The Aeneid By Virgil Aeneid - 1689 Words

Virgil’s Aeneid was written in a time of political and social transition in Rome, which influenced the epic poem in a political way. Aeneid was written only a couple years after the civil war where a lot of people had started to lose faith in the greatness of Rome. Virgil’s intensely political poem concentrates on the theme of Rome’s greatness and particularly with the reign of the new emperor Augustus Caesar as the re-founder of glorious Rome. Throughout the poem Virgil used prophecies to make connections between the founding of the settlement (later to be Rome) by Aeneas and Rome’s culminating point with Augustus, who, according to Virgil, descends from Aeneas. Virgil uses this poem as propaganda for the new emperor by creating a parallelism between Aeneas, destiny, and Augustus at the same time that it uses a hidden ironic critique of the new regime. In the Aeneid, Virgil’s main concern is the creation of an etiological myth that unifies Rome’s history and culture. By using established etiological myths of Rome, Virgil fits Aeneid perfectly in the chronology of these legends. Virgil was able to create a story that traces back the Roman race all the way to the Trojan race. This search of genealogy in Roman race and culture is a political attempt to give justification to the existence of the Roman Empire and to its transcendent glorification. Throughout the poem we can see there is a divine force that pushes Aeneas to complete his mission; making the empire’s existenceShow MoreRelatedThe Aeneid Of Virgil And Virgil1512 Words   |  7 PagesIn The Aeneid of Virgil, Virgil places great importance on family relationships and respect for one’s ancestors. Aeneas is shown to have great respect for his father which can be seen even after his father’s death. Homer, in The Odyssey, has the lack of a real relationship between Odysseus and Telemachus due to the fact that Odysseus has not been in a majority of Telemachus’ life. On the surface, The Odyssey and The Aeneid of Virgil and their father-son relationships may appear different but theyRead MoreThe Aeneid by Virgil636 Words   |  2 PagesThe Aeneid, written by Virgil, was written in Rome between 30 and 19 B.C. Virgil wrote many of his writings during the time of Octavian, the estranged nephew to Caeser. During the beginning of the times of Octavian and the time of these writings Rome was in a state of civil war, which later turned into the most peaceful place in the world. Many people were torn from their homes and new boundaries were created. It is important to know the culture and gender roles of the people, the person in powerRead More The Aeneid by Virgil Essay2075 Words   |  9 PagesThe Aeneid by Virgil In Virgil’s famous text The Aeneid he writes about the history of the coming of Rome and the journey of its Trojan founder, Aeneas, from the wreckage of his old home at Troy. While this text is extremely supportive of the greatness of the Roman Empire, it also has a distinctly private second voice that talks about loss. We also find that in Confessions by Saint Augustine the author at times addresses God very personally, and at other times does not refer toRead MoreThe Aeneid by Virgil1507 Words   |  6 Pagesvalues that was deemed â€Å"good† during that period. One of the values that was enforced during Vergil’s time by Augustus was patriotism, which in the Aeniad’s context is prioritizing between personal satisfaction, or the greater good. In book 4 of the Aeneid, the character Aenias and Dido represents the two opposing values, in which Aenias represents the greater good, while Dido represents the personal satisfaction. For example, Dido was willing to sacrifice her honor and the respect of her people forRead MoreThe Aeneid By Virgil. Johan Sunesson1701 Words   |  7 PagesThe Aeneid by Virgil Johan Sunesson The Aeneid, written around 20 BC is widely considered to be virgil’s greatest work. The Aeneid is a epic poem, following the adventures of the great Aeneas, as well as the central role he played in the founding of the Roman State. The character of Aeneas had been a known legend long before the Aeneid was composed, having been a character in the Iliad. Virgil took the myth of Aeneas and tied him together with the founding of the Roman State. Aeneas is bothRead MoreThe Characters Of Virgil And Homers The Aeneid973 Words   |  4 Pagesbefore them. Virgil, a Roman poet alive during BCE, is considered Rome’s greatest poet. In one of his famous works, The Aeneid, Virgil showcases patriotism in his work. In The Aeneid, Virgil makes a comparison between the Romans and their predecessors of similar cultures, the Greeks. He uses parallels to Homer to make an argument for his point. Overall, the characters of Aeneas and Odysseus are representations of their separate cultures and through the comparison of them as heroes, Virgil attempts toRead MoreThe Aeneid By Virgil Vs. Aeneas Essay1506 Words   |  7 PagesIn The Aeneid by Virgil, the main character Aeneas is born of Venus; he is the pious, loyal hero of Rome from Troy. The idea of a hero in Virgil’s epic poem was built upon a dual pillar structure of piety and loyalty. The ideal version of piety is exemplified in Aeneas, who often sacrifices his own loyalties t o appease the gods. The other pillar that the book stands upon is loyalty to friends, family, the gods, and the future. These two pillars often clash and Aeneas must choose one over the otherRead MoreAnalysis Of Virgil s The Aeneid 996 Words   |  4 Pagesillustrates the concept of pietas in Virgil’s epic, The Aeneid in several different ways. Pietas is one’s own devotion to public duty or virtue and is only attainable through personal suffering and loss. The center of Aeneas’ pietas is his duty, to find Rome, which goes onto become a great empire. He has a few different things that motivate him; one of these things are that Rome is to be passed down to his son, another is his devotion to the gods. Though Virgil is very duty bound he may get thrown off his tracksRead MoreAnalysis Of Virgil s The Aeneid1791 Words   |  8 Pagestopic all through Virgil s The Aeneid. It assumes a critical part as a key character attribute for the people that we experience. In the event that one takes the hero Aeneas aside and breaks down his tireless adherence to his own fate, alongside his unending sympathy toward the welfare of his Trojan individuals, one could captivate the thought that his devotion and obligation anticipate the idea of obligation to the Republic and submission to Caesar that may have won in Virgil s Roman culture.Read MoreThe Aeneid By Virgil, The Oresteia, And Sappho By Sappho1283 Words   |  6 Pagesthat controls our actions and behaviors. Rationality helps control our emotions and prevents them from getting too out of hand. There are three texts from seminar that demonstrate this idea of emotional power: The Aeneid by Virgil, The Oresteia by Aeschylus, and Sappho by Sappho. In The Aeneid, the text discusses Aeneas’ journey to Italy and the many encounters he had. It was in this text that the females displayed emotional power. The Oresteia is a play about murder, revenge, and justice within the

Motivation Theory Literature Review - Free Essay Example

