Xxx.comTheories of light In the seventeenth century two rival theories of the nature of light were proposed‚ the wave theory and the corpuscular theory. The Dutch astronomer Huygens (1629-1695) proposed a wave theory of light. He believed that light was a longitudinal wave‚ and that this wave was propagated through a material called the ’aether’. Since light can pass through a vacuum and travels very fast Huygens had to propose some rather strange properties for the aether: for example; it must
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DEPENDENCY‚ AND ATTACHMENT: A THEORETICAL REVIEW OF THE INFANT-MOTHER RELATIONSHIP MARY D. SALTER AINSWORTH Johns Hopkins University 3 theoretical approaches to the origin and development o f the infant-mother relationship are reviewed: psychoanalytic theories of object relations‚ social learning theories of dependency (and attachment)‚ and an ethologically oriented theory o f attachment. "Object relations‚" "dependency‚" and "attachment‚" although overlapping‚ are seen to differ substantially. Among
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Journals is collaborating with JSTOR to digitize‚ preserve and extend access to Feminist Review. http://www.jstor.org Reviews Gender Trouble: Feminism and the Subversion of Identity Judith Butler Routledge:London 1990 ISBN 0 415 90043 3 Pbk ?8.99 ISBN 0 415 90042 5 Hbk ?30.00 A book that comes with nuggets of unstinting praise from such names as Harding‚ Haraway‚ Scott and Spivak printed on its cover is bound to excite expectations - and perhaps bound to disappoint them as
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Theories and Theorists By William Deiyan Towah Theory is a symbolic statement which consists of concepts or variables that underpin how the relationship of the variables provide for a given phenomenon or set of phenomena that aims to: describe‚ explain‚ predict‚ or prescribe; it is a model or set of concepts that provide understanding to real phenomena and‚ therefore‚ hypothesize the basis for guided action or a framework for a given research or study (Patton‚ 2009; Creswell‚ 2009). In the Social
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Post-colonialial theory as a recent field of study has lately become one of the most attractive academic disciplines - if it can be called a discipline - that incessantly triggers piles and piles of literature written by art of critics‚ social reformists‚ political scientists‚ literary critics and political economists. The continuous expansion of post-colonialism in its recent version made its own domains of interest and areas of functionality overlap with other fields of global academic studies
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The Evolution of Leadership Theory David A. Van Seters Stevenson‚ Kellogg‚ Ernst & Whinney‚ Vancouver‚ British Columbia and Evolution of Leadership Theory 29 Richard H.G. Field University of Alberta‚ Edmonton‚ Canada Leadership is one of the most complex and multifaceted phenomena to which organisational and psychological research has been applied. While the term "leader" was noted as early as the 1300s (The Oxford English Dictionary‚ 1933) and conceptualised even before biblical times
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scenario. After that the solution concepts are selected in order to acquire a prediction about the possible behavior of the players and outcomes of their actions. These results will be obtained through implementation of the equilibrium concepts like game theory selected for the current strategic framework and predictions will be made. Last section presents the discussion on the importance of results obtained through the implementation of the concept solutions. Relevance from Strategic Perspective As
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attachment of their hydroxyl functional group. The location of this hydroxyl functional group will impact the molecular structure of the alcohol‚ making it either primary (1° )‚ secondary (2° )‚ or tertiary (3° ). The purpose of this experiment is to observe and predict the reactions that take place between all three alcohols and an oxidizing agent‚ as well as to test our theories of how the molecular structure affects the chemical properties of the three isomers of butanol. I predict that the primary
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Philosophy Ego Theory and Bundle Theory Derek Parfit’s views on personal identity and the Ego and Bundle Theory are all summarized in his article “Divided Minds and the Nature of Persons”. In his article‚ Parfit explains the distinction between Ego theory and Bundle theory and provides several arguments against Ego Theory. Although it proves to be very difficult to believe the Bundle Theory‚ Parfit’s critique is convincing and well thought out. In order to defend the Bundle Theory of personal identity
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Theory X and Theory Y Understanding Team Member Motivation What motivates employees to go to work each morning? Many people get great satisfaction from their work and take great pride in it; Others may view it as a burden‚ and simply work to survive. This question of motivation has been studied by management theorists and social psychologists for decades‚ in attempts to identify successful approaches to management. Social psychologist Douglas McGregor of MIT expounded two contrasting theories
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