Developing Good Work Ethics Essay Example

Developing Good Work Ethics Paper As a social actively Its purpose Is the preservation of society. Work therefore has moral and legal implications. Work is a legitimate use of our mental and bodily powers for economic gain or profit 1 . Work is the use or application of our physical powers to accomplish certain tasks. It is the use because nobody can own another mans body, nor can anyone sell his body or any part of it, for purposes of material advantage or gain. . Work is the repose of obtaining economic gain for the power. It belongs to the essence of work that it can be compensated. The Meaning of Work in the Holy Bible From the biblical point of view, God is seen as the author of work and he also blessed and sanctioned work. Old Testament God did not Just create man, He was also the author of work. In Genesis chapter 1, He creates pattern for us to follow He created the world for SIX days and rested on the seventh day. The reason for this respite Is for man to appreciate the value and meaning of work. New Testament The meaning of work could be understood from the mystery of Gods reincarnation. When Christ became man, humanity was blessed and sanctified, including human work. Seen from this perspective, work therefore is not a drudgery, not even a curse, but an activity that has been sanctified, then it must also sanctify the worker. The Theological Meaning of Work According to SST. Thomas Aquinas SST. Thomas Aquinas enumerates four purposes of work In his treatise entitled Summary Theological 1 . It provides for ones day livelihood. 2. It prevents Idleness which Is the source of many evils. . It curbs the rebellious flesh. 4. It enables man to give alms from his material surplus. The Human Perspective of Work . Practice the Golden Rule. 2. Guard your mouth. 3. Stop the green Jokes. 4. Practice ethical behavior. 5. Learn to forgive. 6. Be generous. 7. Respect superiors and co-workers. 8. Be considerate. 9. Perform your work and fulfill your duties to the best of your ability. 10. B ea grateful person. 11. Do not bring the problems at your home to your workplace. (vice versa) 12. Be an inspiration to others. 13. Read the bible every day. 14. Develop a personal relationship with God. 5. Smile and enjoy work. (remember: work has been sanctified, it must also sanctify you) Basic Duties of Employers 1 . Respect the dignity of the worker 2. Appreciate their work. 3. Never treat them as a slave for making money. 4. Never assign them beyond their strength, do not employ them in work not suited to their age or gender. 5. Give them commensurate or fare wages. 6. Provide for their health and social recreation. 7. Provide them time for the practice of their religion. 8. Instruct them how to use their money wisely. 9. Instruct them to love their family. 10. We will write a custom essay sample on Developing Good Work Ethics specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Developing Good Work Ethics specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Developing Good Work Ethics specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Provide them opportunities for promotion. Basic Duties of Worker 1 . Work honestly and comply with all agreements. 2. Never injure capital, nor steal from the employer. . Never outrage the person of the employer. 4. Never employ deceit nor violence in presenting a cause. 5. Never consult with agitators or men with evil principle. CHAPTER 15 Equal Employment Opportunities and Affirmation Action EQUAL JOB OPPORTUNITY- Is a labor policy that prohibits business from discriminating against otherwise-qualified people with disabilities. JOB on the basis of personal merit but on the basis of partiality or bias. AFFIRMATIVE ACTION Involves policies to increase opportunities for ethnic minorities by favoring them in hiring and promotion, college admissions, and the awarding of government entrants. What is employment discrimination? Employment discrimination is a form of discrimination based on race, sex, religion, national origin, physical disability, and age by employers. Earnings differentials or occupational differentiation is not in and of itself evidence of employment discrimination. Discrimination can be intended and involve disparate treatment of a group or be unintended, yet create disparate impact for a group. 179. What are the factors to consider? Soon and Palm-Angles (1997) think that it really depends on several factors, such as the following: Who his competitors are What abilities his competitors have How interviewers see him How he performed during the exams and interviews 180. Is it easy to detect discrimination in the workplace? The truth is that it is not easy to detect whether or not there is discrimination in the workplace. Spotting employment discrimination is a big headache because it is generally hard to know whether specific individuals were actually discriminated against. 181 . What are the elements of Job discrimination? It may be of help if we are to identify some elements or factors that somehow constitute Job discrimination (Velazquez, 1998), and I enumerate here as follows: 1) When a Judgment, decision, or treatment (not based on personal merit such as seniority, performance rating, or other qualifications) is intended against anyone of the workers and his/ her particular group (2) When a Judgment, decision, or treatment springs from prejudice or bias, from false stereotypes, or from other ways of unfair attitude aimed at a particular group to which the worker belongs (3) When a Judgment, decision, or treatment is disadvantageous, pejorative or simply harmful to the worker, perhaps costing his/ her Job, promotion, or pay raise 182. How do you know whether those elements apply to our earlier example? Most likely, racial discrimination was a shadow behind the promotion or a better pay if the following three elements are present: (1) Was the discussion of management to bypass the Filipino assistant manager in favor of the French assistant manager based on personal merits such as seniority, performance rating or other qualifications? Or the criterion to promote the French assistant manager has nothing to do with merits, qualifications, and credentials? (2) Did the decision spring from false stereotypes such as the French are more competent, aggressive, or trustworthy Han Filipinos, Asians in general, and other ethnic groups? The presence of this element may be hard to prove. (3) Was the decision disadvantageous to the Filipino assistant manager in terms of a promotion or a better pay? 183. Is there discrimination against women in the workplace? In the Philippine setting, it looks like there is still some kind of Job discrimination The major challenge women have to confront relates to the fact they are the ones who biologically bear children and carry most of the burden of rearing and caring for them. Employers are equally afraid they must provide childcare support by setting up a Hillsdale facility at or near the workplace and other unending benefits for women. Almost always, HER managers are inclined to distinguish between a career woman and a mother, with the latter usually discriminated against in favor of the former. 184. What are the stereotypes against women? Job recruitment and interviews are discriminatory if the recruiter or interviewer routinely disqualifies women by relying on sexual stereotypes. These stereotypes may include some presumptions: There are fields of occupation, which are traditionally suitable for women because of their sensitive, vulnerable, and fragile nature. There are types of work, which may not be fitting to women due to their biological condition like monthly period. The inability of women to cope up with certain Job requirements since their common gender personality and aptitude traits make them unsuitable for those Jobs. Such generalizations about women are not only biased or prejudicial but also UNTRUE. 185. What is the lesson learned from the 1997 film 6. 1. Jane? The movie 6. 1. Jane, starring Deem Moore, demonstrates the active presence of a determined woman in the toughest military facilities of the US Navy Seals. Veritably, mimes have changed. In the real world-not by pure chance, luck, or accident-women have become heads of state in Israel, Pakistan, India, Nicaragua, Ireland, Finland, Great Britain, New Zealand and other nations. 186. How is discrimination related to right to life ? It is unethical and socially irresponsible for any employer to dismiss or discharge an employee merely on account of his/her marital status. Hiring, firing, promotion, or demotion must be subject to an objective, unbiased and fair criteria. Workers ought to be treated equally on the basis of individual merit and not on the ground of sexual orientation or marital status. 187. What are ethical principles involved in Job discrimination? Discrimination in the workplace is wrong and socially irresponsible because of the following reasons: 1) Discrimination in hiring is a disservice in the long run. To hire the best and the smartest it is wiser to select somebody whose talents and personality traits quality him/her as the most competent for the Job. If you so hire and appoint someone on the basis of other criteria unrelated to competency, then subsequent Job performance necessarily declines and productivity goes down. Thats one pragmatic argument against employment Discrimination. 2) It is actually double Jeopardy. Both the object and the subject of discrimination turn out to be the loser. The company could have possibly hired the worker discriminated against, the one who might turn out to be the best and most suited for the Job. But because it was biased, the company did not pick up the best possible applicant, suffered a disadvantage and got no blessing. Ethics. To discriminate is not the right thing to do. Each person has a fundamental right to be treated as a free and thinking individual and all other individual including employers) have a correlative moral duty to treat him/her as such. 4)when business discriminates, it consciously or unconsciously affirms that one group is inferior or subordinate to another group, that people from the province are less qualified than city residents, or UP and La Sale graduates are better than CRU or PUP graduates, that women are less capable than men, that French employees are better that Filipinos. Such regarding stereotypes undermine the self-esteem of those groups against whom the stereotypes are directed and thereby violate their fundamental right to be treated as equals. Discriminatory practices are not consistent with ethical management which upholds that all are equal in essence and dignity and that all men and women have the same basic rights and duties. Everyone is created equal in essence and dignity, in spite of the race or color, religion, sex, party affiliation, or business connections (Velasquez, 1998). 