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Journal articles on the topic 'Racon'

Author: Grafiati

Published: 4 June 2021

Last updated: 27 July 2025

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1

Chen, Zhao, David L. Erickson, and Jianghong Meng. "Benchmarking Long-Read Assemblers for Genomic Analyses of Bacterial Pathogens Using Oxford Nanopore Sequencing." International Journal of Molecular Sciences 21, no. 23 (2020): 9161. http://dx.doi.org/10.3390/ijms21239161.

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Oxford Nanopore sequencing can be used to achieve complete bacterial genomes. However, the error rates of Oxford Nanopore long reads are greater compared to Illumina short reads. Long-read assemblers using a variety of assembly algorithms have been developed to overcome this deficiency, which have not been benchmarked for genomic analyses of bacterial pathogens using Oxford Nanopore long reads. In this study, long-read assemblers, namely Canu, Flye, Miniasm/Racon, Raven, Redbean, and Shasta, were thus benchmarked using Oxford Nanopore long reads of bacterial pathogens. Ten species were tested

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Gorobets, V., V. Sinits’kiy, and S. Khomenko. "A study of microwave over-sea propagation with high-potential x-band doppler radar." RADIOFIZIKA I ELEKTRONIKA 26, no. 1 (2021): 12–19. http://dx.doi.org/10.15407/rej2021.01.012.

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Subject and Purpose. The paper is devoted to the microwave propagation over the sea in the nearshore region. Emphasis is on microwave attenuation measurements in the semi-shade and deep-shade areas with a view to study conditions of the microwave propagation on a beyond-the-horizon path in the nearshore area using a radar method. Methods and Methodology. A radar technique, developed and tested, provides measuring a microwave attenuation coefficient along a 60 km long beyond-the-horizon path in the tropospheric surface layer. High-grade radar and Doppler radar beacons (racons) are employed. Of

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Safar, Hussain A., Fatemah Alatar, and Abu Salim Mustafa. "Three Rounds of Read Correction Significantly Improve Eukaryotic Protein Detection in ONT Reads." Microorganisms 12, no. 2 (2024): 247. http://dx.doi.org/10.3390/microorganisms12020247.

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Background: Eukaryotes’ whole-genome sequencing is crucial for species identification, gene detection, and protein annotation. Oxford Nanopore Technology (ONT) is an affordable and rapid platform for sequencing eukaryotes; however, the relatively higher error rates require computational and bioinformatic efforts to produce more accurate genome assemblies. Here, we evaluated the effect of read correction tools on eukaryote genome completeness, gene detection and protein annotation. Methods: Reads generated by ONT of four eukaryotes, C. albicans, C. gattii, S. cerevisiae, and P. falciparum, were

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Poje, Kristijan, Mario Brcic, Josip Knezovic, and Mario Kovac. "First Steps towards Efficient Genome Assembly on ARM-Based HPC." Electronics 13, no. 1 (2023): 39. http://dx.doi.org/10.3390/electronics13010039.

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Exponential advances in computational power have fueled advances in many disciplines, and biology is no exception. High-Performance Computing (HPC) is gaining traction as one of the essential tools in scientific research. Further advances to exascale capabilities will necessitate more energy-efficient hardware. In this article, we present our efforts to improve the efficiency of genome assembly on ARM-based HPC systems. We use vectorization to optimize the popular genome assembly pipeline of minimap2, miniasm, and Racon. We compare different implementations using the Scalable Vector Extension

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Romero-Calle, Danitza Xiomara, Francisnei Pedrosa-Silva, Luiz Marcelo Ribeiro Tomé, et al. "Molecular Characterization of Salmonella Phage Wara Isolated from River Water in Brazil." Microorganisms 11, no. 7 (2023): 1837. http://dx.doi.org/10.3390/microorganisms11071837.

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Antimicrobial resistance is increasing despite new treatments being employed, so novel strategies are required to ensure that bacterial infections remain treatable. Bacteriophages (phages; bacteria viruses) have the potential to be used as natural antimicrobial methods to control bacterial pathogens such as Salmonella spp. A Salmonella phage, Wara, was isolated from environmental water samples at the Subaé River Basin, Salvador de Bahia, Brazil. The basin has environmental impacts in its main watercourses arising from the dumping of domestic and industrial effluents and agricultural and anthro

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Paul, Anish, S. G. Kapoor, and R. E. DeVor. "A Chisel Edge Model for Arbitrary Drill Point Geometry." Journal of Manufacturing Science and Engineering 127, no. 1 (2005): 23–32. http://dx.doi.org/10.1115/1.1826076.

