Candide by Voltaire Essay

In the beginning of 17th century and the peak of 18th century, there was a movement known as â€Å"Enlightenment† which encompassed a wide variety of ideas and advances in the field of philosophy, science and medicine. Voltaire embodies the Enlightenment more than any other intellectual or writer. Enlightenment is also called the age of Voltaire. The followers of the movement had profound faith in the power of reason and rational thought. They believed that this philosophy would lead human beings to a better social structure. They attacked both the aristocracy and the church. In ‘Candide’, Pangloss and his student Candied maintain that â€Å"everything is for the best in this best of all possible worlds†. This idea is a simplified version of the philosophies of the enlightened thinkers, most notable are Gottfried Wilhelm von Leibniz. These philosophers believed that God exist and since God is perfect, so the world he created must be perfect too. They argued that people recognize imperfections in the world only because they are not aware of God’s grand plan. Voltaire does not accept that a perfect God or any God exist. Throughout the novel, he mocks the idea that the world is perfectly good and heaps merciless satires on this idea. The optimists Pangloss and Candide suffer and witness a wide variety of horrors- whipping, rapes, robberies, unjust execution, disease, earthquake, betrayal and crushing world-weariness. After Candide was thrown out of the castle of the baron Thunder-ten-tronckh, he was handcuffed and carried to the Bulgarian regiment. He witnessed the atrocities committed by the Bulgarians on the Abarian territories after winning the battle against King of Abres. They burn down villages, ravish young virgins and kill men and women alike. While travelling on ship to Lisbon along with Pangloss and the Anabaptist James they face a tempest. In Lisbon, they faced a violent earthquake, which destroyed three-fourth of the city of Lisbon. At the advice of the sages of the country, Dr Pangloss and Candied are secured for burning them alive for the infallible prevention of earthquake. In Surinam, Candide is robbed of his wealth. The lady he is in love, Miss Cunegund suffers too. She is ravished by two Bulgarians and receives two deep wounds in her belly. Her own castles are demolished and she witnesses the brutal murder of her parents and her brother. Though born a baroness, she is reduced to the station of a cook-wench. In the end she becomes the slave of Transylvanian prince and turns ugly and even Candide finds her repulsive. Pangloss the philosopher is reduced to a slave of a Turkish captain and Candide sets him free from slavery by ransom. These events only points to the cruelty and folly of humanity and indifference of the natural world and do not serve any good purpose. Pangloss struggles to find justification for the terrible things in the world but his arguments turn out to be absurd. In the end of the novel, Pangloss admits that he does not believe any more in his own previous optimistic conclusions. This example of events showed how Voltaire established his opposition towards the Christian Doctrine. He imposed Enlightenment through Pangloss’ characterization – its struggles and sufferings despite of his faith and ideology towards Christianity. The most glaring flaw in Pangloss’s optimist is that it is based on abstract philosophical argument rather than real-world evidence. In the chaotic world shown in the novel, philosophical speculations repeatedly prove useless and sometimes destructive. Again and again, it prevents characters from making realistic assessment of the world round them. It also stops them from taking positive action to change adverse situations. Pangloss is a character who is most vulnerable to this sort of folly. He checks Candide from saving the Anabaptist James from drowning during Tempest by demonstrating to him that the roadstead of Lisbon had been made on purpose for the Anabaptish to be drowned in there. When Candide lies on the ground covered with stones after the violent earthquake in the city of Lisbon, Pangloss ignores him request for oil and wine and instead makes great effort to prove the causes of the earthquake. Throughout the novel, Candide’s confusion regarding the philosophies of Pangloss is very much evident. When Candide and Cacambo are held by the armed Oreilles and they cry out: â€Å"A Jesuit! a Jesuit! we shall be revenged; we shall have excellent cheer; let us eat this Jesuit; let us eat him up†. Candied cannot accept the philosophy of Pangloss that everything is right. Voltaire elaborated his stand towards the issue of Enlightenment and Counter-Enlightenment. He explained through his novel the arguments of enlightenment through the characterization of Candide and counter-arguments through the characterization of Pangloss. Voltaire did not only encompass the existence of his philosophy for his belief in Enlightenment but also the existence of science, religion, and society. This criticism of philosophy that encompasses Candide is much more surprising and dramatic given Voltaire’s own status of a respected philosopher of the Enlightenment movement. Voltaire satirizes organized religion in his novel ‘Candide’. A series of corrupt, hypocrite religious leaders emerge throughout the story. The reader encounters the old women (who assist Candide and Miss Cunegund), daughter of a Pope. The pope, a man who as a catholic priest should be celibate, instead he is shown married in the story. A Catholic Inquisitor hypocritically keeps a mistress. A Franciscan friar steals all the jewellery of Miss Cunegund. Despite the vow of poverty taken as a member of the Franciscan order, he operates as a jewel thief. Finally the author introduces a Jesuit colonel who has marked homosexual tendencies. In the story religious leaders are shown to tyrannize humanity. The baroness Miss Cunegund is reduced to the status of a wench by My Lord Inquisitor. Candide meets the Pope, an orator who sermonizes on the subject of charity. The orator abuses and threatens him when he begs for food and his wife discharge a utensil full of water on him, thinking that he has accused him husband of being antichrist. Voltaire criticizes the superstitions of religious practice through the incident where sages of Lisbon decide that few men should be burnt alive to prevent further earthquakes. In the novel, the religious leaders also carry out inhuman religious oppressions against those who disagree with them on smallest theological matters. The Inquisitor persecutes Pangloss for expressing his ideas and Candide for simply listening to him. Pangloss is hanged and Lord Inquisitor preaches and cruelly whips Candide. Voltaire presents several examples of hypocrisy and immorality of religious leaders but he does not condemn the everyday believer of religion. James is a member of a radical protestant sect called the Anabaptists. These scenarios proved the idea of Voltaire towards Christianity and Enlightenment. Even if he put these elements to show the rationality of his evidences and justifications, it still shows that Christianity does not fill the incompleteness of radical belief. It also implies that Voltaire attacked the weak points of Christianity and give way to the strong points of Enlightenment. Throughout the whole novel, Voltaire made a distinct differentiation between Enlightenment and Christian Doctrine. However, it was seen that the arguments of Enlightenment brings positive evidences for its justification while Christian doctrine is obtained as negative integration of knowledge and conception. This criticism can be seen through the struggle, sufferings, and situation of Pangloss. In the end of the novel, Pangloss made up his mind and went through the light of Enlightenment as he started not to believe from his old principles and convictions. This resolution also made its readers become attracted to the illumination of Enlightenment. As a whole, Voltaire’s novel ‘Candide’ not only censure Christine regimes of power and the arrogance of nobility, but it also condemns certain aspects of the philosophical movement of the Enlightenment. It attacks the theory of optimism that argues that rational thought can restrain the evils committed by human beings.

One Lonely Evening Essay

Do Sunflowers have a faster grow faster when watered with clean drinking water from the tap or with rain water collected outside? Hypothesis If both plants receive the same amount of water each day, then the plants receiving rain water would have a faster growth rate. This is rain water has more nutrients in it then regular drinking water. These nutrients would make the sunflowers grow at a faster rate than the sunflowers with regular water. Variables Independent: the type of water, either clean drinking water from the tap. Dependent: the growth of the sunflower. Control: Each plant will receive the same amount of water as any other. Also the plant will receive the same amount of sunlight as each other, lastly the plants will be measured and water at the same time every day. Control of Variables The way that the variables will be controlled are the plants will receive the same amount of water ( ¼ cup daily). This is to insure that they receive a proper amount for the plant to survive. The amount of light that the plants will obtain will be from the sun. The plants are to be placed in the same window to receive the same amount of lights (preferably a bay window). The plants will be measured the same time daily and also watered the same time daily so that there is no confusion that the plants could have had more growth time one day. Also, the plants will be measured with the same ruler every time they are measured to ensure the measurements are equal. Materials The materials needed for this biology lab are: * 10 sunflower seeds per type of water (total of 20) * 20 separate planters * A ruler (for measurement) * Two  ¼ cup for watering the plants * Source of rain water * Source of clan drinking water * Light source, the sun * Soil | Ruler ¼ Cup of waterSunflowerSunflower seedSoilPlanter| Method For starting the lab first place the even amount of soil into the 20 planters. After the planters are equally filled with soil dig a hole in the center of the each planter, 3 cm deep. Place the seeds into the holes that were just dug in the planters, and separate the planters into 10 rain water planters and 10 drinking water planters. When lining the planters up place the planters every other so that they will receive the same amount of light and one not the other receives more than the other (ex. Rain, Tap, Rain, Tap†¦). Be sure to place the planters to a window that receives a large amount of natural light. After the lab is all set up then the plants are to be watered with  ¼ cup every day at the same time daily (a good amount for them so they are not over watered). The seeds will take time to germinate; they should be checked every day. The measuring is to be started after the sunflowers have broken through the soil and are showing above the soil. For the lab the plants are to be measured everyday at 7pm for the growth from the previous day. After the Experiment has gone for 31 days, look at the results and calculate the average for each of the days and also calculate the standard deviations. Conclusion The following experiment supported my hypothesis of sunflowers watered with rain water will grown faster than those watered with clean drinking water from a tap. This is shown in the data I have collected; it is shown when you compare the average heights of the sunflowers during the trials. The average height of the sunflowers being watered in rain water was higher than the flowers being watered in tap water the last day the average height for the flowers watered with rain water was 19.28 cm while the flowers being watered with tap water was only 13.59. Another indication is that the error bars that are shown on the graph are not as large in the rain water as they are in the tap water and also the rain water flowers heights where closer to one  another than the flowers being watered in tap water. The flowers being watered with rain water broke the soil earlier and had a much more rapid increase in height than the flowers watered in the tap water. With all this evidence, it is clear that the experiment supported my hypothesis and rain water allows plants to grow faster than regular clean drinking water. Evaluation Evaluating Errors One of the errors is that the length of time that this experiment was conducted in. The experiment was conducted in 31 days; this amount of time was too short because it takes on average for sunflowers to germinate from7-14 days. This length of time is valuable time that is being wasted from the waiting for the flower to geminate. Another error that can be spotted in the experiment is the lighting. This experiment was done in the month of December. This month has one of the shortest day light hours which created some problems with how fast the plants grew because of the lack of light that they have received. Improvements One improvement in that can be made in my experiment is how the plants were watered. They were all watered with a  ¼ measuring cup, but it is hard to have precisely  ¼ cup for each plant. This can be better measured with a larger cup that has the labelling of  ¼ cup on it. This improvement will allow the water to be measured more precise and will allow equal measuring to each plant. The temperature of the water is another improvement that can be obtained in this experiment. The water that was given to the plants during the 31 day duration was not measured for temperature. The temperature of the water can help the plant with its growing. The way that this can be fixed is prior to watering the plants be sure to measure the temperature so that the temperature is always the same and there is no flexibility in the temperature of the water. Last improvement that could be made to allow the experiment to be more precise and accurate is for the collection of more data to occur. The way that this improvement could be placed into the experiment is by either extending the length of time of which the collection of data is recorded, another option would be to collect the data twice daily to allow more measurements to be recorded.

