Search Results
Results 201 - 250 of 688
< 1 2 3 4 5 6 7 8 9 10 >
Tremlett Helen L - - 2006
We investigated the influence of season and birth month on sustained progression to Expanded Disability Status Scale 6 (requires a cane) through a database review of 2,319 definite multiple sclerosis (MS) patients followed for a mean 19.3 years, until July 2003 in British Columbia, Canada. The season of birth had ...
de Vis Raf Michaël Julien - - 2006
Rubber pest mites, Calacarus heveae and Tenuipalpus heveae, reach economic damage levels at the end of the rainy season and the beginning of the dry season in Brazil. Therefore, low humidity adaptation might be an important characteristic for predatory mites to successfully control pest organisms. This study determined the effect ...
Polasek Ozren - - 2006
Proportion of males at birth (commonly referred to as the sex ratio) has been investigated for countries of former Yugoslavia that were affected by the 1991-1995 wars. Number of live births for Slovenia, Croatia, Bosnia and Herzegovina with Serbian Republic, and Serbia and Montenegro were obtained from the official vital ...
Sokoloff Dmitry - - 2006
Terminal flower-like structures (TFLS) occur in many angiosperms that possess indeterminate inflorescences such as spikes, racemes, or spadices. We describe and review TFLS in early-divergent angiosperms, especially the magnoliid order Piperales and the monocot order Alismatales, in which floral interpretation is controversial. Essentially similar TFLS occur in a wide range ...
Kubiak Katarzyna - - 2006
Common European ticks, Ixodes ricinus, have been found in forest areas situated within the boundaries of big cities, and in areas changed by anthropogenic pressure. Monitoring I. ricinus, in the areas used by the public for recreation and leisure, makes it possible to assess the risk of infection with the ...
Koch H J - - 2006
Seasonal distribution of birth rates was only recently described in patients with high-grade gliomas. We analyzed 501 cases from the database of a Regional Cancer Center in Bavaria to assess annual periodicity in the birth dates of glioma patients. Prior to analysis, the number of births per month was normalized ...
Renfree Marilyn B - - 2006
Marsupials give birth to an undeveloped altricial young after a relatively short gestation period, but have a long and sophisticated lactation with the young usually developing in a pouch. Their viviparous mode of reproduction trades placentation for lactation, exchanging the umbilical cord for the teat. The special adaptations that marsupials ...
Biedrzycki O - - 2006
BACKGROUND: Seasonal variation in the incidence of and mortality from myocardial infarction (MI) has been well recognised for many years. Haemopericardium (HP) is usually a fatal complication of MI. No data exist in the literature with regard to the seasonal variation in mortality from HP. AIMS: To perform a necropsy ...
Robinson Susan E - - 2006
The accuracy of predicting disease occurrence using epidemic models relies on an understanding of the system or population under investigation. At the time of the Foot and Mouth disease (FMD) outbreak of 2001, there were limited reports in the literature as to the cattle population structure in Britain. In this ...
Simon Andor E - - 2006
The ability to detect individuals at high risk for developing schizophrenia before they express the disease will lead to targeted early intervention. It has been proposed that subjects at risk share a core deficit with people who already have schizophrenia. This includes cognitive impairment, affective symptoms, social isolation and decline ...
Valera M - - 2006
The length of gestation in Andalusian, or Spanish Purebred (SPB) and Arabian (AB) mares reared in Spain was analysed, based on 766 spontaneous full-term deliveries appertaining to 141 mares of SPB breed and 72 mares of AB breed in 31 breeding seasons. The data were obtained from the Yeguada Militar ...
Stein Paul D - - 2005
BACKGROUND: Varying observations have been made on seasonal differences of mortality from acute pulmonary embolism (PE). METHODS: The number of deaths each year from PE, from 1980 through 1998, based on death certificates, was obtained from the US National Center for Health Statistics Multiple Cause-of-Death Files. RESULTS: Acute PE as ...
Sušić, Velimir; Department of ...
