首页 > 最新文献

MOLECULAR SCIENCES AND APPLICATIONS最新文献

英文 中文
Computer-Aided Design of Novel Active Components in Plant Protection 植物保护领域新型活性成分的计算机辅助设计
Pub Date : 2024-05-09 DOI: 10.37394/232023.2024.4.1
V. Rastija
The production demands highly specific environmentally and toxicologically acceptable plant protection products are increasing. Computer-aided molecular design of new active components has a great deal in developing plant protection products to avoid that long-lasting and expensive process. Computational design of future compounds and their synthesis, evaluation of their effectiveness on harmful and beneficial organisms in the soil, as well as detailed research mechanism of action at the molecular level, represents an initial stage in the long-lasting and expensive process of plant protection products. In this paper, the recent advances in quantitative structure-activity relationship (QSAR) studies, molecular docking, and calculation of “Pesticidelikeness properties “, as well, have been reviewed. QSAR models for antifungal activities against phytopathological fungi were obtained for the thiazoline and coumarine derivatives, coumarinyl Schiff bases, and coumarin-1,2,4-triazoles. A molecular docking study revealed that antifungal activities of fluorinated pyrazole aldehydes are related to the inhibition of proteinase K, coumarinyl Schiff bases with endoglucanase and pectinase, hybrids of coumarins and 1,2,4-triazoles with sterol 14α-demethylase inhibition, 3-gydroxycoumarin chitin synthase, while γ-thionins strongly binds to fungal membrane moieties.
生产对环境和毒理学上可接受的高特异性植保产品的需求日益增长。新活性成分的计算机辅助分子设计在开发植物保护产品方面大有用武之地,可以避免这一漫长而昂贵的过程。计算设计未来的化合物及其合成、评估其对土壤中有害和有益生物的效力,以及在分子水平上详细研究其作用机制,是植物保护产品开发过程中漫长而昂贵的初始阶段。本文综述了定量结构-活性关系(QSAR)研究、分子对接和 "杀虫性 "计算的最新进展。研究获得了噻唑啉和香豆素衍生物、香豆素席夫碱和香豆素-1,2,4-三唑对植物病原真菌抗真菌活性的 QSAR 模型。分子对接研究表明,氟化吡唑醛的抗真菌活性与抑制蛋白酶 K 有关,香豆素基席夫碱与抑制内切葡聚糖酶和果胶酶有关,香豆素和 1,2,4- 三唑的混合物与抑制甾醇 14α-demethylase 有关,3-gydroxycoumarin chitin synthase 有关,而 γ-thionins 与真菌膜分子有很强的结合力。
{"title":"Computer-Aided Design of Novel Active Components in Plant Protection","authors":"V. Rastija","doi":"10.37394/232023.2024.4.1","DOIUrl":"https://doi.org/10.37394/232023.2024.4.1","url":null,"abstract":"The production demands highly specific environmentally and toxicologically acceptable plant protection products are increasing. Computer-aided molecular design of new active components has a great deal in developing plant protection products to avoid that long-lasting and expensive process. Computational design of future compounds and their synthesis, evaluation of their effectiveness on harmful and beneficial organisms in the soil, as well as detailed research mechanism of action at the molecular level, represents an initial stage in the long-lasting and expensive process of plant protection products. In this paper, the recent advances in quantitative structure-activity relationship (QSAR) studies, molecular docking, and calculation of “Pesticidelikeness properties “, as well, have been reviewed. QSAR models for antifungal activities against phytopathological fungi were obtained for the thiazoline and coumarine derivatives, coumarinyl Schiff bases, and coumarin-1,2,4-triazoles. A molecular docking study revealed that antifungal activities of fluorinated pyrazole aldehydes are related to the inhibition of proteinase K, coumarinyl Schiff bases with endoglucanase and pectinase, hybrids of coumarins and 1,2,4-triazoles with sterol 14α-demethylase inhibition, 3-gydroxycoumarin chitin synthase, while γ-thionins strongly binds to fungal membrane moieties.","PeriodicalId":336407,"journal":{"name":"MOLECULAR SCIENCES AND APPLICATIONS","volume":" 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140995584","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
Dipole Moment of A-agents series via Molecular Dynamics Simulations 基于分子动力学模拟的a -试剂系列偶极矩
Pub Date : 2023-08-28 DOI: 10.37394/232023.2023.3.1
M. Chalaris, Antonios Koufou, K. Kravari, P. Chatzimisios
The study focused on employing Molecular Dynamics Simulations to determine the dipole moment of Novichok A-agents, which are notorious as Chemical Warfare agents. These simulations were conducted at the level of isolated molecules, allowing for a focused analysis of the dipole moment's behavior within the agents. Molecular Dynamics Simulations were chosen as the primary tool for estimating the dipole moment due to their unique advantages. By simulating the behavior of molecules in a virtual environment, MDS provides a quick and efficient means of estimating crucial properties. This is particularly significant for substances like Novichok A-agents, which are associated with high toxicity and extreme sensitivity, making traditional experimental methods challenging. The simulations were executed on isolated molecules, an approach that simplifies the analysis and enables a more direct examination of the dipole moment's characteristics. This focused perspective contributes to the accuracy of the results and offers insights into the agents' charge distribution and interactions.