Sample details Pages: 13 Words: 3954 Downloads: 8 Date added: 2017/06/26 Category Psychology Essay Type Analytical essay Did you like this example? INTRODUCTION: Motivation is naturally conceptualized either as an desire arising from within the human being or as an impulse arising from within the organism or as an attraction arising from an object external to the individual. According to Baron (1991) defines motivation as the internal processes that activate, guide, and maintain behaviour especially goal-directed behaviour. Also (Kanfer, 1998) defines as free will element of behaviour and the psychological mechanism governing the direction, intensity, and persistence of action not due solely to individual differences in ability or overwhelming environmental demands that force action. Don’t waste time! Our writers will create an original "Motivation Theory Literature Review" essay for you Create order Motivation has been defined as essential to adaptive functioning and quality of life (Marin Chakravorty, 2005), and as the content of the positive thinking one wishes to maintain towards the attainment of an objective (Schweingruber, 2006). According to (kanfer, 1990) states that challenges facing researchers into motivation is that it cannot be seen and most individual see is a multidimensional stream of behaviour and the products of those behaviours. Also states motivational processes can be inferred only from analysis of this continuing stream of behaviour that is determined both by environment and heredity and is observed through their effects on personality, belief, knowledge, abilities and skills. Besides that,(Herzberg,1987)describes movement as a function of fear of punishment or failure to get extrinsic rewards and motivation as a function of growth from getting intrinsic rewards out of interesting and challenging work. Motivation is to be intrinsic and extrinsic. Intrinsic motivation is internal. Intrinsic motivation is obvious as the performance of an activity for its inborn satisfaction rather than for some detachable outcome. As soon as, intrinsically motivated, a person is stimulated to take action for the pleasurable or challenge entailed relatively than because of external products, pressures (Ryan et al 2000). It occurs when people are compelled to do something out of pleasure, importance, or desire. Extrinsic motivation occurs when external factors compel the person to do something. Extrinsic motivation is a pull together that pertains whenever an action is done in order to reach some detachable result. (Rayan et al. 2000).Motivation is the driving force within individuals that compels them physiologically and psychologically to pursue one or more goals to fulfil their needs or expectations. (Lam Tang, 2003, p. 61) From my understanding whatever the behaviour, the drive pushing or polling person to act in particular way is motivation and most researchers believe motivation as the drive behind human behaviour. Furthermore, people cannot be motivated to do something if there is nothing in it for them. Obviously, reward may be the avoidance of a negative outcome as much as it may be the achievement of a positive outcome. Motivation theory has to do with why do individual make the choices they make? or what makes someone persist at one activity and yet quickly give up another. Motivation is to give reason, incentive, enthusiasm, or interest that causes a specific action or certain behaviour. Motivation is present in every life function. Simple acts such as eating are motivated by hunger. Education is motivated by desire for knowledge. Motivation is a vital quality that pervades all aspects of teaching and learning. Motivated students display interest in activities, motivated teachers feel that they can help students learn and motivated administrators make possible teaching and learning in their buildings. Self-motivatio n is what most people use to define motivation at its highest mountain of accomplishments. If you are able to motivate yourself and reach your goals, you would have conquered the ability to be disciplined and will accomplish anything you put your mind to. Motivation is very important to all decisions that you have to make. In the workplace, motivation is defined by the actions that employees take to improve the company goals as well as their aspirations for career advancement. The effective performance of employees is what makes or breaks a company. So to keep employees motivated, employers must invest in the overall morale by implementing workshops and seminars to help them. Managers are the key personnel in what makes an employee follow directions. Using rewards like promotions and incentives as well as compliments can greatly improve an employees view of the company and its managers. Employees like to be recognized for their efforts regardless of the salary bracket. Such recognit ion keeps them motivated in getting their job done. Recognition in this case is the motivation technique that managers can tap into and gain the structure over the workplace environment of how they want things done. What organisation and managers can do is provide the environment, support and resources that will influence and effect motivation. Nowadays, managers are trying to find useful motivation theories to motivate their employees. While there are a wide variety of motivation theories on human motivation discussed in this literature review, which means that managers can use any or all those motivation theories to motivate their employees. Managers can use these motivation theories in ways that complement each other. MOTIVATION THEORY-MAJOR CONCEPTS AND CONTRIBUTIONS This is all about the main researchers of motivation theories and to illustrate how these theories can be apply to practical situation. Also reviewed how the major concepts and contributions can apply in work related situations and applying them in groups, teams at organisational level and individual level. Motivation is a complex concept and there are many different theories which look at the subject from different perspectives. The different theories of motivation and criticisms of the theories have been discussed as follows: 1: Hierarchy of needs theory by Maslow A.H. 2: Hygiene theory by Herzberg F. 3: X and Y theory by McGregor D.M. 4: Existence- Relatedness-Growth theory by Alderfer C. P. 5: Expectancy theory by Vroom V. 6: Goal-Setting Theory by Locke E.A. 7: Internal and External control theory by Rotter J.B. 8: Achievement theory by McClelland and Atkinson J.W. 9: Job characteristics theory by Hackman J.R. and Oldham G.R. HIERARCHY OF NEEDS THEORY: According to Maslow (1954) projected that motivation is based on a number of human need. It has to do with the hierarchy that requires the lower more basic needs to be satisfied before the increasingly less basic ones above. Maslow believed that there are five basic needs of the theory. Maslows Hierarchy of Needs is one of the most famous motivation theories, and it has been the centre of much interest by management researchers (Katz, 2004). This (Fig.1) is Maslows hierarchy of needs in pyramid with physiological needs at the base, self-actualisation at the top. 5: Self- actualisation needs: Refer to personal growth and development. 4: Esteem or Ego needs: Refer to need for status and self respect. 3: Social needs: Refer to need to part of a social group and belongingness/love 2: Safety needs: Refer to security, need for shelter or physical danger. 1: Physiological needs: Refer to basic life needs, like food, drink, shelter, etc THE SELF ACTUALISATION NEED: Maslow defined self-actualization as the complete use and utilization of talents, capacities, potentialities. (Maslow,1954). Self-actualization is not a static state. It is an ongoing procedure in which ones capacities are fully, imaginatively, and cheerfully utilized. Self-actualizing people perceive life without a doubt and they are less emotional and more objective. ESTEEM OR EGO NEEDS: According to Maslow, esteem needs were made of two types of desire. I: Desire for strength, adequacy achievement, competence and confidence in the face of organisation. 2: Desire for reputation, glory dominance, recognition, appreciation and dignity Furthermore, people need to be respected, to have self-esteem, self- respect and respect. Self-Esteem expresses the normal human desire to be acknowledged and valued by others. This has to with ones internal needs for self-respect, autonomy and external needs for status and recognition. SOCIAL NEEDS: Are the third level of human needs from the (Fig 1) above. This has to do with ones needs for affection and a sense of belonging and acceptance. Human being need to feel a sense of belonging and acceptance. They need to love and be loved. According to (Maslow, 1954) include the giving and receiving of affection. SAFETY NEEDS: As soon as peoples physical needs have satisfied, they will chase higher level needs, such as safety needs. Safety needs are determined by the need for security and protection from physical and emotion harm. Safety needs include: personal security, financial security, health and well-being, and a safety net or insurance for accidents/illness and the adverse impacts. PHYSIOLOGICAL NEEDS: Are the lowest level of needs, from the (Fig 1) above which are the most basic needs for people. Physiological needs are also measured the needs for human survival. If these needs are