Results 221 to 230 of about 33,154 (273)
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Hair casts: Classification, staining characteristics, and differential diagnosis
Journal of the American Academy of Dermatology, 1983Considerable confusion exists in the literature regarding hair casts. A variety of different disorders have been grouped and reported as if they were a single entity. This nonspecificity in terminology accounts for the vast discrepancy in their reported incidence, size, configuration, etc. A specific classification for hair casts is proposed to clarify
M J, Scott, H H, Roenigk
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Differential Effects of Cast Shadows on Perception and Action
Perception, 2004In two experiments we investigated the effects of cast shadows on different real-life tasks. In experiment 1, participants were required to make a speeded verbal identification of the target object (perceptual task), whereas in experiment 2 participants were required to reach for and grasp the target object (motor task). In both experiments real three-
Bonfiglioli, Claudia +2 more
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Caste differentiation inAugochlorella (Hymenoptera, Halictidæ)
Insectes Sociaux, 1965The presence of two castes, the egglayers or queens and the nonegglayers or workerlike females, is demonstrated inA. striata andA. persimilis although the castes are poorly defined. One or more queens may be present in a nest during the spring, at which time all individuals of the colony may perform all nesting activities including the collecting of ...
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Caste Differentials in South India
American Sociological Review, 1954NDIA has what is undoubtedly one of the most complex and highly differentiated social structures of any modern society. This differentiation stems not from a wide variety of official associations and bureaucratic structures, as in the West, but mainly from the interrelated systems of caste, family, and religion.
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Differential Cryptanalysis of Blow-CAST-Fish
2010Blow-CAST-Fish is a sixteen-round Feistel cipher in which the F function is a part of the private key. In this paper, we show that the disclosure of F allows perform a differential cryptanalysis against a number of rounds. We firstly identify the properties of F function with three active S-boxes to construct the 6-round differential characteristic ...
Xiaoling Sun, Meiqin Wang
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Caste differentiation in lower termites
2010Soziale Insekten sind bedeutende Modellorganismen der Evolutionsbiologie. Ihre Kasten sind ein Beispiel phänotypischer Plastizität, wobei die großen Unterschiede zwischen den Kasten auf differentieller Genexpression beruhen. Die hochkomplexen Strukturen sozialen Lebens dieser Insekten sind durch eine reproduktive Arbeitsteilung und vielfältige ...
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Volume Ray Casting with Peak Finding and Differential Sampling
IEEE Transactions on Visualization and Computer Graphics, 2009Direct volume rendering and isosurfacing are ubiquitous rendering techniques in scientific visualization, commonly employed in imaging 3D data from simulation and scan sources. Conventionally, these methods have been treated as separate modalities, necessitating different sampling strategies and rendering algorithms.
Knoll, A. +5 more
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Molecular Basis Underlying Caste Differentiation in Termites
2010Termite caste differentiation is a multifaceted process that is under the control of a range of intrinsic and extrinsic factors, and it has challenged researchers for decades. Advances in molecular, genomic, and integrative or “systems” biology in the past decade have greatly facilitated efforts to begin to understand this process.
Toru Miura, Michael E. Scharf
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Differentially expressed regulatory genes in honey bee caste development
Naturwissenschaften, 2001In the honey bee, an eminently fertile queen with up to 200 ovarioles per ovary monopolizes colony level reproduction. In contrast, worker bees have only few ovarioles and are essentially sterile. This phenotype divergence is a result of caste-specifically modulated juvenile hormone and ecdysteroid titers in larval development.
C, Hepperle, K, Hartfelder
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Hormonal control of caste differentiation in termites
Ethology Ecology & Evolution, 1991The factors of normal development and polymorphism act on the juvenile hormone-moulting hormone couple. The caste formation and organs differentiation (mandibles, ovaries, wings, sexual characters) are an answer to the hormonal fluctuations in the haemolymph.
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