首页 > 最新文献

Open Access Library Journal最新文献

英文 中文
Book Review on Comenius’s School of Infancy 夸美纽斯的婴儿学派书评
Pub Date : 2021-06-11 DOI: 10.4236/OALIB.1107491
Zhao Nian
The author of the book School of Infancy is John Amos Comenius, a distinguished Czech educator. As for the purpose of the book, Comenius points out in his another book The Great Didactic: “As educators, we should write a handbook for parents and put their ...
《婴儿学派》一书的作者是捷克著名教育家约翰·阿莫斯·夸美纽斯。至于这本书的目的,夸美纽斯在他的另一本书《伟大的说教》中指出:“作为教育者,我们应该为父母写一本手册,把他们的……
{"title":"Book Review on Comenius’s School of Infancy","authors":"Zhao Nian","doi":"10.4236/OALIB.1107491","DOIUrl":"https://doi.org/10.4236/OALIB.1107491","url":null,"abstract":"The author of the book School of Infancy is John Amos Comenius, a distinguished Czech educator. As for the purpose of the book, Comenius points out in his another book The Great Didactic: “As educators, we should write a handbook for parents and put their ...","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"21 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2021-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88088880","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
Searching if SARS-CoV-2 Subsists Following the Disinfection of Potable Water 搜索饮用水消毒后是否存在SARS-CoV-2
Pub Date : 2021-06-08 DOI: 10.4236/OALIB.1107505
D. Ghernaout, N. Elboughdiri
The manifestation of severe acute respiratory syndrome coronavirus 2 (SARS- CoV-2) in water and wastewater has newly been revealed. The stools and masks of the patients diagnosed with coronavirus disease (COVID-19) were viewed as the key way of CoV diffusi...
严重急性呼吸综合征冠状病毒2型(SARS- CoV-2)在水和废水中的表现新发现。新型冠状病毒病(COVID-19)患者的粪便和口罩被认为是冠状病毒传播的关键途径。
{"title":"Searching if SARS-CoV-2 Subsists Following the Disinfection of Potable Water","authors":"D. Ghernaout, N. Elboughdiri","doi":"10.4236/OALIB.1107505","DOIUrl":"https://doi.org/10.4236/OALIB.1107505","url":null,"abstract":"The manifestation of severe acute respiratory syndrome coronavirus 2 (SARS- CoV-2) in water and wastewater has newly been revealed. The stools and masks of the patients diagnosed with coronavirus disease (COVID-19) were viewed as the key way of CoV diffusi...","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"25 1","pages":"1-17"},"PeriodicalIF":0.0,"publicationDate":"2021-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83691623","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
The Relationship between the Conflicts and the Conflict Management Styles of Police Officers in the Philippines 菲律宾警察冲突与冲突管理方式之关系
Pub Date : 2021-06-01 DOI: 10.4236/OALIB.1107540
Xyra Rose A. Galman, Sheena Mai A. Galman, Jocelyn B. Cruz, Mercedes D. Santos
This study analyzed the relationship between the conflicts encountered by the Police Non-Commissioned Officers (PNCO) and Police Commissioned Officers (PCOs) in a province in the Philippines and the conflict management styles of the latter. The descriptive-correlation research design was used in this study involving 153 PNCOs and 24 PCOs as respondents. The conflicts were categorized as Controversy, Conceptual, and Conflict of Interest. On the other hand, the management styles were compromise, competition, and collaboration. Based on the results of the study, the management style of the respondents based on the given situations of conflict resulted in the following: PCOs employed competition in resolving controversies while they used compromise in resolving conceptual conflicts and conflict of interest. The conflicts encountered were significantly correlated with the management style of the respondents in different situations of conflict such as controversy, conceptual, and conflict of interest.