The aim of the study was to determine whether lambs born in different seasons manifest a difference in birth weight and mortality rate. All year-round mating of Merinolandschaf ewes was used based on the natural occurrence of oestrus in different months of the year. The lambing seasons were grouped after ...
McGrath John J - - 2006
The 'season of birth' effect is one of the most consistently replicated associations in schizophrenia epidemiology. In contrast, the association between season of birth and development in the general population is relatively poorly understood. The aim of this study was to explore the impact of season of birth on various ...
Edgar Susan - - 2005
In many competitive sports, the use of a cut-off date for junior competition has been associated with a skewed birth date distribution in junior and senior players. The International Tennis Federation uses a junior competition year that commences on 1 January. The purpose of the current investigation was to describe ...
Rock Daniel - - 2006
Despite implicating the same biological systems, the relationship between suicide seasonality and season-of-birth has not been examined previously. The purpose of this study was to investigate the interaction between season-of-birth and the seasonality of suicidal behaviour. All adult suicides (N = 2923) and deliberate self harm (DSH) hospitalizations (N = ...
Morbey Yolanda E - - 2005
Any useful evolutionary theory of senescence must be able to explain variation within and among natural populations and species. This requires a careful characterization of age-specific mortality rates in nature as well as the intrinsic and extrinsic factors that influence these rates. We perform this task for two populations of ...
Ducrot Christian - - 2005
A spatio-temporal analysis was carried out to see how the risk distribution of bovine spongiform encephalopathy (BSE) in France changed depending on the period of birth. The data concerned the 539 BSE cases born in France after the ban (BAB) of meat and bone meal (MBM) in 1990 and detected ...
Peña-Mendoza B - - 2005
The reproductive season of tilapia was studied by monthly samplings at Emiliano Zapata dam, Morelos State, Mexico. From February 1999 through February 2000 a sample of 50 fish was taken from the commercial catch (castnet, 6.5 cm of mesh size). The observed sex ratio was 1:1.29 (females:males) (chi(2)=10.26; p<0.05). The ...
McGrath John J - - 2005
BACKGROUND: Birth weight is known to fluctuate with month of birth and with latitude; however the mechanisms underlying these gradients remain unclear. AIM: The study examined within-year fluctuations in birth weight across four regions in Australia. SUBJECTS AND METHODS: We obtained the birth weight of singleton births of at least ...
Li Wen Xiang - - 2005
Seasonal population dynamics of the digenean Phyllodistomum pawlovskii in the urinary bladder of the bullhead catfish, Pseudobagrus fulvidraco, were investigated in Liangzi Lake in the flood plain of the Yangtze River in China from February 2001 to July 2002. The overall prevalence of the parasite was high, 41.5% (n = ...
Sotgiu Stefano - - 2006
Study results from different geographical areas provide some circumstantial evidence that, when compared with the general population, people who later in life develop multiple sclerosis (MS) have a pattern of birth excess numbers in spring and late summer, which may disclose an association with MS-predisposing environmental agents. To identify the ...
Cagnacci Angelo - - 2005
When gender of 9,284 single fetuses, which were delivered at term in the Policlinic of Modena between 1997-2001, was stratified for month of conception and for quartiles of pregravid maternal weight, it showed that the ratio of male to female fetuses (secondary sex ratio) was characterized by a clear seasonal ...
McGrath John J - - 2005
BACKGROUND: Birth weight is known to fluctuate with season of birth, however, there is little information about seasonal variation in neonatal anthropometric measures. AIMS: The aim of this study was to examine seasonal fluctuations in birth weight and selected anthropometric measures. STUDY DESIGN AND SUBJECTS: The birth weight of singletons ...
Rodríguez-Batista Z - - 2005
Populational flux of the adult phase of Stomoxys calcitrans was observed in the municipal district of Pedro Leopoldo, Minas Gerais, Brazil. Three biocenoses were selected for the study: stable agrobiocenosis, pastural agrobiocenosis and eubiocenosis. The occurrence and the populational flux of the insects, using the Magoon trap for their capture, ...
