Results 61 to 70 of about 105,293 (255)

Focal Spot, Spring 1988 [PDF]

open access: yes, 1988
https://digitalcommons.wustl.edu/focal_spot_archives/1048/thumbnail ...

core   +1 more source

Time-series Doppler images and surface differential rotation of the effectively-single rapidly-rotating K-giant KU Pegasi [PDF]

open access: yes, 2016
According to most stellar dynamo theories, differential rotation (DR) plays a crucial role for the generation of toroidal magnetic fields. Numerical models predict surface differential rotation to be anti-solar for rapidly-rotating giant stars, i.e ...
Carroll, T. A.   +8 more
core   +2 more sources

Farnesyltransferase Deficiency in Cardiomyocytes Initiates Senescence and Contributes to Cardiac Fibrosis

open access: yesAdvanced Science, EarlyView.
Lipid overload suppresses SREBF2‐mediated FNTB expression, leading to defective Lamin A maturation and nuclear envelope instability. This nuclear catastrophe triggers a pro‐fibrotic senescence program in cardiomyocytes. Notably, restoring nuclear integrity via AAV9‐based gene therapy effectively attenuates cardiac remodeling, identifying the ...
Yuxiao Chen   +16 more
wiley   +1 more source

Role of ultrasound, color doppler, elastography and micropure imaging in differentiation between benign and malignant thyroid nodules

open access: yesThe Egyptian Journal of Radiology and Nuclear Medicine, 2017
Purpose: To evaluate the role of ultrasound elastography, Doppler and micropure imaging in the assessment of thyroid nodules, using the pathological analysis as the reference standard. Patients and methods: A prospective study was carried on all patients
Ahmed Ebraheem Ebeed   +3 more
doaj   +1 more source

Efficacy Evaluation on the Color Doppler Ultrasound, Multislice Spiral CT Combined with Serum Markers in Diagnosis of Primary Hepatic Carcinoma

open access: yesIranian Journal of Public Health, 2021
Background: The efficacy of color Doppler ultrasound, multislice spiral CT combined with serum alpha-fetoprotein (AFP) and alpha-fetoprotein heterogeneity (AFP-L3) in the diagnosis of primary hepatic carcinoma was evaluated.
Xiaolan Zhao   +3 more
doaj   +1 more source

Experimental investigation of inter-element isolation in a medical array transducer at various manufacturing stages [PDF]

open access: yes, 2016
This work presents the experimental investigation of vibration maps of a linear array transducer with 192 piezoelements by means of a laser Doppler vibrometer at various manufacturing finishing steps in air and in water.
Bini, Fabiano   +2 more
core   +1 more source

Bioabsorbable Endovascular Adhesive Tape (BEAT) for Improving Vascular Regeneration

open access: yesAdvanced Science, EarlyView.
A bioabsorbable endovascular adhesive tape (BEAT) platform based on a hierarchical polyelectrolyte complex is developed to enhance drug delivery in the DCB system. The coating enables rapid transfer to the vessel, provides short‐term mechanical support, and promotes both immediate transfer and long‐term retention of drugs at the lesion site.
Jiarong Wang   +13 more
wiley   +1 more source

Point-of-care ultrasound and Doppler ultrasound evaluation of vascular injuries in penetrating and blunt trauma

open access: yesCritical Ultrasound Journal, 2017
Background The aim of this study is to describe point-of-care ultrasound and Color flow Duplex Doppler characteristics of penetrating and blunt trauma-related vascular injuries of the limbs and neck.
Miguel Angel Montorfano   +5 more
doaj   +1 more source

A Soft Robotic Model for Simulating Heart Valve Disease and Cardiac Interventions

open access: yesAdvanced Science, EarlyView.
This paper introduces a fully synthetic fabrication methodology for a soft robotic, in‐vitro model of the left‐heart, complete with a functioning mitral valve apparatus. With a view towards patient‐specific modeling, we demonstrate physiological flow and pressure waveforms, tunable mitral valve function with clinical imaging compatibility, and its use ...
James Davies   +14 more
wiley   +1 more source

Assessment of limited cardiac ultrasound to screen for mitral regurgitation

open access: yesEcho Research and Practice
Background Mitral regurgitation (MR) is under-diagnosed and under-treated. Point-of-care ultrasound devices now include color Doppler technologies that can enhance the physical exam.
Divya Velury   +8 more
doaj   +1 more source

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