Singapore Airlines Essay Example for Free

Singapore Airlines Essay Over the past four decades, it has earned a stellar reputation in the ï ¬ ercely competitive commercial aviation business by providing customers with high-quality service and dominating the business-travel segments.  World’s Best Airline award from Condà © Nast  Traveler 21 out of the 22 times it has been  awarded and Skytrax’s Airline of the Year  award three times over the past decade. What’s not so well known is that despite the  quality of its services, SIA is also one of the industry’s most cost-effective operators. From 2001 to 2009, its costs per available seat kilometer (ASK) were just 4.58 cents. According to a 2007 International Air Transport Association  study, costs for full-service European airlines  were 8 to 16 cents, for U.S. airlines 7 to 8 cents,  and for Asian airlines 5 to 7 cents. In fact, SIA  had lower costs than most European and  American budget carriers, which ranged from  4 to 8 cents and 5 to 6 cents respectively. It’s intriguing that SIA has combined the  supposedly incompatible strategies of differ-  harvard business review †¢ july–august 2010  entiation—which it pursues through service  excellence and continuous innovation—and  cost leadership. Few enterprises have executed a dual strategy proï ¬ tably; indeed, management experts such as Michael Porter argue that it’s impossible to do so for a sustained period since dual strategies entail contradictory investments and organizational processes. Yet pursuing dual strategies is becoming an imperative. The demand for valuefor-money products and services has shot up since the recent recession, particularly in developed countries, so even producers of premium offerings have to ï ¬ gure out how to grab opportunities in the middle and the low end  of the market. Moreover, multinational corporations face competition from rivals— many of them from emerging markets—that  use new technologies and business models to  provide good-enough offerings at attractive  prices. Incumbents can ï ¬ ght back by cutting  prices or further differentiating products and  services, but it’s often a losing battle.

The effect of background noise on free recall

The effect of background noise on free recall The effect of background noise upon free recall of visually presented words was investigated. A total of 60 participants were recruited for this psychological study. The experimental groups were the speech condition (N=20) and the whale sound condition (N=20) whereas the silent condition (N=20) accounted for the control condition. Participants were randomly assigned to each group. The speech, whale sound and silence accounted for the three levels of independent variable whereas the subjective free recall accounted for the dependent variable. This study formed two hypotheses. Hypothesis one proposed that more words will be recalled in the control condition than in the experimental conditions and hypothesis 2 proposed that fewer words will be recalled in the speech condition than both the whale sound and silent condition. The present investigation employed a between groups design. One way ANOVA showed that participants in the control condition (M = 12.85 SD = 2.97) significantly recall ed more words than the whale sound experimental (M= 9.05 SD =2.13) and the speech conditions (M= 9.65 SD= 3.49) (p= Key words: working memory, free recall, silence, whale sound, speech Investigation into background noise and participants free recall performance Background noise has been established to be among the most notable forms of interference in the in offices and educational settings causing stress and discomfort for workers and learners and affecting performance (Hugh Jones 2001). Background noise from aircraft, road traffic, and trains have all been shown to impair learning (Enmarker, Boman, Hygge 2006; Hygge, 2003; Wible, Nicol, Kraus, 2004 in McNeil). The working memory model proposed by Salame and Baddeley (1990) constitutes of the visuo-spatial system and phonological system, however, the memory system that is concerned with verbal visual and auditory presentation is the phonological store. The phonological store, together with the process of articulatory rehearsal constitutes what is unknown as the phonological loop (Gisselgard, Petersson, Baddeley Ingvar, 2003). Prominent psychologists have investigated the phenomenon of background noise and its interference with the working memory processes and recall impairment. For example, Salame Baddeley (1982 in Gisselgard, Petersson, Baddeley Ingvar, 2003) argued of the irrelevant speech effect which refers to a reduction in the immediate recall of lists of presented items when irrelevant auditory material is presented together with the items to be memorized (Gisselgard et al, 2003). Salame and Baddeley argued that irrelevant sound effect interferes with the temporary storage of verbal material within a phonological input store of limited capacity (Gisselgard, 2003). Jones (2004) also argues that auditory verbal stimuli have direct access to phonological system whereas visual verbal has indirect access whereas the visual verbal stimuli endeavour a process of sub vocalization before passing through the articulatory suppression system. (Jones, Macken Nicholls (2004: the phonological store of working memory). Other psychologists argue that the irrelevant speech will interfere with the representations of list items if and only they are being held within the phonological store. However, during the rehearsal process (articulatory suppression), the irrelevant sound effect may be abolished (Gisselgard, Petersson, Baddeley Ingvar, 2003), therefore not impairing word recall. Beaman Jones (1998) acknowledge that one of the earliest explanations produced for the irrelevant sound effect was the acoustic primary memory masking hypothesis (Colle Welsh, 1976) which postulates that irrelevant auditory stimuli have the action of masking phonologically recoded visual stimuli in an acoustic primary memory store. According to this approach, the items lose their distinctiveness by being masked, making their retrieval difficult (Beaman Jones, 1998). Banbury, Macken, Trenblay Jones (2001), on the contrary, argue that as the memory task and irrelevant speech are presented in different sensory modalities, the effect cannot be attributed to some kind of interference (or masking) at sensory level as suggested by Colle and Welsh( 1976). Instead they argue that this disruption must be attributable to: A confluence of processing from the ear and the eye at some level beyond the sensory organs; this can be explained as a breakdown in attentional selectivity. Despite the intent of the person to concentrate on the memory task, the irrelevant sound intrudes therefore impairing recall. (Banbury, Macken, Trenblay Jones, 2001) Banbury, Macken, Trenblay Jones (2001) suggest that interference results from the similarity of events represented in memory, a phenomenon known as phonological similarity. One subtype proposes that the disruption is based on a conflict of content between what is seen and what is heard. This may be through similarity (phonological similarity) in the identity of the irrelevant sound to the items being rehearsed (Salame Baddely 1982 in Banbury, Macken, Trenblay Jones 2001) through shared temporal cues or through degree of overlap of modality-independent features in the irrelevant speech with the items in the visually presented to-be-recalled list (Neath, 2000 in Banbury, Macken, Trenblay Jones 2001). The phonological similarity is particularly relevant in this study as a back ground speech by Martin Luther King, in English will be employed and administered in the background. It is worthy of acknowledgement that irrelevant sound hypothesis has been predominately investigated for serial recall (Lecompte, 1994 Beaman Jones, 1998). The irrelevant speech effect has been found to effect and disrupt the learning of list of words in a sequential order and Salame and Baddeley (1990) did establish that background noise was disruptive. However, free recall has also found to be affected by the irrelevant sound (Beaman Jones 1998). In light of this, the present study will investigate the irrelevant sound hypothesis through assessing free recall of subjects. Moreover, Studies (Beaman Jones, 1998 have shown that the irrelevant sound effect does equally effect serial or free recall, without distinction. For example, in testing the free recall and the irrelevant speech effect, Lecompte (1994) study found that a) irrelevant speech inhibited free recall more than white noise. In addition Lecompte (1994) had found an effect on irrelevant sound on free recall in four cond itions (Lecompte, 1994). This is also supported and acknowledged by Beaman Jones (1998). The present study will be employing whale sound as one of the independent variables although animal sound with relation to memory recall impairment have been investigated by Neath Surprenant (2000) (the nature of remembering) In other