Subjects -> CHEMISTRY (Total: 928 journals)     - ANALYTICAL CHEMISTRY (59 journals)    - CHEMISTRY (661 journals)    - CRYSTALLOGRAPHY (23 journals)    - ELECTROCHEMISTRY (28 journals)    - INORGANIC CHEMISTRY (45 journals)    - ORGANIC CHEMISTRY (47 journals)    - PHYSICAL CHEMISTRY (65 journals) PHYSICAL CHEMISTRY (65 journals)
 Showing 1 - 64 of 64 Journals sorted alphabetically ACS Central Science       (Followers: 9) ACS Physical Chemistry Au       (Followers: 7) ACS Sensors       (Followers: 7) Acta Physico-Chimica Sinica Advances in Image and Video Processing       (Followers: 20) Advances in Physical Chemistry       (Followers: 13) Annual Review of Physical Chemistry       (Followers: 14) Applied Materials Today       (Followers: 1) Biophysical Chemistry       (Followers: 8) Catalysis, Structure & Reactivity       (Followers: 2) Chemical Physics       (Followers: 18) Chemical Physics Letters       (Followers: 17) Chemistry and Physics of Lipids       (Followers: 2) Chinese Journal of Chemical Physics       (Followers: 1) Colloids and Surfaces A: Physicochemical and Engineering Aspects       (Followers: 6) Current Physical Chemistry       (Followers: 1) Doklady Physical Chemistry EPJ B - Condensed Matter and Complex Systems       (Followers: 1) EPJ E - Soft Matter and Biological Physics       (Followers: 3) Friction       (Followers: 4) Geochemistry, Geophysics, Geosystems       (Followers: 35) Glass Physics and Chemistry       (Followers: 1) Handbook on the Physics and Chemistry of Rare Earths       (Followers: 2) Indian Journal of Biochemistry and Biophysics (IJBB)       (Followers: 3) Indian Journal of Chemistry - Section A       (Followers: 9) International Journal of Polymeric Materials       (Followers: 6) International Journal of Quantum Chemistry       (Followers: 5) International Reviews in Physical Chemistry       (Followers: 3) Journal of Biophysical Chemistry       (Followers: 3) Journal of Chemical Physics       (Followers: 36) Journal of Chromatographic Science       (Followers: 15) Journal of Macromolecular Science, Part B: Physics       (Followers: 2) Journal of Physical and Chemical Reference Data       (Followers: 4) Journal of Physical Chemistry A       (Followers: 28) Journal of Physical Chemistry B       (Followers: 48) Journal of Physical Chemistry C       (Followers: 36) Journal of Physical Chemistry Letters       (Followers: 26) Journal of Physics and Chemistry of Solids       (Followers: 3) Journal of Quantum Chemistry       (Followers: 1) Journal of Radiation Research       (Followers: 3) Macromolecular Chemistry and Physics       (Followers: 2) Molecular Physics: An International Journal in the Field of Chemical Physics       (Followers: 24) Nature Communications       (Followers: 323) Open Journal of Physical Chemistry Physical Chemistry       (Followers: 2) Physical Chemistry Chemical Physics       (Followers: 29) Physical Chemistry Research       (Followers: 1) Physical Review A       (Followers: 23) Physical Review Accelerators and Beams       (Followers: 3) Physical Review B       (Followers: 33) Physical Review D       (Followers: 11) Physical Review E       (Followers: 41) Physical Review Letters       (Followers: 133) Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B Physics and Chemistry of Liquids: An International Journal Physics and Chemistry of the Earth, Parts A/B/C       (Followers: 10) Plasma Processes and Polymers       (Followers: 2) Protection of Metals and Physical Chemistry of Surfaces       (Followers: 15) Revista Fuentes Russian Journal of Physical Chemistry A, Focus on Chemistry Russian Journal of Physical Chemistry B, Focus on Physics Solid State Ionics       (Followers: 5) The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics       (Followers: 29) The European Physical Journal Special Topics       (Followers: 1)
Similar Journals
 Journal of Radiation ResearchJournal Prestige (SJR): 0.734 Citation Impact (citeScore): 2Number of Followers: 3     Open Access journal ISSN (Print) 0449-3060 - ISSN (Online) 1349-9157 Published by Oxford University Press  [419 journals]
• 3D reconstructed brain images reveal the possibility of the ogg1 gene to
suppress the irradiation-induced apoptosis in embryonic brain in medaka
(Oryzias latipes)

