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Physicochemical and Microbiological Properties of Bissap (Hibiscus sabdariffa) and Ginger (Zingiber officinale (L) Rose) Juices Sold in the Western Part of Abidjan (Côte d’Ivoire)

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Open Journal of Applied Sciences 2022年第6期12卷 964-976页

作者： Gnamien Marcel Ahon Gbouhoury Eric-Kévin Bolou Mamadou Fofana Kouakou Ernest Amoikon national pedagogical institute for technical and professional education (NPTPE) Abidjan C&ocirc te d’Ivoire Biology and Health Laboratory UFR Biosciences University Félix HOUPHOU&Euml T-BOIGNY Abidjan C&ocirc te d’Ivoire national Floristic Center UFR Biosciences University Félix HOUPHOU&Euml T-BOIGNY Abidjan C&ocirc te d’Ivoire

Juices made from the calyx of Hibiscus sabdariffa (Malvaceae), commonly called Bissap, and the rhizome of Zingiber officinale (Zingiberaceae), known as Gnamankoudji, are widely consumed in Côte d'Ivoire. The artisanal preparation of these juices often makes their quality problematic. The aim of this study is to determine some physicochemical and microbiological properties of these drinks sold in the city of Abidjan. To do this, samples of Bissap and Gnamankoudji juices were collected near schools in the Mamie Adjoua (Yopougon) and Abobodoumé (Attécoubé) districts. Physico-chemical and microbiological analyses were performed on these collected samples. The results show that the Bissap and Gnamankoudji juices have an acid pH (2.47 and 3.71), a low protein content (0.78% and 2.11%) and a high water content (80.13% and 85.21%), respectively. The reducing sugar content ranged from 1.20% to 3.34%, with high total sugar (695 mg/mL and 812 mg/mL), low ash (0.70 ± 0.07;0.91 ± 0.01). On the other hand, these juices contain variable concentrations of minerals from one site to another (magnesium, calcium, phosphorus, potassium and iron). Potassium is the most abundant mineral element, followed by phosphorus and magnesium. Moreover, it is observed that the Gnamankoudji juices contain vitamin C (4.67 to 5.58 mg/100mL), contrary to the Bissap juice. The microbiological analysis indicates the presence of aerobic mesophilic germs (AMG) but a total absence of pathogenic germs in all juices. The important presence of nutrients and the total absence of pathogenic germs in these drinks justify their regular consumption by the population.

关键词： Juice Hibiscus sabdariffa Zingiber officinale Chemical Composition Microbiology

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The Training of Future Teachers in Ukraine and China

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Frontiers of education in China 2018年第2期13卷 288-314页

作者： Liubov HUNKO Nataliia PAZIURA Katerina SHEVCHENKO institute of education Studies and Adult education National Academy of Pedagogical Sciences of UkraineKyiv 02000Ukraine Department of Aviation English National Aviation University03058 KyivUkraine

This paper explores distinctive features of Bachelor of education(***.)training at several well known Ukrainian and Chinese *** analysis was performed taking into consideration important criteria in the educational process of the degree programs(legislative,social,organizational,technological).The Chinese experience is of particular interest to Ukrainian educators because of China’s ancient history and educational *** changes took place in the education systems of both countries in the period of transition to a market-based economy in the 1990s and to knowledge-based *** contribution of the educational system to fast economic development of China has brought the county to second place among the largest economies in the *** authors found similarities in the documentation on the organization of educational processes at the universities,the shared purpose of the training,the use of traditional forms of education,and the emphasis on the practical part of the *** the same time,different features were found in the content of theoretical training,the organization of practical training,the approaches to innovation,the social benefits provided to teachers,the prestige of the teaching profession,principles of moral education,as well as financial and technical *** authors considered a number of progressive ideas in China’s ***,the implementation of which,at national and institutional levels in Ukraine,might contribute considerably to the modernization of pedagogical education.

