889 resultados para Heterogeneity of the evolutionary process


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This paper examines gender as a moderator of the fair-process effect in an ultimatum game setting. Results from games with 112 German high-school students support the hypothesis that fair procedures can decrease rejection behavior in unfair human allocation decisions. Furthermore, procedural fairness results in a statistically significant difference for women in accepting an unfair distribution. In contrast, procedural fairness appears to have no significant impact on men’s rejection behavior. However, we found no significant gender differences in the perception of procedural fairness. We conclude that, although men perceive procedural fairness similarly to women, this aspect is less important for determining their subsequent behavior. (PsycINFO Database Record (c) 2013 APA, all rights reserved)

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Congress and the Department of Health and Human Services (DHHS) intend for the Family Preservation and Support Act of 1993 (P.L. 103-66) to catalyze major reforms in state human services systems. DHHS and numerous other institutions developed conceptual and procedural guidance for the states' planning processes. Review of the planning dimensions of participation and expertise reveals that major emphases on stakeholder participation and technical planning processes obscure the need for expertise in family preservation and family support.

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The political brinkmanship of the Liberation Tigers of the Tamil Eelam has been illustrated vividly by the way in which it brought forward its proposals for an Interim Self-Governing Authority by exploiting the vulnerabilities of the United National Front Government. In the proposals the LTTE articulated its political intentions in concrete constitutional terms for the first time. The Proposals rationalize the armed struggle and a contractual agreement outside the Constitution. The plenary powers of the ISGA exceed the federal formula; effectively exclude the institutions of the state of Sri Lanka from the North-East; and clear the route for a separate state. This situation demands a redirection of the peace process which requires a clear political vision and a proper strategy with alternative proposals on the part of the government. In the face of present impasse of the peace process the challenges before the new Freedom Alliance government are formidable.

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The paper investigates the possibility of constructing a new measurement for analysing international fragmentation of the production process. It asserts that the current usage of relevant data, whether the trade shares of parts and components or the index of Vertical Specialisation, is quite unsatisfactory for measuring the phenomenon, since they critically lack the overall perspective of the entire structure of production chains.  The new measurement is formulated such that it captures every aspect of the vertical sequence of production linkages. It is based on the input-output model of Average Propagation Lengths, recently developed by Eric Dietzenbacher and others, which show the average number of production stages that are passed through for an exogenous change in one industry to affect another. By applying this model to the data of the Asian International Input-Output Tables, the index is able to measure the international dimension of production sharing and division of labour in East Asia.

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TbxFe1−x thin films deposited by sputtering on Mo were investigated structurally and magnetically. The microstructure consists of TbFe2 nanoparticles embedded in an amorphous matrix, and the Tb content can be correlated with an increase in the volume of these nanoparticles. Similar microstructure and behavior were found when TbFe2 was deposited on glass and on a Pt buffer layer. Nevertheless, thermal treatments promote a different effect, depending on the mechanical stiffness of the buffer layer. The layers deposited on Mo, a rigid material, show crystalline TbFe2 together with α-Tb phase upon thermal treatment. In contrast, TbFe2 does not crystallize properly on Pt, a material with a lower stiffness than Mo. Intermediate results were observed on the film deposited on glass. Experimental results show the impact of the buffer stiffness on the crystallization process. Moreover, the formation of α-Tb appears to be fundamental to crystallized TbFe2 on layers deposited on rigid buffers

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Acute promyelocytic leukemia (APL) is associated with chromosomal translocations always involving the RARα gene, which variably fuses to one of several distinct loci, including PML or PLZF (X genes) in t(15;17) or t(11;17), respectively. APL in patients harboring t(15;17) responds well to retinoic acid (RA) treatment and chemotherapy, whereas t(11;17) APL responds poorly to both treatments, thus defining a distinct syndrome. Here, we show that RA, As2O3, and RA + As2O3 prolonged survival in either leukemic PML-RARα transgenic mice or nude mice transplanted with PML-RARα leukemic cells. RA + As2O3 prolonged survival compared with treatment with either drug alone. In contrast, neither in PLZF-RARα transgenic mice nor in nude mice transplanted with PLZF-RARα cells did any of the three regimens induce complete disease remission. Unexpectedly, therapeutic doses of RA and RA + As2O3 can induce, both in vivo and in vitro, the degradation of either PML-RARα or PLZF-RARα proteins, suggesting that the maintenance of the leukemic phenotype depends on the continuous presence of the former, but not the latter. Our findings lead to three major conclusions with relevant therapeutic implications: (i) the X-RARα oncoprotein directly determines response to treatment and plays a distinct role in the maintenance of the malignant phenotype; (ii) As2O3 and/or As2O3 + RA combination may be beneficial for the treatment of t(15;17) APL but not for t(11;17) APL; and (iii) therapeutic strategies aimed solely at degrading the X-RARα oncoprotein may not be effective in t(11;17) APL.

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The Endangered Species Act of 1973 (ESA) is an exceptionally powerful law which requires the involvement of many stake holders, including government and non-government professionals. This project reviewed the requirements of the ESA and the expectations of the USFWS and referenced them to the actions taken by the petitioner in the preparation of the petition for the black-tailed prairie dog. The study has shown the knowledge required by the petitioner to submit an effective petition and also the importance of communicating this knowledge so that the federal agencies may make sound decisions when deciding to protect a species and its habitat. This research can be used as a preliminary reference for beginning the process for future petitions.

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Europe is in need of a new leadership capacity able to recreate stronger European unity in the external and internal fronts. Otherwise, anti-European forces will increase their influence and presence in European governments and EU institutions with large implications for the direction of European integration. This will be the central concern in making a first short assessment of the recent process of building European leadership capacity for the next five years to come. This assessment will particularly focus on the choice of the President of the European Commission, of the President of the European Council and, finally of the members of the European Commission.

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Originally presented as author's thesis (Ph.d.)-- Clark University, 1910.

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National Highway Traffic Safety Administration, Office of Research and Development, Washington, D.C.

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"Contract AT-30-1-Gen-367."

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pt. 1. Fundamental concepts.--pt. 2. Evolution and creation.--pt. 3. Physical facts.--pt. 4. Life and mind.--pt.5. Moral and spiritual facts.--Appendix A. The new physics.--Appendix B. Matter and energy.--Appendix C. Conservation of mass.--Appendix D. Conservation of energy.

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Mode of access: Internet.