Ponce Ninez A - - 2005
Preterm birth may be affected by the interaction of residential air pollution with neighborhood economic hardship. The authors examined variations in traffic-related pollution exposure--measured by distance-weighted traffic density--using a framework reflecting the social and physical environments. An adverse social environment was conceptualized as low socioeconomic status (SES) neighborhoods--census tracts with ...
Tochigi Mamoru - - 2005
A number of North American and European studies have observed a higher proportion of winter births in schizophrenia patients. Thus, seasonal fluctuation of unknown environmental factors may affect brain development in ways that alter susceptibility to schizophrenia. Specification of these factors may help elucidate the etiopathological mechanism of the disease, ...
Nalbant Suleyman S - - 2005
On 28 March 2005 the Sunda megathrust in Indonesia ruptured again, producing another great earthquake three months after the previous one. The rupture was contiguous with that of the December 2004 Sumatra-Andaman earthquake, and is likely to have been sparked by local stress, although the triggering stresses at its hypocentre ...
Van Ranst Marc - - 2005
BACKGROUND: Environmental factors trigger the onset of inflammatory bowel disease (IBD) in genetically predisposed individuals. Exposure to seasonal external factors during the maturation of the immune system is suspected to be an inducing factor for IBD. Some studies suggested an association between the month of birth and the later development ...
Polasek Ozren - - 2005
The aim of this paper was to investigate seasonal fluctuations of the number of births in Croatia. Vital registration data from the years 1970-2002 was used for analysis of the quarterly data (from the years 1970-1997), and monthly data (from the years 1998-2002). Both data sets were smoothed, using seasonal ...
Manning John T - - 2005
The ratio between 2nd and 4th digit length (2D:4D) may be a negative correlate of prenatal testosterone. This possibility has led to a number of studies of 2D:4D and its relationship with sexual orientation and other sex-dependent traits. At first, 2D:4D ratio was calculated from measurements made directly on the ...
Fish Barbara - - 2005
OBJECTIVE: The aim of this study was to detect infants who carry a schizophrenic genotype and study the development of schizophrenia spectrum disorders (SZSD) from birth. INTRODUCTION: In the 1940s, Bender described uneven maturation in childhood schizophrenics and in 1952 found this in the infant histories of 6 schizophrenic children. ...
Jaccard S L - - 2005
Since the first evidence of low algal productivity during ice ages in the Antarctic Zone of the Southern Ocean was discovered, there has been debate as to whether it was associated with increased polar ocean stratification or with sea-ice cover, shortening the productive season. The sediment concentration of biogenic barium ...
Ohara Koichi - - 2005
Although the precise etiology of schizophrenia remains unknown, the development of schizophrenia has been associated with a history of obstetric complication (OC). Furthermore, some studies show structural and functional brain abnormalities in the unaffected siblings of schizophrenics. In this study the perinatal histories of 18 unaffected siblings of schizophrenics and ...
Lum Lori Lee - - 2005
Grande Riviere Beach in Trinidad and Tobago is an important nesting site in the Caribbean for the Critically Endangered leatherback sea turtle, Dermochelys coriacea. Community members were concerned that beach erosion and seasonal river flooding were destroying many of the nests deposited annually and thought that a hatchery was a ...
Carney Brian T - - 2005
A seasonal variation in the incidence of idiopathic clubfoot has been reported. The purpose of this study was to determine whether a seasonal variation existed in the authors' population. The medical records of 245 children who presented with idiopathic clubfoot were reviewed. Expected month of birth, month of conception, and ...
Kulak Wojciech - - 2005
BACKGROUND: The objective of this report was to examine the seasonal variations on the incidence of cerebral palsy (CP) in Podlasie province, Poland in a retrospective case-control study. METHODS: Data were obtained from the Department of Pediatric Neurology and Rehabilitation. Selected babies were all born between January 1, 1990 and ...
Abel Ernest L - - 2005
We examined two alternative explanations, one demographic, the other sociological, for the uneven distribution of birth months of Major League baseball (MLB) players active between 1880 and 1999. Beginning in 1900, players born between August and October were significantly overrepresented, and this uneven distribution was almost identical for the next ...
