Results 41 to 50 of about 503,148 (240)

TIMING RELATIONSHIPS IN HUMAN CORTICAL PROCESSING [PDF]

open access: yes, 1986
Although a number of studies have suggested that the phases of the alpha cycle and the cardiac cycle reflect temporal relationships in cortical processing, these studies are not conclusive.
RICE, DANIEL MICHAEL
core   +1 more source

The light and shadow of senescence and inflammation in cardiovascular pathology and regenerative medicine [PDF]

open access: yes, 2017
Recent epidemiologic studies evidence a dramatic increase of cardiovascular diseases, especially associated with the aging of the world population. During aging, the progressive impairment of the cardiovascular functions results from the compromised ...
Cavarretta, Elena   +9 more
core   +4 more sources

Mitochondrial Deformation During the Cardiac Mechanical Cycle [PDF]

open access: yesThe Anatomical Record, 2018
ABSTRACTCardiomyocytes both cause and experience continual cyclic deformation. The exact effects of this deformation on the properties of intracellular organelles are not well characterized, although they are likely to be relevant for cardiomyocyte responses to active and passive changes in their mechanical environment.
E. A. Rog‐Zielinska   +3 more
openaire   +4 more sources

Downregulation of O‐GlcNAcylation enhances etoposide‐induced p53‐mediated apoptosis in HepG2 human liver cancer cells

open access: yesFEBS Open Bio, EarlyView.
Etoposide, a topoisomerase II inhibitor, reduces O‐GlcNAcylation in HepG2 liver cancer cells. Further inhibition of O‐GlcNAc transferase by OSMI‐1 enhanced etoposide‐induced apoptosis, lowering the IC50 for viability and increasing the EC50 for cytotoxicity.
Jaehoon Lee   +5 more
wiley   +1 more source

A cortical potential reflecting cardiac function [PDF]

open access: yes, 2007
Emotional trauma and psychological stress can precipitate cardiac arrhythmia and sudden death through arrhythmogenic effects of efferent sympathetic drive. Patients with preexisting heart disease are particularly at risk.
Angell James   +49 more
core   +2 more sources

Matrigel inhibits elongation and drives endoderm differentiation in aggregates of mouse embryonic stem cells

open access: yesFEBS Open Bio, EarlyView.
Stem cell‐based embryo models (SCBEMs) are valuable to study early developmental milestones. Matrigel, a basement membrane matrix, is a critical substrate used in various SCBEM protocols, but its role in driving stem cell lineage commitment is not clearly defined.
Atoosa Amel   +3 more
wiley   +1 more source

Learning the dynamics and time-recursive boundary detection of deformable objects [PDF]

open access: yes, 2008
We propose a principled framework for recursively segmenting deformable objects across a sequence of frames. We demonstrate the usefulness of this method on left ventricular segmentation across a cardiac cycle.
Cetin, Mujdat   +4 more
core   +4 more sources

Log file‐based quality assurance method for respiratory gating system

open access: yesJournal of Applied Clinical Medical Physics, EarlyView.
Abstract Background As medical linear accelerator technology advances, enabling higher dose rate deliveries, hypofractionation regimens has increased. This necessitates respiratory gating systems that synchronize radiation delivery with tumor position, requiring simple rigorous quality assurance (QA) to ensure treatment accuracy and patient safety ...
Wonjoong Cheon   +7 more
wiley   +1 more source

Taking Context to Heart: Momentary Emotions, Menstrual Cycle, and Cardiac Autonomic Regulation [PDF]

open access: yes, 2019
Background. Emotions have long been discussed in conjunction with the autonomic nervous system. Most research on heart-mood linkages does not consider sex differences or an evident underlying mechanism for sex differences- sex hormone levels.
Simon, Shauna
core  

Segmentation of the evolving left ventricle by learning the dynamics [PDF]

open access: yes, 2008
We propose a method for recursive segmentation of the left ventricle (LV) across a temporal sequence of magnetic resonance (MR) images. The approach involves a technique for learning the LV boundary dynamics together with a particle-based inference ...
Cetin, Mujdat   +4 more
core   +2 more sources

Home - About - Disclaimer - Privacy