Debate on School Uniform Essay Example for Free

Debate on School Uniform Essay Today we are seeing that the younger generations are becoming more preoccupied with fitting into the latest fashion trends. School administrations have noticed that dress code violations could be an attribute to the lack of performance in the classrooms. Public schools across America are searching for answers to enhance a better learning environment for the students. Taking all this into consideration, school uniforms would be a great idea to alleviate some of the negativity kids face due to societies apparel obsessions. In addition to what has been mentioned, studies have shown positive results with the use of public school uniforms. If it means that the schoolrooms will be more orderly, more disciplined, Mr. Clinton said, and that our young people will learn to evaluate themselves by what they are on the inside instead of what theyre wearing on the outside, then our public schools should be able to require their students to wear school uniforms (Mitchell, 1996). I believe a requirement of school uniforms should be implemented in all public elementary and middle schools. Read more: Should uniforms be mandatory essay In the name of putting â€Å"discipline and learning back in our schools† President Clinton instructed the Federal Education Department today to distribute manuals to the nation’s sixteen thousand school districts advising them how they can legally enforce a school uniform policy. If it means that the schoolrooms will be more orderly, more disciplined,† Mr. Clinton said, â€Å"and that our young people will learn to evaluate themselves by what they are on the inside instead of what they’re wearing on the outside, then our public schools should be able to require their students to wear school uniforms† (Mitchell, 1996). â€Å"It’s a fashion trend that’s spreading from Los Angeles to Louisiana, from Maryland to Miami, public schools are discussing, and in many cases adopting, the old private school idea. School uniforms are designed to help kids focus on algebra instead of high-tops; to make students compete for grades rather than jackets (www. pbs. org). In 1987, the first public school Cherry Hill Elementary in Baltimore, MD instituted a school uniform policy. Later in 1994, the Long Beach Unified School District in California adopted a mandatory uniform policy in some of its schools, making it the first urban district to do so. Before long there was a considerable increase in the use of uniform. For example, ninety-five percent of New Orleans’ public schools require uniforms, eighty-five percent of Cleveland, eighty percent of Chicago, sixty-five percent of Boston, sixty percent of Miami, and fifty percent of Cincinnati’s public School changed to uniforms (www. education. org). New York City, which is the largest school district in the US, has adopted the school uniform policy. The largest school district in the U. S. has adopted school uniforms. Over a half-million elementary-school students in New York City will have to adhere to a dress code by the fall of 1999. The president of the school board said the policy is â€Å"important to diminish peer pressure and promote school pride,† but that it’s not â€Å"an act of magic to transform schools overnight†¦ It isn’t going to replace a good teaching, good principals, and small classrooms. †(www. pbs. org). The National Association of Elementary School Principals (NAESP) conducted a phone survey of seven hundred and fifty five principals in 2000, which revealed that twenty one percent of all public schools had a uniform policy (www. education. org). Another reason that schools have decided to conform to uniform policy is because some students arrive at school in T-shirts that bear slogans or graphics promoting drugs and alcohol, or that display a variety of messages that conflict with values the schools are trying to promote. Others may swagger around the halls in gang-related garb. Also, others may show up in sexually provocative clothing. These issues, as well as a desire to minimize socioeconomic tensions between the â€Å"haves† and â€Å"have not’s†, have spurred some schools to adopt more stringent dress codes or to require students to wear uniforms. As the Department of Education’s Manual on School Uniform notes, â€Å"Uniforms by themselves cannot solve all of the problems of school discipline, but they can be one positive contributing factor to discipline and safety† (Lumsden, Miller, 2002). Some authors contend that uniforms lessen emphasis on fashion, reduce the financial burden of low-income families, and promote peer acceptance, school pride, and learning. In a ten-state survey of elementary and middle school principals conducted two years ago by the National Association of Elementary School Principals and the clothing company Lands’ End, eleven percent of respondents said that their schools mandate uniforms, and another fifteen percent were considering such a policy. Others recent survey indicated that support for uniforms are growing among parents as well. In one survey, fifty-six percent of parents said they would support a school uniform policy (Lumsden, Miller, 2002). School uniforms also take the pressure off students to pay top dollar for clothes, according to Reginald Wilson, a senior scholar at the American Council on Education in Washington, D. C. I think it does lower the cost of clothes, and kids dont emphasize clothes as much when theyre all wearing the same thing, Wilson said. Certainly the competition to wear the best shoes or the best sweaters and so forth has been prevalent in school ever since I was in school, and the poor kids felt inferior (www. pbs. org). Deborah L. Elder wrote about an evaluation of school uniform policy at John Adams and Truman Middle Schools for Albuquerque public schools. In the beginning in the fall of 1998 under a policy started by parent’s students at John Adams and Truman Middle Schools in Albuquerque were required to wear tuck-in polo shirts and khaki pants or skirts. Elder reports on an evaluation of this policy that used interviews, focus groups, and surveys, along with data on discipline referrals and numbers of students achieving honor-roll status. During the first semester of the 1998-1999 school year, both schools experienced a clear improvement in student conduct from the previous year. At John Adams Middle School, discipline referrals fell from one thousand five hundred and sixty-five during the first semester of the previous year to four hundred and five. At Truman, referrals dropped from one thousand one hundred and thirty-nine to eight hundred and fifty. Students, teachers, and parents stated in interviews â€Å"uniforms place all students on an equal level,† Elder writes, â€Å"Students who may be immediately labeled by peers and staff no longer stand out. † Survey data showed that seventy-five percent of parents and eighty-nine percent of staff supported uniforms and believed they decreased violence, theft, and gang activity, Although only fifteen percent of students supported uniforms, fifty-nine percent agreed that â€Å"school uniforms help school officials identify trespassers on campus. † Concerns about school violence have led to increased interest in and acceptance of uniform policies. In the wake of school shootings, communities and schools are much more willing to embrace uniforms as well as a number of other strategies to enhance student safety. Curbing gang-related violence was the primary goal of the Long Beach (CA) Unified School District when, in 1994, it began requiring students in all its