نتایج جستجو برای: specialization
تعداد نتایج: 14435 فیلتر نتایج به سال:
Darwin's Principle of Divergence explains sympatric speciation as gradual and directional. Contradicting evidence suggests that species' traits evolve saltationally. Here, we model coevolution in exploiter-victim systems. Victims (resource population) have heritable, mutable cue phenotypes with different levels of defense. Exploiters have heritable, mutable perceptual phenotypes. Our simulation...
We analyze optimal financial contracts when the specificity of investments is endogenous. Specialization decreases the liquidation value of assets, but improves the asset’s long-term productivity. While the former is known to make financing more difficult, we show that the latter can ease financing constraints and increase financing capacity by improving an entrepreneur’s incentive to repay. Th...
Software components o er numerous advantages in terms of development, but may give rise to ine ciency due to highly generic implementations. Program specialization can automatically remove overheads due to overly generic implementations, but requires inspection of the source code. To retain the advantages of black-box software components, we propose black-box program specialization: specializat...
This article provides an account of early theory and research on hemispheric specialization. It begins by tracing theory and research on localization of function that set the stage for the discovery of hemispheric specialization. After that, it describes the studies of Paul Broca, John Hughlings-Jackson, and others on hemisphere specialization and reviews some of the proposed explanations for t...
By using the data of Chinese manufacturing enterprises between 1999 and 2009, the specialization and diversification of China’s exports are calculated. The relationship between financial development and the specialization of export and diversification of exports were studied by using dynamic panel data. It is found that financial credit development could significantly improve specialization of ...
A growing body of behavioral studies has demonstrated that women's hemispheric specialization varies as a function of their menstrual cycle, with hemispheric specialization enhanced during their menstruation period. Our recent high-density electroencephalogram (EEG) study with lateralized emotional versus neutral words extended these behavioral results by showing that hemispheric specialization...
Availability of data in a program determines compu tation stages Incremental partial evaluation exploit these stages for optimization it allows further special ization to be performed as data become available at later stages The fundamental advantage of incremental specialization is to factorize the specialization process As a result specializing a program at a given stage costs considerably le...
Program specialization has been proposed as a means of improving constraint-based analysis of infinite state reactive systems. In particular, safety properties can be specified by constraint logic programs encoding (backward or forward) reachability algorithms. These programs are then transformed, before their use for checking safety, by specializing them with respect to the initial states (in ...
Ecological communities that experience stable climate conditions have been speculated to preserve more specialized interspecific associations and have higher proportions of smaller ranged species (SRS). Thus, areas with disproportionally large numbers of SRS are expected to coincide geographically with a high degree of community-level ecological specialization, but this suggestion remains poorl...
The evolution of ecological specialization is expected to carry a cost, due to either antagonistic pleiotropy or mutation accumulation. In general, it has been difficult to distinguish between these two possibilities. Here, we demonstrate that the experimental evolution of niche-specialist genotypes of the bacterium Pseudomonas fluorescens that colonize the air-broth interface of spatially stru...
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