not met, people cannot continue to function. Physiological needs include: breathing, homeostasis, water, sleep, food, excretion, and sex. According to (Sarah Steve 2002, p175)the theory engrossed criticism regarding its principle that individuals work on satisfying needs at a higher level only once all lower- level needs have been met. Also major problem facing the theory is how to measure needs, both in terms of how powerfully they are felt and of how someone knows they have been met. Furthermore, the theory is not easy to apply directly to work because need are not met through one source. HYGIENE THEORY: According to (Herzberg et al 1959) proposed his Two-Factor Theory of Human Motivation, known as Motivation-Hygiene theory. Hygiene theory is based on the principle that things people come across satisfying in their jobs are not always the opposite of things they find dissatisfying. Herzbergs Two-Factor Theory is based on the results of research into the factors in a workplace that lead to employee satisfaction. Herzberg made use of a survey, titled, What do people want from their jobs? to achieve insights into what workplace factors people perceived as satisfying and dissatisfying. He asked people to describe in detail which workplace factors led to satisfaction and which factors led to dissatisfaction, and then he separated the results and classified them.Fig.2and Fig.3 show the factors that led to extreme satisfaction and dissatisfaction, respectively. Fig.2 Shows Factors that led to extreme satisfaction according to Herzberg Fig.3 shows Factors that led to extreme dissatis faction according to Herzberg According to(Robins 2001) The criticisms facing the theory, is methodology used by Herzberg does not take into account that often, when things are going well, people take the credit themselves, and when things are not , they blame others and their situation. There is on job satisfaction against which the people could rate their job. Also situational factors were not identified. Despite the criticisms the theory is a vital theory of motivation and used by managers to consider hygiene factors with regards to motivation. X and Y THEORY: Based on( McGregor, 1960)reviewed that the relationship between managers and employee could be immensely improved if the assumptions that had develop about how people behaved at work were changed from Theory X view to a Theory Y view. Basically one is positive and the other is negative. THEORY X: was based on scientific management school of thought and projected that enlarged productivity could result from breaking jobs down into small unit of work and giving workers a small range of obviously defined tasks to do. According to (Gray Stark, 1984) Employees do not like to work and want to evade work as much as possible. Employees do not want to take responsibility for the work; managers should take some actions, like convincing and supervising strategies, to help them finishing their mission. Theory X assumed that human actions are dictated by low-level needs, THEORY Y: Was based the predominant theory of management there could be no trust between management and employee. Also Small opportunity for relationship between management and employees in theory .According to (Gray Stark, 1984) employees treat work as entertainment and rest, it is natural. Employees have the ability to make creative decisions, not just managers. Theory Y assumed that human actions are determined by high-level needs. The theory X and Y can influence how motivating factors are regarded within an organisation. Theory X has to do with extrinsic rewards such as pay in order to motivate people to execute good in their job while theory Y has to do with working environment in which employees may discern intrinsic rewards in their job. EXISTENCE RELATEDNESS GROWTH THEORY: This has the similarities to Maslows needs hierarchy. Alderfer C.P. extended and simplified Maslows hierarchy into a shorter set of three needs: Existence, Relatedness and Growth (ERG) Theory. (Alderfer, 1969) EXISTENCE NEEDS: According to (Hollyforde Whiddett 2002) Refers Existence needs as our concern with basic material subsistence motivators and size of how satisfied this need is therefore mostly stated in conditions of what one person has in relation to others. Existence needs, is based on various forms of material and physiological needs. RELATEDNESS NEEDS: Refers to theÂÂ  motivation we have in support of maintaining interpersonal relationships GROWTH NEEDS: Refers to an intrinsic desire for personal development. Relate to personal creativity and productivity. According to (Sarah Steve 2002), the theory does not suggests how a person may meet his or needs .So managers cannot presume that everyones relationship needs will be met in the same way. Also the th eory ERG theory with its three broad categories is maybe easier to deal with than the five levels of need in hierarchy of needs theory. EXPECTANCY THEORY: Vroom suggests that this theory is Based on the principle that people expect particular actions to achieve a desired result and that the desired result is something worth striving for or avoiding. Vroom does not give attention to on needs, but rather focuses on outcomes. According to (Vroom, 1964) identifies two terms the theory. 1. Expectancy: means the stronger the assurance that an act will be followed by particular outcome, the stronger the expectancy is considered to be 2. Valence: Means affective orientations toward particular outcome either positive or negative. Theory expectancy and valence of Vroom concentrated on extrinsic outcomes rather than intrinsic ones. Based on research expectancy and valence are not as distinct from each other as Vroom recommended .And one the key criticisms is that the theory was tested as if it was based on behavioural and attitudinal predictions across rather than within persons. Furthermore, expectancy theory accommodates multiple wor k outcomes in forecasting motivation and predicts motivation to work hard to earn the merit pay will be low if expectancy low (Schermerhorn J. et al 1997) GOAL-SETTING THEORY: The theory is based on the principle that individuals are motivated to achieve the successful accomplishment of challenging goal. According to (Locke, 1968) based his result on three main conclusions. 1: The more hard goals result in higher level of performance than easy goal 2: The specific goals produce higher levels of performance than general goals. 3: The behavioural intentions influence the choices people make. The Goal -Setting theory is helpful to many managers because much of people management is particularly about performance against goals. Theory has great relevance for managers. According to (Robins, 2001) Implies that Goal Setting theory is restricted to those cultures that match the ones in which the research was carried out. INTERNAL AND EXTERNAL THEORY: The theory is based on locus of control. Locus of Control refers to an individuals perception about the underlying main causes of events in his/her life. According to (Rotter, 1966) invented the internal -external dimension to determine locus of control. Based on the extent to which people feel they are in control of the situations that engulfed them and also the extent to which they are convinced of directing events 1. External control: when individual feels that result of his or her actions is as the result of chance, luck as under the powerful others. 2. Internal control: When individual perceives that the occurrence is contingent upon his own behaviour. The Internal and External theory has been criticised for its centre of attention on the Internal-external dimension only as on personality variable .Besides that the theory is useful when considering motivation issues at individual level. ACHIEVEMENT THEORY: The theory is based the needs that can be classed as either Achievement(nAch), Affiliation(nAff) or Power(nPow) .Also theory is based on three factors research into behaviour in achievement-oriented activities. 1: when individual expects to receive unmistakable feedback on the marks of his or her action. 2: When individual feels liable for the outcome success or failure. 