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An oblique cutting model is developed to predict the thrust and torque created by the chisel edge of a drill with an arbitrary point geometry. The chisel edge geometry is modeled using a mathematical representation of the flank grinding parameters and the flute geometry. The varying cutting angles at the chisel edge are determined and used to calculate the force contribution of each element using a mechanistic modeling approach. The model is validated for three commercial point geometries—the conical, helical and Racon® drill points. Model simulations match experimental data well for the geome

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Chandrasekharan, V., S. G. Kapoor, and R. E. DeVor. "A Mechanistic Model to Predict the Cutting Force System for Arbitrary Drill Point Geometry." Journal of Manufacturing Science and Engineering 120, no. 3 (1998): 563–70. http://dx.doi.org/10.1115/1.2830160.

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A mechanistic model is developed to predict the forces for arbitrary drill point geometry. The cutting lips are divided into elements and the elemental forces are determined from a fundamental oblique cutting model. A method is developed to parametrically define the cutting lip in three-dimensional space and to determine the oblique cutting parameters (cutting angles and chip thickness) at each element on the cutting lip. The model does not require calibration experiments for each point geometry. The conical drill is used to determine the model coefficients for a tool and workpiece material co

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8

Halen, Pierre. "Paul Aron, Cécile Vanderpelen-Diagre, Vérités et mensonges de la collaboration. Trois écrivains racon." Questions de communication, no. 12 (December 31, 2007): 377–78. http://dx.doi.org/10.4000/questionsdecommunication.2495.

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9

Deep, Aman, Dana Bludau, Marius Welzel, et al. "Natrix2 – Improved amplicon workflow with novel Oxford Nanopore Technologies support and enhancements in clustering, classification and taxonomic databases." Metabarcoding and Metagenomics 7 (October 24, 2023): e109389. https://doi.org/10.3897/mbmg.7.109389.

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Sequencing of amplified DNA is the first step towards the generation of Amplicon Sequence Variants (ASVs) or Operational Taxonomic Units (OTUs) for biodiversity assessment and comparative analyses of environmental communities and microbiomes. Notably, the rapid advancements in sequencing technologies have paved the way for the growing utilization of third-generation long-read approaches in recent years. These sequence data imply increasing read lengths, higher error rates, and altered sequencing chemistry. Likewise, methods for amplicon classification and reference databases have progressed, l

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Dvorianinova, Ekaterina M., Nadezhda L. Bolsheva, Elena N. Pushkova, et al. "Isolating Linum usitatissimum L. Nuclear DNA Enabled Assembling High-Quality Genome." International Journal of Molecular Sciences 23, no. 21 (2022): 13244. http://dx.doi.org/10.3390/ijms232113244.

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High-quality genome sequences help to elucidate the genetic basis of numerous biological processes and track species evolution. For flax (Linum usitatissimum L.)—a multifunctional crop, high-quality assemblies from Oxford Nanopore Technologies (ONT) data were unavailable, largely due to the difficulty of isolating pure high-molecular-weight DNA. This article proposes a scheme for gaining a contiguous L. usitatissimum assembly using Nanopore data. We developed a protocol for flax nuclei isolation with subsequent DNA extraction, which allows obtaining about 5 μg of pure high-molecular-weight DNA

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Sigova, Elizaveta A., Ekaterina M. Dvorianinova, Tatiana A. Rozhmina, et al. "Complete Annotated Genome Assembly of Flax Pathogen Colletotrichum lini." Journal of Fungi 10, no. 9 (2024): 605. http://dx.doi.org/10.3390/jof10090605.

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Colletotrichum lini is a fungal pathogen of flax that can cause significant yield and quality losses. In this work, we obtained the first complete annotated genome assembly of the highly virulent C. lini strain #394-2. The nuclear genome consisted of ten core and two accessory chromosomes and had a length of 53.7 Mb. The mitochondrial genome was 39.1 kb. The assembly was obtained by the Canu–Racon ×2–Medaka–Polca algorithm using Oxford Nanopore Technologies and Illumina data. As a result of the annotation with the Illumina RNA-Seq data, 12,449 genes were identified. Potential signaling protein

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Dvorianinova, Ekaterina M., Elizaveta A. Sigova, Timur D. Mollaev, et al. "Comparative Genomic Analysis of Colletotrichum lini Strains with Different Virulence on Flax." Journal of Fungi 10, no. 1 (2023): 32. http://dx.doi.org/10.3390/jof10010032.

