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Results 401 - 450 of 691
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Douglas S - - 1999
There is extensive literature describing the effect of season on mortality rates, especially in cardiovascular and respiratory disease. This study compares latitude with the extent of seasonal variation of monthly deaths from all causes. In developed countries, there is a peak of deaths in winter and a trough in summer. ...
Martin M - - 1999
In an earlier study, Dellatolas, Curt and Lellouch (1991) concluded that handedness is not related to season of birth. However, post-hoc exploration of their and other sets of data has shown that there is an apparent tendency for left-handedness to be more prevalent in the period March-July than in the ...
Claxton R P - - 1999
Several bodies of research link birth order and aggression. With a sample of 144 women and 225 men business students, the present study investigated birth order and aggression using two measures from academic marketing. Neither measure detected significant influence of birth order. Implications are discussed regarding marketing and consumers' behavior.
Nielsen R B - - 1999
A microbial culture enriched from a trichloroethene-contaminated groundwater aquifer reductively dechlorinated trichloroethene (TCE) and tetrachloroethene (PCE) to ethene. Initial PCE dechlorination rate studies indicated a first-order dependence with respect to substrate at low PCE concentrations, and a zero-order dependence at high concentrations. Studies of TCE and vinyl chloride (VC) dechlorination ...
Adeyemo A A - - 1999
Fontanelle sizes were studied in 200 term and appropriate-for-gestational age neonates delivered at the University College Hospital, Ibadan, Nigeria with the aim of determining their normal range of variation. The anterior and posterior fontanelle sizes were described using the range, mean, standard deviation and selected (3rd, 25th, 50th, 75th and ...
Yeates D K - - 1999
The order Diptera (true flies) is one of the most species-rich and ecologically diverse clades of insects. The order probably arose in the Permian, and the main lineages of flies were present in the Triassic. A novel recent proposal suggests that Strepsiptera are the sister-order to Diptera. Within Diptera, evidence ...
Levine R J - - 1999
At many locations in the northern hemisphere human sperm counts are reduced during the summer. Experiments with rhesus monkeys suggest that such seasonal variation may be induced by an endogenous biological clock reset annually by changes in the length of daylight. Little is known about seasonal variation in human female ...
Chotai J - - 1999
The cerebrospinal fluid (CSF) concentrations of the monoamine metabolites 5-hydroxyindoleacetic acid (5-HIAA), homovanillic acid (HVA) and 3-methoxy-4-hydroxyphenylglycol (MHPG) as well as their ratios and correlations were analyzed in relation to the season of birth. The sample consisted of 241 drug-free patients participating in psychobiological programs and comprising the DSM-III-R diagnoses ...
Krifi M N - - 1998
An adequate assessment of scorpion and snake venom LD50 is an important step for accurate evaluation of antivenom sera potencies and the optimization of serotherapy. The LD50 variation of Tunisian scorpion (Androctonus australis garzonii: Aag and Buthus occitanus tunetanus: Bot) venoms with body weight, sex and strain (Swiss or C57BI/6) ...
Procopio M - - 1998
OBJECTIVES: A recent British epidemiological study, having found that the seasonality of birth in a large epileptic sample was significantly different from that of the general population, has pointed to neurodevelopmental disruption as the likely mechanism to cause at least part of the epilepsies of unknown aetiology. The aim of ...
Matsuda S - - 1998
Based on vital statistics from 1979 to 1983, we used a time-series analysis using the Box-Jenkins model (ARIMA model) to compare the seasonality of preterm births among 47 prefectures in Japan. We also evaluated the relation between seasonality of preterm births and temperature. According to the Box-Jenkins analysis, a seasonal ...
Becker S - - 1998
BACKGROUND: Deaths exhibit a seasonal pattern in most parts of the world. Analyses of deaths for the years 1972-1974 from the vital registration system of Matlab, Bangladesh, published in this journal 17 years ago, showed sinusoidal seasonal patterns. As death rates have declined in other nations, the seasonal pattern is ...