Request for Proposal (Burger King) Essay Example | Topics and Well Written Essays - 3750 words

Request for Proposal (Burger King) - Essay Example tional investments proposed by Burger King are aimed at ensuring that the firm expands its service and offered services to the local and international client bases. Determining the levels of investments is essential, in meeting the firms’ capability. In focusing on these factors, Burger King is able to meet the market demands and requirements. Analyzing the market will be essential in ensuring the firm produces quality service to the potential market. In focusing on the space management, the firm has the capability of ensuring quality management of the space allocation. The new restaurant would focus on maximizing profit and working towards ensuring the firm attained its goals and meet the financial obligation set by BCAD. The site location is suitable in attracting enough customers per given time. The effective nature of the firm would play part in ensuring the firm provides competitive services that would attract clients and increase BCAD revenue collection. The potential market is essential in determining the models to be deployed by Burger King to ensure mutual benefits for the firm and BCAD. The focus will be to venture into the restaurant services and focus on quality delivery and provide a competitive edge over potential rival firms. The market is wide and the manner in which a firm positions it among the elite will determine the levels of success. The firm has the ability to use its vast experience in the service industry to ensure maximum benefits for BCAD and the firm’s internal obligation. The firm has the capacity to handle a large number of clients and still maintain the quality service required of the firm. The experience the firm has in the field gives it an advantage age over other firms. Experience plays part in determining what services to be offered at a given time period. Maximizing return will be determined by the levels of models used b y the firm. The firm has the duty to oversee the location and ensure it works at full capacity and

English 305 Essay Example | Topics and Well Written Essays - 750 words

English 305 - Essay Example al. 67). Broadly, the types of criminal activities handled by the Wood vale sub-federal police department include the following; robbery with violence, domestic violence, carjacking and pick pocketing among other petty criminal offenses. Robbery with violence was rampant with 34% reported cases in the first quarter of the year in the months of January through to march. In the criminal investigating department, this was due to police departments’ leniency in the first quarter months to tackle robbery with violence criminal activities. In the second quarter in the months of March through to June, the robbery with violence cases reduced to 17% (Conser et. al. 91). This was because of stringent rules and regulations by the police department, which were aimed at reducing this criminal act. Domestic violence was also at a higher percentage at the beginning of the year. This, however, has reduced in the second quarter due to the adoption of the community policing policies. Psychologically and socially, the domestic violence criminal activities are more inclined towards the communities’ policing hence it was a good idea for the police department to take part in the community related criminal control mechanisms . Carjacking criminal activities have reduced from 54% to 30% while pick pocketing has reduced from 43 to 22 percent. The Woodvale groove region is a place in the woodlands thus most of the car robbery incidences are often carried out in this region. The inaccessibility nature of this area perhaps makes it easier for the car robbers to maneuvre their way into the woodlands. As the police department, over the second quarter of the year 2014, we engaged in various highway traffic operations. These operations aimed at the identification of cars and their ownership. These operations have reduced carjacking incidences. Lastly, pick-pocketing incidences have also reduced by 21 percent in the second quarter months of the year

No topic Essay Example | Topics and Well Written Essays - 500 words - 25

No topic - Essay Example Teamwork is the new individualism in most organizations and industries and hence all employees or employees to be are expected to be able to understand the dynamics of team work and work well with the team members to increase productivity and do so within the provided time frame. Working in teams is not as easy as it may sound as each team member has different personality and a combination of all this may either crash or empower the team in general. What is important to understand is the personality of each team member and how this personality can improve the efficiency of the team for example extroverts can negotiate deals. Leadership of the team is also important as the chosen leader should be assertive, good listener, dedicated to the team and the work, and should be a risk taker and do both leading and following. The team should be able to understand each other as well as find ways to remain motivated and solve their differences if it is to remain together and succeed. Ethics are another important issue in any work environment as breach of ethics may result to negative consequences such as getting fired, lack of promotion among other negative consequences. Every company and industry has its own particular set of ethics and ethical conducts expected from people in that industry. The presentations covered some of these ethics and also shed light that these ethics are the solution to any dilemma that is work related. Thinking outside the box is not as easy as it sounds as it involves doing more than just mediocre thinking which is what many people engage in. It involves not just everything at face value and trying to seek the meaning and reason behind it. It also requires an employee to seek solutions to problems even those that seem impossible through thinking of alternative solutions and different approaches to understand the problem better. These three

Analytically Essay Example | Topics and Well Written Essays - 1250 words

Analytically - Essay Example ‘Recitatif’ showcases the impact of mothers on the children and how it helps to build their character in the long run. Hazel is the protagonist of ‘Gorilla, My Love’ and Twyla is the key narrator of ‘Racitatif’. Both are strong influenced by their mother. Hazel is interesting mix of childish curiosity and strong demeanour that is intolerant of anything that is perceived as wrong and takes up the cudgel to fight for their rights, just like her mother. Hazel’s mother supports her unconditionally in her fight against any injustices. The writer confirms that that her mother ‘come up there in a minute when them teachers start playin the dozens behind colored folks’. She had learnt to fight for her rights, even when the opponents were much older than her! It was quite evident when she confronts theater manager for refund because the movie was not about ‘Gorlla, My Love’ but a religious movie. When she is not taken seriously and does not get refund, she deliberately ‘lit a candy stand on fire’. This reflects Hazel’s strong will and her desire to be taken seriously. Hazel’s shows the same tenacious nature when she is informed that her uncle had changed his name in order to get married. She is upset when Hunca Bubba becomes Uncle Vale which is unacceptable because it challenges the very values with which she was brought up, the values which forbid lying as bad. Moreover, her Hunca Bubba now cannot marry her as because ‘that was somebody else. I’m a new somebody’ (Bambara, 4). Hazel is confused and upset because her beliefs that elders stick to what they say has now been shattered. The way children are not taken seriously and lied constantly on small pretext by elders presents the dilemma of growing up that is probably faced by all children. Twyla’s mother, on the other hand tends to covertly influence her behavior which is reflected when they follow their morals in their growing up stage. Her mother

Realistic Pragmatism Essay Example | Topics and Well Written Essays - 1500 words - 5

Realistic Pragmatism - Essay Example Pragmatists have instead developed their argument on the notion that a thought acts as an instrument that can predict, solve problems or even act. In addition, they argue that most of the topics in philosophy like concepts, knowledge, meaning, belief, and nature of knowledge as well as science can only be seen in terms of their practical uses and successes instead of how they have been employed to stand for accuracy. As a philosophical movement, pragmatism started in America in the 1870s. The direction of this philosophy was mainly determined by various members of The Metaphysical Club like William James, Chauncey Wright, George Herbert Mead, as well as. This term was first employed in the fiscal year 1898 by William James who credited Pierce for coming up with the term. James considered Peirce’s work of 1877–8 dubbed "Illustrations of the Logic of Science" series as his main basis for his thoughts on pragmatism. Consequently, this made Peirce, in turn, to write in the fiscal year 1906 that Nicholas St. John Green had been instrumental. He greatly emphasized the significance of applying the definition of belief that Alexander Bain looked into. Bain’s argued that belief meant something that a man stands on when he is prepared to act. Peirce stated that this definition makes pragmatism to become scarcer than a corollary. Pierce saw that this definition made Bain be regarded as the grandfather of pragmatism. William James’s book, dubbed Pragmatism (1907), was able to gather together various lecturers that he had been teaching on the philosophy since the fiscal year 1898. The book was able to launch an interest in pragmatism. Furthermore, a lot of controversies has arisen on what the meaning of pragmatism is. Many critics of the early times saw James as the father of the philosophy.  Ã‚  

American Single Parent Households Essay Example | Topics and Well Written Essays - 3000 words

American Single Parent Households - Essay Example ey gradually proceed towards becoming adults, the psychological and economic stresses that a child has to endure as a result of being forced to come to terms with a household which lacks a parent and which may have strangers as family members often hinders a child’s normal development and growth. Children living in single parent households often present a lack of academic achievement and a tendency for delinquency as a result of deficiency in parental care. The dynamics of a family or a household can be considered in terms of the conflict within a household or an individual’s assessment of reality, which generally have a broad impact on households and the lives of their members. This brief essay attempts to present an examination of the American single parent household from the conflict and symbolic theory perspectives and then presents a comparison of American single parent households with those in the United Kingdom. I hereby certify that, except where cited in the text, this work is the result of the research carried out by the author of this study. The main content of the study which has been presented contains work that has not previously been reported anywhere. From a public policy perspective, out - of - wedlock births and fatherless families are often the issues of greatest concern to policymakers, but it has to be appreciated that fatherless families are created by death, divorce, separation or imprisonment and motherless families may also be created as a result of similar circumstances (Ellwood 1 - 10). Changes in societal values and life styles have meant that a significant number of out – of – wedlock births are likely to be cohabiting with fathers and mothers who may be living together without officially having married, or they may have separated prior to marriage. Despite the individualism of the American psyche, it is still possible that children who are living with a single parent, especially those who are living with their mothers, may

