Search Results
Results 301 - 350 of 709
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Gallagher Shaun - - 2004
This paper argues that Frith's (1992) account of the positive symptoms of schizophrenia in terms of a disruption of metarepresentational self-monitoring is inadequate in several specific ways. More generally, this paper argues against top-down explanations for the loss of the sense of agency in such symptoms. In addition, even if ...
Kicha Alla A - - 2003
Seasonal variations in the levels of polar steroids including polyhydroxylated steroids and related glycosides in digestive organs of the starfish Patiria (=Asterina) pectinifera have been studied. The concentration of polar steroids is related to the annual reproductive cycle of the starfish and periods of active feeding. Two peaks in concentrations ...
Heideman Paul D - - 2003
Differences among species and among years in reproductive seasonality (the tendency for clusters of events to fall at approximately the same point in each year) and synchrony (amount of clustering of events within a year) have been intensively studied in bats, but are difficult to assess. Here, we use randomization ...
Karley A J - - 2003
Populations of many phloem-feeding aphid species in temperate regions increase exponentially in early summer and then 'disappear', usually over a time-scale of a few days, in July. To understand these dynamics, empirical investigation of the causes and modelling of the processes underlying population change are required. Numbers of the aphids ...
Melnikov Vladimir N - - 2003
OBJECTIVES: To assess associations between mean age at death from cardiovascular disease (myocardial infarction, acute heart failure, ischemic heart disease and stroke) and sex, education, socio-professional status, marital status, region of residence at birth, month and season of birth and of death in dependence of climatic conditions. DESIGN: A retrospective ...
Collinson A C - - 2003
In rural Gambia, birth season predicts infection-related adult mortality. Seasonal factors in early life may programme the immune system, possibly via an effect on thymic development. This study tested whether thymus size in rural Gambian infants is affected by birth season, defined as January-June (harvest, few infections) versus July-December (hungry, ...
Dauvilliers Yves - - 2003
STUDY OBJECTIVES: A loss of hypocretin neurons has been observed in human narcolepsy; however, the cause of this disorder is still unknown. While family history and genetic factors are important individual risk factors for narcolepsy, environmental factors also contribute to the pathogenesis of the disease. The aim of the study ...
Jeppesen D L DL Department of Paediatrics, Hvidovre Hospital, University of Copenhagen, Denmark. - - 2003
The report on the influence of seasonal factors on thymic size in early life describes a pattern of ultrasonographically measured thymic growth in Gambian infants including the finding of a smaller thymus in the hungry season. These factors raise a number of important questions: Is the size of the thymus ...
Bersani G - - 2003
OBJECTIVE: Obstetric complications may be an etiologically important factor in the development of schizophrenia. The aim of this study was to evaluate whether the risk for developing schizophrenia in adult life is increased in individuals with more severe obstetric complications at birth. METHODS: To this end, mothers were interviewed to ...
Danubio Maria Enrica - - 2003
Reconstruction of human ecosystems and their stability over time provides knowledge of the processes of adaptability developed by isolated communities. Seasonality of vital events is a good indicator of the effects of different 'traditional' lifestyles, which in turn depend on the ecological context in which a population developed specific subsistence ...
Fleitmann Dominik - - 2003
A high-resolution oxygen-isotope record from a thorium-uranium-dated stalagmite from southern Oman reflects variations in the amount of monsoon precipitation for the periods from 10.3 to 2.7 and 1.4 to 0.4 thousand years before the present (ky B.P.). Between 10.3 and 8 ky B.P., decadal to centennial variations in monsoon precipitation ...
Nakagawa Naofumi - - 2003
Based on long-term, although intermittent, observations (2 years 4 months of 14 years), we present data on birth seasonality, age at first birth, interbirth intervals, mortality rates, age at first emigration, and population change of a wild population of West African patas monkeys ( Etythrocebus patas patas) in northern Cameroon. ...