• Authors: Yasuda T; Li D, Sha E, et al.
Pages: 319 - 330
Abstract: AbstractThe accumulation of oxidative DNA lesions in neurons is associated with neurodegenerative disorders and diseases. Ogg1 (8-oxoG DNA glycosylase-1) is a primary repair enzyme to excise 7,8-dihydro-8-oxoguanine (8-oxoG), the most frequent mutagenic base lesion produced by oxidative DNA damage. We have developed ogg1-deficient medaka by screening with a high resolution melting (HRM) assay in Targeting-Induced Local Lesions In Genomes (TILLING) library. In this study, we identified that ogg1-deficient embryos have smaller brains than wild-type during the period of embryogenesis and larvae under normal conditions. To reveal the function of ogg1 when brain injury occurs during embryogenesis, we examined the induction of apoptosis in brains after exposure to gamma-rays with 10 Gy (137Cs, 7.3 Gy/min.) at 24 h post-irradiation both in wild-type and ogg1-deficient embryos. By acridine orange (AO) assay, clustered apoptosis in irradiated ogg1-deficient embryonic brains were distributed in a similar manner to those of irradiated wild-type embryos. To evaluate possible differences of gamma-ray induced apoptosis in both types of embryonic brains, we constructed 3D images of the whole brain based on serial histological sections. This analysis identified that the clustered apoptotic volume was about 3 times higher in brain of irradiated ogg1-deficient embryos (n = 3) compared to wild-type embryos (n = 3) (P = 0.04), suggesting that irradiation-induced apoptosis in medaka embryonic brain can be suppressed in the presence of functional ogg1. Collectively, reconstruction of 3D images can be a powerful approach to reveal slight differences in apoptosis induction post-irradiation.
PubDate: Sat, 12 Mar 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac005
Issue No: Vol. 63, No. 3 (2022)

• Overcoming radio-resistance in esophageal squamous cell carcinoma via
hypermethylation of PIK3C3 promoter region mediated by KDM5B loss

• Authors: Wang X; Gu M, Ju Y, et al.
Pages: 331 - 341
PubDate: Fri, 25 Mar 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac004
Issue No: Vol. 63, No. 3 (2022)

• Interaction of curcumin with glioblastoma cells via high and low linear

• Authors: Kim J; Jung C, Lee W, et al.
Pages: 342 - 353
PubDate: Fri, 22 Apr 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac016
Issue No: Vol. 63, No. 3 (2022)

• Measurements and determinants of children’s exposure to background gamma

• Authors: Folly C; Mazzei-Abba A, Coste A, et al.
Pages: 354 - 363
Abstract: AbstractEpidemiological studies of children’s cancer risks associated with background gamma radiation exposure have used geographic exposure models to estimate exposure at their locations of residence. We measured personal exposure to background gamma radiation, and we investigated the extent to which it was associated with children’s whereabouts. We collected data on whereabouts and exposure to background gamma radiation over a 5-day period among children aged 4–15 years in Switzerland. We used D-Shuttle dosimeters to measure children’s exposure, and we asked parents to write their children’s activities in diaries. We used Poisson mixed-effects and linear regression models to investigate the association of hourly and overall doses, respectively, with children’s reported whereabouts. During the observed time, 149 participating children spent 66% indoors at home; 19% indoors away from home; and 15% outdoors. The mean personal exposure was 85.7 nSv/h (range 52.3 nSv/h–145 nSv/h). Exposure was 1.077 (95% CI 1.067, 1.087) times higher indoors than outdoors and varied by building material and (predicted) outdoor dose rates. Our study provides detailed information about children’s patterns of exposure to background gamma radiation in Switzerland. Dwelling building materials and outdoor dose rates are important determinants of children’s exposure. Future epidemiological studies may benefit from including information about building materials.
PubDate: Mon, 28 Mar 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac006
Issue No: Vol. 63, No. 3 (2022)

