Results 71 to 80 of about 420,611 (253)

Reducing the extent of facetectomy may decrease morbidity in failed back surgery syndrome

BMC Musculoskeletal Disorders, 2019
Background Percutaneous transforaminal endoscopic discectomy (PTED) is widely used for the treatment of lumbar disc herniation. Facetectomy in PTED is necessary for accessing the intraspinal region and for decompressing the exiting nerve roots in ...
Jingchi Li, Xiaoyu Zhang, Wenqiang Xu, Zhipeng Xi, Lin Xie   +4 more
doaj   +1 more source

Time History Gaussian Process Regression for Modeling the Dynamics of Ankle Exoskeleton User Comfort

Advanced Robotics Research, EarlyView.
Exoskeletons need to be comfortable, but the perception of comfort may change over time. This study investigated if short‐term time history directly influences comfort. No previous trials’ input features were predictive of comfort. Including the previous trial's comfort score marginally improved model accuracy compared to a model using only the current
Axl Maberry, Bo Cheng, Anne E. Martin
wiley   +1 more source

Screening and Evaluation of Biomechanical Properties and Morphological Characteristics of Peduncles in Foxtail Millet

Agriculture
Mechanized harvesting is a crucial step in the agricultural production of foxtail millet (Setaria italica), as its peduncles are susceptible to bending and breaking during the harvesting process, leading to yield losses and deterioration in grain quality.
Lili Zhang, Guofang Xing, Zhenyu Liu, Yanqing Zhang, Hongbo Li, Yuanmeng Wang, Jiaxin Lu, Nan An, Zhihong Zhao, Zeyu Wang, Yuanhuai Han, Qingliang Cui   +11 more
doaj   +1 more source

XeraBorg: Neural Control of Tail‐Flick Escape for Backward Propulsion in Cyborg Crayfish

Advanced Robotics Research, EarlyView.
This work presents the first controlled tail‐flick propulsion method for the cyborg Cherax quadricarinatus. Comprehensive experiments establish a foundational framework for using the crayfish's natural escape mechanism as a locomotion strategy, expanding its potential as an underwater and amphibious mobile robot.
H. Nhan Le, Oscar J. Davis, Lachlan Fitzgerald, Robbie Wilson, Christofer Clemente, P. Ross McAree, T. Nho Do, T. Thang Vo‐Doan   +7 more
wiley   +1 more source

BAP31 Drives Cartilage Calcification through Disruption of Autophagosome–Lysosome Fusion in Osteoarthritis

Advanced Science, EarlyView.
Mechanical stress activates BAP31 in chondrocytes. BAP31 competes with ATG14 for binding to STX17, disrupting the STX17–ATG14 complex required for autophagosome–lysosome fusion. The resultant autophagic flux blockade drives the generation of autophagy‐derived exosomes, which mediate pathological cartilage calcification in OA. Chondrocyte‐targeted BAP31
Zhi‐hua Xu, Ruo‐xin Wang, Feng He, Qian Liu, Fu‐yin Li, Min Hui, Yu‐qian Shi, Yu Jiang, Qing‐hua Li, Jun‐wen Jing, Shi‐bin Yu, Li‐tian Ma, Qian‐nan Niu, Mian Zhang   +13 more
wiley   +1 more source

Impact of screw tip design on screw anchorage: mechanical testing and numerical simulation

Journal of Orthopaedic Surgery and Research
Background Screw loosening is a commonly reported issue following spinal screw fixation and can lead to various complications. The initial cause of screw loosening is biomechanical deterioration.
Shiming Xie, Liqiang Cui, Jinhui Liu, Peidong Qing, Jingchi Li   +4 more
doaj   +1 more source

Anterior Endocrowns as An Alternative to Core Crown restorations: A Systematic Review

International Dental Journal
Restoring extensively damaged endodontically treated teeth presents a challenging task due to the state of biomechanical deterioration affecting long-term prognosis.
Hisham A. Mously, Ghada H. Naguib, Ahmed O. Abougazia, Afaf A. Almabadi, Osama A. Qutub, Mohamed T. Hamed   +5 more
doaj   +1 more source

A Review on Catalytic Nanostructured Electrodes for Wearable and Implantable Abiotic Glucose Fuel Cells

Advanced Science, EarlyView.
This review identifies current and future directions in abiotic nanostructured catalysts to develop reliable and sustainable glucose fuel cells to power the next generation of bioelectronic devices. ABSTRACT The global rise in incidence of chronic diseases has led to the demand for innovative solutions that help patients manage their conditions with ...
Asghar Niyazi, Hannah S. Leese, Benjamin Metcalfe, Mirella Di Lorenzo   +3 more
wiley   +1 more source

The corneoscleral shell of the eye: potentials of assessing biomechanical parameters in normal and pathological conditions

Oftalʹmologiâ, 2016
The paper reviews modern methods of evaluating the biomechanical properties of the corneoscleral shell of the eye that can be used both in the studies of the pathogenesis of various ophthalmic pathologies and in clinical practice.
E. N. Iomdina, S. Yu. Petrov, A. A. Аntonov, I. A. Novikov, I. A. Pahomova, A. Y. Archakov   +5 more
doaj   +1 more source

Wavy‐Interlocked Stretchable Triboelectric Nanogenerators Enhanced by Liquid Metal Microflowers for Self‐Powered Wearable Motion Monitoring

Advanced Science, EarlyView.
Schematic showing a stretchable triboelectric nanogenerator based on interlocked wavy architectures that uses EGaIn microflower‐embedded PVDF‐TrFE and Nylon‐6 nanofiber membranes. The multi‐petaled, electron‐rich EGaIn microflowers enhance interfacial polarization and capacitance, while the interlocked wavy architecture enlarges the effective contact ...
Qianqian Xu, Huimin Li, Hanmin Zeng, Yahui Meng, Yimeng He, Xinke Hu, Senfeng Zhao, Jianxun Zhang, Peiqiong Zhou, Kechao Zhou, Dou Zhang, Chris Bowen, Yan Zhang   +12 more
wiley   +1 more source