elementary and middle schools to wear uniforms, In the Dysart Unified School District outside Phoenix, Arizona, eliminating some of the stigma associated with clothes was the main motivation behind the adoption of uniforms. Even before the recent series of school shootings, a survey of principals conducted by the National Association of Secondary School Principals found strong support for uniforms. In addition to having a sense that uniform may aid in violence prevention, many administrators believe that uniforms will reduce discipline referrals, while improving attendance, achievement, self-esteem, and school climate. A study of middle school students in the Charleston (SC) School District fount that school uniforms did appear to alter students’ perceptions of school climate. Students attending district schools that required uniforms viewed their school climates more positively than did students enrolled in schools where uniforms were not mandatory. Additional benefits credited to school uniforms include improved discipline, increased respect for teachers, increased school attendance, fewer distractions, improved academic performance, increased self-esteem and confidence, lower overall clothing costs, promotion of group spirit, reduction in social stratification and fashion statements, improved classroom behavior, lower rates of school crime and violence, and easy identification of nonstudents (Lumsden, 2001). Many opponents believe that dictating what students wear to school violates their constitutional right to freedom of expression (Lumsden,Miller, 2002). People oppose uniforms point to unnecessary violations of students First Amendment rights, authoritarian regimentation, extraordinary expenditures on special clothing, an environmental tone that is harmful to education and learning, and cosmetic solution to deeper societal problems. Students First Amendment right to freedom of expression, and whether it is being abridged, is one of the fundamental issues raised, Several legal challenges have asserted that students freedom to select what to wear to school is a form of self-expression that schools are not entitled to interfere with (Lumsden, 2001). In a recent case, Littlefield v. Forney, parents challenged a school uniform policy adopted by the Forney, Texas school board. The policy required students to wear polo shirts, oxford shirts, or blouses in any of four specified solid colors, with blue or khaki pants, shorts, skirts, or jumpers. Denim, leather, suede, vinyl, and spandex were off-limits, as were baggy clothes and specific types of shoes. The parents claimed that the district’s policy violated â€Å"the right of parents to control the upbringing and education of their own children. † The plaintiff also argued that the policy interfered with students’ freedom of expression and forced them to express ideas with which they might disagree. In addition, they also declared that the procedures for opting out of the policy violated their religious freedom by allowing school officials to assess the sincerity of people’s religious belief. The federal district court dismissed the suit without a trial, but the plaintiffs then appealed to the 5th Circuit Court, where the ruling of the lower court was upheld. In its decision, the 5th Circuit Court indicated that students’ free-speech right to select their own clothes is â€Å"not absolute,† and that this right must be balanced against a school board’s stated interests in adopting a dress code or uniform policy. To decide whether a specific uniform or dress code policy is permissible under the Constitution’s free-speech clause, the court used a four-pronged test it had previously applied in another school uniform case, Canady v. Bossier Parish School Board. The court looked at four criteria: the school board must have the power to make a policy, the policy must promote a substantial interest of the board, the adoption of the policy must not be an attempt to censor student expression, and the policy’s â€Å"incidental† restrictions on student expression must not be greater than necessary to promote the board’s interest. In this case, the 5th Circuit found that all four criteria were satisfied and that the district’s school uniform policy therefore did not violate students’ right to free expression. The court also ruled that parents’ rights to control their children’s upbringing, including their education, cannot override school rules that are considered â€Å"reasonable† to maintain an appropriate educational environment. In this case, the court concluded that the uniform policy was â€Å"rationally related† to the interests of the school board in â€Å"promoting education, improving student safety, increasing attendance, decreasing dropout rates, and reducing socioeconomic tensions among students. † The parents’ argument that the opt-out procedure violated religious freedom because if gave school officials the authority to judge the sincerity and content of families’ religious beliefs was also rejected by the court. Their decision was based on the policy not containing any religious goals; they did not have the effect of advancing or hindering any particular faith over any other; and did not excessively â€Å"entangle† school officials in religious beliefs (Lumsden, and Miller, 2002). Public schools that have already put uniform into place have seen improvement. Kids are less focus on what they are wearing, and more focus on schoolwork. Kids are not focused on what they should wear the next day for school and you won’t have kids up early looking for clothes to wear to school. Elementary and Middle Schools will see significant change once uniforms are put into place. School uniforms are a great way to preserve the level of social equality amongst the students. The thought of knowing the social background is prevented. It makes kids treat each other equally; not judging by what clothes they wear. Students will learn to respect each other on the foundation of how they get along and not how sexy they look. Humiliating or bullying other kids will decrease or stop altogether. The level of distraction is considerably reduced. Since students will be dressing in similar clothing, which will be distinctive to the school, the students will build up a sense of belonging and loyalty to the school. School uniforms will help avoid incidents of complicated situations (inferiority and superiority). Students will not be known by what they wear, but by how they perform. Kids can build team spirit. When you wear specific colors, a sense of unity can be developed. Similar clothing promotes team spirit. School uniforms encourage a sense of ownership and discipline. Therefore, I strongly believe school uniforms should be a requirement for public school students in the elementary and middle schools. Overall, implementing school uniform in elementary and middle public school will be beneficial, as I have mentioned above. Kids may not be happy about it at first, but they will eventually catch on. I personally work with middle school kids who go to public school and wear uniforms. They did not like it at first, but what they all agree on is how they don’t have to decide on what to wear. References Lumsden, Linda and Gabriel Miller. Dress Codes and Uniforms. 2002. National Association of Elementary School Principals, Alexandria, VA. 19 6 2012 . Lumsden, Linda. Uniforms and Dress-Code Policies. Eugene, May 2001. Mitchell, Alison. New York Times: Clinton Will Advise Schools on Uniforms. 25 February 1996. 23 June 2012 . Public School Uniform Statistics. 2012. 19 6 2012 . School Uniforms. 21 6 2012 .

