Thermoplastic polyester elastomer nanocomposites Assignment

Thermoplastic polyester elastomer nanocomposites - Assignment Example It also shows very good resistance to impact, tear, creep, and abrasion. Inorder to improve to improve mechanical, therma and electrical properties of TPEs (Aso 2006, 2854) fillers such as mica, clays, silica, kaolin, and talc are added (Sreekanth 2009, pg. 272). Mica improves critical properties of TPEs, these properties are cost effective . which are cost effective (Sreekanth 2009, pg. 272). This position has also been supported by LeBaron et al. (1999, pg.12) who argues that composites that show a change in structure and composition over a nanometer length always exhibit property enhancements in comparison to conventioanally scaled composites. Layered silicates which have been distributed as a reinforcing phase on a polymer matrix are an example of such mixture of inorganic/organic nanocomposites (LeBaron et al.1999, pg.12). Some of these enhanced properties are, increased moduli, increased heat resistance and strength, and also decreased flammability (Ray et al. 2003, pg. 2355). For example, in a nylon layered silicate with 2 % with volume of inorgan ic content, doubling of strenghth and tensile modulus is achieved (Giannelis 1997, pg. 675). The reason why nanocomposites exhibit improved characteristics as compared to conventional composites is because the dispersion of clay nano layers increases the number of reinforcing elements available that can deflect cracks (LeBaron et al.1999, pg.13). Coupling between polymer matrix and the large surface area (760 m2/g) increases stress transfer to the reinforcement phase, which enable toughning and tensile improvement by (LeBaron et al.1999, pg.13). In addition, layered silicates thickness are in the order of 1 nm and they also have high aspect ratios in the magnitude of (10-1000) (Ray et al. 2003, pg. 2355). There are various reasons why there is an increase in the high aspect ratios of the nanocomposites.According to Yano et al. (1993), it is possible that the improved barrier

Ethics and Criminal Justice Term Paper Example | Topics and Well Written Essays - 1000 words

Ethics and Criminal Justice - Term Paper Example People who follow ethics are highly acknowledged and privileged by the society. Ethics, values and norms are not defined for the sake of knowledge only rather these are invented to be implemented properly. Simple moral ethics include taking care of sick, obeying of elders, avoiding lies, fair dealings etc. All these are common in every society and every religion of the world. Ethics are included in moral philosophy which involves in making moral judgments about the good or bad and right or wrong. It is obvious that these are absolute truths but also these are desirable by every cultured society (Singer 1995). Ethics and moral standards are of high importance in tackling cases of crimes. There has been every kind of big or small crime occurring round the globe. The world is not a quite safe place indeed. Rates of crimes all over the world particularly in US are increasing day by day. Law enforcement agencies are making their extreme efforts in order to make the world a safe place from these things. But since these are a part of society and the persons who conduct such activities are amongst us, we must have to have a system of rules to guide us in such situations which contain morality. No doubt dealing with humanity requires emotions too; but these only are not enough for making tough moral decisions. Here, ethics are defined in order to make justice and to give a message to other criminals too that they would not be spared from the justice in any case. Ethics in criminal justice sets the standards and limitations of the punishment according to the crime. They are quite helpful in determining the sensitivity of the case and to identify its variation. Once the nature of the crime is identified, then the criminals are charged correspondingly. Researches and analysis on ethics and criminal justice involves all those topics which are tagged under the law and justice. Some typical topics are authority of the state, role of law enforcement forces, providing a safe an d equal opportunity work environment which is free of rational and ethnical basis, crimes and prisoners etc. In order to research upon such sensitive and crucial topics, it is important to have a pre-defined set of moral ethics for a proper and fair judgment (Importance of ethics in Criminal Justice 2012). People who study and research upon criminal justice and critical ethics become able to have some analytical skills and logically reasoning abilities by which they can understand the complexities of different cases and tend to solve them with good moral judgments. By studying moral ethics, all such issues which occur within the criminal justice system can be understood well and criminal justice professionals may take lesser time in order to analyze the sensitivity of the case. They became able to draw consequences more quickly and enforce actual punishments as required by the crime. Since these professional are given power and authority to handle cases on their own; and in some cas es they may use or permit the use of physical force upon the criminals, it is necessary for them to have an in-depth knowledge of moral ethics so that they can distinguish between the limits and try as much as possible to keep make humanitarian decisions. They must not mis-use their authority and must not use it for personal purposes and benefits (Felkenes 1987). Since the subject of ethics belongs to the philosophy of life, we must understand and elaborate it in these terms. There