这项研究的重点是利用分子动力学模拟来确定诺维乔克a型毒剂的偶极矩,诺维乔克a型毒剂是一种臭名昭著的化学战剂。这些模拟是在孤立分子的水平上进行的,允许对介质中偶极矩的行为进行集中分析。分子动力学模拟由于其独特的优势而被选择作为估计偶极矩的主要工具。通过在虚拟环境中模拟分子的行为,MDS提供了一种快速有效的估计关键特性的方法。这对于像诺维乔克a剂这样的物质尤其重要,它们具有高毒性和极端敏感性,使传统的实验方法具有挑战性。模拟是在孤立的分子上进行的,这种方法简化了分析,能够更直接地检查偶极矩的特征。这种集中的视角有助于结果的准确性,并提供了对代理的收费分布和相互作用的见解。
{"title":"Dipole Moment of A-agents series via Molecular Dynamics Simulations","authors":"M. Chalaris, Antonios Koufou, K. Kravari, P. Chatzimisios","doi":"10.37394/232023.2023.3.1","DOIUrl":"https://doi.org/10.37394/232023.2023.3.1","url":null,"abstract":"The study focused on employing Molecular Dynamics Simulations to determine the dipole moment of Novichok A-agents, which are notorious as Chemical Warfare agents. These simulations were conducted at the level of isolated molecules, allowing for a focused analysis of the dipole moment's behavior within the agents. Molecular Dynamics Simulations were chosen as the primary tool for estimating the dipole moment due to their unique advantages. By simulating the behavior of molecules in a virtual environment, MDS provides a quick and efficient means of estimating crucial properties. This is particularly significant for substances like Novichok A-agents, which are associated with high toxicity and extreme sensitivity, making traditional experimental methods challenging. The simulations were executed on isolated molecules, an approach that simplifies the analysis and enables a more direct examination of the dipole moment's characteristics. This focused perspective contributes to the accuracy of the results and offers insights into the agents' charge distribution and interactions.","PeriodicalId":336407,"journal":{"name":"MOLECULAR SCIENCES AND APPLICATIONS","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124153807","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
Simulation of the Radioprotective Action of Mercaptoethylamine Derivatives and its Analogues with their Quantum-Chemical and Information Features 巯基乙胺衍生物及其类似物的量子化学和信息特征模拟辐射防护作用
Pub Date : 2022-12-31 DOI: 10.37394/232023.2022.2.14
Mukhomorov V. K.
Quantum chemistry, condensed matter physics and applied information theory methods are used to reveal the relationship between the molecular structure of radiation injury modifiers and their radioprotective activity in the series of aminothiols and their analogues. Significant electronic and informational parameters of molecules, which are associated with the radioprotective effect of drugs, were determined by statistical analysis methods. Based on the identified significant molecular parameters, possible mechanisms of the biochemical and biophysical radioprotective action of the analyzed chemical compounds are discussed. The detected significant molecular parameters suggest what possible molecular processes these drugs can take part in and what electronic and informational properties radioprotectors molecules should possess.