3: When individual feels a little level of uncertainty or risk in the activity Achievement theory does not explore why some people enjoyment a challenge and others fear failure. Achievement theory was not specifically about work. The theory is useful when considering why individuals react different to achieving tough goals and why they react to failure in individual ways (Sarah Steve 2002).McClelland recommends that top managers should have a high need for power coupled with a low need for affiliation. Sunil R. Cited (Kreitner kinicki 1998) JOB CHARACTERISTICS THEORY This theory is based on how to design a job so that it is motivating to individual. Also the theory deals with how individual responds to complex and challenging tasks. According to (Hackman Oldham 1976) job characteristics theory proposed that individuals intrinsic motivation is affected by psychological states: 1: Experienced meaningfulness of the work: The extent individuals perceive the job as meaningful and valuable. 2: Experienced responsibility for the outcomes of the work:-the extent individual feels personally accountable and responsible for the outcome of work done. 3: Knowledge of the result of the activities:-the extent individual knows, and understands on continuous basis how successfully he or she is performing the work Also theory has five job dimensions 1: Skill variety-this has to with number of type of skill and talents of individual. 2: Task identity-this has to with work at hand and job completion 3: task significance- this has to with job considerable impact on lives or work of other people. 4: Autonomy -All about individual in setting up the work and determining the procedures to be used in carrying it out. (Freedom and independence at work environment). 5: Feedback-All about individual getting direct and clear result about the effectiveness of his or her performance The theory is one of the few motivation theories specific to an organisational environment and has plenty of practical application. Theory centre of attention is on facilitating0 high internal work motivation. Hackman and Oldman based their theory on motivating individual through job design. CONTRIBUTIONS: According to (Whittington Evans 2005) The Hierarchy of Needs theory proposed by Maslow has been identified as a major influencing factor in the growth of other motivation and management work, such as that of McGregor (Theory X and Theory Y) and Herzberg Motivation-Hygiene theory. It has been generally applied as a basis for much research into, among other things, workforce commitment, job satisfaction and management theory (Stum, 2001). Goal-Setting Theory by Locke has been acknowledged the best goals and dispute facing management environment and Achievement theory by McClelland has identified problems facing motive to achieve success in management work. (Sarah Steve 2002).Expectancy theory has been used to identify job satisfaction, occupational choice, the likelihood of staying in a job, and the effort that one might expand at management work. Internal and External control theory by Rotter has enhanced the concept of persistence (locus of control) in management work. The job ch aracteristics theory relies on workers insight of the job dimensions for the accomplishment of the psychological states that lead to increased motivation. APPLICATION OF THE CONCEPT OF MOTIVATION TO FACILITIES MANAGEMENT Facilities management regularly deals with identifying relations that humans have with their environment. According to (Smith et al., 1997) the rates of pay had very little influence on participants job satisfaction and subsequent work motivation. Some affiliation can be made at this point to Maslows lowest levels of his hierarchy of needs physiological and safety needs. Maslow argued that individuals can only move up the hierarchy of needs to the higher levels of belongingness/love, esteem and finally self-actualisation, once the lower levels had been achieved; however, the results demonstrated in this study suggest that ancillary staff can be motivated and achieve higher levels of Maslows hierarchy without having their physiological and safety needs completely fulfilled. Individuals can only move up the hierarchy of needs to the higher levels of belongingness/love, esteem and finally self-actualisation, once the lower levels had been achieved; on the other hand, the results demo nstrated in this study suggest that facilities managers can motivate their staff and achieve higher levels of Maslows hierarchy without having their physiological and safety needs completely fulfilled. McGregors Theory X and y focused on managements assumptions about employees. Theory X and Y describe the average worker from management perspective and suggest methods by which facilities manager can get the best out of worker. Herzberg studies concentrated on satisfaction at work. Herzberg came to a conclusion that certain factors tended to lead to job satisfaction.(motivators),while others led to frequently to dissatisfaction(Hygiene factors).these factor are related to job context they are concerned with job environment as an extrinsic to the job itself. Shane, S., 2001. Technology opportunities and new firm creation. Management Science 47 9, pp. 1173-1181. LATEST IDEAS ON MOTIVATION THEORY First of all, fields of management background study like leadership, decision making and organization plan persist to develop conceptually speculative developments focusing on work motivation have not held in reserve speed. These changes can have a philosophical manipulate on how companies challenge to attract, retain and motivate their employees in labour market. JOB DESIGN: This is about changing the content or process of job to increase job satisfaction and performance. This is usually easier for new organisational or new business unit. Furthermore, most organisations find themselves designing as the result of organisational change and to motivate their Staff. Job design is relating to job characteristics theory, suggests job should be design in such a way as to maximise intrinsic motivation. (Sarah Steve 2002) EFFECTIVE COMMUNICATION: This gives managers strategies, to promotes positive improvement in organizations particularly motivation and performance improvement o f employees. For organization to improve well, messages should be designed in such a way as to maximise motivation. Effective communication strategies have strong effect to motivation of employees. (Sarah Steve 2002) OBJECTIVCE- SETTING: This is important to managers to focus individuals work efforts. It is important to commit employee with goals to motivate them. Most organisations applied Management by Objective (MBO) to motivate their employee. This is relating to Goal-setting, suggests individuals tend to produce higher levels of performance when they have specific goal. (Sarah Steve 2002) MANAGING VIRTUAL TEAMS: Is made of group people who regularly work mutually dependent for joint purpose across time, distance and organization. So motivating people to apply for jobs in virtual teams is one of the latest ideas. CONCULSIONS Motivational techniques, therefore, are useful to teachers, leaders, parents, employers, and almost anyone. The key is in understanding that you are not motivating someone else. Instead, you are simply providing a circumstance that triggers that person to be motivated. However, The developments in motivation and management theory. (Whittington Evans 2005) conclude that the road to building high commitment organisations requires the solid foundation laid by Maslow, McGregor and Herzberg. Motivation theories can therefore offer guidance to anyone interest in motivational issues. Motivation theories discussed above can help mangers consider how and why people are motivated. For example, Hierarchy of need theory may help manager figures out where someone is in term of the satisfaction his or her short and long term needs -which may in turn influence how they seek to create the situation that may be the most motivating. Motivation theories discussed were based on work related environme nts. However the can be applied to help individuals understand human behaviour at work. This literature review also emphasized the important of motivation theories to facilities manager with regards to working environments. Also provide frameworks enable facilities manager to manage their working environment. Finally, one of the challenge facing researchers into motivation, it cannot be seen.

