منابع مشابه
Chemokine Signaling: Rules of Attraction
The chemokine SDF-1 and its receptor CXCR4 control cell migration in the immune and nervous systems. Recent studies in zebrafish have shown that SDF-1 and CXCR4 also guide the migration of germ cells and sensory organs of the lateral line.
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The security system of the body against pathogenic invaders includes leukocytes that efficiently scan the organism. Leukocytes within the vasculature utilize the comprehensive circulatory system to examine the blood vessels of the entire body for signs of e.g. bacteria displayed on vascular endothelial cells. Upon infection, a successful immune response is dependent on prompt recruitment of leu...
متن کاملAttraction rules: germ cell migration in zebrafish.
The migration of zebrafish primordial germ cell towards the region where the gonad develops is guided by the chemokine SDF-1a. Recent studies show that soon after their specification, the cells undergo a series of morphological alterations before they become motile and are able to respond to attractive cues. As migratory cells, primordial germ cells move towards their target while correcting th...
متن کاملComplement Extraction Lexical Rules and Argument Attraction
In (M uller, 1994), several problems with the processing of complement extraction lexical rules (CELRs) (Pollard and Sag, 1994, Ch. 9) are discussed. CELRs destroy the ordering information implicitly contained in the comps list, making it impossible to assign structural case without default mechanisms (which would be an extension of the basic HPSG formalism). Furthermore, it can be shown that...
متن کاملBasins of Attraction and Equilibrium Selection Under Different Learning Rules
A deterministic learning model applied to a game with multiple equilibria produces distinct basins of attraction for those equilibria. In symmetric two-by-two games, basins of attraction are invariant to a wide range of learning rules including best response dynamics, replicator dynamics, and fictitious play. In this paper, we construct a class of three-by-three symmetric games for which the ov...
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ژورنال
عنوان ژورنال: Nature Reviews Neuroscience
سال: 2011
ISSN: 1471-003X,1471-0048
DOI: 10.1038/nrn3001