Results 171 to 180 of about 612,618 (303)

Spaceborne and spaceborn: Physiological aspects of pregnancy and birth during interplanetary flight

open access: yesExperimental Physiology, EarlyView.
Abstract Crewed interplanetary return missions that are on the planning horizon will take years, more than enough time for initiation and completion of a pregnancy. Pregnancy is viewed as a sequence of processes – fertilization, blastocyst formation, implantation, gastrulation, placentation, organogenesis, gross morphogenesis, birth and neonatal ...
Arun V. Holden
wiley   +1 more source

Cine formativo

open access: yes, 1970
"Este Artículo pertenece a la sección Arte, Letras, Espectáculos. "
openaire   +1 more source

Circumferential strain and strain rates of the descending aorta as novel measures of aortic stiffness and wall mechanics from standard cardiac MRI

open access: yesExperimental Physiology, EarlyView.
Abstract During standard cardiovascular magnetic resonance (CMR) the horizontal long‐axis cine image (i.e., 4‐chamber) is captured which includes a cross‐section of the descending aorta. The aortic cross‐section can be used to assess aortic stiffness (distensibility; ∆area/pressure) or circumferential strain (percentage vascular deformation).
Denis J. Wakeham   +13 more
wiley   +1 more source

Enhancing stroke risk stratification in atrial fibrillation through non‐Newtonian blood modelling and Gaussian process emulation

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend Non‐Newtonian modelling and GPEs for stroke risk in atrial fibrilation patients. Abstract Atrial fibrillation (AF) is the most common heart arrhythmia, linked to a five‐fold increase in stroke risk. The left atrial appendage (LAA), prone to blood stasis, is a common thrombus formation site in AF patients.
Paolo Melidoro   +12 more
wiley   +1 more source

Fetal glucose availability: a key regulator of the metabolic, hormonal and contractility profiles of the fetal sheep heart

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend To investigate the role of glucose availability in fetal left ventricle (LV) development, this study assessed whether maternal late gestation undernutrition (LGUN; 50% of Control diet) induced alterations in the contractility, metabolic, and hormonal profile can be ameliorated in LGUN fetuses receiving glucose infusion (LGUN+G ...
Melanie R. Bertossa   +10 more
wiley   +1 more source

Groupwise image registration with edge‐based loss for low‐SNR cardiac MRI

open access: yesMagnetic Resonance in Medicine, Volume 94, Issue 3, Page 1257-1268, September 2025.
ABSTRACT Purpose The purpose of this study is to perform image registration and averaging of multiple free‐breathing single‐shot cardiac images, where the individual images may have a low signal‐to‐noise ratio (SNR). Methods To address low SNR encountered in single‐shot imaging, especially at low field strengths, we propose a fast deep learning (DL ...
Xuan Lei   +3 more
wiley   +1 more source

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