Results 31 to 40 of about 52,967 (287)

Effect on Radon Exhalation Rate Due to Cracks in Concrete

open access: yesNordic Concrete Research, 2019
The second largest cause of lung cancer in the World is related to radon (222Rn) and its progenies in our environment. Building materials, such as concrete, contribute to the production of radon gas through the natural decay of 238U from its constituents.
Döse Magnus, Silfwerbrand Johan
doaj   +1 more source

Unraveling Quantitative Sensing Mechanism and Predictive Molecular Metrics for High‐Performance OFET Amine Sensors

open access: yesAdvanced Functional Materials, EarlyView.
This study introduces a novel chloro boron subphthalocyanine/polymer blend OFET sensor achieving 0.005 ppb limit of detection for ammonia at room temperature and high selectivity against similar amines. An original theoretical framework is proposed to describe the sensing mechanism, relating analyte molecular volume and Lewis basicity to sensor ...
Kavinraaj Ella Elangovan   +6 more
wiley   +1 more source

Facts, Legends and Myths on the Evolution of Resuscitation [PDF]

open access: yes, 2012
This study aimed to overview in chronological order a number of "facts" and "myths" that have been reported in the literature on the history of resuscitation.
Avramidis, S
core  

Radioactivity and radon emanation fraction of the granites sampled at Misasa and Badgastein [PDF]

open access: yes, 2008
The chemical composition was analyzed and the radioactivity, radon exhalation rate and emanation fraction were measured to investigate the characteristics of the granites sampled at Misasa and Badgastein, world famous for radon therapy.
Akihiro Sakoda   +14 more
core   +1 more source

Gourd‐Inspired Design of Unit Cell with Multiple Gradients for Physiological‐Range Pressure Sensing

open access: yesAdvanced Functional Materials, EarlyView.
Gourd‐shaped micro‐dome arrays with coordinated modulus, conductivity, and geometric gradients co‐optimize sensitivity and linearity in piezoresistive tactile sensors. Under pressure, a solid upper dome embeds into a porous lower dome, triggering rapid contact‐area growth and series‐to‐parallel conduction, enabling unsaturated, intensity‐resolved ...
Jiayi Xu   +6 more
wiley   +1 more source

Radon exhalation rate and radon activity in soils of riverine environs of South Karnataka

open access: yesRadiation Protection and Environment, 2018
In the present study, sealed “can technique” using solid-state nuclear track detector (LR-115) films was employed to measure the radon exhalation rate and radium concentration in soil samples of Cauvery river environment.
C S Kaliprasad, Y Narayana
doaj   +1 more source

Anomalous Pressure‐Temperature Ultrahigh Sensitivities in Atomically Engineered Carbonitride MXenes for Multifunctional Wearable Human–Machine Interfaces: Joint Computational–Experimental Elucidations

open access: yesAdvanced Functional Materials, EarlyView.
Atomically engineered layered 2D Ti3CNTz carbonitride MXene exhibits ultrahigh heat and pressure sensitivity, enabling dual‐mode sensors with 300%–400% performance enhancement and durability for real‐time health‐monitoring interface devices. Precise nitrogen incorporation (e.g., Ti3C1.8N0.2Tz) boosts conductivity, enhancing temperature response, while ...
Debananda Mohapatra   +12 more
wiley   +1 more source

Outdoor radon and thoron in an area with naturally ventilating bedrock fractures

open access: yesFrontiers in Environmental Science
Open fractures lead to increased permeability of the bedrock, and, if connected to the surface, allow for groundwater flow and air ventilation. Radon and thoron received by groundwater and ventilating air from bedrock can then be released at the surface.
Hallvard Haanes   +3 more
doaj   +1 more source

Exhalation of alternative tobacco product aerosols differs from cigarette smoke—and may lead to alternative health risks

open access: yesTobacco Use Insights, 2022
Background Variation in alternative tobacco product (ATP) constituents, heating potential, and consumer behaviors have made it difficult to characterize their health risks.
Emma Karey PhD   +7 more
doaj   +1 more source

Brain-heart interactions are modulated across the respiratory cycle via interoceptive attention

open access: yesNeuroImage, 2022
Respiration and heartbeat continuously interact within the living organism at many different levels, representing two of the main oscillatory rhythms of the body and providing major sources of interoceptive information to the brain.
Andrea Zaccaro   +4 more
doaj   +1 more source

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