Wine and the French Revolution - 600 Words

The popularity of wine in France continues to be a major mainstay in the French diet, just as it was during the French Revolution. The French Revolution was a devastating time for the French population; many lives were lost during the battle. France is known for, other than the revolution, their production wine (â€Å"French Wine Culture†). Wine has an important role in their culture as well as their position on the social ladder (â€Å"France†). Wine also has a symbolic role in their religion. Therefore, France is a popular country for the making and producing of wine, and has the reputation as the Mother Country (â€Å"French Wine Culture†). Receiving this title did not happen overnight; France has been producing and manufacturing wine for a long period of time. Wine plays roles in many aspects of their society. For example, wine reflects their heritage, region of birth, social status, and their health (â€Å"France†). Wine resembles the differences be tween regions and their national pride (â€Å"France†). Not only does the region reflect their heritage but it also helps determine the name of the wine itself, as does the vineyard they are grown in (â€Å"French Wines†). Most vineyards are very large. They typically cover a good portion of the land, with the exception of the buildings that it is made in. Although France is known at the mother country as a whole, there are still some regions that are more productive and successful at making and distributing wine. Alsace, Beaujolais, andShow MoreRelatedA Tale of Two Cities, by Charles Dickens1420 Words   |  6 PagesThe era surrounding the French Revolution was a horrifically bloody and violent period of history – the best of times and the worst of times. The violence enacted by the citizens of French on their fellow countrymen set a gruesome scene in the cities and country sides of France. 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Dr. Manette, a Bastille prisoner of eighteen years, is freed, by his beautiful daughter Lucie and a businessmanRead MoreRevolutionary Images in a Tale of Two Cities by Charles Dickens1463 Words   |  6 Pages â€Å"it was the season of Light, it was the season of Darkness, it was the spring of hope, it was the winter of despair †¦ we were all going direct to Heaven, we were all going direct the other way†¦Ã¢â‚¬  asserts Charles Dickens in reference to the French Revolution (Dickens 1). This infamous rebellion began as a respectable, even gallant, cause: an uprising against the inhumane way the aristocracy treated the peasants. However, as long as man has the ability to hate, he is going to want revenge. This addedRead MoreA Tale Of Two Cities By Charles Dickens1413 Words   |  6 PagesDefarge, Lucie Manette, Lucie Manette’s husband, Charles Darnay, and a few others who lived around the time of the French Revolution. 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In A Tale of Two Cities, Charles Dickens uses alcohol to underscore the difference in status betweenRead MoreA Tale Of Two Cities Dialectical Journal1253 Words   |  6 PagesDickens is trying to emphasizes the poor side of this beautiful town, and how miserable the people are. The village had its one poor street, (...) he said. Dickens wants people to realize how poor and miserable these people are prior to the French Revolution, and he wants also to emphesize what lead up to it happening. (...) tears immediately rolled down several ferocious countenances which had been glaring at the prisoner a moment before, as if with impatience to pluck him out into the streetsRead MoreThe Culture Of Wine As A Hunter Gatherer Society938 Words   |  4 Pagesbecame a prominent power in the Middle East, they began rejecting the former traditions held by the Mediterranean. In the Bible, wine is portrayed as something that is important and symbolic. This portrayal of wine is similar to how the Mediterranean culture portrayed wine because Christianity had deep ties with their drinking culture. Thus, Islam rejected the consumption of wine. At first the Arabs dominated the coffee industry and were becoming a monopoly in which the Europeans had to depend on. TheRead MoreA History Of The World In 6 Glasses Essay1458 Words   |  6 Pagesthrived. â€Å"Wine in Greece and Rome† (Chapters 3 4) 1.) What does the story of wine tell you about social and gender roles in the Mediterranean world ? How did this change over time ? The story of wine tells me that the people of Nimrud were not treated equally. Rations of wine were only given to about six thousand people in the royal household. High officials received the most. However, every worker of the household would receive wine. This changed when wine became

Britney Spears A Woman I Admire Essay Example For Students

Britney Spears A Woman I Admire Essay There are many women that have an impact on my life; however, the question is how many of them do I look up to? Of course the most obvious person is my very own mother, but that made me think who else deserves to join this circle of reverence. Some names entered my mind, but do I really admire them? It is clear that women that enter my daily life like Oprah Winfrey have an impression on me, but impact and admiration do not always go hand in hand. Then I realized who I really admire: Britney Spears. The teen pop idol singer Britney Spears is a woman that I look up to for many reasons. She has tantalized the entire worlds youth with her incredible voice. By doing so, she serves as a role model for many of the young people growing up in todays society. Although Britney is only 19, she already has had a major effect on a multitude of people. Not only does she reach the eyes of the five year old, but she also influences teenagers and adults alike. There are not many people who you have ac complished this phenomenon, which is why I give her my full respect. Britney is not only a singer, she is a mentor as well. Through her song writing, she has passed along her ideas and life experiences. In her song Dear Diary, Britney gives a personal account of her encounter with a boy. Dear diary/I cant get him off my mind/And it scares me/ Cause Ive never felt this way. Growing up, many of us have to face certain social anxieties and pressures. Through this song, it shows that she also has to deal with these feelings. This is an important message to send because many kids feel alienated growing. This song shows them that they are not the only ones experiencing these feelings. She has helped many people in this way through her singing. I also admire her because it is not easy for her to sing about her personal accounts knowing that she has such a large audience. This shows that she cares about the people she affects; the quality of a true role model. Another instance where this as pect of Britney shines through is in her song, My Only Wish This Year from the album Platinum Christmas. In one part of the song, Britney says, Last night I took a walk in the snow/Couples holding hands, places to go/Seems like everyone but me is in love. This helps many kids with the process of growing up and maturing into adults. She shares her emotions with them which shows them that other people have similar struggles. Through her brilliant writing and singing, Britney has proven to me that she has the true aspects of a role model. She utilizes the influence she has by using it as a medium to give advice. The combination of her amazing voice and her lyrics along with her important messages are what have caused her to bloom into a sensation. In my mind, Britney is a true role model which is why I admire her.

Skin detection free essay sample

IntroductionSkin detection is perhaps the most widely used primitive in human image processing research. Skin detection mostly used as a primary step in various human concerned image processing applications. Skin detection is method of discriminating human skin pixel from non-skin pixels in an image or video [1]. It is one of the prominent research area in human computer interaction, face detection, face tracking [2, 3], gesture recognition [4], computational health informatics, web content filtering and many more. Skin detection is used as a cue for detecting people in real life images. The main challenge is to make skin detection robust to the large variations in appearance that can occur. However, there are various factors that make skin detection challenging. Among them variations in illumination, various ethnicity people with many skin tones, presence or absence of shadows in an image or videos, various background color and objects including wood, cloths and their similarity to skin, human hair with different variations and their resemblance to skin color, using makeup that changes the natural skin color and different camera characteristics make skin detection problem hard. We will write a custom essay sample on Skin detection or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Efficient handling of aforementioned challenges demands a model that is capable of differentiate skin and non-skin pixels. But until now that seems not to be achieved. In this thesis, a skin detection model is proposed which can overcome the challenges and perform better in real world skin detection problem.Researchers have been working tirelessly to find a technique which will be able to detect skin in spite of present challenges. However, Skin detection problem can be considered a binary classification problem, meaning, a pixel can be classified whether it is a skin pixel or not. There are mainly two types of skin detection, either pixel based or region based. In pixel based detection, a pixel is classified compared with its neighbor either as a skin pixel or not. Skin detection that is based on various color spaces are an example for this type of detection. In other hand, region based skin detection focus on spatially arrangement of skin pixel with additional information of intensity and