Results 31 to 40 of about 586 (176)

The closed-can exhalation method for measuring radon

Journal of Research of the National Institute of Standards and Technology, 1990
Results from closed-can radon exhalation experiments must be interpreted bearing the time-dependent radon diffusion theory in mind. A rapid change from the free to final steady-state exhalation rate will take place for all samples that are thin compared with the radon diffusion length.
openaire   +2 more sources

Obstructive Sleep Apnea: Epidemiology, Pathophysiology, Complications, Diagnosis, Management, and Emerging Fibrosis‐Linked Remodeling

MedComm, Volume 7, Issue 8, August 2026.
Obstructive sleep apnea (OSA) is characterized by recurrent upper‐airway collapse, which generates key nocturnal stressors including intermittent hypoxia, sleep fragmentation, intrathoracic pressure stress, and sympathetic activation. These physiological disturbances converge on shared biological mechanisms, including oxidative stress, inflammation ...
Nhi Ho Thi Thuy, Thị Hằng Giang Phan, Ali Hussein Eid, Paola Maccioccu, Stefania Camboni, Gavino Casu, Anna Maria Posadino, Roberta Giordo, Gianfranco Pintus   +8 more
wiley   +1 more source

Radon-thoron measurements in air and soil from some districts of northern part of India [PDF]

Nuclear Technology and Radiation Protection, 2015
Radon, thoron and their progenies in the indoor environment are considered as one of the health hazards. The alpha emitting nature of these gases made it possible to detect in indoor environment with the help of nuclear track detector techniques.
Mann Nisha, Kumar Amit, Kumar Sushil, Chauhan Rishi Pal   +3 more
doaj   +1 more source

Beyond Upper Airway Involvement: Evidence of Intrinsic Lung Disease in a Mouse Model of Mucopolysaccharidosis I

Journal of Inherited Metabolic Disease, Volume 49, Issue 4, July 2026.
ABSTRACT Almost all patients with mucopolysaccharidosis (MPS) develop respiratory dysfunction of varying severity during disease progression. While respiratory disease in MPS has traditionally been attributed to upper airway obstruction caused by glycosaminoglycan (GAG) accumulation in the trachea and bronchi, involvement of the intrapulmonary ...
Martin Donnelley, Ronan Smith, Patricia Cmielewski, Nicole Reyne, Piraveen Pirakalathanan, Nina Eikelis, Kris Nilsen, Jennie Louise, Kate Barratt, Jessica Logan, Ben Ung, David Parsons, Doug Brooks, Sandra Orgeig, Emma Parkinson‐Lawrence   +14 more
wiley   +1 more source

Mental Health Promotion Through Nursing Interventions Focused on Anxiety, Sleep and Well‐Being: A Scoping Review

International Journal of Mental Health Nursing, Volume 35, Issue 2, April 2026.
ABSTRACT Anxiety is more prevalent than other mental disorders and maintains a bidirectional relationship with sleep disturbances, negatively affecting well‐being and overall mental health. This scenario underscores the need to strengthen and qualify nursing practice in addressing these outcomes.
Louise Constancia de Melo Alves Silva, Samia Valeria Ozorio Dutra, Barbara Fernandes Ferreira, Yenifer Lizeth Gañan Rojas, Kauanny Vitoria Gurgel dos Santos, Carlos Jordão Assis de Silva, Hylarina Maria Montenegro Diniz Silva, Kátia Regina Barros Ribeiro, Daniele Vieira Dantas, Rodrigo Assis Neves Dantas   +9 more
wiley   +1 more source

Multiple point rapid measurement method for radon exhalation rate in uranium tailings reservoir and its application

四川大学学报. 自然科学版, 2018
Based on the principle of that the equivalent decay constant of perforated accumulation chamber, we propose a new method to rapidly measure the surface radon exhalation rate with multi-point detection technique.
LI Zhi-Qiang, XIAO De-Tao, ZHAO Gui-Zhi, CHEN Ji-You, ZHOU Yi   +4 more
doaj  

Return to an extreme environment exposure after pulmonary infection: SCUBA diving as a model?

Physiological Reports, Volume 14, Issue 7, April 2026.
Graphical overview of the experimental protocol used to investigate post‐COVID physiological responses during scuba diving at three different depths. Abstract The human body implements several adaptive mechanisms to perform in extreme environments. Increasingly, individuals return to such conditions after pulmonary infections, raising concerns about ...
Danilo Cialoni, Andrea Brizzolari, Simona Mrakic‐Sposta, Alessandra Vezzoli, Cinzia Dellanoce, Massimo Pieri, Riccardo Pelliccia, Chiara Petrassi, Gerardo Bosco, Alessandra Barassi, Alessandro Marroni   +10 more
wiley   +1 more source

Experimental study on the radon exhalation characteristics of block walls currently used in China

Nuclear Engineering and Technology
In order to establish a predictive model for indoor radon concentration in Chinese buildings, walls were constructed using Chinese-style bricks to study the relationship between radon exhalation rates and indoor radon concentrations, as well as the ...
Shuyuan Liu, Li Zhang, Jinsheng Jiang, Xin Wang, Jimin Zhao, Lihai Zheng, Yongzhong Ma, Zhen Zhang, Qiang Xiong, Yanhui Sui, Shanshan Bo, Wei Cheng, Dong Yan, Tianyu Teng, Lixin Gao, Kuke Ding   +15 more
doaj   +1 more source

Statistical Characterization of Damage of Different Surface P-Wave Velocity Sets under Dynamic Load and Study on Overall Radon Detection Consistency

Lithosphere, 2021
On the basis of reviewing the existing research status of cumulative damage of the rock mass and summarizing the existing engineering application fields of radon, this paper attempts to apply radon detection technology to the research field of rock ...
Shuai Zhang, Jiantao Cao, Yong Liu, Jun Liu, Changshou Hong, Bo Lei   +5 more
doaj   +1 more source

Radon and thoron exhalation rate in the soil of Western Haryana, India

Environmental Monitoring and Assessment, 2022
Abstract This study, reports the exhalation rates of radon and thoron from surface soil collected from 60 rural sites of district Hisar, Haryana, India. The exhalation rates of Rn222 (Radon)& Rn220(Thoron) were measured by portable SMART RnDuo (AQTEK SYSTEMS) using a mass accumulation chamber which is equipped with a scintillation material ...
Shakuntala, Rani, Rajender Singh, Kundu, Vinod Kumar, Garg, Balvinder, Singh, Amanjeet, Panghal, Neeraj, Dilbaghi   +5 more
openaire   +2 more sources