Results 41 to 50 of about 487,525 (312)

Field-induced decay of quantum vacuum: visualizing pair production in a classical photonic system [PDF]

open access: yesPhys. Rev. A 81, 022118 1-9 (2010), 2010
The phenomenon of vacuum decay, i.e. electron-positron pair production due to the instability of the quantum electrodynamics vacuum in an external field, is a remarkable prediction of Dirac theory whose experimental observation is still lacking.
arxiv   +1 more source

Phonon background versus analogue Hawking radiation in Bose-Einstein condensates [PDF]

open access: yesPhys. Rev. A 78 (2008) 021601(R), 2008
We determine the feasibility of detecting analogue Hawking radiation in a Bose-Einstein condensate in the presence of atom loss induced heating. We find that phonons created by three-body losses overshadow those due to analogue Hawking radiation. To overcome this problem, three-body losses may have to be suppressed, for example as proposed by Search et
arxiv   +1 more source

The Effect of Metoclopramide Addition to Lidocaine on Pain of Patients with Grades II and III Post-Episiotomy Repair [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2017
Introduction: Episiotomy is the most common procedure used for dilatation of the vaginal opening for giving birth. Although episiotomy is associated with benefits for the mother, it may lead to short term and long term disabilities, including ...
Sheida Shabanian   +4 more
doaj   +1 more source

Perioperative anxiolysis and analgesic effect after premedication with melatonin and pregabalin in total hip arthroplasty under spinal anaesthesia: A prospective comparative trial

open access: yesAdvanced Biomedical Research, 2023
Background: Preoperative anxiety plays a critical role in post-operative pain response and other outcomes. Melatonin is a naturally secreted hormone which has anxiolytic, sedative, and analgesic properties.
Akash Mishra   +5 more
doaj   +1 more source

Comparison of visual analogue scale (VAS) and the Nasal Obstruction Symptom Evaluation (NOSE) score in evaluation of post septoplasty patients [PDF]

open access: goldWorld J Otorhinolaryngol Head Neck Surg, 2020
Radhika Hiren Shukla   +2 more
openalex   +2 more sources

The carboxylate “gripper” of the substrate is critical for C‐4 stereo‐inversion by UDP‐glucuronic acid 4‐epimerase

open access: yesFEBS Letters, EarlyView.
UDP‐glucuronic acid 4‐epimerase (UGAepi) catalyzes NAD+‐dependent interconversion of UDP‐glucuronic acid (UDP‐GlcA) and UDP‐galacturonic acid (UDP‐GalA) via C4‐oxidation, 4‐keto‐intermediate rotation, and C4‐reduction. Here, Borg et al. examined the role of the substrate's carboxylate group in the enzymic mechanism by analyzing NADH‐dependent reduction
Annika J. E. Borg   +2 more
wiley   +1 more source

Validity and Responsiveness of the Visual Vertigo Analogue Scale

open access: yesJournal of Neurologic Physical Therapy, 2019
Background and Purpose: People with visual vertigo have dizziness provoked by visual stimulation. We have developed a Visual Vertigo Analogue Scale (VVAS) to evaluate their symptoms and response to rehabilitation. Our goal was to validate the VVAS against the Situation Characteristics Questionnaire (SITQ) score and determine ...
Gevorg Chilingarian   +2 more
openaire   +3 more sources

B cell mechanobiology in health and disease: emerging techniques and insights into therapeutic responses

open access: yesFEBS Letters, EarlyView.
B cells sense external mechanical forces and convert them into biochemical signals through mechanotransduction. Understanding how malignant B cells respond to physical stimuli represents a groundbreaking area of research. This review examines the key mechano‐related molecules and pathways in B lymphocytes, highlights the most relevant techniques to ...
Marta Sampietro   +2 more
wiley   +1 more source

Evaluation of the Short- and Long-Term Effectiveness of Pulsed Radiofrequency and Conventional Radiofrequency Performed for Medial Branch Block in Patients with Lumbar Facet Joint Pain

open access: yesPain Research and Management, 2018
Background. Diagnosis of lumbar facet joint disease is the sum of the combinations consisting of history, physical activity, and diagnostic imaging frequently including computed tomography and magnetic resonance imaging scans.
Abdurrahman Çetin, Abdulkadir Yektaş
doaj   +1 more source

Iron‐dependent lysosomal LDL oxidation induces the expression of scavenger receptor A in human THP‐1 monocytes

open access: yesFEBS Open Bio, EarlyView.
In human monocytic cells THP‐1, a limited uptake of native—not oxidized—LDL/VLDL induced expression of scavenger receptor A and cellular adhesion. Induction was inhibited by lysosomotropic (WR‐1065) and lipophilic (BHT) antioxidants and by siRNAs against ferritinophagy.
Martina Čierna   +4 more
wiley   +1 more source

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