studies, the irrelevant speech effect was not found in free recall (Salame Baddeley, 1990 in Lecompte, 1994). Although there is substantial research which has found that noise disrupts learning, there is however some other investigations which established that background noise had a facilitative effect on learning as oppose to a detrimental effect dependent upon the level and frequency of the noise and subjective ratings of levels for interference (Hughes Jones, 2001). It is noteworthy that although Salame and Baddeley (1989) used Japanese speech in the background which accounted for the irrelevant speech the present study will use English Martin Luther King speech. Use of English narrative as an independent variable has also been investigated. For example, Jones, Miles and Page (1990 in Jones, Madden Miles, 1992) performed an investigation in which forward, reversed (English narrative) and Welsh (narrative) irrelevant speech were contrasted. Each produced a large and almost identical effect on the recall of consonant strings. In another study (in Jones, Madden Miles, 1992) irrelevant Italian and English produced a similar degree of impairment (Morris, Jones Quayle., 1989 in ibid) the psychologists argue that the phonological similarity effect isnt the cause of poorer recall as Salame and Baddeley (1989 in Jones, Madden Miles, 1992) have argued. The aforementioned mentioned study by Jones et al (1990) demonstrates that background speech which is similar to the language of the listener will be equally disruptive when compared to other languages such as Welsh. Oswald et al (2000 in Hughes Jones, 2001: the intrusiveness of sound) tested participants comprehension of sentences of meaningful speech, meaningless speech and in quiet. They found that performance was worse in both speech conditions relative to quiet, but most noticeably, meaningful speech was more disruptive than meaningless speech. This study therefore supports Salame and Baddeley (1990) similar phonological effect hypothesis with relation to interference and disruption, which will also form one of the hypothesis for the present study. Amidst the scope of studies already performed in the domains of irrelevant sound effect and its effect upon the phonological working memory, this present study too, aims to investigate whether or not the background speech and whale sound will impair recall for words presented visually. Method Participants A total of 60 participants were recruited for this psychological research. Each of the eight investigators for this study recruited eight participants. The control or silent condition comprised of 20 participants, the whale sound condition comprised on 20 participants and the Martin Luther King speech condition comprised of 20 participants. All these participants were randomly assigned to each of the eight investigators. All of the participants were over 18 and no other demographic variable such as specific age group or gender was considered in this present study. The participants were either related or associated with the investigators. Design variables A between subjects experiment design was employed. Participants were randomly allocated to each group. This study used one independent variable with three levels of background noise which were silent, speech, and whale sound. The silent condition was the control condition whereas the speech and whale sound were the experimental conditions. The dependent variable is the number of words correctly recalled by the groups. The noise level of the speech and whale sound was 66 -70 decibels. The present study employed the free recall methodology. Hypotheses Recall of words will be higher for the silent (control) condition than the whale sound and speech sound (experimental) conditions. This accounts for hypothesis 1. The recall of words will be lower in the speech sound condition compared to both the whale and silent conditions to investigate the phonological similarity effect and its effect of interference with information processing and recall. This therefore accounts for hypothesis 2. Stimuli and materials Martin Luther King speech (experimental condition 1); Whale sound (experimental condition2); Silence (Control condition); 20 words were selected from the Toronto Word Pool with neutral but similar levels of concreteness and imaginability. The lower level of imaginability and concreteness ranged from 1 to 3 and high ranged from 5 to 9 but the words selected were at level 4.font was Ariel size 12. The format of the words was a visual presentation of in a list form. Procedure Participants were briefed and informed consent was obtained prior to commencement of experimentation. In the silent (control) condition the participants were presented with the words. Participants learned the words for 3 minutes. Participants were then given a further 3 minutes to recall the words followed by debrief. In experimental (1) whale sound and experimental (2) speech conditions participants were presented with words and were allowed 3 minutes to learn the words accompanied with either background whale sound or speech. A further 3 minutes were given for the written free recall of words followed by debrief. In the brief the participants were informed of the whale and speech background noise, neither any approach to learn the words was mentioned. Other background interferences and auditory disruptions, other than the intended noise were kept to a minimum. Results The effect of background sound (silent, speech, whale sound) on recall of words was examined using one-way subjects ANOVA. It was expected that participants in the silent condition would recall more words than the participants in the speech and whale sound condition. The mean scores revealed that more words were recalled in the silent condition (12.85 SD = 2.97). There was almost equal number of words recalled in the whale sound (M= 9.05 SD=2.13) and the speech condition (M=9.65 SD=3.49). There was significant difference between the recall scores of the control and experimental conditions F (2, 57) = 9.748, p0.05). Participants in the speech condition recalled significantly less than the silent condition (Mean difference = -3.2 p=0.05). Therefore this experiment supports the hypothes1 and therefore the null hypothesis will be rejected. Lower recall in the speech condition compared to the silent but similar levels of recall compared to the whale sound condition partially supports hypo thesis 2. Condition Recall N Mean Standard Deviation Silent 20 12.85 2.97 Whale 20 9.05 2.13 Speech 20 9.65 3.49 Total 60 10.51 3.33 Table 1 shows the mean score for each group together with their standard deviations. The silent condition recalled the most number of words and the whale and speech conditions scoring the similar number of words. Sound Sound Mean Difference Sig. Alpha 0.05 Silent Whale 3.80 0.00 speech 3.20 0.00 whale Silent -3.8 0.00 Speech -.60 0.79 speech Silent -.32 0.03 whale .6 0.79 Table 2 Multiple comparisons showing the scores of each group, inclusive of mean difference and their significance. There is a significantly larger difference between Silent compared to whale and speech conditions. There is a significant difference between whale and silent condition but not with speech condition. There is a significant difference between speech and silent but not with the whale condition. This test supports hypothesis 1 expected the recall for words in the control condition to be higher than the experimental thus supporting the experimental hypothesis and rejecting the null hypothesis. However, there is not a significant difference between the speech and whale noise condition therefore as fewer words were recalled in the speech condition compared to the silent condition and assessing that there is not a significance recall difference when compared to the whale noise condition only partially supports hypothesis 2. Recall Sum of Squares Df Mean Square F Sig. ÃŽÂ ·p2 Between Groups 166.933 2 83.46 9.74 0.000 0.25 Within Groups 488.050 57 8.56 Total 654.983 59 Table 3 is showing the between and within groups mean scores and shows that the differences between the groups is significant (p= Discussion This present study attempted to investigate the effect of background sound on recall for words. The investigation manifested that overall the recall for the control (silent) condition was higher than the experimental (whale sound and speech) conditions. Therefore is supportive of the hypothesis 1 of this study and of the irrelevant sound hypothesis, and therefore rejecting the null hypothesis. The minor partial eta square effect is also noteworthy showing that the independent variables did not greatly affect the participants recall of words. In relation to the phonological similarity effect due to the administration of English words and English speech, it was found that articulatory suppression in the speech condition did not abolish the phonological similarity effect as well as the irrelevant speech effect which are known to impair the processing and