Fracture Energy
Mostrando 1-12 de 119 artigos, teses e dissertações.
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1. Celiac disease and bone
Abstract Celiac disease (CD) is an autoimmune disorder characterized by small intestinal inflammation triggered by gluten ingestion in genetically-predisposed individuals. A frequent extra-intestinal manifestation of CD is metabolic bone disease which contributes to an increased risk of fracture. The mechanisms underlying bone disease in CD remain incomplete
Archives of Endocrinology and Metabolism. Publicado em: 2022
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2. Microstructure and diametral fracture strength of spark plasma sintered WC-6Co-0.2B and WC-6Co-0.5B ceramic composites from nanosized and metastable WC powders
Abstract The present work aimed at evaluating the microstructures and mechanical properties of spark plasma sintered WC-6 wt% Co ceramic composites doped with boron (0.2 and 0.5 wt%). W-50 at% C (W-6.13 wt% C) powders produced under different milling times (20, 60, 180, and 600 min) were used as starting materials and subsequently mixed with Co (6 wt%) and B
Cerâmica. Publicado em: 2022
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3. Stress fractures
ABSTRACT Stress fractures (SF) represent 10%-20% of all injuries in sport medicine. An SF occurs when abnormal and repetitive loading is applied on normal bone: The body cannot adapt quickly enough, leading to microdamage and fracture. The etiology is multifactorial with numerous risk factors involved. Diagnosis of SF can be achieved by identifying intrinsic
Archives of Endocrinology and Metabolism. Publicado em: 2022
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4. Influence of sintering parameters on the microstructure and mechanical properties of nanosized 3Y-TZP ceramics
Abstract The fracture toughness of 3Y-TZP ceramics obtained from a nanocrystalline powder with an optimized microstructure and highly transformable tetragonal grains was investigated. Samples of ZrO2-3 mol% Y2O3 were sintered at temperatures between 1250 and 1400 °C, with isothermal holding times of up to 16 h. Samples sintered at 1250 °C exhibited relativ
Cerâmica. Publicado em: 2021-03
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5. Findings regarding non-sexual penile fracture in a referral emergency hospital
ABSTRACT Purpose: To describe penile fracture (PF) findings with non-sexual etiology in a referral emergency hospital, with emphasis on demographic data, clinical and intraoperative findings and long-term outcomes. Materials and Methods: Patients with PF of non-sexual cause operated at our institution from January 2014 to January 2019 were submitted to sur
Int. braz j urol.. Publicado em: 2021-03
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6. Effect of LZSA glass-ceramic addition on the erosive wear of pressureless sintered alumina
Abstract This study aims to evaluate the influence of the 11.6Li2O-16.8ZrO2-68.2SiO2-3.4Al2O3 (mol%) glass-ceramic addition (LZSA, 7 to 21 vol%) on the erosive wear of alumina in comparison to values of pure alumina obtained from the literature. Thus, composites were prepared from three commercial alumina of different initial particle sizes. Specimens were o
REM, Int. Eng. J.. Publicado em: 2020-06
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7. Tarsal Navicular Fracture in a Parkour Practitioner, a Rare Injury - Case Report and Literature Review
Resumo As fraturas do escafoide társico, bem como outras lesões do médiopé, são raras e podem resultar em incapacidade grave se não forem tratadas adequadamente. Parkour, um esporte moderno, está ganhando popularidade entre os jovens em áreas urbanas, e é propenso a traumatismos de alta energia, sendo estes escassamente descritos na literatura. O pr
Rev. bras. ortop.. Publicado em: 13/12/2019
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8. Numerical analysis of torsional tangent rigidity of reinforced concrete waffle slab
Resumo Este trabalho de investigação científica aborda a análise da rigidez tangente à torção de lajes nervuradas de concreto armado por meio de comparações da análise numérica com resultados de ensaios experimentais, cujo cálculo foi feito no programa ATENA. Tal programa foi desenvolvido especialmente para cálculo de estruturas de concreto arma
Rev. IBRACON Estrut. Mater.. Publicado em: 13/12/2019
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9. Biomechanical Test after Hip Cannulated Screw Removal (in vitro Analysis)
Resumo Objetivo Avaliar, pormeio de ensaio biomecânico, a resistência e a energia necessária para ocorrência de fratura do fêmur proximal em osso sintético após retirada de parafusos canulados em forma de triângulo invertido e comparar os resultados obtidos com técnica de reforço utilizando polimetilmetacrilato (PMMA). Métodos Foramutilizados
Rev. bras. ortop.. Publicado em: 07/10/2019
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10. Evaluation of the Laboratorial Profile of Elderlies with Proximal Femur Fracture by Low Energy Mechanism
Resumo Objetivo Avaliar o perfil laboratorial de idosos com fratura de fêmur proximal e verificar a relação dos dados com o desfecho da própria fratura e como desfecho óbito. Métodos Estudo transversal de pacientes admitidos na emergência ortopédica de um hospital referência, entre os meses de fevereiro e abril de 2017, com fratura de fêmur pro
Rev. bras. ortop.. Publicado em: 07/10/2019
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11. Experimental studies of short concrete reinforced steel fiber beams under bending
Resumo Este estudo apresenta os resultados do rompimento de dois grupos de vigas de concreto com fibras de aço. Cada grupo foi composto de 4 vigas com vão de 300 mm, 4 com vão de 500 mm e 4 com vão de 800 mm e seção de 15 cm x 15 cm. A variação dos grupos se deu pela quantidade de fibras (I com 40 kg/m³ e II com 60 kg/m³). Foram avaliados o comport
Rev. IBRACON Estrut. Mater.. Publicado em: 20/05/2019
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12. Bone callus formation is highly disrupted by dietary restriction in growing rats sustaining a femoral fracture
Abstract Purpose: To evaluate the effects of food restriction on fracture healing in growing rats. Methods: Sixty-eight male Wistar rats were assigned to two groups: (1) Control and (2) Dietary restriction. After weaning the dietary restricted animals were fed ad libitum for 42 days with 50% of the standard chow ingested by the control group. Subsequentl
Acta Cir. Bras.. Publicado em: 14/02/2019