All issues
Volume 30, Issue 1
Displaying 1-6 of 6 articles from this issue
- |<
- <
- 1
- >
- >|
-
S MATSUDA, H KAHYO1993 Volume 30 Issue 1 Pages 9-17
Published: April 01, 1993
Released on J-STAGE: October 13, 2010
JOURNAL FREE ACCESSSeasonal variation of average daily number of births by month in Tokyo was examined by a traditional time series analysis based on the data in Vital Statistics from January 1974 to December 1983. The seasonal index of the first births showed a bimodal pattern with peaks in September and December, and troughs in June and November. In the case of the subsequent births, the index was a unimodal pattern with a peak in May to July and a trough in early three months of the year. This finding suggests that the underlying causal factors are different between the first births and the subsequent births. Among associated factors to be evaluated, the seasonality in marriages was related to the seasonal variation in the first births. The lagged correlation analysis explored that correlation coefficients between the time series of the first births and that of marriages had peaks at lag time of 9+12×n months (n=0, 1, 2, 3) . This result suggests that the seasonality in marriages is one of factors to explain the seasonality in the first births in the present study.View full abstractDownload PDF (1010K) -
Y OHTSUKA, N YABUNAKA, I WATANABE, Y AGISHI1993 Volume 30 Issue 1 Pages 19-24
Published: April 01, 1993
Released on J-STAGE: October 13, 2010
JOURNAL FREE ACCESSTo elucidate the underlining mechanism of balneotherapy, we immersed men at 3 different water temperatures for 10 min and investigated the glutathione metabolism in red blood cells. At 39°C, no remarkable changes were observed. Levels of reduced glutathione (GSH) decreased and those of lipid peroxides (LPO) increased immediately after the immersion at 42°C. On the contrary, levels of GSH increased after the immersion at 25°C, and those of LPO showed no changes. The activities of glutathione reductase (both active and inactive forms) did not change after the immersion at 42°C, whereas those of active form increased at 25°C. The activities of glutathione peroxidase decreased after the immersion at 42°C, while those activities increased at 25°C. From these findings, it is suggested that heat and cold stress have the different effects on erythrocyte glutathione metabolism. If the similar phenomenon occurs in a whole body, these various effects can cooperate and contribute to the thermotherapy.View full abstractDownload PDF (747K) -
Y HASEBE, M IRIKI1993 Volume 30 Issue 1 Pages 25-32
Published: April 01, 1993
Released on J-STAGE: October 13, 2010
JOURNAL FREE ACCESSOur previous study demonstrated that the decrease of foot skin temperature in response to mild cold stimuli is smaller when subjects wear socks than when they do not (Hasebeet al., 1991) . To clarify whether the smaller decrease in foot skin temperature in feet covered with socks is caused by an increase in skin blood flow or by an insulating effect of socks, skin blood flow responses to cold stimuli were observed in 8 healthy young men in a climatic chamber (26±0.5°C) . Skin temperatures and skin blood flow were monitored with or without socks in the glabrous area of the first toe before, during and after exposure of both feet to 9°C cool air for 20 min. Although in both conditions, skin temperatures decreased significantly during cooling, the temperature of skin coverd with socks was significantly higher than that of naked skin during cooling. In both conditions, there were no differences in mean skin blood flow before, during or after cooling. During cooling, there was no difference between mean skin blood flow with and without socks. The results suggest that changes in blood flow are unlikely to explain the smaller decrease in skin temperature of feet wearing socks during mild cooling. Rather it is probably due to the insulating effect of socks.View full abstractDownload PDF (896K) -
Masami HIRASHITA, Tetsuo NAGASAKA, Minoru TANABE1993 Volume 30 Issue 1 Pages 33-38
Published: April 01, 1993
Released on J-STAGE: October 13, 2010
JOURNAL FREE ACCESSSeven young male volunteers were subjected to passive body warming in a climatic chamber (air temperature, 28°C; relative humidity, 40%) . Passive body warming was induced by placing the subjects in a box-shaped body warming unit enclosing all but the subject's head. While raising body core temperatures, tympanic (Tty) and esophageal (Tes) temperatures, forehead skin blood flow (Qsk), forehead sweating rate (msw) and blood flow through the angular oculi-ophthalmic vein (Qov) were continuously monitored. At the start of body warming, Ttywas 36.74±0.14°C which was slightly higher than Tes. During body warmng, Ttyand Tesrose almost linearly, but the rate of rise in Teswas higher than that of Tty. Qskand mswincreased linearly until Ttyreached about 37.24±0.08°C and 37.47±0.07°C and then levelled off. Mean skin temperature reached about 37°C and maintained. In some subjects, Qskand msw reached complete plateau levels even when temperatures were still rising. Qovwas increased to a great extent after the levelling-off of the heat loss responses occurred. When this occurred, the rate of increase in Ttywas suppressed to a slight extent. These results indicate that further rise of brain temperature would not affect the heat loss responses, once the levelling-off occurs in the hyperthermia. We, thus, suggest that the fall in brain temperature by the selective brain cooling would not suppress the heat loss responses as far as skin temperature is high and brain temperature is within the range of temperature at which the heat loss responses remain at their maximum levels.View full abstractDownload PDF (786K) -
Yves Rossetti, Jean Dalery1993 Volume 30 Issue 1 Pages 39-42
Published: April 01, 1993
Released on J-STAGE: October 13, 2010
JOURNAL FREE ACCESSMonthly rates of anxiolytic, hypnotic, neuroleptic and antidepressant drugs prescription to inpatients were calculated over 2 years within a group of non-psychiatric hospitals. Annual cycles were observed for all drugs independently of patient admissions. The annual rhythms of anxiolytic prescription with an autumn peak and a spring trough may reflect the annual variation of anxiety in the non-psychiatric hospitalized population.View full abstractDownload PDF (477K) -
Masami HIRASHITA, Minoru TANABE, Sohtaro SAKURADA, Atsuo HIRAI, Osamu ...1993 Volume 30 Issue 1 Pages 43-45
Published: April 01, 1993
Released on J-STAGE: October 13, 2010
JOURNAL FREE ACCESSThe interaction between body core (Tcor) and mean skin (Tsk) temperatures in the determination of local sweating rate on the forehead (msw) was examined by analyzing with a linear multiple regression model during passive body warming and exercise in 5 male subjects. All models were significantly related. There were significant correlations between mswand Tcorin all cases. In 3 subjects, however, no significant contributions of Tskto mswwere shown during body warming. Similar results were obtained in exercise experiments. These results suggest that local sweating rate on the forehead is mainly controlled by Tcor, and thermal inputs from the skin have little influence on it in hyperthermic subjects.View full abstractDownload PDF (384K)
- |<
- <
- 1
- >
- >|