Results 41 to 50 of about 2,607,929 (307)

Neurovascular Contacts in the Pathophysiology of Neuralgic Amyotrophy: An Observational Study

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Neuralgic amyotrophy (NA) is a prevalent, monophasic, multifocal immune‐mediated neuropathy. A distinctive characteristic of the disease is the occurrence of nerve or fascicle constrictions and torsions (NA‐associated focal nerve lesions, NAFL). The pathophysiology underlying this phenomenon remains to be fully elucidated.
Johannes Fabian Holle   +4 more
wiley   +1 more source

An Experimental Study of Torsional Properties of Polyvinylchloride

open access: yesKurdistan Journal of Applied Research, 2017
In this research, an experimental study has been performed to investigate the mechanical properties through torsion testing of polyvinylchloride (PVC) polymer specimens.
Sarkawt Rostam   +4 more
doaj   +1 more source

Topological state transfer in Kresling origami

open access: yesCommunications Materials, 2022
Topological mechanical metamaterials have been considered effective for energy manipulation via edge states, but manipulating these states remains challenging.
Yasuhiro Miyazawa   +6 more
doaj   +1 more source

An instrument for high-throughput measurements of fiber mechanical properties [PDF]

open access: yes, 2005
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2005.Includes bibliographical references (leaves 173-177).In this thesis, an instrument is designed and constructed for the purpose of measuring the mechanical ...
Kristofek, Grant William, 1980-
core  

One-relator groups with torsion are conjugacy separable

open access: yes, 2013
We prove that one-relator groups with torsion are hereditarily conjugacy separable. Our argument is based on a combination of recent results of Dani Wise and the first author.
Zalesskii, Pavel, Minasyan, Ashot
core   +1 more source

Gravity‐Dependent Modulation of Downbeat Nystagmus: Insights From Velocity‐Storage Dysfunction

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Downbeat nystagmus varies with head position, a phenomenon termed gravity‐dependent modulation. We aimed to clarify its mechanism using a velocity‐storage model. Methods In 10 patients with downbeat nystagmus due to cerebellar disorders, we recorded eye movements at different pitch‐ and roll‐axis head positions.
Ji‐Hyung Park   +5 more
wiley   +1 more source

Large massive 4d particle with torsion and conformal mechanics [PDF]

open access: yesPhysics Letters B, 2000
The consequences of coupling of the torsion (highest curvature) term to the Lagrangian of a massive spinless particle in four-dimensional space-time are studied. It is shown that the modified system remains spinless and possesses extended gauge invariance.
openaire   +3 more sources

Artificial Intelligence in Systemic Sclerosis: Clinical Applications, Challenges, and Future Directions

open access: yesArthritis Care &Research, EarlyView.
Systemic sclerosis (SSc) is a rare autoimmune disease defined by immune dysregulation, vasculopathy, and progressive fibrosis of the skin and internal organs. Despite advances in care, major complications such as interstitial lung disease (ILD) and myocardial involvement remain the leading causes of morbidity and mortality.
Cristiana Sieiro Santos   +2 more
wiley   +1 more source

Torsional Mechanics of DNA Are Regulated by Small-Molecule Intercalation

open access: yesThe Journal of Physical Chemistry B, 2010
Whether the bend and twist mechanics of DNA molecules are coupled is unclear. Here, we report the direct measurement of the resistive torque of single DNA molecules to study the effect of ethidium bromide (EtBr) intercalation and pulling force on DNA twist mechanics.
Celedon, Alfredo   +2 more
openaire   +5 more sources

The Mechanism of Transcription Stalling under Torsion [PDF]

open access: yesBiophysical Journal, 2015
During transcription, RNA polymerase (RNAP) translocates along DNA and introduces torsional stress, and excessive torque accumulation can lead to transcription stalling. We previously measured this stall torque for E. coli RNAP during transcription1. However the mechanism and regulation of RNAP stalling under torsion has remained elusive.
Tan, Chuang   +5 more
openaire   +1 more source

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