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pro vyhledávání: '"Charles L. Ralph"'
Autor:
Charles L. Ralph
Publikováno v:
The Pineal Gland ISBN: 9780429280931
Comprehensive reviews dealing with the embryology, morphology, vascularization, innervation, and cytology of avian pineal glands are available. Among species of birds, the morphology and cytology of the pineal gland are remarkably varied. According t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f98f00f6ee5817042e09c12a245c5106
https://doi.org/10.1201/9780429280931-2
https://doi.org/10.1201/9780429280931-2
Autor:
Charles L. Ralph
Publikováno v:
The American Biology Teacher. 58:142-146
Autor:
Charles L. Ralph
Publikováno v:
The American Biology Teacher. 57:308-312
Electronic media are new tools that teachers are adding to the already conventional overhead transparencies, slides or video films (Falk & Carlson 1992). Videodiscs are one of the best of the new media in that they store a very large number of images
Autor:
Daniel More, Charles L. Ralph
Publikováno v:
Journal of Educational Technology Systems. 21:79-84
At Colorado State University we designed an experiment wherein approximately half of a class of 184 students in a semester, first-year biology class was placed in a traditional hands-on, experiential laboratory for two hours per week and the other ha
Publikováno v:
Endocrinology. 97:1373-1378
Pineal serotonin N-acetyltransferase activity and melatonin content exhibit marked daily changes in chickens; peak values occur during the period of low locomotor activity which coincides with dark in a 24-hour light-dark cycle. The photic and neural
Publikováno v:
American Zoologist. 19:273-293
The pineal complex may be a part of the sensory and central neural system controlling thermoregulatory behavior. The pineal and parapineal organs of some ectotherms appear to function as radiation dosimeters, regulating exposure to sunlight. Physiolo
Publikováno v:
Journal of Experimental Zoology. 206:263-270
Trout retinae were shown to contain melatonin, which was present in highest (p
Publikováno v:
Acta Zoologica. 66:55-60
The brain of an adult, female manatee (Trichechus manatus) was prepared for histological examination of the region of the diencephalon and mesencephalon, where the pineal body typically would be located. Careful examination of hematoxylin-eosin stain
Publikováno v:
General and Comparative Endocrinology. 40:180-187
A melatonin radioimmunoassay was validated for the green sea turtle. A pronounced diurnal rhythm of melatonin content was evident in both serum and cerebrospinal fluid (CSF). In immature turtles, CSF melatonin levels paralleled those in serum but wer
Autor:
Charles L. Ralph
Publikováno v:
American Zoologist. 23:597-605
Pineal bodies, and other associated parietal structures, are remarkably varied among vertebrates These organs apparently assumed, in the primitive vertebrates, a principal role in integration of photic information. The pineal photoreceptor cell seems