Fukuda M - - 1998
We investigated the possible association between the Kobe earthquake (January 1995) and the sex ratio among live-born infants after the catastrophe. A significant decline in the sex ratio (0.501) of Hyogo Prefecture in October 1995 was observed 9 months after the Kobe earthquake as compared with an expected value of ...
Ajdacic-Gross V - - 1998
While studying birth cohort issues, the authors focused also on the seasons of birth in amyotrophic lateral sclerosis (ALS). The analyses were based on computerized death records of Swiss mortality statistics 1969-1993. The results confirm an excess of births in spring months. They suggest that risk factors in ALS can ...
Harding J J - - 1998
BACKGROUND: It has been suggested that season of birth might influence the susceptibility to cataract in later life. METHODS: This hypothesis was investigated using data pooled from two case-control studies carried out in Oxfordshire. RESULTS/CONCLUSION: The results showed no relation between month or season of birth and cataract in later ...
Lerchl A - - 1998
It was investigated whether there is a seasonal variation in sex ratio at birth in Germany. The analysis was based on records from the German Bureau for Statistics, covering the period from 1946 to 1995. A highly significant (P < or = 0.001), albeit low-amplitude rhythm was found with two ...
Lincetto O - - 1998
This study aimed to determine the impact of season and weight at discharge on growth rate and complications in low birthweight infants treated with Kangaroo Mother Care (KMC) in Maputo, Mozambique. The study population included 246 infants of birthweight < 2000 g. Follow-up until 2400 g was obtained in 64%. ...
Zucker K J - - 1998
This study examined the birth order of girls with gender identity disorder (N = 22). Each proband was matched to 3-7 clinical control girls for age at assessment and number of siblings (the mode number of controls per proband was 7) (total N = 147). The number of older brothers, ...
Donovan G A - - 1998
A prospective cohort study was undertaken to determine calf-level factors that affected calf health status between birth and 6 months of age. A convenience sample of approximately 3300 female Holstein calves born in 1991 on two large Florida dairy farms was used for the study. Data collected on each calf ...
Ortega M D - - 1998
Pirbright-type light traps were used to collect Culicoides biting midges (Diptera: Ceratopogonidae) at fifteen sites in twelve provinces of central Spain and Andalusia. A total of 293,625 Culicoides were collected in 1,387 samples over a two year period. These comprised approximately 9.2% Culicoides imicola, 11.4% C. pulicaris group, 1.6% C. ...
Deolalikar A - - 1998
"In this study we use data from rural India to examine the impact of the birth of a boy relative to the birth of a girl (i.e., the ¿gender shock') on the savings, consumption and income of rural Indian households. We find that the gender shock reduces savings for medium ...
Blackorby C - - 1997
"This paper investigates birth-date dependent principles for social evaluation in an intertemporal framework in which population size may vary. We weaken the strong Pareto principle in order to allow individuals' birth dates to matter in establishing a social ordering. Using the axiom independence of the utilities of the dead, we ...
Gloria-Bottini F - - 1997
We have studied the pattern of association between the season of conception and cytosolic low molecular weight phosphotyrosine phosphatase (ACP1) genetic polymorphism in 329 consecutively newborn infants from the population of Penne and 361 consecutively newborn infants from the population of Rome. In addition, 329 mothers were studied in the ...
Hoberg E P - - 1997
The phylogeny of the Eucestoda was evaluated based on a suite of 49 binary and multistate characters derived from comparative morphological and ontogenetic studies; attributes of adult and larval tapeworms were considered. A single most parsimonious tree (MPT) (consistency index = 0.872; retention index = 0.838; and homoplasy index = ...
Herring D A - - 1997
Anglican Church of Canada burial records from 1851-1964 for the Moose Factory First Nation are analysed for mortality seasonality. The 113-year study period is subdivided into three death cohorts (1851-1906, 1914-1945 and 1946-1964) that broadly reflect the late 19th century, early 20th century, and the post-WWII periods, respectively. The data ...
