from the viewpoint of the stereotyped races—eventually even seeing things from the viewpoint of the police and why they feel the way they do. The third way of thinking refers to the scene in the movie Come See The Paradise, almost as if completing the circle of prejudice and racism. The writer of Crash felt that intolerance was a collective problem that needed to be explored along with shared humanity, almost as a â€Å"gang effect.† In the movie Come See The Paradise, Jack McGurn is a union organizer in New York City that is parallel to the police in the other two movies in regard to status and position, but finds himself on the wrong side of the law, also similar to the car hi-jackers or the rioters in the previous two movies. Fleeing to Los Angeles, he becomes involved in the Asia-American world, which involves racist and sexist as the blacks or Japanese, but he is the one who is prejudiced against when he tries to marry Lily, an Asian-American woman, by her father. The state of California also is prejudiced by their relationship by refusing to marry them, which forces them to flee to Seattle where they can wed. Prior to the prejudice and rioting of the 50s and 60s, â€Å"Civilian Exclusion Order No. 92† became the forced removal of all Japanese and Japanese-Americans from their homes into detention camps, with very few actually knowing where they were going or why. After WWII was over, and the Japanese Internment was actually admitting to as a wrong–doing by the United States, the Civil Liberties Act of 1988 was passed to make sure that the Japanese Americans were repaid for being locked up like criminals, during a time when prejudice and fear took away the rights of our citizens because they were of another nationality involved in a wrong-doing. This was a time when citizens of the United States lost their rights because of who their race was against the power of the United States. They literally had to stand in-line to toilet, to eat, were told when to go to bed, etc.—meanwhile losing their homes, jobs and many family members. Needless to say, their dignity and pride were torn away because they were Japanese, not because of what they did wrong. Similar to the African-American racist riots in the 1960s, with many of the blacks forced into jail and torn away from their homes because they were black, the Japanese were treated just as bad. The African-Americans targeted were jobless, homeless, and drifting throughout life—which were automatic red flags for white police to pick them up. During the Japanese Internment, just being Japanese was an automatic red flag to be put in detention camps during WWII. With about 120,000 of these Japanese-Americans being forced into the camps, it was held in little regard that 2/3 of them were actually American citizens, and had rights under our Constitution, even though they were a minority group. They simply were unlucky enough to be Japanese during a time when the bombing of Pearl Harbor occurred, and they became the focus of the United State’s hate and prejudice. Living in the camps for three years under armed guards, this became a shameful period for our country when we had the audacity to treat our own people this way when they had done nothing wrong other than become a victimized race.   At one time, the Constitution of the United States actually protected the rights of our citizens, but the perfect union was not perfect during this WWII period or even later on, as the minority groups became a separate entity during the WWII as opposed to being a citizen of respect, as did the African-Americans during a later period, and is to this day. In my opinion, the similarity of the Japanese Internment period and the rioting of the 50s and 60s have changed very little, with one group locked up in detention camps and the other in prison. Both groups are imprisoned more due to race and color, by ignorant and bigoted individuals of authority who choose to separate themselves from their victims as beings of superiority. Very few looked at their victims and ask, â€Å"what kind of life did they lead before this moment, and what led to this?† and â€Å"do they consider themselves as criminals and doing wrong, because they were born Japanese or Black?†Ã‚   And did any of the answers justify the actions of their jailers? Race and racism is part of the United States and has very little to do with ethics or morality of the human race. Do we have room for a neighbor of another nationality? No—at the present time due to 9/11 the same thing is happening. How many people who are of the same race as the terrorist groups, are being punished by the United States and its citizen, being questioned in detention camps year after year, and with torturous techniques labeled as acceptable by our President? How different is this from the Japanese Internment period, or the locking up and beating of the African-American people simply because they were overly populated, living in extreme poverty, or uneducated? It is not†¦and we repeat history again and again, never learning compassion or empathy, which is why we are so popular with third world countries that are uneducated, poverty stricken, and over-populated—and who we are 100% prejudiced against.    Bibilography There needs to be the information here of the newspaper coverage, â€Å"the Readings,, of the Japanese-American Intemment during WW2 and the civil Rights movement of the late 1950`s,† which I do not have.

