Results 281 to 290 of about 1,962,743 (342)
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Refractive errors in a Brazilian population: age and sex distribution
Ophthalmic and Physiological Optics, 2014Abstract Purpose To determine the prevalence of refractive errors and their distribution according to age and sex in a Brazilian population. Methods This population‐based cross‐sectional study ...
Fabio H. Ferraz +4 more
semanticscholar +4 more sources
Population Distribution by Age and Sex
Encyclopedia of Gerontology and Population Aging, 2021semanticscholar +2 more sources
The desmoid tumor. I. Incidence, sex-, age- and anatomical distribution in the Finnish population.
American Journal of Clinical Pathology, 1982We have (1) estimated the incidence of desmoid tumor (DT) in the Finnish population, and (2) defined statistically four major age components of the DT with different biological properties. The incidence of the DT, based on admissions to four separate hospitals and on the number of pathological biopsy specimens analyzed at the Central Pathological ...
J. Reitamo +3 more
semanticscholar +3 more sources
The social regulation of population density and age-sex distribution in the toque monkey
Behaviour, 1977[The relationships between behavioral, ecologicaland demographic data are examined for a wild population of nearly 450 toque monkeys, Macaca sinica, of Sri Lanka, based on 3½ years of continuous, plus 3 years of intermittent study. Under relatively stable ecological conditions troops fluctuated in size within limits, and the net growth of the ...
W. Dittus
semanticscholar +2 more sources
American journal of respiratory and critical care medicine, 1995
Abstract Bronchial responsiveness (BR) was assessed by the methacholine challenge test in 1,694 subjects from a sample of the general population (aged 8 to 73 yr) enrolled in a prospective epidemiologic study on the natural history of chronic obstructive pulmonary disease (COPD).
P. Paoletti +9 more
semanticscholar +5 more sources
Abstract Bronchial responsiveness (BR) was assessed by the methacholine challenge test in 1,694 subjects from a sample of the general population (aged 8 to 73 yr) enrolled in a prospective epidemiologic study on the natural history of chronic obstructive pulmonary disease (COPD).
P. Paoletti +9 more
semanticscholar +5 more sources
Journal of Neurosurgery, 2010
Object The aim of this study was to examine the distribution of intracranial arachnoid cysts in a large and unselected patient population with special emphasis on sidedness and sex distribution. Methods In total, 299 patients with 305 arachnoid cysts were studied.
Christian A Helland +2 more
semanticscholar +2 more sources
Object The aim of this study was to examine the distribution of intracranial arachnoid cysts in a large and unselected patient population with special emphasis on sidedness and sex distribution. Methods In total, 299 patients with 305 arachnoid cysts were studied.
Christian A Helland +2 more
semanticscholar +2 more sources
Growth and Sex Distribution in an Anadromous Population of Arctic Char in Northern Norway
Transactions of the American Fisheries Society, 1994Abstract Presmolt Arctic char Salvelinus alpinus in the River Halselva watershed, northern Norway, were analysed with respect to growth and sex distribution. Two main hypotheses were tested: (1) females dominate among the first-time sea migrants; and (2) age at smoltification depends on presmolt growth rate. Our results showed no significant difference
R. Strand, T. G. Heggberget
semanticscholar +2 more sources
International Journal of Geographical Information Science, 2020
The Charleston Estuarine System Stock (CESS) of common bottlenose dolphins (Tursiops truncatus) has been the focus of population monitoring for the past 20 years.
Hannah Bouchillon, N. Levine, P. Fair
semanticscholar +1 more source
The Charleston Estuarine System Stock (CESS) of common bottlenose dolphins (Tursiops truncatus) has been the focus of population monitoring for the past 20 years.
Hannah Bouchillon, N. Levine, P. Fair
semanticscholar +1 more source
Discrete-time population dynamics of spatially distributed semelparous two-sex populations
Journal of Mathematical Biology, 2021Spatially distributed populations with two sexes may face the problem that males and females concentrate in different parts of the habitat and mating and reproduction does not happen sufficiently often for the population to persist. For simplicity, to explore the impact of sex-dependent dispersal on population survival, we consider a discrete-time ...
openaire +3 more sources
Biology Letters, 2022
Abstract In the isopod Armadillidium vulgare , many females produce progenies with female-biased sex ratios, due to two feminizing sex ratio distorters (SRD): Wolbachia endosymbionts and the f element.
Durand, Sylvine +7 more
openaire +3 more sources
Abstract In the isopod Armadillidium vulgare , many females produce progenies with female-biased sex ratios, due to two feminizing sex ratio distorters (SRD): Wolbachia endosymbionts and the f element.
Durand, Sylvine +7 more
openaire +3 more sources