Maconochie N - - 1997
OBJECTIVE: To investigate on a population basis the suggestion that certain factors naturally alter the odds of having a boy or a girl, and that some women are predisposed towards having children of one particular gender. DESIGN: Routine data analysis. POPULATION: Routinely collected data on singleton infants born in Scotland ...
Ohaeri J U - - 1997
Some astrological hypotheses related to predisposition to severe mental illness were tested by analysing the zodiacal signs, the interactions between planetary qualities (aspects), and the occurrence of full and new moon dates, on the dates of birth of 221 schizophrenics, compared with 112 normal subjects. The sun signs of the ...
Kunugi H - - 1997
An excess of schizophrenic births in winter or early spring is a well replicated finding in studies on Western populations. However, there are few studies on Asian populations, and their results are not consistent. We examined the seasonality of schizophrenic births in Japanese subjects (n = 1024) born between 1955 ...
Stolwijk A M - - 1997
STUDY OBJECTIVE: Many studies on seasonality in Down syndrome (DS) have been performed and have come to different conclusions. It is suggested that seasonal variation in hormone production by the hypothalamus-pituitary-ovarian axis just before ovulation leads to seasonality in conception rates of DS. This study aimed to determine whether there ...
Kim D-s - - 1997
"The main purpose of this study is to develop explanations for the pattern of recently changing trends and regional differences in the sex ratio at birth in Korea and for Koreans in Jilin Province and Yanbian Autonomous Prefecture, China.... The findings suggest that, since the mid-1980s, sex ratios at birth ...
Bogaert A F - - 1997
This study extended research on birth order and erotic preferences by examining birth order in a sample of pedophiles. Charts of 338 pedophiles, assessed from 1980-1994 in the Behavioural Sexology Department of the Clarke Institute of Psychiatry in Toronto, were reviewed for family-demographic information. In total, 170 (57 heterosexual pedophiles, ...
Procopio M - - 1997
In most cases of epilepsy it is not possible to reach an aetiological diagnosis. Recent research points to a pre-perinatal disruption of the neurodevelopment as being the cause of at least some of these epilepsies of unknown aetiology. The object of this study was to corroborate this hypothesis from an ...
Gueresi P - - 1997
Data on recalled month of menarche and month of birth have been collected in a sample of 1505 secondary-school students resident in three provinces of North Italy, to examine the monthly distribution of menarche and the relationship between season of birth, season of menarche and age at menarche. Menarche occurrence ...
Moura M O - - 1997
A survey of the carrion fauna was made at two sites in Curitiba, State of Paraná, with the objective of describing the insects associated with carrion and setting up a preliminary data-base for medico-legal purposes in south Brazil. Vertebrate exclusion experiments were carried out in each season between 1994 and ...
Verdoux H - - 1997
It has been suggested that winter birth in urban areas may be associated with an increased risk of schizophrenia. Data on 4139 patients with a hospital diagnosis of schizophrenia were obtained from a survey of public departments of psychiatry in metropolitan France. Place of birth was classified according to the ...
Jones I H - - 1997
OBJECTIVE: The purpose of the present study was to determine whether there was a significant seasonal variation in the birth dates of patients with schizophrenia born in Tasmania. METHOD: The season of birth in Tasmanian-born patients with schizophrenia (n = 1412), born between 1919-1970, was compared with general population data. ...
Caenazzo L - - 1998
Sex determination in both fetuses and infants with ambiguous external genitalia usually necessitates time-consuming and costly karyotyping. We propose a simple, rapid, and reliable method of prenatal and postnatal sex determination by means of the PCR, a technique currently used to identify gender for forensic purposes. DNA was extracted from ...
Kettl P A - - 1997
Seasonal differences in suicide birth rates among Alaska Natives and for populations at different latitudes (residents of the Yukon, Saskatchewan, Montana, Wyoming, and Pennsylvania) were investigated. Seasonal birth rates for the general population were similarly examined. Suicide birth rates showed small seasonal variations for Alaska Natives with summer births showing ...