利用量子化学、凝聚态物理和应用信息论等方法,揭示了氨基硫醇及其类似物系列中辐射损伤调节剂的分子结构与其辐射防护活性之间的关系。用统计分析方法确定了与药物防辐射作用有关的分子的重要电子参数和信息参数。根据所鉴定的重要分子参数,讨论了所分析化合物的生化和生物物理辐射防护作用的可能机制。检测到的重要分子参数提示了这些药物可能参与的分子过程以及放射性防护剂分子应具有的电子和信息特性。
{"title":"Simulation of the Radioprotective Action of Mercaptoethylamine Derivatives and its Analogues with their Quantum-Chemical and Information Features","authors":"Mukhomorov V. K.","doi":"10.37394/232023.2022.2.14","DOIUrl":"https://doi.org/10.37394/232023.2022.2.14","url":null,"abstract":"Quantum chemistry, condensed matter physics and applied information theory methods are used to reveal the relationship between the molecular structure of radiation injury modifiers and their radioprotective activity in the series of aminothiols and their analogues. Significant electronic and informational parameters of molecules, which are associated with the radioprotective effect of drugs, were determined by statistical analysis methods. Based on the identified significant molecular parameters, possible mechanisms of the biochemical and biophysical radioprotective action of the analyzed chemical compounds are discussed. The detected significant molecular parameters suggest what possible molecular processes these drugs can take part in and what electronic and informational properties radioprotectors molecules should possess.","PeriodicalId":336407,"journal":{"name":"MOLECULAR SCIENCES AND APPLICATIONS","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125408961","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
Strategic Modeling of Medical Intelligence as a Countermeasure for Future Pandemics 医学智能战略建模作为未来流行病的对策
Pub Date : 2022-10-07 DOI: 10.37394/232023.2022.2.12
M. Welcome, D. Kumar M.
The coronavirus disease 2019 (COVID-19) evidently caused untold suffering and disruption of activities worldwide. Several hundreds of millions of individuals were infected, resulting in millions of deaths and socioeconomic losses in all regions of the world. It is possible that availability of information required to make a quick decision would have prevented the consequences of the disease, suggesting that the COVID-19 pandemic was an indication of a global medical intelligence failure. Indeed, medical intelligence is a critical aspect of intelligence gathering, responsible for collection, analysis, interpretation and characterization of the data to effectively monitor the outbreak of diseases and activate the required modalities and strategic planning to provide prompt preparedness and response countermeasures (including nonmedical and medical such as rehabilitation) to manage the public health risk or mitigate the incident. In this context, the role of technology, especially AI, ML and DL applications to support the medical intelligence is explored into this paper. The study followed systematic literature review to gather the information and arrive at strategic model. The study extends practical implications by suggesting the role of AI, ML and DL in medical intelligence, that should be considered as a fundamental arm of the national security architecture of a nation. With tremendous progress in technologies, further enhancement of medical intelligence can help to mitigate potential public health risks and future pandemics. There is an urgent demand for a better knowledge of what tasks information structures and technology scientists can play in this global pandemic related to medical intelligence. Current paper thus details the critical components of medical intelligence systems and networks required as countermeasures for future pandemics.
2019冠状病毒病(COVID-19)显然给世界各地的活动造成了难以估量的痛苦和破坏。在世界所有区域,数亿人受到感染,造成数百万人死亡和社会经济损失。如果能够获得迅速做出决定所需的信息,就有可能避免这种疾病的后果,这表明COVID-19大流行是全球医疗情报失败的一个迹象。实际上,医疗情报是情报收集的一个关键方面,负责收集、分析、解释和描述数据,以有效监测疾病的爆发,并启动所需的模式和战略规划,以提供迅速的准备和应对对策(包括康复等非医疗和医疗),以管理公共卫生风险或减轻事件。在此背景下,本文探讨了技术,特别是人工智能、机器学习和深度学习应用对医疗智能的支持作用。本研究通过系统的文献综述来收集信息,得出战略模型。该研究通过提出人工智能、机器学习和深度学习在医疗智能中的作用,扩展了实际意义,医疗智能应被视为一个国家国家安全架构的基本组成部分。随着技术的巨大进步,进一步加强医疗情报可以帮助减轻潜在的公共卫生风险和未来的大流行病。迫切需要更好地了解信息结构和技术科学家在这场与医疗情报有关的全球大流行中可以发挥的任务。因此,本文详细介绍了应对未来流行病所需的医疗智能系统和网络的关键组成部分。
{"title":"Strategic Modeling of Medical Intelligence as a Countermeasure for Future Pandemics","authors":"M. Welcome, D. Kumar M.","doi":"10.37394/232023.2022.2.12","DOIUrl":"https://doi.org/10.37394/232023.2022.2.12","url":null,"abstract":"The coronavirus disease 2019 (COVID-19) evidently caused untold suffering and disruption of activities worldwide. Several hundreds of millions of individuals were infected, resulting in millions of deaths and socioeconomic losses in all regions of the world. It is possible that availability of information required to make a quick decision would have prevented the consequences of the disease, suggesting that the COVID-19 pandemic was an indication of a global medical intelligence failure. Indeed, medical intelligence is a critical aspect of intelligence gathering, responsible for collection, analysis, interpretation and characterization of the data to effectively monitor the outbreak