188. What is the best practice of shell in terms of diversity standard? Creating an inclusive environment that elicits the very best from its employees is fundamental to shells success. Therefore, the oil company is committed to manage diversity as a radical business activity. It values the broad range of cultural and personal differences that exists in the company. The company is benchmarking CARS on diversity and inclusiveness. Shell dedicated to respect each employees need to balance work and personal demands, and provide equal opportunity for everyone to compete through well-understood and consistently applied employment and performance standards. Thus, the company provides means for employees to share, networking, learning, self-development and communication. Royal Dutch/shell group(2002) reports that shell companies across the globe promotes a culture in which all shell employees, contractors, and Joint ventures share his commitment for diversity. In order to underpin this commitment, every shell company must assure that it: Has a systemic approach to diversity management addressing each of the elements of the group Diversity Framework; Actively supports attraction, development, retention, and promotion of diverse talents; Promotes a workplace free from harassment and discrimination; Establish annual diversity plans, goals and targets for improvement; measures, appraises and reports business performance; Includes diversity performance in the appraisal and development plans of leaders ND employees; Provides safe and effective ways for employees to report observed behavioral inconsistencies with this standard. Chapter 16: Against Conceptualization Is Conceptualization Socially Responsible? What is labor conceptualization? Is the replacing of regular workers with temporary workers who receive lower wages with no or less benefits. These temporary workers are also known as sometimes called contractual, trainees, apprentices, helpers, casuals, piece raters, agency-hired, and project employees, among others. They do the work of regular workers for a specified and limited period of time, usually less than six months. The work they do is desirable and necessary for the companys survival, but they never become regular employees even if they get rehired repeatedly under new contracts. The general public is sounding the alarm on the steady growth of both unemployment and underemployment. The concrete situation of millions of sales ladies in our department stores and giant malls, some factory workers, house helpers, carpenters, gasoline boys, workers in the barber shops and parlors, whose jobs are permanently temporary, simply because they are contractual. They have no stable Jobs, no ASS, no medical insurance, no security of tenure?not to mention the 6 million Overseas Filipino Workers who are employed on a contract-to- contract basis, more than 70 percent of whom are domestic helpers and entertainers stationed in four corners of the globe. The new millennium, tagged by management guru Peter F. Trucker as the century of knowledge society, is witnessing the sudden increase of part-time Jobs even among our professionals. This is happening in spite of the fact that the Filipino labor force in general is globally recognized as technically proficient, highly educated, almost always over skilled, let alone our competitive advantage in the English language. Filipino workers are prioritize among Asians by many international companies. Is contractual labor part and parcel of the big economic landscape? Contractual labor is and has been there as part and parcel of the big economic picture?in agribusiness, sweatshops, construction, and retail business. Nevertheless, the fact that it has been with us for a long time does not make it correct. At any fast food chain you and your kids happen to drop by and eat, it is very probable that only a few of the uniformed crew (18-24 years old) who are on duty will become casual, probe, or regular employees. One thing is sure for those crew embers, the rest of them are out of work before the sixth-month deadline imposed by Labor Code. Even oversupplied nurses are now contractual laborers. From there, some have to renew their contracts while others have to look for another job, usually in another fasted or gasoline station or hospital, and the vicious cycle of conceptualization continues without ceasing. The conceptualization of labor is a business strategy or practice, validated to be cost effective. What could be the raisin d ©tree why Article 23 was included in the Universal Declaration of Human Rights that says, Everyone has the right to work, to free choice f employment, to Just and favorable conditions of work and to protection against unemployment? The basic foundation for full employment is the 1987 Philippine Constitution protecting the right to full employment in the following provision: Article 13, Section 3, The State shall afford full protection to labor, local and overseas, organized and unrealized, and promote full employment and equality of employment opportunities for all. From here, we can safely assume that both able and disabled bodies have the natural right to earn a living by a meaningful occupation, a Job worthy of the free and hinging person. This basic human right to work and earn a legitimate means of livelihood entails a solemn duty on the part of private business sector and the government to provide ample opportunities for adequate work and full employment. Jobs are not enough. It should be adequate and full?regardless of how beautifully some pundits explain various theories of underemployment. Why is it a choice between underemployment and unemployment? Underemployment refers to an employment situation that is insufficient in some important way for the worker, relative to a standard. Examples include holding a part-time Job despite desiring full-time work, and over qualification, where the employee has education, experience, or skills beyond the requirements of the Job. Unemployment (or Joblessness) occurs when people are without work and actively seeking work In the technical sense, conceptualization is a form of underemployment. The right to adequate work and full employment is essential to all men and women of legal age, as swimming is essential to a fish and flying to a bird (well, most birds). This basic right springs from our intrinsic nature to self-preservation and our innate obligation o support our family, both of which are in accordance with the divine plan. Although underemployment (conceptualization and part-time Jobs) continues to exist in many various ways, there are no reasons adequate enough to Justify it. The key principle is that full employment is a fundamental right of every citizen, which means the right to be protected from unemployment and underemployment is basic. The harsh reality, however, appears to contradict this idealism embodied in our In most cases, on the part of the Jobsharers, who are almost always breadwinners, it is a choice between Joblessness and underemployment, a quick option between anger and at-least-theres-hope-for-survival. Is conceptualization a scheme for profit minimization? Ever since the Philippines Jumped into the GATE-WTFO bandwagon, times have been especially difficult for labor. The name of the game is cheap labor. In order to attract foreign investors?aspiring to be competitive as they say with our Asian neighbors? we have to provide the cheapest labor possible. And this cheap labor comes through conceptualization of Jobs and services. It appears that conceptualization is a scheme that allows capitalists to replace their workforce with ease according to market demands. This translates to minimization of profits for the company, but for the laborers, this system denies them the security and benefits of a regular Job while being paid very low wages. Conceptualization has become the main form of labor in many Philippine businesses, a good reason why there are hardly any labor unions in the country or why most workers are not organized in the new millennium. Contractual workers cannot afford to Join unions because they are at the mercy of their employers. Many laws protecting workers protect only regular employment. Ethics and Professional Codes of Conduct The era of globalization has created a need for a specialized skills and knowledge. 1 . Skills is the ability to do something well. 2. Knowledge skill that acquire during your education and experience. The reason for the globalization is known as full automation. This situation bring the word profession, professional and professionalism exist in the corporate world. 1 . Profession a type of Job that requires a special education, training or skill. 2. Professional -relating to a Job that requires special education, training, or skill done or given by a person who works in a particular profession paid to participate in a port or activity 3. Professionalism the competence or skill expected of a professional. Members of profession are required by their association to follow their particular rules or guidelines known to be Professional codes of conduct. These guidelines prescribe responsibilities that members must adhere to and situations in which they must not involved. In some cases, members must be sanctioned for violation of the code. These sanction may include the following : Payment of a fine Payment of a cost of any investigation Reprimand Imposition of condition on membership Suspension from membership Sometimes ,the law silent or absent in some areas of our human conduct. The law does not say anything about this human conduct and its regulation. In the absence of law, some people tend to make their own professional codes of conduct. However, professional codes of conduct are limited only to some specific professions and cannot be entirely regulated and imposed to all while Ethics is universal and applicable to all.

