Results 41 to 50 of about 3,149 (228)

Morphometric studies on the appendicular bony skeleton of the ostriches (Struthio Camelus)

open access: yesBMC Veterinary Research, 2023
Background Morphometric study of the bony elements of the appendicular skeleton in the ostrich was fully described and identified. The appendicular skeleton included the bones of the pectoral girdle, the wing, the pelvic girdle and the pelvic limb ...
Menna Allah M. Kassem   +3 more
doaj   +1 more source

The Role of Osteocytes in Targeted Bone Remodeling: A Mathematical Model [PDF]

open access: yesPLoS ONE 2013 May 22; 8(5): e63884, 2012
Until recently many studies of bone remodeling at the cellular level have focused on the behavior of mature osteoblasts and osteoclasts, and their respective precursor cells, with the role of osteocytes and bone lining cells left largely unexplored. This is particularly true with respect to the mathematical modeling of bone remodeling.
arxiv   +1 more source

Bone Adaptation as a Geometric Flow [PDF]

open access: yesarXiv, 2021
This paper presents bone adaptation as a geometric flow. The proposed method is based on two assumptions: first, that the bone surface is smooth (not fractal) permitting the definition of a tangent plane and, second, that the interface between marrow and bone tissue phases is orientable.
arxiv  

Hereditary Multiple Osteochondromas and Acute Lymphoblastic Leukemia: A Possible Role for EXT1 and EXT2 in Hematopoietic Malignancies

open access: yesAmerican Journal of Medical Genetics Part A, EarlyView.
ABSTRACT Hereditary multiple osteochondromas (HMO) is an autosomal dominant disorder caused by heterozygous deleterious variants in the EXT1 or EXT2 genes. While the clinical core phenotype is well established and mainly consists of bone deformities, limb length discrepancies, multiple benign bone neoplasms, and increased risk of chondrosarcoma, the ...
Francesco Comisi   +7 more
wiley   +1 more source

Is cranial anatomy indicative of fossoriality? A case study of the mammaliaform Hadrocodium wui

open access: yesThe Anatomical Record, EarlyView.
Abstract Determining the ecology of fossil species presents considerable challenges due to the often fragmentary preservation of specimens. The mammaliaform Hadrocodium wui from the Jurassic of China is known only from the cranium and mandible but may have had a fossorial lifestyle.
Molly Tumelty, Stephan Lautenschlager
wiley   +1 more source

Endocortical bone loss in osteoporosis: The role of bone surface availability [PDF]

open access: yesInt J Numer Meth Biomed Engng (2013) 29:1307-1322, 2012
Age-related bone loss and postmenopausal osteoporosis are disorders of bone remodelling, in which less bone is reformed than resorbed. Yet, this dysregulation of bone remodelling does not occur equally in all bone regions. Loss of bone is more pronounced near and at the endocortex, leading to cortical wall thinning and medullary cavity expansion, a ...
arxiv   +1 more source

Review of the anatomical basis for predicting plutonium alpha particle radiation induced osteogenic cancers

open access: yesThe Anatomical Record, EarlyView.
Abstract Plutonium was discovered and first synthesized in the early 1940's. Several isotopes of plutonium are used in nuclear technologies, 238Pu for heat generation and 239Pu for energy production and weapons. Both isotopes emit alpha particles, which pose a significant radiation hazard when incorporated into the body.
Scott C. Miller
wiley   +1 more source

Modelling the anabolic response of bone using a cell population model [PDF]

open access: yesJ Theor Biol 307 (2012) 42-52, 2011
To maintain bone mass during bone remodelling, coupling is required between bone resorption and bone formation. This coordination is achieved by a network of autocrine and paracrine signalling molecules between cells of the osteoclast lineage and cells of the osteoblastic lineage.
arxiv   +1 more source

Functional outcomes of proximal row carpectomy: 2-year follow-up [PDF]

open access: yesActa Ortopédica Brasileira, 2015
OBJECTIVE: To evaluate functional outcomes of patients submit-ted to proximal row carpectomy for the treatment of wrist arthri-tisMETHODS: This is a retrospective study using wrist motion and grip strenght of patients diagnosed with Kienböck disease and ...
Luiz Garcia Mandarano-Filho   +4 more
doaj   +1 more source

Fractures and Dislocations of the Carpal Bones [PDF]

open access: yesClinics in Sports Medicine, 1986
The most common wrist fractures in athletes are fractures of the scaphoid and fractures of the hook of the hamate. Accurate diagnosis and conservative treatment are extremely important. A physician should not compromise principles of treatment for a rapid return of the athlete to competition, because all too often this will jeopardize eventual recovery
Norman P. Zemel, Herbert H. Stark
openaire   +3 more sources

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