Biosensors or enzyme electrodes

Biosensors or enzyme electrodes INTRODUCTION OF BIOSENSORS:- Biosensors or enzyme electrodes invariably refer to such devices that sence and analyze biological informations. A biosensor is a device that detects, records, and transmits information regarding a physiological change or the presence of various chemical or biological materials in the environment. More technically, a biosensor is a probe that integrates a biological component, such as a whole bacterium or a biological product (e.g., an enzyme or antibody) with an electronic component to yield a measurable signal. Biosensors, which come in a large variety of sizes and shapes, are used to monitor changes in environmental conditions. They can detect and measure concentrations of specific bacteria or hazardous chemicals; they can measure acidity levels (pH). In short, biosensors can use bacteria and detect them, too. PRINCIPALS OF BIOSENSORS:- A biosensor essentially comprise of the following two major parts 1- Biological component- For sensing the presence as well as concentration of analyte. In the presence of a certain molecule the biological system changes the environment. The measuring device sensitive to this change sends a signal. This signal can be converted into the measurement parameter. Often the biological system is an actual cell. The key thing to remember is that it is an actual organism that detects the concentration change of the molecule in the media. This organism could be the same one as the one in the media or it could be different. In either case it must be kept separate from the media. This can be done with a membrane that is permeable to the molecule that is being measured but impermeable to the cells and most other macromolecules in the reactor media. 2- Physical component:- Transducer:- A device that converts energy from one form into another e.g., telephone companies use transducers to convert sound energy into electrical energy to be carried long- distance through telephone lines and then another transducer at the receiving end to convert the electrical energy back into sound A biosensor is a sensing device that consists of a biological component coupled to a transducer that converts biochemical activity into, most commonly, electrical energy. Types of Biosensors:- There are different types of biosensors, which have different applications. These are listed below. Calorimetric biosensor Potentiometric biosensor Amperometric biosensors Optical biosensor Acoustic wave biosensors Calorimetric biosensor:- When the physical change is heat, released or absorbed by the reaction it is calorimetric biosensor. It measures the change in temperature in the solution containing analyte Separate thermistors measure the temperature of the solution before entry into the small packed bed column containing immobilized enzyme and also at the time of leaving the column. Calorimetric biosensors are most widely applicable and can be used to measure turbid and strongly coloured solutions. Maintenance of constant sample temperature is the disadvantage of this type. At the transducer surface, an electrical potential is produced due to changed distribution of electrons and this type of biosensors are called potentiometric biosensors. They use ion sensitive electrodes, commonly pH meter glass electrodes for cations, glass pH electrodes coated with a gas-selective membrane for CO2, NH3 or H2S or solid-state electrodes. These electrodes convert the biological reaction into electric signal. Potentiometric Biosensors At the transducer surface, an electrical potential is produced due to changed distribution of electrons and this type of biosensors are called potentiometric biosensors. They use ion sensitive electrodes, commonly pH meter glass electrodes for cations, glass pH electrodes coated with a gas-selective membrane for CO2, NH3 or H2S or solid-state electrodes. These electrodes convert the biological reaction into electric signal. Amperometric biosensors Amperometric biosensors sense the movement of electrons due to redox reactions. The simplest amperometric biosensors are Clark oxygen electrode that function by the production of a current when a potential is applied between two electrodes. The magnitude of current produced is proportional to the substrate concentration. Light, produced or absorbed during a reaction, is measure, by the optical biosensors in terms of change in fluorescence or absorbance caused by the products generated by catalytic reactions. This type of change occurs in catalytic biosensors. In affinity biosensors, change in the intrinsic optical properties of the biosensor surface due to loading of dielectric molecules like protein on it, is measured. A most promising optical biosensor utilizes luminescence due to firefly luciferase for detection of bacteria in food or clinical samples. The bacteria are specifically lysed to release ATP. This ATP is used by luciferase in the presence of O2 to produce light, which is measured by the biosensor. Optical Biosensor A most promising optical biosensor utilizes luminescence due to firefly luciferase for detection of bacteria in food or clinical samples. The bacteria are specifically lysed to release ATP. This ATP is used by luciferase in the presence of O2 to produce light, which is measured by the biosensor. Acoustic wave biosensors Acoustic wave biosensors sense the change in mass of the biological components as a result of the reaction. They are also called piezoelectric devices. The surface of the transducer is usually coated with antibodies which bind to the complementary antigen present in the sample solution. The resulting increase in mass reduces their frequency of vibration. This change in frequency is measured in terms of antigen present in the sample solution. Applications of Biosensor:- 1. Health Care Measurement of Metabolites The initial impetus for advancing sensor technology came from health care area, where it is now generally recognized that measurements of blood gases, ions and metabolites are often essential and allow a better estimation of the metabolic state of a patient. In intensive care units for example, patients frequently show rapid variations in biochemical levels that require an urgent remedial action. Also, in less severe patient handling, more successful treatment can be achieved by obtaining instant assays. At present, the list of the most commonly required instant analyses is not extensive. In practice, these assays are performed by analytical laboratories, where discrete samples are analyzed, frequently using the more traditional analytical techniques. Market Potential. There is an increasing demand for inexpensive and reliable sensors