本研究分析了菲律宾某省警察士官(PNCO)与警察士官(PCOs)所遭遇的冲突与后者的冲突管理方式之间的关系。本研究采用描述性相关研究设计,对153名pnco和24名pco进行调查。这些冲突被分类为争议、概念和利益冲突。另一方面,管理风格是妥协、竞争和合作。根据研究结果,受访者基于给定冲突情况的管理风格导致以下结果:PCOs在解决争议时采用竞争,而在解决概念冲突和利益冲突时采用妥协。在争议性冲突、概念性冲突和利益冲突等不同的冲突情境中,被调查者的管理风格与所遇到的冲突有显著的相关性。
{"title":"The Relationship between the Conflicts and the Conflict Management Styles of Police Officers in the Philippines","authors":"Xyra Rose A. Galman, Sheena Mai A. Galman, Jocelyn B. Cruz, Mercedes D. Santos","doi":"10.4236/OALIB.1107540","DOIUrl":"https://doi.org/10.4236/OALIB.1107540","url":null,"abstract":"This study analyzed the relationship between the conflicts encountered by the Police Non-Commissioned Officers (PNCO) and Police Commissioned Officers (PCOs) in a province in the Philippines and the conflict management styles of the latter. The descriptive-correlation research design was used in this study involving 153 PNCOs and 24 PCOs as respondents. The conflicts were categorized as Controversy, Conceptual, and Conflict of Interest. On the other hand, the management styles were compromise, competition, and collaboration. Based on the results of the study, the management style of the respondents based on the given situations of conflict resulted in the following: PCOs employed competition in resolving controversies while they used compromise in resolving conceptual conflicts and conflict of interest. The conflicts encountered were significantly correlated with the management style of the respondents in different situations of conflict such as controversy, conceptual, and conflict of interest.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"37 1","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83719318","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
Movement for the “Emancipation of the Niger Delta” (MEND) Constitutes a Threat to the U.S. National Security “尼日尔三角洲解放运动”(MEND)对美国国家安全构成威胁
Pub Date : 2021-06-01 DOI: 10.4236/OALIB.1107465
Mustapha Kulungu
Since the discovery and commencement of oil production in 1956 in the Niger Delta, the region has worsened in terms of security, poverty, and environmental pollution. The “Movement for the Emancipation of the Niger Delta (MEND)” is among the insurgent groups that continue to cause havoc in the region. The Delta Niger area is infested with corruption, economic inequalities, lack of opportunities, political repression, nepotism, and so on. All these problems must be addressed equitably and promptly. If these issues are not resolved, they may cause security instability as well as insurgency. The insurgency in Niger Delta is a menace to Nigeria’s national and the stability of W. Africa and the U.S. interest. The paper brings out the history of the group, threat analysis, and recommendations on actions to be taken to mitigate the prospect of an attack.
自从1956年在尼日尔三角洲发现并开始生产石油以来,该地区在安全、贫困和环境污染方面恶化了。“尼日尔三角洲解放运动”(MEND)是继续在该地区制造破坏的叛乱组织之一。尼日尔三角洲地区充斥着腐败、经济不平等、缺乏机会、政治压迫、裙带关系等问题。所有这些问题都必须得到公平和及时的解决。如果这些问题得不到解决,就可能造成安全不稳定和叛乱。尼日尔三角洲的叛乱是对尼日利亚国家、西非稳定和美国利益的威胁。该文件提出了该组织的历史,威胁分析,并建议采取行动,以减轻攻击的前景。
{"title":"Movement for the “Emancipation of the Niger Delta” (MEND) Constitutes a Threat to the U.S. National Security","authors":"Mustapha Kulungu","doi":"10.4236/OALIB.1107465","DOIUrl":"https://doi.org/10.4236/OALIB.1107465","url":null,"abstract":"Since the discovery and commencement of oil production in 1956 in the Niger Delta, the region has worsened in terms of security, poverty, and environmental pollution. The “Movement for the Emancipation of the Niger Delta (MEND)” is among the insurgent groups that continue to cause havoc in the region. The Delta Niger area is infested with corruption, economic inequalities, lack of opportunities, political repression, nepotism, and so on. All these problems must be addressed equitably and promptly. If these issues are not resolved, they may cause security instability as well as insurgency. The insurgency in Niger Delta is a menace to Nigeria’s national and the stability of W. Africa and the U.S. interest. The paper brings out the history of the group, threat analysis, and recommendations on actions to be taken to mitigate the prospect of an attack.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"46 1","pages":"1-17"},"PeriodicalIF":0.0,"publicationDate":"2021-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77408032","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
The Significance of Particle’s Density in Quantum Field Theory 粒子密度在量子场论中的意义
Pub Date : 2021-05-26 DOI: 10.4236/OALIB.1107384
E. Comay
The paper emphasizes the significance of density of an elementary massive quantum particle. In quantum field theory, a quantum function of an elementary particle takes the form of Ψ(r,t). This kind of function is used for putting the inner product of t...