Nupath Foods Inc Essay Example for Free

Nupath Foods Inc Essay James Ornath read the latest sales figures with a great deal of satisfaction. The vice president of marketing at Nupath Foods, Inc., was pleased to see that the marketing campaign to improve sagging sales of Prowess cat food was working. Sales volume of the product had increased 20 percent in the past quarter compared with the previous year and market share was up. The improved sales of Prowess could be credited to Denise Washington, the brand manager responsible for cat foods at Nupath. Washington had joined Nupath less than two years ago as an assistant brand manager after leaving a similar job at a consumer products firm. She was one of the few women in marketing management at Nupath and had a promising career with the company. Ornath was pleased with Washington’s work and tried to let her know this in the annual performance reviews. He now had an excellent opportunity to reward her by offering the recently vacated position of market research coordinator. Although technically only a lateral research was not the route to top management in most organizations, Washington thought. She had been sidelined. After a long silence, Washington managed a weak â€Å"Than you Mr. Ornath.† She was too bewildered to protest. She wanted to collect her thoughts and reflect on what she had done wrong. Also, she did not know her boss well enough to be openly critical. Ornath recognized Washington’s surprise, which he naturally assumed was her positive response to hearing of this wonderful career opportunity. He, too, had been delighted several years earlier about his temporary transfer to marketing research to round out his marketing experience. â€Å"this move will be good for both you and Nupath,† said Ornath as he escorted Washington from his office. Washington had several tasks to complete that afternoon but was able to consider the day’s events that evening. She was one of the top women in brand management at Nupath and feared that she was being sidelined because the company didn’t want women in top management. Her previous employer had made it quite transfer with a modest salary increase, the marketing research coordinator job would give Washington broader experience in some high-profile work, which would enhance her career with Nupath. Few people were aware that Ornath’s own career had been boosted by working as marketing research coordinator at Nupath several years before. Denise Washington had also seen the latest sales figures on Prowess cat food and was expecting Ornath’s call to meet with her that morning. Oranth began the conversation by briefly mentioning the favorable sales figures, and then explained that he wanted Washington to take the marketing research coordinator job. Washington was shocked by the news. She enjoyed brand management and particularly the challenge involved with controlling a product that directly affected the company’s profitability. Marketing research coordinator was a technical support position—a â€Å"backroom† job—far removed from the company’s bottom-line activities. Marketing clear that women â€Å"couldn’t take the heat† in marketing management and tended to place women in technical support position after a brief term in lower brand management jobs. Obviously, Nupath was following the same game plan. Ornath’s comments that the coordinator job would be good for her was just a nice way of saying that Washington couldn’t go any further in brand management at Nupath. Washington was now faced with the difficult decision of confronting Ornath and trying to change Nupath’s sexist practices or submitting her resignation. Discussion Question : 1. What symptom(s) exist in this case to suggest that something has gone wrong? 2. Diagnose the underlying problems that have led to these symptoms. 3. What actions should the organization take to correct these problems?

Every Child Matters Act and the No Child Left Behind Act Essay Example for Free

Every Child Matters Act and the No Child Left Behind Act Essay Robinson 3rd hour Flanders A barrier for ensuring that all children in our community receive a high quality education would be the Every Child Matters Act and the No Child Left Behind Act. Ed. Gov states, â€Å"President Bush made a commitment to ensure that all children receive a high quality education so that no child is left behind. In just one year after the president first took office, the No Child Lefty behind Act (NCLB) passed overwhelmingly. No Child Left Behind has led to higher standards and greater accountability throughout the nation’s school systems. No Child Left Behind provides the schools with more funding, gives states and school districts more control and more flexibility to use resources where they are needed most, holds schools and school districts accountable for results, and may provide your child with free tutoring and extra help with school work. When it comes to improving education in our state I believe our priority is to improve teaching, make better finical investments in our education systems, and coming up with better way to get students more involved and excited to learn. I believe we need to look at how much we’ve already spent and what were using the money for and evaluate what we are receiving in return. Opening college doors to more high school students who don’t have the funds to pay for it themselves is also another way in improving education in our state, allowing more students to have the opportunity to receive a decent education. Offering more and specific work related classes that interest the student and offering high more challenging courses for the students as well. But its not just about what the state and community can do, but its also up to the parents. Parents and Guardians play a big part in helping improve our education systems. The role of parent and parental involvement in improving education in our state is being involved. Regardless of the family income or background students with involved parents are more likely to earn higher grades and test scores attend school regular basis. Students with involved parents tend to have better social skills, improved behavior, and graduate on time and attend college. Children who have parents who aren’t there to push and motivate them don’t make it quit far. Parental support is always needed and a big part of parental involvement. If your parent doesn’t care about your education or is involved regarding you education you’re going to feel as if it’s not so important. Parents can become more involved by talking to their child and the child’s teachers, making sure they know who is giving their child the education and to be sure the child is working to their best of their ability. Physical environment affect school climate and student achievement by depending on what goes on inside or outside of school of the school will the feelings expressed by students, teachers, staff and parents about school. If the child is placed into a negative environment outside of school there’s a big guarantee that it will be brought back into school by that child. There’s also a chance that other students may pick up vibes from another student rather its negative or positive. When the child is placed into a good positive environment outside of school more than likely he or she will feel more better about themselves and bring that attitude back into the school as well. A well disciplined environment, learning environment, social environment, and school-community relations all affect the schools climate and the achievements of the students who attend. When students have to travel outside their neighborhood to attend a great school their family looses time, money, and energy. To put your child in a school that is better than their neighborhood schools probably cost more and is a bit embarrassing to the community or area you reside in. You’re using more gas to provide your child transportation to attend this school. It also takes up more time to take and pick your child up from a school that’s more than 20 minutes away from where you live. Now with a lot of students coming from poorly educated schools to attend the good schools they are making the â€Å"good† public schools in that particular area look bad. Most Africa-American communities don’t care about attending school or getting a good education. Everyone wants to make it out on their own but it seems as if the younger generations don’t want to make the first step in receiving a good education. They don’t take getting a education as serious as they should. But not all African Americans in a community feel that way. I believe the African-American communities stand beside other communities in America with the problems in the system. I believe the African Americans stand beside other communities because most of them don’t care. From the looks of things I believe most African-Americans have the wrong mentality about school and life.

