Results 31 to 40 of about 427,015 (306)

Analysis of Related Factors of Brittle Hip Fracture in Postmenopausal Women with Osteoporosis

Orthopaedic Surgery, 2020
Objective To investigate the effects of age, body mass index (BMI), bone mineral density (BMD), and levels of serum 25‐hydroxyvitamin D (25OHD) on hip fracture on the condition of the bone density of femoral neck having reached the threshold of ...
Hua‐feng Zhuang, Pei‐wen Wang, Yi‐zhong Li, Jin‐kuang Lin, Xue‐dong Yao, Hao Xu   +5 more
doaj   +1 more source

Higher fracture prevalence and smaller bone size in patients with hEDS/HSD-a prospective cohort study

, 2020
Increased fracture risk in patients with Ehlers-Danlos syndromes has been reported, but the reasons for it are incompletely understood. We aimed to investigate possible determinants of this increased risk and found that hEDS/HSD patients present with a ...
Banica, Thiberiu, Calders, Patrick, Coussens, Marie, De Wandele, Inge, Goemaere, Stefan, Lapauw, Bruno, Malfait, Fransiska, Rombaut, Lies, Verroken, Charlotte, Zmierczak, Hans-Georg   +9 more
core   +1 more source

Radiomic Modeling of Bone Density and Rib Fracture Risk After Stereotactic Body Radiation Therapy for Early-Stage Non-Small Cell Lung Cancer

Advances in Radiation Oncology, 2022
Purpose: Our purpose was to determine whether bone density and bone-derived radiomic metrics in combination with dosimetric variables could improve risk stratification of rib fractures after stereotactic body radiation therapy (SBRT) for early-stage non ...
Nicholas R. Rydzewski, MD, MPH, Poonam Yadav, PhD, Hima Bindu Musunuru, MD, FRCR, Kevin M. Condit, MA, David Francis, MD, Shuang G. Zhao, MD, MSE, Andrew M. Baschnagel, MD   +6 more
doaj   +1 more source

Characteristics of the Microfracture and Pore Structure of Middle- and High-Rank Coal and Their Implications for CBM Exploration and Development in Northern Guizhou

Energies
The microfracture and pore structure characteristics of coal reservoirs are crucial for coalbed methane (CBM) development. This study examines the evolution of pore and fracture structures at the microscopic level and their fractal characteristics ...
Haiying Ren, Zhijun Guo, Honggao Xie, Sijie Han, Xiaozhi Zhou, Lingyun Zhao, Yuanlong Wei, Wenci Qiu   +7 more
doaj   +1 more source

Study on the effects of fracture on permeability with pore-fracture network model

Energy Exploration & Exploitation, 2018
Reservoir quality and productivity of fractured gas reservoirs depend heavily on the degree of fracture development. The fracture evaluation of such reservoir media is the key to quantify reservoir characterization for the purposes such as well drilling ...
Chunyan Jiao, Yong Hu, Xuan Xu, Xiaobing Lu, Weijun Shen, Xinhai Hu   +5 more
doaj   +1 more source

An approximate model for cancellous bone screw fixation [PDF]

, 2013
This is the author's accepted manuscript. The final published article is available from the link below. Copyright @ 2013 Taylor & Francis.This paper presents a finite element (FE) model to identify parameters that affect the performance of an improved ...
A. Day, Andersson S, ANSYS, Asnis SE, Aspenberg P, Augat P, B. Hess, Berlemann U, Burval DJ, C. J. Brown, Chen LH, Choi K, Collinge C, Eriksson F, Flahiff CM, Foldager C, Frakenburg EP, Gausepohl T, Gibson LJ, Ikenaga M, Keaveny TM, Leung KS, Mader K, Moore DC, P. Procter, Procter P, R. A. Sinclair, Renner SM, Singer BR, Stadelmann VA, Thiele OC, World Health Organisation (WHO)   +31 more
core   +1 more source

Revealing the structure of land plant photosystem II: the journey from negative‐stain EM to cryo‐EM

FEBS Letters, EarlyView.
Advances in cryo‐EM have revealed the detailed structure of Photosystem II, a key protein complex driving photosynthesis. This review traces the journey from early low‐resolution images to high‐resolution models, highlighting how these discoveries deepen our understanding of light harvesting and energy conversion in plants.
Roman Kouřil
wiley   +1 more source

Non-parametric estimation of probability density distribution for disc-shaped fracture diameter in rock masses

Shuiwen dizhi gongcheng dizhi
Fracture diameter and its distribution are key parameters for constructing three-dimensional fracture network models, with significant implications for evaluating the quality and stability of engineering rock masses.
Wenya SHAO, Weiwen LIU, Xiaoming WANG
doaj   +1 more source

Analysis of the spatial variability on a fracture network based on an oriented semivariogram

地质科技通报, 2023
Using an oriented semivariogram in geostatistics, this paper studied the spatial variability of the fissure network of Lianhuashan fault and Wuzhishan anticline in Gejiu Gaosong Ore Field.
Yu Huang, Rongsen Yang, Xiaodong Han, Jianwei Fan, Chunzhong Ni   +4 more
doaj   +1 more source

High serum osteopontin levels are associated with prevalent fractures and worse lipid profile in post-menopausal women with type 2 diabetes [PDF]

, 2018
Purpose: Patients with type 2 diabetes (T2DM) have increased fracture risk. Osteopontin (OPN) is a protein involved in bone remodeling and inflammation.
Carnevale, V., Filardi, Tiziana, Lenzi, A., Massoud, R., Morano, S., Nieddu, L., Romagnoli, E., Russo, C., Tavaglione, F., Turinese, Irene   +9 more
core   +1 more source