Therefore, faecal samples from an entire herd of elands, including calves and adult females and males, were examined monthly over a one year period. Almost 84% of the animals were found to be positive for gastrointestinal nematodes. Strongyle-type eggs were most frequently detected (prevalence ...
OBJECTIVE: To determine the prevalence of asthma in cohorts of Finnish young men in the period 1926-89. DESIGN: A retrospective analysis using reports and ... T Haahtela,H Lindholm,F Bjorksten,... - Bmj 被引量: 844发表: 1990年 Prevalence and treatment of asthma in the Michigan Medicaid...
This study evaluated the effects of sex education on 48 couples in which the women reported secondary orgasmic dysfunction. None of the males had a problem with premature ejaculation or with erectile dysfunction. Couples received two, two-hour sessions of sex education during a one-week period. ...
By restricting the analysis to the last 7 years of the study, it was possible to include the highly polymorphic Pgm-2 locus. During the 7-year period, 653 offspring representing 208 litters were trapped following emergence from the natal burrow. However, electrophoretic data were available at ...
Postnatal treatments abolished and inverted these differences. It is suggested that the AOB development is influenced by sex steroids during at least a postnatal period.关键词: sex differences accessory olfactory bulb vomeronasal system DOI: 10.1016/0165-3806(84)90036-1 被引量: 127 年份: 1984 ...
Between 25 and 60 weeks old, trabecular bone volume decreased by 25 per cent in sections of free thoracic vertebrae (T5) from female birds, the loss occurring at an earlier age in caged birds. Over the sample period, Tsv in male caged birds diminished by 35 per cent, but male floor ...
This study proposes a simple model for explaining changes in attitudes toward premarital sex. It used the fact that new cohorts of 18-year-olds had the same attitudes in the 1970s, 1980s, and 1990s to argue against any linear period effe... DJ Harding,C Jencks - 《Public Opinion Quarterl...
The effects of sex and ethnicity on plasma lipoprotein changes that occur with low-fat diets were studied in 34 African American subjects (20 women, 14 men) and 29 white subjects (13 women, 16 men) aged 25-62 y with moderate hypercholesterolemia. A baseline diet containing 37% fat (15% ...
Sex and the preimplantation embryo: implications of sexual dimorphism in the preimplantation period for maternal programming of embryonic development The developmental program of the embryo displays a plasticity that can result in long-acting effects that extend into postnatal life. In mammals, adult phe...
Sex and the preimplantation embryo: implications of sexual dimorphism in the preimplantation period for maternal programming of embryonic development The developmental program of the embryo displays a plasticity that can result in long-acting effects that extend into postnatal life. In mammals, adult phe...