retrieval of visually presented words. This is evident through lower production of words in the Speech condition. Therefore this study has supported the phonological similarity effect and its impairing effects upon processing visually similar verbal information. This investigation has shown that the practice of rehearsal or articulatory suppression did not abolish the both the phonological similarity effect and the irrelevant sound effect. The abolishment the phonological similarity hypothesis through articulatory suppression is well documented by Gisselgard, Petersson, Baddeley Ingvar (2003). The findings of these results can therefore be extended to the wider world where people are reading verbal information and listening to verbal auditory concurrently, albeit individual differences can also be taken into consideration. It was acknowledged that hypothesis 2 was partially supported because even though significantly fewer words were recalled in the speech condition than the silent condition but the difference is not statistically significant when compared to the whale sound condition. This finding is therefore also interesting as animal whale noise had equal level of disruption than human verbal speech. Despite the interesting findings, this study however, does have some limitations. This present study didnt take into consideration other individual variables such as age, gender. Considering these variables could yield further complimentary or contradictory results which could be subjected to empirical analysis. In a study performed by Ellermeier Zimmer (1997) individual difference was found with relation to susceptibility to the irrelevant speech effect. One study demonstrated that males and females perform differently in the presence of music when undertaking different tasks and exercises (Miller Schyb, 1989). In future studies, demographic variables and specific sample can be considered to ensure more reliable and valid results. Moreover, this present study did not take vocal or instrumental music as an independent measure and variable, although these variables may also be critical. Therefore, in future studies the inclusion of music condition and how background music facilitate s and impairs learning can also be considered. Hillard and Tolin (1975), for example, showed that if the background music was well-known to the subject, they performed better on the given task than when unknown music was present. The domains of familiarity and unfamiliarity of music can therefore, also be explored. Moreover, in another study, the psychoacoustics found that music that contained speech had significant detrimental effects on the participants ability to perform tasks (Martin, Wogalter Forlano, 1988). Extensive studies can be performed in light of all of the aforementioned variables.

Corruption and Integrity

Corruption and Integrity Corruption and integrity are two forces contradicting with each other. Corruption are generally rampant on the society where integrity is not valued as it is to be.The society where corruption is reasonably controlled requires that all technical-institutional components like laws, regulations, procedures, surveillance and enforcement, judgment, reward and punishment be in place. This requirement is extremely important, and much attention has rightly been focused on it. Public and private institutions may have share many common corruption challenges. Any large-scale organization or a country that interacts with different kind of people, multiple suppliers and customers must ensure that politicians and / or employees do not take advantage of their entrusted powers and solicit bribes. Codes of conduct and promoting integrity alongside effective customer complaint, whistle blowing and financial tracking systems have been applied successfully in both areas of governance. Myanmar and Iraq are considered top most ranking corrupt nations in the world. Myanmar is located in the eastern part of the Asian continent, in a geographical area rich in natural and mineral resources, which provides significant economic potential. Hundreds of government officials were done on charges of corruption. Since then, this topic has remained highly politicized, limiting the room for third parties to address this issue. It does, however, remain pressing: in November 2004, the non-governmental organization Transparency International published its annual corruption perception index, with Myanmar ranking among the five worst countries surveyed (on 142nd place out of 145). In Iraq corruption is also rampant. Estimated confirms that the official corruption costs Iraq $5-7 billion per year as estimated by one senior Iraqi official. Notable steps have been taken: Iraq has a functioning audit board and inspectors general in the ministries, and senior leaders including the Prime Mi nister have identified rooting out corruption as a national priority. But too many political leaders still pursue their personal, sectarian, or party interests. There are still no examples of senior officials who have been brought before a court of law and convicted on corruption charges (Transparency International, 2008). In contrast, Denmark and Singapore are two of the least corrupt countries in the world according to transparency International. It has a highly developed market-based economy, which historically revolves around extended Centerport trade. Denmark is a country with high morale populations and effective leadrers (Stone Bain, 2008). Singapore has been rated as the most business-friendly economy in the world with thousands of foreign expatriates working in multi-national corporations. Singapore has a successful and transparent market economy (Mirza, 2006). Companies which are government-linked were dominant in the local economys various sectors, such as utilities, media, and public transport. Singapore has been consistently rated as the Asias least corrupt country and one of the worlds ten most free from corruption as reported by Transparency International (Transparency International, 2008). Myanmar and Iraq are considered as developing countries. In the last few years, corruption in the developing countries has come to the forefront of development thinking. Tight fiscal situations at home have made donor countries focus more on the impact of their aid to developing countries, raising concerns among bilateral and multilateral aid agencies over the effect of corruption on economic performance. At the same time, the trend towards democratization has made developing country government subject to a greater scrutiny and accountability from a broader segment of general public. Despite this, there remains a significant degree of ambivalence among many policy makers about the real impact of corruption in the economy. This less-than-enthusiastic response is due in part to the to the so called corruption puzzle. In a number of Asian countries, high rates of growth had been sustained over a long period despite high levels of corruption (Transparency International, 2008). Empirical evidence indicating that corruption impedes growth and investment has begun to emerge, with academics and scholars increasingly devoting more time to study the surrounding issues. These findings parallel to the emerging concerns of politicians and policy makers around the world about the deleterious effects of corruption on economic performance and increasing efforts to try to address the underlying causes. Corrupt actions are often rationalized by those who perform it. Two forms of corruptions that are partly susceptible to such rationalization are noble cause of corruption. In case of Myanmar, corruption induces performing actions for good end. Given the goal motive, this form of corruption is highly susceptible to rationalization. Unfortunately such actions notwithstanding the good motive are tainted. In particular, although the person who performs such actions might believe that he/she is doing what is right; this belief is a mistaken one (Svensson, 2005). The action is morally wrong. In contrast, Iraq is operating in Trans cultural and religious setting which is often finds it easy to rationalize away their engagement in corruption by invoking arguments, such as When in Rome, Do as Romans do. When one is operating in an environment in which one has, so to speak, no moral stake, such arguments can be tempting. This is especially the case if the condition conducive to corruption, fo r example, power imbalances, are in play. Unfortunately, the rationalizations for corruption that arise in transcultural setting do not in fact justify it (Miller et al, 2005). What values are needed to complement the system in Myanmar and Iraq or other corrupt nations? Obviously, a comprehensive answer is outside the scope of this paper. However, a core syndrome needs to be identified and focused on. That syndrome will include rationally decision making that leads to action which is effective in achieving purposes which it is intended to achieve. Important decisions of dubious rationality, or