An extrachromosomal factor, termed son-killer (sk), affects the sex ratio in a parasitoid wasp, Nasonia (=Mormoniella) vitripennis. The factor is maternally transmitted and alters the secondary sex ratio of an infected female through mortality of approximately 80% of the male embryos. No effect on the primary (zygotic) sex ratio is observed. Ninety-five percent of the daughters of an infected f...

The aim of the study was to determine quantitative and qualitative differences in the morphological-motor status between elementary school first-graders of both sexes in 1992 and 2002. A standard set of 11 variables currently used in the Croatian school system to evaluate the morphological, motor and functional status of school children was employed at the beginning of academic years in a sampl...

Abstract Introduction The influence of risk factors on the development defaecatory problems is difficult to ascertain due heterogeneity published evidence. An understanding impact these important in selecting targets for disease prevention. Methods Risk chronic constipation and faecal incontinence were anonymously evaluated using a Delphi technique with 50 experts from Pelvic Floor Society betw...

The Female Condom Attitudes Scale is an instrument comprising five correlated factors derived from 15 Likert-scale survey items that measure women's attitudes toward the female condom. This scale originated from the 30-item scale of Choi, Gregorich, Anderson, Grinstead, and Gómez (2001; manuscript under review). Exploratory factor analysis of this scale extracted eight correlated factors. Relia...

The interaction was examined in vitro of retinoic acid and thyroid hormone with rabbit reticulocyte Ca2(+)-ATPase. L-Thyroxine (T4) (0.1 nM) stimulated female-source Ca2(+)-ATPase activity (+21%; P less than 0.03) and inhibited male-source enzyme (-20%; P less than 0.05). Addition of retinoic acid (10 nM-1 microM) did not influence T4-inhibitable male-source Ca2(+)-ATPase, but caused a 52% loss...

The aim of the study was to identify and compare morphological characteristics of 12-year-old male and female children from Imotska krajina. The structure of a set of 23 morphological space variables were determined in a sample of 75 male and 67 female children by use of factor analysis for each sex in separate. Factor structure showed two basic superior latent dimensions responsible for direct...

Specimens of Hoplias malabaricus from Lagoa Carioca, an isolated lake of the Rio Doce State Park (state of Minas Gerais, Brazil), were cytogenetically studied. The diploid number was found to be constant, i.e., 2n = 42 chromosomes, although two karyotypic forms were found: karyotype A, characterized by 22M + 20SM chromosomes, observed only in a male specimen, and karyotype B, characterized by 2...

BACKGROUND The hospital anxiety and depression scale (HADS) is a common screening tool designed to measure the level of anxiety and depression in different factor structures and has been extensively used in non-psychiatric populations and individuals experiencing fertility problems. OBJECTIVE The aims of this study were to evaluate the factor structure, item analyses, and internal consistency...