of diseases and activate the required modalities and strategic planning to provide prompt preparedness and response countermeasures (including nonmedical and medical such as rehabilitation) to manage the public health risk or mitigate the incident. In this context, the role of technology, especially AI, ML and DL applications to support the medical intelligence is explored into this paper. The study followed systematic literature review to gather the information and arrive at strategic model. The study extends practical implications by suggesting the role of AI, ML and DL in medical intelligence, that should be considered as a fundamental arm of the national security architecture of a nation. With tremendous progress in technologies, further enhancement of medical intelligence can help to mitigate potential public health risks and future pandemics. There is an urgent demand for a better knowledge of what tasks information structures and technology scientists can play in this global pandemic related to medical intelligence. Current paper thus details the critical components of medical intelligence systems and networks required as countermeasures for future pandemics.","PeriodicalId":336407,"journal":{"name":"MOLECULAR SCIENCES AND APPLICATIONS","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124767754","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
COVID-19 Medical Data Integration Approach COVID-19医疗数据集成方法
Pub Date : 2022-07-18 DOI: 10.37394/232023.2022.2.11
V. Todorova, Veska Gancheva, V. Mladenov
The need to create automated methods for extracting knowledge from data arises from the accumulation of a large amount of data. This paper presents a conceptual model for integrating and processing medical data in three layers, comprising a total of six phases: a model for integrating, filtering, sorting and aggregating Covid-19 data. A medical data integration workflow was designed, including steps of data integration, filtering and sorting. The workflow for Covid-19 medical data from clinical records of 20400 potential patients was employed.
由于大量数据的积累,需要创建从数据中提取知识的自动化方法。本文提出了一个三层医疗数据整合与处理的概念模型,共包括六个阶段:新冠肺炎数据的整合、过滤、排序和聚合模型。设计了一个医疗数据集成工作流,包括数据集成、过滤和排序步骤。采用20400例潜在患者临床记录中的新冠肺炎医疗数据工作流。
{"title":"COVID-19 Medical Data Integration Approach","authors":"V. Todorova, Veska Gancheva, V. Mladenov","doi":"10.37394/232023.2022.2.11","DOIUrl":"https://doi.org/10.37394/232023.2022.2.11","url":null,"abstract":"The need to create automated methods for extracting knowledge from data arises from the accumulation of a large amount of data. This paper presents a conceptual model for integrating and processing medical data in three layers, comprising a total of six phases: a model for integrating, filtering, sorting and aggregating Covid-19 data. A medical data integration workflow was designed, including steps of data integration, filtering and sorting. The workflow for Covid-19 medical data from clinical records of 20400 potential patients was employed.","PeriodicalId":336407,"journal":{"name":"MOLECULAR SCIENCES AND APPLICATIONS","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133130776","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
An Environmentally Friendly Approach for the Synthesis of Au Nanoparticles Supported Mesoporous Silica for Catalytic Applications 一种环境友好的方法合成金纳米颗粒负载介孔二氧化硅的催化应用
Pub Date : 2022-06-02 DOI: 10.37394/232023.2022.2.9
Andrés Guzmán‐Cruz, F. Paraguay-Delgado, M. Pal
Mesoporous silica has received much attention as an attractive support material for metal nanoparticles (NPs) with good dispersion and exceptional stability for various catalytic reactions. However, the lack of synthetic protocols to controlled synthesis of mesoporous silica with high surface area and ideal pore size for supporting metal NPs significantly reduces the catalytic performance and stability of the catalysts. This work reports a facile synthetic route to prepare mesoporous silica-supported Au NPs (Au/SiO2) for efficient catalytic reduction of 4-nitrophenol. An environmentally friendly synthetic route was exploited to prepare mesoporous silica using deep eutectic solvent (DES) derived from choline chloride/urea as an efficient solvent and template in solvothermal reaction. The mesoporous silica was first functionalized with –NH2 groups, and subsequently, Au NPs with an average size of 10 nm were deposited onto the mesoporous silica matrix. Owing to the strong interaction of supported Au NPs with the mesoporous silica support, the resultant composite exhibited excellent catalytic performance towards the reduction of 4-NP to 4-aminophenol with a rate constant of Kapp= 3.04 x10-1 min-1 and exceptionally high stability compared to bare mesoporous silica catalyst. The current green approach to fabricating mesoporous silica and Au/SiO2 catalysts holds great promise since it is a much cheaper and environmentally friendly method for large-scale fabrication of other supported catalysts for different catalytic reactions.
