نتایج جستجو برای: fracture parameters

تعداد نتایج: 669137  

2017
Sebastian Felix Baumbach Wolf Christian Prall Michael Kramer Mareen Braunstein Wolfgang Böcker Hans Polzer

BACKGROUND Fractures to the base of the fifth metatarsal are common, but their treatment remains controversial. Especially for Lawrence and Botte (L&B) type II fractures, there is conflicting evidence and consequently no consensus. Further, many authors consider displacement, articular involvement, and number of fragments an indication for surgery, although evidence is missing. The aim of this ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه بیرجند 1389

there has been a gradual shift of focus from the study of rule systems, which have increasingly been regarded as impoverished, … to the study of systems of principles, which appear to occupy a much more central position in determining the character and variety of possible human languages. there is a set of absolute universals, notions and principles existing in ug which do not vary from one ...

2011
H. O. Ghaffari M. H. B. Nasseri R. P. Young

Through this research, embedded synthetic fracture networks in rock masses are studied. To analysis the fluid flow complexity in fracture networks with respect to the variation of connectivity patterns, two different approaches are employed, namely, the Lattice Boltzmann method and graph theory. The Lattice Boltzmann method is used to show the sensitivity of the permeability and fluid velocity ...

Journal: :razavi international journal of medicine 0
hassan rahimi orthopedic research center, mashhad university of medical sciences, mashhad, ir iran mohammad gharehdaghi orthopedic research center, mashhad university of medical sciences, mashhad, ir iran; orthopedic research center, school of medicine, mashhad university of medical sciences, mashhad, ir iran. tel: +98-5118523300, fax: +98-5118549234 ali birjandinejad research and education department, razavi hospital, mashhad, ir iran masoud mirkazemi research and education department, razavi hospital, mashhad, ir iran hamidreza azimi dental research center, faculty of dentistry, mashhad univercity of medical sciences, mashhad, ir iran

background femur fracture is one of the most common fractures in children. certain parameters such as the patient’s age, the exact location of fracture, type of fracture, the mechanism of fracture, and the accompanying injuries determine which one of the many treatment techniques be used in each case. objectives we aimed to compare the results of close and open techniques in pediatric femoral s...

  Background: Some studies have previously shown that geometry of proximal femur can affect the probability of fracture and type of fracture. It happens since the geometry of the proximal femur determines how a force is applied to its different parts. In this study, we have compared proximal femur’s geometric characteristics in femoral neck (FNF), intertrochanteric (ITF) and Subtrochanteric (ST...

Journal: :BMC Musculoskeletal Disorders 2007
Björn Skoglund Per Aspenberg

BACKGROUND HMG-CoA reductase inhibitors, statins, are widely prescribed to lower cholesterol. High doses of orally administered simvastatin has previously been shown to improve fracture healing in a mouse femur fracture model. In this study, simvastatin was administered either subcutaneously or directly to the fracture area, with the goal of stimulating fracture repair at acceptable doses. ME...

Journal: :The Journal of experimental biology 1996
M A Kasapi J M Gosline

The mechanical properties of fully hydrated equine hoof wall were examined at various loading rates in compact tension (CT) fracture, tensile and three-point bending dynamic tests to determine possible effects of hoof wall viscoelasticity on fracture toughness and tensile parameters. Four cross-head rates were used in CT tests: 1.7 x 10(-5), 1.7 x 10 (-3), 1.7 x 10(-2) and 2.5ms-1; four strain ...

2013
Jiazi Gao He Gong Xing Huang Juan Fang Dong Zhu Yubo Fan

The aim of this study was to investigate the relationship between microstructural parameters, material distribution, and mechanical properties of sheep tibia at the apparent and tissue levels during the fracture healing process. Eighteen sheep underwent tibial osteotomy and were sacrificed at 4, 8, and 12 weeks. Radiographs and micro-computed tomography (micro-CT) scanning were taken for micros...

Journal: :Prilozi 2011
K Kasapinova V Kamiloski

INTRODUCTION There are not enough scientific papers on the outcome of distal radius fractures evaluated by the patients themselves. There is disagreement over the degree of correlation between the radiological and functional outcome and the disability of the patients. AIM To analyse the correlation between the patient-rated outcome (disability) and radiological parameters of distal radius fra...

2016
Xinfang Ma

Hydraulic fracturing in shale gas reservoirs has usually resulted in complex fracture network. The results of micro-seismic monitoring showed that the nature and degree of fracture complexity must be clearly understood to optimize stimulation design and completion strategy. This is often called stimulated reservoir volume (SRV). In the oil & gas industry, stimulated reservoir volume has made th...

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