Results 71 to 80 of about 1,587,723 (333)

Endothelial GPR68 Is Essential for Arteriogenesis and Represents a Therapeutic Target in a Model of Peripheral Artery Disease

open access: yesAdvanced Science, EarlyView.
Endothelial GPR68 is identified as a critical regulator of collateral artery growth in peripheral artery disease. Genetic and pharmacological evidence demonstrates that GPR68 integrates hemodynamic cues to drive monocyte recruitment and inflammatory remodeling, thereby promoting collateral arteriogenesis and tissue perfusion after ischemia ...
Yiyan Song   +12 more
wiley   +1 more source

Negative refraction with tunable absorption in an active dense gas of atoms

open access: yes, 2012
Applications of negative index materials (NIM) presently are severely limited by absorption. Next to improvements of metamaterial designs, it has been suggested that dense gases of atoms could form a NIM with negligible losses.
Evers, J.   +3 more
core   +1 more source

TrxR2 Lactylation Facilitates Mitochondrial Protection and Endothelial Ferroptosis Resistance in Diabetic Cardiomyopathy

open access: yesAdvanced Science, EarlyView.
TrxR2 deletion in diabetic mice suppresses TUFM‐AMPK‐FUNDC1‐dependent mitophagy in endothelial cells, resulting in SCP2 upregulation and mitochondrial translocation of ACSL4. Mitochondrial ACSL4 promotes mitochondrial eicosanoid biosynthesis and ferroptosis, thereby aggravating cardiac microvascular injury and diabetic cardiomyopathy.
Su Li   +16 more
wiley   +1 more source

The diagnostic value of the twinkle sign in color Doppler imaging of urinary stones

open access: yesThe Egyptian Journal of Radiology and Nuclear Medicine, 2014
Objective: To determine the diagnostic value of the color Doppler twinkle sign in the diagnosis of urinary stones. Methods: The study examined 100 urinary stones in 71 patients who presented with urinary symptoms and were suspected to have urinary stones.
Sameh Khodair Ahmad   +1 more
doaj   +1 more source

Two-beam nonlinear Kerr effect to stabilize laser frequency with sub-Doppler resolution

open access: yes, 2012
Avoiding laser frequency drifts is a key issue in many atomic physics experiments. Several techniques have been developed to lock the laser frequency using sub-Doppler dispersive atomic lineshapes as error signals in a feedback loop.
Ackemann   +9 more
core   +1 more source

Photonuclear Population of 229m,gTh in Th‐Doped Crystals Toward Nuclear Clock Development

open access: yesAdvanced Science, EarlyView.
This study demonstrates a novel photonuclear approach for producing the nuclear clock isomer 229mTh in thorium‐doped crystals, overcoming current supply limitations. Through cross‐section calculations and Monte Carlo simulations, we identify optimal crystal materials and irradiation conditions, achieving high signal‐to‐noise ratios.
Hao‐Yang Lan   +9 more
wiley   +1 more source

Color Doppler Ultrasonography in Mapping Oral Squamous Cell Carcinoma

open access: yesMiddle East Journal of Cancer, 2015
Background: Although Color Doppler Ultrasonography (CDUS) is useful in the diagnosis of various diseases of the head and neck, flow signals in oral malignant masses are less studied; hence the present study assesses the usefulness of Color Doppler ...
Rahul Gandhi   +4 more
doaj  

Ultrasound and Doppler examination capabilities in adult portal hypertension type definition

open access: yesPatologìâ, 2015
Early portal hypertension type diagnostics is an ultimate factor concerning kind and tactics of treatment. Aim. To objectify ultrasound examination capabilities, portal hemodynamics were studied in 97 patients using impulse and color doppler ...
N. V. Tumanskaya   +4 more
doaj   +1 more source

Shape: A 3D Modeling Tool for Astrophysics

open access: yes, 2010
We present a flexible interactive 3D morpho-kinematical modeling application for astrophysics. Compared to other systems, our application reduces the restrictions on the physical assumptions, data type and amount that is required for a reconstruction of ...
Koning, Nicholas   +4 more
core   +2 more sources

Robot‐Assisted Doppler Optical Coherence Tomography for Intraoperative Evaluation of Microvascular Anastomoses

open access: yesAdvanced Intelligent Systems, EarlyView.
This work presents a robot‐assisted Doppler optical coherence tomography system for autonomous, wide‐field intraoperative assessment of microvascular anastomoses. Machine‐vision–guided probe positioning and adaptive scan planning enable three‐dimensional structural and hemodynamic imaging over extended vessel segments.
Xiaochen Li   +10 more
wiley   +1 more source

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