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Colletotrichum lini is a flax fungal pathogen. The genus comprises differently virulent strains, leading to significant yield losses. However, there were no attempts to investigate the molecular mechanisms of C. lini pathogenicity from high-quality genome assemblies until this study. In this work, we sequenced the genomes of three C. lini strains of high (#390-1), medium (#757), and low (#771) virulence. We obtained more than 100× genome coverage with Oxford Nanopore Technologies reads (N50 = 12.1, 6.1, 5.0 kb) and more than 50× genome coverage with Illumina data (150 + 150 bp). Several assemb

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Bigeldiyeva, M. T., V. V. Dyachkov, V. I. Zherebchevsky, Yu A. Zaripova, and A. V. Yushkov. "Route measurements of natural surface radiation background in the Almaty region." Journal of Physics: Conference Series 2155, no. 1 (2022): 012027. http://dx.doi.org/10.1088/1742-6596/2155/1/012027.

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Abstract Measurements of the spatial distribution of radon isotopes were carried out from April 2021 to August 2021 in the foothills of the Trans-Ili Alatau of the Tien Shan in the Almaty region at various heights above sea level: from 500 to 2500 meters. They were carried out using electronic radiometric equipment: beta-dosimeter “RKS-01B-SOLO”; gamma dosimeter “RKS-01G-SOLO”; radiometer of radon and its daughter decay products “RAMON- 02” in the field. As a result, preliminary assessment schemes were built for route measurements of the 222Rn radon isotope, beta and gamma radiation fields fro

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14

Trim, Richard M. "Some Causes of Problems in the Observation of Standard Racon Marine Beacons when Observed by Means of Standard Marine Navigation Radars." Journal of Navigation 46, no. 2 (1993): 275–77. http://dx.doi.org/10.1017/s0373463300011619.

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15

Pak, Yuriy, Dmitriy Pak, Vladimir Matonin, et al. "Study of Radon Radiation in the Area of the Akchatau Polymetallic Mine, Republic of Kazakhstan." Atmosphere 16, no. 7 (2025): 769. https://doi.org/10.3390/atmos16070769.

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The data on the volumetric radon activity of the Akchatau territory were systematized in the context of radioecological safety. Radon (Rn222 and Rn220) and indoor radon (isotopes Po, Pb, and Bi) make a significant contribution to radon radiation in residential and industrial premises. Increased radon concentration in a number of areas is associated with the Akchatau tungsten–molybdenum mine. The source of radon in geological terms is acid leucocratic granites in the northwestern and southeastern parts of the studied territory. Seasonal assessment of radon radiation was carried out using modern

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Warren, René L., Lauren Coombe, Hamid Mohamadi, et al. "ntEdit: scalable genome sequence polishing." Bioinformatics 35, no. 21 (2019): 4430–32. http://dx.doi.org/10.1093/bioinformatics/btz400.

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Abstract Motivation In the modern genomics era, genome sequence assemblies are routine practice. However, depending on the methodology, resulting drafts may contain considerable base errors. Although utilities exist for genome base polishing, they work best with high read coverage and do not scale well. We developed ntEdit, a Bloom filter-based genome sequence editing utility that scales to large mammalian and conifer genomes. Results We first tested ntEdit and the state-of-the-art assembly improvement tools GATK, Pilon and Racon on controlled Escherichia coli and Caenorhabditis elegans sequen

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Lee, Yun Gyeong, Sang Chul Choi, Yuna Kang, Kyeong Min Kim, Chon-Sik Kang, and Changsoo Kim. "Constructing a Reference Genome in a Single Lab: The Possibility to Use Oxford Nanopore Technology." Plants 8, no. 8 (2019): 270. http://dx.doi.org/10.3390/plants8080270.

