منابع مشابه
Local diversity reduces infection risk across multiple freshwater hostparasite associations
1. In many host–parasite systems, infection risk can be reduced by high local biodiversity, though the mitigating effects of diversity are context dependent and not universal. 2. In aquatic ecosystems, local fauna can reduce the transmission success of parasite free-swimming infective stages by preying on them, acting as decoy hosts, or physically interfering with transmission. However, most pr...
متن کاملPower Imbalance in Collaboration Relationships
Power plays a significant role in many organizational theories such as resource dependency theory and transaction cost economics. It allows the strong companies to win more than others, or more broadly, to coerce others to do what they would not otherwise do. Power can seriously affect the confidence and commitment between parties. This paper aims to analyze the power concept in inter-organizat...
متن کاملStable Causal Relationships are Better Causal Relationships
We report two experiments investigating whether people’s judgments about causal relationships are sensitive to the robustness or stability of such relationships across a wide range of background circumstances. We demonstrate that people prefer stable causal relationships even when overall causal strength is held constant, and we show that this effect is unlikely to be driven by a causal general...
متن کاملRelationships Between Relationships: An Empirical Study
Since Chen published the E/R model in 1976, some proposals extending its expressive power have appeared, some of them are based in the preceding semantic models. Thus, currently, some conceptual models allow relationships between relationships and even generalizations of relationships. These proposals could be better understood if relationships are considered as object types allowing other poss...
متن کاملMapping Dependency Relationships into Semantic Frame Relationships
We describe the refactoring process of the RelEx2Frame component of OpenCog AGI Framework, a method for expanding concept variables used in RelEx and automatic generation of a common sense knowledge base specifically with relation to concept relationships. The wellknown Drools rule engine is used instead of hand-coded rules; an asynchronous concurrent architecture and an indexing mechanism are ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1958
ISSN: 0028-0836,1476-4687
DOI: 10.1038/1821352a0