Results 161 to 170 of about 2,021,559 (378)

Biocompatible PVDF Nanofibers with Embedded Magnetite Nanodiscs Enable Wireless Magnetoelectric Stimulation in Premotor Cortex

open access: yesAdvanced Healthcare Materials, EarlyView.
Flexible, biocompatible PVDF nanofibers embedded with magnetite nanodiscs enable wireless magnetoelectric neuromodulation. Shape anisotropy of the nanodiscs facilitates magnetostrictive strain transfer under alternating magnetic fields, allowing activation of neurons in vitro and behavioral modulation in vivo, without requiring rigid implants or ...
Lorenzo Signorelli   +11 more
wiley   +1 more source

Cytokines and troponin-I in cardiac dysfunction after coronary artery grafting with cardiopulmonary bypass

open access: yesArquivos Brasileiros de Cardiologia, 2001
OBJECTIVE: The association between cytokines and troponin-I with cardiac function after cardiac surgery with cardiopulmonary bypass remains a topic of continued investigation.
Neverton Savaris   +2 more
doaj   +1 more source

Estimation of ejection fraction with ventriculography versus echocardiography in patients referred for cardiac surgery [PDF]

open access: yes, 2016
: Aim: The aim of this study was to compare the estimation of ejection fraction (EF) by ventricuography (VG) and echocardiography (ECHO) in patients referred for surgery and to validate the results by comparison with other published data.
Camilleri, Liberato   +2 more
core  

Energy ejection in the collapse of a cold spherical self-gravitating cloud

open access: yes, 2009
When an open system of classical point particles interacting by Newtonian gravity collapses and relaxes violently, an arbitrary amount of energy may in principle be carried away by particles which escape to infinity.
Aarseth   +37 more
core   +3 more sources

The Refractory-to-Ice Mass Ratio in Comets [PDF]

open access: yes, 2018
We review the complex relationship between the dust-to-gas mass ratio usually estimated in the material lost by comets, and the Refractory-to-Ice mass ratio inside the nucleus, which constrains the origin of comets.
Blum, J.   +9 more
core   +4 more sources

Digitonin‐Loaded Nanoscale Metal–Organic Framework for Mitochondria‐Targeted Radiotherapy‐Radiodynamic Therapy and Disulfidptosis

open access: yesAdvanced Materials, EarlyView.
A mitochondria‐targeted cationic nanoscale metal organic framework shows strong radiotherapy‐radiodynamic therapy effects and selectively releases digitonin in acidic tumor microenvironments to induce disulfidptosis of cancer cells and downregulate immune checkpoints in cancer and T cells, thereby eliciting strong antitumor immunity to effectively ...
Wenyao Zhen   +7 more
wiley   +1 more source

Modifiable predictors of ventricular ectopy in the community [PDF]

open access: yes, 2018
Background Premature ventricular contractions (PVCs) predict heart failure and death. Data regarding modifiable risk factors for PVCs are scarce. Methods and Results We studied 1424 Cardiovascular Health Study participants randomly assigned to 24-hour ...
Dewland, Thomas A   +5 more
core   +2 more sources

Spironolactone for heart failure with preserved ejection fraction.

open access: yesNew England Journal of Medicine, 2014
BACKGROUND Mineralocorticoid-receptor antagonists improve the prognosis for patients with heart failure and a reduced left ventricular ejection fraction.
B. Pitt   +22 more
semanticscholar   +1 more source

Hierarchically MOF‐Based Porous Monolith Composites for Atmospheric Water Harvesting

open access: yesAdvanced Materials, EarlyView.
This review explores the design of hierarchical porous materials for atmospheric water harvesting, focusing on metal‐organic frameworks (MOFs) and porous monoliths. Emphasis is placed on integrating MOF nanoscale porosity with the microscale channels of monolithic scaffolds to enhance sorption‐desorption performance.
Mahyar Panahi‐Sarmad   +7 more
wiley   +1 more source

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