9 research outputs found

    A Survey of non-white social service personnel in the State of Oregon

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    The National Association of Social Workers and the Council on Social Work Education are concerned with the eradication of racism within the social work profession and the nation at large. Graduate schools throughout the country are presently attempting to come to grips with this elusive and pervasive problem. The School of Social Work at Portland State University is among these schools. In early 1972, the Portland State University School of Social Work formalized and adopted a specific policy regarding recruitment, education, and issues concerning non-white students and communities. In doing so, this school became the first School of Social Work in the Northwest, perhaps in the nation, to have a specific, examinable policy covering its position of graduate education for non-whites. However, the genesis of this policy had extended back to 1971 when the need for a specific, consistent policy regarding non-whites and the School was being realized. It was during the subsequent task of developing this policy that the necessity for research in this area was keenly felt. The School of Social Work draws the majority of its students from the State of Oregon, specifically from the metropolitan area in and around Portland. The majority of its graduates choose to remain in Oregon to work. However, it was learned that little or no systematic information was available concerning the needs and programs of the practice community for non-white social service personnel. Since the School is committed both to education and to the service of the community, it became obvious that descriptive and concrete data were necessary. This research practicum is an attempt to examine this heretofore unexplored area in the State of Oregon

    A fuzzy logic method to assess the relationship between landscape patterns and bird richness of the Rolling Pampas

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    The loss of biodiversity in productive ecosystems is a global concern of the last decades. The Rolling Pampas of Argentina is an intensively cropped region that underwent important land use and landscape change, with different impacts on biodiversity of both plants and animals. Land use type and habitat complexity are hypothesized to be the most important factors determining species richness in agro-ecosystems. But it is not easy to define these attributes in an unambiguous fashion, or determine their interactions at different spatial scales. A fuzzy logic approach allows overcoming some of these problems by using linguistic variables and logic rules to relate them and formulate hypothesis. We constructed fuzzy logic models to study how bird species richness in the Rolling Pampas is related to land use and habitat complexity, and how these variables interact at two spatial scales. Results showed that at the local scale, landscape complexity is the most important factor determining species numbers; trees and bodies of water are the most influential complexities. The effect of local scale landscape attributes was modified depending on the context at broader scales, so that agricultural sites were enriched when surrounded by more favorable landscapes. There was a high dispersion in the predicted/observed value relationship, indicating that landscape factors interact in more complex ways than those captured by the models we used. We suggest that the fuzzy logic approach is suitable for working with biological systems, and we discuss the advantages and disadvantages of its use. © 2012 Springer Science+Business Media B.V.Fil: Weyland, Federico. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía; ArgentinaFil: Baudry, Jacques. Institut National de la Recherche Agronomique; FranciaFil: Ghersa, Claudio Marco. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Parque Centenario. Instituto de Investigaciones Fisiológicas y Ecológicas Vinculadas a la Agricultura. Universidad de Buenos Aires. Facultad de Agronomía; Argentin
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