Animal Imagery of Moral Reversal Essay Example

Animal Imagery of Moral Reversal Essay Example Animal Imagery of Moral Reversal Essay Animal Imagery of Moral Reversal Essay In William Shakespeare’s Macbeth. the subject of moral corruptness is portrayed through the moral reversal of animate beings through out the drama. Shakespeare utilizes this scheme to assist set up the subject to his audience. This type of reversal is normally connected with Macbeth himself and the more he grows self corrupt. the more abundant the carnal imagination. Toward the beginning of the drama. Macbeth is portrayed off as a king of beasts in comparing to a coney. an bird of Jove in comparing into a sparrow. demoing Macbeth’s bravery and courage ; †¦Yes’ as sparrows bird of Joves. or the hare the king of beasts. If I say sooth. they were as cannons overcharged with dual cracks†¦ ( Act I: Scene II: Line 35 ) . This image merely helps set up further the moral reversal and corruptness throughout the drama because. as a reader. Macbeth is here seen as a brave brave adult male. a hero if you must. But as the drama goes on. we drastically see a alteration in Macbeth as he grows more corrupt and following along with it. we see the alteration in carnal imagination associated with Macbeth. Not merely does Shakespeare utilize carnal imagination to portray Macbeth and his ain corruptness. but he besides uses it to arouse it by picturing moral upset amongst the animate beings themselves. demoing how Macbeth’s actions non merely impact him. but the balance of nature as good. On Tuesday last A falcon tow’ring in her pride of topographic point. Was by a mousing bird of Minerva hawked at and killed. And Duncan’s Equus caballuss – a thing most unusual and certain - †¦Turned wild in nature†¦ Tis said they ate each other. This scene was depicted after Duncan’s decease by the homicidal manus of Macbeth. This non merely shows how Macbeth’s negative actions upset the balance of nature. but it shows the destroying of balance with in Macbeth himself. This comparing to Macbeth before being portrayed as a king of beasts. an bird of Jove. as this brave adult male. shows his displacement in character. It’s a great word picture of his corruptness come oning within contrast to earlier word pictures. We have scorched the serpent. non killed it. She’ll be close and be herself. whilst our hapless maliciousness remains in danger of her former tooth. In Act III Scene II. Macbeth thinks of Banquo in this manner because of the witches’ stating he will do male monarchs. but non be one himself. Macbeth refers to Banquo like this because he has identified Banquo as a menace that could. as a serpent can. skulk in the undergrowth and work stoppage him when he least expects it. It is an dry usage of the image. since it is Macbeth who truly is the snake. Macbeth falls deeper in his corruptness. merely doing him to seek out to get rid of others who he sees as a threat . The carnal imagination here helps portray this image and this item. Macbeth says o. full of Scorpios is my head. beloved married woman! Meaning his head is full of immoralities and dark ideas. This shows his realisation of his corruptness. and here we can see more that Macbeth has fallen deeper into his ain corruptness in contrast to early portraitures of his corruptness. Throughout Macbeth. Shakespeare uses carnal imagination non merely every bit metaphorical imagination. but to portray the autumn of Macbeth and his interior corruptness.

E-business Essay Example | Topics and Well Written Essays - 3000 words

E-business - Essay Example Benefits of Ebusiness to Organizations: Ebusiness expands the marketplace to not only national but also the international markets. It also decreases the cost of storing and retrieving paper-based information. This kind of business also reduces the time between the outlay of the capital and the receipt of products and services. Ebusiness also reduces the telecommunication costs as internet is relatively much cheaper than Value Added Networks. Organization to focus: The website on which we will focus in this report in Asus.com. Asus is one of the leading companies in the manufacture of notebooks, netbooks, motherboards, graphic cards, etc. Asus is regarded as the number one manufacture of mother boards in the world. They are believed to be blessed with one of the world’s best research and development team who believe in innovation of the product. Ebusiness Website: The ebusiness website of Asus is developed by one of the best people which mark the tradition of the company and pe ople can understand it through a look at that website. However, its ebusiness operations can be improved in various other ways. How to improve? There are numerous ways by which web analytic systems can be improved, and if the company knows what it is supposed to do, the web analytic systems are very useful. ... The profit margin and the overhead cannot be easily reported in most of the key analytic system, but the average sale price, conversion rate and the number of visitors who visit the website can be measured by the good key analytic systems. Improving Customer Satisfaction through ebusiness: The customer satisfaction can be improved through ebusiness using a number of factors that encourage long term relationships. Customer Relationship: Improving customer relationships is a very important factor of customer satisfaction. When dealing with customers, empathy is very important. A couple of factors by which this can be done are by addressing the customer by his name, knowing what was the product he purchased recently and offering new product according to his taste and preferences which makes him feel that the business has thought about his needs and makes him feel important. Asus.com should develop various service-quality and relationship-building initiatives which are designed specifica lly to give customers a reason to buy products from its firm and do frequent business with them. The business strategy of Customer Relationship Management should be given more attention by asus.com in order to optimize profitability. Service and Support: Different studies reveal that customers purchasing through the web usually find poor customer service and this becomes the reason they refrain from purchasing a product online. One of the main reasons of this is that when customers buy using internet, they serve themselves, but they do not really want to receive and lesser service than what they receive in the real world. The requirements of ebusiness are higher expectations for