介孔二氧化硅作为一种具有良好分散性和优异稳定性的金属纳米颗粒载体材料,在各种催化反应中受到广泛关注。然而,缺乏控制合成具有高表面积和理想孔径的介孔二氧化硅来支持金属NPs的合成方案,大大降低了催化剂的催化性能和稳定性。本文报道了一种制备介孔二氧化硅负载金纳米粒子(Au/SiO2)的简便合成方法,用于高效催化还原4-硝基苯酚。利用氯化胆碱/尿素衍生的深共熔溶剂(DES)作为溶剂热反应的有效溶剂和模板剂,探索了一种环保型合成介孔二氧化硅的途径。首先用-NH2基团对介孔二氧化硅进行官能团化,然后在介孔二氧化硅基体上沉积平均尺寸为10 nm的Au纳米粒子。由于负载的Au NPs与介孔二氧化硅载体的强相互作用,合成的复合材料对4-NP还原为4-氨基苯酚表现出优异的催化性能,其速率常数为Kapp= 3.04 x10-1 min-1,与裸介孔二氧化硅催化剂相比,稳定性非常高。目前制造介孔二氧化硅和Au/SiO2催化剂的绿色方法具有很大的前景,因为它是一种更便宜和环保的方法,可以大规模制造用于不同催化反应的其他负载催化剂。
{"title":"An Environmentally Friendly Approach for the Synthesis of Au Nanoparticles Supported Mesoporous Silica for Catalytic Applications","authors":"Andrés Guzmán‐Cruz, F. Paraguay-Delgado, M. Pal","doi":"10.37394/232023.2022.2.9","DOIUrl":"https://doi.org/10.37394/232023.2022.2.9","url":null,"abstract":"Mesoporous silica has received much attention as an attractive support material for metal nanoparticles (NPs) with good dispersion and exceptional stability for various catalytic reactions. However, the lack of synthetic protocols to controlled synthesis of mesoporous silica with high surface area and ideal pore size for supporting metal NPs significantly reduces the catalytic performance and stability of the catalysts. This work reports a facile synthetic route to prepare mesoporous silica-supported Au NPs (Au/SiO2) for efficient catalytic reduction of 4-nitrophenol. An environmentally friendly synthetic route was exploited to prepare mesoporous silica using deep eutectic solvent (DES) derived from choline chloride/urea as an efficient solvent and template in solvothermal reaction. The mesoporous silica was first functionalized with –NH2 groups, and subsequently, Au NPs with an average size of 10 nm were deposited onto the mesoporous silica matrix. Owing to the strong interaction of supported Au NPs with the mesoporous silica support, the resultant composite exhibited excellent catalytic performance towards the reduction of 4-NP to 4-aminophenol with a rate constant of Kapp= 3.04 x10-1 min-1 and exceptionally high stability compared to bare mesoporous silica catalyst. The current green approach to fabricating mesoporous silica and Au/SiO2 catalysts holds great promise since it is a much cheaper and environmentally friendly method for large-scale fabrication of other supported catalysts for different catalytic reactions.","PeriodicalId":336407,"journal":{"name":"MOLECULAR SCIENCES AND APPLICATIONS","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125959832","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
Optical Properties of γ – Irradiated Cd1-xFexS Thin Films γ辐照Cd1-xFexS薄膜的光学性质
Pub Date : 2022-06-02 DOI: 10.37394/232023.2022.2.8
Mehrabova M. A., Mammadli S. N., Hasanov N. H., Nazarov A. M.
The transmission spectra of γ-irradiated Cd1-xFexS (x=0.05) thin films were carried out to study the effect of γ-irradiation upon optical properties and dispersion parameters. It was found that the optical properties of Cd1-xFexS thin films were highly affected by the exposure to γ-irradiation. The optical absorption spectra showed that the absorption mechanism is a direct allowed transition. The optical energy gap increases with the increase in irradiation dose. The values of optical constants were affected obviously with the increase in irradiation dose.