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The whole genome sequencing (WGS) has become a crucial tool in understanding genome structure and genetic variation. The MinION sequencing of Oxford Nanopore Technologies (ONT) is an excellent approach for performing WGS and it has advantages in comparison with other Next-Generation Sequencing (NGS): It is relatively inexpensive, portable, has simple library preparation, can be monitored in real-time, and has no theoretical limits on reading length. Sorghum bicolor (L.) Moench is diploid (2n = 2x = 20) with a genome size of about 730 Mb, and its genome sequence information is released in the P

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18

Oosterbroek, Saskia, Karlijn Doorenspleet, Reindert Nijland, and Lara Jansen. "Decona: From demultiplexing to consensus for Nanopore amplicon data." ARPHA Conference Abstracts 4 (March 4, 2021): e65029. https://doi.org/10.3897/aca.4.e65029.

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Sequencing of long amplicons is one of the major benefits of Nanopore technologies, as it allows for reads much longer than Illumina. One of the major challenges for the analysis of these long Nanopore reads is the relatively high error rate. Sequencing errors are generally corrected by consensus generation and polishing. This is still a challenge for mixed samples such as metabarcoding environmental DNA, bulk DNA, mixed amplicon PCR's and contaminated samples because sequence data would have to be clustered before consensus generation.To this end, we developed Decona (https://github.com/Saski

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Zaripova, Yuliya, Vyacheslav Dyachkov, Mirgul Bigeldiyeva, Tatyana Gladkikh, and Alexandr Yushkov. "Preliminary Survey of Exposure to Indoor Radon in al-Farabi Kazakh National University, Kazakhstan." Atmosphere 14, no. 10 (2023): 1584. http://dx.doi.org/10.3390/atmos14101584.

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Radon is a major source of naturally occurring radioactivity, and its measurement is considered extremely important in radiation protection, given its association with lung cancer. This pilot study aimed to estimate the annual effective dose received by students and staff based on monitoring data on the concentration of radon in the buildings of al-Farabi Kazakh National University (Almaty, Republic of Kazakhstan), based on the distance to the tectonic fault. The measurements were recorded daily from February 2021 to September 2022 using a RAMON-02 radiometer (SOLO LLP, Almaty, Kazakhstan). Al

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Steinitz, G., and O. Piatibratova. "Radon signals in the Gavnunim intrusion, Makhtesh Ramon, Israel." Geophysical Journal International 180, no. 2 (2010): 651–65. http://dx.doi.org/10.1111/j.1365-246x.2009.04450.x.

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Natho, G. "Duke, J. A.: Handbook of Edible Weeds. VI, 246 S., 100 Abb. CRC Press, Boca Racon, Ann Arbor, Tokyo, 1992. ISBN 0–8493–4225-2. Preis: Hardcover £ 21." Feddes Repertorium 104, no. 7-8 (1993): 468. http://dx.doi.org/10.1002/fedr.4921040708.

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Natho, G. "Duke, J. A.: Handbook of Edible Weeds. VI, 246 S., 100 Abb. CRC Press, Boca Racon, Ann Arbor, Tokyo, 1992. ISBN 0-8493-4225-2. Preis: Hardcover £ 21." Feddes Repertorium 104, no. 7-8 (2008): 468. http://dx.doi.org/10.1002/fedr.19931040708.

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23

Ortega-Recalde, Oscar, Aura M. Echeverri, Rafael Rios, et al. "1442. Acquisition and Transferability Mechanisms of Mercury Resistance Genes in Latin-American Staphylococcus aureus Strains." Open Forum Infectious Diseases 7, Supplement_1 (2020): S724—S725. http://dx.doi.org/10.1093/ofid/ofaa439.1623.

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Abstract Background Latin-American (LA) countries are among the largest mercury (Hg) polluters in the world. Fittingly, a significant high frequency (&gt;50%) of Hg resistance genes (MRG) has been observed in LA MRSA genomes, including USA300-LV clone, which contains the genomic element COMER, encoding for copper and Hg resistance genes adjacent to SCCmecIVc/E. Co-selection of MRG and antibiotic resistance genes may be facilitated by shared transferable genetic elements, nevertheless, analyses of the genetic MRG context in strains other than USA300-LV are lacking. In this study, we aimed t

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Senol Cali, Damla, Jeremie S. Kim, Saugata Ghose, Can Alkan, and Onur Mutlu. "Nanopore sequencing technology and tools for genome assembly: computational analysis of the current state, bottlenecks and future directions." Briefings in Bioinformatics 20, no. 4 (2018): 1542–59. http://dx.doi.org/10.1093/bib/bby017.