Oil and Gas Exploration at ANWR Assignment Example | Topics and Well Written Essays - 3250 words

Oil and Gas Exploration at ANWR - Assignment Example The major and new technologies that have led to an increase in oil drilling are the hydraulic fracturing technique and the horizontal drilling techniques. These technologies make it possible to drill oil, from tight shale rock formations. Cogswell, therefore, explains that these technologies will manage to increase the production of oil in the United States by approximately 30%.   However, there is a considerable debate on whether to allow offshore drilling in the United States. The issue of offshore drilling gained a wide media coverage when President Bush canceled an executive, issued by the then President in the year 1990. Furthermore, President Bush was calling for an increase in the oil drilling of the Arctic National Wildlife Refuge. There is a considerable debate that surrounds this issue, on whether to drill or not to drill oil in this region. President Obama is against the drilling of oil in the Arctic National Wildlife Refuge, citing the fact that it would lead to environ mental damage and pollution. On the other hand, President Bush was an avid supporter of drilling of oil in this region. His argument was that it would help in meeting the oil demands of the country. Despite the existence of this debate, this paper takes a stand that drilling of oil in the ANWR is harmful to the environment, and there is a need of regulating companies responsible for drilling oil in this region.  The problem and issue under consideration are that the drilling of oil in the ANWR is harmful to the environment of United States.

D.L.S Essay Example | Topics and Well Written Essays - 1250 words

D.L.S - Essay Example So they don’t think there’s any way to extract information regarding this period Now I will mostly be interested in stating Smail’s ideas and supporting them with the excerpts from his book called ‘On Deep History and the Brain’. Before actually explaining the above mentioned points, one thing that must be clarified is that Smail is against the typical psychological treatment to the history. In fact, he prescribes a rather neurophysiological treatment to this case. The reason to support this sort of view is that such an approach will bring interdisciplinarity to the study of history which in turn will help in exploring history from different perspectives. Moreover, this will also tackle the presentism brought in by psychological treatment of the subject. In his words, ‘What do we gain from a deep history centered on the neurophysiological legacy of our deep past? Well, one bene?t is a new kind of interdisciplinarity that joins the humanities an d social sciences with the physical and life sciences. This is, I hope, something we would all like to aim for. This kind of interdisciplinarity, in turn, provides an opportunity for escaping the sterile presentism that grips the historical community.’ (Smail 1) According to Smail, the first and the most important of the facts that kept historians from including the prehistory to history is their dependence on the Sacred Scripts for the point of origin and the different marks of the history. Historians believed that the history started from the Garden of Eden. This point of view can be for any reason including religious, racial or political. This is how historians neglected the Paleolithic Era and in doing so they alienated a large number of audiences who were keen to know the happenings of this remote past. Smail pinpointed this loss in these words: ‘Historians risk alienating this audience if they continue to ignore that part of our history which consists of the deep past.’ (1) Smail suggests that in order to peek at the remotest past we have to move from ‘Sacred’ to ‘Human’ – our history must be centered on brain and biology rather than religion. Although Sacred History plays a major role in giving a historical account of the events that were of religious importance but it must not be the base on which the history building is to be erected. The most important reason is that it has only three major marks to go back to the past viz. Expulsion from the Garden of Eden, the Universal Deluge and the Destruction of the Tower of Babel. So it does not offer much. Latin and Greek historians generally worked in this genre as their emperors were influenced by Christianity. For those historians who were influenced by this Judeo-Christian style of history writing, history began at Eden or from Genesis. So they don’t know what happened before Expulsion from Eden. Secondly, their scope is limited to religious trea tment of the events so all they were available with for help were religious scripts or scholars who molded every aspect of history to religious mold. Not only this religious treatment but also any other treatment whether it is philosophical or

