Current Approaches in Science and Technology Research Vol. 11最新文献

The First Innovation to Record Sound 第一次记录声音的创新

Current Approaches in Science and Technology Research Vol. 11 Pub Date : 2021-07-16 DOI: 10.9734/BPI/CASTR/V11/3069F

Yerodin L. Carrington

引用次数: 0

Bayesian Equilibria in the Penalty-Kick Game 点球博弈中的贝叶斯均衡

Current Approaches in Science and Technology Research Vol. 11 Pub Date : 2021-07-16 DOI: 10.9734/BPI/CASTR/V11/3188F

Germán Colomá

引用次数: 0

Effect of HAART on Zinc Level in HIV Positive Women: A Prospective Cross-sectional Study at a Tertiary Institution in Midwestern part of Nigeria HAART对HIV阳性妇女锌水平的影响:尼日利亚中西部一所高等院校的前瞻性横断面研究

Current Approaches in Science and Technology Research Vol. 11 Pub Date : 2021-07-16 DOI: 10.9734/BPI/CASTR/V11/10691D

Victoria N. Mokwenye, R. Mordi

{"title":"Effect of HAART on Zinc Level in HIV Positive Women: A Prospective Cross-sectional Study at a Tertiary Institution in Midwestern part of Nigeria","authors":"Victoria N. Mokwenye, R. Mordi","doi":"10.9734/BPI/CASTR/V11/10691D","DOIUrl":"https://doi.org/10.9734/BPI/CASTR/V11/10691D","url":null,"abstract":"This study aimed at establishing the effects of highly active antiretroviral therapy (HAART) on the distribution of zinc in the body of HIV seropositive women in their reproductive ages in both follicular and luteal phases of their menstrual cycle. Age ranges of 18-40 years (mean 29years) were considered. HIV is a retrovirus which slowly but steadily attacks and destroys vital organs of the immune system and also depletes essential elements including iron and zinc. The study was prospective, cross sectional and targeted for a particular group in a tertiary institution in Midwestern Nigeria. A targeted population of 100 HIV seropositive women of reproductive age group and 50 seronegative women of same age group as control were recruited into the study. They were recruited before the commencement of HAART and monitored for nine months at three months interval after initiation. The parameter that was measured was zinc distribution in both follicular and luteal phases of their menstrual cycles. Mean values and their standard errors of means (SEM) were computed on Microcal Origin 5.0 statistical software. Comparism of means was done using ANOVA and Student t-test. HAART significantly (P<0.05) elevated zinc levels in the first three months of therapy in both phases and later decreased gradually till the ninth month, with higher reductions recorded in the luteal phases at all times. Conclusion: In this group of young reproductive women, HAART led to elevated values of zinc in the first three months (repletion) of therapy with subsequent decrease thereafter and at all stages, lower in the luteal phase than follicular phase showing a tie with the type of sex hormones.","PeriodicalId":199049,"journal":{"name":"Current Approaches in Science and Technology Research Vol. 11","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133856842","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

Study on Increasing the Solar Cell Efficiency by Using Glass Balls 利用玻璃球提高太阳能电池效率的研究

Current Approaches in Science and Technology Research Vol. 11 Pub Date : 2021-07-16 DOI: 10.9734/BPI/CASTR/V11/10155D

A. Naji, Khalid Abdul Hussein Hafedh, Kreem Idan Fadheel

引用次数: 0

Study on Two-Station Passive Locating Solution Independent of the Baseline Length 不依赖基线长度的双站无源定位方法研究

Current Approaches in Science and Technology Research Vol. 11 Pub Date : 2021-07-16 DOI: 10.9734/BPI/CASTR/V11/2948F

Tao Yu

引用次数: 0

Implementation of Standalone Dynamic Solar Array Fed PMSM Drive Using DC-DC Converter for the Reduction of Switching Losses 利用DC-DC变换器实现独立动态太阳能阵列馈动永磁同步电机驱动以降低开关损耗

Current Approaches in Science and Technology Research Vol. 11 Pub Date : 2021-07-16 DOI: 10.9734/BPI/CASTR/V11/11307D

C. Muniyandi, S. Rajagopal, C. Marimuthu

引用次数: 0

Recommended Timeframe for Restoring Drinking Water Supply in Malawi 在马拉维恢复饮用水供应的建议时间表

Current Approaches in Science and Technology Research Vol. 11 Pub Date : 2021-07-16 DOI: 10.9734/BPI/CASTR/V11/10917D

Asumani Ungwe

引用次数: 0

Bamboo Reinforced Panels for Fence Walls 栅栏墙用竹材加固板

Current Approaches in Science and Technology Research Vol. 11 Pub Date : 2021-07-16 DOI: 10.9734/BPI/CASTR/V11/6826D

