Arab Journal of Nuclear Sciences and Applications最新文献_第8页

Modulatory impact of Ebselen against Diethylnitrosamine initiated Hepatocarcinogenesis in rats. Ebselen对二乙基亚硝胺引发的大鼠肝癌发生的调节作用。

Arab Journal of Nuclear Sciences and Applications Pub Date : 2023-01-26 DOI: 10.21608/ajnsa.2022.156600.1627

Noura Marrouf Arafa, Eman H. Kandil, D. Ibrahim, A. Nada, Nour El-Din A Mohammed

引用次数: 0

Gamma Radiation Absorption Of (Al ,Cu, Pb) Alloys (Al,Cu, Pb)合金的伽马辐射吸收

Arab Journal of Nuclear Sciences and Applications Pub Date : 2023-01-26 DOI: 10.21608/ajnsa.2022.160849.1631

Laith Najam, Karam Abd Al- Aziz, M. Hamood

引用次数: 0

An insight on using in-vivo diode dosimetry to verify the delivered ‎doses during radiotherapy 关于使用体内二极管剂量法来验证放射治疗期间递送剂量的见解

Arab Journal of Nuclear Sciences and Applications Pub Date : 2023-01-26 DOI: 10.21608/ajnsa.2023.170144.1651

Jamal M. AL-Shareef, R. Elgebaly, E. Attalla, N. Deiab, Dalal Aqmar, Mohamed Fathy

{"title":"An insight on using in-vivo diode dosimetry to verify the delivered ‎doses during radiotherapy","authors":"Jamal M. AL-Shareef, R. Elgebaly, E. Attalla, N. Deiab, Dalal Aqmar, Mohamed Fathy","doi":"10.21608/ajnsa.2023.170144.1651","DOIUrl":"https://doi.org/10.21608/ajnsa.2023.170144.1651","url":null,"abstract":"In-vivo dosimetry (IVD) is one of the most accurate ways for determining the dosage provided to the patient during treatment . The aim of this work is to verify whether patients were receiving the accurate prescribed dose. Which occurs by assessing the dose delivery errors, caused by human or equipment malfunctioning, using in-vivo diode dosimetry (IVDD). In total, 302 fields were performed for 80 cases, including pelvis, abdomen, thorax, and head and neck (H & N) patients. Prior to the clinical application, Alderson Rando phantom was used to evaluate the diodes' dependability as a complement to the validation process. The results revealed that the measured dose of the phantom was within ±5% of the planned dose. Additionally, patients' doses achieved 91.4% of the measured dose were within ±5% of the planned dose. Of the other 8.6%, about 5.6 % of the measured doses were more than 5% and less than 10% and only 3% were larger than 10% of the planned dose. The outlying values that were more than 5% were repeated as in-vitro measurements on a phantom and the deviations were within ±5%. This study demonstrated that diode measurements provide an immediate readout during the treatment process and it is reliable as quality assurance for linear accelerator. Moreover, IVDD is capable of detecting major and common treatment errors such as patient setup errors and incorrect source surface distance.","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46735369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Radioiodination, and Biological Assessment of Olsalazine, as a Highly Selective Radiotracer for Ulcerative Colitis Imaging in Mice Olsalazine作为一种用于小鼠溃疡性结肠炎成像的高选择性放射性示踪剂的放射性碘化和生物学评估

Arab Journal of Nuclear Sciences and Applications Pub Date : 2023-01-26 DOI: 10.21608/ajnsa.2022.163538.1639

M. Sanad, F. Marzook, S. Challan, H. Essam, A. Farag

{"title":"Radioiodination, and Biological Assessment of Olsalazine, as a Highly Selective Radiotracer for Ulcerative Colitis Imaging in Mice","authors":"M. Sanad, F. Marzook, S. Challan, H. Essam, A. Farag","doi":"10.21608/ajnsa.2022.163538.1639","DOIUrl":"https://doi.org/10.21608/ajnsa.2022.163538.1639","url":null,"abstract":"Ulcerative colitis (UC) is a chronic, regressive natural disease. The use of conventional diagnostic procedures such as magnetic resonance imaging, ultrasonography, and X-rays during the dormant and early stages of the disease does not aid in diagnosing the disease. As a result, a novel design, such as labelled compounds, were used to image ulcerative colitis disease. In this study, olsalazine was labeled with [ 125/131 I] and the labelling parameters were adjusted to obtain a high radiochemical yield (98.5%). In addition, the olsalazine radiotracer gave 96.0% purity in rate serum for up to twelve hours before it started to degrade at twenty-four hours, and it was stable also, in saline for up to twenty-four hours. Molecular docking was used to assess a complex's affinity for its biological target, and the PPAR  receptor. The biological assessment was also performed in mice models of both standard and ulcerative colitis. The results demonstrated that [ 125/131 I] iodoolsalazine had a high uptake of 79.5% (ID/g) at 120 minutes post-injection and is still high to 77% at 24 hours. So, the labelled compound, [ 125/131 I] iodoolsalazine, could be considered a new potential selective radiotracer for preclinical diagnostic research of ulcerative colitis.","PeriodicalId":8110,"journal":{"name":"Arab Journal of Nuclear Sciences and Applications","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42116869","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Radiation Attenuation Properties of BaMnO3 Doping Nickel Semiconductor Perovskite Using Phys-X/PSD Software 用Phys-X/PSD软件研究BaMnO3掺杂镍半导体钙钛矿的辐射衰减特性

Arab Journal of Nuclear Sciences and Applications Pub Date : 2023-01-26 DOI: 10.21608/ajnsa.2022.154447.1621

M. Ghozza

引用次数: 0

Using Systematic Analysis for Stealth Elements Against Intrusion of Research Reactors 针对研究堆入侵的隐身元件系统分析

Arab Journal of Nuclear Sciences and Applications Pub Date : 2023-01-01 DOI: 10.21608/ajnsa.2022.170999.1655

Amir Tolba

引用次数: 0

Legal Frame of Nuclear and Radiological Programs in Generals And the Egyptians Programs in Special Part1. Nuclear and Radiological Programs in Generals 一般核与放射性项目的法律框架和埃及特殊项目第1部分。将军中的核与放射学项目

Arab Journal of Nuclear Sciences and Applications Pub Date : 2023-01-01 DOI: 10.21608/ajnsa.2022.144473.1597

Mohamed Ahmed, Farouk Abd El-Rahman

引用次数: 0

Ageing Management Activities at the Ghana Research Reactor-1 Facility 加纳1号研究反应堆设施的老化管理活动

Arab Journal of Nuclear Sciences and Applications Pub Date : 2023-01-01 DOI: 10.21608/ajnsa.2022.171880.1661

Philip DORDOH-GASU

引用次数: 0

The Role of Research Reactors in Sustainable Development in Kenya 研究反应堆在肯尼亚可持续发展中的作用

Arab Journal of Nuclear Sciences and Applications Pub Date : 2023-01-01 DOI: 10.21608/ajnsa.2022.171878.1659

Hilda Mpakany, Victor Mutava

引用次数: 0

Results of the Hydraulic Testing of the New Low Enriched Core of Tajoura Research Reactor Tajoura研究堆新型低浓堆芯水力试验结果

Arab Journal of Nuclear Sciences and Applications Pub Date : 2023-01-01 DOI: 10.21608/ajnsa.2022.171655.1658

K. Ali

引用次数: 0