Theories of Colour Vision

Theories of Colour Vision Kishan Lakhani How does colour vision work? It is difficult to imagine a world without colour perception as it is constantly in action by a whole spectrum of living organisms and for a range of purposes, it â€Å"not only allows us to detect objects that might otherwise be obscured by their surroundings; it also helps us to recognize and identify things we can see easily† (Goldstein, 2000, p.203), thus making it an essential component of vision. Colour dictates survival in many environments; the artic fox boasts a white pelt allowing effective camouflage over its prey and a significant factor in its ability to hunt (Sekuler Blake, 2006). I will explore the mechanisms that are said to explain colour vision at the photoreceptor level and beyond, but first of all we must understand what colour actually is. The electromagnetic spectrum ranges from cosmic rays to radio waves, as wavelength increases. Between UV and Infrared lies a strip, visible light, this is what we are interested in with regard to colour (Snowden et al., 2006). Colour arises when light rays from this visible spectrum (390nm-750nm) are reflected off objects and into our eyes. Differing wavelengths of light from this spectrum subsequently determine the colour perceived, as short wavelengths produce the colour violet (350nm), medium and long wavelengths produce green and red respectively. Sir Isaac Newton famously wrote â€Å"The rays to speak properly are not coloured. In them there is nothing else than a certain Power and Disposition to stir up a Sensation of this or that colour† (Sekuler Blake, 2006, p.236) So colour doesn’t really exist in the physical world at all, it is our own psychology that creates the concept of colour. Semi Zeki (1983) refined Newton’s words further saying that colour vis ion is a â€Å"property of the brain, not the world outside.†( Sekuler Blake, 2006, p.236) Hence we can sum up that colour vision lies in the eyes and brain – and not in the physics of light itself (Anderson 2012). So to answer the question ‘How does colour vision work’ we must explore the visual systems of the organisms further. Figure 1 The Electromagnetic spectrum (2012), Diagram showing the visible spectrum within the electromagnetic spectrum Photoreceptors are light sensitive cells found at the back of the eye in the retina. They contain visual pigments that absorb photons of light and convert this light energy into chemical energy, this process is called phototransduction. Within the pigment is a protein which determines the wavelength of light absorbed by the pigment and also a chromophore which is responsible for absorbing photons of light. (Wolfe et al., 2009) There are 2 types of photoreceptors, rods and cones. Cones are mainly concentrated in the fovea in the centre of the retina whereas Rods are completely absent in the fovea and more prevalent in the periphery of the retina (Snowdon et al,. 2006). Rods are adapted so they can operate in low light levels due to spatial pooling allowing scoptic vision, whilst sacrificing visual acuity. They contain just one pigment rhodopsin – denying colour vision due to the univariance principle. Cones however contain 3 photo pigments, which are sensitive to various wavele ngths of light and can therefore let us see colour. In comparison to the physical description of light, colour is much easier to describe as it is experienced psychologically not physically – such is the nature of light. It can be specified by just three values; hue, saturation and lightness.(Palmer, 1999) This is very important with reference to colour vision as it implies that many different lights will produce the same colour experience (Palmer, 1999). The three perceptual dimensions of colour can be summarised in what is known as the colour spindle. Hue is referred to as â€Å"the chromatic aspect of light† (Wolfe et al., 2009) and is dictated by its wavelength. Saturation corresponds purity and how vivid the colour is (Palmer 1999), and brightness involves the intensity of the colour (physically). The Young/Helmhotz trichromatic theory of colour vision works on the photoreceptor level, and ultimately was sprouted through the results of Helmhotz’s colour matching experiment. Observers were allowed to vary the intensities of 3 primary lights and mix them (in a comparison field) to match the colour of a single wavelength in a test field. They had to find a psychological match between the mixture of primary lights and the test light, simply by varying the intensities of the primary lights. This match is known as a metameric one, as the light in the comparison field is physically different yet psychologically identical to that in the test field. Results showed that by varying intensities in the comparison field, the observer could find a metameric match using just three primary lights. Dichromatic observers were unable to find matches for every colour in the test field. In summary, â€Å"with 3 primaries, you can get any combination of responses in the 3 cone types, so you can match the appearance of any test light.† (Anderson 2012) It is therefore clear to us that colour vision heavily relies on three different receptor mechanisms or cone photopigments, each with different spectral sensitivities (Goldstein, 2010). This is the basis of the trichromatic theory I will now elaborate on. Monochromats possess only one type of pigment in their cones. In this case, the ability to see colour is not possible. The same chain of events is initiated in the visual receptor despite there being a variety of wavelengths in the light absorbed by the pigment. The receptors response conveys information about how much light has been absorbed, but this response provides no information about the wavelength of this absorbed light. (Sekuler Blake, 2006) It is therefore impossible to discriminate wavelength when there is only one photopignment, which has uniform spectral sensitivity. The response could have altered due to a change in wavelength or light intensity, and monochromats are none the wiser – this is known as the principle of univariance. This situation is not unique to monochromats, as in low light levels rods are the only photoreceptors in action. They have one photopigment, rhodopsin resulting in the same dilemma. Consequently we â€Å"disregard the wavelength inform ation and see an image that appears in shades of grey† (Snowden et al., 2006) explaining why we can’t monochromats can’t see colour and why none of us have colour vision in low light levels. Dichromats possess two photopigments, which is very useful in terms of colour vision. The two pigment types have different absorption spectra, extracting some usable wavelength information about light (Sekuler Blake, 2006) It is now possible to separate and disentangle wavelength and intensity, allowing colour to be visible to a certain extent. Certain wavelengths are confused and constitute failures of discrimination (Sekuler Blake, 2006). A key reason that leads to the idea humans aren’t dichromats revolves around what is known as the neutral point. All dichromats possess this neutral point in which a single wavelength is always confused, and â€Å"the existence of a single neutral point is the hallmark of a two-pigment eye.† (Sekuler Blake, 2006, p.249) As humans do not show any traits of having the neutral point, there is a strong belief that humans have more than two cone photopigments. Trichromats hold three cone photopigments, enabling total discrimination of wavelengths throughout the visible spectrum. Trichromacy also ties in with Helmhotz’s colour matching experiment, indicating three not two photoreceptors are required for complete colour vision across the entire visible spectrum. The three pigments are most sensitive to light of a particular wavelength – approximately 430, 530 and 560 nanometres respectively. (Sekuler Blake, 2006) Figure 4 shows the each cone pigment absorbs a very wide range of wavelengths. So between 400nm and 650nm there are at least two types of cone photopigments absorbing light. In the region of 475nm, all three types of pigments are affected and stimulated. (Sekuler Blake, 2006) Hence we can conclude that the absorbance range is tremendously increased with three photopigments, and as light is reflected onto the retina every wavelength of light in the visible spectrum can be perceived in the form of colours by our brain. Trichromatic theory may explain how the existence of just three cone photopigments allows colour matching for any wavelength of light in the visible spectrum, using just three primary lights. However, it still leaves many unanswered questions when it comes to having a full understanding of how colour vision works – as Hering highlighted. Negative afterimages, the visibility of four psychologically pure hues (blue, red, green and yellow) and the absence of complementary hues such as blueish – yellow all indicate that trichromatic theory alone is inadequate in explaining how colour vision works. Hering made an important discovery with regard to afterimages. If we stare at the black dot in Figure 5 for around 30 seconds, and then look at a blank piece of paper we notice the colour of each square changes. The green changes to red and red to green, whilst the blue changes to yellow and the yellow to blue. Based on results like these, Hering proposed the concept that red and green are paired and blue and yellow are likewise paired. (Goldstein, 2010) An experiment where observers were shown patches of colour, and then asked to estimate the ratios of blue, green, red and yellow from each patch they received. Results showed that observers very rarely saw blue and yellow, or red and green together. (Abraham Gordon, 1994 cited in Goldstein, 2010) Sekuler and Blake (2006, p.255) also support this view that these complementary hues do not coexist, as â€Å"an object never appears both blue and yellow at the same time.† Hurvich and Jameson’s hue cancellation experiment st rengthens the case further, as any redness was eliminated when a green light was added to the red light. Hering also observed that those who are colour blind to red, are also colour blind to green; which ultimately led him to declare the opponent-process theory of colour vision. (Goldstein, 2010) So we can deduce from this evidence that blue is paired with yellow and red with green; the basis of the opponent-process theory. The opponent-process theory of colour vision follows the trichromatic theory, rather than replacing it, the two work hand in hand to explain how colour vision works. In fact it is the responses from the cones of the retina that form the basis of the opponent channels. (Anderson 2012) There are three opponent channels, two chromatic and one achromatic, and are formed by combining the responses from the three cone types. (Sekuler Blake, 2006) Figure 6 displays the red-green chromatic channel is comprised from the outputs of the M and L cones. It is also known as the M – L channel, as it signals the difference between the outputs of the M cones and of the L cones. (Sekuler Blake, 2006) The second chromatic channel is the blue-yellow channel, and it represents the difference between the S cone outputs and the sum of the M and L cone outputs. (Sekuler Blake, 2006) It is therefore also referred to as the S – (M + L) channel. The achromatic channel is known as the luminance channel, and combines the output of the M and L cones so we can also label it the M + L channel. The activity in this luminance channel hinges on the sum of excitation of both M and L cones (Sekuler Blake, 2006). This addition can lead determine an object’s visibility, â€Å"The shape of the photopic sensitivity curve (closely related to visibility) can be predicted by taking a sum of M and L cone responses.† (Smith and Porkorny, 1975 cited in Werner et al., 1984). Russel DeValois was responsible for the finding of opponent neurons in the retina and lateral geniculate nucleus (LGN), which could provide physiological evidence to back up Hering’s propositions. (Goldstein, 2010) The LGN is the station responsible for receiving input from the retina and transmitting it to the visual cortex. Devalois conducted experiments on LGN cells of monkeys (who have the same trichromatic vision as ours), and discovered opponent cells which behaved as if subtracting outputs from different cones and also nonopponent cells which behaved as if adding outputs from different cones. Devalois discovered opponent cells reproduced an ON or OFF response determined by the wavelength of light. (Sekuler Blake, 2006) This can explain the first chromatic channel Hering proposed (M – L) channel. Long wavelength cone excitation results in a positive or ON response, whilst medium wavelength cone excitation results in a negative or OFF response. Hence if the net re sponse is positive then a red colour is visualised (long wavelength of light), and similarly a blue colour is perceived if the net response is negative. This supports Hering’s initial observation that the hues red and green cannot coexist. Opponent cells were also responsible in explaining the S – (M + L) channel. Short wavelength cone excitation results in a positive or ON response, whilst wavelengths around 580nm (M+L) cone excitation results in a negative or OFF response. Further findings included the fact that nonopponent ON cells produced ON responses for every wavelength, although some wavelengths produced stronger responses than others and OFF cells produced OFF responses for every wavelength again with varying strengths. It is these nonopponent cells which form the achromatic channel outlined by Hering. (Sekuler Blake, 2006) All in all, colour vision begins at the photoreceptor level as explained by trichromatic theory. The outputs of the three cone photopigments have been redistributed into the achromatic and chromatic channels at the LGN, as trichromacy progresses to opponent-process theory. Palmer (1999) concludes by describing the dual process theory; in which the products from the trichromatic stage are used as the inputs for the secondary opponent-process stage. As we venture from the LGN, further into the visual system, the information is perceived by the visual cortex of the brain facilitating us with colour vision. Bibliography Anderson, S (2012). Colour vision, Vision and visual perception, Optometry. Aston University Dimitri Poumidis, (2008), Spectral Sensetivities [ONLINE]. Available at: http://www.gravurexchange.com/gravurezine/0805-ezine/ploumidis.htm [Accessed 25 January 13]. Goldstein, E. B. (2010). Sensation and perception (8th ed.) Chapter 9. Wadsworth Cengage Learning Joshua Stevens, Jennifer M. Smith, and Raechel A. Bianchetti , (2012), The Electromagnetic Spectrum [ONLINE]. Available at: https://www.e-education.psu.edu/geog160/node/1958 [Accessed 03 January 13]. Marc green, (2004), Opponent process theory [ONLINE]. Available at: http://www.visualexpert.com/FAQ/Part1/cfaqPart1.html [Accessed 09 February 13].Paul Schils , (2012), Chromatic adaptation [ONLINE]. Available at: http://www.color-theory-phenomena.nl/12.00.htm [Accessed 08 February 13]. Palmer, S. E. (1999). Vision science: photons to phenomenology, Chapter3. Massachusetts Institute of Technology Sekuler R. Blake R. (2005). Perception (5th ed.) Chapter 2. McGraw-Hill Sekuler R. Blake R. (2005). Perception (5th ed.) Chapter 7. McGraw-Hill Snowden R., Thompson P. Troscianko T. (2006). Basic Vision, Chapter 1. Oxford University Press Snowden R., Thompson P. Troscianko T. (2006). Basic Vision, Chapter 5. Oxford University Press Tom Jewett, (2009), Hue, Saturation, Brightness [ONLINE]. Available at: http://www.tomjewett.com/colors/hsb.html [Accessed 10 January 13]. Wolfe, J.M., Kleunder, K.R., Levi D.M., et al (2009). Sensation and perception (2nd ed.), Chapter 5. Sinauer Associates Inc

