Primers targeting two non-neutral major histocompatibility complex (mhc) II β genes were developed and assayed across several disjoint Sacramento perch Archoplites interruptus sampling locations. Variability at the two mhc loci among sampling stocks strongly correlated to previous estimates with neutral markers, suggesting that the effect of genetic drift was not limited to neutrally evolving r...

The objective of the study was to test the hypothesis that gender can be preselected by timing coitus in relation to ovulation, the marker of ovulation being the Peak symptom according to the Billings Method. A blind prospective study of 99 couples wishing to preselect the sex of their child was conducted in Nigeria, using the Post-Peak approach of Billings Method for males and Pre-Peak for fem...

An ethnographic picture of certain aspects of maternal and child care among the Tagalogs who inhabit the municipality of Bay, Laguna, Philippines is presented. The objective is to illustrate empirically that traditional practices associated with maternal and child care are not guesswork. Maternal and child care is an important aspect of folk medicine in Bay. Measures to prevent miscarrage, t...

The aim of this study was to determine the incidence of N. gonorrhoae (NG) and/or C. trachomatis (CT) in acute mucopurulent cervicitis (MPC). The study included 617 non-pregnant women with MPC, who had not been receiving any antimicrobial treatment. The average age of patients was 22.2 years. There were no statistically significant differences according to place of residence, education, and mar...

Preimplantation embryo development was studied in the golden hamster (Mesocricetus auratus). Three groups of regularly cycling female hamsters were used: (I) 30 nulliparous young female (NYF) hamsters; (II) 24 nulliparous adult female (NAF) hamsters and (III) 30 multiparous adult female (MAF) hamsters. Female hamsters were mated with male hamsters of proven fertility. Only 15 min were allowed f...

OBJECTIVE To understand gender differences in sexual behaviours in response to genitourinary symptoms. METHODS 473 (239 female and 234 male) subjects were enrolled at an STD clinic regardless of symptoms or infection status. Subjects completed a 30 day calendar recall interview of genitourinary symptoms, coital activity, sexual partners, and condom use. RESULTS Of the total of 473 participa...

A needle-tipped polyvinyl catheter or subminiature pressure transducer was implanted in the corpus cavernosum penis (CCP), corpus spongiosum penis (CSP), or bulbus glandis to determine the pressure during coitus in 42 dogs. Silver ring electrodes were implanted in the ischiocavernosus (IC) and bulbospongiosus (BS) muscles to monitor the electromyographic (EMG) activity of these muscles. The CCP...

DOI: 10.1097/BRS.0000000000000518 Study Design. Repeated measures design. Objective. To describe male spine movement and posture characteristics during coitus and compare these characteristics across 5 common coital positions. Summary of Background Data. Exacerbation of pain during coitus due to coital movements and positions is a prevalent issue reported by low back pain patients. A biomechani...

BECKETT,S.D., R. S. HUDSON, II. F. WALKER, T.M. REYNOLDS, AND R. 1. VACHON. Blood pressure and penib muscle activity in the stallion during coitus. Am. J. Physiol. 225(5): 1072-1075. 1973.Electromyographic (EMG) electrodes were implanted in the ischiocavernosus (IC) and bulbocavernosus (BC) muscles of the Shetland stallion to monitor muscle activity. A needle-tipped polyvinyl catheter or submin...