hydrogen-charging-of-aluminum-using-friction-in-water

Hydrogen Charging of Aluminum using Friction in Water

A new method of hydrogen charging of aluminum was developed by means of a friction in water (FW) procedure. This procedure can easily introduce high ...

Osaka University

Using responses to questionnaires and results of saliva samples from 40 women, the authors assessed the effects on health of participation in a short leisure trip (2 nights, 3 d) to Kyushu Island in Japan. They addressed transportation, sightseeing, and group activities during the tour, which might differ from participants' usual activities. Levels of the salivary endocrinological stress markers cortisol and chromogranin A (CgA) were determined by enzyme-linked immunosorbent assay (ELISA). In each of the groups with characteristics considered healthy and related to lifestyle, patterns of behavior, perceived stressors, and stress reactions, a decrease in the cortisol levels and an increase in the CgA levels were apparent during the tour. The baseline for stress hormone changes was the levels on awakening on Day 1 (i.e., immediately before the tour). These findings suggest that even short periods of travel can bring about a reduction in di-stress and acquisition of eu-stress, experienced as feeling uplifted or fulfilled.

Medical assessment of the health effects of short leisure trips.

The authors examined periodic changes in endocrinological stress markers in saliva samples collected from 31 women who spent 8 days in a spa resort. Levels of salivary cortisol and chromogranin A (CgA) were evaluated by enzyme-linked immunosorbent assay. To evaluate health-related lifestyle factors, patterns of behavior, perceived stressors, and stress reactions of the subjects, the authors administered written questionnaires. Individuals who scored poorly on an index evaluating lifestyle health factors, or reported stressful life events, showed a significant increase in CgA levels during the stay. This suggests that, for these people, the long stay in the spa ameliorated stress. These findings are somewhat different from those of studies in which researchers have evaluated the effects of shorter-term leisure trips.

Health effects of a long-term stay in a spa resort.

The authors collected saliva samples from 15 married couples and 13 women staying with a female companion (N = 43) during an 8-day stay at a spa resort in Nagano, Japan. To examine changes in endocrinological stress markers, the authors evaluated participants' levels of salivary cortisol and chromogranin A (CgA) by enzyme-linked immunosorbent assay. By the eighth day, women staying with their husbands had significantly increased levels of cortisol and CgA. During the protocol, the authors observed no significant variation in levels of cortisol or CgA for either the women who were staying with same-sex companions or the male spouses. These findings suggest that the effects of long-term stays in a spa resort are more beneficial for married women staying with their husbands than for either married men or women staying with female companions.

Hidetoshi Kobayashi

Department of Mechanical Science and Bioengineering

Osaka University

Hydrogen Charging of Aluminum using Friction in Water

Hidetoshi Kobayashi

.css-o250i3{font-size:18px;font-family:Open Sans,sans-serif;line-height:21.6px;}Department of Mechanical Science and Bioengineering

Osaka University

Hydrogen Charging of Aluminum using Friction in Water

Department of Mechanical Science and Bioengineering