neglect of rational ones, are often made even if no corruption may have been intended (Svensson, 2005). The recurrent disasters involving seagoing vessels and loss of lives and property in the burning of discotheque place and hotel in recent years in these nations are at least partly results of lack of rationality in decision making. The rural character of Myanmar and Iraq as compare to Singapore and Denmark did not change significantly until the 1990s. In the meantime, the particularistic values and norms that have worked so well since the ancient times can continue to be emphasized over other values and norms, and help maintain public order (Kaing, Thet Aye 2005). However, in the rapidly urbanizing society, the same personality values and norms are no longer sufficient to cope with the decision making situations involving large concentrations of diverse populations. Commitment to more impersonal or universalistic norms has become necessary. It is evident, however, that at this historical juncture, Burmese or people of Myanmar generally continue to fit decisions to the more familiar and comfortable personalistic framework (United Nations, 2004). Ultimately, corruption adds inefficiency into a system and increases the risk for investors. Consequently, market prices are higher due to increased risk and increased transaction costs. Deep rooted corruption causes companies to rely on paying bribes as their main source of competitive advantage (Klitgaard, 2000). This is opposed to innovating, taking risks and becoming more efficient. Being morally corrupt is the lowest form of existence as they take advantage of the weak and most vulnerable in society through the pursuit of personal gain. By applying stakeholder theory, morally corrupt people have total disregard for the well being of people, and have no concern for the future well being of society. By applying strict principals, all forms of corruption are immoral as it does not benefit society over the long run. However, this should not be used as an excuse to partake in corruption indefinitely. One can morally partake in corruption provided that there is a net positive benefit for the society, and that the corrupt act is made with the intention of reducing overall corruption (Svensson, 2005). According to Stanford Encyclopedia of Philosophy (2009, p.4), morality refers to an ideal code of conduct, one which would be espoused in preference to alternatives by all rational people, under specified conditions. However, corruption is a highly subjective matter which depends upon persons, cultural, ethical, moral and religious backgrounds. A perception of person regarding the corruption also depends upon their understanding and education of corruption. Hence, it is difficult to define an ideal code of conduct that all rational people will abide by, even under specified conditions. In many cases, the seemingly black and white scenario has large portions of grey. Morality is a term that spans many meanings (Miller et al, 2005). It is shaped the countrys cultural, moral, ethical and religious backgrounds. Despite religious diversity throughout the world, morality at its core is shared by all of human kind. Religious scriptures and ancient philosophy echo similar beliefs; that we sh ould love our neighbor and take care of others less fortunate. Thus, these implications are commonly variable of corruptions in any country, specifically Myanmar and Iraq (Klitgaard, 2000). By removing corruption, we are creating value. In reality we sometimes need to partake in corruption in order to make progress. Just as important a component of this desired values outcomes, and the value that will be seen everywhere, is universalism. These are the foundations of countries with high level of integrity and low level of corruption. The concept is taken from Parsons and is interpreted in practical terms to mean valuing principles that apply to the larger group as opposed to select few. From these values is a derived lower level norm that regulates relationships among individuals in the larger society. These lower level norms include the application of the merit principle in the hiring, firing and promotion of personnel in organizations; the application of the first com first served principle in the making or delivery of claims; the use of rational criteria in delivering services to members of general public, in accounting for use of power and others (Svensson, 2005). There are variety of are possibility of ways to lessen the corrupt and unethical behaviors. In Denmark, there are programs implemented to monitor the budget allocation of each government officials as well as the organized system of Singapore. Unlike Myanmar and Iraq, there are no specified programs regarding these issues. There are some visible programs but it was inefficient in combating the corruption which is commonly committed by higher officials of the government. The members of the population, who recognize the importance of integrity and values, if they have not internalized this as central part of their value system and repertoire, may be in the minority at the present time, but they are there. The success of Singaporean working in organizations is one indication, as is the operation of such enclaves as the main factor for their economic success and unrivalled progress in Asia. What seems to be called for is the leadership and support that they need at the same time that efforts are made to increase their progressions. An effective leadership system that will promote progress and economic sustainability will be a great help, but so will more direct action at inculcating the appropriate values itself (Mirza, 2006). The ethical dimension of corruption activity does not consist simply of constraining rules and minimal standards, and certainly no simply of and legally enforceable rules and standards. In the first place, many principles and standards are not legally enforceable but are nevertheless highly ethically desirable. Anti-corruption system is one of the ways to lessen these deleterious activities. Anti-corruption system can be thought of as being both predominantly reactive and predominantly preventive. Naturally, the distinction is somewhat artificial, since there is a need for both reactive elements, for example, investigation and adjuration, as well as preventive elements, for example ethic training and transparency, and an adequate ant-corruption system. At any rate, there is a proposed to concise anti-corruption system under two broad headings, the reactive and preventive approaches. There are also subheadings in these approaches; promoting ethical behavior, corporate governance and p rerogative and transparency (Klitgaard, 2000). Denmark and Singapore employed different approaches from Myanmar and Iraq, their approaches to combat corruption in their country this is the main reason why there is very relatively small rate of corruption in these two countries. They used criteria in each approaches employed, manner of implementation, and results of the activities undertaken. The typologies and the specifications and examples given are worth looking at. In Denmark, leaders are being non institutional, characterized by spontaneity among adherents. It takes highly emotional and moralistic stance against corruption. Singapore value changes in actors of various institutions as a goal. In fact, in the approaches they implemented, the emphasis is on moral and legal, there is no provision for effective technical, legal and bureaucratic means in combating the corruption. These countries also emphasizes the use of institutional means to achieve stated goals, including legislative measures, anti-corruption bureaus and anti -corruption campaigns aimed at securing the cooperation of the public in the drive of corruption. This approach is led by their powerful rulers in their society and utilizes constitutional legal, organizational and procedural means to achieve a very high level goal; the elimination or eradication of corruption (Miller et al, 2005). REFERENCES: Transparency International (2008). Global Corruption Report 2008. Cambridge University Press. Svensson, J. (2005). Eight Questions about Corruption. Journal of Economic Perspectives-Vol.19. Stanford Encyclopedia of Philosophy. Religion and Morality. 2 June 2009. http://plato.stanford.edu/entries/religion-morality Miller, S., Roberts, P., Spence, E. (2005). Corruption and Anti Corruption: An applied philosophical Approach: New York: Prentice Hall. United Nations. (2004). Strategic Framework for UN Agencies in Myanmar. Country Team in Myanmar Yangon: UN Country Team in Myanmar Kaing, Thet Aye (2005). New Government Accuses Super Power of Role in Yangon Bombings. The Myanmar Times. Klitgaard, R. (2000). Corrupt Cities: A Practical Guide to cure and prevention. Oakland California; ICS press Stone,A. Bain, C. (2008). Denmark?; Denmark delineated: sketches of the present state of that country? Mirza, H. (2006). Multinationals and the growth of the Singapore economy?