The Function of the Diencephalon Section of the Brain

The Function of the Diencephalon Section of the Brain The diencephalon and the telencephalon (cerebrum) comprise the two major divisions of your prosencephalon or forebrain. If you were to look at a brain, with the skull removed, you would not be able to see the diencephalon, it is mostly hidden from view. It is a small part of the brain nested  under and between the two  cerebral hemispheres, just above the start of the  midbrains brain stem. Despite being small in size, the diencephalon plays a number of critical roles in healthy brain and bodily function within the central nervous system. Function The diencephalon relays sensory information between  brain  regions and controls many autonomic functions of the  peripheral nervous system. It connects structures of the  endocrine system  with the nervous system and works with the  limbic system  structures to generate and manage emotions and memories.   Several structures of the diencephalon work together and with other body parts  to affect the following bodily functions: Directing sense impulses throughout the bodyAutonomic function controlEndocrine function controlMotor function controlHomeostasisHearing, vision, smell, and tasteTouch perception Structures of the Diencephalon The main structures of the diencephalon include the hypothalamus, thalamus, epithalamus (along with the  pineal gland), and subthalamus. Also located within the diencephalon is the third ventricle, one of the four brain ventricles or cavities filled with cerebrospinal fluid. Each part has its own role to play. Thalamus The thalamus assists in sensory perception, regulation of motor functions, and control of sleep and wake cycles. The brain has two thalamus sections. The thalamus acts as a relay station for almost all sensory information (with the exception of smell). Before the sensory information reaches your brains cortex, it stops at the thalamus first. The sensory information travels to the area (or nuclei) that specialize in dealing with that sensory information and then that information passes to the cortex for further processing. The thalamus processes information it receives from the cortex as well. It passes that information on to other parts of the brain and plays a big role in sleep and consciousness.   Hypothalamus The hypothalamus is small, about the size of an almond, and serves as the control center for many autonomic functions through the release of  hormones. This part of the brain is also responsible for maintaining homeostasis, which is your bodys attempt to maintain normal balance, for example, body temperature and blood pressure. The hypothalamus receives a steady stream of information about these types of factors. When the hypothalamus recognizes an unanticipated imbalance, it enacts a mechanism to rectify that disparity. As the main area that regulates hormone secretion and the control of hormone release from the  pituitary gland, the hypothalamus has widespread effects on the body and behavior.   Epithalamus Located in the rear or bottom area of the diencephalon that includes the pineal gland,  the epithalamus aids in sense of smell and helps to regulate sleep and wake cycles. The pineal gland is an endocrine gland that secretes the hormone melatonin, which is thought to play an important role in the regulation of circadian rhythms responsible for sleep and wake cycles. Subthalamus A portion of the subthalamus is made of tissues from the midbrain. This area is densely interconnected with the basal ganglia structures that are part of the cerebrum, which assists in motor control. Other Divisions of the Brain There are three divisions  of the brain. The diencephalon along with the cerebral cortex and brain lobes make up the forebrain. The other two parts are the midbrain and hindbrain. The midbrain  is where the brain stem starts and connects the forebrain to the hindbrain. The brain stem travels all the way through the hindbrain. The hindbrain regulates autonomic functions and coordinates most bodily movement.

Advanced pathophysiology Case Study Example | Topics and Well Written Essays - 750 words