to allow not only routine monitoring in the central or satellite laboratory, but also analysis with greater patient contact, such as in the hospital ward, emergency rooms, and operating rooms. Ultimately, patients themselves should be able to use biosensors in the monitoring and control of some treatable condition, such as diabetes. It is probably true to say that the major biosensor market may be found where an immediate assay is required. If the cost of laboratory maintenance are counted with the direct analytical costs, then low-cost biosensor devices can be desirable in the whole spectrum of analytical applications from hospital to home. Diabetes. The classic and most widely explored example of closed-loop drugcontrol is probably to be found in the development of an artificial pancreas. Diabetic patients have a relative or absolute lack of insulin, a polypeptide hormone produced by the beta-cells of the pancreas, which is essential to the metabolism of a number of carbon sources. This deficiency causes various metabolic abnormalities, including higher than normal blood glucose levels. For such patients, insulin must be supplied externally. This has usually been achieved by subcutaneous injection, but fine control is difficult and hyperglycaemia cannot be totally avoided, or even hypoglycaemia is sometimes induced, causing impaired consciousness and the serious long-term complications to tissue associated with this intermittent low glucose condition. Insulin Therapy. Better methods for the treatment of insulin-dependent diabetes havebeen sought and infusion systems for continuous insulin delivery have been developed. However, regardless of the method of insulin therapy, its induction must be made in response to information on the current blood glucose levels in the patient. Three schemes are possible (Fig. 1.6), the first two dependent on discrete manual glucose measurement and the third a closed-loop system, where insulin delivery is controlled by the output of a glucose sensor which is integrated with the insulin infuser. In the former case, glucose has been estimated on finger-prick blood samples with a colorimetric test strip or more recently with an amperometric pen-size biosensor device by the patient themselves. Obviously these diagnostic kits must be easily portable, very simple to use and require the minimum of expert interpretation. However, even with the ability to monitor current glucose levels, intensive conventional insulin therapy requires multiple daily injections and is unable to anticipate future states between each application, where diet and exercise may require modification of the insulin dose. For example, it was shown that administration of glucose by subcutaneous injection, 60 min before a meal provides the best glucose/insulin management. Artificial Pancreas. The introduction of a closed-loop system, where integrated glucose measurements provide feedback control on a pre-programmed insulin administration based on habitual requirement, would therefore relieve the patient of frequent assay requirements and perhaps more desirably frequent injections. Ultimately, the closed-loop system becomes an artificial pancreas, where the glycaemic control is achieved through an implantable glucose sensor. Obviously, the requirements for this sensor are very different to those for the discrete measurement kits. As summarized in Table 1.4, the prolonged life-time and biocompatibility represent the major requirements. 2. Industrial Process Control Bioreactor Control. Real-time monitoring of carbon sources, dissolved gases,. in fermentation processes (Fig. 1.7a) could lead to optimization of the procedure giving increased yields at decreased materials cost. While real-time monitoring with feedback control involving automated systems does exist, currently only a few common variables are measured on-line (e.g. pH, temperature, CO2, O2)) which are often only indirectly related with the process under control. Seven requirements for an implantable glucose sensor. Linear in 0 20 mM range with 1 mM resolution Specific for glucose; not affected by changes in metabolite concentrations and ambient conditions Biocompatible Smallcauses minimal tissue damage during insertion and there is better patient acceptability for a small device External calibration and Response time Prolonged lifetime-at least several days, preferably weeks in use Three different methods of controlling a bioreactor are: Off-line distant: central laboratory coarse control with significant time lapse Off-line local: fine control with short time lapse On-line: real-time monitoring and control On-Line Control. Method 3 is most desirable, which allows the process to follow an ideal pre-programmed fermentation profile to give maximum output. However, many problems exist with on-line measurements including in situ sterilization, sensor life-time, sensor fouling, etc. Some of the problems can be overcome if the sensor is situated so that the sample is run to waste, but this causes a volume loss, which can be particularly critical with small volume fermentations. Off-Line Control. Although Method 3 may be the ultimate aim, considerable advantage can be gained in moving from Method 1 to Method 2 giving a rapid analysis and thus enabling finer control of the fermentation. The demands of the sensor are perhaps not as stringent in Method 2 as in Method 3. Benefits of Control. The benefits which are achievable with process-control technology are considerable: Improved product quality; reduction in rejection rate following manufacture Increased product yield; process tuned in real time to maintain optimum conditions throughout and not just for limited periods Increased tolerance in quality variation of some raw materials. These variations can be compensated in the process-control management Reduced reliance on human seventh sense to control process Improved plant performance-processing rate and line speed automated, so no unnecessary dead-time allocated to plant Optimized energy efficiency The use of biosensors in industrial process in general could facilitate plant automation, cut analysis costs and improve quality control of the product. 