Results 71 to 80 of about 583,669 (295)

Quantitative evaluation of rock brittleness and fracability based on elastic-wave velocity variation around borehole

open access: yesPetroleum Exploration and Development, 2016
Brittleness and fracability are two important rock properties in hydraulic fracturing of unconventional reservoirs. Based on the variation of compressional and shear velocity around borehole using acoustic measurement, an effective technique is developed
Xiaoming TANG   +4 more
doaj   +1 more source

Hypoplastic and Accessory Radial Arteries: A Case Report [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2018
Arterial variations in the upper extremity occur in a high prevalence. The radial artery is a terminal branch of the brachial artery in the cubital fossa. This artery is used in some treatment interventions and it’s variation is important for clinicians.
Heidar Toolee, Yousef Mohamadi
doaj   +1 more source

A Depolarizing Leak in Sodium Bicarbonate Cotransporter NBCe1 Causes Brain Edema

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives SLC4A4 encodes electrogenic sodium bicarbonate cotransporter NBCe1, prominently expressed in kidney and brain. Recessive loss‐of‐function variants in SLC4A4 cause proximal renal tubular acidosis, no brain edema. In the brain, NBCe1 is expressed by astrocytes, where it regulates pH and mediates astrocyte volume changes.
Quinty Bisseling   +16 more
wiley   +1 more source

Four patients with a clinically significant radial artery anomaly

open access: yesJournal of Vascular Surgery Cases and Innovative Techniques, 2019
The superficial radial artery is an anatomic variant in which the radial artery passes superficial to the tendons of the anatomic snuffbox. Cadaver studies have shown its incidence to be 0.5% to 1%.
Nasim Babazadeh, MD   +5 more
doaj   +1 more source

Probing collectivity in ultra-relativistic heavy ion collision by leptons and photons

open access: yes, 2011
It has been shown that the evolution of collectivity in ultra-relativistic heavy ion collision is manifested in the variation of various HBT radii with invariant mass ($M$) extracted from the correlation functions of two lepton pairs.
Abeleb   +36 more
core   +1 more source

Assessment of Skin in Patients With Systemic Sclerosis Using High‐Frequency Ultrasound and Shear Wave Elastography: A Comparative Study With Histology, Molecular, and Clinical Parameters

open access: yesArthritis Care &Research, EarlyView.
Objective Ultrasound (US) has been proposed as a potential tool for assessing skin fibrosis in systemic sclerosis (SSc). However, a large‐scale comparison of US‐based assessment with histologic markers of skin fibrosis has not been reported. We evaluated US‐based skin assessments for their face validity (differentiation between involved SSc and healthy
Ruhani Desai   +12 more
wiley   +1 more source

Qualitative and Quantitative Anatomical Characteristics and Radial Variation of Major Cell Components in Paulownia tomentosa Wood Grown in Korea

open access: yesBioResources
Qualitative and quantitative anatomical characteristics and radial variations of the major cell components in Paulownia tomentosa wood were examined using optical microscopy and X-ray diffraction to aid in wood identification and as quality indices.
Jae Ik Jo   +3 more
doaj   +2 more sources

Superficial radial artery- a rare variation and its clinical significance

open access: yesNational Journal of Clinical Anatomy, 2014
During routine dissection of upper limb, a variation in the origin of radial artery was observed in a female cadaver of about 60 years. The radial artery is usually a smaller terminal branch of the brachial artery in the forearm. On the right side of the
P K Sankaran   +3 more
doaj   +1 more source

Clinical Practice Guideline for Evaluation and Management of Peripheral Nervous System Manifestations in Sjögren's Disease

open access: yesArthritis Care &Research, EarlyView.
Objective Sjögren's disease is an autoimmune disorder that can impact multiple organ systems, including the peripheral nervous system (PNS). PNS manifestations, which can exist concurrently, include mononeuropathies, polyneuropathies, and autonomic nervous system neuropathies.
Anahita Deboo   +88 more
wiley   +1 more source

Evidence for a sharp structure variation inside a red-giant star

open access: yes, 2010
The availability of precisely determined frequencies of radial and non-radial oscillation modes in red giants is finally paving the way for detailed studies of the internal structure of these stars.
A. Baglin   +46 more
core   +3 more sources

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