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BACKGROUND The concept of an equivalence group, a cluster of cells with equal potential to adopt the same specific fate, has served as a useful paradigm to understand neural cell type specification. In the Drosophila eye, a set of five cells, called the 'R7 equivalence group', generates a single photoreceptor neuron and four lens-secreting epithelial cells.(More)
Relationships between coping style and psychological functioning were examined in a heterogeneous community sample (N = 168). Psychological functioning was categorized with the Personality Assessment Inventory (PAI; Morey, 1991). Subjects were assigned to PAI configural profile clusters, using T-scores from PAI clinical scales. Three PAI clusters were(More)
In this study we describe a scheme for numerically calculating the effective diffusivity of cellular systems such as biofilms and tissues. This work extends previous studies in which we developed the macroscale representations of the transport equations for cellular systems based on the subcellular-scale transport and reaction processes. A finite-difference(More)
In this paper, the method of large-scale averaging is used to develop two different one-equation models describing dispersion in heterogeneous porous media. The first model represents the case of large-scale mass equilibrium, while the second represents the asymptotic behavior of a two-equation model obtained by large-scale averaging. It is shown that a(More)
A new type of heat exchange process is described for use in semiconductor heat sinks. It involves the use of subcooled, nucleate boiling at concave curved surfaces where radial acceleration, v/sup 2//r, can be used to develop significant and beneficial buoyancy forces. The system provides a heat transfer surface with a uniform temperature, i.e. the boiling(More)
(Biodegradation modeling of sludge bioreactors of total petroleum hydrocarbons weathering in soil and sediments) 259 Crecimiento, sobrevivencia y adaptación de Bifidobacterium infantis a condiciones ácidas (Growth, survival and adaptation of Bifidobacterium infantis to acidic conditions)Espinosa 265 Statistical approach to optimization of ethanol(More)
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