Comparing Obsession in Mary Shelley’s Frankenstein and Aldous Huxley’s

Comparing Obsession in Mary Shelley’s Frankenstein and Aldous Huxley’s After Many A Summer Dies the Swan Authors leave fingerprints on the works they write. Underneath the story, hidden amidst the words, lies a worldview, a concept of humanity, a message. Mary Shelley’s Frankenstein is an entertaining story meant to give the reader goose bumps late at night, but the telling of the story also reveals Shelley’s concept about the basic fabric of human nature. In the same way Aldous Huxley in After Many A Summer Dies the Swan weaves a tale that is part story and part commentary on how humans interact and think and self- destruct. In Frankenstein, Mary Shelley portrays obsession as an anomalous aspect of human behavior resulting when people move away from their basically good nature, while Aldous Huxley portrays obsession as the most intrinsic of all human qualities. This paper will contrast the basic views presented in each book about the origin of obsession and its relation to human nature, giving examples of how the authors’ views are embodied in their characters. In the novel Frankenstein, Mary Shelley presents a view of human nature that is largely positive so long as it does not wander into the dangerous realm of obsession. She speaks of human endeavors and discoveries as being valuable and good. The young Victor is enchanted by scientists who have â€Å"performed miracles† by â€Å"penetrating the recesses of nature† (45). The discovery and contemplation of the natural world is a means by which characters find serenity and calm, and thus come in tune with the beauty of their humanity. In the midst of the sublime wilderness, even Victor contemplates â€Å"divine ideals of liberty and self-sacrifice† (1... ...nts human nature as basically good aside from the selfish obsession perpetuated by withdrawal from normal society and human behavior. Huxley offers a bleaker view, portraying self- obsession as an innate quality ensnaring all of his characters unless they are freed to transcend their humanity and seek another level of consciousness. If Shelley and Huxley were here today, debating the merits of their stance, Shelley may might utter the words of Pete Boone, â€Å"I suppose I’ve been too optimistic.† And Huxley, adjusting his thick glasses, might reply as Propter did, â€Å"Too optimistic in certain directions, and at the same time too pessimistic in others† (188). Works Cited Huxley, Aldous. After Many a Summer Dies the Swan. Mattituck, New York: American Reprint Company, 1976. Shelley, Mary. Frankenstein. New York: Barnes and Noble Classics. 2003.

