Results 101 to 110 of about 12,556,675 (343)

Widespread depolarization during expiration: A source of respiratory drive? [PDF]

open access: yes, 2014
Respiration influences various pacemakers and rhythms of the body during inspiration and expiration but the underlying mechanisms are relatively unknown.
Barnes, Vernon A.   +3 more
core  

Exploring atmospheric radon with airborne gamma-ray spectroscopy [PDF]

open access: yes, 2017
$^{222}$Rn is a noble radioactive gas produced along the $^{238}$U decay chain, which is present in the majority of soils and rocks. As $^{222}$Rn is the most relevant source of natural background radiation, understanding its distribution in the ...
Albéri, Matteo   +6 more
core   +2 more sources

Enhancing Sensitivity across Scales with Highly Sensitive Hall Effect‐Based Auxetic Tactile Sensors

open access: yesAdvanced Intelligent Systems, Volume 7, Issue 3, March 2025.
Herein, a tactile sensor based on hall‐effect sensors with an auxetic structure, called Hall effect‐based auxetic tactile sensor (HEATS), is proposed. The change in magnetism resulting from the deformation of the auxetic structure is utilized for sensing.
Youngheon Yun   +6 more
wiley   +1 more source

Effect of inspiratory pressure support on exercise performance in patients with chronic obstructive pulmonary disease [PDF]

open access: yes, 2006
Title: Effect of inspiratory pressure support on exercise performance in patients with chronic obstructive pulmonary disease. Purpose: This study examined the effects of a non-invasive ventilator on submaximal and maximal exercise performance in ...
Doggett, Anita
core  

Biomarker‐Agnostic Detection of Ovarian Cancer from Blood Plasma Using a Machine Learning‐Driven Electronic Nose

open access: yesAdvanced Intelligent Systems, EarlyView.
This study introduces a biomarker‐agnostic diagnostic strategy for ovarian cancer, utilizing a machine learning‐enhanced electronic nose to analyze volatile organic compound signatures from blood plasma. By overcoming the dependence on specific biomarkers, this approach enables accurate detection, staging, and cancer type differentiation, offering a ...
Ivan Shtepliuk   +4 more
wiley   +1 more source

Indoor radon: an overview on a perennial problem [PDF]

open access: yes, 2012
According to the World Health Organization (WHO) radon constitutes the second cause of lung cancer in the general population, the first being smoking. In addition health investigations also show that children are more susceptible than adults to ionizing
Pacheco-Torgal, F.
core   +1 more source

Cost Utility Analysis of Fluticasone Exhalation Delivery System Versus Budesonide Nasal Irrigation for Chronic Rhinosinusitis With Nasal Polyps

open access: yesInternational Forum of Allergy &Rhinology, EarlyView.
ABSTRACT Background Chronic rhinosinusitis with nasal polyps (CRSwNP) is managed after sinus surgery with topical corticosteroids. Given limited distribution of nasal steroid sprays, patients have the option of either steroid nasal irrigation (SNI) or exhalation delivery system with fluticasone (EDS‐FLU).
Daniel Xiao   +3 more
wiley   +1 more source

Verification of the applicability of the RAD7 radon monitor to the solid radon source exhalation reference model

open access: yesNuclear Engineering and Technology
The RAD7 radon monitor, based on the electrostatic collection method, is sensitive to humidity during measurements, necessitating the use of a desiccant to maintain the relative humidity in its built-in chamber less than 10 %.
Huiying Li   +10 more
doaj   +1 more source

Exhalation rate of radon-222 from concrete and cement mortar

open access: yesNukleonika, 2018
The main sources of radon in the air of dwellings are soil, building materials, and groundwater. This study aimed to determine the exhalation rate of 222Rn from samples made of concrete and cement mortars, as well as to evaluate by means of gamma ...
Perna Allan Felipe Nunes   +6 more
doaj   +1 more source

Measurement of Radon Concentration Using SSNTD in Bartella Region

open access: yesAl-Mustansiriyah Journal of Science, 2019
The alpha-radioactive inert gas Radon exhalation is associated with presence of Radium and its ultimate precursor uranium in the earth crust. Uranium decay deposits radon in soil, which is harmful on human and environment.
Malik Hussain Kheder
doaj   +1 more source

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