利用γ辐照Cd1-xFexS (x=0.05)薄膜的透射光谱,研究了γ辐照对薄膜光学性能和色散参数的影响。结果表明,Cd1-xFexS薄膜的光学性能受γ辐照的影响较大。光学吸收光谱表明其吸收机制为直接允许跃迁。光能隙随辐照剂量的增加而增大。随着辐照剂量的增加,光学常数的取值受到明显的影响。
{"title":"Optical Properties of γ – Irradiated Cd1-xFexS Thin Films","authors":"Mehrabova M. A., Mammadli S. N., Hasanov N. H., Nazarov A. M.","doi":"10.37394/232023.2022.2.8","DOIUrl":"https://doi.org/10.37394/232023.2022.2.8","url":null,"abstract":"The transmission spectra of γ-irradiated Cd1-xFexS (x=0.05) thin films were carried out to study the effect of γ-irradiation upon optical properties and dispersion parameters. It was found that the optical properties of Cd1-xFexS thin films were highly affected by the exposure to γ-irradiation. The optical absorption spectra showed that the absorption mechanism is a direct allowed transition. The optical energy gap increases with the increase in irradiation dose. The values of optical constants were affected obviously with the increase in irradiation dose.","PeriodicalId":336407,"journal":{"name":"MOLECULAR SCIENCES AND APPLICATIONS","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121342994","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
Intelligent Analysis of Some Factors Accompanying Hepatitis B 乙型肝炎伴发因素智能分析
Pub Date : 2022-05-09 DOI: 10.37394/232023.2022.2.7
Bouharati Khaoula, Bouharati Imene, Guenifi Wahiba, Gasmi Abdelkader, Laouamri Slimane
Background. It is evident that the B hepatitis disease is favored by several risk factors. Among the factors analyzed in this study, gender, diabetes, arterial hypertension, and body mass index. The age of the first infection is related to these variables. As the system is very complex, because other factors can have an effect and which are ignored, this study processes data using artificial intelligence techniques. Method. The study concerns 30 patients diagnosed at our service of the university hospital of Setif in Algeria. The study period runs from 2011 to 2020. The risk factors are considered imprecise and therefore fuzzy. A fuzzy inference system is applied in this study. The data is fuzzyfied and a rule base is established. Results. As the principles of fuzzy logic deal with the uncertain, this allowed us to take care of this imprecision and complexity. The established rule base maps the inputs, which are the risk factors, to hepatitis as the output variable. Conclusion. Several factors promote hepatitis B. The physiological system differs from one individual to another. Also, the weight of each factor is ignored. Given this complexity, the principles of fuzzy logic proposed are adequate. Once the system has been completed, it allows the random introduction of values at the input to automatically read the result at the output. This tool can be considered as a prevention system in the appearance and and establish a typical profile of people likely to be affected by hepatitis.
背景。很明显,B型肝炎有几个危险因素。本研究分析的因素包括性别、糖尿病、动脉高血压和体重指数。第一次感染的年龄与这些变量有关。由于系统非常复杂,由于其他因素可能会产生影响而被忽略,因此本研究使用人工智能技术处理数据。方法。这项研究涉及在阿尔及利亚塞提夫大学医院接受我们服务的30名患者。研究时间从2011年到2020年。风险因素被认为是不精确的,因此是模糊的。本研究采用了模糊推理系统。对数据进行模糊化处理,建立规则库。结果。由于模糊逻辑的原理处理不确定性,这使我们能够处理这种不精确性和复杂性。已建立的规则库将输入(即风险因素)映射到作为输出变量的肝炎。结论。多种因素可促进乙肝的发展。每个人的生理系统不同。同时,忽略每个因素的权重。考虑到这种复杂性,所提出的模糊逻辑原理是足够的。一旦系统完成,它允许在输入处随机引入值,以自动读取输出处的结果。该工具在外观上可被视为一种预防系统,并可建立可能受肝炎影响的人群的典型概况。
{"title":"Intelligent Analysis of Some Factors Accompanying Hepatitis B","authors":"Bouharati Khaoula, Bouharati Imene, Guenifi Wahiba, Gasmi Abdelkader, Laouamri Slimane","doi":"10.37394/232023.2022.2.7","DOIUrl":"https://doi.org/10.37394/232023.2022.2.7","url":null,"abstract":"Background. It is evident that the B hepatitis disease is favored by several risk factors. Among the factors analyzed in this study, gender, diabetes, arterial hypertension, and body mass index. The age of the first infection is related to these variables. As the system is very complex, because other factors can have an effect and which are ignored, this study processes data using artificial intelligence techniques. Method. The study concerns 30 patients diagnosed at our service of the university hospital of Setif in Algeria. The study period runs from 2011 to 2020. The risk factors are considered imprecise and therefore fuzzy. A fuzzy inference system is applied in this study. The data is fuzzyfied and a rule base is established. Results. As the principles of fuzzy logic deal with the uncertain, this allowed us to take care of this imprecision and complexity. The established rule base maps the inputs, which are the risk factors, to hepatitis as the output variable. Conclusion. Several factors promote hepatitis B. The physiological system differs from one individual to another. Also, the weight of each factor is ignored. Given this complexity, the principles of fuzzy logic proposed are adequate. Once the system has been completed, it allows the random introduction of values at the input to automatically read the result at the output. This tool can be considered as a prevention system in the appearance and and establish a typical profile of people likely to be affected by hepatitis.","PeriodicalId":336407,"journal":{"name":"MOLECULAR SCIENCES AND APPLICATIONS","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131102189","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: 2