The Buchanan Report And The Monderman Thesis

The statement is false. This is a tricky question! Although the Buchanan Report and the Monderman thesis do offer visions of how to manage traffic they also offer us two competing visions of social order. The Buchanan Report is underpinned by a social order which privileges the segregation of humans and motors through an array of measures in urban design and the regulation of the conduct of both drivers and pedestrians. This social order emphasises the value of a social environment delivering the conditions for individual mobility and car acquisition as a valued mark of success. The Monderman thesis stresses a social order where involvement and cooperation emerges from an individual capable of negotiating with others a shared use of public space. In this shared space approach, people are not segregated from traffic. You're right. Although Goffman's view of the centrality of interaction is visible in Monderman's approach to negotiating ‘shared space', Chapter 7 argues that, as Foucault shows, social order tends to be specified by experts within particular historical discursive frameworks. Although both Buchanan and Monderman were important in their own right, their ideas were developed and taken up within particular contexts that ‘authorised' their development (made their ideas seems appropriate and fitting to the needs of the time). Foucault claims that expert discourses, established by those with power and authority, are often disputed by competing expert discourses. Buchanan's ideas have dominated for a long period. Monderman's are perhaps gathering force and challenging those of centralised planning and direction. Foucault's view of how the authority to order social life is bound up with scientific knowledge is demonstrated in the discourses and practices of both Buchanan and Monderman.

Facts About the Order Cetacea

Facts About the Order Cetacea The Order Cetacea is the group of marine mammals that includes the cetaceans - the whales, dolphins and porpoises. Description There are 86 species of cetaceans, and these are divided into two suborders - the mysticetes (baleen whales, 14 species) and odontocetes (toothed whales, 72 species). Cetaceans range in size from just a few feet long to over 100 feet long. Unlike fish, which swim by moving their heads from side-to-side to swing their tail, cetaceans propel themselves by moving their tail in a smooth, up-and-down motion. Some cetaceans, such as the Dalls porpoise and the orca (killer whale) can swim faster than 30 miles per hour. Cetaceans Are Mammals Cetaceans are mammals, which means they are endothermic (commonly called warm-blooded) and their internal body temperature is about the same as a humans. They give birth to live young and breathe air through lungs just like we do. They even have hair. Classification Kingdom: AnimaliaPhylum: ChordataClass: MammaliaOrder: Cetacea Feeding Baleen and toothed whales have distinct feeding differences. Baleen whales use plates made of keratin to filter out large quantities of small fish, crustaceans or plankton from the sea water. Toothed whales often gather in pods and work cooperatively to feed. They prey on animals such as fish, cephalopods, and skates. Reproduction Cetaceans reproduce sexually, and females usually have one calf at a time. The gestation period for many cetacean species is about 1 year. Habitat and Distribution Cetaceans are found worldwide, from tropical to arctic waters. Some species, like the bottlenose dolphin may be found in coastal areas (e.g., southeastern U.S.), while others, like the sperm whale, may range far offshore to waters thousands of feet deep. Conservation Many cetacean species were decimated by whaling. Some, like the North Atlantic right whale, have been slow to recover. Many cetacean species are protected now - in the U.S., all marine mammals have protection under the Marine Mammal Protection Act. Other threats to cetaceans include entanglement in fishing gear or marine debris, ship collisions, pollution, and coastal development.

Importance of schedule and routine for Young children Essay Example

Importance of schedule and routine for Young children Essay Example Importance of schedule and routine for Young children Essay Importance of schedule and routine for Young children Essay The agenda and everyday constituents of planning can assist make a model of security for immature kids. Children who are provided with a predictable agenda and secure environment are more likely to experience confident about researching their universe . Through these geographic expeditions, kids strengthen their connexions to the people and environment around them ( Klein, 2002 ) . The format becomes familiar to them, and they welcome the periods of self-selected activities, group clip, out-of-door drama, resting, eating, and toileting. The constitution of trust that grows between instructor and parent is based on consistent day-to-day contact and the wellbeing of the kids. An Educational Program is a procedure by which pedagogues use Five Specific Principles that are cosmopolitan constructs accepted by professionals working with immature kids: All kids are alone. Child s parents are their primary pedagogues. Child learn though drama. A kid s whole being develops as one. Childs take larning into their ain custodies. These rules guide pedagogues in their Three Main Duties: Establishing a acquisition environment. Planning and conducting activities. Intervening democratically with kids, parents, and staff members. A Planing Play Experiences Why Do Early on Childhood Educators Plan Play Experiences? Supportive counsel from grownups is indispensable for traveling kids to higher degrees of development. To assist kids develop in their usage of drama as a vehicle for increasing nervous constructions. Why Plan -To aid kids pattern accomplishments they will necessitate subsequently in life. To estimate a kid s developmental advancement A When kids are engaged in an activity, all countries of their development ; Physical, social-emotional, cognitive and linguistic communication are being stimulated. Any growing in one dimension triggers growing in others. It is of import for pedagogues to acknowledge all countries of development and to be after intercession, environments, and activities throughout the twenty-four hours that foster overall development of the kid. Because the kid s whole being develops as one: Design an environment that fosters all countries of development ( physical, social-emotional, cognitive and linguistic communication ) . Provide assorted stuffs with the aim of furthering all countries of development. A Because the kid s whole being develops as one: Establish a day-to-day and hebdomadal modus operandi that meets the developmental demands of kids. Observe kids to detect their abilities and endowments in all countries of development, and program activities that build on these. Plan state of affairss and play activities that foster the development of the whole kid A Because the kid s whole being develops as one: Record observations about the kids. Usher kids in productive ways so that, they may profit from all larning chances. Talk with kids about their drama. Keep ambitious kids. Collaborate with parents and co-workers. A Children Take Learning into Their ain Handss All kids already possess the seeds that will let them to develop to their full potency. Educators do nt make the acquisition for the kids, but they H2O the seed of acquisition by supplying age-appropriate challenges that reinforce the kids s abilities and construct on them. Educators open the manner by promoting kids to do picks, observe, experiment, explore, interact, and be independent. We empower kids when we allow them to develop their ain ideas, feelings, and organic structures, and back up them in pass oning their thoughts, doing links, being funny, and interacting actively with the universe around them. When we provide kids with chances particularly created for them, they become active scholars and lief take part in the procedure. Because kids take larning into their ain custodies: Establish clearly-defined, good -equipped larning Centres in rumpus rooms. Ensure that the acquisition environment is at kids s degree and to the full accessible. Arrange stuffs to promote liberty, decision-making and active engagement. Label shelves and transparent bins with images that show where stuff belong. A Because kids take larning into their ain custodies: Allow kids to take activities and stuffs harmonizing to their involvements. Offer open-ended activities. Plan activities that foster success. Use rumpus room direction tools ( planning boards, occupation boards ) . Plan activities that stimulate kids to detect their involvements and promote them to move upon them A A I. Time Agendas An Unstructured Timeline that explains what each clip slot will dwell of. Basic things to retrieve when making your clip agenda: Provide for jumping periods of quieter and more active experiences. Provide for indoor and out-of-door drama. Have sensible gait throughout the twenty-four hours. Have a balance between single ego selected learning experiences every bit good as little and big group activities. What should it include? Meeting the Needs of Children The agenda should supply for jumping periods of quieter and more active experiences. The agenda should supply for indoor and out-of-door drama. ( Include alternate activity periods for inclement conditions. ) The agenda should supply for a sensible gait throughout the twenty-four hours. The agenda should supply for a balance between single self-selected acquisition experiences, and engagement in the more structured small-group times. The agenda should supply for modus operandis. Meeting the Needs of Adults Adults need assortment merely as kids do. Adults need respite from being invariably with kids. The agenda must supply clip for health professionals to recognize and chew the fat with parents at the beginning and terminal of the twenty-four hours. A Sample Timetable 9:00 9:10 Good Morning single hullo s 9:10 9:30 Show and Tell 9:30 9:45 Exercise Time 9:45 10:00 Bathroom Time 10:00 10:30 Snack and Quiet Book Time 10:30 11:15 Centre Time 11:15 11:30 Math Activity 11:30 11:50 Language Time 12:00 12:30 Lunch 12:30 1:15 Deferral 1:15 2:00 Quiet Time ( Rest ) 2:00 2:30 Free Play 2:30 2:45 Story Time 2:45 3:00 Review of the Day s Events 3:00 3:15 Prepare for Home A As the kids arrive it is of import for early childhood educators/educational helpers to retrieve, that the kids s parents are their primary pedagogues. Educators play a truly of import function in kids s lives, because kids spend many hours each twenty-four hours in their attention. However, it is really of import that kid and household services workers neer forget that parents are the primary pedagogues of their kids. The pedagogue s function consists in supplying larning chances to kids that complement and reenforce the households values, attitudes and behaviors at place. Children will ever profit if parents and pedagogues are consistent in their educational attacks at place and at the Centre. This implies changeless communicating between parent and pedagogue. Parents should besides hold entree to the Centre s installations throughout their kid s twenty-four hours. It is of import that you greet each kid upon reaching. The parent should convey the kid to the rumpus room used for arrival clip, where kids of different age groups gather until most of the kids have arrived. It is of import that you, or the pedagogue nowadays, inquire the parent for any information that might hold an impact on the kid s twenty-four hours. Some kids will experience separation anxiousness and will shout as they see their parents leave ; it is of import to take clip to soothe these kids and to hold them concentrate on an activity or a plaything that is merriment. Typically, these kids shortly integrate into the group. A Engagement | Exploration | Application | Connection | Top created 12-Oct-2009 modified 12-Oct-2010 glossary right of first publication