Discuss the evidence, or lack of evidence, that exists to support the Essay

Discuss the evidence, or lack of evidence, that exists to support the use of adrenaline (epinephrine) in cardiac arrest in pre-hospital setting (ambulance work) - Essay Example patients outside of hospital had no substantially greater success or improved survival rates over medical technicians supplied with basic CPR skills and semi-automatic defibrillators (paraphrased from graphs. 1-3). In a related study (Heart, 1997), researchers found results consistent with a continued skepticism over the use of adrenaline. According to this article, "Some emergency medical staff were authorised to give standard doses of adrenaline during the observational period. Adrenaline was given to 35% of patients and was associated with a significantly greater rate of restoration of spontaneous circulation and hospital admission. However, there was no significant difference in hospital discharge rates between the two groups. Thus adrenaline and its dosage during cardiac arrest remain controversial" (412-414). It appears that when paramedics and other qualified emergency medical personnel give adrenaline to cardiac arrest patients in the field, it significantly improves the chance that the patient will live long enough to be admitted to the hospital, but it does not significantly improve the chance that patient will survive long enough to be discharged from the hospital. Adrenaline is good for buying the patient an extra few hours or an extra day filled with tests and possibly some invasive treatments. It may not be good for much more. It should be pointed out that these findings may be more germane to patients who are found in ventricular fibrillation, rather than asystole. According to a study carried out in Sweden and reported in Resuscitation (1995a) Jun;29(3):195-201., "A large proportion of cardiac arrests outside hospital are caused by ventricular fibrillation. Although it is frequently used, the exact role of treatment with adrenaline in these patients remains to be determined. AIM: "To describe the proportion of patients with witnessed out-of-hospital cardiac arrest found in ventricular fibrillation who survived and were discharged from

Case Study Assessment Essay Example | Topics and Well Written Essays - 2250 words

Case Study Assessment - Essay Example 14). However, while this definition of leadership highlights the essence of leadership, it is only one of the numerous of definitions that have been proposed in the literature: the second edition of The Handbook of Leadership by Bass lists more than 130 definitions of this phenomenon and 13 major approaches (Bass, 1990, p. 12). Availability of such versatile data significantly facilitates analysis of problems related to leadership because in many cases the existing approaches and definitions are not mutually exclusive but rather complementary. The present report is an attempt to analyze a situation that provides valuable insights into the most essential aspects of leadership and is directly linked to effectiveness of managerial work. The story of Ted Willis who has been hired as the new supervisor suggests he is likely to face the classic type of leadership problem: the new leader vs. the old leader. One should not get misled by the fact that Ted is the new supervisor and the old supervisor has been fired. ... The so-called 'workers of influence' theory of leadership is particularly important to understand the distinction between managers and leaders. The key idea of this theory is that leadership may be exhibited by anyone in the organization in any type of position (Yukl 1989). According to this theory leaders may operate at different levels within the organization and within the same hierarchical level as their followers. Such perception of leadership conflicts the traditional theories which treat it as a set of attributes and behaviors exhibited by persons with legitimate power. Etzioni (1961) undertook the pioneering research effort to prove existence of leaders operating on the same hierarchical level with their followers. This type of leadership is labeled as 'informal' which means the leader does not possess official power over his followers, as opposed to formal leaders-managers that exert influence on subordinates by virtue of their higher hierarchical position. While the important role of informal leaders during organizational changes has been discussed in the literature, little is known about sources of their power and how traditional literature on leadership can be applied to them (Antonakis, Cianciolo, & Sternberg, 2004). Existence of such leaders demonstrates that sources of power for leaders and managers are not necessarily similar. In our case, this theory reasonably suggests that Ted's position does not automatically make him the leader - the most influential person within the group. Furthermore, the group already has an established long-time informal leader: that troublemaker who has managed to keep from getting fired because he is the only employee who knows the inventory

Arizona Prop 200 Essay Example for Free

Arizona Prop 200 Essay As with any other impositions of the law elevated to the national government, there will always be a certain degree of advantages and disadvantages. In a specific aspect, implementing the Arizona Prop 200 will definitely change the economic processes of the US financial system.   Ã‚  Ã‚  Ã‚   The Arizona Prop 200 is an initiative which allows for a more strict process of requiring citizens to generate proofs of legitimacy of their citizenship. This equates to the right to vote and to acquire public benefits from different administration units. (Wikipedia, 2007). The main effect of the project can be seen in terms of financial considerations with respect to the actual expenditures of the entire federal government. Since there will be an increase in restrictions to sort out whether a particular person is a US citizen or not prior to be able to vote and get citizen benefits, there will also be an increase in expenses in order to adjust the budgetary allocation for the said government program. Doing some additional tasks and employing much more people in order to identify legitimate citizens will mean additional resource facilitation. Thus, allocation processes for the use of money will be altered.   Ã‚  Ã‚  Ã‚   In a positive perspective, it is also possible to maximize the route of budget allocation which should be granted to the public’s needs and welfare. Since there will be a very good way of identifying people who are eligible to receive the government benefits, sufficient financial amounts will be sustained in a very optimized manner. All the collected taxes will be used by people who are actual legitimate citizens of the United States. Aside from achieving financial advantages, it would also be fair for the actual tax payers to receive the benefits they are entitled to. References Wikipedia. 2007. Arizona Prop 200 (2004). Wikipedia-The Free Encyclopedia. Retrieved November 16 2007 from http://en.wikipedia.org/wiki/Arizona_Proposition_200_(2004).

