Search results for "Demography"
showing 10 items of 2125 documents
A century of trends in adult human height
2016
Article
Hypovitaminosis D in Young Basketball Players: Association with Jumping and Hopping Performance Considering Gender
2021
This study aimed to verify whether a group of young well-trained basketball players presented deficiencies in vitamin D concentration, and to analyze whether there was an association between vitamin D concentration and jumping and hopping performance. Gender differences were considered. Twenty-seven players from an international high-level basketball club (14 female, 16.00 ± 0.55 years
Qu’est-ce qu’une génération ?
2021
International audience
Children and Parental Barriers to Active Commuting to School: A Comparison Study
2021
The main objectives of this study were: to compare the barriers to active commuting to and from school (ACS) between children and their parents separately for children and adolescents; and to analyze the association between ACS and the children’s and parents’ barriers. A total of 401 child–parent pairs, from Granada, Jaén, Toledo and Valencia, self-reported, separately, their mode of commuting to school and work, respectively, and the children’s barriers to ACS. T-tests and chi-square tests were used to analyze the differences by age for continuous and categorical variables, respectively. Binary logistic regressions were performed to study the association between ACS barriers of children an…
Changes in Family Income around the Time of Birth of Children in Germany between 1985 and 2004
2010
Während der Verlauf und die Ursachen des Geburtenverhaltens intensiv erforscht wurden, sind die finanziellen Folgen einer Geburt empirisch kaum beachtet worden. Daher werden hier kurzfristige Wohlstandsveränderungen von Familien (hinsichtlich verfügbarem Haushaltseinkommen und Äquivalenzeinkommen) rund um die Geburt eines Kindes in längsschnittlicher Perspektive analysiert und auf ihre Ursachen untersucht. Zu diesem Zweck wurden die Daten des Sozio-oekonomischen Panels (1984-2005) mittels Fixed-Effekt-Panelregressionsmodellen analysiert. Als Ergebnis kann festgehalten werden, dass die finanziellen Folgen einer Geburt in den letzten Jahren deutlich gewachsen sind und vor allem das erste Kind…
Fertility, Family, and Human Migrations
2019
The aim of this course is to introduce students to the relationship between demographic change, economic growth, and human well-being. Nothing is more fundamental to our experience whether as individuals, as family members and in society, as death, birth, and our physical place in the world. While those basic features of human life have remained a constant feature of our existence, the nature of the economic and social forces that determine the character of these interactions have changed considerably over time. The topics covered in the course illustrate examples of how human societies have wrestled with demographic problems both in history and at present. We study these topics through an …
Dimensions de la vulnérabilité liée au paludisme dans deux zones de Madagascar : apports d'une approche mixte
2019
Le risque de décès, d’aggravation d’une maladie ou d’endettement dans ses suites, dépend des dispositifs et moyens disponibles et accessibles à la population pour y faire face. Ainsi, la vulnérabilité liée au paludisme dépend des contextes socio-économique et géoclimatique qui déterminent le risque de transmission, des comportements individuels ou collectifs, et des moyens des ménages pour faire face à la maladie, la prendre en charge ou la prévenir.La présente étude vise à identifier les déterminants de la vulnérabilité liée au paludisme de la population de Madagascar, en analysant le contexte et les comportements de prévention et de recours aux soins médicaux en cas de fièvre. Une étude q…
Predicting the age at natural menopause in middle-aged women
2021
Objective To predict the age at natural menopause (ANM). Methods Cox models with time-dependent covariates were utilized for ANM prediction using longitudinal data from 47 to 55-year-old women (n = 279) participating in the Estrogenic Regulation of Muscle Apoptosis study. The ANM was assessed retrospectively for 105 women using bleeding diaries. The predictors were chosen from the set of 32 covariates by using the lasso regression (model 1). Another easy-to-access model (model 2) was created by using a subset of 16 self-reported covariates. The predictive performance was quantified with c-indices and by studying the means and standard deviations of absolute errors (MAE ± SD) between the pre…
A spatial and sectoral analysis of firm demography in Italy
2013
Effect of the Game Design, the Goal Type and the Number of Players on Intensity of Play in Small-Sided Soccer Games in Youth Elite Players
2015
Abstract The aim of this study was to compare the effects of game design modification, the type of the goal and the number of players on the intensity of play in small-sided soccer games (SSGs) in youth elite players. Twenty young soccer players (age 13.7 ± 0.5 years, body mass 57.4 ± 7.8 kg, body height 1.67 ± 7.8 m, maximal heart rate 201.1 ± 8.2 beats/min) performed three types of SSGs (possession play (PP) vs. regular goals (RG) vs. small goals (SG)) in both four-a-side and six-a-side formats. The heart rate responses were recorded and analysed as an indicator of the intensity of play. The four-a-side format obtained higher intensity of play than six-a-side for PP (p<0.05), but not f…