Impact of Computers on Day-to-day Life Essay Example | Topics and Well Written Essays - 1000 words

Impact of Computers on Day-to-day Life - Essay Example Social networking is another area in which computers have changed peoples’ lifestyle. Many of the offline businesses were transformed to online businesses because of the abilities of computers in promoting e-businesses or e-commerce. Weather forecasting and global positioning systems are some of the other areas in which computers are used extensively nowadays. This paper analyses the impact of computers in day-to-day life. Business is one area, which gained a lot because of the introduction of computers. It should be noted that instant communication is made possible because of the introduction of computers and internet. Business always likes to have the exchange of information as quickly as possible in order to make sound decisions. Earlier, fax messages and telephonic conversations were used for business communications along with telephones. However, these technologies had many limitations in communicating the ideas properly between the stakeholders of business. The introduct ion of computers helped business people to present their ideas clearly to others. Computer controlled machinery is used a lot in many of the manufacturing units nowadays. This machinery has the ability to do provisioned work more efficiently than humans do. According to new figures released by the United States Department of Commerce, e-Commerce Sales accounted for 2.4% of all sales in the fourth quarter of 2005, up from 2.3% the previous quarter. Total fourth quarter e-commerce revenues came to a seasonally adjusted $22.94 billion. For all of 2005, e-commerce sales rose by 24.6% according to information from the U.S. Census Stats (Internet World Stats News) Earlier business activities were taking place only in the real world. Introduction of computers opened another channel for business in the virtual world. Many of the recent studies have shown that offline or virtual world business is going to surpass real world business in the near future. Computers have helped business people w ith another channel to market and provide their services. Education is another sector in which computers proved their worth. For effective transfer of knowledge from the teacher to students, computers are extensively used in classrooms at present. Computer assisted technologies are helping both the students and teachers to polish their ideas. For example, teachers can take notes from the internet before presenting a particular topic in the class. In the same way, exceptional students who are not satisfied with the classroom knowledge can look on the internet to get more knowledge. IPads and tablet PC’s are helping students to get rid of the inconvenience of carrying textbooks and notebooks to the classes. Teachers can assess the progress of the students with the help of computer software. In short, computers can help in the enhancement of quality of education. Social networking is the third segment in which computers are influencing people in their day-to-day life. The popula rity of Facebook, Google Plus, MySpace, Twitter etc clearly indicate the importance of computers in daily life. It should be noted that millions of people from all over the world are spending a substantial period of time in social networks nowadays. Apart from ordinary people, even business people, marketers, job seekers, etc are also interested in using social networks now. The concept of social networking would not be in place if the computer related technologies were not there. As mentioned

Cell biology &genetics - lab report Essay Example | Topics and Well Written Essays - 750 words

Cell biology &genetics - lab report - Essay Example The objective of this experiment is to observe the several stages of mitosis in an onion root cell through a light microscope. Onion root tips were prepared by washing in clean water then rinsing with distilled water. After this, a root tip section about 2mm in thickness was cut from the root tip using a sterilized scalpel; this was then placed on a glass slide with a drop of distilled water on it to avoid dehydration. Afterwards the root tip section was them fixed in Carnoy’s fluid inside a Bijou bottle for about 10 minutes. After fixing, the section was then transferred to a Petri dish containing distilled water where it was rinsed for approximately 2 minutes. After rinsing, the root tip section was then placed inside a bijou bottle containing 1 ml of 1M HCl and incubated at about 60ï‚ °C for about 5 minutes. The contents of the tube were then poured into a Petri dish and the root tip carefully picked out using forceps and transferred into another Bijou bottle containing aceto-orcein which was then left in a dark chamber for about 10 minutes. The bottle was then removed from the chamber and the root tip carefully removed using forceps and placed on a slide on which a drop of 45% acetic acid had been placed, this was then covered with a cover slip. By this time the root tip section was already well softened and stained; the tip was then squashed by slightly tapping on the cover slip with a pencil until it was evenly spread out under the cover slip as a pink mass. The glass slide with the root tip ready for observation on the microscope was then transferred to a light microscope and viewed at x400 magnification strength. Photographs of the cells undergoing mitosis were then taken and drawings made of the various stages of mitosis. It was observed in the experiment that the cell division process assumed all the four stages shown in the images above and that the staining clearly revealed the features of all the four stages it takes for a cell