Results 111 to 120 of about 1,285,604 (304)

Analysis of the results of different types of diaphyseal tibial fractures with intraosseous and of plate osteosynthesis

Travmatologiâ i Ortopediâ Rossii, 2013
Aim of this study - comparative assesment of treatment outcomes of different types of diaphyseal shin fractures in patients with bone and intraosteal lackable osteosynthesis. Material and methods.
V. V. Pisarev, A. V. Aleinikov, I. V. Vasin, Y. A. Oshurkov   +3 more
doaj   +1 more source

Strain‐Activated Mechanical Metamaterial With Programmable Dual‐Phase Stiffness and Enhanced Energy Absorption

Advanced Materials Technologies, EarlyView.
A strain‐activated mechanical metamaterial is developed to achieve programmable dual‐phase stiffness through an intrinsic geometric locking mechanism. Finite element modeling and parametric analysis identify the key design parameters governing activation strain, stiffness transition, and energy absorption.
Ramin Yousefi‐Nooraie, Romain Lemoine, Mario Guagliano, Sara Bagherifard   +3 more
wiley   +1 more source

Collision‐Resilient Winged Drones Enabled by Tensegrity Structures

Advanced Robotics Research, EarlyView.
Based on structures of birds such as the woodpeck, this article presents the collision‐resilient aerial robot, SWIFT. SWIFT leverages tensegrity structures in the fuselage and wings which allow it to undergo large deformations in a crash, without sustaining damage. Experiments show that SWIFT can reduce impact forces by 70% over conventional structures.
Omar Aloui, Raphael Zufferey, William Stewart, Mohammad Askari, Simon Jeger, Dario Floreano   +5 more
wiley   +1 more source

Inhibition of IGFBP4 in Granulosa Cells Improves Reproductive Performance and Maintains Fertility With Age via YAP Signaling

Advanced Science, EarlyView.
IGFBP4 is upregulated in granulosa cells of aged ovaries across monkeys, mice, and humans. It inhibits YAP signaling, thereby suppressing cell proliferation and contributing to follicular dysfunction. Deletion of Igfbp4 in granulosa cells enhances ovulatory output, improves hormone profiles, and reproductive performance in aged female mice, suggesting ...
Qianhui Hu, Ajun Geng, Ziyuan Li, Fanghao Guo, Jingqiang Wang, Xinyi Chen, Meiling Zhang, Yi Arial Zeng, Wen Li   +8 more
wiley   +1 more source

In Situ X‐Ray Tomography and Acoustic Emission Monitoring of Damage Evolution in C/C‐SiC Composites Fabricated by Liquid Silicon Infiltration

Advanced Science, EarlyView.
This study investigates how the internal structure of fiber‐reinforced ceramic composites affects their resistance to damage. By combining 3D X‐ray imaging with acoustic emission monitoring during mechanical testing, it reveals how silicon distribution influences crack formation.
Yang Chen, Renato S. M. Almeida, Stefan Flauder, Guillaume Couégnat, Kamen Tushtev, Jürgen Horvath, Peter Wriggers, Kurosch Rezwan   +7 more
wiley   +1 more source

Sustainable Fabrication of Tailored Bone Substitutes: From High‐Throughput Scaffold Manufacturing, Scaled‐Up HMSC Expansion to Dynamic Cultivation in a Perfusion Bioreactor

Advanced Science, EarlyView.
ABSTRACT The demand for off‐the‐shelf biocompatible bone substitutes has driven the development of numerous independent in vitro technologies to generate products resembling physiological tissues. Due to technical challenges and overly simplified cultivation approaches/niches, the end‐products are often uniformly shaped and inferior to native bone ...
Franziska Braun, Anna Paříková, Sandra Rother, Martin Kantor, Salman Muhammad Ilyas, Ricardo Bernhardt, Pavel Ndjawa Yomi, Jaromír Havlica, Revathi Appali, Benjamin Kruppke, Poh Soo Lee   +10 more
wiley   +1 more source

Prone position in balloon kyphoplasty leads to no secondary vertebral compression fractures in osteoporotic spine – a MRI study

GMS Interdisciplinary Plastic and Reconstructive Surgery DGPW, 2014
Purpose: Vertebral compression fractures are the most common fractures in the elderly. Long lasting pain and deformity is responsible for consecutive impairment with markedly reduced life quality, increased morbidity and mortality. The beneficial effects
Spalteholz, Matthias, Strasser, Evald, Hantel, Torsten, Gahr, Ralf Herbert   +3 more
doaj   +1 more source

Bone mass, size and previous fractures as predictors of prospective fractures in an osteoporotic referral population

, 2009
The influence of bone mass, bone size and previous low energy fractures upon prospective fractures has not been investigated in a referral osteoporotic population.
Nordström, Anna,, Eklund, Fredrik,, Björnstig, Ulf,, Nordström, Peter,   +3 more
core   +1 more source

Effect of calcitriol on bone turnover and osteocalcin in recent-onset type 1 diabetes [PDF]

, 2013
Contains fulltext : 125353.pdf (Publisher’s version ) (Open Access)BACKGROUND: Vitamin D supplementation in childhood improves the achievement of peak bone mass.
Crinò, A, Napoli N, Strollo R, Maurizi, Ar, Anguissola, Gb, Benevento, D, Rocky Strollo, Moretti, C, Paolo Pozzilli, Napoli, N, Maggi, D., CAVALLO, Maria Gisella, Carla Bizzarri, Portuesi, R, Cassone Faldetta, Mr, Cipponeri, E, Astorri, E, Manfrini, S, Schwartz, A., Guglielmi, C, Matteoli, Mc, Maddaloni, E., BUZZETTI, Raffaella, Pozzilli, P., Bizzarri, C., et al., Grp, IMDIAB, Spera, S, Pitocco, D, Ghirlanda, G, Di Stasio, E, Beretta Anguissola, G, Ernesto Maddaloni, Ann Schwartz, Maggi, D, Valente, L., Strollo, R, Cipolloni, L, BARCHETTA, ILARIA, Silvia Manfrini, Maddaloni, E, Lauria, A, Nicola Napoli, Bizzarri, C, Manfrini, S., Collaborators, IMDIAB Group, Pozzilli, P, Strollo, R., Capizzi, M, Daria Maggi, Dario Pitocco, Napoli, N., IMDIAB Group, Schwartz, A, Palermo, A, Fioriti, E, Cappa, M, Tuccinardi, D, Pitocco, D.   +57 more
core   +2 more sources

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

Advanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao, Yiming Ma, Baihao Shao, Molly M. Stevens   +3 more
wiley   +1 more source