• Assessment of internal exposure to 131I and short-lived radioiodine
isotopes and associated uncertainties in the Ukrainian cohort of persons
exposed in utero

• Authors: Masiuk S; Chepurny M, Buderatska V, et al.
Pages: 364 - 377
Abstract: AbstractThis study revised the thyroid doses for 2582 Ukrainian in utero cohort members exposed to Chornobyl fallout (the Ukrainian in utero cohort) based on revision of: (i) 131I thyroid activity measured in the Ukrainian population, (ii) thyroid dosimetry system for entire Ukraine, and (iii) 131I ground deposition densities in Ukraine. Other major improvements included: (i) assessment of uncertainties in the thyroid doses considering shared and unshared error, and (ii) accounting for intake of short-lived radioisotopes of tellurium and iodine (132Te+132I and 133I). Intake of 131I was the major pathway for thyroid exposure, its median contribution to the thyroid dose was 97.4%. The mean prenatal and postnatal thyroid dose from 131I was 87 mGy (median = 17 mGy), higher than previous deterministic dose of 72 mGy (median = 12 mGy). For 39 individuals (1.5%) the dose exceeded 1.0 Gy, while the highest dose among the cohort members was 2.7 Gy. The geometric standard deviation (GSD) of 1000 individual stochastic doses varied from 1.9 to 5.2 with a mean of 3.1 and a median of 3.2. The lowest uncertainty (mean GSD = 2.3, median GSD = 2.2) was found for the subjects whose mothers were measured for 131I thyroid activity, while for individuals, whose mothers were not measured, the mean and median GSDs were 3.4. Uncertainties in thyroid doses were driven by shared errors associated with the parameters of the ecological model.
PubDate: Thu, 17 Mar 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac007
Issue No: Vol. 63, No. 3 (2022)

• Oxidation of ferumoxytol by ionizing radiation releases iron. An electron
paramagnetic resonance study

• Authors: Petronek M; Spitz D, Buettner G, et al.
Pages: 378 - 384
Abstract: AbstractFerumoxytol (FMX) is an iron oxide nanoparticle that is FDA approved for the treatment of iron deficiency anemia. FMX contains an Fe3O4 core. Currently, the redox chemistry of Fe3O4 nanoparticles remains relatively unexplored. FMX has recently gained interest as an anti-cancer agent. Ionizing radiation (IR) is a treatment modality employed to treat several types of cancer. Utilizing electron paramagnetic resonance (EPR) spectroscopy, we found that the products produced from the radiolysis of water can oxidize the Fe3O4 core of FMX. Because of the limited diffusion of the HO2• and HO• produced, these highly oxidizing species have little direct effect on FMX oxidation. We have determined that H2O2 is the primary oxidant of FMX. In the presence of labile Fe2+, we found that reducing species generated from the radiolysis of H2O are able to reduce the Fe3+ sites of the Fe3O4 core. Importantly, we also have shown that IR stimulates the release of ferric iron from FMX. Because of its release of iron, FMX may serve as an adjuvant to enhance radiotherapy.
PubDate: Thu, 17 Mar 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac008
Issue No: Vol. 63, No. 3 (2022)

• Development of PHITS graphical user interface for simulation of positron
emitting radioisotopes production in common biological materials during
proton therapy

