The Distribution of Boars Spermatozoa in Morphometrically Distinct Subpopulations after In Vitro Exposure to Radiofrequency Electromagnetic Radiation at 2500 MHz and Their Motility.

Anthropogenic radiofrequency electromagnetic radiation (RF-EMR) from wireless technologies has increased dramatically. The boar semen used for artificial insemination is essential in sustaining the pig industry, and additionally it is also exposed to the effects of the RF-EMR of wireless technologies. Furthermore, there are no data on the effects of RF-EMR on semen quality, and this is the first analysis of sperm's morphometric parameters for assessing the effect of RF-EMR on the spermatozoa subpopulations of boars.

Exogenous melatonin influences distribution of French Alpine buck spermatozoa in morphometrically distinct subpopulations during the non-breeding season.

The aim of this study was to establish subpopulations of spermatozoa in bucks using the principal component (PC) and cluster analysis according to morphometric head and tail variables, and to determine differences in proportions of subpopulations between exogenous melatonin-treated and control bucks. The bucks (n = 12) were assigned to two groups comprising six bucks each. By the end of March, four melatonin implants were inserted in the bucks in the experimental group.

The Sirius project.

The lattice design and beam dynamics optimization for Sirius, a new low-emittance synchrotron light source presently under construction at the Brazilian Synchrotron Light Laboratory (LNLS) in Campinas, Brazil, is presented. The electron storage ring is based on a five-bend achromat (5BA) design achieving a bare lattice emittance of 0.28 nm rad for a 3 GeV beam.

Using the internet to translate an evidence-based lifestyle intervention into practice.

Despite evidence-based recommendations for addressing obesity in the clinical setting, lifestyle interventions are lacking in practice. The objective of this study was to translate an evidence-based lifestyle program into the clinical setting by adapting it for delivery via the Internet. We adapted the Diabetes Prevention Program's lifestyle curriculum to an online format, comprising 16 weekly and 8 monthly lessons, and conducted a before-and-after pilot study of program implementation and feasibility.

The key to life nutrition program: results from a community-based dietary sodium reduction trial.

Objective: Evaluation of a dietary Na reduction trial in a community setting.

Design: Community-based randomized trial. Ten-week nutrition intervention activities focused on lifestyle modification to decrease dietary Na intake, under the supervision of a registered dietitian.