نتایج جستجو برای: perfect specialization
تعداد نتایج: 60452 فیلتر نتایج به سال:
Intrahousehold Specialization in Housework in the United States and Denmark Objective: Focusing on housework activities, we construct a gender neutral composite index measure of intrahousehold specialization. We hypothesize that the degree of specialization is influenced by economic notions of efficiency, as well as by time constraints and egalitarian values. Methods: Employing time use data on...
In Nature, the embryogenesis process proceeds from a single fertilized cell through division, migration, specialization and apoptosis. Although a lot is known about development, we still have a long way to go from theories of pattern formation towards understanding the intelligence within an unsupervised manufacturing process which robustly assembles complex biological forms. Our approach has b...
A specialization semilattice is a structure which can be embedded into $(\mathcal P(X), \cup, \sqsubseteq )$, where $X$ topological space, $ x y$ means $x \subseteq Ky$, for $x,y X$, and $K$ closure in $X$. Specialization semilattices posets appear as auxiliary structures many disparate scientific fields, even unrelated to topology. In general, not expressible semilattice. On the other hand, we...
Patterns of ecological specialization offer invaluable information about ecosystems. Yet, specialization is rarely quantified across several ecological niche axes and variables beyond the link between morphological and dietary specialization have received little attention. Here, we provide a quantitative evaluation of ecological specialization in a coral reef fish assemblage (f. Acanthuridae) a...
Niche breadth of species has been hypothesized to be associated with species' responses to disturbance. Disturbance is usually believed to affect specialists negatively, while generalists are believed to benefit from disturbance; we call this the "specialization-disturbance" hypothesis. We also propose an associated hypothesis (the "specialization-asymmetry-disturbance" hypothesis) under which ...
Species-rich tropical communities are expected to be more specialized than their temperate counterparts. Several studies have reported increasing biotic specialization toward the tropics, whereas others have not found latitudinal trends once accounting for sampling bias or differences in plant diversity. Thus, the direction of the latitudinal specialization gradient remains contentious. With an...
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