本文强调了基本大质量量子粒子密度的意义。在量子场论中,基本粒子的量子函数采用Ψ(r,t)的形式。这种函数是用来把t的内积…
{"title":"The Significance of Particle’s Density in Quantum Field Theory","authors":"E. Comay","doi":"10.4236/OALIB.1107384","DOIUrl":"https://doi.org/10.4236/OALIB.1107384","url":null,"abstract":"The paper emphasizes the significance of density of an elementary massive quantum particle. In quantum field theory, a quantum function of an elementary particle takes the form of Ψ(r,t). This kind of function is used for putting the inner product of t...","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"14 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2021-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90505536","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
Probing of Interaction between Alogliptin Benzoate and Human Serum Albumin Using Multi-Spectral Methods and Molecule Docking Technique 应用多光谱法和分子对接技术探讨阿格列汀与人血清白蛋白的相互作用
Pub Date : 2021-05-06 DOI: 10.4236/OALIB.1107283
N. Zhang, Jianbo Chen, Zhuowei Han
The interaction of alogliptin benzoate with human serum albumin had been characterized under physiological conditions using multi-spectral methods and molecular docking technique. The work presented in this paper focused on the interaction mechanism, the conformational changes of HSA and the binding sites of alogliptin benzoate with human serum albumin. The binding distance, binding constants, the number of binding sites and the binding forces had been investigated through fluorescence and spectral overlaps. Results indicated the presence of static quenching between alogliptin benzoate and human serum albumin. Moreover, the van der Waals forces and hydrogen bonding drove the binding process. The analysis results of UV–vis absorption spectroscopy, synchronous fluorescence spectrometry, circular dichroism spectroscopy and three-dimensional fluorescence spectroscopy revealed that alogliptin benzoate changed the conformation of human serum albumin. In addition, molecule docking and competitive experimental results suggested the binding sites located at IIA subdomain of human serum albumin. This research is vital to providing reference for studying the pharmacodynamics and pharmacokinetics mechanisms of alogliptin benzoate.
采用多光谱法和分子对接技术,在生理条件下研究了苯甲酸阿格列汀与人血清白蛋白的相互作用。本文就HSA与人血清白蛋白的相互作用机制、构象变化及阿格列汀与人血清白蛋白的结合位点等方面进行了综述。通过荧光和光谱重叠研究了它们的结合距离、结合常数、结合位点数量和结合力。结果表明,阿格列汀与人血清白蛋白之间存在静态猝灭。此外,范德华力和氢键驱动了结合过程。紫外-可见吸收光谱、同步荧光光谱、圆二色光谱和三维荧光光谱分析结果显示,苯甲酸阿格列汀改变了人血清白蛋白的构象。此外,分子对接和竞争实验结果表明,结合位点位于人血清白蛋白的IIA亚结构域。本研究对研究阿格列汀的药效学和药动学机制具有重要的参考意义。
{"title":"Probing of Interaction between Alogliptin Benzoate and Human Serum Albumin Using Multi-Spectral Methods and Molecule Docking Technique","authors":"N. Zhang, Jianbo Chen, Zhuowei Han","doi":"10.4236/OALIB.1107283","DOIUrl":"https://doi.org/10.4236/OALIB.1107283","url":null,"abstract":"The interaction of alogliptin benzoate with human serum albumin had been characterized under physiological conditions using multi-spectral methods and molecular docking technique. The work presented in this paper focused on the interaction mechanism, the conformational changes of HSA and the binding sites of alogliptin benzoate with human serum albumin. The binding distance, binding constants, the number of binding sites and the binding forces had been investigated through fluorescence and spectral overlaps. Results indicated the presence of static quenching between alogliptin benzoate and human serum albumin. Moreover, the van der Waals forces and hydrogen bonding drove the binding process. The analysis results of UV–vis absorption spectroscopy, synchronous fluorescence spectrometry, circular dichroism spectroscopy and three-dimensional fluorescence spectroscopy revealed that alogliptin benzoate changed the conformation of human serum albumin. In addition, molecule docking and competitive experimental results suggested the binding sites located at IIA subdomain of human serum albumin. This research is vital to providing reference for studying the pharmacodynamics and pharmacokinetics mechanisms of alogliptin benzoate.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"84 1","pages":"1-16"},"PeriodicalIF":0.0,"publicationDate":"2021-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84749204","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
A Study on Guidance and Incentive Measures for Undergraduate Entrepreneurship 大学生创业的引导与激励措施研究
Pub Date : 2021-05-06 DOI: 10.4236/OALIB.1107422
