Results 171 to 180 of about 2,021,559 (378)

Silent Cerebral Infarctions with Reduced, Mid-Range and Preserved Ejection Fraction in Patients with Heart Failure

open access: yesArquivos Brasileiros de Cardiologia
Heart failure predisposes to an increased risk of silent cerebral infarction, and data related to left ventricular ejection fraction are still limited.
Márcia Maria Carneiro Oliveira   +7 more
doaj   +1 more source

Hypervelocity runaways from the Large Magellanic Cloud

open access: yes, 2017
We explore the possibility that the observed population of Galactic hypervelocity stars (HVSs) originate as runaway stars from the Large Magellanic Cloud (LMC).
Boubert, Douglas   +3 more
core   +1 more source

Adsorption and Separation by Flexible MOFs

open access: yesAdvanced Materials, EarlyView.
Flexible metal–organic frameworks (MOFs) present significant potential for gas storage and separation due to their structural dynamic. This review explores the rationale behind the flexible MOFs' enhanced working capacity and separation factors. It also addresses key challenges, including phase transition kinetics, crystal robustness, cycling, shaping,
Irena Senkovska   +4 more
wiley   +1 more source

Three-body encounters in the Galactic centre: the origin of the hypervelocity star SDSS J090745.0+024507

open access: yes, 2005
Hills (1988) predicted that runaway stars could be accelerated to velocities larger than 1000 km/s by dynamical encounters with the supermassive black hole (SMBH) in the Galactic center.
Gualandris, Alessia   +2 more
core   +2 more sources

Nontraumatic determination of left ventricular ejection fraction by radionuclide angiocardiography. [PDF]

open access: bronze, 1975
H. R. Schelbert   +6 more
openalex   +1 more source

Heart Failure With Preserved Ejection Fraction In Perspective.

open access: yesCirculation Research, 2019
Approximately half of the patients with signs and symptoms of heart failure have a left ventricular ejection fraction that is not markedly abnormal. Despite the historically initial surprise, heightened risks for heart failure specific major adverse ...
M. Pfeffer, A. Shah, B. Borlaug
semanticscholar   +1 more source

Advancements in Understanding the Physicochemical Properties of Reticular Materials: An In Situ and Operando Spectroscopic Perspective

open access: yesAdvanced Materials, EarlyView.
This review explores how in situ and operando spectroscopic techniques reveal the real‐time behavior of reticular materials, including MOFs and COFs. These methods track material formation and functionalization, structural changes, defect formation, dynamic responses to external triggers, and catalytic processes.
Bettina Baumgartner   +4 more
wiley   +1 more source

Solvent‐Free Fabrication Methods of Metal Halide Perovskites

open access: yesAdvanced Materials, EarlyView.
This review explores the current status of solvent‐free fabrication methods of metal halide perovskites, such as thermal evaporation, magnetron sputtering, pulsed laser deposition, e‐beam and atomic layer deposition, solid phase growth, and laser printing.
Ran Ji   +5 more
wiley   +1 more source

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