Results 61 to 70 of about 186,632 (207)

Aerobic fitness and biological and sociodemographic indicators in female school children

open access: yesRevista Brasileira de Cineantropometria e Desempenho Humano, 2013
Aerobic fitness is an important health-related fitness component. The objective of this study was to analyze the influence of age, growth, body composition, sexual maturation and socioeconomic status on the aerobic fitness of female school children ...
Roberto Régis Ribeiro   +5 more
doaj   +1 more source

Maturation, Spawning Period, and Fecundity of the White Crappie, Pomoxis annularis Rafinesque, in Beaver Reservoir, Arkansas [PDF]

open access: yes, 1981
Gonosomatic indices and ovum diameter frequency distributions showed that the Beaver Reservoir white crappie spawns from late April through May. During the spawning season females release eggs more than once.
Kilambi, Raj V., Thomas, Janet L.
core   +2 more sources

Critical Steps of Plasmodium falciparum Ookinete Maturation [PDF]

open access: yes, 2020
The egress and fertilization of Plasmodium gametes and development of a motile ookinete are the first crucial steps that mediate the successful transmission of the malaria parasites from humans to the Anopheles vector. However, limited information exists
Alano, P.   +5 more
core   +1 more source

Sexually Matured Female Mice showed Higher γ-Linolenic Acid (GLA) in the Muscle Tissue

open access: yesJournal of Animal Reproduction and Biotechnology, 2015
The sexual maturation occurred by the changes of steroid hormones was known to sex-dependently and/or agedependently regulate the lipid metabolism in various animal species.
Chang Seok Park   +2 more
doaj   +1 more source

Maturation level in adolescents: effects on body composition and physical activity changes [PDF]

open access: yes, 2016
Background and aims: Longitudinal studies help move researchers closer to understanding determinants and mediators of maturation, physical activity (PA) and adiposity.
Alvero-Cruz, Jose Ramon   +3 more
core  

Dissection of the gene regulatory network underlying sexual maturity divergence in Jining Bairi chickens through integrated RNA-seq and WGCNA analysis

open access: yesPoultry Science
Sexual maturity is a pivotal reproductive trait in laying hens because it is directly related to egg production. The age at first egg is a definitive indicator of sexual maturity attainment in laying hens. Most Chinese indigenous chicken breeds exhibit a
Jiale Zhang   +6 more
doaj   +1 more source

Access to Abundant Resources Mitigates the Effects of Nutritional Status on Life History Trade‐Offs: An Experimental Study on Burying Beetles

open access: yesEcology and Evolution
Individuals can adjust allocation strategies based on intrinsic and extrinsic factors. Variation in nutritional status during sexual maturation and resource acquisition during breeding may affect life history functions and trade‐offs.
Wenxia Wang   +4 more
doaj   +1 more source

Genome-wide circular RNAs signatures involved in sexual maturation and its heterosis in chicken

open access: yesJournal of Integrative Agriculture
Sexual maturation heterosis has been widely exploited in animal crossbreeding. However, the underlying mechanism has been rarely explored in chicken. In the present study, we performed the reciprocal crossing between White Leghorn and Beijing You chicken
Yuanmei Wang   +12 more
doaj   +1 more source

Life history and ecological genetics of the colonial ascidian Botryllus schlosseri [PDF]

open access: yes, 2015
The colonial ascidian Botryllus schlosseri is a cosmopolitan, marine filter feeder, introduced as a laboratory research organism in the 1950s. Currently, it is widely used in many laboratories to investigate a variety of biological questions.
Ballarin, Loriano   +7 more
core   +1 more source

A note on the von Bertalanffy growth function concerning the allocation of surplus energy to reproduction [PDF]

open access: yes, 2012
We propose an extended form of the von Bertalanffy growth function (VBGF), where the allocation of surplus energy to reproduction is considered. Any function can be used in our model to describe the ratio of energy allocation for reproduction to that ...
Akamine, Tatsuro   +3 more
core  

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