3. Military Applications Dip Stick Test. The requirement for rapid analysis can also be anticipated in military applications. The US army, for example, have looked at dipstick tests Summary of potential applications for biosensors Clinical diagnosis and biomedicine Farm, garden and veterinary analysis Process control: fermentation control and analysis food and drink production and analysis Microbiology: bacterial and viral analysis Pharmaceutical and drug analysis Industrial effluent control Pollution control and monitoring o Mining, industrial and toxic gases Military applications based on monoclonal antibodies. While these dipsticks are stable and highly specific (to Q-fever, nerve agents, yellow rain fungus, soman, etc.) they are frequently two-step analyses taking up to 20 min to run. Such a time lapse is not always suited to battlefield diagnostics; the resulting consequences are suggested in Fig. 1.7(c). A particularly promising approach to this unknown hazard detection seems to be via acetylcholine receptor systems. It has been calculated that with this biorecognition system, a matrix of 13-20 proteins are required to give 95% certainty of all toxin detection. 4. Environmental Monitoring Air and Water Monitoring. Another assay situation which may involve a considerable degree of the unknown is that of environmental monitoring. The primary measurement media here will be water or air, but the variety of target analytes is vast. At sites of potential pollution, such as in factory effluent, it would be desirable to install on-line real-time monitoring and alarm, targeted at specific analytes, but in many cases random or discrete monitoring of both target species or general hazardous compounds would be sufficient. The possible analytes include biological oxygen demand (BOD) which provides a good indication of pollution, atmospheric acidity, and river water pH, detergent, herbicides, and fertilizers (organophosphates, nitrates, etc.). The survey of market potential has identified the increasing significance of this area and this is now substantiated by a strong interest from industry. The potential applications of biosensors are summarized in Table 1.4. Tuning to Application. The potential for biosensor technology is enormous and is likely to revolutionize analysis and control of biological systems. It is possible therefore to identify very different analytical requirements and biosensor developments must be viewed under this constraint. It is often tempting to expect a single sensor targeted at a particular analyte, to be equally applicable to on-line closed-loop operation in a fermenter and pin-prick blood samples. In practice, however, the parallel development of several types of sensor, frequently employing very different measurement parameters is a more realistic. Advantages of biosensors over other measurement schemes They can measure nonpolar molecules that do not repond to most measurement devices. They are as specific as the immobilized system used in them. They allow rapid continuous control. Disadvantages of biosensors Heat sterilization is not possible as this would denature the biological part of the biosensor. The membrane that separates the reactor media from the immobilized cells of the sensor can become fouled by deposits. The cells in the biosensor can become intoxicated by other molecules that are capable of diffusing through the membrane Changes in the reactor broth (i.e., pH) can put chemical and mechanical stress on the biosensor that might eventually impair it. Future of Biosensors:- Biosensors have the potential to affect many areas. Field application areas including medicine, physical therapy, music, and the video game industry, can all benefit from the introduction of biosensors. Although biosensors are not limited to any group of people, they are particulary useful for the handicapped. Even completely paralyzed individuals have electrical activity in their bodies that can be detected. One biosensor application developed for the handicapped is an electronic instrument that produces music from bioelectric signals. Signal inputs such as eye movements, muscle tensions, and muscle relaxations are converted to MIDI (Musical Instrument Data Interface) and output to a synthesizer. Before being mapped to MIDI, the signals are analyzed for specific intensity and spectral characteristics for the particular individual. For dysfunctional or weak muscles the signals can be amplified according the the level of tension and relaxation. These signal inputs are then interpreted to control volume, pitch, tempo, and other aspects of musical composition. Medical applications are presently seen in the diagnosis and correction of eye disorders . Strabismus is a condition in which an individuals eyes are not aligned properly, and thus do not move in conjunction with one another. This can be corrected by surgery but the current use of prisms to determine the degree of correction necessary is not very accurate. Biosensors tracking the eye movements can determine with high accuracy the number of degrees in both the X and Y planes that the eyes need to be adjusted. Just as biosensors can be used to determine amounts of eye correction, they can also be used to train the eye as they can be an input device to video game exercises to realign eye tracking. This same method of muscle training through a video game could be used for rehabilitation of potentially any muscle group, as biosensors can be individually customized to detect levels of muscle activity for most muscle groups. In the same way that patients undergoing rehabilitation could use biosensors as an input device for their video exercises, the video game industry could use biosensors as yet another powerful input device for entertainment. Also contributing to physical therapy, biosensors can help to create custom exercise programs for injured patients and athletes, can be used by athletes to check muscle condition, and can be connected to a multitude of external monitoring devices. Some Future Goals :- There are future applications that make biosensors ideal input devices. Eye tracking devices that can focus and select objects in 3D virtual environments would couple sight and limb 3D selection creating powerful immersive environments. The laser abilities from the eyes of Superman could be realized by users in a virtual environment. Possible use of prosthetic limbs where just the bioelectric activity to the nerve endings of a missing limb could be used to control an artificial limb. In cases of paralysis, the nerves, prior to loss of transport ability, or brainwaves might be electrically monitored for instructions to control/move a mechanical device attached to the paralyzed limb. When brainwaves can be reliably monitored, we can study relationships between EEG (brain activity) and specific cognitive activities such as sleep behaviors and sleep states. Simple brain wave detection has been successful in early research stages, but breaking through the use of subvocal commands would be perhaps the most powerful input controller we have yet seen. Just picture monitoring brain activity so that when you think draw a circle, a circle appears on your monitor or in your virtual environment.

