BAU Journal - Science and Technology最新文献_第5页

OPTIMIZATION OF SUPERMARKET CHECKOUT COUNTERS USING INTEGRATED GREEDY ALGORITHM 基于积分贪心算法的超市收银台优化

BAU Journal - Science and Technology Pub Date : 2021-06-30 DOI: 10.54729/2959-331x.1036

Ramzi Fayad, Hadi Abou Chakra

引用次数: 0

UNSTEADY ROTATIONAL MOTION OF A MICROPOLAR FLUID INSIDE A RIGHT CIRCULAR CYLINDER USING STATE SPACE APPROACH 用状态空间方法研究微极流体在右圆柱内的非定常旋转运动

BAU Journal - Science and Technology Pub Date : 2021-06-30 DOI: 10.54729/2706-784x.1026

S. Slayi, E. Ashmawy

引用次数: 0

A NOVEL PROBABILISTIC FRAMEWORK OF RC CORRODED STRUCTURES UNDER DYNAMIC LOADING 动力荷载作用下钢筋混凝土腐蚀结构的新型概率框架

BAU Journal - Science and Technology Pub Date : 2021-06-30 DOI: 10.54729/2706-784x.1041

Rawan Mouin Mashmoushy, Wael Slika, Adel Elkordi

引用次数: 0

TECHNOLOGY OF MOBILITY HUBS IN AUTOPIAN FUTURISTIC CITIES 自动驾驶未来城市的交通枢纽技术

BAU Journal - Science and Technology Pub Date : 2021-06-30 DOI: 10.54729/2959-331x.1037

M. Abdallah, Marwan Iskandar Halabi, H. Mohsen, M. Youssef

引用次数: 1

PROPERTIES OF CONCRETE CONTAINING CRUSHED LIMESTONE AS TOTAL REPLACEMENT OF NATURAL SAND AND RECYCLED ENGINE OIL 石灰石碎石完全替代天然砂和回收机油的混凝土性能

BAU Journal - Science and Technology Pub Date : 2021-06-30 DOI: 10.54729/2959-331x.1052

Mohammad El Bast, J. Khatib, O. Baalbaki, A. Elkordi

引用次数: 1

MORINGA OLEIFERA LEAVES AQUEOUS EXTRACT INDUCE APOPTOSIS IN HT29 CELL LINE 辣木叶水提液诱导ht29细胞凋亡

BAU Journal - Science and Technology Pub Date : 2020-12-30 DOI: 10.54729/2706-784x.1048

F. Reda, J. Borjac, J. Usta

{"title":"MORINGA OLEIFERA LEAVES AQUEOUS EXTRACT INDUCE APOPTOSIS IN HT29 CELL LINE","authors":"F. Reda, J. Borjac, J. Usta","doi":"10.54729/2706-784x.1048","DOIUrl":"https://doi.org/10.54729/2706-784x.1048","url":null,"abstract":"Moringa oleifera (MO) tree has been recognized for the nutritional and medicinal values, attributing antiinflammatory, antioxidants, and antidiabetic activities of the alcoholic and/or water extracts to its various parts. Recent research has focused on therapeutic anti-cancerous effects of the water extract of MO leaves (MOE), commonly consumed as hot beverage. In-vitro cytotoxicity on esophageal, lung, and breast cancer cells were reported by MOE. The aim in this study is to investigate the anti-cancerous potential of MOE on the colon carcinoma HT29 cells. MO water extract (MOE) was prepared at concentrations (0.1%-0.5%). MOE anti-proliferative effect on HT29-cells was assessed by measuring cellular viability using trypan blue assay. MOE cytotoxicity was further examined by monitoring the change in levels of ROS (NBT assay), ATP (Luciferase assay), and LDH release (cytotoxicity assay) and on depolarization of mitochondrial membrane potential (Mito PTTMJC-1). Protective effect of N-Acetyl cysteine and catalase were assayed. Cell cycle analysis and Annexin-V/PI staining were also performed to detect cell death. Our result showed that MOE induced a dose and time-dependent decrease in viability; increase in ROS and LDH release; dissipation of mitochondrial membrane potential with concomitant decrease in ATP level. In addition, we obtained an increase in preG0 and late apoptotic events. Pretreatment with the antioxidant N-acetyl cysteine suppressed completely LDH release and restored partially and significantly cell viability while decreasing ROS level. Catalase was not protective. MOE also induced cell death with related colon cancer cell lines: Caco2, SW837, SW948, and HCT116. The induced apoptosis in HT29 cells and related CCC identified MOE with anti-cancerous therapeutic potential.","PeriodicalId":124185,"journal":{"name":"BAU Journal - Science and Technology","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130247530","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