The Effect of Racism in Schools on Education Essays -- Papers

The Effect of Racism in Schools on Education I recent years there have been considerable interest in the educational performance of ethnic minorities. A number of studies have been carried on this issue, a common example is the government - sponsored Swann Committee report Education for all. This report carries out research on different aspect on educational performance, and one aspect that stands out form all is, racism in school. Although the precise findings of studies have varied, most have found that, overall, ethnic minorities (blacks, Asians and other nationalities) tend to do less well than other members in the population. The Swann report found important differences between ethnic minorities' children and white children. From a survey of five LEAs it was found that Asian children did almost as well as whites or 'others'. Asians were slightly less likely than 'others' to get five or more graded results in GCSE exam or any other sort of important examination qualifications. Although the Swann report did stress the importance of the Asian community doing quite well, a certain type of Asian community known as the Bangladeshi did particularly bad, was this, the result of racism or the result of ignorance. The Swann report found out that the average performance of West Indians was considerably worse than that of whites. A shocking five percent of West Indians passed an A Level and only one percent went off to university. All though not is all shocking a large percent of ethnic minorities between the age of 16 and 19 were in full time education. This can be backed up by Jones (sociologist) suggestion. Jones suggested that th... ...wn in subservient social roles such as servants. Coard claims that the people whose lives are studied and acclaimed are white. Black culture, music and art are all conspicuous by their absence from the curriculum, (IV) The attitudes to race conveyed in the classroom are reinforced by the pupils outside it. In playground arguments white children may retaliate by describing West Indians as 'black bastards'. Research has shown that teachers expect black children to fail and this produces a self fulfilling prophecy in which they live up to the expectation they have been labeled with. Not only are black children played in lower sets, they themselves believe that they are certain to fail. Research shows that a majority of West Indian children are portrayed by their teachers as underachievers with disciplinary problems.

Red Badge of Courage Essay: Battle for Adulthood :: Red Badge Courage Essays

A Battle for Adulthood in Red Badge of Courage    Throughout the novel, The Red Badge of Courage, written by Stephen Crane, a theme is portrayed within a battle that takes place during the Civil War. It is that each person must find the courage to win his or her won battle for maturity or adulthood. A soldier, who is also the main character, Henry Fleming, exemplifies this theme.    Henry Fleming begins as an immature soldier who enlists in the army without knowing a reason why. Henry has a romantic view of the war, and expects it to be glorious: â€Å"They [battles] might not be distinctly Homeric, but there seemed to be much glory in them. He [Henry] had read of marches, sieges, conflicts, and he had longed to see it all.† Henry obviously lacks maturity because he was very determined to enlist in the army, but tries to blame the government for being at war.    Henry starts to realize that there are no heroes and that there are no individuals: â€Å"He had grown to regard himself merely as a part of a vast blue demonstration.† Therefore he is beginning to fight the battle within himself into adulthood. Henry looses some of his selfishness and gains concern for others, another stepping stone: â€Å"He felt the subtle battle brotherhood more potent even than the cause for which he was fighting.† Henry deserts a dying soldier and runs from a battle, but recognizes that running away was wrong. It isn’t a mature action, but he is mature to realize the magnitude of running.    With the knowledge of his past mistakes, Henry goes into battle without thinking about the past and fights heroically. After a general makes a derogatory remark about Henry and his comrades, it reveals Henry’s change of attitude. He accepts the comment without rebellion and fights with courage. Because of the success of fighting bravely, Henry has the self-esteem to deal with his mistakes as an adult. As a mature person he can learn from his mistakes.

