Results 31 to 40 of about 114,321,802 (286)
BMC Surgery, 2023 Backgrounds This study aimed to compare whether Calcium phosphate cement (CPC) promotes the stability of osteoporotic lumbar pedicle screw by enhancer-injecters with different number of holes. Methods Through a self-designed bone cement injection device,
Suochao Fu +8 more
doaj +1 more source
Screw Dynamics of a Multibody System by a Schoenflies Manipulator
Applied Sciences, 2023 This paper presents a screw dynamics method for multi-rigid-body systems. It establishes the relationship between velocity screw (twist) and force screw (wrench) in the theorem of momentum screw.
Jing-Shan Zhao +3 more
doaj +1 more source
BMC Musculoskeletal Disorders, 2021 Background Providing a stable osteosynthesis in fragility fractures of the pelvis can be challenging. Cement augmentation increases screw fixation in osteoporotic bone.
Juliana Hack +6 more
doaj +1 more source
Image forces on screw dislocations in multilayer structures [PDF]
Scripta Metallurgica, 1987 Peer Reviewed ; http://deepblue.lib.umich.edu/bitstream/2027.42/26533/1/0000072 ...
Kamat, S. V. +2 more
openaire +2 more sources
Single‐molecule DNA flow‐stretch assays for high‐throughput DNA–protein interaction studies
FEBS Open Bio, EarlyView.We describe an optimised single‐molecule DNA flow‐stretch assay that visualises DNA–protein interactions in real time. Linear DNA fragments are tethered to a surface and stretched by buffer flow for fluorescence imaging. Using λ and φX174 DNA, this protocol enhances reproducibility and accessibility, providing a versatile approach for studying diverse ...
Ayush Kumar Ganguli +8 more
wiley +1 more source
A novel pedicle screw design to maximize screw-bone interface strength using finite element analysis and design of experiment techniques [PDF]
Asian Spine JournalStudy Design Basic study. Purpose This study aimed to utilize finite element (FE) analysis and design of experiment (DoE) techniques to propose and optimize a novel pedicle screw design and compare its pull-out force with that of a control device ...
Arvind Kumar Prajapati +4 more
doaj +1 more source
Molecular characterization of covRS mutations in M1UK Streptococcus pyogenes
FEBS Open Bio, EarlyView.Group A Streptococcus (GAS) acquires covRS mutations driving a hypervirulent bacterial state, frequently associated with invasive disease‐like necrotizing fasciitis. We demonstrate that the newly emerged M1UK GAS lineage can also acquire these mutations.
Jarrad Pritchard +12 more
wiley +1 more source
A New Design of the Tooth Profile for Single Screw Compressors [PDF]
, 2012 The wear of star wheel teeth is an importance issue in the single screw compressor. In order to enhance the wearresistance of star wheel teeth, some new profiles of the meshing pair were proposed to replace the currently used straight line envelope ...
Feng, Quanke +3 more
core +1 more source
Limiting interpedicular screw displacement increases shear forces in screws: A finite element study
Orthopaedics & Traumatology: Surgery & Research, 2017 Screw loosening has been reported for non-fusion devices. Forces on pedicle screws could be related to kinematic parameters as the interpedicular displacement (ID), which consists of the displacement between superior and inferior screw heads from full extension to full flexion.To investigate the relationship between ID and screw loosening for different
L.V.P.C. Lima +3 more
openaire +3 more sources
Boundary‐Dependent Sleep–Wake Dysregulation in Idiopathic Hypersomnia
Annals of Clinical and Translational Neurology, EarlyView.ABSTRACT Objective Idiopathic hypersomnia (IH) presents with excessive daytime sleepiness (EDS) despite apparently preserved nocturnal sleep, challenging traditional models of hypersomnolence based on sleep loss or fragmentation. We aimed to test the hypothesis that EDS in IH reflects excessive stabilization of the sleep state, consistent with ...
Samantha Mombelli +13 more
wiley +1 more source