Results 91 to 100 of about 1,566,571 (229)

EVOLUTION OF THE CIRCADIAN CLOCK IN EXTREME ENVIRONMENT: LESSONS FROM CAVEFISH. [PDF]

open access: yes, 2010
Evolution has been strongly influenced by the daily cycles of temperature and light imposed by the rotation of the Earth. Fascinating demonstrations of this are seen in extreme environments such as caves where some animals have remained completely ...
Cavallari, Nicola
core  

Procedimiento de Enfermería en la implantación de marcapasos transvenoso temporal.

open access: yesNURE Investigación, 2013
La implantación de marcapasos transvenoso temporal (MPTT) es una técnica que consiste en estimular de forma artificial el corazón cuando los marcapasos naturales no pueden mantener el ritmo y la frecuencia adecuados.
Mª Teresa Redecillas Peiró   +3 more
doaj  

Mechanism, dynamics, and biological existence of multistability in a large class of bursting neurons

open access: yes, 2010
Multistability, the coexistence of multiple attractors in a dynamical system, is explored in bursting nerve cells. A modeling study is performed to show that a large class of bursting systems, as defined by a shared topology when represented as dynamical
Akopov F. K.   +24 more
core   +1 more source

Electrochemical performance of polymer-derived SiOC and SiTiOC ceramic electrodes for artificial cardiac pacemaker applications

open access: yesCeramics International, 2020
Jongmoon Jang   +5 more
semanticscholar   +1 more source

EL FENÓMENO DE LA MEMORIA ELÉCTRICA: UN GRAN SIMULADOR. PRESENTACIÓN DE DOS CASOS / Electrical memory phenomenon - a great deceiver. Presentation of two cases [PDF]

open access: yesCorSalud, 2010
Resumen Presentamos dos pacientes en los que se desarrollaron ondas T negativas que aparecen en el electrocardiograma por la memoria eléctrica cardíaca.
Raimundo Carmona Puerta   +5 more
doaj  

Post-Implant Global Longitudinal Strain as a Predictor of Pacing-Induced Cardiomyopathy in Patients with Preserved Ejection Fraction Undergoing Pacemaker Placement

open access: yesReviews in Cardiovascular Medicine
Background: Right ventricular (RV) pacing exacerbates heart failure and increases cardiac mortality in patients with reduced ejection fraction (EF).
Sung Soo Kim   +2 more
doaj   +1 more source

Naturalness and Neuronal Implants – Changes in the perception of human beings [PDF]

open access: yes
With our contribution we would like to refer to the debate on nanotechnology (NT) and its implications for the public discourse on the relationship of human beings and technologies.
Fiedeler, Ulrich, Krings, Bettina
core   +1 more source

Survey of ST-Segment Changes due to Active Lead Fixation during Permanent Pacemaker Device Implantation as a Prognostic Indicator of its Performance

open access: yesمجله دانشکده پزشکی اصفهان, 2017
Background: Active lead implantation can create injury in myocardium that may be associated with a ST-segment elevation. This ST-segment elevation may be correlated with changes in other parameters such as threshold, sense, amplitude, impedance, and ...
Sima Sayah   +2 more
doaj  

Evaluation of Death among the Patients Undergoing Permanent Pacemaker Implantation: A Competing Risks Analysis

open access: yesIranian Journal of Public Health, 2017
Background: Permanent artificial pacemaker is one of the important therapies for treatment of cardiac conduction system problems. The present study aimed to determine the association between some predictive variables and all-cause and cause-specific ...
Haleh GHAEM   +2 more
doaj  

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