关键词： Bachelor of education(B.Ed.) university teacher pedagogical education comparative analysis

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Effects of Methanolic and Aqueous Extracts of Griffonia simplicifolia (Fabaceae) on the Inhibition of Falciformation of Human Hb SS Erythrocytes

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Open Journal of Applied Sciences 2023年第1期13卷 24-35页

作者： Joel Akakpo-Akue Gnamien Marcel Ahon Tatiana Kangah Mireille Kplé Loukou Marie Louise Djaha Fofie Yvette Sanogo Ibrahime Bahi Calixte Djaman Allico Joseph Laboratory of Biology and Health UFR Biosciences Université Félix Houphou&euml t-Boigny (UFHB) Abidjan C&ocirc te d’Ivoire national pedagogical institute of technical and professional education Abidjan C&ocirc te d’Ivoire Pharmacognosy Laboratory UFR of Pharmaceutical and Biological Sciences Université Félix Houphou&euml t -Boigny Abidjan C&ocirc te d’Ivoire Department of Clinical Haematology University Hospital of Yopougon Abidjan C&ocirc te d’Ivoire Institut Pasteur de Cô te d’Ivoire Abidjan C&ocirc te d’Ivoire

Sickle cell disease (SCD) is a genetic blood disorder that affects the shape and transportation of red blood cells (RBCs) in blood vessels, leading to various clinical complications. Sickle cell disease is a widespread genetic disease in Black Africa. The objective of this study was to evaluate the sickling inhibition activity of Griffonia simplicifolia. Quantitative and qualitative tests were used to determine the major groups of secondary metabolites present in the Griffonia simplicifolia leaves extracts and the modified Emmel test was used to perform the study of sickling inhibition activity. The OECD 423 toxicity study showed that at a single dose of 2000 mg/kg bw, Griffonia simplicifolia leaves extracts are not toxic. All tested substances inhibit erythrocyte falciformation in a dose-dependent manner. The percentages of inhibition were 50.35%, 73% and 94.23% for aqueous extract, hydromethanolic extract and phenylalanine respectively at the concentration of 15 mg/mL. The methanolic extract (70%) had higher activity compared to the aqueous extract. These results suggest that the Griffonia simplicifolia extracts have some potential to be used as alternative antisickling therapy in SCD management.

关键词： Griffonia simplicifolia Antisickling Aqueous Extract Methanolic Extract SS Erythrocyte

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Scattering exceptional point in the visible

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Light(Science & Applications) 2023年第10期12卷 2228-2235页

作者： Tao He Zhanyi Zhang Jingyuan Zhu Yuzhi Shi Zhipeng Li Heng Wei Zeyong Wei Yong Li Zhanshan Wang Cheng-Wei Qiu Xinbin Cheng MOE Key Laboratory of Advanced Micro-Structured Materials Shanghai 200092China institute of Precision Optical Engineering School of Physics Science and EngineeringTongji UniversityShanghai 200092China Shanghai institute of Intelligent Science and Technology Tongji UniversityShanghai 200092China Shanghai Frontiers Science Center of Digital Optics Shanghai 200092China Shanghai professional technical Service Platform for Full-Spectrum and High-Performance Optical Thin Film Devices and Applications Shanghai 200092China Department of Electronic Science and Technology Tongji UniversityShanghai 201804China Department of Electrical and Computer Engineering National University of SingaporeSingapore 117583Singapore institute of Acoustics School of Physics Science and EngineeringTongji UniversityShanghai 200092China

Exceptional point (EP) is a special degeneracy of non-Hermitian systems. One-dimensional transmission systems operating at EPs are widely studied and applied to chiral conversion and sensing. Lately, two-dimensional systems at EPs have been exploited for their exotic scattering features, yet so far been limited to only the non-visible waveband. Here, we report a universal paradigm for achieving a high-efficiency EP in the visible by leveraging interlayer loss to accurately control the interplay between the lossy structure and scattering lightwaves. A bilayer framework is demonstrated to reflect back the incident light from the left side ( | r_(−1) | >0.999) and absorb the incident light from the right side ( | r_(+1) | < 10^(–4)). As a proof of concept, a bilayer metasurface is demonstrated to reflect and absorb the incident light with experimental efficiencies of 88% and 85%, respectively, at 532 nm. Our results open the way for a new class of nanoscale devices and power up new opportunities for EP physics.

