919 resultados para Investments, American.


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This paper examines the effect of inbreeding level of population on the magnitude of inbreeding depression expressed by comparing them between two cultured populations (A and B) in the hermaphroditic animal of the bay scallop Argopecten irradians irradians. Population A is expected to have less genetic variations and higher inbreeding level due to longer cultured history (20 generations) and less "ancestral" individuals (26 individuals) than population B due to shorter cultured history (4 generations) and more "ancestral" individuals (406 individuals). Two groups within each population were produced, one using self-fertilization and one using mass-mating within the same population. Selfed offspring (AS and BS) from two populations both had lower fitness components than their mass-mated counterparts (AM and BM) and exhibited inbreeding depression for all examined traits, e.g. lower hatching, less viability and slower growth, indicating that inbreeding depression is a common feature in this animal. Fitness components in all traits of offspring from population A significantly differed those from population B and the magnitude of inbreeding depression for all traits in population A with higher inbreeding level was significantly smaller than that in population B with lower inbreeding level, indicating that both fitness components and magnitude of inbreeding depression were significantly affected by inbreeding level of populations and genetic load harbored in population A may be partially purged through inbreeding. Moreover, the magnitude of inbreeding depression in the two populations both varied among traits and life history stages. The present results support the partial-dominance hypothesis of inbreeding depression. (C) 2008 Elsevier B.V. All rights reserved.

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The presumed pair relationships of intercontinental vicariad species in the Podophyllum group (Sinopodophyllum hexandrum vs. Podophyllum pelatum and Diphylleia grayi vs. D. cymosa) were recently, considered to be paraphyletic. In the present paper, the trnL-F and ITS gene sequences of the representatives were used to examine the sister relationships of these two vicariad species. A heuristic parsimony analysis based on the trnLF data identified Diphylleia as the basal clade of the other three genera, but provided poor resolution of their inter-relationships. High sequence divergence was found in the ITS data. ITS1 region, more variable but parsimonyuninformative. has no phylogenetic value, Sequence divergence of the ITS2 region provided abundant, phylogenetically informative variable characters. Analysis of ITS2 sequences confirmeda sister relationship between the presumable vicariad species, in spite of a low bootstrap support for Sinopodophyllum hexandrum vs. Podophyllum pelatum. The combined ITS2 and trnL-F data enforced a sister relationship between Sinopodophyllum hexandrum and Podophyllum pelatum with an elevated bootstrap support of 100%. Based on molecular phylogeny, the morphological evolution of this group was discussed. The self-pollination might have evolved from cross-fertilization two times in this group. The different pollination and seed dispersal systems of Sinopodophyllum hexandrum and Podophlyllum pelatum resulted from their adaptations to different ecological habitats. The divergence time of Sinopodophyllum hexandrum-Podophyllum pelatum is estimated to be 6.52+/-1.89 myr based on the ITS divergence. The divergence of this species pair predated or co-occurred with the recent uplift of the Himalayas 4-3 myr during the late Miocene and the formation of the alpine habitats. Sinopodophyllum hexandrum developed a host of specialized characters in its subsequent adaptation to the arid alpine surroundings. The present study confirmed the different patterns of species relationship between Asian-North American disjuncts. The isolation of plant elements between North America and eastern Asia must have been a gradual process, resulting in the different phylogenetic patterns and divergence times of the disjuncts.

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This paper focuses on the analysis of the relationship between maritime trade and transport cost in Latin America. The analysis is based on disaggregated (SITC 5 digit level) trade data for intra Latin maritime trade routes over the period 1999-2004. The research contributes to the literature by disentangling the effects of transport costs on the range of traded goods (extensive margin) and the traded volumes of goods (intensive margin) of international trade in order to test some of the predictions of the trade theories that introduce firm heterogeneity in productivity, as well as fixed costs of exporting. Recent investigations show that spatial frictions (distance) reduce trade mainly by trimming the number of shipments and that most firms ship only to geographically proximate customers, instead of shipping to many destinations in quantities that decrease in distance. Our analyses confirm these findings and show that the opposite pattern is observed for ad-valorem freight rates that reduce aggregate trade values mainly by reducing the volume of imported goods (intensive margin).

