Knowledge-based intervention improves older adult recognition memory for novel activity, but not event segmentation or temporal order memory.

Although episodic memory declines with age, older adults are often able to make use of relevant knowledge to support episodic memory. More specifically, prior knowledge may support the perception of meaningful events through the process of event segmentation. We sought to test whether increasing older adults' knowledge for novel activities (i.

Using the Rapid Upper Limb Assessment to examine the effect of the new Hotel Housekeeping California Standard.

A housekeeper's job includes a variety of repetitive and strenuous tasks, which can put workers at high risk for musculoskeletal disorders. In 2018, a new standard was implemented in California aiming to prevent work-related injuries of hospitality industry workers. This paper assesses California housekeepers performing regular work tasks during their shifts from 2018 to 2020.

Occupation and Semen Parameters in a Cohort of Fertile Men.

Objective: We examined associations between occupation and semen parameters in demonstrably fertile men in the Study for Future Families.

Methods: Associations of occupation and workplace exposures with semen volume, sperm concentration, motility, and morphology were assessed using generalized linear modeling.

Results: Lower sperm concentration and motility were seen in installation, maintenance, and repair occupations.

Interactive effects of multiple stressors on the physiological performance of the invasive mussel Mytilus galloprovincialis.

The invasive mussel Mytilus galloprovincialis is a heat-tolerant species relative to its competative congener M. trossulus, that dominates warm seawater environments but it is unknown how multiple stressors (MS) may affect its physiology. Our study determined the effects of MS on the metabolic rate (MR), superoxide dismutase (SOD) antioxidant enzyme activity, and clearance rate (CR) of M.

Alcohol and male reproductive health: a cross-sectional study of 8344 healthy men from Europe and the USA.

Study Question: Is there an association between alcohol intake and semen quality and serum reproductive hormones among healthy men from the USA and Europe?

Summary Answer: Moderate alcohol intake is not adversely associated with semen quality in healthy men, whereas it was associated with higher serum testosterone levels.

What Is Known Already: High alcohol intake has been associated with a wide range of diseases. However, few studies have examined the correlation between alcohol and reproductive function and most have been conducted in selected populations of infertile men or have a small sample size and the results have been contradictory.

Semen parameters in fertile US men: the Study for Future Families.

Establishing reference norms for semen parameters in fertile men is important for accurate assessment, counselling and treatment of men with male factor infertility. Identifying temporal or geographic variability in semen quality also requires accurate measurement of semen parameters in well-characterized, defined populations of men. The Study for Future Families (SFF) recruited men who were partners of pregnant women attending prenatal clinics in Los Angeles CA, Minneapolis MN, Columbia MO, New York City NY and Iowa City IA.

Effect of maternal coffee, smoking and drinking behavior on adult son's semen quality: prospective evidence from the Child Health and Development Studies.

Fetal exposure to caffeine is associated with adverse pregnancy outcomes. Animal and human studies suggest that caffeine may have effects on the developing reproductive system. Here we report on mothers' smoking, coffee and alcohol use, recorded during pregnancy, and semen quality in sons in the age group of 38-47 years.

Serum inhibin-b in fertile men is strongly correlated with low but not high sperm counts: a coordinated study of 1,797 European and US men.

Objective: To describe associations between serum inhibin-b and sperm counts, adjusted for effect of time of blood sampling, in larger cohorts than have been previously reported.

Design: Cross-sectional studies of spermatogenesis markers.

Setting: Four European and four US centers.

Practical semen analysis: from A to Z.

Accurate semen analysis is critical for decisions about patient care, as well as for studies addressing overall changes in semen quality, contraceptive efficacy and effects of toxicant exposure. The standardization of semen analysis is very difficult for many reasons, including the use of subjective techniques with no standards for comparison, poor technician training, problems with proficiency testing and a reluctance to change techniques. The World Health Organization (WHO) Semen handbook (2010) offers a vastly improved set of standardized procedures, all at a level of detail that will preclude most misinterpretations.

Semen quality in fertile men in relation to psychosocial stress.