Concrete: Advantages And Disadvantages

Concrete: Advantages And Disadvantages In this era which we live in, there are more than 7 billion (1) people on Earth and its resources are limited and quickly depleting. As a response to this high demand and burden on the Earths precious goods, there has been a green movement. Governments and companies are implementing laws and constantly looking for ways to be more efficient and conserve whatever little we have at our disposal. In the light of all this innovative research and as university students studying environmental engineering, concrete evolution has sparked our interest. Concrete is very much a large part of the environment, being one of the most widely used materials in construction, concrete is virtually everywhere. Its high durability and versatility has made it superior to all other building materials however there are some downsides to concrete that has made it a threat to the environment, mainly the greenhouse gas emissions that come with making cement. The cement manufacturing industry is under increasing pressure to reduce these emissions due to the fact that it releases a lot of gases, namely carbon dioxide and nitrogen oxide. The real struggle is to find ways to produce a concrete that is environmentally safe, without losing the integrity of the concretes durability and reliability. In this paper, the making of concrete and its advantages and disadvantages will be discussed, alongside some different alternatives that have been implemented at present time to deal with energy efficiency and environmental security. Economic and social effects are also looked at and discussed. The main alternatives in focus are; the use of chemical admixtures, recycled concrete materials and fuel alternatives for the kiln. Kiln and Efficiency The most energy consuming part of the cement making process is the burning of the mixture of the constituent parts of cement within the kiln. A large amount of emissions is released by the fossil fuels used to heat the kiln up and the chemical reactions that take place within the kiln itself. A kiln is a thermally insulated chamber or oven, in which a controlled temperature is maintained and kilns used for making cement get to temperatures of about 1500 degrees Celsius (2). In order to get to these temperatures, large quantities of coal are burned to generate the energy needed for the kiln. Coal is the primary fuel burned in cement kilns, however, the use of alternative fuels in cement kilns is now common and increasing. This high energy consumption however leads to high carbon emissions, about 7% of the worlds total carbon emissions. Cement production is an energy-intensive process consuming thermal energy of the order of 3.3 GJ/tonne of clinker produced. Electrical energy consumption is about 90 120 kWh/tonne of cement.(3) These are the reasons why more efficient fuel alternatives are being investigated to firstly help improve the quality of air we breathe and secondly protect the earth from adverse conditions that come with too much carbon dioxide in the atmosphere. There are two types of kilns being put to use, one utilizing a wet process and the other dry. The wet process is the older method and involves a slurry mixture of water and the cement ingredients being transferred to the kiln. The wet process however uses a lot of energy and therefore the modern dry process is more commonly used. It uses the dry ingredients blended together and then transferred to the kiln, the only disadvantage it that a lot of dust is released. Both diagrams below will illustrate the the cement making process and more importantly the two different kinds of kilns. Material Science According to the Merriam-Webster dictionary, material science is the scientific study of the properties and applications of materials of construction or manufacture (as ceramics, metals, polymers, and composites).(5) The concise encyclopedia further explains how material science goes into how the properties of different materials depend on their composition such as atomic mass and electron configuration.(5) It also points out the importance of material science to engineers of all disciplines as they need to know as much as possible about different materials in order to come up with designs and fix problems in their respective fields. With a sound knowledge of materials and their properties, they can be manipulated in any way necessary to be an asset to us. In our case, understanding the chemical reactions that take place in concrete will help to understand why the methods chosen have been picked in the first place to help rectify any problems. From the manufacturing of the cement in the kiln to the demolition of concrete structures, knowing and understanding the reason behind different aspects surrounding the whole concrete process is very beneficial in finding alternatives to make it more environmentally safe and efficient. Alternative Fuels Fossil fuels, such as coal and natural gas, have been used as energy sources in the cement manufacturing industry for decades. In more recent years, these traditional fuel sources have become increasingly substituted with alternative fuels typically of waste sources such as municipal solid waste, scrap tires, waste wood, agricultural biomass, meat and bone meal, and petroleum coke. The list of candidate materials is continuously expanding and regulatory pressures, economic factors and the fact that we are running out of landfill space are all reasons why these alternative fuels are continuously sought for and studied. Alternative fuels used today in cement manufacturing and the different potential alternative fuels differ considerably from the traditional fuels, and the cement manufacturing industry is faced with several challenges in making the switch from traditional to alternative fuels. Some of these challenges include, inadequate heat distribution, blockages in the preheater cyclones, unstable precalciner function, higher SO2, NOx, and CO emissions, congestion in the kiln riser ducts and dusty kilns (6). Furthermore, due to the fact that the cement industry is strictly regulated by national and international legislation for environmental related issues, health and safety of practices, and the quality of cement produced, special approval is required for the use alternative fuel since they all different and can potentially introduce harmful environmental effects or affect the quality of the cement. The type of combustion implemented, which is determined by the type of fuel used can have a direc t affect on the composition and characteristics of the output product, and the function of the kiln as different manufacturing plants may differ in their design. A common practice in cement manufacture is the addition of the ash produced by the fuels, which are comprised of compounds containing silica and alumina, into the clinker (6). The composition of the fuel ash created by different fuels can determine in which proportions an alternative fuel can substitute a conventional fuel, for example some can yield silica rich fuel ash which can later reduce the amount of ground sand needed as a raw material to make cement. Moreover, the inclusion of constituents that can have a deleterious effect on concrete performance must be controlled, since this can happen even at very small concentrations. An example of this would be alkalis such as potassium oxide and sodium oxide, which can in the presence of moisture can cause reactions in concrete called ACR and ASR which can cause cracking in the structure. These alkalis can also react with SO3 to form alkali sulphates, which can affect the reactivity of the cement with aggregates, resulting in hardenin g problems (6). Therefore, the inclusion of alkalis from the kiln system should be minimized. In certain kilns that have preheaters, the use of alternative fuels can lead to the volatilization of certain molecules they introduce, which can lead to their subsequent recirculation in increasingly higher loads. Their recirculating can lead to their condensation in cooler areas, binding to circulating dust particles and can potentially cause blockages, thereby affecting the heat-exchange system. Some of these molecules are sodium oxide, potassium oxide, alkali sulphates, and chlorine, which not only are responsible for deposits, preheater blockages, and kiln rings but can also affect the quality of the cement produced if they are retained to some proportions(6). Petroleum coke or petcoke is a solid residue from the crude oil refineries. It is considered a low volatile fuel with a typical volatile content of 5-15 %. The fact that its volatile content is low means that it has a low reactivity / burning rate and therefore is not possible to burn 100% petcoke in kiln or precalciner without using other high volatile fuels along with it (6). Consequently, this alternative fuel requires finer grinding and is pushing new kiln designs into the market to allow for their complete burning. Another negative is the fact that it has a high sulphur and vanadium content. This can result in increasing the sulphur circulation in the kiln and precalciners and as mentioned before causing build-ups and blockages, and increasing sulphur dioxide emissions. Sulphur contamination of the cement can cause cracking and high vanadium content can cause reduce the strength of concrete (6). A 0.2 percent addition is reported to lead to a 10 percent reduction in 28-day stren gth of cement. However, due to low ash content of petcoke such high contents of vanadium in cement are unlikely (6). This is an attractive fuel as it has a high calorific content and relatively less expensive than coal and other fossil fuel conventionally used. Sewage Sludge is generated from wastewater treatment from industrial, residential, commercial, and institutional sources. Sewage sludge is usually disposed of by throwing it in the sea, its use as fertilizer, its incineration, or it is dumped in a landfill. Due to stricter environmental specifications associated with its disposal, the possible health and environmental risks in using it as a fertilizer and the increasing cost for its disposal in landfills, its use as an alternative fuel in cement manufacture is becoming more attractive. The organic components of the sludge are entirely destroyed when it is burned as fuel and the inorganic components and heavy metals are combined and included in the final product. The sulphur content of sludge is not greater than coal so it does not pose a major concern in comparison, and although it has higher nitrogen content the nitrogen oxide emissions are lower than when fossil fuels are burned (7). However, there are higher contents of volatile c ontent, ash, and low fixed carbon compared to coals. Sludge usually requires pretreatment before it can be used as a fuel and has to be burned in controlled conditions as with most alternative fuels. Using sludge is also attractive economically, as it resulted in an increase in return when used instead of fossil fuels, in spite of its lower energy content than coal and the fact that it needs to be stored in special silos in order to avoid contamination (7). Its storage and handling and reduction of water content are the most difficult part of its use as a fuel, however it is definitely a far better option than use of non-renewable resources since it is widely available and a nuisance to dispose of. The use of sludge as a fuel source cannot have much of a social impact other than perhaps peoples perception of it, some may regard it as a better option than incinerating sludge which forms poisonous by-products, while others may be bothered by its use in anything else. Scrap tires have become utilized as an alternative source of fuel for various parts of the developed world instead of fossil fuels in many industries including cement manufacture. When tires are burned the rubber is completely destroyed and the inorganic component and heavy metals are included in the cement product. Different cases present different conclusions about the emission of SO2 and NOx, which may suggest that it depends on the kiln system and the burning process implemented. However, two Portland Cement Association (PCA) reports (2008, 2009) found that nitrogen oxide, sulphur oxide, and particulate emissions were reduced when scrap tires substituted a portion of the conventional fuels (7). Heavy metal, dioxins and furan emissions showed different results in different studies however, again Portland Cement Association studies collected data from 31 cement plants that used tire as fuel and found a significant reduction in the emissions of dioxins and furans (7) . Some problems with tire derived fuel is incomplete combustion and zinc oxide present at concentrations that may be detrimental to the quality of the cement. Overall, the use of tires as fuel is an environmentally, and economically sound option compared to other end-of life alternatives of tires and the use of 100% fossil fuel. Tires have a higher energy content than coal and allow for savings in the purchase of coal. Another source of fuel being used is agricultural biomass, which includes all forms of biomass not included in the categories of meat and bone meal, or sewage sludge. Some common sources are rice and coffee bean husks, palm kernels, algae, and cottonseed oils. The use of agricultural biomass has been proven to be an effective way to reduce greenhouse gases and the dependency for fossil fuel (7). Furthermore, its been determined to have low SO2 emissions, low dioxin and furan emissions, and very low heavy metal emissions. Biomass in the form of waste from industrial or agricultural processes is less expensive than fossil fuels, and therefore its use would reduce operational costs. However, equipment specific to the processing of biomass may be needed and may incur additional costs. Also, supply seems to be a major concern, a continuous supply may be difficult to achieve. Socially it can be beneficial to some agricultural communities, allowing them to make an additional income from sel ling their agricultural by-products (7). Finally the last alternative fuel to be discussed is the meat and bone meal (MBM), a by-product of the rendering and food industries. Their co-incineration with fossil fuels in cement kiln systems has become a common way for their elimination. MBM has a lower fixed carbon and high ash content and high levels of phosphate, sodium, potassium, magnesium and chlorine (7). Due to the fact that chlorides can volatilize and condense at high temperatures in the kiln and can react with alkalis and sulphates to form compounds with low melting points, which can lead to their recirculation and condensation. As mentioned earlier this can can have harmful effects on the production process and cement produced . Consequently the MBM used as substituted fuel and the compounds introduced into the cement needs to be controlled and monitored. The sulphur content, on the other hand, is a little lower than can be found in coal, and the high calcium content in MBM can help retain most of the SO2 released f rom its combustion (7). The use of MBM in cement production reduces CO2 emissions, SO2 emissions, and introduces a safe and environmentally friendly way to disposing of them. And as with the previous alternative fuels mentioned, it reduces the demand for landfills and their associated environmental and health risks. In summary the cement kiln provides numerous advantages over other end-of life alternatives for much of these wastes. The high temperatures, oxygen rich environment, and adequate residence time provided by the kiln system allows for the complete destruction of the organic material. Also, aside from being able to process a wide range of waste materials, since the ash is incorporated into the final product there is no additional waste to manage from the use of these wastes. However, these alternative fuels are derived from selected waste streams and usually require