Bogaert Anthony F - - 2003
A late fraternal birth order has been demonstrated numerous times in homosexual men. Body size has been less studied with regard to the development of sexual orientation and has demonstrated contradictory results. In this research, the relations among fraternal birth order, body size, and sexual orientation were examined in a ...
Mäki Pirjo - - 2003
OBJECTIVE: Problems in the early mother-infant relation pose a hypothetical risk factor of schizophrenia. We studied the association between very early separation and later development of schizophrenia or other psychoses in a unique data set. METHOD: The index cohort consisted of 3020 subjects born in 1945-1965 in Finland who were ...
Fooden Jack - - 2003
Japanese macaques, Macaca fuscata, exhibit an annual reproductive cycle that apparently is maintained intrinsically. Translocation of nine troops to new latitudes within the northern hemisphere has had minimal effect on the timing of birth seasonality in these troops; translocation of one troop to the southern hemisphere has resulted in a ...
Eastwood S L - - 2003
The neuropathological features of schizophrenia are suggestive of a developmentally induced impairment of synaptic connectivity. Semaphorin 3A (sema3A) might contribute to this process because it is a secreted chemorepellant which regulates axonal guidance. We have investigated sema3A in the cerebellum (an area in which expression persists in adulthood), and measured ...
Merchant J C - - 2003
A survey of rabbit populations in the southern tablelands of New South Wales, Australia, was carried out to establish the pattern of occurrence of myxomatosis in preparation for a deliberate release of myxoma virus. Myxomatosis was first detected in December and cases were found on most sites through to May. ...
Davies Geoffrey - - 2003
Based on the epidemiological finding that individuals with schizophrenia tend to be born in winter/spring when compared to the general population, we examined (1) the strength and timing of this effect in Northern Hemisphere sites, and (2) the correlation between the season of birth effect size and latitude. Studies were ...
Stanley K - - 2003
AIM: This is a review of the natural Campylobacter colonization and transmission among ruminant livestock in the dairy farm environment. METHODS AND RESULTS: Using cultural detection methods and enumeration techniques the distribution of Campylobacter in ruminant animals at birth, on the farm, at slaughter and in the farm environment have ...
Kirkpatrick Jay F - - 2003
Despite a large body of safety data, concern exists that porcine zonae pellucidae (PZP) immunocontraception--used to manage wild horse populations--may cause out-of-season births with resulting foal mortality. Our study at Assateague, Maryland indicated the effects of immunocontraception on season of birth and foal survival between 1990 and 2002 on wild ...
Sack R Bradley - - 2003
How Vibrio cholerae spreads around the world and what determines its seasonal peaks in endemic areas are not known. These features of cholera have been hypothesized to be primarily the result of environmental factors associated with aquatic habitats that can now be identified. Since 1997, fortnightly surveillance in 4 widely ...
Kendell R E - - 2002
The birthweights of 450 schizophrenic patients born in 1971-1978 were compared with those of individually matched controls from the same birth cohort. Schizophrenics born in the second quarter of the year (April to June) had a significantly lower birthweight than their controls and this was not attributable to differences in ...
Cox Brian J - - 2002
Confirmatory factor analysis was used to evaluate 2 multidimensional measures of perfectionism (R. O. Frost, P. Marten, C. Lahart, & R. Rosenblate, 1990; P. L. Hewitt & G. L. Flett, 1991). On a first-order level, support was found for Hewitt and Flett's (1991) original 3-factor conceptualization of perfectionism, although only ...
Ressayre Adrienne - - 2002
Pollen grains display a wide range of variation in aperture number and arrangement (pattern) in angiosperms. Apertures are well-defined areas of the pollen wall surface that permit pollen tube germination. For low aperture numbers, aperture patterns are characteristic of the major taxonomic divisions of angiosperms. This paper presents a developmental ...
Brown Gillian R - - 2002
Trivers and Willard hypothesized that vertebrates adaptively vary the sex ratio of their offspring in response to the mother's physical condition [Trivers, R. L. & Willard, D. (1973) Science 179, 90-92]. This hypothesis has produced considerable debate within evolutionary biology. Here we use meta-analysis techniques to evaluate claims that nonhuman ...
