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Akademický článek
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Publikováno v:
International Journal of Radiation Biology. 70:229-235
Effects of 60Co gamma-rays and 252Cf neutrons on human sperm chromosomes were studied using our interspecific in vitro fertilization system to estimate relative biological effectiveness (RBE) of neutrons. Semen samples were exposed to 0.5, 1.0 and 2.
Publikováno v:
JOURNAL OF APPLIED PHYSICS. 103(9):093701-093701-5
The plasma etching damage in p-type GaN has been characterized. From current-voltage and capacitance-voltage characteristics of Schottky diodes, it was revealed that inductively coupled plasma (ICP) etching causes an increase in series resistance of
Publikováno v:
Progress in clinical and biological research.
Autor:
K. Mikamo, Hiroyuki Tateno
Publikováno v:
International Journal of Radiation Biology and Related Studies in Physics, Chemistry and Medicine. 49:121-130
In neonatal Chinese hamsters, all oocytes on day 0 after birth are at pachytene and ovarian X-irradiation with 1 Gy causes no acute oocyte killing. The same treatment on day 4, however, kills all diplotene-dictyate oocytes within 48 h, and consequent
Autor:
S. Sugawara, K. Mikamo
Publikováno v:
Cytogenetic and Genome Research. 35:34-40
The effects of maternal aging on the configuration of chiasmata, formation of univalents, and segregation of first meiotic (MI) chromosomes were investigated in young (5–8 mo) and old (16 19 mo) Chinese hamsters. Primary oocytes were collected only
Publikováno v:
Reproduction. 81:119-125
The interspecific in-vitro fertilization system using zona-free hamster ova was adopted to distinguish chromosomally between X- and Y-bearing bull spermatozoa. Frozen semen samples were thawed and washed with modified BWW medium including 0.3% BSA (p
Autor:
K Mikamo, S Sugawara
Publikováno v:
Cytogenetic and Genome Research. 28:251-264
The in vivo genomic mutagenicity of colchicine in Chinese hamster primary oocytes was analyzed at a carefully chosen dose that did not completely arrest the formation of the first meiotic spindle but exhibited a remarkable ability to induce nondisjun