Objective: To examine the association between stressful life events and semen parameters.

Design: Cross-sectional analysis in a pregnancy cohort study.

Setting: Prenatal clinics in five U.

Semen quality of fertile US males in relation to their mothers' beef consumption during pregnancy.

Unlabelled: BACKGROUND To look at possible long-term risks from anabolic steroids and other xenobiotics in beef, we examined men's semen quality in relation to their mother's self-reported beef consumption during pregnancy.

Methods: The study was carried out in five US cities between 1999 and 2005. We used regression analyses to examine semen parameters in 387 partners of pregnant women in relation to the amount of beef their mothers reported eating while pregnant.

Is running performance enhanced with creatine serum ingestion?

Runners Advantage (RA) creatine (Cr) serum has been marketed to increase running performance. To test this claim, cross-country runners completed baseline testing (BASE), an outdoor 5,000-m run followed by treadmill Vo(2)max testing on the same day. Subjects repeated testing after ingesting 5 ml of RA (n = 13) containing 2.

Quality control of laboratory methods for semen evaluation in a multicenter research study.

Rigorously standardized laboratory protocols and strict quality control (QC) are essential for meaningful comparisons between semen quality data from multiple sites. We describe our experience with the Study for Future Families (SFF), a multicenter study of semen quality in the United States. Detailed protocols were developed, and technicians from each study site attended a training session at the central laboratory.

Standardized methods for semen evaluation in a multicenter research study.

Semen evaluation methodology is complex and difficult to standardize. Rigorously standardized laboratory protocols and strict quality control (QC) are essential for meaningful comparison of data from multiple sites. We describe the methods used for determination of semen volume, sperm concentration, and percent sperm motility in the Study for Future Families, a multicenter study of semen quality in the United States.

Semen quality in relation to biomarkers of pesticide exposure.

We previously reported reduced sperm concentration and motility in fertile men in a U.S. agrarian area (Columbia, MO) relative to men from U.

Geographic differences in semen quality of fertile U.S. males.

Although geographic variation in semen quality has been reported, this is the first study in the United States to compare semen quality among study centers using standardized methods and strict quality control. We evaluated semen specimens from partners of 512 pregnant women recruited through prenatal clinics in four U.S.

Epidemiologic studies of human semen quality: considerations for study design.

Few empirical data exist on the characteristics of subjects who provide semen specimens in epidemiologic studies. The objective of this investigation was to determine participation rates and potential biases in a contemporary study of human semen quality. Subjects (n = 268) are a subset of the Child Health and Development Studies.

Sperm morphology, motility, and concentration in fertile and infertile men.

Background: Although semen analysis is routinely used to evaluate the male partner in infertile couples, sperm measurements that discriminate between fertile and infertile men are not well defined.

Methods: We evaluated two semen specimens from each of the male partners in 765 infertile couples and 696 fertile couples at nine sites. The female partners in the infertile couples had normal results on fertility evaluation.

The sharing of injecting paraphernalia by intravenous drug users (IDUs) within a Worcestershire cohort, with specific reference to water and filters.

Britain continues to have a drug misuse health strategy that is HIV led. Because of this, little attention has been paid to other blood-borne viruses such as hepatitis. Moreover, while the provision of needle exchange schemes has been particularly successful in containing the spread of HIV, they have had less impact on the prevalence of hepatitis within IDU cohorts.

Use of botulinum toxin to prevent facial nerve stimulation following cochlear implantation.

Facial nerve stimulation can develop because of the electric fields generated from an activated cochlear implant. This problem can usually be ameliorated by reducing or eliminating the current through the electrodes causing the undesirable stimulation. Occasionally there may be numerous electrodes that have to be deactivated in order to eliminate the facial nerve stimulation, and this may result in a marked reduction of auditory benefit to the cochlear implant user.

Sperm-immunobead binding decreases with in vitro incubation.

Objective: To characterize the stability of the sperm-immunobead association over time.

Design: Prospective evaluation of sperm-immunobead binding, using direct and indirect assays.

Setting: Male Infertility Clinic, University of California, Davis, Davis, California.