Journal of analytical techniques and research最新文献_第2页

Assessment of the Agglutination Test for the Identification of Staphylococcus Aureus Isolates 鉴定金黄色葡萄球菌分离物的凝集试验的评价

Journal of analytical techniques and research Pub Date : 2022-01-01 DOI: 10.26502/jatr.31

Z. Rakotovao-Ravahatra, Jimmy Anders Antilahy, Joely Nirina Rakotovao-Ravahatra, Andriamiadana Luc Rakotovao

{"title":"Assessment of the Agglutination Test for the Identification of Staphylococcus Aureus Isolates","authors":"Z. Rakotovao-Ravahatra, Jimmy Anders Antilahy, Joely Nirina Rakotovao-Ravahatra, Andriamiadana Luc Rakotovao","doi":"10.26502/jatr.31","DOIUrl":"https://doi.org/10.26502/jatr.31","url":null,"abstract":"Background: Staphylococcus aureus are among the most important and several pathogens in human infections. Objectives: The objectives of this study are to evaluate the efficacy of the agglutination test in the detection of Staphylococcus aureus in the laboratory and to identify the factors associated with staphylococcal infections. Methods: It is a prospective study of 100 isolates of staphylococci in a period of nine months from May 2021 to January 2022 in the University Hospital of Befelatanana. Results: Among of the 100 isolates of staphylococci, 49 (49%) were represented by Staphylococcus aureus. Concerning the prediction performance of the agglutination test, it has a sensitivity of 93.8%, a specificity of 100%, a positive predictive value of 100% and a negative predictive value of 94.7%. Concerning the associated factors, the men (63%) (p=0.002), the patients aged 40 to 59 years (63%) (p=0.3; NS) and with suppuration (75%) (p=0.004) were the most affected by Staphylococcus aureus. Moreover, Staphylococcus aureus was often identified in pus samples (72.4%) (p=0.0009). Conclusion: In brief, agglutination test is a good test and can replace the standard gold test for the detection of Staphylococcus aureus.","PeriodicalId":93773,"journal":{"name":"Journal of analytical techniques and research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69348045","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 Most Cited Articles in Neuroimaging for Depression: A Bibliometric Analysis of the Top 100 Most Highly Cited Articles Between 1992 and 2020 抑郁症神经影像学中被引用最多的文章:1992年至2020年间被引用最多的100篇文章的文献计量学分析

Journal of analytical techniques and research Pub Date : 2022-01-01 DOI: 10.26502/jatr.32

Mustafa Salimeen, A. Issotina Zibrila, Mazen Musa

{"title":"The Most Cited Articles in Neuroimaging for Depression: A Bibliometric Analysis of the Top 100 Most Highly Cited Articles Between 1992 and 2020","authors":"Mustafa Salimeen, A. Issotina Zibrila, Mazen Musa","doi":"10.26502/jatr.32","DOIUrl":"https://doi.org/10.26502/jatr.32","url":null,"abstract":"Objectives: The goal of this study was to assess the current state and trends in neuroimaging for depression over the last four decades, using bibliometric analysis to give researchers fresh ideas for the future study area. Methods: The Web of Science Core Collection was used to pull papers about neuroimaging for depression published between 1992 and 2021. We utilized the included articles to look at data on neuroimaging and depression publications, countries, institutions, cited journals, cited authors, cited references, keywords, and citation bursts. Results: From 1992 to 2021, 5153 publications were pulled. In these last four decades, we selected the most prestigious journals, countries, institutions, and authors in neuroimaging modalities in depression. The keyword \"major depression disorder\" came in first for research discoveries with the most elevated citation burst. \"Neuroimaging,\" \"depression,\" \"bipolar,\" \"unipolar,\" and \"anxiety\" were the five hot themes in neuroimaging on depression. Conclusions: The findings of this bibliometric analysis provide insight into current research patterns in neuroimaging for depression, as well as the present status and trends of the last four decades, which may aid investigators in determining the field's current status hotspots, and frontier tendencies.","PeriodicalId":93773,"journal":{"name":"Journal of analytical techniques and research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367261","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

Ammonia-Nitrogen Adsorption by Melon Rind 瓜皮对氨氮的吸附研究

Journal of analytical techniques and research Pub Date : 2022-01-01 DOI: 10.26502/jatr.23

Hikmatullah Ahmadi, Syed Sanaullah Hbibi

引用次数: 0

Nitrogen Gas Laser Filament Plasma Kinetic System Stability Analysis under Parameter Variation 参数变化下氮气激光灯丝等离子体动力学系统稳定性分析

Journal of analytical techniques and research Pub Date : 2021-01-01 DOI: 10.26502/jatri.022