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Abstract Nanopore sequencing technology has the potential to render other sequencing technologies obsolete with its ability to generate long reads and provide portability. However, high error rates of the technology pose a challenge while generating accurate genome assemblies. The tools used for nanopore sequence analysis are of critical importance, as they should overcome the high error rates of the technology. Our goal in this work is to comprehensively analyze current publicly available tools for nanopore sequence analysis to understand their advantages, disadvantages and performance bottle

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Castellví i Piulachs, Josefina. "Ramon Margalef López." Scientia Marina 76, no. 2 (2012): 217–20. http://dx.doi.org/10.3989/scimar.03658.04a.

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Čeliković, Igor, Gordana Pantelić, Ivana Vukanac, et al. "Overview of Radon Flux Characteristics, Measurements, Models and Its Potential Use for the Estimation of Radon Priority Areas." Atmosphere 13, no. 12 (2022): 2005. http://dx.doi.org/10.3390/atmos13122005.

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Radon flux measurements provide information about how much radon rises from the ground toward the atmosphere, thus, they could serve as good predictors of indoor radon concentrations. Although there are many different mapping methods with many different input data, radon flux data are generally missing and are not included for the delineation of radon priority areas (RPA). The aim of this literature review is to investigate to what extent radon flux was used, or could be used, for the delineation of RPAs. Numerous factors influencing radon flux were identified, but quantifying their contributi

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Chen, Y. Y., Y. P. Zhang, Y. Liu, et al. "A study on the radon removal performance of low background activated carbon." Journal of Instrumentation 17, no. 02 (2022): P02003. http://dx.doi.org/10.1088/1748-0221/17/02/p02003.

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Abstract Radon and radon daughters pose significant backgrounds to rare-event searching experiments. Activated carbon, which has very strong adsorption capacity for radon, can be used for radon removal and radon enrichment. The internal 226Ra concentration ultimately limits its radon enrichment ability. In order to measure the intrinsic background and study the radon adsorption capability of Saratech activated carbon at various temperatures, a radon-emanation measurement system with a high-sensitivity radon detector and an adsorption-performance research-system have been developed. In this pap

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Lee, Young Sub, Yong Hee Lee, and Yong Cheol Kim Gyu-Sik Kim. "Performance Evaluation of Radon Mitigating Materials for Building a Radon Resistant Dwelling." International Journal of Trend in Scientific Research and Development Volume-2, Issue-4 (2018): 555–60. http://dx.doi.org/10.31142/ijtsrd14140.

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Li, Huiying, Zhongkai Fan, Shuaibin Liu, et al. "A novel method to simulate radon exhalation rate with a solid Rn-222 source." Journal of Instrumentation 19, no. 07 (2024): T07006. http://dx.doi.org/10.1088/1748-0221/19/07/t07006.

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Abstract Radon exhaled from rocks, building materials, and soil can be harmful to human health, so it is necessary to measure radon and its exhalation rate. In this paper, a novel method is proposed to simulate radon exhalation from different medium surface by using a solid Rn-222 source, and the radon exhalation rate can be adjusted by replacing radon accumulation chambers with different bottom areas. Firstly, an experiment was done to determine the activity of the Rn-222 source, and then the theoretical radon exhalation rate can be quickly calculated from the relationship between the radon s

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Gulabyants, Loren, Mihail Livshits, Alexandr Kalaydo, and Konstantin Kovler. "Resistance of building foundation to radon penetration." Journal of Building Physics 43, no. 5 (2019): 456–73. http://dx.doi.org/10.1177/1744259119844533.

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Two-dimensional model of the steady-state diffusion radon transport from the soil to the ground floor of the building is developed. Radon concentration distributions in the soil and the living space are calculated at different foundation geometries. The model considers radon entry from enclosing structures, outside air, and diffusion from the soil. The radon field under the building is described. The quantitative criteria for the resistance of the building foundation to radon penetration from the soil are defined. It is found that the resistance of the ground slab to radon penetration and rado

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Valdbjørn Rasmussen, Torben, and Thomas Cornelius. "Use of radon barriers to reach an acceptable radon level." E3S Web of Conferences 172 (2020): 05003. http://dx.doi.org/10.1051/e3sconf/202017205003.