PHOTOLUMINESCENCE SPECTROSCOPIC STUDIES OF MN2O3/CO3O4-GLUCOSE/LACTOSE COMPLEXES mn2o3 / co304 -葡萄糖/乳糖配合物的光致发光光谱研究

BAU Journal - Science and Technology Pub Date : 2020-12-30 DOI: 10.54729/2706-784x.1047

Alaa Abdallah, Jamalat Al Boukhari, Rana Najjar

{"title":"PHOTOLUMINESCENCE SPECTROSCOPIC STUDIES OF MN2O3/CO3O4-GLUCOSE/LACTOSE COMPLEXES","authors":"Alaa Abdallah, Jamalat Al Boukhari, Rana Najjar","doi":"10.54729/2706-784x.1047","DOIUrl":"https://doi.org/10.54729/2706-784x.1047","url":null,"abstract":"As nanoparticles serve as mediators in the electron transfer between biomolecules and a biosensor’s electrode surface, this study is dedicated to investigating Mn2O3 and Co3O4 nanoparticles and their photoluminescence effect that play a critical role in sensing glucose and lactose. The chemical coprecipitation method was adopted for preparing the nanoparticles that were characterized by X-Ray Diffraction, Transmission Electron Microscope, Fourier Transform Infrared spectroscopy, Energy Dispersive X-ray, UV-vis spectroscopy, and Vibrating Sample Magnetometry. It was found that the obtained Mn2O3 and Co3O4 nanoparticles were successfully prepared, with a crystallite size of 65.91 and 58.00 nm, respectively. The high specific surface area of 1.2808 ́104 and 0.5711 ́104 m2/kg was noticed for the Mn2O3 and Co3O4 nanoparticles that exhibited highly agglomerated cubic and spherical nanoparticles, respectively. The energy gap, Urbach energy, and steepness parameter were obtained (1.72 eV, 1.049 eV and 24.644 ́10-3 for Mn2O3 and 1.285/2.165 eV, 2.893 eV and 8.936 ́10-3 for Co3O4) and discussed. Antiferromagnetism and weak ferromagnetism were detected for Mn2O3 and Co3O4 nanoparticles, respectively, with higher saturation magnetization for Mn2O3 (2.435 emu/g). Moreover, the non-enzymatic glucose and lactose biosensor’s compatibility was evaluated utilizing photoluminescence changes. The glucose/lactose interactions with Mn2O3 /Co3O4 nanoparticles were measured by photoluminescence spectroscopy, at room temperature, in a phosphate buffer medium. The addition of Mn2O3 nanoparticles to glucose and lactose demonstrated higher shifts in the photoluminescence intensities with larger binding constants (1625 and 1840 M-1) and more negative Gibbs energy (-17.608 and -18.753 kJ.mol-1). These characteristics promote the investigation of Mn2O3 nanoparticles in glucose and lactose biosensors.","PeriodicalId":124185,"journal":{"name":"BAU Journal - Science and Technology","volume":"63 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123462196","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

THE ASSESSMENTS OF INTERNET-BASED TECHNOLOGY USE BY UNIVERSITY ACADEMIC MEMBERS 大学学术成员对互联网技术使用情况的评估

