Results 1 to 10 of about 25,590,475 (271)

The Evaluation of P‐Wave Parameters in Patients With Percutaneous Closure of Atrial Septal Defect [PDF]

open access: yesAnnals of Noninvasive Electrocardiology
Background Atrial septal defect (ASD) can lead to volume overload and related changes in P‐wave parameters in surface electrocardiograms of these patients. In this study, we aimed to evaluate the effect of volume overload on P‐wave parameters in patients
Ramazan Astan   +3 more
doaj   +2 more sources

P-wave dispersion: an update

open access: yesIndian Pacing and Electrophysiology Journal, 2016
P-wave dispersion (PWD, Pd or Pdis) is a noninvasive electrocardiographic (ECG) marker for atrial remodeling and predictor for atrial fibrillation (AF).
Andrés Ricardo Pérez-Riera   +5 more
doaj   +3 more sources

Observations of resonant scattering in the thermosphere and upper mesosphere in the winter season of 2021 [PDF]

open access: yesEPJ Web of Conferences, 2021
An analysis of the Kamchatka lidar station data obtained in January-February 2021 is presented. Pronounced light scattering layers at altitudes of 300 km have been detected.
Bychkov Vasily   +2 more
doaj   +1 more source

A Large-scale Virtual Patient Cohort to Study ECG Features of Interatrial Conduction Block

open access: yesCurrent Directions in Biomedical Engineering, 2022
Interatrial conduction block refers to a disturbance in the propagation of electrical impulses in the conduction pathways between the right and the left atrium. It is a risk factor for atrial fibrillation, stroke, and premature death. Clinical diagnostic
Bender Jule   +5 more
doaj   +1 more source

Ocean swell within the kinetic equation for water waves [PDF]

open access: yesNonlinear Processes in Geophysics, 2017
Results of extensive simulations of swell evolution within the duration-limited setup for the kinetic Hasselmann equation for long durations of up to 2  ×  106 s are presented.
S. I. Badulin   +6 more
doaj   +1 more source

Himalayan P waves [PDF]

open access: yesInternal and Emergency Medicine, 2010
A 22-year-old man presented with a history of breathlessness of around 6 months duration. The breathlessness was particularly prominent on walking. He had noted that his fingers were of a bluish hue over the prior 2 months. He denied any history of chest pain, syncope, cyanotic spells or arthritis during his childhood.
Vishal, Sharma   +2 more
openaire   +2 more sources

Broadband Solar Metamaterial Absorbers Empowered by Transformer‐Based Deep Learning

open access: yesAdvanced Science, 2023
The research of metamaterial shows great potential in the field of solar energy harvesting. In the past decade, the design of broadband solar metamaterial absorber (SMA) has attracted a surge of interest.
Wei Chen   +6 more
doaj   +1 more source

The Effect of Severe Pain on Transmyocardial Repolarization Parameters in Renal Colic Patients

open access: yesEurasian Journal of Emergency Medicine, 2022
Aim:In this study, we evaluated changes in transmyocardial repolarization parameters in renal colic patients with severe pain. Our secondary aim was to evaluate the changes in these parameters after pain relief.Materials and Methods:The study was a ...
Meral Tandoğan   +7 more
doaj   +1 more source

Giant P waves [PDF]

open access: yesHeart, 2003
A 15 year old girl was referred to our heart failure and transplant clinic with hypertrophic cardiomyopathy. Physical examination revealed …
T A, Simmers, J H, Kirkels
openaire   +2 more sources

3D simulation of stress wave propagation in jointed rock mass with filling joint

open access: yesShuili Shuiyun Gongcheng Xuebao, 2020
In order to study the propagation characteristics of stress wave in rock mass with filling joints, the Three- Dimension Distinct Element Code was used to explore the influence of different occurrence joints on the penetration and reflection rules of P ...
DING Yingxun   +2 more
doaj   +1 more source

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