Twa Task

All the University in the world are focusing on environmental protection and improvement [1]. We are living in an era of Industrialization. We are consuming a lot more products In our lives as compared to our ancestors; this is to improve the quality of life by saving time, facilitating ourselves and much more. Most of the world Industries are grown with certain pace and they have achieved maturity with the time. Then there are many environmental control authorities and regulatory authorities which enforce certain environmental protection laws upon them.But unfortunately as far as Environmental protection is concerned Information and Communication industry is growing at such a faster pace that such kind of controls re not fully implemented or observed by CIT industry[2]. This is a huge danger for the world environment. The main focus has mostly been upon competing with the competitors and introducing latest technology as fast in the market as possible. It is also consuming ever great er amounts of energy and is therefore the source of significant CA emissions.According to calculation IT now causes the release of as much carbon dioxide Into the atmosphere as nearly 320 million cars, worldwide IT help curb this alarming trend. Simply by consistently Implementing known energy- conserving approaches, the CA emitted by IT systems can be nearly halved Green IT† is what analysts, manufacturers and providers call all IT solutions that save energy at business organizations. These include hardware, software and services. Where hardware is concerned, energy-efficient desktop PC's, thin-client architectures and data-center hardware offer answers, and so do energy supply and cooling systems[2].In the software and service area, there is significant potential In fertilization, in solutions for dynamic capacity management and data-center planning, and in storage-system off shoring. You cannot purchase or order Green IT directly, but intelligent solutions re available that contribute to sustainability. And with the Increasing convergence of IT and telecommunications, It possible to take the Green concept a step further[3]. The positive approaches of Green IT need to be combined with solutions from the Green ‘CT.Green CIT extends to other, less commonly considered aspects of the entire life cycle. This includes experienced procurement, employee behavior, running data centers on sustainable generated energy, environmentally sound disposal of used electrical equipment, and as much recycling as possible. CIT is not intrinsically â€Å"green†, because it itself consumes energy and raw materials. But CIT can be leveraged to make business processes more energy-efficient[l]. The main focus has mostly been upon competing with the competitors and introducing latest technology as fast in the market as possible.So the preliminary part of the project share some challenges which CIT Environmental control is facing on creating a Green CIT environment i n the University. The goals of this project is to introducing and promoting Green Information and Communication Technology in the university[2]. This step of the project would then easily be implemented in the industry and all over the world. Due to rapid increase in Communication and computing technology we tend to face a very big issue of regular advancements in technology and the older technology tends to grow obsolete.This creates a lot of waste material, as most of the University is not creating communication and computing technologies in a way that they can be recycled. Definitely there is a lot of competition in the market and it would increase the production cost of the industry which is focusing on recycling as well[2]. But we intend to Join hands with the environmental control organizations and regulatory authorities which are working to aka it a compulsion on industry to produce recycle able products. Then we will also focus that this industry must make low power consumpt ion CIT products.Also in their manufacturing they must also work on reducing their power consumption by making their systems efficient. As it focusing on conserving energy and making environment better, it include the advantage of using CIT products in the environment for telecommuting[3]. Review :Current technology – Recently applied technologies which reduces CA A closer look at how CIT causes carbon dioxide emissions reveals two main culprits: University office desktop environments and data enters. Most of ‘CT-related CA emissions are caused by desktop computers and their monitors, and another by servers and cooling systems.We will therefore begin by discussing ways for Green CIT to reduce CA emissions in University office environments and in data centers[3]. Green CIT not only protects the environment by reducing the emissions emitted by CIT itself. When effectively and comprehensively applied, it can contribute much more. In University office environments, there is a long and established practice of replacing conventional means of communication with CIT applications. To a large extent, hardcopy letters (along with the corresponding paper consumption, transportation and logistics) have been replaced by e-mail and testing[l].Further savings potential lies in the creation of electronic work processes. This includes digitizing, archiving and distributing documents by e-mail or uploading them to a website making them available for all downstream operations. This generates savings in terms of paper, energy consumption and CA. Today, innovative solutions are available for high-tech â€Å"pens† integrated digital process, saving process costs and preventing information loss[2]. Thin clients are much more energy-efficient than conventional desktop PC's, reducing CA emissions and the cost of purchase and operation.Replacing a desktop PC with a thin client reduces the CA emissions of the desktop system. Thin clients are much lighter and more comp act, and consist of fewer components – yielding benefits with regard to transportation, disposal, and consumption of materials. Green CIT can improve business processes that are not directly involved in ‘CT, and dramatically lower CA emissions throughout the process chain. It is here that its true potential becomes apparent that CIT now accounts for global CA emissions. But Green CIT can also help significantly reduce the CA emissions not caused by CIT[2].Rationale and Systems Analysis According to the IT director of the University of Bradford, the campus provides IT facilities for the students use, the university has an assets of almost 3000 PC's and three servers which are used in a daily basis which unfortunately are not used appropriately and efficiently. However, at peak times the students use around 1 500 PC's, which basically is half of the PC's of the university. So in order to avoid power loss, an assets management system will be designed and applied within the campus.On the other hand, university servers use up to 27. 1 % of the campus's energy, so a new cooling system is already being installed in order to reduce the energy costs and the CA emissions. In addition to that, the estimation of the base load is around 20% of the energy which is considered highly utilized; a vast amount of the energy worn needs a major reduction as much as possible. Therefore, an investigation will be undertaken to identify different solutions which participate in the base load reduction . An initial plan will be designed to be employed within the campus.Since he students are considered a major contributor towards the energy usage. An awareness event will take place in the campus to help students understand the concept of the green technology. During this week simple energy efficiency programs will be undertaken. While the campaign is taking place the energy usage will be monitored and observed before and after the event. Currently the biggest problem rising is that the number of students enrolled in the university is around 15000 students and assuming 90% of the students have their own PC or laptop.So the idea of applying the cloud computing will save an enormous amount of money and at name time it will reduce the CA emissions. So the idea of cloud computing offers an efficient way of solving this problem. A model building will be chosen and modifications will be applied to this building, the energy usage of the building before the modifications will be compared to the usage after the modifications. The results will basically show whether its sufficient to apply them or not.Solution research 1) CIT devices can be made power efficient Each and every University office desktop offers opportunities to save energy. This involves both energy-efficient use of equipment ND the use of energy-efficient equipment. Even without deploying any new workers to change their habits. University policies can be developed and published making employees awa re of how they can contribute through the use of hibernation mode and power-management software for hardware, duplex printing, and generally avoiding unnecessary printouts.The latest generation of energy-conserving desktop PC's, thanks to their better power units, storage technology and processors can slash energy costs[2]. State-of-threat LCD screens and thin-client architectures offer further opportunities for savings. The consistent, enterprise-wide deployment of energy-efficient and cost-saving equipment is a major challenge. Outsourcing the entire office CIT landscape is one way to implement Green CIT – by minimizing the number of desktop computers and printers and maximizing their efficiency.University typically use a large number of, often different, devices for printing, faxing, copying and scanning. This complex landscape often leads to a lack of transparency, and there are often no accurate figures available on the total cost of operation[3]. However, the ratio of u sers to devices can be significantly improved by analyzing the rent infrastructure and actual user requirements: then changes can be made to the type, number and position of devices, ensuring better use is made of available capacity, and reducing stand-by and idle times.Thin clients are much more energy-efficient than conventional desktop PC's. Thin clients are much lighter and more compact, and consist of fewer components – yielding benefits with regard to transportation, disposal, and consumption of materials. Just getting to and from the University office inflicts considerable burdens on the environment: millions of commuters spend hours every day on roads, spewing immense amounts of exhaust gases into the atmosphere[3]. 