Mikulecky M - - 2002
Between October 6, 1997 and April 30, 1999, 5011 births (mean: 8.76 per day) were registered in the city of Passo Fundo, South Brazil. The sequence of 572 daily birth numbers was not random (iteration test). Neyman distribution (m = yen ) showed the best fit. Clusters of days with ...
Kirkpatrick Brian - - 2002
OBJECTIVE: An association between deficit schizophrenia and summer birth has previously been reported. Confirmation of a separate risk factor for this group of patients is potentially important, but the number of subjects with deficit schizophrenia in previous reports has been small. This analysis used data from an epidemiological study of ...
Gaughran Fiona - - 2002
BACKGROUND: Several authors have reported increased soluble interleukin 2 receptor (sIL2Ralpha) concentrations in schizophrenia. The aim of this work was to examine serum sIL2Ralpha in the first degree relatives of patients with schizophrenia. METHODS: We sampled 51 first degree relatives of patients with DSM IIIR schizophrenia. These relatives were unaffected ...
Manning J T - - 2002
There is evidence that the ratio of the length of the 2nd and 4th digit (2D:4D) is negatively related to prenatal and adult concentrations of testosterone. It has also been reported that high levels of testosterone at conception in both fathers and mothers are associated with an increased sex ratio ...
Nelson E A S - - 2002
Incidence for rotavirus and intussusception was estimated from standardized discharge data for all Hong Kong government hospitals (1997 to 1999). Intussusception incidence in infants (78 to 100 of 100,000) was relatively high. The distinct winter seasonality of rotavirus was not evident for intussusception. During the first 5 years of life ...
Takahashi Hiroyuki - - 2002
This study examined the onset of estrus, nutritional conditions during the mating season, and female reproductive parameters in a troop of unprovisioned Japanese macaques (Macaca fuscata fuscata). The mean interbirth interval (IBI) was 25.1 mo, suggesting a 2-yr birth cycle. The mean IBI following the death of an infant before ...
Chotai Jayanti - - 2002
Separate studies on adults, including those in suicidology and another regarding personality in the general population, have indicated associations with their season of birth. We analyse each of these studies by multiple nonlinear regression employing a cosine function for the month of birth, and compare these studies regarding the birth ...
Danubio M E - - 2002
Natality rates and seasonality of births and conceptions were analyzed from 6,116 birth records in the pastoral community of Roio (Abruzzo, Italy) from 1802 to 1965. Gross natality rates averaged 25.5 x 1000 in the past, lower than those reported for agricultural groups. Seasonality of births showed a marked pattern: ...
Cahill Matthew - - 2002
OBJECTIVE: To examine the association between prenatal exposure to poliovirus infection and later development of schizophrenia or affective psychosis in a Southern Hemisphere psychiatric register. METHODS: We calculated rates of poliomyelitis cases per 10 000 background population and rates for schizophrenia(n = 6078) and affective psychosis (n = 3707)per 10 ...
Laron Zvi - - 2002
The fast increase in the incidence of childhood type 1 diabetes mellitus (T1DM) that cannot be explained by changes in the genetic susceptibility, led us to look for environmental causes. To test the hypothesis that the initiation of the autoimmune process of childhood T1DM in genetically susceptible subjects begins in ...
Tatsumi Masahiko - - 2002
A number of North American and European studies have observed a higher proportion of winter births in schizophrenia patients. Fewer studies have investigated this issue in Asian populations, and the findings are not as consistent as in the studies of Western populations. A statistically significant excess of winter births has ...
Onuma Manabu - - 2002
Fecal estradiol concentrations were measured in three captive unmated female sun bears (Helarctos malayanus) from August 1998 to July 1999 in Sarawak, Malaysia and vaginal smears from one of the females was observed in August 1998 and March 1999. A single peak in fecal estradiol concentration was obvious for each ...