• Authors: Shahmohammadi Beni M; Yu K, Islam M, et al.
Pages: 385 - 392
Abstract: AbstractThe Monte Carlo (MC) method is a powerful tool for modeling nuclear radiation interaction with matter. A variety of MC software packages has been developed, especially for applications in radiation therapy. Most widely used MC packages require users to write their own input scripts for their systems, which can be a time consuming and error prone process and requires extensive user experience. In the present work, we have developed a graphical user interface (GUI) bundled with a custom-made 3D OpenGL visualizer for PHITS MC package. The current version focuses on modeling proton induced positron emitting radioisotopes, which in turn can be used for verification of proton ranges in proton therapy. The developed GUI program does not require extensive user experience. The present open-source program is distributed under GPLv3 license that allows users to freely download, modify, recompile and redistribute the program.
PubDate: Mon, 28 Mar 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac010
Issue No: Vol. 63, No. 3 (2022)

• Profile analysis of adverse events after boron neutron capture therapy for
head and neck cancer: a sub-analysis of the JHN002 study

• Authors: Hirose K; Sato M, Kato T, et al.
Pages: 393 - 401
PubDate: Wed, 06 Apr 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac012
Issue No: Vol. 63, No. 3 (2022)

• Japanese Society for Radiation Oncology Consensus Guidelines of combined
intracavitary and interstitial brachytherapy for gynecological cancers

• Authors: Murakami N; Ohno T, Toita T, et al.
Pages: 402 - 411
Abstract: AbstractIt has been postulated that the combination of intracavitary and interstitial brachytherapy (IC/IS) is effective and safe for large and irregularly shaped uterine cervical cancer patients. However, due to its invasiveness compared to conventional intracavitary brachytherapy (ICBT), it has to be said that the implementation speed of IC/IS is slow. Until now, there have been no guidelines for required equipment, human resources, and procedural guide focusing solely on IC/IS. The purpose of this guideline is to provide radiation oncologists and medical physicists who wish to start IC/IS with practical and comprehensive guidance for a safe IC/IS introduction and to help accelerate the spread of the utilization of IC/IS nationwide. This is the English translation of the Japanese IC/IS Guidelines, and it was created in an effort to share the Japanese approach to the management of locally advanced uterine cervical cancer worldwide.
PubDate: Mon, 28 Mar 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac011
Issue No: Vol. 63, No. 3 (2022)

• An Asian multi-national multi-institutional retrospective study comparing
intracavitary versus the hybrid of intracavitary and interstitial
brachytherapy for locally advanced uterine cervical carcinoma

• Authors: Murakami N; Ando K, Murata M, et al.
Pages: 412 - 427
PubDate: Fri, 22 Apr 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac014
Issue No: Vol. 63, No. 3 (2022)

• Development and dosimetric verification of 3D customized bolus in head and

• Authors: Chatchumnan N; Kingkaew S, Aumnate C, et al.
Pages: 428 - 434
Abstract: AbstractThe commercial flat bolus cannot form perfect contact with the irregular surface of the patient’s skin, resulting in an air gap. The purpose of this study was to evaluate the feasibility of using a 3D customized bolus from silicone rubber. The silicone rubber boluses were studied in basic characteristics. The 3D customized bolus was fabricated at the nose, cheek and neck regions. The point dose and planar dose differences were evaluated by comparing with virtual bolus. The hardness, thickness, density, Hounsfield unit (HU) and dose attenuation of the customized bolus were quite similar to a commercial bolus. When a 3D customized bolus was placed on the RANDO phantom, it can significantly increase buildup region doses and perfectly fit against the irregular surface shape. The average point dose differences of 3D customized bolus were −1.1%, while the commercial bolus plans showed −1.7%. The average gamma results for planar dose differences comparison of 3D customized bolus were 93.9%, while the commercial bolus plans were reduced to 91.9%. Overall, A silicone rubber bolus produced the feasible dosimetric properties and could save cost compared to a commercial bolus. The 3D printed customized bolus is a good buildup material and could potentially replace and improve treatment efficiency.
PubDate: Thu, 14 Apr 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac013
Issue No: Vol. 63, No. 3 (2022)

