Zobrazeno 1 - 10
of 42
pro vyhledávání: '"Ralph Wichterman"'
Autor:
Ralph Wichterman
Publikováno v:
Science (New York, N.Y.). 103(2662)
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::967799352a64c30a4dc520c3cbd9c03e
https://pubmed.ncbi.nlm.nih.gov/21007659
https://pubmed.ncbi.nlm.nih.gov/21007659
Autor:
Ralph Wichterman
Publikováno v:
BioScience. 32:884-887
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d43622e8fc8fc546e86ca2357be4b31c
https://doi.org/10.1093/bioscience/32.11.884-b
https://doi.org/10.1093/bioscience/32.11.884-b
Autor:
Ralph Wichterman
Publikováno v:
BioScience. 22:281-289
The early history of irradiators and dosimetry applied to protozoa is discussed. The effects of radiation on dividing protozoa cells is also covered. The effects of flow dosages (as contrasted with high dosage rates) and technical data for the Failla
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c260c76d5442dcdf885b2dc0893a54e3
https://doi.org/10.2307/1296415
https://doi.org/10.2307/1296415
Autor:
Ralph Wichterman, Frank H. J. Figge
Publikováno v:
The Biological Bulletin. 106:253-263
1. Irradiation with x-rays markedly increases the viscosity of the protoplasm of Paramecium caudatum; greater dosages lead to irreversible coagulation. With increased irradiation, paramecia become immobilized, become broadly ellipsoidal and settle on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b6af4b93e54563c789f4a72281c98940
https://doi.org/10.2307/1538717
https://doi.org/10.2307/1538717
Autor:
Ralph Wichterman
Publikováno v:
The Journal of Protozoology. 14:49-58
SYNOPSIS. The marine ciliate Euplotes cristatus Kahl (Ciliophora, Hypotrichida), collected off Capri, Gulf of Naples, is described in detail. From populations, 6 different mating types, representing 1 variety or syngen, have been isolated. The breedi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d7ccf693578ea28b7f722c360946ed7e
https://doi.org/10.1111/j.1550-7408.1967.tb01446.x
https://doi.org/10.1111/j.1550-7408.1967.tb01446.x
Autor:
Ralph Wichterman
Publikováno v:
The Journal of Protozoology. 1:54-59
Unstable micronuclear behavior was investigated in an unusual race of Paramecium caudatum. Lines were begun, after isolating single vegetative specimens, to yield mass cultures. After study of living specimens in the precision micro-compression chamb
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::abd59fce8d38d44e67abb4eb82520091
https://doi.org/10.1111/j.1550-7408.1954.tb00793.x
https://doi.org/10.1111/j.1550-7408.1954.tb00793.x
Autor:
Ralph Wichterman
Publikováno v:
Journal of Morphology. 66:423-451
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::023cd68e2b39c6bfea1a702d0b3f20a3
https://doi.org/10.1002/jmor.1050660303
https://doi.org/10.1002/jmor.1050660303
Autor:
Ralph Wichterman
Publikováno v:
Journal of Morphology. 60:563-611
A cytological study of the complete life cycle of Nyctotherus cordiformis (Ehr.) Stein, a heterotrichous ciliate from the large intestine of tadpole and adult Hyla versicolor hosts is presented. In division a partial dedifferentiation of parental ing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::51748be77324b376baae026379a496b5
https://doi.org/10.1002/jmor.1050600212
https://doi.org/10.1002/jmor.1050600212
Autor:
Ralph Wichterman
Publikováno v:
The American Journal of Tropical Medicine and Hygiene. :67-75
The confusion which exists among parasitologists, protozoologists and medical men concerning the validity of species of Nyctotherus reported to be parasitic in man prompted this investigation. It is hoped that a better understanding will be the resul
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2dc71e014a0a2a11d8e189cfbb2f6bc
https://doi.org/10.4269/ajtmh.1938.s1-18.67
https://doi.org/10.4269/ajtmh.1938.s1-18.67
Autor:
Ralph Wichterman
Publikováno v:
Parasitology. 26:163-166
In 1904, Bezzenberger investigated ciliates from the rectum of several amphibian hosts of Asia and described two new species of Nyctotherus, N. macropharyngeus and N. magnus. Recently Dashi Nie (1932) described two more new species, N. nankingensis a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b96cb4ad2459722b7081d4351eb4d4a5
https://doi.org/10.1017/s0031182000023507
https://doi.org/10.1017/s0031182000023507