Junjie Zhao, Xiao-rong Zhao
To encourage college students to start their own businesses, entrepreneurship education must go first. In the entrepreneurship education of college students, we should first understand the motivation of college students to start their own businesses and the reasons why they do not want to start their own businesses, and then give targeted guidance and incentives. By classifying and summarizing the questionnaire survey data, this paper summarizes the main reasons why college students do not want to start their own businesses, as well as the main motivation for college students to start their own businesses, and carries out in-depth analysis, and finally gives targeted guidance and incentive measures for college students to start their own businesses.
鼓励大学生自主创业,创业教育必须放在首位。在大学生创业教育中,首先要了解大学生创业的动机和不愿意创业的原因,然后给予有针对性的指导和激励。本文通过对问卷调查数据进行分类和汇总,总结出大学生不愿意创业的主要原因,以及大学生创业的主要动机,并进行深入分析,最后给出针对性的大学生创业指导和激励措施。
{"title":"A Study on Guidance and Incentive Measures for Undergraduate Entrepreneurship","authors":"Junjie Zhao, Xiao-rong Zhao","doi":"10.4236/OALIB.1107422","DOIUrl":"https://doi.org/10.4236/OALIB.1107422","url":null,"abstract":"To encourage college students to start their own businesses, entrepreneurship education must go first. In the entrepreneurship education of college students, we should first understand the motivation of college students to start their own businesses and the reasons why they do not want to start their own businesses, and then give targeted guidance and incentives. By classifying and summarizing the questionnaire survey data, this paper summarizes the main reasons why college students do not want to start their own businesses, as well as the main motivation for college students to start their own businesses, and carries out in-depth analysis, and finally gives targeted guidance and incentive measures for college students to start their own businesses.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"20 1","pages":"1-9"},"PeriodicalIF":0.0,"publicationDate":"2021-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81613290","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: 5
Sustainable Development Goals (SDG) Target 6.2 in Ethiopia: Challenges and Opportunities 埃塞俄比亚的可持续发展目标6.2:挑战与机遇
Pub Date : 2021-05-06 DOI: 10.4236/OALIB.1107458
Desale Baye
Sanitation is deemed to be a human right. Improved sanitation service access is essential for every community’s socio-economic well-being and sustainable development. However, there has been limited research that has evaluated many current sanitation practices across various areas in Ethiopia. Therefore, the purpose of this paper was to assess the Sustainable Development Goals (SDGs) 6.2 in Ethiopia, concerning major challenges and opportunities available towards achieving SDG targets. The data used to evaluate this review was obtained from WHO/UNICEF Joint Monitoring Programme (JMP) report, Ethiopian Demographic Health Survey (EDHS) data, and scientific journal publications stemming mostly from the last decade, to show the research results on water and sanitation, particularly SDGs 6.2 prospects and challenges to provide a general outlook for policymakers in Ethiopia. As a result, this paper analyzed that even though Ethiopia had substantial progress in improving sanitation facilities in the past decades; its coverage is still one of the lowest throughout the globe. Currently, nearly 70 million people (out of about 115 million people) are using unimproved sanitation facilities in Ethiopia. The main reasons for this lowest achievement are as follows: Firstly, sanitation doesn’t have a specific organizational “home,” implying that roles are disseminated across many sectors. Secondly, the amount of money allocated to the sector is low, and liquid waste disposal facilities are almost non-existent. Thirdly, the sanitation strategy’s implementation is not straightforward. Given the existing state of knowledge, the most important strategies needed to tackle the multilateral problem in Ethiopia will be defining specifically identified institutional accountability, capacity building and awareness creation, clear sanitation resource allocation and sustainable sanitation approach concerned with the protection of the environment. The analysis of challenges and opportunities for sanitation services in Ethiopia might be useful for the improvement of SDG 6.2 in other developing countries.
