Results 21 to 30 of about 13,735,667 (283)
Population responses to observed climate variability across multiple organismal groups [PDF]
, 2021 A major challenge in ecology is to understand how populations are affected by increased climate variability. Here, we assessed the effects of observed climate variability on different organismal groups (amphibians, insects, mammals, herbaceous plants and
Storkey, J. +6 more
core +1 more source
Urban Science, 2021 Background:Aim: To examine racial/ethnic variations in the effect of parents’ subjective neighborhood safety on children’s cognitive performance. Methods: This cross-sectional study included 10,027 children from the Adolescent Brain Cognitive Development
Shervin Assari +11 more
doaj +1 more source
Assessment of Malocclusion in Population Groups
American Journal of Public Health and the Nations Health, 1959 Abstract An objective method for assessing malocclusion in population groups has been presented. The examination provides for scoring the departure of each tooth from its ideal position in the arch and the summing-up of these scores for a malalignment index. The examination procedure is both rapid and simple in its application. In its preliminary use
Lawrence E. Van Kirk, Elliott H. Pennell
openaire +3 more sources
Ethnic fertility differentials in Vietnam and their proximate determinants [PDF]
, 2009 Southeast Asia’s rapid economic growth and demographic change have brought divergent fertility behaviors, particularly those of socially excluded groups, into sharper focus.
Amin, Sajeda +1 more
core +1 more source
Epidemic Spreading in Group-Structured Populations
Physical Review X, 2023 Individuals involved in common group activities or settings, e.g., college students that are enrolled in the same class and/or live in the same dorm, are exposed to recurrent contacts of physical proximity. These contacts are known to mediate the spread of an infectious disease; however, it is not obvious how the properties of the spreading process are
Siddharth Patwardhan +3 more
openaire +4 more sources
Group selection on the boundary of a stable population [PDF]
Theoretical Population Biology, 1972 A model of group selection is constructed for the case of differential extinction acting on small boundary populations of a large, fixed population. Consideration is restricted to extinction operators acting at or near to carrying capacity. Under the assumption that the extinction rate is large relative to individual genetic parameters affecting gene ...
Boorman, Scott A., Levitt, Paul R.
openaire +4 more sources
Age groups and the measure of population aging [PDF]
Demographic Research, 2013 BACKGROUND Measures of population aging are important because they shape our perception of demographic trends. Indicators of aging based on fixed ages contributed to a dramatic portrayal of demographic evolutions, some of which were associated with the myth of decline. OBJECTIVE We propose a new measure of population aging, based on the relative age of
d'Albis, Hippolyte, Collard, Fabrice
openaire +6 more sources
Population, Environmental Risks, and the Climate Crisis (PERCC) [PDF]
, 2020 In 2016, the Population Council began to develop evidence on how to strengthen the resilience of vulnerable populations to adapt to environmental risks and the effects of extreme climate change.
Population Council
core +1 more source
Population growth and our caring capacity [PDF]
, 1994 This pamphlet was prepared by the Population Council for the landmark International Conference on Population and Development (ICPD), held in Cairo in ...
Population Council
core +1 more source
Children, 2021 Background: Recent studies have shown that parental educational attainment is associated with a larger superior temporal cortical surface area associated with higher reading ability in children.
Shervin Assari +12 more
doaj +1 more source