2) CIT manufacturing industries can save a lot of money CIT devices consume 80% of power of their whole life during their manufacturing in the industry.Only 20% of the power is consumed during their operational life and industry is more focused on saving s ome percentage of this 20% power. Indeed it is of key importance but we are more concerned about the 80% part as by deploying energy efficient machinery we can save a lot of cost, by conserving energy. Manufacturing of CIT devices consumes a lot of natural resources like fossil fuels, water and chemicals. And due to regular advancement in the CIT industry a device has a life cycle of one to two years hardly[2]. Then in becomes obsolete.This then leads to another problem, there is hardly any professional recycling process or method introduced by industry so that the precious chemicals, iron, copper and other materials used in manufacturing can be properly disposed or recycled to conserve energy and resources. Then instead of throwing away or recycling these products we can focus on manufacturing and introducing products which can support and handle future development[l]. They can be upgraded. Manufacturers can get back this extra cost on recycle able design by getting benefit from re cycling. But they only face time limitations due to high competition level.However there are regulatory authorities which are now focusing on implementing environmental laws on CIT manufacturers[2]. PER, extended producer responsibility is a concept owe a lot of responsibility in protecting environment from the wastes of their industries, high energy consumption and much more. 3) Consumers can become a force, by purchasing recycle able and upgrade able product But we as consumers owe a good share of this responsibility. We must purchase those CIT products which are recycle able, which can be upgraded, which consume low power and which are made in an energy efficient environment.In the university we will introduce only those CIT devices which are up to the mark on above mentioned standards, so that there might not be any harm to the environment. Then we will do research on efficient energy consumption products. We will try to make devices which utilize very little energy [2]. Also we will focus on understanding the up gradation possibilities of less efficient industrial machinery in CIT industry. We must focus on the fundamental sign of the CIT products, because it is only at this stage that we can design devices which can be upgraded and recycled.We will try to limit as much as possible the use of toxic chemicals in the manufacturing of CIT products because if not recycled, these chemicals destroy our environment which is largely the case at this time. And we must understand that it is a global responsibility, this message from our research must prevail in the whole world[3]. We must try to educate people about the adverse effects of these bad practices of unjustly dumping CIT devices. IT devices and data enters in different organizations and our university as well consume a lot of energy and sometimes it is more than what is displayed on the devices due to older devices.Therefore power efficiency is now given key factor in calculating the efficiency of the da ta centers. Project Deliverables Increasingly, CIT solutions are used to support University processes. These solutions can streamline University processes and have enormous potential for reducing CA emissions, because they improve the utilization of resources and allow them to be shared. CIT also permits in-depth monitoring of energy consumption and CA emissions throughout the value chain, so University processes and organizational structures can be enhanced accordingly[2].The potential savings are particularly great in University with extensive, complex supply chains. But CIT can also have a major impact on supporting processes, I. E. Via resource utilization in offices. In University with complex supply chains, efforts focus on reducing transportation. Intelligent transportation systems combine an array of applications to cut fuel consumption by up to 30%, in conjunction with much lower CA emissions – but with no loss in service quality. These systems are based on detailed, up-to-the- minute traffic information captured by an extensive network of IT devices and transmitted by telecommunications equipment.Route planners and navigation systems then calculate and continually update the best possible route for vehicles and payloads[3]. The aim is to minimize the distances traveled, and the corresponding time, fuel costs, and to a large extent, CA emissions. Other applications, such as precise satellite RIFF-assisted positioning solutions, enable more efficient utilization of entire vehicle fleets. These technologies can also be applied to water and air transportation; for example, streamlining airfreight operations could reduce fuel consumption by more than 10%. Racing systems, with nationalization through reduced charges, can encourage the use of low emission trucks[l]. Increasingly precise and realistic computer-aided simulation and design tools (CAD) are gradually eliminating or at least minimizing the necessity of physical prototypes. Here too, greate r attention can be paid to software- aided energy-saving functions for users. At the level of the vehicles themselves, automatic start-stop functions briefly switch the engine off when the clutch is snagged.Many non-core, cross-industry processes can be positively influenced by ‘CT. Energy management is a particularly effective approach. Ideally, energy efficiency should be a key consideration from the outset, I. E. When planning and designing new offices and production facilities, giving rise to â€Å"smart buildings†. But innovative energy management systems can also be retrofitted at reasonable expense in existing buildings, adjusting the power consumption of lighting, heating and cooling systems in line with actual requirements.For private households, various providers re now developing smart metering and home management systems that comply with the EX. energy efficiency directive by identifying powering systems and opportunities for savings, and by influencing cons umer behavior[2]. IT plays a key role in applications of this kind. In practically all businesses, paper consumption could be slashed by greater use of e-mail, e-billing and electronic archiving systems.Especially at large national and international organizations with central archives, automated workflow can dramatically accelerate processes by eliminating physical transportation and the associated traffic[l]. Currently, there are many data centers in the University. Green CIT could realize enormous savings in all of these data centers. Widespread use of state-of-the-art energy-efficient technologies and solutions, such as fertilization, could push the power consumption of data centers down to almost halving it in Just few years [2]. Another crucial factor is load.Servers in well-organized environments with UNIX machines operate at Just 35 to 45% of capacity; with Intel servers, the figure is even lower, at 15 to 30%. On average, only 25 to 40% of data storage capacity is used. Util ization rates an be considerably improved by consolidating servers, storage systems and entire data centers – saving a great deal of energy. Fragmented legacy data-center landscapes can be consolidated to Just a few data centers. Outsourcing often plays a major role. An IT service provider, for example, can operate a small number of large, efficient data centers that support multiple customer organizations [3].It is also possible to make better use of data-center resources, for example, by fertilization and by deploying shared-services solutions. This involves creating logical systems that are independent of the underlying physical assets. Instead of being dedicated to specific purposes, resources are shared and therefore used more efficiently. The ability to intelligently assign and administer resources is a key function within any fertilization solution. It ensures maximum flexibility in resource allocation. When servers are only operating under part load they still consume nearly as much power as fully utilized ones.Fertilization makes it possible to shut down servers that are largely idle, maximizing savings. Another possibility is for enterprises to access networks. Servers can share resources, and state-of-the-art fertilization technology ND standardization can be leveraged to maximize utilization of existing hardware Project Timeline Comparison between the traditional building and the building after modification It is observed that by implementing new model energy-consumption savings at University is around 50% and by using different technology energy-consumption savings at University can be reduce to 25% in comparison to traditional model.Figure 1 : Comparison of Energy consumption between traditional model and new model Figure 2 : Comparison of Energy consumption between traditional model and different model Conclusion The issues of climate change and environmental protection have been debated for decades. Now they have become part and parcel o f day-to-day business reality; Universities are accepting responsibility for the CA emissions they cause and are taking action. CIT has, in many ways, a vital role to play.It accounts for about two percent of global CA emissions, which must, and can, be curtailed. In addition, through the intelligent use of CIT solutions to support University processes in other Universities, it can help curb the other 98 % of emissions. The deployment of Green CIT makes a valuable contribution to protecting the environment. Many of the approaches presented in this paper are associated with lower costs, especially those that target energy consumption. They also improve a University image, and noticeably raise students and employee satisfaction.And as policymakers increasingly address climate change, new legislation and regulations on CIT can be expected in the near future. So Universities are well-advised to act now. Some approaches are already being practiced now. Every University has its own unique situation, and the first step should therefore be to analyze it. We have already ascribed possible approaches for University processes, data centers and office environments. Quick wins can be achieved by harvesting â€Å"low-hanging fruit†, for example by encouraging more energy-efficient use of office equipment or duplex printing.