S. Suppiah

{"title":"Bamboo Reinforced Panels for Fence Walls","authors":"S. Suppiah","doi":"10.9734/BPI/CASTR/V11/6826D","DOIUrl":"https://doi.org/10.9734/BPI/CASTR/V11/6826D","url":null,"abstract":"The construction industry consumes large quantity of steel and emits carbon leading to global warming, which is a dampener for sustainable growth all over the world. As an alternative to steel, bamboo has been tried as reinforcement in different countries (e. g., Indonesia, China, Malaysia, India) on a limited scale only. Presently, fence walls erected with precast steel reinforced concrete (SRC) panels are widely in demand due to saving in time and simple craftsmanship when compared to conventional fence walls erected with materials such as stone, brick or barbed wire. Preparation of SRC panels has become a cottage industry due to a higher demand. However, these panels are prepared without adhering to any specification or standards. This work aims at exploring the methods of adopting bamboo as an alternative to steel for erecting fence walls. As many as thirty (30) bamboo reinforced concrete (BRC) slabs of dimension 1000 mm x 300 mm x 50 mm (length: height: thickness) were cast in the laboratory adopting M20 mix. Fifteen (15) slabs each were cast with (i) bambusa balcooa and (ii) bambusa polymorpha species as reinforcement with a pretreatment using coal tar creosote. The slabs were tested using (a) ultrasonic instrument to assess the quality of concrete used and (b) universal testing machine to establish the load versus deflection characteristics. As a comparative study these tests were repeated on precast, SRC panels, procured from a locally manufacturing unit. The test results reveal that the quality of concrete in BRC slabs was better than that of the SRC slabs. The BRC slabs with either type of species failed at approximately 50% of the magnitude of load taken by SRC slabs at failure. The deflection and the associated crack width also followed the same trend. The cost analysis performed indicates that BRC slabs are cheaper by 30 to 35% in comparison to SRC panels. Therefore, it is recommended to adopt BRC slabs for erecting fence walls and barns leading to benefits such as, sustainable growth of the environment, wider cultivation of bamboo species and more rural employment.","PeriodicalId":199049,"journal":{"name":"Current Approaches in Science and Technology Research Vol. 11","volume":"150 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122467878","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

Description of an Anatomical Structure and Changes of Microstructure through the Grave Yard Test on Treated and Untreated Three-Year-Old Gigantochloa scortechinii via Electron Microscopy 电镜观察3年生处理和未处理大褐藻的解剖结构和墓地试验的显微结构变化

Current Approaches in Science and Technology Research Vol. 11 Pub Date : 2021-07-16 DOI: 10.9734/BPI/CASTR/V11/2610F

M. S. Sulaiman, R. Wahab, Mohammad Haziq Razak, N. Mokhtar, T. Edin, R. S. M. Ghani

{"title":"Description of an Anatomical Structure and Changes of Microstructure through the Grave Yard Test on Treated and Untreated Three-Year-Old Gigantochloa scortechinii via Electron Microscopy","authors":"M. S. Sulaiman, R. Wahab, Mohammad Haziq Razak, N. Mokhtar, T. Edin, R. S. M. Ghani","doi":"10.9734/BPI/CASTR/V11/2610F","DOIUrl":"https://doi.org/10.9734/BPI/CASTR/V11/2610F","url":null,"abstract":"The microstructures of selected tropical bamboo species were investigated. Harvested three-year-old Gigantochloa scortechinii segregated into different locations and positions. Bamboo samples were treated using copper-chrome-arsenic (CCA), ammonia-copper-quaternary (ACQ), and a borax-boric-acid (BBA) through the vacuum pressure, sap displacement, and soaking technique. The samples then undergo using Electron Microscopy (EM), especially Scanning Electron Microscope (SEM) and Transmission Electron Microscope (TEM) as an efficient tools for microstructure viewing. The coating process and spurr resin techniques followed for SEM and TEM, respectively. The study focused on the changes of vascular bundles, fibers, and parenchyma cells located at the internodes and nodes; also at the outer, middle, and inner sections of natural and preservatives treated bamboos. Found that the bamboo species exhibit similarity in their characteristics but the anatomical features and microstructure were different. This paper also describes the effects of treated and untreated samples through the ground contact test using SEM and TEM micrographs.","PeriodicalId":199049,"journal":{"name":"Current Approaches in Science and Technology Research Vol. 11","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-07-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130262518","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

Applications of Optical Interferometer Techniques for Precision Measurements of Changes in Temperature, Growth and Refractive Index of Materials: A Brief Review 光学干涉仪技术在精确测量材料温度、生长和折射率变化中的应用综述

Current Approaches in Science and Technology Research Vol. 11 Pub Date : 2021-07-16 DOI: 10.9734/BPI/CASTR/V11/11177D

B. R. Reddy

引用次数: 0