Advanced pathophysiology - Case Study Example The elevated WBC is from the proliferation of immature WBC which continue to increase, however do not mature (Harrison, 2011). The accumulation of immature white blood cells in the bone marrow and blood leads to the replacement of normal cells such as thrombocytes, which leads to thrombocytopenia and a disruption of blood clotting (Harrison, 2011). Therefore, this patient presents with gum bleeding and easy bruising. In addition, decreased levels of leucocytes also increase the patient’s vulnerability to bruising. The replacement of cells also leads to a decrease in the number of red blood cells which are responsible for oxygen transport. This in turn is the reason why the patient developed fatigue and shortness of breath may also have been present (Harrison, 2011). The splenomegaly occurs as a result of extamedullary hematopoiesis as the bone marrow becomes less competent. The reduction of red blood cells due to replacement also leads to paleness. Upper abdominal tenderness c ould be attributed to splenomegaly. Opportunistic infections that occur as a result of the comprised immune system may lead to arthalgia. Describe pathophysiology of ALL. Compare it with other leukemia forms in children The development of ALL is assumed to occur as a result of alteration of a progenitor cell responsible for continuous clonal expansion (Bassan & Hoelzer, 2011). This event can occur in cells of T of B cell lineage which give rise to different types of acute lymphoblastic leukemia. These subtypes are based on the stage of cell development which the transformation occurred. Approximately 80% of ALL cases have been found to originate from B lymphocyte precursors (Onciu, 2009). Several factors have been found to influence the development of this cancer and these include radiation exposure, genetics, chemical exposure and some viral infections such as HTLV-1 (Onciu, 2009). As mentioned above the alteration of the precursor cells leads to an arrest in development. This then leads to the proliferation of immature white blood cells in the bone marrow which replace its physiological components. Therefore, there is a marked decrease in the formation of several blood elements. This may lead to other complications such as thrombocytopenia, anemia and neutropenia (Pui, Relling & Downing, 2004). In addition, the disruption of bone marrow function leads to extramedullary hematopoiesis which occurs in the spleen, liver and lymph nodes (Pui, Relling & Downing, 2004).These organs will then increase in size resulting in hepatomegaly and splenomegaly. This leukemia is different from AML which involves the myeloid blast cells whilst ALL involves lymphoblasts. In the pathogenesis of Acute Myeloid Leukemia, the pathological defect will involve numerous precursor cells which will develop immature (Pui, Relling & Downing, 2004). Meanwhile in Acute Lymphoblastic Leukemia, the effect is on a precursor cell that that will proliferate and produce several immature cells. The etiological factors between the two types of leukemia are also different. AML often occurs as a result of certain preleukemic blood disorders whilst ALL often associated with genetic factors and a prolonged exposure to radioactive substances (Pui, Relling & Downing, 2004). What is the purpose of chemotherapy in ALL? What is a common side effect of Therapy? Chemotherapy is necessary in this condition as the drugs are injected intravenously and can be used to treat cancerous cells that have

A Research on Sister Callistas Roy Adaptation Model Term Paper

A Research on Sister Callistas Roy Adaptation Model - Term Paper Example This model focuses on the responses of the human adaptive system; this may be individual or a group to a dynamic environment. Adaptation is the main feature of the model. Here Problems in adaptation come when the adaptive system not capable of coping with or respond to the dynamic stimuli from the external and internal environments in a way that maintains the integrity of the system.The proponent of the model was largely influenced by Harry Helson adaptation theory. it is this theory that triggered her mind to develop the model. The Roy adaption model is presently one of the major widely used frameworks in nursing practice. It is universally used in nursing. Roy also got influence from Raporpots definition of systems and concepts from Lazarus and Seyle.It fundamental to note that the philosophic beliefs and values that the model is based are that human meaning is rooted in omega point convergence of the globe, people have a mutual relationship with the world and a God figure, thinkin g and feeling mediate human and actions, awareness of self and environment is rooted in thinking and feeling among others.The Roy adaptation model focuses on six step nursing process. It should be noted that in relation to each of this steps or processes, the person called the nurse depends highly developed technical, interpersonal and institutive skills. This is done while assessing and initiating interventions involving approaches like anticipatory guidance, physical care, counseling and health teaching. The Roy Adaption model was first published in 1970. This model presents a human being as a holistic adaptive system in constant interaction with both external and internal environment ( Barone & Roy,1996). The major work of the human system is to maintain integrity in the eye of environmental stimuli and whereas the objective of nursing is to foster successful development. The model focuses on adaptation. This is a key in this research. The model is focused on the roles of a person in a society and when in a group. it should be noted that the fundamental need which underlie the role function of the mode is social integrity and this is the need to understand who is in relation in order that such a person to know how to act. Question three Overview of the model In the Roy Adaptation model the key terms are: regulator subsystem, adaptation, adaptive modes and cognator subsystem. As stated the goal and aim of nursing is to foster successful adaptation. Roy and Andrew1991 define adaptation as the process and outcome whereby thinking and feeling persons as individuals or groups, use conscious awareness and choice to create