Results 81 to 90 of about 319,669 (345)

What Is the Role of Giant Endosomal Sorting Complexes Required for Transport (ESCRT) Structures in T Cell Activation?

open access: yesAdvanced Biology, EarlyView.
The article explores the discovery of unusually large, ring‐shaped ESCRT protein structures formed by immune and stromal cells. It investigates their formation, composition, and potential roles in immune synapse formation. The findings challenge assumptions about their function in immunological synapses, suggesting an exclusive role in maintaining ...
Anthi Psoma   +3 more
wiley   +1 more source

Uncoupling of Microvascular Blood Flow and Capillary Density in Vascular Cognitive Impairment

open access: yesFrontiers in Neurology, 2019
Cerebral small vessel disease (cSVD) plays an important role in dementia and is a major cause for vascular cognitive impairment (VCI). Recent studies hypothesized that capillary dysfunction including reduction of capillary patency, rather than a flow ...
Chenxing Eleana Zhang   +7 more
doaj   +1 more source

Composite Electrospun Fibers Containing Optimized B‐ and Cu‐Doped Bioactive Glass Sol‐Gel Particles for Potential Soft Tissue Engineering Applications

open access: yesAdvanced Engineering Materials, EarlyView.
This article describes the preparation and characterization of poly(ε‐caprolactone) electrospun composite fibers incorporating sol‐gel‐derived bioactive glass particles doped with B and Cu. Scanning electron microscopy, energy‐dispersive X‐ray spectroscopy, Fourier‐transform infrared spectroscopy, contact angle, acellular bioactivity, mechanical and ...
Elisa Piatti   +5 more
wiley   +1 more source

Absolute blood flow velocity measurement using microsphere tracking in optical coherence tomography

open access: yesJournal of Innovative Optical Health Sciences
Visualizing blood flow velocity distribution is essential for comprehending the pathogenesis of various diseases and facilitating early diagnosis and treatment.
Huanhuan Yu   +4 more
doaj   +1 more source

Flow characteristics of the proximal pulmonary arteries and vena cava in patients with chronic thromboembolic pulmonary hypertension: correlation between 3.0 T phase-contrast MRI and right heart catheterization

open access: yesDiagnostic and Interventional Radiology, 2014
PURPOSEWe aimed to determine the correlation between flow characteristics of the proximal pulmonary arteries and vena cava obtained by 3.0 T phase-contrast magnetic resonance imaging (MRI) and hemodynamic characteristics by right heart catheterization in
Xiaojuan Guo   +7 more
doaj   +1 more source

Development and Preliminary In Vivo Study of 3D‐Printed Bioactive Glass Scaffolds with Trabecular Architecture

open access: yesAdvanced Engineering Materials, EarlyView.
This study reports the fabrication of trabecular bioactive glass scaffolds (composition “1d”: 46.1SiO2‐28.7CaO‐8.8MgO‐6.2P2O5‐5.7CaF2‐4.5Na2O wt%) through vat photopolymerization and the relevant results from mechanical testing and in vivo implantation procedures in rabbit femora, showing great promise for bone tissue engineering applications.
Dilshat Tulyaganov   +8 more
wiley   +1 more source

Effects of bee venom acupuncture on heart rate variability, pulse wave, and cerebral blood flow for types of Sasang Constitution

open access: yesJournal of Pharmacopuncture, 2009
1. Objectives: To evaluate effects of bee venom acupuncture on cardiovascular system and differences according to each constitution. 2. Methods: Heart rate variability, pulse wave and the velocity of cerebral blood flow were measured before bee venom ...
Lee Sang-min   +4 more
doaj   +1 more source

Functional Ultrasound Speckle Decorrelation‐Based Velocimetry of the Brain

open access: yesAdvanced Science, 2020
A high‐speed, contrast‐free, quantitative ultrasound velocimetry (vUS) for blood flow velocity imaging throughout the rodent brain is developed based on the normalized first‐order temporal autocorrelation function of the ultrasound field signal.
Jianbo Tang   +7 more
doaj   +1 more source

Mathematical Analysis of Carreau Fluid model for Blood Flow in Tapered Constricted Arteries [PDF]

open access: yes, 2016
The pulsatile flow of blood through a tapered constricted narrow artery is investigated in this study, treating the blood as Carreau fluid model. The constriction in the artery is due to the formation of asymmetric stenosis in the lumen of the artery ...
Lee, U.   +3 more
core  

Blood Flow Velocity in a Patient with Takayasu's Arteritis

open access: yesJapanese Heart Journal, 1972
Blood flow velocity was recorded by using Doppler transcutaneous flowmeter and Doppler catheter flowmeter in an 18-year-old woman with Takayasu's arteritis. Although no right radial artery pulse was felt by palpation, significant decrease and slow rise of the peak blood flow velocity, and inconspicuous dicrotic notch was observed and recorded from the ...
S, Matsuo, A, Benchimol
openaire   +3 more sources

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