Results 71 to 80 of about 186,632 (207)

Effects of some environmental factors on the fecundity of Tilapia species (Family Cichlidae) in Kigera Reservoir, New Bussa [PDF]

open access: yes, 2005
The effects of some environmental factors on the fecundity of Tilapia species (Family Cichilidae) was carried out at the Kigera dam. Four Tilapia species caught were Tilapia zilli, Hemichromis fasciatus, Sarotherodon galilaeus and Oreochromis niloticus ...
Issa, E.A., Olufeagba, S.O., Raji, A.
core  

The olfactory transcriptome and progression of sexual maturation in homing chum salmon Oncorhynchus keta [PDF]

open access: yes, 2015
Reproductive homing migration of salmonids requires accurate interaction between the reception of external olfactory cues for navigation to the spawning grounds and the regulation of sexual maturation processes.
Chiba, H.   +5 more
core   +4 more sources

Playing safe: Assessing the risk of sexual abuse to elite child athletes [PDF]

open access: yes, 1997
Young athletes frequently suffer from being seen as athletes first and children second. This has consequences for their legal, civil and human rights as children (Kelly et al., 1995) and for the way in which sport organisations choose to intervene on ...
Armstrong, N.   +23 more
core   +1 more source

Allometric scaling of aerobic fitness outputs in school-aged pubertal girls

open access: yesBMC Pediatrics, 2019
Background This study aimed to determine the allometric exponents for concurrent size descriptors (stature, body mass and fat-free mass) and also to examine the contribution of chronological age and pubertal status combined with above mentioned size ...
André O. Werneck   +12 more
doaj   +1 more source

Contemporary and Historical Evidence to Suggest that Women’s Preference for Age at Birth of First Child Remains Consistent Across Time [PDF]

open access: yes, 2014
Women’s ability to reproduce is restricted by menarche and menopause. First children are, however, not typically born until some years after the onset of puberty. Other factors therefore contribute towards this delay. In this context, women’s hips do not
Brewer, Gayle   +3 more
core   +2 more sources

Influence of sexual maturation on anaerobic performance of male adolescent wrestlers

open access: yesRevista de Artes Marciales Asiáticas
This study aimed to examine the impact of sexual maturation on the anaerobic performance of male adolescent wrestlers. Methods: We included a sample of 29 freestyle and Greco-Roman wrestlers from various clubs in Barinas, Venezuela.
Yudelis Leonardo Torres-Álvarez   +2 more
doaj   +1 more source

COMPARATIVE STUDY ON THE HORMONAL STIMULATION STERLET (ACIPENSER RUTHENUS, LINNAEUS, 1758) USING CARP HYPOPHYSIS AND ARTIFICIAL HORMONE TYPE NERESTIN 5-5A

open access: yesScientific Papers Animal Science and Biotechnologies, 2023
Starting from the particular sturgeon reproductive biology, propagation of technology through artificial comprises a number of phases required including: selection, parking broodstocks cell maturation and sexual stimulation in order fertilized their ...
R. C. DIMA   +4 more
doaj  

Body Mass Index and Sexual Maturation in Adolescent Patients with Sickle Cell Anaemia

open access: yesNigerian Journal of Paediatrics
Background: Sickle cell anaemia (SCA) is associated with delayed sexual maturation. The Body Mass Index (BMI) or Quetelets Index is closely linked to events of puberty in normal children.
Ozigbo CJ , Nkanginieme KEO
doaj  

Aerobic endurance in young female athletes in respect to sexual maturation, age and growth

open access: yesRevista Brasileira de Cineantropometria e Desempenho Humano, 2004
The aims of this study were, in young female athletes: a) to describe the development of aerobic endurance in relation to different sexual maturation stages by each chronological age; b) to verify the existence of significant differences among the sexual
Maria Tereza Silveira Böhme
doaj  

Evo-devo of human adolescence: beyond disease models of early puberty [PDF]

open access: yes, 2013
Despite substantial heritability in pubertal development, much variation remains to be explained, leaving room for the influence of environmental factors to adjust its phenotypic trajectory in the service of fitness goals.
A Templeton   +69 more
core   +2 more sources

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