Is Google Making Us Stupid Essay Example for Free

Is Google Making Us Stupid Essay Since the development of Google, there has been a vast amount of information available on various topics or subjects. â€Å"Is Google Making Us Stupid?† explains and examines the different ways that the internet has been more useful and beneficial, according to the words of the author, Nicholas Carr. According to the readings, the author represents and expresses his thoughts and ideas using logos. Take for instance when Carr expresses that he once was a scuba diver in a sea of words, but now he zips along like a guy on a jet ski (Carr p. 534). Carr expresses that he once was a person who hardly used the internet but now he is one who uses it on a regular basis, making feels that someone has been tinkering with his brain, making it change. No longer does he enjoy reading a book of any length because he cannot sustain concentration on the book. Carr feels that all the time he now spends online is affecting his abilities to concentrate and recognizes that the Internet has been a useful tool for him to search for information and communicate. Carr notes that, unlike footnotes, links send you to the information rather than just refer to it. Reading is not an instinctive skill the way learning a language is, requiring us to teach our minds to translate symbolic characters into the language we understand. Media and technologies used to learn and practice reading shape the neural circuits of our brains suggest that readers of ideograms used in languages such as Chinese develop a different mental circuitry than readers whose language uses an alphabet. These variations extend across many regions of the brain, including functions that govern memory and the interpretation of visual and auditory stimuli. It is reasonable to assume that circuits woven by the use of the Net will be different from those woven by reading books and other printed matter (Wolf p. 536). Using Google makes it easier for several people to perform functions on a daily basis. Changing the way the world researches and finds answers to several questions with various tabs and several articles, Google is believed by many to not make up stupid. In conclusion to this, several others agree that it may be an untraditional method of research, but it sure does cut down on time.

Essay --

Imagine: boy meets girl, they fall in love, they marry, they die out of passion for each other. Now imagine this happening over the course of three days. Does the love they shared appear as true as before? Romeo and Juliet is known as one of the most romantic story ever written, though the Prince could not have said it any better, â€Å"For never was a story of more woe / than this of Juliet and her Romeo† (5.3.320-321). It's almost ironic how Shakespeare's play is often thought of as a story of true love, and not as a tale of two immature youth who believe they hold more than simply infatuation. Shakespeare shows that the love shared by Romeo and Juliet is nothing more than naà ¯ve attraction. For instance, (cut here?) Romeo is depressed about being â€Å"out of love† meaning the attraction he feels is not mutual, but he instantly forgets about his lovesickness, and the one he was in love with, when he locks eyes with another girl. This means that he never actually h ad true love to begin with as he first thought. There are characters in this story of immature love who recognize the inconsistency of Romeo's love and that Romeo’s feelings are nothing more than sexual attraction. (NOTE: FIX THESIS!) When Romeo is first introduced, he is depressed about being â€Å"out of love† because Rosaline, the girl he is supposedly in love with, does not return his affections. In Benvolio's attempts to persuade Romeo to forget her and find other women at the Capulet's party, Romeo angrily yells, â€Å"One fairer than my love? The all-seeing sun / Ne’er saw her match since first the world begun† (1.2.98-100). He says that no one could possibly match the beauty of Rosaline. Romeo believes he knows love, but really, he wants love. He is in love with the idea of being... ...m a true love. Even Juliet was ignorant enough to say â€Å"That ‘banishà ¨d,’ that one word ‘banishà ¨d’ / Hath slain ten thousand Tybalts† (3.2.124-125) after Romeo had killed Tybalt and was banished for it. She is stating that banishment is worse than the murder of ten thousand Tybalts. Though, who is to say what true love is and how long it takes to develop? Romeo and Juliet could in fact be in love, but it cannot be denied that they are going about it in an immature way. Romeo believed he had found eternal love with Rosaline, but one look at Juliet and he forget about his lovesickness and then decided Juliet was his true love. This inconsistency was seen by other characters such as Mercutio and Friar Laurence, who say that Romeo’s feelings were merely infatuation and not love as he had said they were, showing that Juliet is a replacement Rosaline. (NOTE: FIX CONCLUSION!)