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A method is presented for theoretically estimating the necessary airtightness of a radon barrier. Radon barriers are used to balance the indoor radon concentration. To balance radon at an acceptable level, for a given ventilation rate for indoor air, a barrier must fulfil the requirements for airtightness and the indoor-air radon penetration from the soil, which is determined by the radon concentration in the soil gas. The method identifies the optimal radon barrier for a building. Ten different radon barriers are evaluated. Barriers include system solutions based on materials such as bitumen-

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Maciejewski, P., and A. Kowalska. "Two sides of radon - a radioactive and healing component of water and air." IOP Conference Series: Earth and Environmental Science 942, no. 1 (2021): 012022. http://dx.doi.org/10.1088/1755-1315/942/1/012022.

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Abstract This work presents two sides of radon - a radioactive, toxic element which has healing properties. Authors in this work present selected data about radon measurements in medicinal waters commonly used for radon therapy, to describe a phenomenon of radiation hormesis and healing properties of radon waters. From the other side, authors present the data about radon as a component of the atmosphere: radon-enriched air in health resorts, buildings (indoor radon). Authors present advantages and disadvantages of radon occurrence in human environment.

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Műllerová, Monika, Jadwiga Mazur, Pavol Blahušiak, et al. "Preliminary results of radon survey in thermal spas in V4 countries." Nukleonika 61, no. 3 (2016): 303–6. http://dx.doi.org/10.1515/nuka-2016-0050.

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Abstract Radon concentration was measured in 11 thermal spas in Visegrad countries (Czech Republic, Hungary, Poland, and Slovakia). The results showed that in 84% of spas radon activity concentration is less than 400 Bq·m−3. However, areas with radon activity concentration exceeding 1000 Bq·m−3 were found in the Czech Republic and Slovakia as well. Preliminary analyses indicated that the highest radon activities in spas were found in places with thermal pools. Radon concentration in waters used in spas ranged from 0.5 Bq/l to 384 Bq/l. The influence of radon activity concentration in water on

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Tsapalov, Andrey, Konstantin Kovler, Sergey Kiselev, Ilia Yarmoshenko, Robert Bobkier, and Petr Miklyaev. "IAEA Safety Guides vs. Actual Challenges for Design and Conduct of Indoor Radon Surveys." Atmosphere 16, no. 3 (2025): 253. https://doi.org/10.3390/atmos16030253.

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An analysis of the international radon regulatory framework identified actual challenges for the design and conduct of indoor radon surveys, though there is little discussion on this issue in the radon community. The main challenges hindering the development of radon regulation on an international scale, particularly in indoor radon surveys include the following: (i) responsibility for indoor radon testing and mitigation, (ii) excessive focus on Radon Priority Areas, (iii) the role of temporal uncertainty in indoor radon testing, (iv) the standardization of indoor radon measurements, and (v) t

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Ye, Lin. "Analysis of Factors Affecting Indoor Radon Concentration in Zhuji City." Scientific Journal of Technology 7, no. 3 (2025): 237–42. https://doi.org/10.54691/4pfp8a54.

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At present, indoor radon pollution has become the focus of global environmental science and public health research. This study measured the indoor radon and soil radon concentrations in Zhuji City and analyzed the various factors affecting indoor radon concentrations. The research results show that the indoor radon concentration in Zhuji City is significantly lower than the national safety standard limit. The indoor radon concentration is affected by factors such as building age, floor height, seasonal changes and ventilation conditions. In addition, the study also found that there is a certai

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Čeliković, Igor, Gordana Pantelić, Ivana Vukanac, et al. "Outdoor Radon as a Tool to Estimate Radon Priority Areas—A Literature Overview." International Journal of Environmental Research and Public Health 19, no. 2 (2022): 662. http://dx.doi.org/10.3390/ijerph19020662.

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Doses from the exposure to outdoor radon are typically an order of magnitude smaller than those from indoor radon, causing a greater interest on investigation of the latter for radiation protection issues. As a consequence, assessment of radon priority areas (RPA) is mainly based on indoor radon measurements. Outdoor radon measurements might be needed to guarantee a complete estimation of radiological risk and may help to improve the estimation of RPA. Therefore, authors have analysed the available literature on outdoor radon to give an overview of outdoor radon surveys and potential correlati

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Jiang, Fu Liang, Zeng Guang Yang, Xiang Wu Qi, and Xiang Yang Li. "The Indoor Radon Concentration Measurement and Analysis in a University and its Adjacent Areas." Applied Mechanics and Materials 737 (March 2015): 512–15. http://dx.doi.org/10.4028/www.scientific.net/amm.737.512.