卫生设施被认为是一项人权。改善环境卫生服务对每个社区的社会经济福祉和可持续发展至关重要。然而,对埃塞俄比亚不同地区的许多现行卫生做法进行评估的研究有限。因此,本文的目的是评估埃塞俄比亚的可持续发展目标(SDGs) 6.2,涉及实现可持续发展目标的主要挑战和机会。用于评估这一审查的数据来自世卫组织/联合国儿童基金会联合监测规划报告、埃塞俄比亚人口健康调查数据以及主要来自过去十年的科学期刊出版物,以显示关于水和卫生设施的研究成果,特别是可持续发展目标6.2的前景和挑战,为埃塞俄比亚的政策制定者提供总体展望。因此,本文分析说,尽管埃塞俄比亚在过去几十年里在改善卫生设施方面取得了实质性进展;它的覆盖率仍然是全球最低的之一。目前,埃塞俄比亚约1.15亿人口中有近7000万人使用未经改善的卫生设施。这一最低成就的主要原因如下:首先,卫生没有一个特定的组织“家”,这意味着角色在许多部门中分散。其次,分配给该部门的资金很少,废液处理设施几乎不存在。第三,卫生战略的实施并不直截了当。鉴于现有的知识状况,解决埃塞俄比亚多边问题所需的最重要战略将是确定具体确定的机构责任、能力建设和提高认识、明确的卫生资源分配和与保护环境有关的可持续卫生办法。对埃塞俄比亚卫生服务面临的挑战和机遇的分析可能有助于其他发展中国家改善可持续发展目标6.2。
{"title":"Sustainable Development Goals (SDG) Target 6.2 in Ethiopia: Challenges and Opportunities","authors":"Desale Baye","doi":"10.4236/OALIB.1107458","DOIUrl":"https://doi.org/10.4236/OALIB.1107458","url":null,"abstract":"Sanitation is deemed to be a human right. Improved sanitation service access is essential for every community’s socio-economic well-being and sustainable development. However, there has been limited research that has evaluated many current sanitation practices across various areas in Ethiopia. Therefore, the purpose of this paper was to assess the Sustainable Development Goals (SDGs) 6.2 in Ethiopia, concerning major challenges and opportunities available towards achieving SDG targets. The data used to evaluate this review was obtained from WHO/UNICEF Joint Monitoring Programme (JMP) report, Ethiopian Demographic Health Survey (EDHS) data, and scientific journal publications stemming mostly from the last decade, to show the research results on water and sanitation, particularly SDGs 6.2 prospects and challenges to provide a general outlook for policymakers in Ethiopia. As a result, this paper analyzed that even though Ethiopia had substantial progress in improving sanitation facilities in the past decades; its coverage is still one of the lowest throughout the globe. Currently, nearly 70 million people (out of about 115 million people) are using unimproved sanitation facilities in Ethiopia. The main reasons for this lowest achievement are as follows: Firstly, sanitation doesn’t have a specific organizational “home,” implying that roles are disseminated across many sectors. Secondly, the amount of money allocated to the sector is low, and liquid waste disposal facilities are almost non-existent. Thirdly, the sanitation strategy’s implementation is not straightforward. Given the existing state of knowledge, the most important strategies needed to tackle the multilateral problem in Ethiopia will be defining specifically identified institutional accountability, capacity building and awareness creation, clear sanitation resource allocation and sustainable sanitation approach concerned with the protection of the environment. The analysis of challenges and opportunities for sanitation services in Ethiopia might be useful for the improvement of SDG 6.2 in other developing countries.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"72 1","pages":"1-28"},"PeriodicalIF":0.0,"publicationDate":"2021-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80903320","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: 5
Dose Load during Angiographic Procedures RCA Stenting 血管造影过程中的剂量负荷
Pub Date : 2021-05-06 DOI: 10.4236/OALIB.1107409
Javor Ivanov
This article is a continuation of the study of the dose load received by an interventional cardiologist during angiographic procedures and particularly during RCA stenting. To calculate the dose load, dosimetric measurements of the effective dose were carried out while working with a Philips Allura Xper FD10 angiographic system in the invasive department of the Special Hospital for Active Treatment in Cardiology, Varna, Bulgaria. The measurements were carried out for the two operating modes of the angiographic system—radio- graphy and pulse fluoroscopy. In order to obtain a clear assessment of the received dose of the principal cardiologist, the measurements were carried out for three positions of the patient table—zero, lowest and highest position, as well as for three control points: “Head”, “Gonads”, “Feet”. In this procedure following projections are used: LAO-cranial—as first basic projection, RAO- cranial—as second basic and Pure Сranial—as third basic projection. For this reason, calculations have been made for each of these projections. The results convincingly show maximum dose load when radiography is used, although the duration of radiography is significantly shorter than the duration of pulse fluoroscopy. A concluded that the position of the patient table is important during the work of the principal cardiologist and the use of individual radiation protection equipment is not only recommended, but should be mandatory, as indicated in both Bulgarian and international legislation.
