950 resultados para character tracing
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Signatur des Originals: S 36/G00096
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Signatur des Originals: S 36/G00594
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by Herbert Loewe
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The purpose of this study was to compare the relative effectiveness of alternative methods of tracing named contacts of syphilis patients. A total of 236 contacts, identified by patients in two City of Houston Department of Health and Human Services clinics during the period April 1 through July 31, 1987, were studied. After contacts were grouped by sex and age, the proportion brought to examination by each of three methods, and by a combination of methods, was determined for each subgroup.^ The study found that 78.4% of all the 236 named sex contacts reported were located and brought to examination by the various methods of contact tracing and that 21.6% were missed. Of the 185 contacts examined, a combination of methods identified 47.7% of the cases, telephone contact, 28.6%, field contact, 16.9%, and patient referral, 11.8%.^ Of the 236 contacts reported, males made up 56.8% and females 43.2%. Contact tracing was more successful among females, with 81.4% of the 102 named female contacts, as compared to 76.1% of the 134 named male contacts being brought to examination. It is not known whether equal efforts were exerted in the follow-up of both male and female contacts. In both female and male subgroups, a combination of methods brought over 40% of sex contacts to examination. Telephone contact among females yielded 27.7% of the cases and field contact 18.1%, whereas in males, telephone contact identified 29.4% of the cases and field contact 15.7%. Patient referral was the least productive method in both sex groups, locating 12.8% in males as compared to 10.8% in females.^ On an age specific basis, a combination of methods was the most effective method in the 15-39 age group, whereas telephone contact was most effective in the 40-44 age group, and field contact in the 50-54 age group. Of all the methods of contact tracing, patient referral was the least productive in most age groups.^ Future studies of contact tracing should incorporate several important variables which were not examined in this study. ^
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The Albian/Cenomanian strata in Hole 530A are organically richer than are the post-Cenomanian strata. Organic matter is thermally immature and appears to be of dominantly marine origin with either variable levels of oxidation or variable amounts of terrestrial input. Geochemical data alone cannot establish whether the black shales present in Hole 530A represent deposition within a stagnant basin or within an expanded oxygen-minimum layer
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Para los estudiosos de Max Aub, ha sido un rompecabezas intentar averiguar cuál es el límite entre la ficción y la realidad en la novela histórica Jusep Torres Campalans, basada en una ingente documentación sobre Picasso y el ambiente artístico parisino previo a 1914. Tendíamos a creer que el personaje de Ana María Merkel, la compañera del pintor, era totalmente inventado, pero esta mujer, coetánea de Max Aub, realmente existió, y la dificultosa búsqueda de su rastro nos descubre la penuria de la imagen de las mujeres artistas en la literatura, fiel reflejo de la tradicional desigualdad en el reconocimiento social de su valía.
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Para los estudiosos de Max Aub, ha sido un rompecabezas intentar averiguar cuál es el límite entre la ficción y la realidad en la novela histórica Jusep Torres Campalans, basada en una ingente documentación sobre Picasso y el ambiente artístico parisino previo a 1914. Tendíamos a creer que el personaje de Ana María Merkel, la compañera del pintor, era totalmente inventado, pero esta mujer, coetánea de Max Aub, realmente existió, y la dificultosa búsqueda de su rastro nos descubre la penuria de la imagen de las mujeres artistas en la literatura, fiel reflejo de la tradicional desigualdad en el reconocimiento social de su valía.
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LECO analysis, pyrolysis assay, and bitumen and elemental analysis were used to characterize the organic matter of 23 black shale samples from Deep Sea Drilling Project Leg 93, Hole 603B, located in the western North Atlantic. The organic matter is dominantly gas-prone and/or refractory. Two cores within the Turonian and Cenomanian, however, contained significant quantities of well-preserved, hydrogen-enriched, organic matter. This material is thermally immature and represents a potential oil-prone source rock. These sediments do not appear to have been deposited within a stagnant, euxinic ocean as would be consistent with an "oceanic anoxic event." Their organic geochemical and sedimentary character is more consistent with deposition by turbidity currents originating on the continental shelf and slope.
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Para los estudiosos de Max Aub, ha sido un rompecabezas intentar averiguar cuál es el límite entre la ficción y la realidad en la novela histórica Jusep Torres Campalans, basada en una ingente documentación sobre Picasso y el ambiente artístico parisino previo a 1914. Tendíamos a creer que el personaje de Ana María Merkel, la compañera del pintor, era totalmente inventado, pero esta mujer, coetánea de Max Aub, realmente existió, y la dificultosa búsqueda de su rastro nos descubre la penuria de la imagen de las mujeres artistas en la literatura, fiel reflejo de la tradicional desigualdad en el reconocimiento social de su valía.
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A nested ice flow model was developed for eastern Dronning Maud Land to assist with the dating and interpretation of the EDML deep ice core. The model consists of a high-resolution higher-order ice dynamic flow model that was nested into a comprehensive 3-D thermomechanical model of the whole Antarctic ice sheet. As the drill site is on a flank position the calculations specifically take into account the effects of horizontal advection as deeper ice in the core originated from higher inland. First the regional velocity field and ice sheet geometry is obtained from a forward experiment over the last 8 glacial cycles. The result is subsequently employed in a Lagrangian backtracing algorithm to provide particle paths back to their time and place of deposition. The procedure directly yields the depth-age distribution, surface conditions at particle origin, and a suite of relevant parameters such as initial annual layer thickness. This paper discusses the method and the main results of the experiment, including the ice core chronology, the non-climatic corrections needed to extract the climatic part of the signal, and the thinning function. The focus is on the upper 89% of the ice core (appr. 170 kyears) as the dating below that is increasingly less robust owing to the unknown value of the geothermal heat flux. It is found that the temperature biases resulting from variations of surface elevation are up to half of the magnitude of the climatic changes themselves.