Chlamydia trachomatis infections in female soldiers, Israel.

We examined the prevalence of infection in Israeli female soldiers. The prevalence was 3.2% among soldiers seeking medical care; rural residence was identified as a significant risk factor.

Dynamic aspects concerned with the mechanism of separating motile sperm from nonmotile sperm, leukocytes, and debris with the use of high-density Percoll gradients.

Objective: To investigate the dynamics and the efficacy of separating motile from nonmotile sperm with the use of Percoll gradients as a function of centrifugation time.

Design: In vitro laboratory experiments on human sperm.

Setting: Male Infertility Institute.

Effect of vibroacoustic stimulation on fetal meconium passage in labor.

It has been suggested that vibroacoustic stimulation might be stressful to the fetus. The present study was designed to evaluate whether the stimulus induces passage of meconium in labor. Patients in labor at term with healthy fetuses and intact membranes were randomized to a vibroacoustic stimulation or sham test.

Use of a sealed mini-chamber to investigate human sperm motility in real time under aerobic and anaerobic conditions.

To study the correlation between metabolism and motility, ejaculated human spermatozoa were washed in media containing glucose, pyruvate, and deoxyglucose in various combinations. Spermatozoa suspended in these media were incubated in sealed mini-chambers and subjected to aerobic or anaerobic conditions at 37 degrees C. The effect on the patterns of sperm motility was investigated in real time by direct observation and objective determination with the multiple exposure photography (MEP) method.