这篇文章是对介入心脏病专家在血管造影过程中接受的剂量负荷的研究的延续,特别是在RCA支架置入期间。为了计算剂量负荷,在保加利亚瓦尔纳积极治疗心脏病专科医院的侵入科使用Philips Allura Xper FD10血管造影系统对有效剂量进行了剂量学测量。测量进行了两种操作模式的血管造影系统-射线成像和脉冲透视。为了获得对主要心脏病专家接受剂量的明确评估,对患者表零、最低和最高位置的三个位置以及三个控制点:“头”、“性腺”、“脚”进行了测量。在这个过程中使用以下投影:lao -颅-作为第一基本投影,RAO-颅-作为第二基本投影,Pure Сranial-as第三基本投影。因此,对每一项预测都进行了计算。结果令人信服地显示最大剂量负荷时,使用放射照相,虽然放射照相的持续时间明显短于脉冲透视的持续时间。A的结论是,在主要心脏病专家的工作中,病人桌子的位置很重要,正如保加利亚和国际立法所指出的那样,不仅建议使用个人辐射防护设备,而且应该是强制性的。
{"title":"Dose Load during Angiographic Procedures RCA Stenting","authors":"Javor Ivanov","doi":"10.4236/OALIB.1107409","DOIUrl":"https://doi.org/10.4236/OALIB.1107409","url":null,"abstract":"This article is a continuation of the study of the dose load received by an interventional cardiologist during angiographic procedures and particularly during RCA stenting. To calculate the dose load, dosimetric measurements of the effective dose were carried out while working with a Philips Allura Xper FD10 angiographic system in the invasive department of the Special Hospital for Active Treatment in Cardiology, Varna, Bulgaria. The measurements were carried out for the two operating modes of the angiographic system—radio- graphy and pulse fluoroscopy. In order to obtain a clear assessment of the received dose of the principal cardiologist, the measurements were carried out for three positions of the patient table—zero, lowest and highest position, as well as for three control points: “Head”, “Gonads”, “Feet”. In this procedure following projections are used: LAO-cranial—as first basic projection, RAO- cranial—as second basic and Pure Сranial—as third basic projection. For this reason, calculations have been made for each of these projections. The results convincingly show maximum dose load when radiography is used, although the duration of radiography is significantly shorter than the duration of pulse fluoroscopy. A concluded that the position of the patient table is important during the work of the principal cardiologist and the use of individual radiation protection equipment is not only recommended, but should be mandatory, as indicated in both Bulgarian and international legislation.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"93 1","pages":"1-12"},"PeriodicalIF":0.0,"publicationDate":"2021-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90738380","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
Scan Features of Brain Damage during Trauma in Kinshasa, Democratic Republic of Congo: A Case Series Study 刚果民主共和国金沙萨创伤期间脑损伤的扫描特征:一个案例系列研究
Pub Date : 2021-05-06 DOI: 10.4236/OALIB.1107426
Samuel Bula Mbaki, A. Nkodila, M. Lelo, B. Longo
Background and aim: Brain trauma and various neurological disorders represent a significant cause of morbidity and mortality throughout the world. But data relating to this in sub-Saharan Africa is scarce. The aim of the study is to identify traumatic pathologies by CT scan in patients followed in hospitals in Kinshasa, Democratic Republic of Congo. Methods: descriptive cross-sectional study of data from the medical records of patients having performed a brain CT scan covering a period of 24 months at the University Clinics of Kinshasa and at the Biamba Marie Mutombo Hospital. There are three types of study parameters, those relating to socio-demographic data (age, sex, date of the CT scan); those relating