969 resultados para c-index


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In this document the results and the reflections brought about by the research for the standardization of the verbal comprehension index of Wechsler scale subtests for measuring adult intelligence, WAIS -III for the general population from 16 to 24 years for the city of La Plata , using the collective administration modality are reported In this opportunity, the performance of 229 students from secondary school from 16 to 18 years, both genders, is being analyzed in the information subtest, as well as that of 155 university and non-university tertiary students from 19 to 24 years, both genders in the same subtest The information subtest is of particular interest because of the implication of previous knowledges in the text comprehension and the personal transferable skills. Given the responses, the analysis allow to make some observations a) there are no statistically significant differences between the individual and the collective administration, by gender and b) the average of correct responses for both age groups is the same but the score distribution shows a greater homogeneity in the group from 16 to18 years.

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Nos preocupa dilucidar la manera en que los militares de mayor rango se hicieron propietarios en la sociedad de frontera (o viceversa, las posibilidades que ofrecía un cargo militar para acceder a la propiedad rural); las redes sociales que establecieron; las disputas entre civiles y militares por el control del territorio, de la población y por la primacía de su autoridad en la resolución de conflictos. Este trabajo se concentra en el papel desempeñado por las autoridades militares desde que se fundó Chascomús, en 1779, y mientras fue asiento de las tropas que defendían la frontera (c. 1815), incluyendo también el contrapunto entre los intereses locales y regionales en la transición del Antiguo Régimen a la independencia

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Fil: Fernández, Nancy. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

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In this document the results and the reflections brought about by the research for the standardization of the verbal comprehension index of Wechsler scale subtests for measuring adult intelligence, WAIS -III for the general population from 16 to 24 years for the city of La Plata , using the collective administration modality are reported In this opportunity, the performance of 229 students from secondary school from 16 to 18 years, both genders, is being analyzed in the information subtest, as well as that of 155 university and non-university tertiary students from 19 to 24 years, both genders in the same subtest The information subtest is of particular interest because of the implication of previous knowledges in the text comprehension and the personal transferable skills. Given the responses, the analysis allow to make some observations a) there are no statistically significant differences between the individual and the collective administration, by gender and b) the average of correct responses for both age groups is the same but the score distribution shows a greater homogeneity in the group from 16 to18 years.

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Nos preocupa dilucidar la manera en que los militares de mayor rango se hicieron propietarios en la sociedad de frontera (o viceversa, las posibilidades que ofrecía un cargo militar para acceder a la propiedad rural); las redes sociales que establecieron; las disputas entre civiles y militares por el control del territorio, de la población y por la primacía de su autoridad en la resolución de conflictos. Este trabajo se concentra en el papel desempeñado por las autoridades militares desde que se fundó Chascomús, en 1779, y mientras fue asiento de las tropas que defendían la frontera (c. 1815), incluyendo también el contrapunto entre los intereses locales y regionales en la transición del Antiguo Régimen a la independencia

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Fil: Fernández, Nancy. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.

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In this document the results and the reflections brought about by the research for the standardization of the verbal comprehension index of Wechsler scale subtests for measuring adult intelligence, WAIS -III for the general population from 16 to 24 years for the city of La Plata , using the collective administration modality are reported In this opportunity, the performance of 229 students from secondary school from 16 to 18 years, both genders, is being analyzed in the information subtest, as well as that of 155 university and non-university tertiary students from 19 to 24 years, both genders in the same subtest The information subtest is of particular interest because of the implication of previous knowledges in the text comprehension and the personal transferable skills. Given the responses, the analysis allow to make some observations a) there are no statistically significant differences between the individual and the collective administration, by gender and b) the average of correct responses for both age groups is the same but the score distribution shows a greater homogeneity in the group from 16 to18 years.

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Nos preocupa dilucidar la manera en que los militares de mayor rango se hicieron propietarios en la sociedad de frontera (o viceversa, las posibilidades que ofrecía un cargo militar para acceder a la propiedad rural); las redes sociales que establecieron; las disputas entre civiles y militares por el control del territorio, de la población y por la primacía de su autoridad en la resolución de conflictos. Este trabajo se concentra en el papel desempeñado por las autoridades militares desde que se fundó Chascomús, en 1779, y mientras fue asiento de las tropas que defendían la frontera (c. 1815), incluyendo también el contrapunto entre los intereses locales y regionales en la transición del Antiguo Régimen a la independencia

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Understanding the role of atmospheric CO2 during past climate changes requires clear knowledge of how it varies in time relative to temperature. Antarctic ice cores preserve highly resolved records of atmospheric CO2 and Antarctic temperature for the past 800,000 years. Here we propose a revised relative age scale for the concentration of atmospheric CO2 and Antarctic temperature for the last deglacial warming, using data from five Antarctic ice cores. We infer the phasing between CO2 concentration and Antarctic temperature at four times when their trends change abruptly. We find no significant asynchrony between them, indicating that Antarctic temperature did not begin to rise hundreds of years before the concentration of atmospheric CO2, as has been suggested by earlier studies.

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Sediments from Deep Sea Drilling Project Sites 615, 617, 618, 619, and 620-623 were subjected to pyrolysis. The sediments are immature with respect to petroleum generation as determined by production index values of less than 0.1 and Tmax values of 460-480°C. The amount of pyrolyzable organic matter was moderately low as compared to typical petroleum source rocks. The immature organic matter present does not appear to contain a significant proportion of woody material as shown by the low gas-generating potential. Typical overbank sediments from Sites 617 and 620 generally show higher P2 values (500-800 µg hydrocarbon per g dry weight sediment) than typical channel-fill sediments from Sites 621 and 622 (P2 = 450-560 µg/g). Tmax for both types of sediment remained very constant (462-468 °C) with a slight elevation (+ 15°C) occurring in samples containing lignite. The highest P2 values occurred in sections described as turbidites. Very low P2 values (about 50 µg/g) occurred in sands. P2 values for shallower sections of basin Sites 618 and 619 tended to be higher (900-1000 µg/g) and decreased in deeper, more terrigenous sections of Site 619. Preliminary experiments indicate that microbiological degradation of sediment organic matter causes a decrease in P2. Pyrolyzable organic matter from lower fan Site 623 appears to increase with depth in two different sediment sequences (40-85 and 95-125 m sub-bottom). Organic matter type, as shown by pyrolysis capillary gas chromatography (GC) patterns, was generally the same throughout the well, with much more scatter occurring in the deepest sections (130-155 m sub-bottom). One major and two minor organic matter types could be recognized in both fan and basin sites drilled on Leg 96.

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Ocean Drilling Program (ODP) Site 1151 (Sacks, Suyehiro, Acton, et al., 2000, doi:10.2973/odp.proc.ir.186.2000) is located in an area where the surface water mass is influenced by both the Kuroshio and Oyashio Currents. The site also receives a relatively high flux of detrital materials from riverine input from Honsyu Island and eolian input from Central and East Asia. We analyzed alkenones and alkenoates in the sediments to reconstruct alkenone unsaturation index (Uk'37)-based sea-surface temperature (SST), total organic carbon, and total nitrogen to estimate the terrigenous contribution by the C/N ratio during the last glacial-interglacial cycle. The major elements were also analyzed to examine the variation in terrigenous composition.