texture. However, Vezhnevets et al. [5], Kakumanu et al. [6], and Phung et al. [7] has conducted surveys about skin color modeling and skin segmentation based on color information in different color spaces. Phung has discovered that skin detection accuracy does not depend on choice of color space or color quantization bin sizes. Besides for skin segmentation a few researchers have also used texture [8, 9, 10] or shape [11] information in combination with color-based methods. Wavelets, contourlets [12, 13], and textons are among the textural features that have been used in conjunction with color cues. Convolutional Neural Network (CNN) received mentionable amount of attractions for image classification and object detection. So, there was some approach to classify and pixel-wise prediction using deep neural network architecture. This CNN method outperforms hand crafted threshold based method. But CNN does not work well defining relationship between pixel and its neighbors. Since skin pixels are located close to each other spatially, CNN lacks the desired performances. For all of this previous work, color cues have provided the dominant source of information. In spite of the emphasis on color-based analysis, a considerable number of applications will benefit from a system that can perform skin detection in the absence of color cues. Moreover, previously mentioned approaches heavily depend on color information that can lead to incorrect detection. Despite of the fact that there are various methods are present, it is tough to pick one which would project good accuracy in various conditions. So, it is worth looking to a new technique for better performance.The purpose of this study is to find a skin detection method which does not relay on any predefined thresholds. A skin detection technique must be robust in spite of varying conditions. Moreover, the proposed technique needs to be tested and experimentally evaluated to establish its reliability. The primary contributions of the work areI. Proposed method take advantage of broad spectrum of LAB color space and separate illumination by considering only A and B components. It ensures the pixels characteristics without being biased of light presenceII. K-means clustering is used for clustering. The main challenge for an unsupervised learning is to automatically define number of clusters. Features in images varied greatly and number of cluster should be defined dynamically. This challenge was solved in this study by considering largest areas of connected objects.III. For region growing, seeding points are crucial. Hence, by clustering further it can be ensuring that seeding points obviously belongs to skin pixels. Moreover, standard deviation of only skin pixels is calculated which group maximum skin pixel and provide correct region of Interest of an image.Chapter 02Literature ReviewIn this section, some related works are discussed that is relevant to the study. The first part is skin detection methods followed by the clustering technique used in this study and a cluster validation index. Various methods have been proposed for skin detection. In term of technical merit, they can be divided into two broad categories- statistical based method and dynamic adaptive method [14, 15]. Statistical method relays on skin features that can be derived from training sample [16]. Researchers first try to get the color features of skin pixels for a skin classifier. This approaches used a threshold for various basic color spaces. Moreover, there are many color space available- Basic color space, perceptual color space, Orthogonal color space and perceptually uniform color spaces.2.1 Color Spaces in Skin DetectionColor space is a 3D space with axes appropriately defined for all possible human perceptions. Among different color spaces, some of them are imaging device depended and not close to human vision. This color spaces are modified for digital applications. However, color is not directly utilized in various skin detection methods but it affect the performance of a skin detection algorithm. Albiol et al. [17] has mathematically showed that, skin detection performance is independent from choice of color space. As mentioned earlier, device depended color spaces are popular among researchers for skin detection.RGB is a color space that is derived from the cathode ray tube display and as the name suggests, it comprise with three color-red, green and blue. Brand, J and Mason [18] , Jones and Regh [19], Caetano and Barone[20], Oliver et al. [21], Kim et al. [22], Schwerdt and Crowley [23], Sebe et al. [24], Storring et al. [25],Wang and Sung [26], Yang and Ahuja [27],Yang et al. [28] , used RGB color space for skin detection. But high correlations between channels is a drawback of this color space with mixing chrominance and luminance portion. However, some approaches take the advantage of normalized RGB. In normalized RGB, all the channel valus are normalized. As the sum of all the channels are known, then the third component can be avoided. This technique reduces space dimensionality. Brightness of source RGB deeply depends on red and green channel and normalization can separate it. So, for matte surface the ambient light can be ignored and normalized RGB remain constant for the changes in surface [29]. These advantages attract many researchers on color space based skin detections [30, 31]. But normalized RGB color space suffers from uneven illuminations. CIE (Commission Internationale de lEclairage) system represent the color space with Y as luminance. CIE-XYZ was developed from a psychological experiment and it is close to human visual system [32].Besides, various device dependent color spaces are used for TV transmission and digital photography. The orthogonal color space family includes well-known color spaces such as YCbCr, YCgCr, YDbDr, YPbPr, YIQ and YUV. In these color spaces, unlike the RGB, the luminance channel is separated from chrominance resulting a very tight pseudo-ellipse skin cluster. Due to the particular features of these color spaces such as separation of luminance-chrominance channels, relatively simple RGB conversion and relatively tight skin cluster, orthogonal color models have been frequently used in skin segmentation [33-36]. Perceptual color spaces such as HSI, HSV, HSB, HSL and TSL are very attractive color spaces in skin detection literature. In these color models, each pixel is presented by Hue (tint or color), Intensity (lightness) and Saturation associated with physiological feeling of human [37].An artist idea of using saturation, tint and tone was taken into account. These concepts introduce HSV color space where hue (H) defines the most dominant color of a concern area, saturation represent colorfulness with respect to brightness. However, intensity, lightness or value/ variance defines luminance. The capability of intuitive of color components and ability to distinguish between luminance and chrominance make it popular for skin detection. HSV color space is used by Garcia and Tziritas [38], McKenna et al. [39], Saxe and Foulds, [40], Sobottka and Pitas [41], Thu et al. [42], Wang and Yuan [43], Zhu et al. [44]. Various characteristics of hue- invariant to highlights at white light sources, matte surfaces to ambient light and surface orientation for light source was discussed at [45]. However, Poynton [46] mentions some shortcomings like- discontinuation of hue and brightness computation complexity with color vision properties. Moreover, logarithmic transformation based HS named as Fleck HS introduced by Fleck and used by Zarit [47] .A similar color space named as TSL-tint, saturation and Lightness.

Standard English Definitions and Controversies

Standard English Definitions and Controversies In the entry for Standard English in  The Oxford Companion to the English Language (1992), Tom McArthur observes that this widely used term...resists easy definition but is used as if most educated people nonetheless know precisely what it refers to. For some of those people, Standard English (SE) is a synonym for good or correct English usage. Others use the term to refer to a specific geographical dialect of English or a dialect favored by the most powerful and prestigious social group. Some linguists argue that there really is no single standard of English. It may be revealing to examine some of the presumptions that lie behind these various interpretations. The following commentsfrom linguists, lexicographers, grammarians, and journalistsare offered in the spirit of fostering discussion rather than resolving all the many complex issues that surround the term Standard English. Controversies and Observations About Standard English A Highly Elastic and Variable Term [W]hat counts as Standard English will depend on both the locality and the particular varieties that Standard English is being contrasted with. A form that is considered standard in one region may be nonstandard in another, and a form that is standard by contrast with one variety (for example the language of inner-city African Americans) may be considered nonstandard by contrast with the usage of middle-class professionals. No matter how it is interpreted, however, Standard English in this sense shouldnt be regarded as being necessarily correct or unexceptionable, since it will include many kinds of language that could be faulted on various grounds, like the language of corporate memos and television advertisements or the conversations of middle-class high-school students. Thus while the term can serve a useful descriptive purpose providing the context makes its meaning clear, it shouldnt be construed as conferring any absolute positive evaluation. (The American Heritage Dictionary of the English Language, 4th edition, 2000) What Standard English Is Not (i) It is not an arbitrary, a priori description of English, or of a form of English, devised by reference to standards of moral value, or literary merit, or supposed linguistic purity, or any other metaphysical yardstickin short, Standard English cannot be defined or described in terms such as the best English, or literary English, or Oxford English, or BBC English.