业余爱好者
发表于 2025-3-26 22:36:36
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国家明智
发表于 2025-3-27 01:21:14
Peter Berlitonsiderable confusion. Thus we may talk of specificity of nerve connections and of neuronal specificity; and these two usages have quite different meanings. By’ specificity of nerve connections’ we mean that nerve fibres make predictably particular and selective connections. The phrase, ‘neuronal sp
syring
发表于 2025-3-27 07:29:37
Peter Berlitonsiderable confusion. Thus we may talk of specificity of nerve connections and of neuronal specificity; and these two usages have quite different meanings. By’ specificity of nerve connections’ we mean that nerve fibres make predictably particular and selective connections. The phrase, ‘neuronal sp
凹槽
发表于 2025-3-27 10:35:32
Peter Berlitonsiderable confusion. Thus we may talk of specificity of nerve connections and of neuronal specificity; and these two usages have quite different meanings. By’ specificity of nerve connections’ we mean that nerve fibres make predictably particular and selective connections. The phrase, ‘neuronal sp
乳白光
发表于 2025-3-27 13:57:53
Peter Berlit control of NK cell activity depends on a subtle balance between inhibitory and activating signals; accordingly, every mature NK cell should bear at least one type of dominant inhibitory receptor for a self MHC class I product, thus preventing autoreactivity against normal cells. Recognition of H-2
Soliloquy
发表于 2025-3-27 18:41:30
Peter Berlitrget, the host has two complementary cytotoxic mechanisms at its disposal: cytotoxic T lymphocytes (CTL) and natural killer (NK) cells. NK cells are not antigen specific in the classical sense and can be activated within hours without specific priming. In contrast, CTLs are induced by specific pepti
Exclude
发表于 2025-3-28 01:19:16
Peter Berlit control of NK cell activity depends on a subtle balance between inhibitory and activating signals; accordingly, every mature NK cell should bear at least one type of dominant inhibitory receptor for a self MHC class I product, thus preventing autoreactivity against normal cells. Recognition of H-2
alcoholism
发表于 2025-3-28 03:25:40
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牵索
发表于 2025-3-28 07:57:19
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corpus-callosum
发表于 2025-3-28 12:00:57
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