Decomposition of a Tissue Into Its Constituent Elements for Specifying the Values of Doses 为确定剂量值而将组织分解为其组成元素
Pub Date : 2022-05-07 DOI: 10.37394/232023.2022.2.6
Seyed Alireza Mousavi Shirazi
In this research, a real tissue has been decomposed to its constituent materials and elements applying its volumetric density and initial mass. This study has been carried out to obtain the exact amounts of constituent elements existing in liver tissue as well as specify the absorbed dose because of the tissue getting exposed to radiation in radiotherapy and radiography. In order, a medical model has been defined in a way that its compositions are just like the materials existing in the tissue of a human. Then, the accurate mass, density, and volume of every element in it are specified. In the next stage, the related tissue is exposed to a neutron beam, and then the values of doses absorbed in the main constituent material namely water, and also the total absorbed dose is obtained by the MCNP nuclear code. This study can be used to study the radiotherapy and radiography scopes for obtaining the absorbed dose as a result of interaction between radiation beam and biological cells. In this research, the values of absorbed doses have been obtained for a wide range of neutron energies in a way that the absorbed doses can accurately be obtained.
在本研究中,利用真实组织的体积密度和初始质量将其分解为其组成材料和元素。本研究的目的是获得肝组织中存在的组成元素的确切量,并规定肝组织在放射治疗和放射照相中受到辐射的吸收剂量。因此,医学模型被定义为其组成就像存在于人体组织中的材料一样。然后,确定其中每个元素的精确质量、密度和体积。在下一阶段,将相关组织暴露于中子束中,然后通过MCNP核代码获得主要成分物质即水的吸收剂量值以及总吸收剂量。本研究可用于研究放射治疗和放射照相范围,以获得放射束与生物细胞相互作用所产生的吸收剂量。本研究在较宽的中子能量范围内得到了吸收剂量的值,从而可以准确地得到吸收剂量。
{"title":"Decomposition of a Tissue Into Its Constituent Elements for Specifying the Values of Doses","authors":"Seyed Alireza Mousavi Shirazi","doi":"10.37394/232023.2022.2.6","DOIUrl":"https://doi.org/10.37394/232023.2022.2.6","url":null,"abstract":"In this research, a real tissue has been decomposed to its constituent materials and elements applying its volumetric density and initial mass. This study has been carried out to obtain the exact amounts of constituent elements existing in liver tissue as well as specify the absorbed dose because of the tissue getting exposed to radiation in radiotherapy and radiography. In order, a medical model has been defined in a way that its compositions are just like the materials existing in the tissue of a human. Then, the accurate mass, density, and volume of every element in it are specified. In the next stage, the related tissue is exposed to a neutron beam, and then the values of doses absorbed in the main constituent material namely water, and also the total absorbed dose is obtained by the MCNP nuclear code. This study can be used to study the radiotherapy and radiography scopes for obtaining the absorbed dose as a result of interaction between radiation beam and biological cells. In this research, the values of absorbed doses have been obtained for a wide range of neutron energies in a way that the absorbed doses can accurately be obtained.","PeriodicalId":336407,"journal":{"name":"MOLECULAR SCIENCES AND APPLICATIONS","volume":"5 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125542291","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
Modeling of Radioprotective Activity of Substituted Triptamines 取代雷公胺辐射防护活性的模拟
Pub Date : 2022-05-06 DOI: 10.37394/232023.2022.2.5
V. Mukhomorov
A close relationship was established between the bioactivity of substituted tryptaminoes and electronic, geometric, and informational factors. It is shown that for bioactive and inactive chemical compounds there are different interrelationships of electronic information factors. That is, a structural shift was found in the relationships of molecular parameters for bioactive molecules and weakly active drugs.The presence of a structural break does not contradict statistical criteria. The optimal sizes of the substituents have been determined.