Catalano Ralph - - 2005
BACKGROUND: Natural and man-made disasters as well as declining economies appear to coincide with reduced odds of male live births among humans (i.e. lower secondary sex ratio). This association has been attributed to excess death of males in gestation and to reduced conception of males. We attempt to empirically discriminate ...
St-Hilaire Annie - - 2005
Several studies have shown that patients with schizophrenia are more likely to be born in the winter and early spring than at any other time of the year. Furthermore, some studies have reported that winter-born patients differ from non-winter-born patients in terms of risk factors, symptoms, sensory abnormalities and brain ...
Kaleva Marko - - 2005
Conflicting data on circannual variation in birth rates of urogenital malformations have been reported previously. To assess risk factors of cryptorchidism we studied the seasonal variation of cryptorchidism in Finland. We performed a prospective cryptorchidism study in Turku, Finland, from 1997 to 2001 to evaluate the incidence of cryptorchidism. Clinical ...
Edi-Osagie N E - - 2005
AIM: To evaluate season of birth as a risk factor for the development of invasive Candida in our population of preterm low-birthweight infants. METHODS: Retrospective identification of Candida-positive blood or cerebrospinal fluid (CSF) cultures in infants < 32 wk over an 8-y period. RESULTS: There were 1400 admissions of infants ...
Rayco-Solon Pura - - 2005
BACKGROUND: Low birth weight (LBW) can result from prematurity or intrauterine growth restriction (IUGR) and result in small-for-gestational-age (SGA) infants. Prematurity and IUGR may have different etiologies and consequences. OBJECTIVE: Our objective was to analyze seasonal patterns of prematurity and SGA in a rural African community and to compare them ...
Jablensky Assen V - - 2005
OBJECTIVE: This study ascertained the incidence of complications during pregnancy, labor, and delivery and the neonatal characteristics of infants born to women with schizophrenia, bipolar disorder, or major depression in a population-based cohort. METHOD: Based on records linkage across a psychiatric case register and prospectively recorded obstetric data, the study ...
Turkson P K - - 2005
A retrospective cohort study was designed to examine the effect of sex, season of birth, type and year of birth, and birth weight on lamb mortality. The method used involved analysis of breeding records for Sahelian sheep kept on a breeding station at Pong-Tamale in northern Ghana from 1994 to ...
Ofordile O N - - 2005
Season of birth correlates with approximately 10-fold increased risk of early mortality from infectious disease in parts of The Gambia, West Africa. The increased early death occurred in individuals aged 25-50, who were born during the nonharvest season when stored groundnuts constituted a significant portion of the diet. Insect pests ...
Nickrent Daniel L - - 2005
Although recent molecular phylogenetic studies have identified the photosynthetic relatives of several enigmatic holoparasitic angiosperms, uncertainty remains for the last parasitic plant order, Balanophorales, often considered to include two families, Balanophoraceae and Cynomoriaceae. The nonphotosynthetic (holoparasitic) flowering plant Cynomorium coccineum has long been known to the Muslim world as "tarthuth" ...
Aasen John - - 2005
The Protoceratium reticulatum cell density at Flodevigen reached a maximum of 2200 cells/L on 16 May 2001. The levels of yessotoxins (YTXs) in blue mussels (Mytilus edulis) at the same site increased sharply by 14 May and peaked on 28 May, after which they steadily declined. No other algal species ...
Norberg Karen - - 2004
If two-parent care has different consequences for the reproductive success of sons and daughters, then natural selection may favour adjustment of the sex ratio at birth according to circumstances that forecast later family structure. In humans, this partnership-status hypothesis predicts fewer sons among extra-pair conceptions, but the rival 'attractiveness' hypothesis ...
Freeman Natalie C G - - 2004
An environmental measurement and correlation study of infant and toddler exposure to pesticides was carried out in a colonia south of the city of Laredo, Texas. As part of the study, homes were visited during the late spring or summer, and during the winter of 2000-2001. At each visit, families ...
< 1 2 3 4 5 6 7 8 9 10 >