1,036 research outputs found

    Effects of recombinant human erythropoietin in the cuprizone mouse model of de- and remyelination

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    A history of secondary education in Indiana 1920-1930

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    Not Available.McKinley HagemeyerNot ListedNot ListedMaster of ScienceDepartment Not ListedCunningham Memorial library, Terre Haute, Indiana State University.isua-thesis-1936-hagemeyer.pdfMastersTitle from document title page. Document formatted into pages: contains 113p. : ill. Includes bibliography

    Population Dynamics and Dispersal Coalitions in the Cooperatively Breeding Acorn Woodpecker

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    Dispersal is a critical life-stage with consequences not only for the individual, but for population dynamics and thus the fate of the whole species. The creation of dispersal coalitions can lead to complex outcomes and affect how changes in abundance occur on the landscape. I examined population dynamics and dispersal coalitions in a population of cooperatively breeding acorn woodpeckers in central California, USA. Using a 34-year dataset on occupancy and abundance, I determined that increases in abundance were determined by dispersal to new locations. This resulted in increased occupancy, rather than increases in group size and larger coalitions. I then examined vocal recruitment via simulated breeding vacancy conflicts to determine whether vocal signaling was sufficient to recruit individuals to a simulated conflict. Despite using recordings of conflict vocalizations, individuals exhibited a territorial response to these simulations, rather than responding as if to a breeding vacancy. Finally, I examined observed coalition sizes during breeding vacancy conflicts relative to those inferred from historical records of group composition following breeder turnover. Coalition dissolution after the conclusion of an observed conflict was common in non-breeders, suggesting that indirect fitness benefits are a major driver of coalition participation. Surprisingly, individuals with breeding positions often participated in these conflicts but did not remain with the coalition following the successful acquisition of the new breeding position. This flips the paradigm of cooperative breeding, with helping behavior directed from breeders to their non-breeding kin and offspring, thus leading breeders to gain indirect and direct fitness benefits through improving the reproductive success of their so-called helpers . Overall, as resources increase, the population expands by taking advantage of previously marginal habitat in non-combative dispersal events, primarily by single individuals rather than coalitions. Marginal habitat does not appear to attract coalition visits, even with simulated vocalizations of dispersal conflicts. Dispersal conflicts occur primarily at high-quality habitat and involve the majority of same-sex relatives residing at the home territory, even those with breeding positions

    Sex-Obsessed or Just Sociable? Non-Copulatory Displays in the Hamerkop

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    [First Paragraph] Non‐copulatory sexual behavior is surprisingly common among animals ranging from insects to vertebrates. Although sometimes considered unusual or aberrant within a species, in some taxa non‐copulatory sexual behavior is widespread, and may even represent the majority of sexual behavior. Such behavior can also happen in many other contexts, including accidental contact, courtship, social bonding, and social structuring (Bagemihl 1999). © by the Ecological Society of Americ

    Formulações, polidez e preservação da face na interação em tribunais: um estudo de caso

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    This article aims to analyse how formulations, politeness, and facework are employed by speakers to achieve specific purposes in courtroom interaction. The theoretical framework is based on the concepts of conversation analysis and forensic linguistics, and the corpus consists of the trial of Jodi Ann Arias, which received widespread media attention in the United States. The excerpts under analysis were taken from the final day of the prosecutor’s cross-examination and from a reporter’s transcript of proceedings, both available on the Internet. It is important to highlight that these devices contribute to construct, enhance, threaten, or weaken people’s image involved in this kind of context.Este estudo tem o objetivo de analisar o modo como as formulações, polidez e preservação da face são empregadas pelos falantes para a obtenção de objetivos específicos na interação em tribunais. O aporte teórico está fundamentado nos conceitos da Análise da Conversação e da Linguística Forense, e o corpus é formado pelo julgamento de Jodi Ann Arias, que recebeu grande atenção da mídia nos Estados Unidos. Os excertos analisados foram obtidos no último dia de inquirição cruzada do promotor e em uma transcrição do processo, ambas disponíveis na Internet. Vale ressaltar que esses mecanismos contribuem para construir, realçar, ameaçar ou enfraquecer a imagem das pessoas nesse tipo de contexto

    A developmental study of temporal judgment

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    Temporal disorganization is a symptom of disorder manifested by both the aged psychotic and the harmless sanile. The purpose of this study is to investigate the relationship of temporal judgment, specifically the adult human’s ability to judge the passage of time accurately, to chronological age. The study was suggested by a prominent geriatrician who conjecture as to whether the disability to estimate and to order time effectively was a dysfunction peculiar to senility and its gradual deterioration even in normal human beings in the ability to judge time accurately. Using a time estimation test requiring judgement of various intervals of filled and unfilled past-time, a representative sample of normal persons, age 15 to 95 years, who are in good health and living actively in a rural community as determined by a questionnaire, were tested to determine the relationship of chronological age to the ability to judge time accurately
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