JAPANESE JOURNAL OF BIOMETEOROLOGY
Online ISSN : 1347-7617
Print ISSN : 0389-1313
ISSN-L : 0389-1313
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Volume 38, Issue 3
Displaying 1-3 of 3 articles from this issue
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Original Article
  • Thermoregulatory responses to exercise in diet-induced thermogenesis
    Ryoko SAKAE, S MORI, S KOGA, M ASAYAMA
    Article type: Original Article
    2001 Volume 38 Issue 3 Pages 63-69
    Published: 2001
    Released on J-STAGE: October 16, 2002
    DOIhttps://doi.org/10.11227/seikisho.38.63
    JOURNAL FREE ACCESS
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    To study the mechanism for a rise in body temperature during exercise, the high protein-diet was given to human subjects. Ten healthy young women participated in this study. The subjects exercised at 60% V.O2max with a cycle ergometer for 60 minutes with fasting and meal conditions. Body temperature was higher in meal condition than in fasting condition before the exercise began (P<0.01). On the other hand, body temperature during exercise was raised with maintaining the difference before the exercise began. Heat production was significantly higher in meal condition than in fasting condition (P<0.01), but evaporative heat dissipation was not statistically significant. These results suggested that body temperature rise by DIT was never modified during exercise at 60% V.O2max and heat balance was kept. In other words, thermoregulatory response of the present experiments showed the passive responses that change in body temperature by DIT was superimosed on the change by exercise.
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  • Indoor climates and evaluation of thermal performance in dwelling space by variations of temperature and humidity
    Tetsu AOKI, A MIZUTANI, C SUTO
    Article type: Original Article
    2001 Volume 38 Issue 3 Pages 71-88
    Published: 2001
    Released on J-STAGE: October 16, 2002
    DOIhttps://doi.org/10.11227/seikisho.38.71
    JOURNAL FREE ACCESS
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    In order to evaluate and compare the thermal performance in dwelling space, outdoor and indoor temperature and humidity were measured in five houses with different environmental, structural and living-style features from June 1997 to May 1998 in Nagoya. The houses examined were two conventional wooden houses without air-conditioner (A, B), one light gauge steel house (C), one reinforced concrete apartment house (D) and one highly insulated airtight wooden house with a central air-conditioning and mechanical ventilation system (E). Air-conditioners were also used in houses C and D for cooling in summer and heating in winter. The daily average indoor temperature varied depending on the outdoor temperature in houses A and B, and not so in houses C, D and E in summer, but the difference of the monthly mean indoor temperatures was not remarkable between the houses with or without air-conditioner. The indoor absolute humidity decreased in houses C, D, E with air-conditioners when the outdoor absolute humidity rose more than 12g/kg' or the outdoor temperature was over 26
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  • Responsiveness of male sheep to the smells of the body parts of conspecific animals in breeding season
    Yuji TAKEMURA, N OZASA, K NUSHI, F HARADA
    Article type: Original Article
    2001 Volume 38 Issue 3 Pages 89-106
    Published: 2001
    Released on J-STAGE: October 16, 2002
    DOIhttps://doi.org/10.11227/seikisho.38.89
    JOURNAL FREE ACCESS
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    At the height of the breeding season of Japanese Corriedel sheep, behavioral responses to smells of 25 parts of the body surface of conspecific animals were observed in 10 sexually matured males which comprised eight rams and two ram tegs in order to know the distribution of the smells attractive to matured males. For collecting smell samples, three cyclic ewes, two pregnant ewes, two ewe tegs at peripubertal period, and two rams were used. Sniffing and flehmen behaviors, which relate to the olfactory functions, were observed and analyzed. Sniffing response was scored on 4 scales with -1 (avoid), 0 (poor), 1 (interested), and 2 (very interested). Duration time of the sniffing response was scored with 0 (short), 1 (a little long), 2 (long), and 3 (very long). And flehmen response was evaluated by the incidence with the number of animals which exhibited the response. From the results of this experiment, the followings were estimated: 1) Matured males prefer the smells of ewes and ewe tegs to those of rams; 2) Matured males avoid sniffing smells of the anus of rams although they prefer those of ewes and ewe tegs; 3) Smells of ewe's and ewe teg's urine, external genitalia, anus, and the modified skin glands (at the ventral tail radix, infraorbital sinus, inguinal sinus, and interdigital sinus) which consist of intensive apocrine sweat glands and/or sebaceous glands have strong attractiveness to matured males; and 4) Smells of cyclic ewes at estrous stage have more attractive effect on matured males than those at diestrous stage.
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