Principles of Effective Offender Intervention

Principles of Effective Offender Intervention Introduction From way back in history, the process of correcting those who were believed to be wrong in a way or another was practiced. Communities are guided by certain morals, and whenever one goes against the morals, it is believed that the person might have a problem and it is only good to deal with the problem before it escalates. People are different; whereas there are people who can change by just being advised to do so, there are some who need intense programs to change. Correcting young ones so that they can be part and parcel of the bigger community is a process that must be guided by principles. The four principles are meant to intervene and help the targeted persons to be better people in the society. The four principles of intervention There are four different principles of intervention that are used in making sure that some of the young law offenders are helped to become better people in the society (Guevara, 2009). The four principles are more in a sequence because one must follow the other if good results are to be achieved. Effecting one principle in the absence of the previous might produce different results which might be opposite of the expectations of the community or the program. For a lot of years, the four principles have been used in many correction facilities, and they have produced tremendous results. Risk principle Offenders are divided into different groups as far as risk is concerned; low-risk and high-risk offenders. Low-risk offenders are offenders who do not pose a great threat to the community as well as to themselves. When it comes to such offenders, all that is needed is minimal coaching or minimal intervention for them to fit back into the community. For example, an offender who has been involved in a quarreling that resulted in violence is not a high-risk offender. The reason for stating so is because the offender might have acted out of frustration but not under motivation or passion. Therefore, the attention and resources needed to bring back such a person on the track are minimal. At the same time, the person is not a threat to him or her life. The second group consists of high-risk offenders. These types of offenders are not only a risk to the community but themselves. When it comes to attending to them, a lot of resources are required. The interventions used must also be in line with their needs. Risk principle calls for prioritization of resources in line with the risk of the offender. For example, a person who possesses a risk to a larger community cannot be treated like a person who possesses lesser risk. The methods of intervention used on a riskier person also differ in some ways (TJRC, 2016). The principle helps in addressing cases with all the seriousness they deserve. The principle is effective and reasonable. For example, a person who is used to involving him or herself in criminal activities needs a more effective intervention method. The reason for doing so is because a lesser effective method cannot help him or her. The intervention methods are not meant to punish but to change. Allowing continuous offenders back to the community with the expectations that he or she will change is not helping him or her in any way. Since he or she has proven to be risky, it is only good to make sure that more resources are used so as to make the intervention effective. Need principle Need principle states that the needs of the offenders should be considered in any given intervention process. The need might be direct or indirect. Some people are forced by circumstances to engage in criminal activities. In most cases, they lack a thing or two, and that is why they end up doing what they do. What they lack is what is referred to as a need. The principle states that for a person not to go back to his or her old ways, the need must be satisfied. A person might end up being a criminal for lack of education and knowledge on certain issues. Taking that person through a correctional facility and bringing him or her back to the society only solves part of the problem. Therefore, it is important to enlighten that person on the issues that he or she might not be familiar with so that he or she cannot go back to his or her old ways. The environment, on the other hand, can influence one towards committing a crime. When the environment of the offender is not looked into, the offender is taken back to the same risks after corrections, and that might not bear the expected results. For example, if a person lives in an environment where people live by the gun and earn from illegal activities, taking him or her back to such an environment is exposing him or her to risks (Edward Jennifer, 2004). The principle is effective because it tries to look for a lasting solution in the process of making sure that an offender gains from an intervention program. Helping people and not looking at what they lacked for them to commit a crime is dealing with the problem partially. The best way to make sure that criminals do not get back to their old ways is dealing with the causes, and that means looking at the needs and satisfying them. Treatment principle The treatment principle emphasizes the need to look for the most effective treatment strategy. The principle concentrates much on the high-risk offenders. An offender must go through some effective treatments for him or her to be accepted back in the community. Factors to consider when it comes to treatment are the type of treatment, the interval of treatment, and the length of the treatment. A person who is of great danger to the community must be treated in a different way. Though the main reason why the offender is taken in a correctional facility is not to be punished, a high-risk offender must be treated in a way that he or she will never admire hurting himself or others. The treatment must be intense and if the need calls it must take a longer period so that he or she can be ready to fit in the community after the treatment. There are different offenders, and they are motivated to engaging in criminal activities by different reasons. Some are criminals because they are failed by their brain. In such cases, the treatment must be special and different from others. Regardless of him being a high-risk offender, the person also has a mental health condition. In such a case, double care is required (Guevara, 2009). The facility or the parties involved might choose to provide both psychiatric help and at the same time correctional help. By so doing, the offender gets his or her sanity back and is helped to avoid getting into trouble shortly. The principle is effective because it considers the nature of the offender. By considering the nature of the offender, it becomes easy to help a person with a series of problems by knowing the best way to treat him or her. Fidelity principle Fidelity principle states that the program must be run by people who follow the rule of law and whose integrity cannot be compromised (Edward Jennifer, 2004). It is important to know that the offenders need help and there is no way of doing it better than taking them through a program. The person running the program should leave the responsibility of correcting to the service providers, and he or she should not be bribed to grant favors to some of the law offenders. The principle is effective because it makes sure that any offender goes through the program and benefits from it without any