There are few experimental investigations of the natural coital process in human subjects; the relatively small literature on this topic deals mainly with extracoital orgasm. Boas & Goldschmidt (1932) made simultaneous recordings of the heart rate of a man and woman in coitus. There was a peak in the heart rate of the woman with each of her four orgasms, and of the man with ejaculation. Mendels...

BACKGROUND Previous studies have shown that personality characteristics affect sexual functioning. The aim of this exploratory study was to assess and describe the relationship between global personality traits and the stereotypical femininity and masculinity levels with the broad aspects of sexual behaviours and attitudes in the group of 97 heterosexual young adult men aged 19-39 and living in...

OBJECTIVES Use of withdrawal (coitus interruptus) has consequences for reproductive health, but few nationally representative studies exist. We (1) examined patterns of withdrawal among 15- to 24-year-old women and men, and (2) explored withdrawal's associations with sociodemographic, psychological, and sexual factors. STUDY DESIGN Using data from the 2006-2010 National Survey of Family Growt...

Charles Savona-Ventura Department of Obstetrics Gynaecology University of Malta Medical School Mater Dei University Hospital, Malta [email protected] Abstract Temporal surveys of family control methods being used within the Maltese setting carried out in the 1970's and 1990's had shown a definite shift towards the more effective methods of contraception. The present study was car...

BACKGROUND In Curaçao is a high incidence of unintended pregnancies and induced abortions. Most of the induced abortions in Curaçao are on request of the woman and performed by general practitioners. In Curaçao, induced abortion is strictly prohibited, but since 1999 there has been a policy of connivance. We present data on the relevance of economic and socio-cultural factors for the high abort...

BACKGROUND Epidemiologic research has shown that perimenopausal contraception is an important medical issue, because women during the perimenopause still need effective contraception. The objective of the study was to assess the contraceptive choices of perimenopausal Turkish women. METHODS This is a descriptive cross-sectional study that in a non - random fashion recruited 202 perimenopausal...

Heterosexual behaviour is a complex subject and one which is aggravated by confounding variables. Few studies have investigated the way in which one variable, namely coitus, is initiated and negotiated in stable marital relationships. As the HIV/AIDS pandemic spreads in sub-Saharan Africa, the subject of marital coitus becomes of increasing concern. This study tests a methodology of semi-struct...

Large conductance Ca(2+)-activated potassium (BK) channels play important roles in controlling neuronal excitability. We cloned the PISlo gene encoding BK channels from the spiny lobster, Panulirus interruptus. This gene shows 81-98% sequence identity to Slo genes previously found in other organisms. We isolated a number of splice variants of the PISlo cDNA within Panulirus interruptus nervous ...

The need to withhold anticoagulation in patients requiring elective surgery poses a particularly important challenge when the risk of thrombosis and thromboembolism is high. In spite of the increasing use of prosthetic heart valves and the increasing prevalence of atrial fibrillation in the aging population, Kovacs et al1 make the important point in this issue of Circulation that there is a pau...