取代色胺的生物活性与电子、几何和信息因素密切相关。结果表明,生物活性化合物和非活性化合物的电子信息因子之间存在不同的相互关系。也就是说,生物活性分子与弱活性药物的分子参数关系发生了结构上的变化。结构性断裂的存在与统计标准并不矛盾。确定了取代基的最佳尺寸。
{"title":"Modeling of Radioprotective Activity of Substituted Triptamines","authors":"V. Mukhomorov","doi":"10.37394/232023.2022.2.5","DOIUrl":"https://doi.org/10.37394/232023.2022.2.5","url":null,"abstract":"A close relationship was established between the bioactivity of substituted tryptaminoes and electronic, geometric, and informational factors. It is shown that for bioactive and inactive chemical compounds there are different interrelationships of electronic information factors. That is, a structural shift was found in the relationships of molecular parameters for bioactive molecules and weakly active drugs.The presence of a structural break does not contradict statistical criteria. The optimal sizes of the substituents have been determined.","PeriodicalId":336407,"journal":{"name":"MOLECULAR SCIENCES AND APPLICATIONS","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117062506","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
期刊
MOLECULAR SCIENCES AND APPLICATIONS
全部 Acc. Chem. Res. ACS Applied Bio Materials ACS Appl. Electron. Mater. ACS Appl. Energy Mater. ACS Appl. Mater. Interfaces ACS Appl. Nano Mater. ACS Appl. Polym. Mater. ACS BIOMATER-SCI ENG ACS Catal. ACS Cent. Sci. ACS Chem. Biol. ACS Chemical Health & Safety ACS Chem. Neurosci. ACS Comb. Sci. ACS Earth Space Chem. ACS Energy Lett. ACS Infect. Dis. ACS Macro Lett. ACS Mater. Lett. ACS Med. Chem. Lett. ACS Nano ACS Omega ACS Photonics ACS Sens. ACS Sustainable Chem. Eng. ACS Synth. Biol. Anal. Chem. BIOCHEMISTRY-US Bioconjugate Chem. BIOMACROMOLECULES Chem. Res. Toxicol. Chem. Rev. Chem. Mater. CRYST GROWTH DES ENERG FUEL Environ. Sci. Technol. Environ. Sci. Technol. Lett. Eur. J. Inorg. Chem. IND ENG CHEM RES Inorg. Chem. J. Agric. Food. Chem. J. Chem. Eng. Data J. Chem. Educ. J. Chem. Inf. Model. J. Chem. Theory Comput. J. Med. Chem. J. Nat. Prod. J PROTEOME RES J. Am. Chem. Soc. LANGMUIR MACROMOLECULES Mol. Pharmaceutics Nano Lett. Org. Lett. ORG PROCESS RES DEV ORGANOMETALLICS J. Org. Chem. J. Phys. Chem. J. Phys. Chem. A J. Phys. Chem. B J. Phys. Chem. C J. Phys. Chem. Lett. Analyst Anal. Methods Biomater. Sci. Catal. Sci. Technol. Chem. Commun. Chem. Soc. Rev. CHEM EDUC RES PRACT CRYSTENGCOMM Dalton Trans. Energy Environ. Sci. ENVIRON SCI-NANO ENVIRON SCI-PROC IMP ENVIRON SCI-WAT RES Faraday Discuss. Food Funct. Green Chem. Inorg. Chem. Front. Integr. Biol. J. Anal. At. Spectrom. J. Mater. Chem. A J. Mater. Chem. B J. Mater. Chem. C Lab Chip Mater. Chem. Front. Mater. Horiz. MEDCHEMCOMM Metallomics Mol. Biosyst. Mol. Syst. Des. Eng. Nanoscale Nanoscale Horiz. Nat. Prod. Rep. New J. Chem. Org. Biomol. Chem. Org. Chem. Front. PHOTOCH PHOTOBIO SCI PCCP Polym. Chem.
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1