to the clinical data and the indications for the examination and the CT data. Results: 746 presented trauma assessment against 2433 patients for a non-traumatic indication. The mean age was 47.1 ± 20.9 years. There was a statistically significant and unequal distribution of the proportions of indications for brain scan according to age groups: the age group < 40 years coinciding exclusively in the traumatic assessment against non-traumatic indications for patients ≥ 60 years of age. Of the many traumatic injuries seen on a brain scan, bone fractures, intracranial hematomas and brain contusions were the most common injuries. Conclusion: traumatic lesions on CT are frequent in Kinshasa; they are characterized by the presence of bone fractures, intracranial hematomas and cerebral contusions.
背景和目的:脑外伤和各种神经系统疾病是全世界发病率和死亡率的重要原因。但撒哈拉以南非洲地区的相关数据很少。本研究的目的是通过CT扫描识别在刚果民主共和国金沙萨医院随访的患者的创伤性病理。方法:对在金沙萨大学诊所和比安巴·玛丽·穆托姆博医院进行为期24个月的脑部CT扫描的患者病历数据进行描述性横断面研究。有三种类型的研究参数,与社会人口统计数据(年龄、性别、CT扫描日期)有关;与临床资料、检查指征及CT资料有关的资料。结果:746例患者对2433例非创伤指征进行了创伤评估。平均年龄47.1±20.9岁。脑扫描指征的比例按年龄组分布有统计学意义且不平等:年龄< 40岁的患者仅在创伤性评估中与非创伤性指征一致≥60岁。在脑部扫描看到的许多创伤性损伤中,骨折、颅内血肿和脑挫伤是最常见的损伤。结论:金沙萨地区CT外伤性病变较多;他们的特点是存在骨折,颅内血肿和脑挫伤。
{"title":"Scan Features of Brain Damage during Trauma in Kinshasa, Democratic Republic of Congo: A Case Series Study","authors":"Samuel Bula Mbaki, A. Nkodila, M. Lelo, B. Longo","doi":"10.4236/OALIB.1107426","DOIUrl":"https://doi.org/10.4236/OALIB.1107426","url":null,"abstract":"Background and aim: Brain trauma and various neurological disorders represent a significant cause of morbidity and mortality throughout the world. But data relating to this in sub-Saharan Africa is scarce. The aim of the study is to identify traumatic pathologies by CT scan in patients followed in hospitals in Kinshasa, Democratic Republic of Congo. Methods: descriptive cross-sectional study of data from the medical records of patients having performed a brain CT scan covering a period of 24 months at the University Clinics of Kinshasa and at the Biamba Marie Mutombo Hospital. There are three types of study parameters, those relating to socio-demographic data (age, sex, date of the CT scan); those relating to the clinical data and the indications for the examination and the CT data. Results: 746 presented trauma assessment against 2433 patients for a non-traumatic indication. The mean age was 47.1 ± 20.9 years. There was a statistically significant and unequal distribution of the proportions of indications for brain scan according to age groups: the age group < 40 years coinciding exclusively in the traumatic assessment against non-traumatic indications for patients ≥ 60 years of age. Of the many traumatic injuries seen on a brain scan, bone fractures, intracranial hematomas and brain contusions were the most common injuries. Conclusion: traumatic lesions on CT are frequent in Kinshasa; they are characterized by the presence of bone fractures, intracranial hematomas and cerebral contusions.","PeriodicalId":19593,"journal":{"name":"Open Access Library Journal","volume":"103 1","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2021-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87983235","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
Open Access Library Journal
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