Results 301 to 310 of about 835,260 (355)
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Biological Psychology, 1991
The P300 (P3) event-related brain potential (ERP) was elicited with auditory stimuli in four different groups of normal, young adult subjects (n = 20 in each group) whose ERPs were obtained at different times of the year. P3 amplitude was largest during spring and summer and smaller for the subjects who were assessed during fall and winter.
J, Polich, M W, Geisler
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The P300 (P3) event-related brain potential (ERP) was elicited with auditory stimuli in four different groups of normal, young adult subjects (n = 20 in each group) whose ERPs were obtained at different times of the year. P3 amplitude was largest during spring and summer and smaller for the subjects who were assessed during fall and winter.
J, Polich, M W, Geisler
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Seasonal variation in gonorrhoea
European Journal of Epidemiology, 1992Seasonal variations in the incidence of gonorrhoea were observed in the 1970's with a peak in the third quarter of the year and a trough in the first and fourth quarters. The aim of this study was to determine what, if any, seasonal trends were present in Scotland and Lothian between 1984 and 1989 and postulate mechanisms to explain our observations ...
J D, Ross, G R, Scott
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Seasonal Variation in Migraine
Cephalalgia, 2005Our group has previously shown that migraineurs, as opposed to individuals with other headaches, are more likely to have headache during the bright arctic summer than during the polar night season. We set out to investigate the impact of seasonal light exposure in migraine with and without aura.
K B, Alstadhaug +2 more
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1996
Abstract Throughout the chapters of this textbook on biological rhythms, a spectrum of rhythm periods has been examined, ranging from the ultradian stages of sleep, through the circadian fluctuations in physiological and performance variables, to the infradian rhythm of the menstrual cycle.
T Reilly, G Atkinson, J Waterhouse
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Abstract Throughout the chapters of this textbook on biological rhythms, a spectrum of rhythm periods has been examined, ranging from the ultradian stages of sleep, through the circadian fluctuations in physiological and performance variables, to the infradian rhythm of the menstrual cycle.
T Reilly, G Atkinson, J Waterhouse
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Bleeding peptic ulcer: Seasonal variation
The American Journal of Digestive Diseases, 1962The month-to-month incidence of bleeding duodenal ulcer has been determined over an 8-year period by comparing a series of 648 bleeding episodes with the medical and surgical admission rates for months and quarters (seasons). The peak incidence of bleeding peptic ulcer is in November and December. Lowest incidence occurs during the summer, specifically
F J, BREEN, W J, GRACE
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Seasonal Variation in Interest Rates
The Review of Economics and Statistics, 1975A survey of the empirical work involving interest rates indicates an almost universal use of seasonally unadjusted rates, apparently due to a conviction that seasonal factors are not important in interest rates. Studies by V. Kerry Smith and Richard Marcis (1972), Stanley Diller (1969) and William Gibson (1970), however, provide evidence showing that ...
Barth, James R, Bennett, James T
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Seasonal Variation in Cardiovascular Functioning
Archives of Environmental Health: An International Journal, 1972Ninety-three subjects were observed In a darkened soundproof room over 900 times at intervals off approximately. 10 weeks throughout two years. At conditions of essentially constant temperature and humidity throughout the year, blood pressures, heart rates, respiratory rates and skin resistance levels were recorded Monthly standard score means for each
R A, Schneider, J P, Costiloe
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1994
Abstract The realisation among econometricians and applied economists that seasonal variation in many economic time series is often larger and less regular than often hitherto acknowledged, has led to an increased interest in seriously modelling seasonality. The relative size of the seasonal variation also means that such modelling is
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Abstract The realisation among econometricians and applied economists that seasonal variation in many economic time series is often larger and less regular than often hitherto acknowledged, has led to an increased interest in seriously modelling seasonality. The relative size of the seasonal variation also means that such modelling is
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Seasonal variation in placental abruption
The Journal of Maternal-Fetal & Neonatal Medicine, 2012To characterize seasonal patterns of placental abruption among Jewish and Bedouin parturients in the Southern part of Israel.A retrospective population-based study comparing all singleton pregnancies of patients with and without placental abruption was conducted. Deliveries occurred between the years 1988 and 2010.
Ronen, Mankita +3 more
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1992
Abstract Seasonal variation in the frequencies of congenital malformations is of interest as it may indicate the potential action of environmental agents such as climate, dietary factors, or infections. Historically, the evident seasonality of congenital cataract (Gregg 1941) led to the demonstration of an infectious aetiology ...
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Abstract Seasonal variation in the frequencies of congenital malformations is of interest as it may indicate the potential action of environmental agents such as climate, dietary factors, or infections. Historically, the evident seasonality of congenital cataract (Gregg 1941) led to the demonstration of an infectious aetiology ...
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