Results 81 to 90 of about 1,468 (205)

T1‐T2 Interplay in the Complex Immune Landscape of Severe Asthma

open access: yesImmunological Reviews, Volume 330, Issue 1, March 2025.
ABSTRACT Asthma is orchestrated by an aberrant immune response involving a complex interplay between multiple inflammatory cell types. An increase in Th2 cells in the asthmatic airway is a hallmark of asthma, and biologics blocking their effector functions have been life‐changing for many severe asthma patients who poorly respond to immunosuppression ...
Marc Gauthier   +2 more
wiley   +1 more source

Radon Gas Concentrations in Soil and Radon Exhalation Rates in Thiqar City

open access: yesEngineering and Technology Journal, 2016
First part to determination concentrations of Rn-222 in surface samples of soil, the highest average concentration of Rn-222 was found in AL-Refai region was equal to (127.500±2 Bq/m3), while lowest the average was found in AL-Aekeckh region which was equal to (33.750±2.2 Bq/m3), with an average value of (75.875±21.8 Bq/m3) ,while the (RER) was found ...
Nada F. Tawfiq   +2 more
openaire   +2 more sources

Estimation of global radon exhalation rate distribution [PDF]

open access: yes
A radon exhalation rate distribution model was developed, which considers dependency on soil water saturation, soil temperature and soil texture. The global averages of the radon exhalation rates were calculated to be 17.5 and 18.0 mBq·m^{-2}·s^{-1} by ...
Goto, Masayoshi   +4 more
core  

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

Influence of thoron on measurement results of radon exhalation rate [PDF]

open access: yes, 2002
Because of thoron exhalation, the measurement results of radon exhalation rate using a local still method is usually larger than the true value of radon flux rate of the monitored material surface.
Ling, Q, Leung, Zhao, GZ, Xiao, DT
core  

New gamma method for the radon exhalation measurement from building materials [PDF]

open access: yes, 2017
In the era of the energy saving policy increases the importance of the measurement of radon exhalation from building materials. We present a new method of the radon exhalation measurement using only aHPGe detector or any other gamma spectrometer.
Čeliković, Igor   +5 more
core  

Natural Radionuclides and Radon Exhalation Rate in the Soils of Cauvery River Basin

open access: yesAir, Soil and Water Research, 2017
In this study, systematic measurement of activity concentrations of 40 K, 226 Ra, and 232 Th and radon exhalation rate has been done in soil samples of Cauvery River environment.
CS Kaliprasad, PR Vinutha, Y Narayana
doaj   +1 more source

Radon exhalation rates corrected for leakage and back diffusion – Evaluation of radon chambers and radon sources with application to ceramic tile

open access: yesJournal of Radiation Research and Applied Sciences, 2014
The natural radon decay, leakage and back diffusion are the main removal processes of radon from its container. Ignoring these processes leads to underestimate the measured value of radon related parameters like exhalation rate and radium content.
M. Abo-Elmagd
doaj   +1 more source

Level of Radon Exhalation Rate from Soil in Some Sedimentary and Granite Areas in China [PDF]

open access: yes, 2020
An investigation of radon exhalation rate from soil by using a 'closed-can' method with activated charcoal absorption on a small scale has been carried out to determine the radon exhalation rate of about 144 samples from sedimentary and granite
Wenke Mei   +6 more
core  

Natural radioactivity and radon exhalation in stony materials [PDF]

open access: yes, 1997
Recently, radon sources have been a matter of concern, as high levels have been measured in some houses. This work contributes to the assessment of radon exhalation from those stones which are mostly used for building materials, The first part of this ...
G. Valli   +4 more
core   +1 more source

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