996 resultados para 7140-242


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This study investigates the landscape evolution and soil development in the loess area near Regensburg between approximately 6000-2000 yr BP (radiocarbon years), Eastern Bavaria. The focus is on the question how man and climate influenced landscape evolution and what their relative significance was. The theoretical background concerning the factors that controlled prehistoric soil erosion in Middle Europe is summarized with respect to rainfall intensity and distribution, pedogenesis, Pleistocene relief, and prehistoric farming. Colluvial deposits , flood loams, and soils were studied at ten different and representative sites that served as archives of their respective palaeoenvironments. Geomorphological, sedimentological, and pedological methods were applied. According to the findings presented here, there was a high asynchronity of landscape evolution in the investigation area, which was due to prehistoric land-use patterns. Prehistoric land use and settlement caused highly difIerenciated phases of morphodynamic activity and stability in time and space. These are documented at the single catenas ofeach site. In general, Pleistocene relief was substantially lowered. At the same time smaller landforms such as dells and minor asymmetric valleys filled up and strongly transformed. However, there were short phases at many sites, forming short lived linear erosion features ('Runsen'), resulting from exceptional rainfalls. These forms are results of single events without showing regional trends. Generally, the onset of the sedimentation of colluvial deposits took place much earlier (usually 3500 yr BP (radiocarbon) and younger) than the formation of flood loams. Thus, the deposition of flood loams in the Kleine Laaber river valley started mainly as a consequence of iron age farming only at around 2500 yr BP (radiocarbon). A cascade system explains the different ages of colluvial deposits and flood loams: as a result of prehistoric land use, dells and other minor Pleistocene landforms were filled with colluvial sediments. After the filling of these primary sediment traps , eroded material was transported into flood plains, thus forming flood loams. But at the moment we cannot quantify the extent ofprehistoric soil erosion in the investigation area. The three factors that controlled the prehistoric Iandscapc evolution in the Ioess area near Regensburg are as follows: 1. The transformation from a natural to a prehistoric cultural landscape was the most important factor: A landscape with stable relief was changed into a highly morphodynamic one with soil erosion as the dominant process of this change. 2. The sediment traps of the pre-anthropogenic relief determined where the material originated from soil erosion was deposited: either sedimentation took place on the slopes or the filled sediment traps of the slopes rendered flood loam formation possible. Climatic influence of any importance can only be documented as the result of land use in connection with singular and/or statistic events of heavy rainfalls. Without human impact, no significant change in the Holocene landscape would have been possible.

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In TSPD Pty Ltd v Resortrez Pty Ltd [2008] QSC 001 Fryberg J made an order permitting the applicant to inspect and copy documents which had been produced to the court under a subpoena, but had remained in the registry. Though not essential to the decision the judgment contains some interesting discussion about the construction of r 242 of the Uniform Civil Procedure Rules 1999 (Qld) (UCPR).

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Tesis (Maestro en Ciencias de la Ingeniería Mecánica con Especialidad en Materiales) UANL, 2013.

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A study was undertaken to isolate phytase producers from environment and to segregate the most highly efficient phytase producer and to develop a bioprocess technology for commercial application. During this process, a potential phytase producer Bacillus MCCB 242 was isolated and characterized phenotypically and genotypically. Subsequently, phytase production was optimized, the enzyme purified and characterized and an appropriate downstream process also could be standardized.Precisely, through this work an environmental isolate Bacillus MCCB 242 could be brought out as phytase producer for commercial application. The enzyme production could be optimized and characterized, and an appropriate downstream process standardized. Cytotoxicity studies revealed the enzyme safe for feed application, especially in fish.

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Se especifica la creación, ampliación y mejora de centros debido a la intensificación de la política de promoción y establecimiento de Centros oficiales por toda la geografía española: 8 Institutos Nacionales; 20 Secciones Delegadas; 14 Secciones Filiales; 16 Colegios Libres de Enseñanza Media de Grado Elemental adoptados; la clasificación en otras categorías de Colegios no Oficiales de Enseñanza Media; la autorización de Centros especializados para el Curso Preuniversitario; el reconocimiento de 2 Colegios Menores; se detallan las subvenciones concedidas a los Centros de Enseñanza Media para la creación de nuevos puestos escolares; por último, se detallan algunas obras de interés social en Centros de Enseñanza Media.

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El marco general de este análisis se basa en identificar los más importantes impactos que han tenido las reformas tributarias a partir del Decreto 242 del 29 de diciembre del 2007 sobre la persona natural obligada a llevar contabilidad, tanto sobre su operatividad como su relación con la Administración Tributaria. De las nueve reformas que han existido desde el decreto mencionado, se resaltó aquellas que tienen relación con la “persona natural obligada a llevar contabilidad”. Se realizó de manera general un análisis de cada una de ellas, para posteriormente, mediante cuantificaciones, casos reales y comparativos verificar si el impacto estimado fue significativo. Podemos ver que a la persona natural obligada a llevar contabilidad se le incluye en el mismo andarivel que a las sociedades, obligándole a preparar la misma información de control a la Administración Tributaria, sin que este contribuyente tenga la estructura administrativa, ni el conocimiento personal de las implicación quepor la falta de cumplimiento que las mismas tienen. Finalmente, vemos que la Administración Tributaria ha realizado avances en la implementación de cultura tributaria en busca de concientizar al contribuyente sobre sus deberes con la sociedad al momento de cumplir sus obligaciones, sobre todo en el trabajo con la juventud, por un lado; y por otro en la implementación de acciones para disminuir la evasión. También revisamos casos especiales en países de la región que sugerimos sean aplicados en el Ecuador.