Electrical and Electronics

This effect can be used to build an electric power generator, such as the one described in this paper. A coil attached to a shaft spins within the magnetic field ofa â€Å"U† shaped magnet. Three conveniently designed conductive disks allow the electrical load of the generator to be fed either with alternating current or direct current. the loop terminals is sinusoidal with zero mean value (Fig. 2). Its frequency is equal to the number of revolutions per second executed by the loop. Each terminal of the loop is connected to a metallic ring. The contacts with rings are made by means of fixed brushes.If the brushes are onnected to an electrical load, an alternating current will be established in the circuit. Keywords. Alternating Current, Direct Current, Generator, Magnetic Field, Induced Voltage. 1. Introduction Although diverse forms of energy (mechanical, thermal, chemical etc. ) can be converted into electrical energy, the expression electric generator is reserved, in the in dustry, energy into electrical energy. The generators that produce direct current (DC) are called dynamos and the ones that produce alternating current (AC) are called alternators.The device described in this paper is a generator capable of supplying an electrical load ith the desired type of current: alternating current or direct current. s AC output Figure 1. AC generator. 2. AC generator principle of operation. Figure 1 illustrates the principle of operation of an AC generator. A wire loop rotates within the magnetic field generated by a magnet, which induces an AC voltage between the loop terminals. The periodic change of the voltage polarity is due to the change of the position of the coil relatively to the magnetic poles.The amplitude of the voltage depends on the magnetic field strength and is also directly proportional to the rotating speed [1, 2, 3, 4]. If he magnetic field is uniform and the rotation speed is constant, the voltage induced between Figure 2. AC generator out put. 3. DC generator principle of operation. The described AC generator may be transformed into a DC generator, substituting the contact rings by a mechanical switch. As illustrated on Fig. 3, a simple switch may be done with a metal ring divided into two isolated halves (segments), which are mounted in the axis.This type of commutator is denominated collector. segment of the collector. When the loop rotates, an AC voltage is induced in the coil, exactly as in the AC generator. But, before reaching the oad, the induced voltage is transformed into a DC voltage by the collector (Fig. 4), which works as a mechanical rectifier. The contact segments of the collector move to a different brush each half turn of the loop, keeping a unidirectional current flowing through the electrical load of the circuit [1]. The rotation speed has to be well determined so that the final result is the expected one.As stated before, the rotation speed influences the induced voltage amplitude and frequency. à ¢â‚¬Å"U† shaped strong permanent magnet, shown in Fig. 6. The most challenging part to build was a contact rings and collector unit (Fig. 7). It was ade of three printed circuit board disks, coaxially mounted on the rotating axis. The two smaller disks were kept with their entire conductive layer and were intended to supply the generated AC voltage. The conductive layer of the larger disk was cut into two halves, in order to implement the collector, which mechanically rectifies the generated AC voltage.Figure 5. Coil with iron core. DC output Figure 3. DC generator. Figure 6. Permanent magnet used to induce a voltage in the coil. Figure 4. DC generator output. 4. Generator' description Instead of a simple loop, an iron core coil with 1241 turns of O,16mm2 varnished copper ire was used. The iron core and its windings are shown in Fig. 5. The magnetic field used to induce a voltage between the coil terminals was provided by a Figure 7. Three coaxial printed circuit board disks w ith coil on top. 45 Fig. 8 and Fig. 9 illustrate how the rings and collector unit was built in a more comprehensive way.In Fig. 8, a cross-section of this unit is shown, revealing how electrical connections were made: one terminal of the coil was connected to one of the smaller disks and to one of the halves of the larger disk (collector); the other terminal was connected to the other smaller disk and to the ther half of the larger one. Fig. 9 shows a panoramic view of the assembly and the generator outputs responsible electrical load. In order to make the generator operate properly, the DC output brushes positions must be displaced by 1800 from each other.The AC output brushes may be placed anywhere on the respective disks. coil Copper wire Insulator Copper Solder Figure 8. Connecting the coil to the three coaxial printed circuit board disks. power could be easily measured, some sort of mechanical power meter was needed and it was not available. There are always mechanical and elec trical power losses in the process of ransforming mechanical energy into electric energy. Mechanical losses may be reduced by lubricating friction points. The generator was put to rotate at 3000RPM; the measured induced voltage was 1,2V peak-topeak, with a 50Hz frequency. . Conclusions Spinning a wire loop within a uniform magnetic field in a convenient fashion induces a voltage between the loop terminals. Rotation speed influences the induced voltage amplitude and frequency. If an electrical load is connected to the loop terminals, a current will be established in the circuit. The current generated by a basic electrical generator is alternating current. If the generator s intended to supply direct current, it must have a device working as a mechanical rectifier: the collector.A device capable of generating both AC voltage and DC voltage has been presented. A coil attached to a shaft spins within the magnetic field ofa â€Å"U† shaped magnet. Three conveniently designed condu ctive disks allow either with alternating current or direct current. This device is very useful to illustrate the principles of electrical energy generation. It also shows the main similarities and differences between AC and DC generators: the working principle is the same for both machines, but the AC generator has contact rings and the DC enerator has a collector.