some level of pretreatment, such as the shredding of tires, drying of sewage sludge and reducing its pathogen levels, etc. This is a extra investment of time and money that the cement manufacturers will need to take on as the pretreatment of these wastes is an integral part of their recovery and in most cases is taken care of externally by waste treatment experts or outside suppliers. Despite, these extra costs for the prepr ocessing of these wastes, the cement manufacturers are expected to make a larger return on this investment in comparison to the purchase of fossil fuels. Also, the use of these wastes as fuels would create a market for these them in neighboring communities, which will help reduce the number of operating landfills and put to use the calorific value in these wastes rather than have them wasted. The burning of carbon neutral wastes which include agricultural biomass, municipal waste, animal waste and paper waste are considered as GHG sinks since they would otherwise decay in landfills and form methane which is a more harmful GHG than CO2 (8). Other wastes that are derived from fossil fuels such as tires, are not carbon neutral, however burning them in cement kilns rather than incinerating them, which also induces GHG emissions, can result in significant CO2 reductions. Although the kiln emerging technologies and their capacities to process these fuels was not discussed, since it is too broad of a subject to cover and is not the main purpose of this paper, it is understood that some alterations to tradition kiln systems is required to adapt to the different combustion of these fuels. An example of these changes is features such as a multi-channel burner design and thermograph systems which allow for the control of the flame and optimize burning of different fuels (10). There are also different mathematical models, which look at which combination of alternative fuels in which proportions can produce optimal burning conditions (11). There has been much progress over the years in the substitution of fossil fuels in cement kilns, especially in the EU where substitution rates are much higher than in North America, however, there is much more work that needs to be done in the evolution of the cement industry towards greener and more sustainable practices. Advanced Chemical Admixtures Our society relies greatly on building materials, concrete being one of the oldest, and most important of those materials. Concrete is a combination of 60% to 75% aggregates and 25% to 40% paste. The paste is comprised of 7% to 15% cement, 4% to 8% of air content, and 14% to 21% water (15). Although paste only contribute less than 40% of concrete, the components greatly affects the overall quality. An example is with the reduction of water to cement ratio, and in turn increases the compressive and flexural strength, increases resistance to weathering reduces shrinkage and cracking, and lowers permeability. To achieve these characteristics in concrete, engineers came up with admixtures, an important ingredients used when the goals are to reduce the cost of concrete, maintaining the quality of concrete during the different stages of its production, basically to achieve desirable properties of concrete. Admixtures are classified under the following; Air-entraining mixtures, water reduci ng admixtures, plasticizers, accelerating admixtures, retarding admixtures, corrosion inhibitors, etc. Superplasticiser/High range water reduction is made up of synthetic polymers, which are admixtures that increase slump flow, essentially used for low to normal slump and water-cement ratio. The use of superplascticiser not only brings the water-cement ratio down, but it drastically increases the workability, as well as increasing the strength at an early stage up to 200% within 16 hrs (13) . A great example of a new and innovative plasticizing admixture is Glenium SKY. The third generation high range water reducer or superplasticizer also known as Glenium was introduced in the 1990s. Glenium is a polycarboxylic ether polymer, that attracts entrringite molecules, through a static electric charge. This entrringite provides a protective barrier around the surface of cement particle, which prevents hydration and crystallization. In September 2003 Glenium SKY (Synthesis of Key performance and Yield) was introduced. This new superplasticizer was developed for ready mixed concrete, concrete that contains high performance quality from the production to the usage. Unlike the other types of Glenium; Glenium 21 and Glenium 27 , Figure 1 Glenium SKY, new chemical monomers controls the rate in which the entrringite molecules cover the cement molecules. Therefore the cement molecules are not completely covered, which allows the crystallization to take place at a slower rate, and accelerated strength at an early stage without compromising the consistency. Glenium SKY was tested against Glenium 27, it is noticeable from the table below that Glenium needing less water and lower cement-water ratio, but still was a able to produce a more consistent slump and greater strength according to the test results in table 1. Within 90 min, the slump dropped only by 2 mm. The usage of Glenium SKY benefits socially, economically, and environmentally. With the increase in workability, decrease in water-cement ratio, and high early strength, allows the most optimum concrete design which in turns have a positive effect on the economical aspect The definition of sustainability means to meet the needs of the present generation without compromising the ability of the future generations to meet their need (15). Sustainability is achieved when these 3 factors are properly balanced, economy, social, and environmental. It is evident that the addition of the superplasticiser used in concrete mix designs will help to achieve environmental sustainability. The concrete industrys main goal is to produce a superior material with a positive impact to the environment. This super-plasticiser or high range water reducer will decrease the water-cemnet ratio, meaning less cement needed as well as water. Water usage can be reduced from 10% to over 30%. A 10% reduction is equivalent to 600 000 tonnes of water saved annually (14). Not only are the usage of water is reduced but also other environmental factors. Analyzing the effects of the super-plasticiser shows a generally positive effect on the environment. Figures 3 and 4, shows 2 concrete structures impact on the environment with the addition of super-plasticiser in relation with the structures without the admixture. For the flat Slab concrete, adding the super-plasticiser admixture decreases these negative impacts by a great margin. It is evident that the total energy requirement is reduced by 8%, the toxic impact on human health is reduced by 10 %, the acidifying pollutants is reduced by 8%, and the CO2 is reduced to almost 20%. However, using this admixture, there is an increase in chemical waste, the values have been normalized to 100% for the control, which means the increase of the non-hazardous chemical wastes will only increase by 1% (13). Overall for this cement mix the superplasticier admixture is beneficial because it decreases major negative impacts such as abiotic depletion and eootox sediment by 3% and another 3 categorie s by over 10%. The effect of the admixtures vary depending on the different type of mixes and their purpose. The concrete mix for a precast wall unit was also analyzed using these admixtures. Based on that analysis we can conclude that this admixture has the desired effect by decreasing the energy by 10% by volume of concrete. As with the previous concrete mix the superplasticiser has a greater impact on a number of impacts. While there is an increase in chemical waste by 10% by volume of control concrete the decrease in energy is of 20%. This outweighs the negative of this admixture. Overall the super-plasticiser admixture has a great effect on a number of impacts but also a negative impact on chemical waste. Figure 3 and 4 compare the strength with and without the admixture versus the energy and climate change. It is evident that the super-plasticiser are effective in reducing the CO2 emissions and the energy consumption. A cement mix with this superplasticiser admixture will have a positive overall effect and has very beneficial impact on the environment. The use of this super-plasticiser admixture in concrete mixes allows for social sustainability. As previously stated before, with the addition of this admixture, concrete mix can be made to have a higher strength. An increase in the strength of the concrete will result in a more durable material, and a longer life expectancy. With concrete having higher strength and a longer life, maintaining these structures will be reduced especially within major highways and roadways within a city. Traffic congestions greatly impacts our lives, career, and safety. By reducing the amount of traffic will allow a better quality of life. In central Ontario alone, there are 11 zones where major structures are being repaired and maintained. On the Queen Elizabeth Way (QEW) near Hamilton, a $7.3 million dollar contract has been approved for the structural rehabilitation (14). According to the traffic reports, the QEW Burlington Skyway Bridge, the Millen and Fifty Road structures and glover road will be u nder construction, which means a delay up to 30 minutes (14). The 30 minute construction delay with the addition of bottlenecked areas, and overcrowded vehicles can increase the delay to be even longer than 30 minutes. Lets say 30 minutes delay for construction, and because of a large amount of the population commute to the city of Toronto for work, another 10 minutes due to vehicles overcrowding the roads. We have a total of 40 minutes delay, and a total of 80 minutes delay a day, which comes up to 6400 minutes or 106.6 hours in traffic until this specific project is completed in 4 months. These delays will cause people to be late for work, school, or other commitments, which can lead to stress, and road safety. By producing an optimal concrete design using a super-plasticiser such as Glenium SKY, we can increase the strength and life expectancy of the structure, which will reduce traffic caused by maintenance and repair, and create a more socially sustainable environment. Reaching economic sustainability is just as important as social and environmental sustainability. With the increase in workability, decrease in water-cement ratio, and high early strength, allows the most optimum concrete design which in turns will help to achieve economical sustainability. The increase in workability allows proper installation into areas of low clearance, underwater placements, and areas where consolidating methods cannot be used. Which means savings on equipment, transportation, and time. When mix designing, with the addition of Glenium SKY admixture, the water-cement ratio is decreased, which results in a smaller amount of water and cement needed. Economically, this is a positive result, not only does it reduce the cost of the amount of cement needed it also reduces energy cost. According to the Ministry of Transportation, Ontario is increasing driver and vehicle fees in order to maintain bridges and roads. The price of maintenance has increased. Consequently this increases taxes and other fees. Using this admixture the amount of maintenance required can be reduced, with increase in tax will not be necessary. Recycled Concrete Concrete as one of the mostly used building materials when produced and transported creates a lot of CO2 and when disposed generates a huge amount of waste; therefore it causes a lot of concerns for environmental activists. In order to address these environmental issues, it is necessary to recycle the concrete when demolishing buildings built using concrete. Also reuse of this construction waste is important in terms of life Cycle Assessment that is the standard method of evaluating environmental impacts associated with different stage of products life, which includes recycling (22). There are 3 basic concepts to promote the proper reuse of the construction waste, (A) assurance of safety and quality, (B) decrease of environmental impact, and (C) increase of cost effectiveness of construction. In this paper we focus on some benefits of proper recycling of concrete for the environment. First, we are going to address some of the main environmental problems with concrete. Concrete production emits huge amount of CO2, which is the main issue of this industry that leads into global warming. Up to 8% of all the CO2 produced in the world comes from concrete production. Using recycled concrete can dramatically reduce the amount of emitted CO2 and fight against global warming. Nitrous oxide emission and other articulated air emissions on one hand, and on the other hand the traffic congestion caused by delivery of the ready concrete wastes a lot of energy and cause air pollution. Water pollution and adverse effects of concrete on health are among the other problems that make concrete recycling more essential. (19) In the past, the resulting concrete from demolishing the buildings was released in the environment which had enormous negative impacts. Conventionally recycling concrete has been considered as a difficult task, however recycling technology has been improved and now it has become a feasible technology. Recycling concrete has become a simple process that involves breaking the concrete pavements, removing them from the sites to the recycling machines that can be also installed near the construction sites and finally crushing the concrete into pieces that can vary in quality and size. (18) Furthermore, recycling technology has reached the stage that can prepare the recycled concrete to produce superior recycled aggregate for structural concrete. Recycled concrete has become one of the best construction materials as it is stronger than new concrete. There are only few restrictions on the type of concrete that can be used as recycled concrete aggregates (RCA) (20). Recycling now has become more common method of developing the waste produced by demolishing or renovating the structures made of concrete rather than transferring them by truck and leaving them in landfill. Environmental awareness and also the desire of contractors to keep construction costs as low as possible, has made concrete recycling an attractive proposal in any construction project involving concrete. Unlike most of the materials, such as, glass, bottles or metals that can be reused to produce the same material, once concrete has been made from cement, it cannot be decomposed to its initial component of sand, cement and water. However, Crushed concrete can be combined with virgin aggregate in producing concrete. (17) It is important to develop standardized guidelines to create new materials. These standards are needed for quality control of Recycled Concrete Aggregate (RCA), and the correct use of this recycled materials to produce new concrete. Recycling can reduce the amount of waste concrete that must be landfilled so it saves landfill space by keeping the waste concrete out of landfill. In addition, it reduces the need of virgin aggregates which help to cuts the negative environmental issues of extraction process. Recycled concrete can be used as gravel and it reduces the need for gravel mining. Another positive impact of recycling is the reduction of transportation requirements to transfer the new material to the construction sites, which in turn can reduce air and water pollution significantly and also decrease the greenhouse emission. One of the most important environmental advantages of concrete recycling rather than leaving the concrete in the landfill and buying the new material is to save up to 1,360 gallons water by recycling one ton of concrete. Using developed recycling system, to recycle the concrete waste produced from demolishing structures or roadways, can reduce t