BAU Journal - Science and Technology Pub Date : 2020-12-30 DOI: 10.54729/2959-331x.1035

M. Alghamdi

{"title":"THE ASSESSMENTS OF INTERNET-BASED TECHNOLOGY USE BY UNIVERSITY ACADEMIC MEMBERS","authors":"M. Alghamdi","doi":"10.54729/2959-331x.1035","DOIUrl":"https://doi.org/10.54729/2959-331x.1035","url":null,"abstract":"Social networking applications (SNAs), as technologies that rely on internet infrastructure, are widely used as platforms for user interaction, content creation and social communication. However, in recent years, SNAs have been used in the context of teaching and learning, and this aspect, as well as others, has attracted research attention. Limited research has investigated the motivations and barriers to teaching with SNAs in higher education, and so this study sought to examine the purposes, motivations and barriers associated with SNA use in education among academic members at Albaha University, Saudi Arabia. A quantitative research design involving a sample of academic members from various faculties at Albaha University (n=105) was implemented to illuminate current SNA usage patterns, usage purposes and perceptions of SNAs in education. The results indicated that 86.7 per cent of the academic members had used SNAs for educational purposes. Academic members were positively influenced by the use of these platforms in teaching and learning; they suggested that these emerging technologies play a vital role in student outcomes. The main motivating factor for SNA usage related to the opportunities they afford for seamless and rapid communication with students, while the principal barrier to SNA usage was the possibility of dissemination of unreliable information via SNAs.","PeriodicalId":124185,"journal":{"name":"BAU Journal - Science and Technology","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131235705","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

WATERPIPE: A GLOBAL ALARMING PROBLEM 水管:一个令人担忧的全球性问题

BAU Journal - Science and Technology Pub Date : 2020-12-30 DOI: 10.54729/2706-784x.1049

T. Houri, B. Osta, Sara Mobayed, Rayan Farha, Mazher Issa

{"title":"WATERPIPE: A GLOBAL ALARMING PROBLEM","authors":"T. Houri, B. Osta, Sara Mobayed, Rayan Farha, Mazher Issa","doi":"10.54729/2706-784x.1049","DOIUrl":"https://doi.org/10.54729/2706-784x.1049","url":null,"abstract":"Waterpipe popularity has increased significantly in the recent decades to become the major cause of death worldwide. This practice, which is also known as hookah, shisha and Narghile that is based on tobacco burning, increases the percentage of tobacco smokers especially among young people, due to several factors such as the attracting effect of sweetened tobacco, the marketing role and the social acceptance of waterpipe. A literature review was constructed using \"Pub med\" as a searching tool to confirm by studies the differences in adverse effects between waterpipe and cigarette by analyzing the toxicant’s levels generated from them, evaluating the smoke volume which is affected by the duration of smoking, the puffing intensity, and investigating the factors which enhance the toxicity of waterpipe such as the type of the hose and charcoal used during smoking practice. In addition, highlighting the misconceptions regarding the protective effect of water bubbling which has been considered to be a filtering factor for removing several toxicants, showing the type of microorganisms which colonize the different parts of waterpipe device and how they can be transmitted between smokers, focusing on their health hazards and their effects on waterpipe smokers. Finally, emphasizing the importance of specific regulatory policies in controlling the widespread of waterpipe preventing its dangerous consequences and saving human life","PeriodicalId":124185,"journal":{"name":"BAU Journal - Science and Technology","volume":"201 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-12-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121858267","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

EFFECT OF USING CATHODE-RAY TUBES (CRT) WASTE GLASS ON CONCRETE PROPERTIES 阴极射线管(crt)废玻璃对混凝土性能的影响

BAU Journal - Science and Technology Pub Date : 2020-12-30 DOI: 10.54729/2706-784x.1044

Jad Bawab, J. Khatib, Ali Jahami, S. Kenai, A. Elkordi

引用次数: 5