shortcut. Conclusion The four principles guide offenders towards using the most effective ways in gaining help. At the same time, they guide the service providers towards being effective and taking care of the offenders on humane ways of doing things. Though the four principles have dwelt so much on programs and services, their main aim is to help the law offenders so that they can be people who can be accepted back into the community. They are in place to make sure that most humane means are used to correct the offenders. At the same time, they make sure that each offender is provided with help that is suitable to his or her behaviors. References Edward, J. Jennifer, A. (2004). Applying the principles of effective intervention to juvenilecorrectional programs. Retrieved from http://cjonline.uc.edu/resources/criminal-justice Research/applying-the-principles-of-effective-intervention-to-juvenile-correctional programs/ Guevara, M. (2009). Implementing Evidence-Based Policy and Practice in Community Corrections, 2 Nd Edition. Retrieved from http://b.3cdn.net/crjustice/92d6c98633d1448ff0_cfm6iiq27.pdf The Justice Research Center. (2016). What Works Principles. Retrieved fromhttp://thejrc.com/wwi-principles.asp

Miranda Grey and Frederick Clegg from The Collector by John Fowles Essa

Miranda Grey and Frederick Clegg from The Collector by John Fowles Miranda Grey and Frederick Clegg are the main characters that are interpreted in the text The Collector, by John Fowles. Both characters correspond to different classes in society. John Fowles uses the concept of the implied reader, in which he 'speaks to' a specific reader in mind in an attempt to have the story interpreted in a particular way. Fowles expects us to read Miranda as an intelligent, mentally independent being part of the upper class, but at the same time, an arrogant "liberal humanist snob" (Radhakrishna Rao, www.freshlimesoda.com/reviews/thecollector.html). The use and lack of several literary techniques, point of view, allusion, and Heraclitian philosophies encourages this intended response I hold towards Miranda. Fowles' various writing techniques promoted the interpretation that Clegg is part of the lower class and as a result is a victim of the mind, unable to expand his thoughts or feelings. It is because of this that he finds it hard to see between what is morally correct, and what is not accepted. I found it difficult to respond to his character due to the fact that the protagonist in most novels is one easy to identify with, unlike the motives of Frederick Clegg. Fowles' uses several literary techniques to enhance the proposed analysis of Clegg. The first insights to Clegg's mental restrictions are revealed as early as the first page. However, "Instead of accepting everything that Clegg says at face value we must question it" (The Collector: Wizard Study Notes pg. 11), and that is exactly how Fowles intends it. Clegg portrays his information as an informal account of events, perhaps similar to a description of hi... ...n emotionally, which encouraged part of my response to be out of compassion. Fowles intends for us to question both characters and has succeeded in doing so. BIBLIOGRAPHY ============ Class handouts, The Collector: Wizard Study Notes, 1992, Wizard Book, Victoria. --------------------------------------------------------------------- Moon, Brian. 1992, Literary Terms: A Practical Glossary 2nd Edition, Chalkface Press, Perth. -------------------------------------------------------------------- "John Fowles': The Collector" 1999, Pegasos, [online] Available: www.kirjasto.sci.fi/jfowles.html "The Collector", Fresh Lime Soda Books [online]. Available: www.freshlimesoda.com/reviews/thecollector.html Radhakrishna Rao "The Collector by John Fowles", 2003, Green Man Review, [online] Available: www.greenmanreview.com/book/book_fowles_collector.html

Comparison of the American and French Revolutions Essay -- American Fr

Comparison of the American and French Revolutions The American and French revolutions both compare and contrast in their origins and outcomes; both revolutions began due to the common peoples need to obtain independence and liberty from an oppressive government. The American Revolution was triggered by the American colonists need for financial independence from the overpowering nation of Great Britain, while the French revolution was a struggle to gain social equality among the masses. Although the American and French Revolutions were fought over the same ideas, the American Revolution is considered more â€Å"conservative† than the French. The intent of the American revolutionaries was not to initiate a revolution, but rather to gain their freedom from a â€Å"long train of abuses,† The French however were trying to cause a true revolution they were not just fighting for freedom but instead to over throw and remove the monarchy. The American revolutionaries had no choice but to defend their liberties; the tactics used by the Americans were not as directly aggressive as those used by the French. The American Revolution, beginning in 1776, was initiated due to the tension that existed between the thirteen American colonies and the island of Great Britain due to the war debt Great Britain had incurred when defending American colonists against the French and Indians. As a solution to the debt the British began passing legislation, which increased the taxation of American colonies, tightening their control over the colonists. One of the regulations that Parliament passed was the Stamp Act of 1765. This taxed all printed documents, including: wills, newspapers, and pamphlets. The colonists felt they were not fairly represented because they held no seat in Britain’s parliament. The rallying cry for the colonists became â€Å"no taxation without representation." After years of boycotting and peaceful protest the American colonists could no longer stand the abuse from Great Britain and decided that they had had enough. In 1775 the British troops and American Militia exchanged first shots of the Revolution. On July 4th, 1776, the Second Continental Congress issued the Declaration of Independence, written mostly by Thomas Jefferson. Due to a decisive American victory at Saratoga, the French agreed to aid the Americans, mainly because of a longstanding hatred between the French... ...g an impartial solution for all. The National Assembly took the Tennis Court Oath, which stated that no one was to leave unless a constitution was enacted for France. On August 26th, the Assembly drew up the Declaration of The Rights of Man and citizen. In contrast to the American Revolution, the French Revolution was more violently approached. Both the American and French revolutions ended with a victory of independence. In the American Revolution, the American colonists gained their independence from Great Britain while the French gained social equality and converted from an overpowering monarchy to a republic. They differed, however, by the means in which each set of revolutionaries went about revolting. The American Revolution was less violent and the Americans had attempted to first establish a compromise with King Louis XIV. The French Revolution was much more aggressive; the storming of the Bastille and massacre of many French nobility are prime examples of the violent tactics used during the revolution. Both revolutions have not only adequately show the importance of individual and universal rights, but also show two different ways of achieving liberty through revolt.