• Evaluation of the detection accuracy of set-up for various treatment sites
using surface-guided radiotherapy system, VOXELAN: a phantom study

• Authors: Saito M; Ueda K, Suzuki H, et al.
Pages: 435 - 442
Abstract: AbstractThe purpose of this study is to evaluate the detection accuracy of a 3-dimensional (3D) body scanner, VOXELAN, in surface-guided radiotherapy (SGRT) of each part of the human body using a whole-body human phantom. We used A Resusci Anne was used as the whole-body phantom. The detection accuracy of VOXELAN in a radiotherapy treatment room with a linear accelerator (LINAC) was evaluated for two reference images: reconstruction of the planning computed tomography (CT) image (CT reference) and scanning by VOXELAN before the treatment (scan reference). The accuracy of the translational and rotational directions was verified for four treatment sites (open face shell, breast, abdomen, and arm), using the magnitude of the 6D robotic couch movement as the true value. Our results showed that the detection accuracy improved as the displacement from the reference position decreased for all the sites. Using the scan reference, the average accuracy of the translational and rotational axes was within 1.44 mm and 0.41°, respectively, for all sites except the arms. Similarly, using the CT reference, the average accuracy was within 2.45 mm and 1.35°, respectively. Additionally, it was difficult for both reference images to recognize misalignment of the arms. In conclusion we discovered that VOXELAN achieved a high detection accuracy for the head with an open face shell, chest, and abdomen, indicating that the system is useful in a clinical setting. However, it is necessary to pay attention to location matching for areas with few features, such as surface irregularities and potential errors, when the reference image is created from CT.
PubDate: Mon, 25 Apr 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac015
Issue No: Vol. 63, No. 3 (2022)

• Quantifying the dosimetric effects of neck contour changes and setup
errors on the spinal cord in patients with nasopharyngeal carcinoma:
establishing a rapid estimation method

• Authors: Li Y; Wei Z, Liu Z, et al.
Pages: 443 - 451
Abstract: AbstractThe purpose of this study was to quantify the effect of neck contour changes and setup errors on spinal cord (SC) doses during the treatment of nasopharyngeal carcinoma (NPC) and to establish a rapid dose estimation method. The setup errors and contour changes in 60 cone-beam computed tomography (CBCT) images of 10 NPC patients were analysed in different regions of the neck (C1–C3, C4–C5 and C6–C7). The actual delivered dose to the SC was calculated using the CBCT images, and univariate simulations were performed using the planning CT to evaluate the dose effects of each factor, and an index ${\mathrm{Dmax}}_{\mathrm{displaced}}$ was introduced to estimate the SC dose. Compared with the planned dose, the mean (maximum) Dmax increases in the C1–C3, C4–C5 and C6–C7 regions of the SC were 2.1% (12.3%), 1.8% (8.2%) and 2.5% (9.2%), respectively. The simulation results showed that the effects of setup error in the C1–C3, C4–C5 and C6–C7 regions were 1.5% (9.7%), 0.9% (8.2%) and 1.3% (6.3%), respectively, and the effects of contour change were 0.4% (1.7%), 0.7% (2.5%) and 1.5% (4.9%), respectively. The linear regression model can be used to estimate the dose effect of contour changes (R2 > 0.975) and setup errors (R2 = 0.989). Setup errors may lead to a significant increase in the SC dose in some patients. This study established a rapid dose estimation method, which is of great significance for the daily dose evaluation and the adaptive re-planning trigger of the SC.
PubDate: Sun, 03 Apr 2022 00:00:00 GMT
DOI: 10.1093/jrr/rrac009
Issue No: Vol. 63, No. 3 (2022)

JournalTOCs
School of Mathematical and Computer Sciences
Heriot-Watt University
Edinburgh, EH14 4AS, UK
Email: journaltocs@hw.ac.uk
Tel: +00 44 (0)131 4513762