Results 121 to 130 of about 71,564 (304)

Investigation of transmural cardiac and fiber strain in ischemic and non-ischemic tissue during diastole

open access: yes, 2006
The cardiac wall has complex three-dimensional fiber structures and mechanical properties that enable the heart to efficiently pump the blood through the body.
Lundgren, Katarina
core   +2 more sources

Prediction of First and Recurrent Falls in Parkinson's Disease

open access: yesAnnals of Neurology, EarlyView.
Objective To develop and externally validate prediction models for next‐year falls in Parkinson's disease (PD), and to evaluate the incremental value of imaging and fluid biomarkers. Methods We developed models in Parkinson's Progression Markers Initiative (PPMI) to predict next‐year falls with external validation in University of Pennsylvania (UPenn ...
Joaquin A. Vizcarra   +13 more
wiley   +1 more source

Methacrylated Gelatin and Graphene Oxide Hybrid Hydrogels Composed‐Bioinks for 3D Tissue Engineering

open access: yesAdvanced NanoBiomed Research, EarlyView.
Bioinks made from hydrogels, such as methacrylated gelatin (GelMA), serve as the base material for bioprinted tissues, offering versatility and biocompatibility for a range of applications. Additional components however are still needed to improve functionality and mechanical stability of hydrogels. One of these components is graphene oxide (GO), added
Wanessa S. Mota   +10 more
wiley   +1 more source

Morphological and morphometric aspects of the equine aortic valve: New insights for comparative studies in mammals

open access: yesThe Anatomical Record, EarlyView.
Abstract New data on the equine aortic valve obtained using advanced techniques is especially important given the greater availability of animal models for translational research. Here we characterized the morphological and morphometric aspects of the equine aortic valve from 60 healthy hearts collected at equine abattoirs.
Vitor Pires Pereira   +3 more
wiley   +1 more source

A critical reappraisal of the carotid sinus and carotid bulb: Distinguishing neurohistological function from vascular geometry

open access: yesThe Anatomical Record, EarlyView.
This review redefines the carotid bulb (CB) as a variable geometric dilation shaped by hemodynamics and the carotid sinus (CS) as a conserved neurohistological baroreceptor field. Distinguishing these entities clarifies a century of anatomical confusion and links geometry, neurohistology, and clinical interpretation within a unified framework ...
Răzvan Costin Tudose   +2 more
wiley   +1 more source

Normal range of blood pressure in 7-11 year old children in Zahedan

open access: yesMajallah-i Dānishgāh-i ̒Ulūm-i Pizishkī-i Bābul, 2003
Background and Objective: Normal blood pressure varies based on age, sex, height and weight, however it is necessary to use standard references of evaluate the values. The objective of this study was to determine the rate of normal blood pressure in 7-11
GH.R Soleimani, NM Noori, T Boryrie
doaj  

Echocardiographic morphometry in healthy Bovine calves of upto 15 days of age

open access: yesIndian Journal of Animal Sciences
The present study was aimed to compare normal echocardiographic data in upto 15 days’ old cow and buffalo calves. The study included 26 healthy calves; 12 buffalo and 14 cow calves.
ABHISHEK VERMA   +2 more
doaj   +1 more source

Stress and strain calculation and illustratiom of the concept of zero-stress myocardium sarcomere length in diastole and systole.

open access: yes, 2019
A. A zero-stress bar with length L0 and its stretched length L to illustrate stress/strain definition. B. illustration of zero-stress myocardium sarcomere length and its in vivo stressed length in diastole; C.
Pedro J. del Nido (7245137)   +8 more
core   +1 more source

Morphological variation of the conus arteriosus in Chondrichthyes: Implications for ecology and evolution

open access: yesThe Anatomical Record, EarlyView.
Abstract Cartilaginous fish have diverse morphological traits that are essential for understanding their evolutionary history and ecological adaptations. However, the conus arteriosus and its valves, key components of the heart and blood circulation, have been underexplored in phylogenetic and ecomorphological contexts.
Maria Clara El Bayeh de Andrade   +1 more
wiley   +1 more source

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