Results 261 to 270 of about 3,770,529 (313)
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A factor to control Medfly sex
Science, 2019Identification of the male-determining factor in invasive fruit flies expands biocontrol ...
Reem, Makki, Victoria H, Meller
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Factors Influencing Sex Ratios
International Journal of Gynecology & Obstetrics, 1970Sperm samples collected from 500 normal men were used to identify mo rphologic types and to determine the influence of certain factors on sex ratio. 2 types have been distinguished: a small roundheaded sperm which probably carries the Y chromosome (producing a male offspring) and a large ovalheaded sperm which carries the X chromosome (producing a ...
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RISK FACTORS DIFFER ACCORDING TO SAME-SEX AND OPPOSITE-SEX INTEREST
Journal of Biosocial Science, 2004Are risk behaviours in adolescence differentiated according to same-sex vs opposite-sex interest? For all respondents a five-point scale of interest in each sex used information from both of the first two in-home waves of the National Longitudinal Study of Adolescent Health (Add Health).
J Richard, Udry, Kim, Chantala
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Sex Pili and the Classification of Sex Factors in the Enterobacteriaceae
Nature, 1967The properties of sex pili determined by different plasmids of the Enterobacteriaceae suggest that there may be only two major classes of sex factor, typified by F and the factor of colicin factor lb.
A M, Lawn +3 more
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Sex-Specific Factors in Stroke
2017Stroke is a sexually dimorphic disease, identified through evidence derived from preclinical and clinical trials. Efficacy of prevention strategies, recognition of symptoms, acute stroke treatment options, and stroke recovery are influenced by sex-specific factors. The terms, “sex” and “gender” are often used interchangeably.
Anjali Chauhan +2 more
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1972
Evoked-response recording has provided a new tool for studying maturation and aging of the central nervous system (CNS). There is also evidence that the method may yield interesting information concerning sex differences. The manner in which responses may vary with age and sex is of obvious methodological importance in psychiatric studies; experimental
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Evoked-response recording has provided a new tool for studying maturation and aging of the central nervous system (CNS). There is also evidence that the method may yield interesting information concerning sex differences. The manner in which responses may vary with age and sex is of obvious methodological importance in psychiatric studies; experimental
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Antinuclear Factor: Age and Sex
American Journal of Psychiatry, 1973G, Mellsop, S, Whittingham
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[Genetic factor of sex determination].
Bulletin de l'Association des anatomistes, 1992We have analyzed 40 cases of human XX male or XX true hermaphrodites negative for Y DNA sequences including ZFY. Among these patients we were able to demonstrate the existence of at least 3 mechanisms. 1) In one case a mosaïscism 46XY/46XX is limited to the gonad and only detected by PCR.
N, Abbas +6 more
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Mathematical Ability: Is Sex a Factor?
Science, 1981C P, Benbow, J C, Stanley
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