Verdoux H - - 1997
Previous studies have shown that schizophrenic patients are more likely to be born in winter or early spring months than the general population. Data on 4,207 patients with a hospital diagnosis of schizophrenia were obtained from a mailed survey to public departments of adult psychiatry in metropolitan France. For each ...
Torrey E F - - 1996
BACKGROUND: It has previously been reported that births of individuals who later develop schizophrenia vary by birth year. METHOD: Birth data were analysed on 34,024 individuals diagnosed with DSM-III-R disorganised, catatonic, and undifferentiated schizophrenia using time series analysis. RESULTS: Minor yearly fluctuations were observed but did not achieve statistical significance. ...
Kunugi H - - 1996
Recently McNeil et al. (1993b), showed that schizophrenics had smaller head circumference (HC) at birth than controls. This small head size at birth was observed more commonly among schizophrenics without a family history of psychosis than among familial schizophrenics, suggesting that some prenatal environmental factors, rather than genetic factors, are ...
Motohashi Y - - 1996
The seasonal variation of mortality in Sri Lanka was studied in relation to meteorological variables. Time series data of the total monthly number of deaths in men and women from 1976 to 1980 were analyzed by power spectrum analysis of the fast Fourier transformation method in the areas of Colombo ...
D'Alessandro U - - 1996
In 1992, the Gambian national impregnated bed net programme (NIBP) introduced insecticide treatment of bed nets into half of the primary health care villages in The Gambia. One component of the evaluation of this programme was the determination of whether it had any impact on the outcome of pregnancy in ...
Dassa D - - 1996
Birth in late winter and spring has been consistently shown to be a risk factor of schizophrenia. The relationship of late winter/spring birth to clinical characteristics and other putative risk factors, such as family history and obstetric complications, may provide clues to etiology. Data relating to season of birth, clinical ...
Ticher A - - 1996
Seasonal variations in births of autistic subjects have been reported for the United States, Canada, Sweden, Japan, and Israel. Here, data from England, Japan, and Israel are reanalyzed using spectral analysis for the cosine function. A sample of 583 autistic births occurring over 40 years (1947-1989) is meta-analyzed, focusing on ...
Gupta R - - 1996
The purpose of this study was to compare epidemiologic features of sudden infant death syndrome (SIDS) and bronchiolitis and to apply statistical examination in order to examine the hypothesis that similar mechanisms could be at work in both conditions. The setting was Scotland from 1982 through 1990. We compared 1,211 ...
DeQuardo J R - - 1996
Ventricular enlargement has been consistently demonstrated in schizophrenia using both CT and MRI. Despite this, the structural changes that underlie increased ventricle-brain ratio (VBR) and its relationship to environmental factors (intrauterine viral exposure, obstetric complications, etc.) and family history of schizophrenia remain poorly defined. Increased VBR has been shown in ...
Nguyen M T - - 1996
The timing of births and marriages in Vietnam appears to have some statistically significant relationships with the signs of the Chinese and Vietnamese astrological calendars. Years considered to be good years have significantly more births and marriages than years that are not considered as desirable. Births and marriages also have ...
Adéyeyé O A - - 1996
The effects of photoperiod on the feeding, development and quiescent behavior of the burrow-dwelling soft tick, Ornithodoros turicata (Dugès) were investigated. Ticks were assigned randomly to either continuous darkness (DD), a short-day photoperiod (L:D 10:14), a long-day photoperiod (L:D 14:10) or constant light (LL). Ticks reared under constant light succumbed ...
Ayas M F - - 1996
Biliary atresia has been reported anecdotally to occur with temporal and geographic clustering suggestive of an infectious etiology. We examined the birth dates of infants with extrahepatic biliary atresia (EHBA) during an 18-year period for evidence of a monthly or seasonal distribution. Sixty-five patients referred for biliary atresia to the ...
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