962 resultados para litter fall
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Signatur des Originals: S 36/F07425
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Signatur des Originals: S 36/F07426
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Signatur des Originals: S 36/F07427
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Signatur des Originals: S 36/F07428
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Signatur des Originals: S 36/G02602
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Die Königliche Polnische und Churfürstl. Sächsische Hoff-Comoedianten
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This talk will outline the history of the doctor-patient relationship in the West. It will touch briefly on medicine in Greek and Roman antiquity, using key texts from Hippocrates and Galen. It will also sketch the changing balance of the religious and the secular in medieval medicine. Finally, it will outline the rise of the modern personal doctor-patient relationship in the 18th century and analyze the chronic dissatisfaction that settled over relations between doctors and patients in the last quarter of the 20th century.
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Fil: Jalif de Bertranou, Clara Alicia.
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The fall armyworm (FAW) is the most important threat to corn crops in Argentina, and there exists very little up-to-date information on its actual pest status because the available literature was published more than 20 years ago. Therefore, field surveys were carried out in the northeast of Argentina, in order to establish the attack rates and injury levels of the pest in relation to the crop phenology. The study was carried out at two localities: Colonia Benítez, an agricultural region, and Tapenagá, a cattle-raising area. At each site two 1-ha plots were sown either with a Bt-corn expressing Cry 1F protein or with an untransformed corn germplasm. Optimal and late sowing was assayed and FAW larval abundance, relative age composition, attack rates and level of damage to corn were recorded. At the moment of the field experiments, Bt-corn was not affected by FAW larvae. However, untransformed germplasms were severely affected by FAW larvae, with an average of attacked plants of 18% or more. In contrast to data obtained 30 years ago, higher values of FAW density were registered. Levels of damage to corn plants were higher after the V4 stage. It was found that the sowing date affected the infestation levels and early seeding avoided high armyworm densities that develop later in the season; in northern Argentina, this was only relevant in agricultural areas.
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Fil: Sarachu, Pablo. Universidad Nacional de La Plata. Facultad de Humanidades y Ciencias de la Educación; Argentina.