Dangers of Fast Food Essay -- Essays on Fast Food

It's quick, it's convenient, it's delicious. Fast food is the most popular quick-service nourishment. It plays an important roll in the lives that we humans so perfectly laid out for ourselves. Why try cooking when you can get food at a much faster rate? To most people, fast food is the answer to all of our problems. It is good in every possible way, or is it? Although some might deny the consequences, we all know there is a steep price to pay. So here by today, I am asking you to have a closer look at the hidden dangers. In my opinion, we should free the world of fast food because, not only are they adding the amount of cruelty to animals and draining money out of our pockets, they're also taking great risk of the health of billions of people. Ever since the world?s first fast food restaurant started business, it has been responsible for the death of 50 billion animals worldwide each year. It?s an astounding number, yet the slaughtering is still increasing rapidly. The irresistible taste of heaven keeps the cash coming in, and keeps the people addicted. ?Meat is an essential part of our food-chain.? One might say. ?We can?t all live our lives being vegetarians!? It?s true that we can?t stop the butchering of animals. But if you were to witness the horrifying pictures of slaughter houses, you?d think differently. The pigs all have their skin sliced open to revel the organs, while chickens hang with their furless wings flapping. Just because of our selfish needs, we?re treating them with violence and cruelty. It is time for some real action, to correct our mistakes. It was wrong in the first place, to slaughter others for our own benefits. And it would be more so, if we don?t put a stop to it. And because we humans are. .. ... convenience, and forget all the dangers? Do we want to pay the price of our physical condition just for better tasting food? If we get rid of fast food, we can not only help people make healthier choices, but also save the lives of millions of people. Having fast food makes our lives more convenient in all ways. You no longer have to wait in long line ups, and can get food at a much fast rate. Yet, how can we still permit fast food when it is doing harm to our society? They no only increase the slaughtering and death of billions of animals, but are also costing us more than we can afford. But not important of all, they are putting millions of lives at risk. Just for a quicker and more delicious meal. We must forbid fast food from ever reaching the shelves. And every time you open up a package of MacDonald?s ask yourself this question. ?Am I making the right choice

New York Day Women in Krik? Krack!

Nascine Coote English 102 Mrs. Tracy Nashel â€Å"New York Day Women† Suzette is curious mother about her mother, more than she is about her. It’s clearly that Suzette and her mother have conversations and gets along with just minor issues. However Suzette mother always assumes her daughter is fine and everything is going well for her. It’s clear that Suzette does not know a lot about her mother, and probably was not that close to her. One example is when Suzette was following her mother she stated â€Å"she didn’t know her mother her mother ate frankfurters,† but knows her mother should not eat nothing with sodium.Suzette’s mother is not interested in he daughter. Suzette’s mother was not too much interested in her personal life she always watch lottery on channel 11, and is okay with denture and claims her significant other does not kiss her as he use to, she have conversation with herself while in the kitchen peeling the skin off th e poultry. Suzette’s mother told her daughter how of a good stewardess she would be and how she know she was doing well in school so she didn’t evening had to find out anything from her teacher.The Narrator was curious to see what her was about and follows her to a park to find out what she was up to and she found out she attends to other peoples kids and bought food for him and gave more loving and interest in him that she ever receive. One example was when she peak in his big bird book as if she was very interested. Her daughter must be surprised by this because she has never showed interest in her especially the parents-teachers associate meetings she should have attended when she was a student in school. The Narrator also describes her mother family back home in Haiti.She lost six of her seven sisters in Ville Rose and never fined the strength to return for their funerals. She had a conversation with her daughter about sending clothes to Haiti, but she never really send those clothes and never travel back to Haiti. Suzette’s mother had plans of doing good deeds but never have a will to fulfill them. She does not seem to shows a lot of interest in her family, but rather other people and their well being. Suzette’s close attention, while she observed her mother with another child. She feeds the lady’s child with food she bought and Suzette also observed this.She also observe how easily the child hand slip into her mother’s hands easily like he knows her for a long time â€Å" when he raises his face he look at her as if he looking at the sky† maybe this work because of her height or something else that was not clear. The child’s face was very happy when she gave him the soda, she helps him to do everything for example put the straw in his drink and not just assume he got it like how she would do her own daughter in assuming she is doing well because she just want to believe so.She also takes interest in the book he had, but she never did in Suzette’s parent’s teachers meetings. The Narrator mother will tell her the most wonderful things in the world, but she doesn’t really goes the extra miles to make sure she was doing well in school, she also trusted her daughter to be great and take responsibility for her own studies and to make her proud. Suzette was curious about her mother mission and finally examine how she interest with other people’s kids which is way different from how she interacted with her.