Results 21 to 30 of about 35,378 (207)

Radon exhalation rates from common building materials in India: Effect of back diffusion [PDF]

open access: yesNuclear Technology and Radiation Protection, 2016
A radon exhalation study for building materials was carried out by closed accumulator technique using plastic track detector LR-115 type-II, taking into account the effect of back diffusin.
Kumar Amit, Chauhan Pal Rishi
doaj   +1 more source

The Determination of Radon/Thoron Exhalation Rate in an Underground Coal Mine—Preliminary Results

open access: yesInternational Journal of Environmental Research and Public Health, 2022
The objective of this work was to perform a series of measurements of radon and thoron exhalation in the underground workings of an experimental coal mine.
M. Bonczyk   +5 more
semanticscholar   +1 more source

Slow-Paced Breathing: Influence of Inhalation/Exhalation Ratio and of Respiratory Pauses on Cardiac Vagal Activity

open access: yesSustainability, 2021
Slow-paced breathing has been shown to enhance the self-regulation abilities of athletes via its influence on cardiac vagal activity. However, the role of certain respiratory parameters (i.e., inhalation/exhalation ratio and presence of a respiratory ...
S. Laborde   +6 more
semanticscholar   +1 more source

Estimation of natural radionuclide and exhalation rates of environmental radioactive pollutants from the soil of northern India

open access: yesNuclear Engineering and Technology, 2020
The estimation of radioactivity level is vital for population health risk assessment and geological point of view and can be evaluated as rate of exhalation and source concentration (226Ra, 232Th and 40K).
Vandana Devi, Rishi Pal Chauhan
doaj   +1 more source

Evaluation of Exhalation Valves [PDF]

open access: yesThe Annals of Occupational Hygiene, 2005
Certification tests currently employed by some industrialized nations to certify respirators require that when challenged with air flow at a constant suction head of 25 mmH2O, the leakage into the facepiece from the exhalation valve(s) should not exceed 30 ml min(-1).
KUO, YU-MEI   +5 more
openaire   +2 more sources

Attention to cardiac sensations enhances the heartbeat-evoked potential during exhalation

open access: yesiScience
Summary Respiration and cardiac activity intricately interact through complex physiological mechanisms. The heartbeat-evoked potential (HEP) is an EEG fluctuation reflecting the cortical processing of cardiac signals.
A. Zaccaro   +6 more
semanticscholar   +1 more source

Determination of Radium and Radon Exhalation Rate as a Function of Soil Depth of Duhok Province - Iraq

open access: yesJournal of Radiation Research and Applied Sciences, 2021
Radon is a naturally occurring radioactive gas; generated during the decay process of radium, when alpha particles start to be emitted, turning the radium into radon.
W. Alhamdi, Khairi Abdullah
semanticscholar   +1 more source

Thoron emanation and exhalation of Slovenian soils determined by a PIC detector-equipped radon monitor

open access: yesNukleonika, 2016
The health risk from thoron (Rn-220) is usually ignored owing to its short half-life (55.6 s), but the generated thoron decay products can cause a significant dose contribution.
Jónás Jácint   +5 more
doaj   +1 more source

Exhaled NO and exhaled breath condensate pH in the evaluation of asthma control [PDF]

open access: yesRespiratory Medicine, 2011
Asthma is a chronic inflammatory airways disorder. However, no biomarker of airways inflammation has been included in the assessment of asthma control.To evaluate exhaled NO (FeNO) and exhaled breath condensate (EBC) pH in patients with asthma according to the level of control, and their performance in the identification of not well-controlled patients.
Kostikas, Konstantinos   +9 more
openaire   +3 more sources

Collection of exhaled breath and exhaled breath condensate in veterinary medicine. A review [PDF]

open access: yesVeterinary Quarterly, 2006
Collection of exhaled breath (EB) and exhaled breath condensate (EBC) is a noninvasive method for obtaining samples from the lower airways. While this technique has been well established for the diagnosis of lower respiratory tract diseases in human medicine, only a few studies have been performed in veterinary medicine. This article critically reviews
Zollinger, E   +3 more
openaire   +4 more sources

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