Ofer Aluf Netanya

{"title":"Nitrogen Gas Laser Filament Plasma Kinetic System Stability Analysis under Parameter Variation","authors":"Ofer Aluf Netanya","doi":"10.26502/jatri.022","DOIUrl":"https://doi.org/10.26502/jatri.022","url":null,"abstract":"A nitrogen laser is a gas laser operating in the ultraviolet range (typically 337.1 nm) using molecular nitrogen as its gain medium, pumped by an electrical discharge. It is efficient sources for laserinduced fluorescence and photochemistry and general spectroscopy. There is a model for a singlepass, discharge type standoff nitrogen laser initiated by a femtosecond filament in nitrogen gas. A Nitrogen gas laser filament plasma kinetic system is described by the set of plasma kinetic equations which associated with rate equations for the population of the lasing levels and number of emitted photons. The change of concentration of different neural and ionic atomic and molecular species in the filament plasma is described by set of rate equation, Ns is the density of species of type s, and Gs, Ls are the relevant generation and loss rates. T, Te, and Tvibr are gas, electronic, and vibrational temperatures, respectively. The concentration of system gas is not balanced and Te≈ Tvibr. T parameters transform to T→TE+Ω∙√T; TEN, Ω R. We discuss the system stability and stability switching for different values of TE and Ω parameter. There is a practical guideline that combines graphical information with analytical work to effectively study the local stability of models involving dependent parameters. The stability of a given steady state is determined by the graphs of some function of TE and Ω parameters.","PeriodicalId":93773,"journal":{"name":"Journal of analytical techniques and research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367362","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

On the Size Dependence of the Surface Tension for Micro- and Nanocylinder 微、纳米圆柱体表面张力的尺寸依赖性研究

Journal of analytical techniques and research Pub Date : 2021-01-01 DOI: 10.26502/jatri.021

Serghei A. Baranov

引用次数: 1

Osmotic Dehydration of Garden Egg (Solanum aethiopicum): the Shrinkage and Mass Transfer Phenomena 园蛋(Solanum aethiopicum)渗透脱水:收缩和传质现象

Journal of analytical techniques and research Pub Date : 2020-01-01 DOI: 10.26502/jatri.009

Adekeye Dk, Aremu Oi, O. Popoola, Fadunmade Eo, Adedotun Is, Araromi Aa

{"title":"Osmotic Dehydration of Garden Egg (Solanum aethiopicum): the Shrinkage and Mass Transfer Phenomena","authors":"Adekeye Dk, Aremu Oi, O. Popoola, Fadunmade Eo, Adedotun Is, Araromi Aa","doi":"10.26502/jatri.009","DOIUrl":"https://doi.org/10.26502/jatri.009","url":null,"abstract":"Osmotic dehydration is usually employed to lower the water activity of fruits and vegetables and thus has a wide range of application in the food preservation. This study investigates the osmotic dehydration of garden egg (Solanum aethiopicum) using sodium chloride solution (NaCl) of varying concentration (20, 40 and 60 %w/w) as osmotic solutions. Different parameters such as percentage water loss (%WL), weight reduction (%WR) and solid gain (%SG) were investigated at different solution temperature (25, 35, 45, 55, and 65°C), agitation time (20, 40, 60, 80, 100, 120, 140, 160 and 180 min) and osmotic solution concentration (20, 40 and 60 %w/w) to ascertain the optimum dehydration performance of the process. The performance efficiency of the process was evaluated at different osmotic solution concentration (20, 40 and 60 %w/w) with respect to time (20-180 min) at constant temperature (40 OC). The performance efficiency of the process was also evaluated at different osmotic solution concentration (20, 40 and 60 %w/w) with respect to temperature (25, 35, 45, 55, and 65°C) at constant time (180 min). The results of this study showed that %SG and %WL increased with increase in concentration with respect to time whereby the optimum values for these parameters being 157% and 45.80% respectively were achieved at 60 %w/w osmotic solution concentration, while optimum %WR (34.70%) with respect to time was achieved at J Anal Tech Res 2020; 3 (1): 1-17 DOI: 10.26502/jatri.009 Journal of Analytical Techniques and Research 2 40 %ww osmotic solution concentration. Therefore, the order of %SG and %WL by the garden egg with respect to time was 60 > 40 > 20 %w/w. The optimum %SG, %WL and %WR were achieved at 65 oC in 60 %w/w osmotic solution with the values of 133, 53.11 and 40.10% respectively. The results from this study therefore showed that osmotic dehydration could potentially reduce water activity of garden egg.","PeriodicalId":93773,"journal":{"name":"Journal of analytical techniques and research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"69367329","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

Application of the Handshaking Lemma in the Dyeing Theory of Graph 握手引理在图染色理论中的应用

Journal of analytical techniques and research Pub Date : 2019-01-01 DOI: 10.26502/jatri.008

Roland Forson, Cai Guanghui, Richmond Afotey Nii Okle, Daniel Ofori Kusi, Elise Hamunyela

引用次数: 1

Antibiotic Resistant Pattern of Bacteria Isolated from Faecal Pellets of Supella longipalpa (Cockroach) Found in Akungba Akoko, Ondo State, Nigeria 尼日利亚翁多州Akungba Akoko长脚大蠊粪便颗粒中分离细菌的耐药模式

Journal of analytical techniques and research Pub Date : 2019-01-01 DOI: 10.26502/jatri.003

Osuntokun Oludare Temitope,, Komolafe Tobiloba Emmanuel

引用次数: 0

Graphene Implants Can Hear Your Brain Whisper 石墨烯植入物可以听到你的大脑低语

Journal of analytical techniques and research Pub Date : 2019-01-01 DOI: 10.26502/jatri.001

D. R, Rajajeyakumar M, A. V

引用次数: 0

The Distribution Properties of Two-Parameter Exponential Distribution Order Statistics 双参数指数分布阶统计量的分布性质

Journal of analytical techniques and research Pub Date : 2019-01-01 DOI: 10.26502/jatri.002

Roland Forson, Cai Guanghui, Samuel Ofori, O. Nweit, Daniel Ofori Kusi

引用次数: 1