(ii) It is not defined by reference to the usage of any particular group of English-users, and especially not by reference to a social classStandard English is not upper class English and it is encountered across the whole social spectrum, though not necessarily in equivalent use by all members of all classes.(iii) It is not statistically the most frequently occurring form of English, so that standard here does not mean most often heard.(iv) It is not imposed upon those who use it. True, its use by an individual may be largely the result of a long process of education; but Standard English is neither the product of lingui stic planning or philosophy (for example as exists for French in the deliberations of the Academie Francaise, or policies devised in similar terms for Hebrew, Irish, Welsh, Bahasa Malaysia, etc); nor is it a closely-defined norm whose use and maintenance is monitored by some quasi-official body, with penalties imposed for non-use or mis-use. Standard English evolved: it was not produced by conscious design. (Peter Strevens, What Is Standard English? RELC Journal, Singapore, 1981) Written English and Spoken English There are many grammar books, dictionaries and guides to English usage which describe and give advice on the standard English that appears in writing...[T]hese books are widely used for guidance on what constitutes standard English. However, there is often also a tendency to apply these judgments, which are about written English, to spoken English. But the norms of spoken and written language are not the same; people dont talk like books even in the most formal of situations or contexts. If you cant refer to a written norm to describe spoken language, then, as we have seen, you base your judgments on the speech of the best people, the educated or higher social classes. But basing your judgments on the usage of the educated is not without its difficulties. Speakers, even educated ones, use a variety of different forms... (Linda Thomas, Ishtla Singh, Jean Stilwell Peccei, and Jason Jones, Language, Society and Power: An Introduction. Routledge, 2004) Although Standard English is the kind of English in which all native speakers learn to read and write, most people do not actually speak it. (Peter Trudgill and Jean Hannah,  International English: A Guide to the Varieties of Standard English, 5th ed. Routledge, 2013) Standard English Is a Dialect If Standard English is not therefore a language, an accent, a style or a register, then of course we are obliged to say what it actually is. The answer is, as at least most British sociolinguists are agreed, that Standard English is a dialect...Standard English is simply one variety of English among many. It is a sub-variety of English... Historically, we can say that Standard English was selected (though of course, unlike many other languages, not by any overt or conscious decision) as the variety to become the standard variety precisely because it was the variety associated with the social group with the highest degree of power, wealth and prestige. Subsequent developments have reinforced its social character: the fact that it has been employed as the dialect of an education to which pupils, especially in earlier centuries, have had differential access depending on their social class background. (Peter Trudgill, Standard English: What It Isn’t, in Standard English: The Widening Debate, edited by Tony Bex and Richard J. Watts. Routledge, 1999) The Official Dialect In countries where the majority speak English as their first language one dialect is used nationally for official purposes. It is called Standard English. Standard English is the national dialect that generally appears in print. It is taught in schools, and students are expected to use it in their essays. It is the norm for dictionaries and grammars. We expect to find it in official typed communications, such as letters from government officials, solicitors, and accountants. We expect to hear it in national news broadcasts and documentary programmes on radio or television. Within each national variety the standard dialect is relatively homogeneous in grammar, vocabulary, spelling, and punctuation (Sidney Greenbaum, An Introduction to English Grammar. Longman, 1991) The Grammar of Standard English The grammar of Standard English is much more stable and uniform than its pronunciation or word stock: there is remarkably little dispute about what is grammatical (in compliance with the rules of grammar) and what isnt. Of course, the small number of controversial points that there aretrouble spots like who versus whomget all the public discussion in language columns and letters to the editor, so it may seem as if there is much turmoil; but the passions evinced over such problematic points should not obscure the fact that for the vast majority of questions about whats allowed in Standard English, the answers are clear. (Rodney Huddleston and Geoffrey K. Pullum, A Students Introduction to English Grammar. Cambridge University Press, 2006) The Guardians of Standard English The so-called native speakers of standard Englishes are those people who have somehow espoused a particular set of conventions that loosely have to do with the way English has been codified and prescribed in dictionaries, grammar books and guides to good speaking and writing. This group of people includes a large number of those who, having espoused the conventions, nevertheless do not consider themselves to be excellent users of those conventions. For many of these so-called native speakers the English language is a unique entity that exists outside or beyond its users. Rather than considering themselves owners of English, users often think of themselves as guardians of something precious: they wince when they hear or read uses of English that they consider to be sub-standard, and they worry, in their letters to newspapers, that the language is becoming degraded... Those who do feel they have rights and privileges, who have a sense of ownership of the English language and who can make pronouncements about what is or is not acceptable, as well as those to whom these attributes are accorded by others, do not necessarily belong to a speech community whose members learned English in infancy. Native speakers of non-standard varieties of English, in other words, the majority of native speakers of English, have never had any real authority over Standard English and have never owned it. The actual proprietors may, after all, simply be those who have learned thoroughly how to use a standard English to enjoy the sense of empowerment that comes with it. So those who make authoritative pronouncements about a standard English are simply those who, irrespective of accidents of birth, have elevated themselves, or been elevated, to positions of authority in academe or publishing or in other public areas. Whether or not their pronouncements will continue to be accepted is another matter. (Paul Roberts, Set Us Free From Standard English. The Guardian, January 24, 2002) Toward a Definition of SE From the dozens of definitions [of Standard English] available in the literature on English, we may extract five essential characteristics. On this basis, we may define the Standard English of an English-speaking country as a minority variety (identified chiefly by its vocabulary, grammar, and orthography) which carries most prestige and is most widely understood. (David Crystal, The Cambridge Encyclopedia of the English Language. Cambridge University Press, 2003) SE is a variety of Englisha distinctive combination of linguistic features with a particular role to play...The linguistic features of SE are chiefly matters of grammar, vocabulary, and orthography (spelling and punctuation). It is important to note that SE is not a matter of pronunciation. . . .SE is the variety of English which carries most prestige within a country... In the words of one US linguist, SE is the English used by the powerful.The prestige attached to SE is recognized by adult members of the community, and this motivates them to recommend SE as a desirable educational target...Although SE is widely understood, it is not widely produced. Only a minority of people within a country...actually use it when they talk...Similarly, when they writeitself a minority activitythe consistent use of SE is required only in certain tasks (such as a letter to a newspaper, but not necessarily to a close friend). More than anywhere else, SE is to be found in print. The Ongoing Debate It is in fact a great pity that the standard English debate is marred by the sort of conceptual confusions and political posturings (no matter how poorly expressed) ...For  I think there are genuine questions to be asked about what we might mean by standards in relation to speech and writing. There is a great deal to be done in this respect and proper arguments to be made, but one thing is clear for sure. The answer does not lie in some simple-minded recourse to the practice of the best authors or the admired literature of the past, valuable though that writing is. Nor does the answer reside in rules for speech laid down by either the educated of any official body held to be able to guarantee spoken correctness. The answers to the real questions will be found to be much more complex, difficult and challenging than those currently on offer. For these reasons they might be more successful. (Tony Crowley, Curiouser and Curiouser: Falling Standards in the Standard English Debate, in Standard English: The Widening Debate, edited by Tony Bex and Richard J. Watts. Routledge, 1999)

Ocean Noise Pollution Essay Example