McGrath John - - 2002
BACKGROUND: Based on the well-described excess of schizophrenia births in winter and spring, we hypothesised that individuals with schizophrenia (a) would be more likely to be born during periods of decreased perinatal sunshine, and (b) those born during periods of less sunshine would have an earlier age of first registration. ...
Fritzsche Markus - - 2002
BACKGROUND: Clusters by season and locality reveal a striking epidemiological overlap between sporadic schizophrenia and multiple sclerosis (MS). As the birth excesses of those individuals who later in life develop schizophrenia mirror the seasonal distribution of Ixodid ticks, a meta analysis has been performed between all neuropsychiatric birth excesses including ...
Wexler Joan - - 2002
In an essay published in 1988, "Psychoanalysis in Search of Nature: Thoughts on Metapsychology, Metaphysics, Projection," Hans Loewald animates both psychoanalysis and nature in their dynamic relation, one to the other. He recapitulates many of his earlier ideas about how the mind of the child "comes into being" in the ...
Côté Karine - - 2002
We investigated whether birth order and birth interval are associated with phallometric responding among 168 sex offenders. Based on the immunoreactivity hypothesis, we predicted that a larger number of older brothers and a shorter birth interval between the offenders and their next older brothers would be associated with more deviant ...
Smallwood Steve - - 2002
A greater understanding of past, present and future trends in fertility can be gained from analysing trends in birth order; that is whether a birth is a first, second, third or higher order birth. However, under current legislation, birth order information is not collected at registration for births outside marriage ...
Fritzsche Markus - - 2002
BACKGROUND: Being born in winter and spring is considered one of the most robust epidemiological risk factors for schizophrenia. The aetiology and exact timing of this birth excess, however, has remained elusive so far. Since during phylogeny, Borrelia DNA has led to multiple germ-line mutations within the CB1 candidate gene ...
Moore S E - - 2001
BACKGROUND: We previously showed that mortality from infectious diseases among young adults in rural Gambia is strongly correlated with the season of their birth. This suggests that early life insults that involve fetal malnutrition, exposure to natural toxins, or highly seasonal infections affecting the infant or pregnant mother cause permanent ...
Koziel S - - 2001
The goal of this study was to investigate the relation of birth order to relative weight and prevalence of obesity in a group of 13-15 years old girls. In 1997, 1458 girls were examined. The height and weight measured by trained staff were recorded. Family size and birth order were ...
Bostanian N J - - 2001
Hyaliodes vitripennis (Say) is a univoltine indigenous predacious mirid. It has been reported in several orchards where IPM programmes are used. It is a generalist, and feeds on phytophagous mites in addition to other arthropods. In Quebec, a foliar application of imidacloprid, deltamethrin or lambda-cyhalothrin is used at least once ...
Dalman C - - 2001
BACKGROUND: Previous research has found an association between obstetric complications and schizophrenia, but in many studies the sample size was limited, and no assessment of specific exposures was possible. AIMS: To assess the role of different complications, and in particular to distinguish between disordered foetal development and hypoxia at birth. ...
Opler M G - - 2001
Both epidemiological findings and clinical observations and have shaped our thinking as regards to the neuropathology of schizophrenia. Epidemiological findings implicating environmental risk factors, including maternal dietary deficiency and urban birth place, suggest schizophrenia is a developmental disorder, whereas clinical observations gave rise to the "dopamine hypothesis." Epidemiological findings lead ...
Tek C - - 2001
Patients with deficit schizophrenia differ from other people with schizophrenia relative to course of illness, treatment response, and neurobiological correlates. An association between deficit schizophrenia and summer birth, in contrast to the winter birth risk factor associated with schizophrenia as a whole, has also been reported. We attempted to replicate ...
Carbonell-Estrany X - - 2001
OBJECTIVE: To collect data on hospitalization rates for respiratory syncytial virus (RSV) illness during the season of 1999 to 2000 in nonprophylaxed premature infants < or = 32 weeks gestational age (GA) in Spain and compare this with previously published data collected in the season of 1998 to 1999. METHODS: ...
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