منابع مشابه
Fusion Gains Independence
Elevated intracellular Ca 2+ concentrations [Ca 2+ ] appear to be a rather universal trigger of massive membrane ca-pacitance increases, presumably refl ecting exocytosis of tiny vesicles (Borgonovo et al., 2002). The [Ca 2+ ] required to stimulate this response is very high. In this issue Yaradanakul et al. (see p. 29) report experiments with baby hamster kidney (BHK) cells expressing the Na +...
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Independence – the study of what is relevant to a given problem of reasoning – is an important AI topic. In this paper, we investigate several notions of conditional independence in propositional logic: Darwiche and Pearl’s conditional independence, and two more restricted forms of it, called strong conditional independence and perfect conditional independence. Many characterizations and proper...
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Humans are well used to appreciating the beauty of flowers, and breeding them to heighten their attractions but we remain largely ignorant of their seeds, something that can also be of stunning beauty, although often on an microscopic scale. A new book, Seeds: Time Capsules of Life, hopes to help redress this perception and raise awareness of conservation issues at a time of unprecedented press...
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Visuospatial competencies are related to performance in mathematical domains in adulthood, but are not consistently related to mathematics achievement in children. We confirmed the latter for first graders and demonstrated that children who show above average first-to-fifth grade gains in visuospatial memory have an advantage over other children in mathematics. The study involved the assessment...
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ژورنال
عنوان ژورنال: Journal of General Physiology
سال: 2008
ISSN: 1540-7748,0022-1295
DOI: 10.1085/jgp.200810050