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Vaughan, J. (2005). The Failure of American and British Propaganda in the Arab Middle East, 1945-1957: Unconquerable Minds. Basingstoke: Palgrave Macmillan. RAE2008

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Woods, Timothy, The Poetics of the Limit (New York: Palgrave Macmillan, 2003) RAE2008

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Padget, Martin, 'Travels in the American Southwest', Journal of the Southwest (2004) 44 (2) pp.413-440 RAE2008

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Padget, M. (2004). Indian Country: Travels in the American Southwest. Albuquerque: University of New Mexico Press. RAE2008

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Forsyth, Alison, 'Re-defining the Dream on the American Stage', In: 'American Dreams: Dialogues in US Studies', Ricardo Miguez (ed), (Newcastle upon Tyne: Cambridge Scholars Press), pp.207-233, 2007 RAE2008

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O'Malley, T. (2007). Typically Anti-American?: The Labour movement, America and Broadcasting in Britain from Beveridge to Pilkington, 1949-62. In J. Wiener and M. Hampton (Eds.), Anglo- American Media Interactions,1850-2000 (pp.234-253). Basingstoke: Palgrave Macmillan. RAE2008

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Autor książki: Wielka szachownica. Cele polityki amerykańskiej (Warszawa 1998) postrzega stosunki wzajemne pośród uczestników areny międzynarodowej jako wielką szachownicę, na której toczy się pomiędzy nimi „Wielka Polityka” (gra). Sytuacja światowa rozgrywa się, według niego, na jednej szachownicy (arenie międzynarodowej), a uczestnicy „gry” zajmują pozycje pionków. Jest to, więc swoista partia szachów, gdzie silniejszy zdobywa prestiż, pieniądze i władzę, natomiast słabszy przegrywa wszystko, osiągając marginalne znaczenie na globalnej szachownicy. Z kolei J. Nye eksponuje trzy płaszczyzny tej samej szachownicy, a mianowicie: potęgę militarną, gospodarczą oraz „miękkie środki oddziaływania politycznego”, wokół których toczy się polityka międzynarodowa. Jego trylogia poświęcona postrzeganiu potęgi państw powinna być lekturą obowiązkową, skierowaną przede wszystkim do polityków i mężów stanu, z przesłaniem, aby wskazane przez autora czynniki siły stosowali w praktyce, co pomoże im lepiej władać państwem. Jest to także książka przeznaczona dla wszystkich zainteresowanych polityką i jej zagadnieniami związanymi z percepcją potęgi. W niniejszej rozprawie naukowej skoncentrowałam się na trzech najważniejszych książkach J. Nye’a, stanowiących analizę atrybutów potęgi i wyjaśniających jej znaczenie. Są to: Bound to Lead. The Changing Nature of American Power (New York 1991), The Paradox of American Power. Why the World’s Only Superpower Can’t Go It Alone (Oxford 2002) oraz Soft Power. The Means to Success in World Politics (New York 2004; wyd. polskie: Soft Power. Jak osiągnąć sukces w polityce światowej, Warszawa 2007). Stanowią one podstawę do zrozumienia percepcji pojęcia potęgi Stanów Zjednoczonych. Choć autora zajmują także kwestie innych państw, to jednak właśnie mocarstwowość USA jako najpotężniejszego kraju na świecie, posiadającego wszelkie czynniki wzmacniające jego potęgę (władzę), stanowi podstawę rozważań J. Nye’a.

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The purpose of the project is to research the shape and influence of religion and spirituality in the lives of U.S. adolescents; to identify effective practices in the religious, moral, and social formation of the lives of youth; to describe the extent to which youth participate in and benefit from the programs and opportunities that religious communities are offering to their youth; and to foster an informed national discussion about the influence of religion in youth's lives, in order to encourage sustained reflection about and rethinking of our cultural and institutional practices with regard to youth and religion.

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The purpose of the project is to research the shape and influence of religion and spirituality in the lives of U.S. adolescents; to identify effective practices in the religious, moral, and social formation of the lives of youth; to describe the extent to which youth participate in and benefit from the programs and opportunities that religious communities are offering to their youth; and to foster an informed national discussion about the influence of religion in youth's lives, in order to encourage sustained reflection about and rethinking of our cultural and institutional practices with regard to youth and religion.

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The purpose of the project is to research the shape and influence of religion and spirituality in the lives of U.S. adolescents; to identify effective practices in the religious, moral, and social formation of the lives of youth; to describe the extent to which youth participate in and benefit from the programs and opportunities that religious communities are offering to their youth; and to foster an informed national discussion about the influence of religion in youth's lives, in order to encourage sustained reflection about and rethinking of our cultural and institutional practices with regard to youth and religion.

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This report demonstrates that religion among U.S. adolescents is positively related to participation in constructive youth activities. In addition, those who participate in religious activities seem to be less likely to participate in many delinquent and risk behaviors.