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Radon is a radioactive gas, high concentrations of radon in the environment can cause lung cancer, leukemia and other diseases. In this paper, indoor radon concentration in different places were measured and analyzed by using the RAD-7 radon monitor in a university and its adjacent areas. On-site measurements show that within 24 hours the indoor radon concentration versus time has certain regularity, different interior architectural decoration materials has a certain influence on the radon concentration, the radon concentrations in long confined spaces are significantly higher than those place

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Hofmann, Werner, Herbert Lettner, and Alexander Hubmer. "Dosimetric Comparison of Exposure Pathways to Human Organs and Tissues in Radon Therapy." International Journal of Environmental Research and Public Health 18, no. 20 (2021): 10870. http://dx.doi.org/10.3390/ijerph182010870.

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Three therapeutic applications are presently prescribed in the radon spas in Gastein, Austria: exposure to radon in a thermal bath, exposure to radon vapor in an exposure chamber (vapor bath), and exposure to radon in the thermal gallery, a former mine. The radiological exposure pathways to human organs and tissues in these therapeutic radon applications are inhalation of radon and radon progeny via the lungs, radon transfer from water or air through the skin, and radon-progeny deposition on the skin in water or air. The objectives of the present study were to calculate radon and radon-progeny

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Vasilyev, A., I. Yarmoshenko, A. Onishchenko, et al. "RADON MEASUREMENTS IN BIG BUILDINGS: PILOT STUDY IN RUSSIA." Radiation Protection Dosimetry 191, no. 2 (2020): 214–18. http://dx.doi.org/10.1093/rpd/ncaa150.

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Abstract Detailed analysis of indoor radon concentration distribution by floors was conducted in four children institutions, one office building and two residential houses in Russian cities to develop approaches to draw up a program of radon survey for big buildings. Higher variability of radon concentration was found in high geogenic radon potential (GRP) area when the soil is the main source of radon. No essential dependence of radon concentration on the floor in high-rise buildings was found in low GRP area. The number of required radon measurements is estimated using obtained characteristi

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Yin, Yanmei. "Analysis of Indoor Radon Concentration Levels and Influencing Factors in Kunshan." Scientific Journal of Technology 5, no. 12 (2023): 43–48. http://dx.doi.org/10.54691/q1kf5b47.

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Radon is a natural radioactive gas widely existing, in order to study the indoor radon level and influencing factors in Kunshan City, the indoor radon concentration of three buildings was analyzed. It was found that all of them met the indoor radon concentration limit specified in the national standard, and the indoor radon concentration was mainly related to soil radon concentration, indoor ventilation and climate. Indoor radon can be controlled from the following points: (1) While building a new building, test the radon concentration in the soil and try to avoid areas with high concentration

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Kojo, Katja, and Päivi Kurttio. "Indoor Radon Measurements in Finnish Daycare Centers and Schools—Enforcement of the Radiation Act." International Journal of Environmental Research and Public Health 17, no. 8 (2020): 2877. http://dx.doi.org/10.3390/ijerph17082877.

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Background: Indoor radon exposure is the second leading cause of lung cancer. Finnish radiation legislation obligates employers to measure indoor radon concentrations in workplaces, including schools and daycare centers, if they are in radon prone areas. Surveillance campaigns were conducted to ensure that the required radon measurements were performed and to gain knowledge on current indoor radon levels in daycare centers and schools. Methods: Daycare centers located in the high-radon risk municipalities were identified. Schools where indoor radon level measurements were obligatory but not pe

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Tomic-Petrovic, Natasa. "Radon – Risks and Solutions." International Journal of Scientific Research 3, no. 6 (2012): 454–56. http://dx.doi.org/10.15373/22778179/june2014/155.

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Bang, Jang-Kyu, and Gun-Young Lee. "Estimating Maintenance Cost of RAPCON at Air Force Base." Journal of Advanced Navigation Technology 20, no. 6 (2016): 511–18. http://dx.doi.org/10.12673/jant.2016.20.6.511.

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Bossew, Peter. "Local probability of indoor radon concentration to exceed the threshold estimated from geogenic radon potential." Nuclear Technology and Radiation Protection 32, no. 1 (2017): 70–76. http://dx.doi.org/10.2298/ntrp1701070b.