Ocean Noise Pollution Essay Example Ocean Noise Pollution Paper Ocean Noise Pollution Paper For millions of years, the oceans have been filled with sounds from natural sources such as the squeaks, moans and clicks of whales and dolphins, the snapping of shrimp, the sound caused by wind upon the surface and even the occasional rumble from earthquakes. Over millions of years, the oceans marine species have developed into what they are today, with their own specialized acute hearing abilities, communication skills and echo location abilities at natural sound levels. Hearing is generally as important to many marine creatures as sight is for humans. The oceans once referred to as the The Silent World by Jacques Southeast, has now become an increasingly noisy place since the industrial age. According to Wisped, Noise Pollution is excessive, displeasing human, animal or machine-created environmental noise that disrupts the activity or balance of human or animal life. Noise pollution could also be defined as a type of energy pollution in which distracting, irritating, or damaging sounds are freely audible. As with other forms of energy pollution (such as heat and light pollution), noise pollution contaminants are not physical particles, but rather waves that interfere with durably-occurring waves of a similar type in the same environment. Thus, the definition of noise pollution is open to debate, and there is no clear border as to which sounds may constitute noise pollution. In the narrowest sense, sounds are considered noise pollution if they adversely affect wildlife, human activity, or are capable of damaging physical structures on a regular, repeating basis. Hearing is the universal alerting sense in all vertebrates. Sound is extremely important because animals are able to hear events all around them, no matter where their attention is focused. Sound travels far greater distances than light under water. Light travels only a few hundred meters in the ocean before it is absorbed or scattered. Even where light is available, it is more difficult to see as far under water as in air, limiting vision in the marine environment It is similar to looking through fog on land. So, the best opportunity for long-range vision underwater especially in murky water is to swim beneath objects and see their silhouettes. In consequence, most marine animals rely on sound for survival and depend on unique adaptations hat enable them to communicate, protect themselves, locate food, and navigate underwater. Animals change the rate of sound production and the structure of the sounds to send different messages. Underwater sound allows marine animals to gather information and communicate at great distances and from all directions. The speed of sound determines the delay between when a sound is made and when it is heard. The speed of underwater sound is five times faster than sounds traveling in air. Sound travels much further underwater than in air. Thus marine animals can perceive sound coming from such further distances than terrestrial animals. Because the sound travels faster, they also receive the sounds after much shorter delays (for the same distance). It is no surprise that marine mammals have evolved many different uses for sounds. Marine mammals, such as whales, use sound to identify objects such as food, obstacles, and other whales. By emitting clicks, or short pulses of sound, marine mammals can listen for echoes and detect prey items, or navigate around objects. This animal sense functions just like the sonar systems on navy ships. It is clear that producing and hearing sound is ITIL to marine mammal survival. Whales and dolphins are celebrated for their sounds, but many species of fish and marine invertebrates also use sound. Fish produce various sounds, including grunt, croaks, clicks, and snaps, which are used to attract mates as well as ward off predators. For the taffies, sound production is very important in courtship rituals. Sound is produced by the male taffies to attract the female for mating and is especially important in the murky waters that taffies inhabit where sight is limited. Ashes also produce sound when feeding. When a fish eats hard food, such as coral, it will produce a sound. Fishes sometimes gnash their teeth without the presence of food, which may be a way to scare away predators. As you can see, sound is very important to its underwater inhabitants. It allows them to navigate, to hear approaching predators and prey, and is a way of communicating with other members of the same species. There are a lot of sources of noise in the marine environment. Naturally occurring noises include underwater volcanic eruptions and storms. Background noise in the ocean is produced by reeking waves, wind and rain, and by the huge number of small crustaceans and other animals. A typical background noise level is about 100 decibels (db), which is about the same in energy terms as 40 db in air. Wind and waves in storms, and choruses from fish and invertebrate can increase this level to about 1 20 db. Measurements show that the Pacific Ocean is still relatively quiet and that most of its background noise is produced by wind and by marine creatures. This is in contrast to the Atlantic Ocean, where most of the background noise is from the churning propellers of ocean-going ships. There are also several man-made (anthropogenic) sources of ocean noise, some of which are the unintended by products of human activity (e. G. Sell propulsion), while others are produced for a specific purpose (e. G. Military sonar). Whales, dolphins and porpoises today face a wealth of man-made threats including hunting, ship strikes, entanglement in fishing gear and issues arising from climate change. However, one man-made threat that is not as commonly acknowledged as others is ocean noise pollution. This is partly due to the fact that it is not a visible threat, so can be easily overlooked. The noi se becomes problematic and highly hazardous when it is man-made. In the past several years many studies have shown that man-made ocean noise emanating from such sources as are military sonar equipment, ship traffic, and underwater drilling, commercial shipping seismic surveys for Oil and gas exploration, mineral and aggregate extraction, construction (e. G. Drilling, dredging and explosions), acoustic deterrent and harassment devices(e. G. Pincers on fishing nets used to deter predators) and recreational activities(e. G. Boating). Noise pollution in the oceans has been shown to cause hysterical and behavioral changes in marine life, especially in dolphins and whales, which rely on sound for daily activities. However, low frequency sound produced by large scale, offshore activities is also suspected to have the capacity to cause harm to other marine life as well. It can also cause hemorrhage or other trauma to the marine mammals auditory system, sometimes leading to permanent hearing loss, and, indirectly, death. It also causes displacement from their natural habitat, disruption of feeding, breeding, nursing, and other behaviors vital to the species survival. Some of he sounds produced by these man-made sources can travel for hundreds of kilometers in marine environment, potentially affecting many marine animals over a huge are. The growing amount of human noise pollution in the ocean could lead fish away from good habitat and off to their death, according to new research from a KICK-led team working on the Great Barrier Reef. Noise pollution might also severely affect the distribution offish, and their ability to reproduce, communicate and avoid predators. For example, some studies have reported that Atlantic herring, cod and blue-fin tuna flee sounds and school less coherently in noisy environments. That could mean that fish distributions are being affected, as fish avoid places polluted by man-made noise. Not only can squids and octopuses sense sound, but as it turns out, these and other so-called asphodels might be harmed by growing noise pollution in our oceans?from sources such as offshore drilling, ship motors, sonar use and pile driving. Giant squid, for example, were found along the shores of Austria, Spain in 2001 and 2003 following the use of air guns by offshore vessels and examinations eliminated all known causes of lesions in Hess species, suggesting that the squid deaths could be related to excessive sound exposure. The effects of noise pollution on whales depend, among other things, on the distance the whales are from the source of the noise. If the sound is very powerful and close to the animals it could well bring about permanent ear damage, internal injuries, and even death. Even sounds less powerful can induce temporary deafness, as was shown by studies carried out on seals, dolphins and belugas in captivity. Knowing just how dependent whales are on sounds, there is much cause for concern. During March of 000, at least 17 whales stranded themselves in the Bahamas and the population of beaked whales in this region disappeared. A federal investigation identified testing of a U. S. Ana active sonar system as the cause. There are many things we can do to decrease ocean noise, Ocean Link, an organization dedicated to ocean education, says on its website. The first would be to simply recognize that there is a noise problem in the oceans, which some governments have begun to do. With formal recognition, it may be possible for national and international agencies to work together to help reduce this problem. For any new policies regarding ocean noise, scientists should follow the precautionary principal to ensure that no further harm will come to marine mammals. From this perspective, governments should adopt legislation with the habitats of marine mammals in mind, ensuring that important areas would receive the least impact possible. While these may come too late for hundreds of sea animals that have already been damaged by underwater noise, with the right and concerted action, the seas may resonate with the sounds of whale songs, not the human-produced lethal noises of engines and machinery.