2,993,711 research outputs found

    True CMB Power Spectrum Estimation

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    The cosmic microwave background (CMB) power spectrum is a powerful cosmological probe as it entails almost all the statistical information of the CMB perturbations. Having access to only one sky, the CMB power spectrum measured by our experiments is only a realization of the true underlying angular power spectrum. In this paper we aim to recover the true underlying CMB power spectrum from the one realization that we have without a need to know the cosmological parameters. The sparsity of the CMB power spectrum is first investigated in two dictionaries; Discrete Cosine Transform (DCT) and Wavelet Transform (WT). The CMB power spectrum can be recovered with only a few percentage of the coefficients in both of these dictionaries and hence is very compressible in these dictionaries. We study the performance of these dictionaries in smoothing a set of simulated power spectra. Based on this, we develop a technique that estimates the true underlying CMB power spectrum from data, i.e. without a need to know the cosmological parameters. This smooth estimated spectrum can be used to simulate CMB maps with similar properties to the true CMB simulations with the correct cosmological parameters. This allows us to make Monte Carlo simulations in a given project, without having to know the cosmological parameters. The developed IDL code, TOUSI, for Theoretical pOwer spectrUm using Sparse estImation, will be released with the next version of ISAP

    God’s Extended Mind

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    The traditional doctrine of divine omniscience ascribes to God the fully exercised power to know all truths. but why is God’s excellence with respect to knowing not treated on a par with his excellence with respect to doing, where the latter requires only that God have the power to do all things? The prima facie problem with divine ”omni-knowledgeability’ -- roughly, being able to know whatever one wants to know whenever one wants to know it -- is that knowledge requires an internal representation, whereas mere ”knowledgeability’ does not. I argue to the contrary that knowledge does not require an internal representation, and that even if it did, an omni-knowledgeable God would satisfy this requirement. omni-knowledgeability therefore represents a distinct understanding of God’s cognitive excellence while satisfying the traditional insistence on full omniscience

    The Power of a Small College

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    Gandhi showed the world what a small body of determined spirits could accomplish together. At Linfield, we know something about determination and the power of a small community

    Know-how disclosure and incomplete contracts

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    When two parties invest in human capital and at the same time decide on know-how disclosure it can be shown that joint ownership with veto power is the optimal ownership structure, given that only incomplete contracts can be written.Incomplete contracts; Know-how disclosure; Joint ownership

    A Capital Idea

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    [Excerpt] The victory at Work Wear plants is a striking example of how unions\u27 financial power can make worker\u27s lives better. Unions can intervene and show power in bankruptcy courts, in corporate board rooms, and at the deal-making tables. Unions never have to be shut out of the forums where the futures of our companies are decided. We just have to know how to use the tools we already possess

    Personal Relations and their Effect on Behavior in an Organizational Setting: An Experimental Study

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    We study how personal relations affect performance in organizations. In the experimental game we use a manager has to assign different degrees of decision power to two employees. These two employees then have to make distributive decisions which affect themselves and the manager. Our focus is on the effects on managers' assignment of decision power and on employees' distributive decisions of one of the employees and the manager knowing each other personally. Our evidence shows that managers tend to favor employees that they personally know and that these employees tend, more than other employees, to favor the manager in their distributive decisions. However, this behavior does not affect the performance of the employees that do not know the manager. All these effects are independent of whether the employees that know the manager are more or less productive than those who do not know the manager. The results shed light on discrimination and nepotism and its consequences for the performance of family firms and other organizations.Family firms, nepotism, corporate governance, procedural fairness, experiments

    Child-rearing With Minimal Domination: A Republican Account

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    Parenting involves an extraordinary degree of power over children. Republicans are concerned about domination, which, on one view, is the holding of power that fails to track the interests of those over whom it is exercised. On this account, parenting as we know it is dominating due to the low standards necessary for acquiring and retaining parental rights and the extent of parental power. Domination cannot be fully eliminated from child-rearing without unacceptable loss of value. Most likely, republicanism requires that we minimise children’s domination. I examine alternative models of child-rearing that are immune to republican criticism

    Reflecting on practice: negotiating challenges to ways of working

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    In this paper I explore some of the issues associated with teaching and researching in the context of dominant/non-dominant group relations. The paper stems from observations, experiences and challenges that I have encountered in researching with indigenous Australians including Aboriginal people from the mainland and Torres Strait Islander people, and teaching undergraduate and post-graduate subjects on cultural diversity. I suggest that guidelines for working in culturally sensitive ways across cultural boundaries are needed and should include issues of power that are implicit in processes of knowledge production (i.e., what we know, how we know, and on whose terms we know) and social identity construction. I also argue that the writing of indigenous authors in Australia, and other contexts, are important resources for promoting critical reflection because it serves to disrupt taken for granted ways of knowing. At a minimum, I suggest, these writings bring into focus the relationships between power and social identities. I focus on the tensions and challenges associated with negotiating the messages conveyed in Aboriginal authors’ writings about self-determination, colonisation and culturally sensitive and transformative practice and research. I locate the reflection within the broader literature base on indigenisation and the development of culturally sensitive psychology. I conclude that engaging in the explication of power associated with social identities in these contexts can be challenging but it is an important part of creating a culturally sensitive psychology