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Indoor radon has been recognized as an important air pollutant. Based on epidemiological evidence, it is estimated that indoor radon is the second cause of lung cancer after smoking. As a consequence, one tries to limit exposure through regulations concerning the remediation of the existing and prevention of future exposure. In this context, an essential task is the delineation of areas in which it can be expected with certain confidence that time-averaged indoor radon concentrations in dwellings and workplaces exceed the reference level. These are called radon priority areas to denote that th

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Moon, Sunghwan. "Inversion Formula for a Radon-Type Transform Arising in Photoacoustic Tomography with Circular Integrating Detectors." Advances in Mathematical Physics 2018 (July 3, 2018): 1–4. http://dx.doi.org/10.1155/2018/1727582.

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This paper is devoted to a Radon-type transform arising in a version of Photoacoustic Tomography that uses integrating circular detectors. The Radon-type transform that arises can be decomposed into the known Radon-type transforms: the spherical Radon transform and the sectional Radon transform. An inversion formula is obtained by combining existing inversion formulas for the above two Radon-type transforms.

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Cross, F. T. "Radon Inhalation Studies in Animals." Radiation Protection Dosimetry 24, no. 1-4 (1988): 463–66. http://dx.doi.org/10.1093/oxfordjournals.rpd.a080324.

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Abstract A summary of updated biological effects data resulting from chronic radon inhalation exposures of animals is presented. Emphasis is placed on the carcinogenic effects of radon and radon decay products, including the influences of radon progeny exposure rate, unattached fraction and disequilibrium, and co-exposures to other pollutants. Plausible values are provided for the radon (radon progeny) lifetime lung cancer risk coefficients.

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Luca, Aurelian, Ileana Rădulescu, Mihail-Răzvan Ioan, et al. "Recent Progress in Radon Metrology at IFIN-HH, Romania." Atmosphere 13, no. 3 (2022): 363. http://dx.doi.org/10.3390/atmos13030363.

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The practical implementation of the European Council Directive no. 2013/59/EURATOM in Romania requires reliable indoor measurements of the radon (222Rn) activity concentration in air. In Romania, several Testing Laboratories were designated for radon activity and/or radon activity concentration in air measurements by the Romanian National Commission for Nuclear Activities Control (CNCAN). The calibration of the instruments used for indoor radon activity concentration measurements is very important. IFIN-HH, through its Ionizing Radiation Metrology Laboratory (LMRI), performed advanced research

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Benjamin Poku and Sayed Hussaini. "Radon in child care centers: An examination of state laws and regulations in the United States." GSC Advanced Research and Reviews 7, no. 3 (2021): 005–17. http://dx.doi.org/10.30574/gscarr.2021.7.3.0101.

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Radon is the second leading cause of lung cancer after smoking in the United States (US); however, there is a lack of state policies and regulations to address radon gas exposure. This study aimed to explain if state radon legislation for child care centers is associated with the percent of counties within the state in radon zone 1(above 4 pCi/L). The research method was secondary analysis. Data were obtained from EPA radon website, journal resources, state laws and regulations, and official state government websites. The existing radon laws were assessed based on the EPA radon zones. Then, in

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Stojanovska, Zdenka, Kremena Ivanova, Peter Bossew, et al. "Prediction of long-term indoor radon concentration based on short-term measurements." Nuclear Technology and Radiation Protection 32, no. 1 (2017): 77–84. http://dx.doi.org/10.2298/ntrp1701077s.

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We present a method for the estimation of annual radon concentration based on short-term (three months) measurements. The study involves results from two independent sets of indoor radon concentration measurements performed in 16 cities of the Republic of Macedonia. The first data set contains winter and annual radon concentration obtained during the National survey in 2010 and the second, contains only the radon concentration measured during the winter of 2013. Both data sets pertain to radon concentration from the same cities and have been measured applying the same methodology in ground flo

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Benjamin, Poku, and Hussaini Sayed. "Radon in child care centers: An examination of state laws and regulations in the United States." GSC Advanced Research and Reviews 7, no. 3 (2021): 005–17. https://doi.org/10.5281/zenodo.5052633.

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Radon is the second leading cause of lung cancer after smoking in the United States (US); however, there is a lack of state policies and regulations to address radon gas exposure. This study aimed to explain if state radon legislation for child care centers is associated with the percent of counties within the state in radon zone 1(above 4 pCi/L). The research method was secondary analysis. Data were obtained from EPA radon website, journal resources, state laws and regulations, and official state government websites. The existing radon laws were assessed based on the EPA radon zones. Then, in

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