Results 61 to 70 of about 1,678,416 (296)

Micro/Nanoscale Acoustic Manipulation: From Particle Control to Autonomous Microswimmers

open access: yesAdvanced Science, EarlyView.
This conceptual framework illustrates acoustic technology as a multifunctional platform enabling passive particle manipulation across scales and autonomous propulsion of microswimmers. ABSTRACT Acoustic manipulation and propulsion technologies have emerged as powerful platforms for micro/nanoscale control, enabled by their non‐contact operation, label ...
Jiahui Chu   +4 more
wiley   +1 more source

Advanced Doppler Ultrasound Insights: A Multicenter Prospective Study on Healthy Skin

open access: yesDiagnostics
Background: There have been multiple studies on the use of Doppler ultrasound to define skin inflammation, but the visible vessels of healthy skin have yet to be described. Objective: This study aimed to evaluate the visible vessels of healthy skin using
Priscila Giavedoni   +20 more
doaj   +1 more source

Pattern recognition of pelvic masses by gray-scale ultrasound imaging: the contribution of Doppler ultrasound

open access: yes, 1999
OBJECTIVE: To determine the extent to which Doppler ultrasound examination contributes to a correct specific diagnosis of a pelvic mass when the preliminary diagnosis is based on subjective evaluation of the gray-scale ultrasound image (pattern ...
Valentin, Lil,, Lund University.
core   +1 more source

Acousto-optic frequency switching for single-camera planar Doppler velocimetry [PDF]

open access: yes, 2001
A single-camera Planar Doppler velocimetry system has been demonstrated, in which illumination beams at two closely-spaced optical frequencies are derived from a single Argon-ion laser.
Nobes, David S.   +5 more
core   +1 more source

An Extracellular Pore‑Targeting Peptide Defines a Designable Allosteric Site in TRPV2

open access: yesAdvanced Science, EarlyView.
Structure‐guided peptide engineering yields Depiv2, a highly potent and subtype‐selective TRPV2 inhibitor that binds to the extracellular pore and remodels it into a closed, non‐conductive state. Depiv2 suppresses pathological cardiac hypertrophy, establishing the TRPV2 outer pore as a designable interface for selective peptide modulation.
Aiqin Zhu   +7 more
wiley   +1 more source

Assessment of vascularity with color Doppler ultrasound in gynecomastia

open access: yesDiagnostic and Interventional Radiology, 2009
The aim of this study was to analyze the presence and type of vascularity with color Doppler ultrasound (CDUS) in gynecomastia, to describe gray-scale ultrasound (US) and CDUS features in different stages of gynecomastia, and to compare these findings with the characteristic US appearances of Tanner stages.A total of 108 breasts of 54 males aged 11-27 ...
Selma Uysal, Ramadan   +4 more
openaire   +2 more sources

High‐Density Type I Collagen Promotes IFN‐γ+ CD8+ T Cell Exhaustion via SAT1‐ASS1‐Mediated Glutamine Accumulation and Ferroptosis in Triple‐Negative Breast Cancer

open access: yesAdvanced Science, EarlyView.
High‐density type I collagen promotes glutamine (Gln) accumulation–related ferroptosis of TNBC cells via the spermidine/spermine N1‐acetyltransferase 1 (SAT1)‐ argininosuccinate synthase (ASS1) signaling pathway, thus depriving immune cells of Gln supply and inducing IFN‐γ+ CD8+ T cell exhaustion in the TME.
Jinyan Wang   +11 more
wiley   +1 more source

Ecografia Doppler a côres. Aplicações Clínicas.

open access: yesActa Médica Portuguesa, 1996
The enormous success of Ultrasound is derived from its good spatial resolution and diagnostic accuracy. The most recent and most important application of Ultrasound is Color Doppler.
L Castelo, M Reis, R Aguiar
doaj   +1 more source

Impact of Rapid Thermal Annealing on the Structural and Piezoelectric Properties of AlN Thin Films

open access: yesAdvanced Electronic Materials, EarlyView.
Aluminum nitride (AlN) is a biocompatible piezoelectric material suitable for energy harvesting in MEMS resonators. Through rapid thermal annealing, a threshold for CMOS‐compatible processes is established. AlN improved its crystallinity and enhanced the piezoelectric coefficient by ∼160%. Devices show an improvement in the electromechanical properties
Laura Mazón‐Maldonado   +7 more
wiley   +1 more source

Comparison of correct diagnosis rate by two-dimensional ultrasound, color Doppler ultrasound and spectral Doppler.

open access: yes, 2015
* p ...
Xinfang Wang (747604)   +10 more
core   +1 more source

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