Results 111 to 120 of about 74,891 (270)

Biological and sociological interpretations of age-adjustment in studies of higher order birth rates [PDF]

open access: yes
Several studies of the effect of education on second or third birth rates (e.g. Hoem et al. (2001)) have used the concept of relative age at previous birth (B.Hoem (1996)). B.Hoem's idea was to focus on the social meaning of age at previous birth.
Mette Gerster, Niels Keiding
core  

What Goes First? Effects of Starvation on the Body Condition of a Neotropical Dung Beetle

open access: yesEntomologia Experimentalis et Applicata, EarlyView.
We investigated how prolonged starvation affects key physiological traits in the dung beetle Dichotomius bos. Prolonged starvation leads to significant reductions in body dry mass and fat reserves, while muscle mass remains unchanged. These findings indicate that dung beetles prioritize the maintenance of locomotor muscles while mobilizing stored ...
Leonardo Vilas‐Bôas M. P. de Cerqueira   +5 more
wiley   +1 more source

The gendered division of labor and its perceived fairness: Implications for childbearing in Germany

open access: yesDemographic Research, 2019
Background: Recently it has been claimed that gender equality and gender equity in the family tend to increase fertility. The strength of this association, however, depends on prevailing gender relations and the level of social support of employment and ...
Katja Köppen, Heike Trappe
doaj   +1 more source

Spatiotemporal modeling of schistosomiasis in Ghana: linking remote sensing data to infectious disease [PDF]

open access: yes, 2017
More than 90% of the worldwide schistosomiasis burden falls on sub-Saharan Africa. Control efforts are often based on infrequent, small-scale health surveys, which are expensive and logistically difficult to conduct.
Biritwum, Nana-Kwadwo   +7 more
core  

Hidden IR structures in NGC 40: signpost of an ancient born-again event

open access: yes, 2019
We present the analysis of infrared (IR) observations of the planetary nebula NGC 40 together with spectral analysis of its [WC]-type central star HD 826.
Guerrero, M. A.   +3 more
core   +1 more source

Seasonality as a structuring factor of the dung beetle community in burned neotropical savannas

open access: yesEcological Entomology, EarlyView.
We tested the effects of fire, vegetation cover and seasonality on dung beetle communities, focusing on species richness, composition and co‐occurrence patterns in savannas. Fire did not affect species richness. However, seasonality was the dominant factor influencing species composition, followed by fire and vegetation cover.
Nayara Letícia Reis   +3 more
wiley   +1 more source

The role of habitat simplification and seasonality in shaping interactions between ants, plants and herbivores in a neotropical savanna

open access: yesEcological Entomology, EarlyView.
We evaluated how chronic anthropogenic disturbances (CAD) and seasonal variation influence interactions between ants and plants with extrafloral nectaries (EFN's), with emphasis on the responses of ants, herbivores, and plants. Ant and herbivore diversity remained stable across seasons in the preserved cerrado, whereas the pasture had higher ant ...
Edvânia Costa de Oliveira Sá   +6 more
wiley   +1 more source

Regionalización climática de la provincia de Holguín

open access: yesRevista Cubana de Meteorología, 2016
El presente trabajo expone la regionalización climática de la provincia de Holguín sobre la base de la Norma climática 1981-2010. Los datos empleados fueron los de temperatura y precipitación correspondientes a las estaciones meteorológicas y ...
Graciela Pérez Rivas, Axel Hidalgo Mayo
doaj  

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