Results 11 to 20 of about 63,777 (214)

Sexual dimorphism in dinosaurs

open access: yeseLife, 2023
Studying fossils from a mass-mortality event reveals evidence for sexual dimorphism and, unusually, equal numbers of males and females in a herd of dinosaurs.
Stella A Ludwig   +2 more
doaj   +1 more source

A study of primary ossification centers in the hind limbs of Awasi sheep fetuses by double stains method and radiography. [PDF]

open access: yesIraqi Journal of Veterinary Sciences, 2022
Forty Local Awasi sheep fetuses were collected from several areas in Ninevah Governorate, further than local slaughterhouse. Their estimated ages calculated depending on crown-rump length with the aid of Richardson formula.
Saif A. Salih, Naziha S. Ahmed
doaj   +1 more source

A genome-wide scan for quantitative trait loci affecting limb bone lengths and areal bone mineral density of the distal femur in a White Duroc × Erhualian F2 population

open access: yesBMC Genetics, 2008
Background Limb bone lengths and bone mineral density (BMD) have been used to assess the bone growth and the risk of bone fractures in pigs, respectively. It has been suggested that limb bone lengths and BMD are under genetic control.
Ma Junwu   +9 more
doaj   +1 more source

New light shed on the early evolution of limb-bone growth plate and bone marrow

open access: yeseLife, 2021
The production of blood cells (haematopoiesis) occurs in the limb bones of most tetrapods but is absent in the fin bones of ray-finned fish. When did long bones start producing blood cells?
Jordi Estefa   +6 more
doaj   +1 more source

Morphometrical analysis of the egyptian mongoose (herpestes ichneumon) hind limb bones (pelvis, femur, and crus) using th ree-dimensional reconstructed images [PDF]

open access: yesKafkas Universitesi Veteriner Fakültesi Dergisi, 2022
Th e Egyptian mongoose (Herpestes ichneumon) is on the International Union for Conservation of Nature"s Red List of Th reatened Species, and very little information is available on its morphometric characteristics.
Sema ÖZKADİF, Ayşe HALIGÜR
doaj   +1 more source

Bioprinting of 3D anatomical models of flat and long thoracic limb bones of domestic cats (Felis catus Linnaeus, 1758)

open access: yesBrazilian Journal of Veterinary Medicine, 2021
Any technique that assists the study of anatomy is important for the development of learning because knowledge creates a fundamental connection to the clinical and surgical routine. Three-dimensional (3D) model printing has gained visibility by achieving
Nathalia da Silva Ramos Elias'   +5 more
doaj   +1 more source

Adult rat bones maintain distinct regionalized expression of markers associated with their development.

open access: yesPLoS ONE, 2009
The incidence of limb bone fracture and subsequent morbidity and mortality due to excessive bone loss is increasing in the progressively ageing populations of both men and women.
Simon C F Rawlinson   +8 more
doaj   +1 more source

Fore limb bones of late Pleistocene dwarf hippopotamuses (Mammalia, Cetartiodactyla) from Madagascar previously determined as belonging to the crocodylid Voay Brochu, 2007 [PDF]

open access: yesFossil Record, 2010
A humerus and two radii of juvenile dwarf hippopotamuses are redescribed. The subfossil bones from the collection of the Museum für Naturkunde Berlin were erroneously assigned to the horned crocodile Voay robustus (Grandidier & Vaillant, 1872) by ...
O. Hampe   +3 more
doaj   +3 more sources

Management of fracture non-union long bones by limb reconstruction devices

open access: yesAsian Journal of Medical Sciences, 2022
Background: The limb reconstruction system (LRS), rail road fixator, and Ilizarov fixator are used to treat open fractures with bone loss and infective non-union of long bones.
Praveen Garg   +2 more
doaj   +1 more source

Development of limb bone laminarity in the homing pigeon (Columba livia) [PDF]

open access: yesPeerJ, 2020
Background Birds show adaptations in limb bone shape that are associated with resisting locomotor loads. Whether comparable adaptations occur in the microstructure of avian cortical bone is less clear.
Rylee S. McGuire   +3 more
doaj   +2 more sources

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