منابع مشابه
Sungwook Lee and Khin Maung Maung
Self-dual instantons in S − × S + are studied, where S − × S + is the conformal compactification of the semi-Euclidean space R.
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1. The reaction time of Mya to light is composed of two parts. The first, a sensitization period, is an exceedingly short interval of the order of magnitude associated with photographic processes. The second is a latent period of about 1.3 seconds, during which Mya need not remain exposed to the stimulating light. 2. The process of dark adaptation in Mya is orderly. Its progress may be represen...
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IT is a matter of common observation that lamellibranch molluscs may close the valves of their shell by a fairly rapid twitch-like contraction of the adductor muscles, and may thereafter in certain circumstances relax the adductors, immediately allowing the valves to gape, while in other circumstances these muscles may be maintained for a considerable time in the shortened state even when large...
متن کاملThe Nature of the Latent Period in the Photic Response of Mya Arenaria
The latent period in the response of Mya to illumination varies inversely as the duration of the exposure to which it is subjected. The reciprocal of the latent period, measuring the velocity of the process which underlies it, is a linear function of the exposure period. Since the duration of the exposure represents the amount of photochemical activity, it is concluded that the substances forme...
متن کاملThe Effect of Temperature on the Latent Period in the Photic Response of Mya Arenaria
1. The effect of temperature on the reaction time of Mya to light is mainly confined to the latent period. The sensitization period, representing a photochemical process, is changed comparatively little. 2. The relation between the latent period and the temperature is adequately expressed by the Arrhenius equation, for temperatures below 21 degrees C. Above this temperature, the latent period b...
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ژورنال
عنوان ژورنال: The Journal of Asian Studies
سال: 1999
ISSN: 0021-9118,1752-0401
DOI: 10.1017/s0021911800011190