Complementary: The Sacred and the Secular Essay -- Religion, Chinese I

Contrary to common belief, religion is composed of both religious—divine reverence, and irreligious elements—politics and philosophy. Reciprocally outlining Chinese ideals, this complementary blend of religious and irreligious elements allude to harmony of opposites without conflict. However, widely interpretative, the Western term â€Å"religion† prevents clear distinction between religion and philosophy when applied to Ancient Chinese religion, Confucianism, and Daoism. Though each equitably dissimilar, each sector influenced the upbringing of the other politically, while continuing to uphold similar purposes of perceived harmony. Therefore, this paper’s analysis of Ancient China’s concept of Ganying, Confucius’ concept of Social Hierarchy, and Daoist practice of internal and external alchemy reveals a progressive religious influence on State, and simultaneously deems philosophy as only an appurtenant to religion. During the Shang Dynasty, Ancient Chinese religion served as the premise to political structure and reign. The first divination process involving oracle bones, or tortoise shells and ox shoulder bones, introduced the idea of Shang diviners. This recognition of power paved way for the separation of social classes, resulting in the elite and popular class. The elite were considered literate and cultivated, comprising the upper class. In opposition, the popular class was that of the lower class, illuminating indigenous values. Exemplifying a religious connotation, prescriptively, the diviners’ chief role during the divination process prompted importance of ancestral worship and sacrifice. Illustrating the concept of ganying, diviners would attempt to provide ancestors with proper sacrifices to induce spiritual fulfillment—s... ...d with qi, jing, and shen, this alludes to the Daoist conservation of blood, semen, and breath. The practitioners preserve these humanly essences through meditation implemented with fasting and breathing techniques (305). These Daoist exercises later influenced and embellished the practice of taji, boxing, yoga, and sexual practices. From China’s most primitive state to its most culturally flourished, when describing Ancient Chinese religion, Confuscianism, and Daosim, individuals regard these practices as a â€Å"philosophy†, or â€Å"way of life†, instead of a religion (105). However, each equally embodies a perennial philosophy—different elucidations symbolize a single, universal truth. Therefore, if religion outlines both religious and irreligious aspects, and concurrently depicts a way of life, one can assert philosophy as an additional â€Å"interpretation† of religion.

Women In Western Society Essay -- essays research papers

WOMEN IN WESTERN SOCIETY Since the beginning of mankind women have been dominated by men. They were to obey and serve man. Their main role in society was to bear children, take care of the household and to be loyal and faithful to their husbands. They were to remain subjects to males. Many viewed women as slaves to man and that should be placed in a household where they belong because women could not perform the tasks of men. During the renaissance family played a crucial role for women. Parents, often to strengthen business and to tighten family bonds arranged many marriages. The male figure was the head of the family. He had authority over everyone. He was in charge and managed of all legal and finical problems. The woman managed only the household. Due to the arranged marriages, women had no emotional feelings for their husbands, which led to temptations. Women were sometimes killed for having an affair, where as men were aloud to have a mistress. Most women family life was their only destiny. Witchcraft affected the lives of many women during the 16th and 17th century. Lots of women were burned at the stake for being accused of being a witch. Most witchcraft trials women of the lower classes were most likely to be accused of witchcraft. But by the mid 17th century this witchcraft craze was starting to vanish. The Enlightenment questioned the role of women. For centuries men have dominated what the role of women should be. Many male writers believed that that women were lower intellectually value to men. But there were some philosophies, which showed some positive feed back for women. They argued that women were capable of all that men are. It was the woman thinkers who added new perspectives to the women question by suggesting better improvements for woman. Those thinkers believed that woman should be better educated. They should be able to learn what men are learning. A English writer Mary Wollstonecraft (1759-1797) was the fonder of modern European feminism. She began the women movement arguing the rights of women. She declared, that women should have equal rights with education and in economic and political life. During the French Revolution woman began to show that they weren't afraid anymore. After the Declaration of Rights of Man and citizen on August 26, 1789. Women started questioning themselves , do this rights include women. These law br... ...were women because men believed that women's natural role was to take care of children. There was still being paid lower salaries. In 1830, a number of women in United States and Europe worked together in several movements. They wanted more improvement for women. They wanted to secure divorce and property laws. Some women were able to get access to higher education. First they took over teaching them the medical field. This movement soon entered the political world. They believed women should have the right to vote. Only in a few countries and states the women won. Both Mussolini and Hitler believed that women should stay home and bear children. They both wanted women out of the work force. The women worked to hard to get where they are. No dictator would drive them out. They both failed. After World War 2 things started to change. Women made up lots of the work force. They occupied the same traditional jobs. But salaries still didn't change; they were being paid less then men. Many women still faced inequality. They still had to raise a family. They were many women protests after the war. After all the battles and protests women finally got what they deserved a right to vote.

Students from Rural Areas Often Find It Difficult to Access University Education

The higher education in remote area has been limited by the geographic condition. An argument that has been raised is that the university education should be accessable for students who live in remote areas. This argument is justified in my view, as outlined in the following paragraphs. The first point in support this is that having an equal opportunity on education is the basic human right for a resident. That is to say, nobody should be deprived the right to study at university due to the geographic disadvantage. Examples of this include the Australia which there is an clear law principle states that every resident ought to have the equal right to gain education. Which means the government has the obligation to solve the problem for rural area residents. The second matter to raise is that the local economy in remote area could be promoted if the residents could accept university education in a easier way . higher education usually allow the resident to have better skills and more employment opportunities. Through this, the local economy can be improved . In remote areas of Australia, there are farms which need qualified workers, agriculture professionals and managers to assist with running the farms. Thus, those professionals who has higher education could offer more valuable services and promote the overall economy. In summary ,I believe that making it easier for rural resident to access university education is not only an equal right for education, it is also the way of residents in remote area to attain the knowledge and promote local economy. Thus the improvement should be made to the condition of rural college education.

