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  • Articles  (8)
  • Temperature  (5)
  • Microclimate  (3)
  • 2020-2022
  • 1985-1989  (8)
  • 1950-1954
  • Geography  (8)
  • 1
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 33 (1989), S. 32-35 
    ISSN: 1432-1254
    Keywords: Myocardial infarction ; Aging ; Temperature ; Seasons ; Coronary disease
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract Mortality from acute myocardial infarction (MI) over the 5 year period 1982–1987 in Brown County, Wisconsin, was analyzed to assess the relationship with environmental temperature. Deaths occurrring on the day of and the day following a significant snowfall as well as deaths occuring in health care facilities were eliminated from consideration because the focus was upon temperature, not snowfall or events within a hospital. These criteria resulted in the inclusion of 1,802 days and 926 cases of acute MI. The mean temperature on the day of death was obtained from climatological data and were grouped into six categories covering a range of temperatures from〈−17.8°C (0°F) to 16.1°C (61°F). The number of deaths in each category was tabulated. The effect of temperature, sex, and age were analyzed by regression analysis. The results indicated a linear increase in mortality as mean daily temperature decreased over the temperature range. The inverse temperature effect was most pronounced in males over the age of 60. These results indicate that cold temperatures appear to be associated with an increased mortality from myocardial infarction.
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  • 2
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 33 (1989), S. 66-68 
    ISSN: 1432-1254
    Keywords: Microclimate ; Soil micro-fauna ; Vegetation-Europe
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract Temperature and relative humidity were measured in the air in shade at a heigh of 2 m, on the ground in shade, and in clumps of vegetation, under similar conditions at localities in Sweden, England, and Portugal. No significant differences were noted in the standard deviations and ranges of the results obtained in each of these positions at any of the three different localities. This is discussed; faunal notes are appended.
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  • 3
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 33 (1989), S. 151-156 
    ISSN: 1432-1254
    Keywords: Temperature ; Snow ; Myocardial infarct ; Cold avoidance
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract The incidence of mortality from myocardial infarction over a 2-year period in Montreal is examined in relation to temperatures and snowfall. Mortality is seen to increase with deviations from seasonally determined thermally neutral conditions, although compared to observations of a parallel study in subtropical Brisbane, death rates are lower with similar falls in temperature. In Montreal, mortality is also seen to increase with snow during the previous day. During anomalous cold spells death frequencies decrease, a phenomenon interpreted as the behavioural thermoregulatory process of cold avoidance.
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  • 4
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 33 (1989), S. 272-281 
    ISSN: 1432-1254
    Keywords: Microclimate ; Water budget ; Vegetation ; Antarctica
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract During the Norwegian Antarctic Expedition of 1984–1985, land parties worked in the area of Mühlig-Hofmannfjella and Gjelsvikfjella in Queen Maud Land (5° 20′E, 1° 37′W, 1000–1600 m a.s.l.). The nunataks in this area, which represents one of the climatic limits for terrestrial life on earth, is among those areas absorbing the highest quantity of shortwave radiation during a period of 24 h in summer. In spite of this the air temperature never, or very seldom, exceeds 0° C. The limiting factor for photosynthesis over most of the summer was water availability. Melt-water plays an important role in spring. During rest of the growth season, water from condensation is probably the most important water source for plants. On calm nights the rate of condensation during 6 h may reach 0.5 mm, which constitutes only 10%–30% of daily potential evapotranspiration. Plants situated in narrow clefts or shielded by stone blocks have the highest rate of potential photosynthesis. These locations are shielded from direct solar radiation most of the time, but the radiation from surrounding stone surfaces is higher than from the atmosphere and heat loss by turbulence is smaller than for exposed locations. These locations also probably have the highest rate of actual photosynthesis.
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  • 5
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 32 (1988), S. 47-51 
    ISSN: 1432-1254
    Keywords: Temperature ; Cold ; Hot ; Number of deaths from different diseases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract The study is focused on patterns of daily deaths in Shanghai for the period from 1 May 1979 to 30 April 1980. From May to September the deaths in all age groups are lower, but increase gradually from October and reach to a peak in February. This confirms results found in other countries, namely the death rate is increased in winter. The peak for the population aged over 70 is the highest of the three different age groups. Correlation analyses were carried out on three temperature parameters (daily minimum, maximum and mean temperatures) and six categories of death (heart disease, coronary heart disease, cerebrovascular disease, cancer, respiratory disease and total deaths). The results reveal that the average daily temperature is very significant for the six categories of death. There are three correlations: straight line relationship, parabolic relationship and exponential relationship. These different types arise from the different morbidity rates. Death from the different disease is also increased during days when the daily maximum temperature is over 35° C or the daily minimum temperature is below 0°C. This shows, in general, that days of extreme temperature lead to an increase in the death rate.
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  • 6
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 32 (1988), S. 112-122 
    ISSN: 1432-1254
    Keywords: Squirrel ; Arboreal ; Microclimate ; Thermoregulation ; Taxidermic mount ; Standard operative temperature
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract Heated taxidermic mounts of the gray squirrel were used to analyze the thermal environment of a small arboreal endotherm. Changes in the standard operative temperature (T es) calculated from the temperatures of heated and unheated mounts agreed well with the power consumption (M−E) of mounts on the ground and on the wind-ward side of a 48-cm diameter tree trunk. As wind speed (u) rose and sky solar radiation (Q r) decreased, the windward side of the tree trunk became an increasingly more stressful thermal environment than the leeward side of the trunk or the ground, producingM−E differences of more than 30%. Although theM−E of a ground mount and a limb mount 4 m in the air are dependent onQ ras well asu, the ratio of the two value ofM−E is independent ofQ r, poorly predicted byu and well predicted byu 1/2.
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  • 7
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 32 (1988), S. 231-241 
    ISSN: 1432-1254
    Keywords: Circadian ; Phase shifting ; Rhythms ; Temperature ; Ultradian
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract The various effects that temperature can exert on biological periodicities are reviewed. Particular consideration is given to the remarkable capability of many rhythms either to respond in a temperature dependent manner, especially in nonsteady-state conditions, or to behave almost independently of temperature (‘temperature compensated’) in the steady state. Therefore, organisms are able both to use temperature changes as synchronization cues and to measure time at different temperatures. Moreover, changes of temperature can induce transients, after-effects, and eventually alterations in the phase response behaviour, sometimes even the rhythmicity itself. Treatment with low temperatures can, at least in some cases, hold the circadian clock, and considerably reduce the sensitivity of rhythms towards certain drugs.
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  • 8
    Electronic Resource
    Electronic Resource
    Springer
    International journal of biometeorology 32 (1988), S. 242-246 
    ISSN: 1432-1254
    Keywords: Simulium arcticum ; Black flies ; Controlled environment ; Temperature ; Relative humidity ; Vapour pressure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Geography , Physics
    Notes: Abstract The effects of temperature and vapour pressure deficit on the flight activity ofSimulium arcticum were defined under controlled laboratory conditions. Optimum conditions of temperature and vapour pressure deficit for flight activity varied with time of exposure to the environmental conditions. By applying polynomial equations for the various response surfaces it was possible to predict the time-dependent, optimal hygrothermal environment for black-fly flight activity. Greatest variability in flight activity occurred just prior to death of the insects. Mortality of flies after 1 h exposures to the experimental conditions occurred only at high temperatures and vapour pressure deficits. With increased time of exposure, mortality increased at lower temperatures and vapour pressure deficits.
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