Results 41 to 50 of about 4,192 (210)

Ontogeny of murine bony semicircular canal form

The Anatomical Record, EarlyView.
Abstract The labyrinthine geometry and functional anatomy of the semicircular canals have intrigued scientists for decades, and there has been considerable interest in understanding how these complex structures grow and develop with evidence emerging from human studies that size maturation occurs exceptionally early by comparison with other systems ...
Marcela Cárdenas‐Serna, Nathan Jeffery   +1 more
wiley   +1 more source

Genetic relationship between growth and reproductive traits in Nellore cattle

Animal, 2012
The objective of this study was to evaluate the genetic relationship between postweaning weight gain (PWG), heifer pregnancy (HP), scrotal circumference (SC) at 18 months of age, stayability at 6 years of age (STAY) and finishing visual score at 18 ...
M.L. Santana, Jr, J.P. Eler, J.B.S. Ferraz, E.C. Mattos   +3 more
doaj   +1 more source

Developmental differences in cortical bone structure in chimpanzee and human femora reflect early locomotor independence in humans

The Anatomical Record, EarlyView.
Abstract The cortical bone structure of long bone diaphyses changes throughout growth via skeletal modeling and has important implications for bone strength and structural integrity. Ontogenetic trends in diaphyseal structure have been identified in both chimpanzees and humans but it is not yet clear how these trends compare given notable differences ...
Karen R. Swan, Rachel Ives, Zewdi J. Tsegai, Louise T. Humphrey   +3 more
wiley   +1 more source

Obesidade e maturação sexual precoce: um estudo transversal com escolares em Florianópolis - SC [PDF]

, 2007
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro de Ciências da Saúde. Programa de Pós-Graduação em Nutrição.O objetivo deste estudo foi investigar a associação entre maturação sexual precoce e obesidade em meninos e meninas de 10 ...
Adami, Fernando
core  

Estimativas de herdabilidade para idade ao primeiro parto de novilhas da raça Nelore Heritability estimates for age at first calving in Nelore cattle

Revista Brasileira de Zootecnia, 2004
Estimaram-se parâmetros genéticos para idade ao primeiro parto (IPP) de, aproximadamente, 6.000 novilhas, utilizando-se três diferentes definições de grupo contemporâneo (GC).
Laila Talarico Dias, Lenira El Faro, Lúcia Galvão de Albuquerque   +2 more
doaj   +1 more source

Humans are not unique: difficult birth is common in placental mammals

Biological Reviews, EarlyView.
ABSTRACT Human childbirth is widely presumed to be uniquely difficult and dangerous compared to birth in other mammals. Tight fetopelvic proportions can result in obstructed labour and contribute to high rates of maternal and neonatal mortality. Ideas summarised under the ‘obstetrical dilemma’ have contributed to this assumption by explaining difficult
Nicole D. S. Grunstra
wiley   +1 more source

Efeito da idade de exposição de novilhas à reprodução sobre estimativas de herdabilidade da idade ao primeiro parto em bovinos Nelore Effect of age of exposure of heifers to reproduction on heritability estimates for age at first calving in Nelore cattle

Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2004
Estimou-se a herdabilidade da idade ao primeiro parto (IPP) a partir de quatro conjuntos com diferentes tipos de informação. A primeira estimativa (IPP1) foi realizada com as novilhas (n= 6.222) expostas apenas na estação "normal", ou seja, aos 24 meses ...
L.T. Dias, L. EL Faro, L.G. Albuquerque
doaj   +1 more source

Role of SoxE transcription factors in development and disease

Developmental Dynamics, EarlyView.
Abstract Sox8, Sox9, and Sox10 arose by multiple rounds of genome duplications from a single SoxE gene in ancestral vertebrates. In this review, we will briefly discuss the molecular structure and function of SoxE transcription factors and their evolutionary origin. We will then discuss their expression, function, and developmental disorders.
Merin Lawrence, Gerhard Schlosser
wiley   +1 more source

Arachnoid Cyst with Gnrh-Dependent Sexual Precocity and Growth Hormone Deficiency [PDF]

, 2009
The coexistence of gonadotropin-releasing hormone (GnRH)–dependent sexual precocity and growth hormone deficiency in patients with arachnoid cysts is rarely reported, and its pathogenesis is not well recognized.
HUANG, HSIANG-PO;TUNG, YI-CHING;TSAI, WEN-YU;KUO, MENG-FAI;PENG, SHINN-FORNG, 黃祥博;童怡靖;蔡文友;郭夢菲;彭信逢   +1 more
core  

Van Wyk-Grumbach syndrome a great masquerader of primary hypothyroidism

Journal of Clinical and Scientific Research
Children with primary hypothyroidism typically present with delayed growth and development, precocious puberty but on rare occasions can present with pituitary macroadenoma. This is called Van Wyk-Grumbach syndrome (VWGS).
Beatrice Anne, Vivek Kumar, Mounica Tavva   +2 more
doaj   +1 more source