The Technique Of Anaesthesia Health And Social Care Essay

The anesthesiologist should choose the optimum technique for any given patient and process. The pick of anesthetic technique that patients receive depends on the nature and continuance of the surgical process being performed and patients ‘ physical and psychological wellness position. General anesthesia has several advantages ; facilitates complete control of the air passage, external respiration, and circulation. It allows executing a long lasting operation even at different parts of the organic structure at the same clip. It is besides the preferable method in instance of allergy/ sensitiveness to local anesthetics ( LA ) drugs used in regional anesthesia. However, there are some disadvantages to the usage of general anesthesia. Some grade of physiological alterations may happen. It besides needs some readying before surgery and requires complex and dearly-won machinery. There are some side effects and complications attached to general anesthesia. Although they are by and large uncommon in healthy people ; this frequently depends on several factors, including age of the patients ( greatest at the extremes of age ) [ 3 ] , or related to the ASA scaling of the patient ( higher in ASA IV-V ) [ 4, 5 ] . However, the Confidential Enquiry into Perioperative Deaths has shown that general anesthesia is a direct cause of mortality in merely 0.0007 % [ 6 ] . The commonest side effects associated with general anesthesia including postoperative sickness and emesis ( PONV ) , concern, sore pharynx, shuddering, itchiness, and urinary keeping. Intra-operative consciousness and external respiration troubles are uncommon side effects which occur in less than 1.5 -2 in 1000 anesthetics [ 7 ] . General anesthesia is besides doing serious complications such as anaphylaxis, myocardial infarction, malignant hyperthermy, sever encephalon hurt, and peripheral nervus harm ; although these complications are really rare and carry a hazard of less than 1 in 10,000 – 1 in 100,000 instances [ 7, 8 ] .Local anesthesiaLocal anesthesia is used to barricade hurting in a portion of the organic structure ( by cut downing axonal membrane permeableness to Na and temporarily barricading nervus conductivity ) ; this will blunt the integral tegument or mucous secretion membrane so patients will non experience hurting and any other esthesis ; it allows patients to stay to the full watchful. The process is normally of short continuance and anesthesia is performed by shooting, spraying, or topical application of local anesthetic drugs at, or near, the site of the process. Normally used local anesthetics include lidocaine, prilocaine and bupivacaine. These vary in their oncoming of action ( 0 – 5 min ) and continuance of the block ( 15 – 200 min ) . There are different types and signifiers of local anesthetics used, including injection ( infiltration anesthesia ) , spray and pick ( topical anesthesia ) . An illustration of this is local anesthetic used for dental intervention. Eutectic mixture of local anesthetics ( EMLA ) pick is a topical signifier of local anesthetics ( lidocaine + prilocaine ) . This is widely used to ease cutaneal processs ( e.g. Circumcision, venipuncture, arterial puncture, leg ulcers ) , particularly in kids [ 9, 10 ] . Although local anesthesia is non utile for supplying anesthesia for major operations ; it allows the public presentation of minor processs such as suturing a minor lesion. It could besides supply equal analgesia postoperatively by infiltration of the surgical lesion [ 11 ] . Other local anesthetics, such as cocaine, are used for topical anesthesia on mucose membranes. Patients may hold an allergic reaction to the local anesthetic used, which is normally rare ( less than 1:400,000 anesthetics ) [ 12 ] . Systemic toxicity ( CNS, cardiac toxicity ) may happen due to rapid systemic soaking up, or accidental injection of LA into circulation although it is by and large really rare [ 13 ] .Conscious sedationConscious sedation or endovenous sedation [ 14 ] has different attack to the construct of blunting the nervus or bring forthing a province of unconsciousness. This is normally chosen to loosen up patients and do them experience sleepy but remain awake plenty to retain the protective physiological reactions and communicate with the anesthesiologist. Specific hurting medicines are administered intravenously along with a ataractic drug to understate patients ‘ uncomfortableness. The latter drugs give another advantage of doing impermanent memory loss, so that patients may non retrieve what happens during the process [ 15 ] . This type of anesthesia is used, for illustration, for some diagnostic processs ( e.g. stomachic endoscopy ) .Regional anesthesiaRegional anesthesia is so named because a â€Å" part † of the organic structure, such as the upper limb or lower limb, is anesthetised without doing the individual unconscious. This involves injection of the local anesthetic stopping point to nervousnesss ( e.g. peripheral nervus block ) , or straight into the cardinal nervous system ( e.g. spinal block ) . The practical beginning of regional anesthesia was every bit early as 1884 by Halsted & A ; Hall ( USA ) , when they demonstrated successful anesthesia by intraneural injection of cocaine into centripetal nervousnesss ( supraocular, infraoribital, ulnar, and inferior dental consonant ) . Just one twelvemonth subsequently ( 1885 ) , accidently, Dr J. Leonard Corning ( USA ) has administered the first spinal anesthetic utilizing cocaine on a Canis familiaris. It was non until 1891, when Dr Quincke ( USA ) foremost demonstrated the feasibleness of needle interpolation through the dura ( spinal puncture ) , before it was foremost used successfully by Dr August K. G. Bier ( Germany ) in animate beings and so on himself in 1898. Epidural anesthesia was first described in 1885 by Corning utilizing caudal attack ; but a chiseled technique via lumber injection was non used until 1930s [ 16 ] . Few old ages subsequently, P Ansbro ( USA ) has foremost reported uninterrupted peripheral nervus bl ock ( CPNB ) [ 17 ] . He described a successful uninterrupted brachial rete block. This type of regional anesthesia was foremost introduced by the German sawbones August K. G. Bier in 1908 ; therefore the name, â€Å" Bier ‘s block † . Bier injected prilocaine into a antecedently exsanguinated limb. The block plants by the direct diffusion of the injected local anesthetic from the venas into the neighbouring nervousnesss. This block consequences in a complete anesthesia for the limb to be operated. Its usage is limited to below-elbow or below articulatio genus processs. Prilocaine is the drug of pick for Intravenous regional anesthesia, as it is the least toxic local anesthetic and has the largest curative index. The popularity of Bier ‘s block has increased more after debut of Lidocaine as a replacement for prilocaine. Prilocaine and Lidocaine were found to be of comparable in oncoming, continuance, quality of block, and safety [ 18 ] . The development in pharmacological and pharmacokinetics of local anesthetics used, and the promotion in the te chniques has led the Bier ‘s Block to go one of the most normally used regional anesthetic techniques [ 19-24 ] . This technique is frequently preferred for minor processs that last for less than 1 hr on the manus and forearm ( e.g. deletion of carpus ganglia, tendon grafting ) . Time bound of 1 hr is due to the uncomfortableness caused by the applied compression bandage on the operable limb, which is happening if the process lasted beyond 1 hr. Another restriction of this type of anesthesia is the deficiency of postoperative analgesia, as the block wears off shortly after the release of compression bandage. Systemic toxicity of local anesthetic ( CNS toxicity ) is the chief complication of this technique, although it is really rare ; chiefly due to an excessively loose compression bandages or to the failure of equipment ( inadvertent compression bandage deflation ) . This technique is simple, easy to larn and execute, and really safe if big doses of local anesthetics are avoided and careful monitoring of tourniquet force per unit area is ensured, along with immediate handiness of resuscitation equipments. In spinal anesthesia, a little sum of local anesthetic ( e.g. bupivacaine ) is injected into the cerebrospinal fluid ( CSF ) in subarachnoid infinite, at lumbar vertebral inter-space L3/L4 or L4/L5, and causes a loss of esthesis of the lower organic structure. The block is normally achieved in a few proceedingss and stopping points for a few hours. Spinal anesthesia provides first-class surgical anesthesia and it preferred technique for most patients as they stay awake during the operation, so they are able to speak, ask, and listen to music. It besides provides good analgesia in the few hours following surgery, fewer drugs used, higher satisfaction, and lower mortality rate ( in patients who had Caesarean subdivision ) [ 26, 27 ] . In extradural block, a big volume of local anesthetic is injected through a catheter placed in the extradural ( epidural ) infinite, merely before piercing the dura and come ining the subarachnoid infinite. The oncoming of action and the continuance of the resulted block of this technique are longer than that of spinal anesthesia. The extradural catheter is used to let a uninterrupted disposal of local anesthetic ( either, extract or exceed up boluses ) for postoperative analgesia for hours or even yearss. Peripheral nervus block ( PNB ) is one of the methods of regional anesthesia that is used to cut down hurting and let for surgical processs. PNB is a technique which can be used to barricade a specific country such as one pes, or one arm, by injection of the local anesthetic around the nervousnesss, doing the operable country feel asleep and so the patient feels no hurting. There are different techniques of PNB described for upper or lower limb surgery. Although CPNB has demonstrated its efficaciousness if right placed [ 32, 33 ] ; inaccurate arrangement of catheters and the attendant failure block or unequal analgesia were reported every bit high as 40 % [ 34, 35 ] . Confirmation of the catheter location is disputing. The usage of a stimulating catheter may better the truth and success of the technique [ 36 ] . However there was a contention about its effectivity [ 37 ] . In some Centres, anaesthetists no longer utilize or learn nerve stimulator techniques [ 38 ] . Ultrasound is besides non dependable to adequately visualize the catheter ; hence, this technique is normally used along with the nervus stimulator in CPNB [ 39 ] . There are some possible advantages of utilizing PNB over general anesthesia. The patient remains witting and is cognizant of what is traveling on around him. Air passages are maintained throughout the process with minimum hazard of aspiration of stomachic contents. Patients normally enjoy a drum sander recovery which requires less nursing attention. Regional anesthesia has besides been shown to supply first-class intra-operative anesthesia, and to cut down the strength and continuance of postoperative hurting for up to 18 hours. The usage of local anesthetic drugs in regional anesthesia techniques and avoiding opioid analgesia has shown an betterment in the quality of postoperative analgesia, clip to first analgesia and a decrease in side effects and complications. These advantages might be as a consequence of reduced dosage of opioids, non straight linked to the good consequence of regional anaesthesia/analgesia. Postoperative sickness and emesis ( PONV ) is common side consequence among patients holding surgery [ 41-43 ] . Generally, regional anesthesia is associated with a comparatively lower incidence of PONV as compared to general anesthesia [ 44, 45 ] . In peculiar, CPNB which has proved to cut down the incidence of hurting and PONV [ 46, 47 ] . However, today ‘s general anesthesia with the debut of new anesthetic agents ( e.g. propofol ) has besides reduced the hazard of PONV [ 42 ] . Regional anesthesia is frequently reserved for those with high hazard of holding PONV from general anesthesia, peculiarly with volatile agents [ 43 ] . A longer period of hurting alleviation can be achieved by adding some medicines to local anesthetics ( e.g. morphia or Fentanyl ) . Although this may lend, to some grade, in increasing the hazard of PONV and itchiness, these side effects were comparable in both techniques [ 29 ] . Intrathecal opioid has besides demonstrated a better quality of analgesia than systemic opioid analgesia [ 48 ] . Continuous extract of local anesthetics is now considered the gilded criterion for hurting alleviation in the postoperative period. It has demonstrated better analgesia than individual shooting PNB [ 49 ] or patient-controlled analgesia ( PCA ) [ 50 ] . Trouble alleviation can be provided utilizing CPNB for yearss or even hebdomads. Preemptive analgesia is another possible method for bettering hurting tonss. This involves establishing injection of local anesthetics around nervousnesss pre-operatively to cut down postoperative hurting [ 51 ] . Despite strong grounds of its efficaciousness in carnal theoretical accounts [ 52 ] , and some clinical surveies [ 53, 54 ] , there is still controversy environing the dependability and effectivity of this technique in clinical scenes [ 55-58 ] . Neuraxial anesthesia has demonstrated several possible advantages over general anesthesia. It has significantly reduced the continuance of operation, PONV, hazard of thrombo-embolic disease, the demand for blood transfusion, pneumonic complications ( e.g. atelectasis, infection ) . Neuraxial anesthesia allows for better postoperative hurting alleviation, which may cut down pneumonic complications ( e.g. pneumonic intercalation ) , allow early mobilization, and possibly shortening infirmary stay [ 40, 59 ] . Similarly, hurting alleviation provided by PNB, particularly with CPNB, allows for early mobilization which could finally cut down the incidence of thrombo-embolism disease ( DVT or pneumonic intercalation ) and joint stiffness, sleep perturbation, and improved patients ‘ satisfaction [ 60-62 ] . There is a small grounds in the literature to back up the good consequence of regional anesthesia on mortality and surgical results ( e.g. complications, continuance of surgery, and early ambulation ) . Leaden grounds suggests that regional anesthesia has the potency to better these results [ 59 ] . In general, intra-operative hazards of regional anesthesia are somewhat less than that of general anesthesia. However, hazards are highly low presents ( 1 in 100,000 deceases ) in both techniques [ 63 ] , due to the promotion of techniques, accomplishments and of all time bettering guidelines. Despite all the complications associated with regional anesthesia, peculiarly with neuroaxial blocks, the safety profile of these techniques is perchance higher than that of general anesthesia. Hawkins et Al [ 26 ] reported a steady decrease in mortality rate ( in patients who had Caesarean subdivision ) over old ages ( 1979 – 1990 ) , compared to that for general anesthetics which remains the same. Furthermore, the Royal College of Obstetricians and Gynaecologists has reported a important decrease in mortality from 9 in 1000,000 ( 1981 ) to 1.4 in 1000,000 ( 1999 ) [ 27 ] . However, there was deficient grounds to back up the usage of these techniques in cut downing the mortality rate in other types of surgery such as orthopedic [ 59 ] .Disadvantages of regional anesthesiaRegional anesthesia, similar to general anesthesia, needs some acquired accomplishments and the larning curve of regional anesthesia is well high. Epidural and spinal anesthesia are more hard to larn than som e techniques used in general anesthesia, such as tracheal cannulation or arterial line arrangement [ 64 ] . Novitiates normally achieve an betterment after 20 – 25 spinal or extradural processs ; nevertheless, competence ( defined as success rate of a†°? 90 % ) is normally reached with a lower limit of 45 – 90 processs. In contrast, competence in peripheral nervus block was reached in about 62 – 70 efforts [ 65 ] . In comparing to other anesthetic accomplishments, cannulation and arterial line arrangement larning curve reached competence after an norm of 57 and 60 efforts, severally [ 64, 65 ] . Sites et al [ 66 ] demonstrated that novitiates can quickly get the hang the basic ultrasound accomplishments required for successful fake interventional processs. This has shown an betterment in truth, up to 59 % after merely 3 tests. Clinically, and utilizing ultrasound counsel, a success rate of 93.6 % was demonstrated after 66 peripheral nervus blocks [ 67 ] , and 94 % after merely 60 extradural punctures [ 68 ] . For assorted grounds, regional anesthesia may non be plenty to transport out the surgical process and it may necessitate some deliverance analgesia, sedation or even transition to general anesthesia. Another disadvantage is a delayed oncoming of action ( which may take up to 20 – 30 proceedingss ) to be wholly sufficient to execute the surgery. Regional anesthesia is besides non suited for some operation such as cardiac surgery.Complications in regional anesthesiaThere are several side effects and complications that are common to all types of regional anesthesia and some specific to each technique. Most of the complications of regional anesthesia are comparatively minor and easy managed [ 69 ] . However, some serious complications still may happen but at really low rate. The approximative incidence of these major complications is between 0.2 – 5 in 10,000 ( in grownups ) [ 70 ] . This is lower in pediatric and obstetric population ( & lt ; 0.1 in 10.000 ) [ 71, 72 ] . Complications are chiefly related to cardinal techniques ( spinal and extradural ) ; for illustration, spinal cord harm ( due to direct injury or equipment failure, haematoma and infection ) , and systemic toxicity ( due to inadvertent endovenous injection of local anesthetic drugs ) . If these occur, results are normally hapless, and intervention of complications is supportive [ 73 ] . Temporary nervus hurt in regional anesthesia occurs in less than 1 % of all instances ; about all patients make a full recovery within 6 hebdomads. Permanent nerve hurt is a really rare complication and it occurs in 1 in 10,000 instances. Other side effects associated with regional anesthesia including PONV, bruises, concern ( relates to goad design and gage size ) , hypotension ( due to peripheral vasodilatation ) , urinary keeping, itchiness and back hurting. These are common man in cardinal techniques of regional anesthesia ( particularly spinal anesthesia ) [ 70, 74-76 ] . Infection following regional anesthetic techniques is really rare. However, certain patients with co-morbidities ( e.g. HIV patients, on corticosteroid intervention ) may hold a higher hazard of infection than otherwise healthy patients. The hazard of infection in regional anesthesia can be greatly minimised by following rigorous sterile safeguards during the public presentation of the block. The hazard of systemic toxicity is somewhat higher in extradural anesthesias due to the big volume of local anesthetic used. Other terrible and rare complications might besides happen such as extradural abscess or haematoma, meningitis, neurologic hurt, cardiac apprehension, with incidence less than 1 in 10,000 instances [ 25, 77, 78 ] . Failure rate is considered as one of the commonest complications of regional anesthesia. The overall failure rate of regional anesthesia is about 1 – 5 % [ 70 ] . In PNB, unequal block with attendant unequal analgesia is history for 1 in 100 instances. The rate of transition to general anesthesia of spinal/ extradural anesthesia is somewhat lower ( 1.3 – 4.9 % ) than PNB ( 1 – 10 % ) [ 79-82 ] , possibly due to the acquaintance of anesthesiologists and the short acquisition curve of cardinal neuraxial techniques. Several factors are responsible for block failure, including clinicians ‘ accomplishments, handiness and easiness of usage of equipment and devices, and other factors related to the patients ( e.g. age, ASA position, weight, anxiousness ) . Ultimately, block failure means transition to general anesthesia or proroguing the operation. That is why anesthesiologists should non execute regional anesthesia unless the operating theater is to the full equi pped and staffed to execute general anesthesia when this happened. As mentioned, handiness and the easiness of usage of instruments ( e.g. nervus stimulator, ultrasound ) are of import factors determined the success of the block. These instruments, if failing ( e.g. malfunction, dislocation, needle design ) , will take to some complications. For illustration, systemic toxicity due to displacement of LA-infusing catheter into blood watercourse or subarachnoid infinite, hapless images utilizing ultrasound leads to steel harm or block failure, or concern when utilizing cutting spinal acerate leafs.Methods of nervus localization of functionSurface landmarksThis technique of nervus localization of function depends on the surface anatomic landmarks for supplying regional anesthesia. This blind technique is normally hard and clip consuming. Inaccurate needle arrangement normally consequences in high rate of block failure ( up to 15 % ) [ 83 ] . It is besides associated with high per centum of complications ( e.g. nerve hurt [ 84, 85 ] , vascular puncture [ 86 ] , pneumothorax [ 87 ] , and systemic toxicity [ 88 ] ) . Multiple needle interpolation and the long clip required to happen the nervus and infix the acerate leaf can be painful to the patient, and may increase anxiousness.Nerve stimulationPuting acerate leafs and catheters in propinquity to peripheral nervousnesss involves a stimulating acerate leaf or weaving a catheter through a stimulating acerate leaf following successful nerve stimulation [ 31 ] . This is the chief construct of nerve stimulation technique used in regional anesthesia or supplying analgesia. Nerve stimulation technique was the gilded criterion for peripheral nervus block, and it was described as an effectual and safe technique for needle counsel in regional anesthesia [ 89-91 ] . This method relies on anatomical landmarks to steer the acerate leaf or the catheter near to the targeted nervus. This technique is effectual when the anesthesiologist is decently trained [ 92, 93 ] . However, it is non possible to corroborate the concluding location of the needle tip and the catheter with regard to the targeted nervus. The form of local anesthetic solution spread is besides hard to measure. The nerve stimulation technique is frequently hard due to anatomical variableness and the deeper location of the nervus [ 94 ] . As a consequence, a assortment of possible complications might happen ( e.g. lasting harm to the nervus or nearby constructions ) . Systemic toxicity ( due to intravascular injection of local anesthetic ) may besides happen. In add-on, failure rate of this technique is around 5-20 % [ 95-97 ] . This technique is besides associated with patients ‘ uncomfortableness during the process because of the increased figure of needle base on ballss. This technique is non utile in surgery affecting kids.UltrasoundMeasuring the place of inserted acerate leafs and threade d catheters utilizing ultrasound is important in increasing success rate and cut downing complications. Therefore, understanding of how to utilize this public-service corporation is really of import. With this image-guided technique, the designation of surface landmarks is even going less of import. 2D ultrasound-guided needle interpolation or catheter arrangement allows direct visual image of the acerate leafs and the catheters during their arrangement in a close propinquity to the nervus, which may increase the safety and effectivity of the block, particularly with blocks affecting superficial nervousnesss. In catheter arrangement, this may besides cut down the demand for x-ray imagination to corroborate its location [ 98 ] . Central neuraxial blocks appear to be hard to execute under ultrasound counsel [ 99 ] , chiefly due to the deepness of constructions and dominating by castanetss. The figure of users of this technique among anesthesiologists is turning, chiefly due to the direct visual image of the progressing acerate leaf or catheter and the nervus. However, real-time ultrasound visual image of acerate leafs and catheters is still suboptimal with the current ultrasound imagination engineering, particularly for visualizing perineural catheters. This is attributed to several factors, including hapless image declaration, unequal preparation. Three/ four dimensional ( 3D/4D ) ultrasound is besides used for needle interpolation and catheter arrangement in PNB [ 100-103 ] . In literature, this engineering is still in its early phases and informations available do non back up its usage in PNB. The chief issues in the limited usage of this engineering are including the strangeness of the practicians with this fresh engineering, complexness, and the high cost of the machines.Central venous entree in regional anesthesiaCentral venous catheter ( CVC ) canulation is one of the indispensable elements of the health care provided to surgical patients. It has been estimated that about 200,000 cardinal venous canulation processs are performed every twelvemonth in the NHS [ 104 ] , and more than 5 1000000s in the United States [ 105 ] . CVC arrangement is normally performed in different fortes ( e.g. anesthesia, intensive attention, surgery, exigency medical specialty, and hemodialysis ) . These catheters are placed for several indicants, normally as a vascular entree for giving fluids to supplement any hapless peripheral venous entree, administrating drugs for prolonged periods ( e.g. entire parental nutrition, chemotherapy ) , repeated sampling, cardinal venous force per unit area monitoring, cardiac and pneumonic arteria catheterization, and cardiac tempo. Normally cannulated venas are internal and external jugular venas, subclavian, femoral, and antecubital venas. For each vena there is a specific technique and attack for canulation. Seldinger technique ( Catheter over guidewire ) is the preferable method for canulation in most venas. Other techniques of catheter arrangement are catheter over the needle ( easiest and fastest methods of interpolation ) and catheter through the needle ( least common due to high hazard of intercalation ) .