关键词： visible exceptional incident

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A Study on the professional Development of Technological and pedagogical Competencies for e-Teaching Faculties

A Study on the Professional Development of Technological and...

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2012年互联网技术与应用国际学术会议

作者： Hueyching Janice Jih Chia-Chi Lin Graduate institute of eLearning Technology national HSinchu University of education Graduate institute of Management national Taiwan University of Science and Technology

＜正＞Ⅰ.研究背景与动机培育大学生拥有道德力、创新力、自学力、宏观力及就业力等五项智能为高等教育之重要使命,然而,科技的应用带来全新沟通机制与丰富资源的学习环境,却也导致教学、讯息特征、学习、脉络发展产生改变,Freeman指出... 详细信息

＜正＞Ⅰ.研究背景与动机培育大学生拥有道德力、创新力、自学力、宏观力及就业力等五项智能为高等教育之重要使命,然而,科技的应用带来全新沟通机制与丰富资源的学习环境,却也导致教学、讯息特征、学习、脉络发展产生改变,Freeman指出教师是教学成功的关键,其更重要于教学大纲、方法、内容。教学的成功与否,师资的良窳绝对是一个重要的因素,而当崭新的教学科技不断涌现,教师的信息素养能力必须持续发展与精进,才能胜任千变万化的工作挑战[1]。

关键词： training needs analysis faculty professional development e-learning

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Approach and potential of replacing oil and natural gas with coal in China

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Frontiers in Energy 2020年第2期14卷 419-431页

作者： Junjie LI Yajun TIAN Xiaohui YAN Jingdong YANG Yonggang WANG Wenqiang XU Kechang XIE School of Chemical and Environmental Engineering China University of Mining and TechnologyBeijing 100083China national institute of Clean-and-Low-Carbon Energy Beijing 102211China China Energy Investment Corporation Beijing 100011China Chinese Academy of Engineering Beijing 100088China Key Laboratory of Coal Science and Technology of the Ministry of education Taiyuan University of TechnologyTaiyuan 030024China

China’s fossil energy is characterized by an abundance of coal and a relative lack of oil and natural *** a strategy in which coal can replace oil and natural gas is,therefore,a necessary and practical approach to easing the excessive external dependence on oil and natural *** on the perspective of energy security,this paper proposes a technical framework for defining the substitution of oil and natural gas with coal in *** this framework,three substitution classifications and 11 industrialized technical routes are ***,three scenarios(namely,the cautious scenario,baseline scenario,and positive scenario)are developed to estimate the potential of this strategy for 2020 and *** results indicate that oil and natural gas replaced by coal will reach 67 to 81 Mt and 8.7 to 14.3 Gm^3 in 2020 and reach 93 to 138 Mt and 32.3 to 47.3 Gm^3 in 2030,*** implementing this strategy,China’s external dependence on oil,natural gas,and primary energy is expected to be curbed at approximately 70%,40%,and 20%by 2030,*** paper also demonstrates how coal,as a substitute for oil and natural gas,can contribute to carbon and pollution reduction and economic cost *** suggests a new direction for the development of the global coal industry and provides a crucial reference for energy transformation in China and other countries with similar energy situations.

关键词： coal replacing oil and natural gas energy security external dependence energy strategy China

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Gottfried Konecny:the influence in the global development of the three geosciences

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Geo-Spatial Information Science 2021年第1期24卷 22-26,I0005页

作者： Lena Halounová Department of Geomatics Faculty of Civil EngineeringCzech Technical University(CTU)PragueGzech Republic

The paper contains a brief overview of the professional activities of Professor Gottfried Konecny,Professor Emeritus at the institute of Photogrammetry and GeoInformation,Leibniz University Hannover,Germany,and his influence on photogrammetry,remote sensing and geospatial information science during his time at the University of New Brunswick,Canada,and at the Leibniz *** work can be divided into educational,scientific,application,organizational,and work in international *** activities comprised of giving courses in various languages,consultancy activities,and various other cooperations which took place in many South American countries,in Africa and Asia,for organizations such as the World Bank,United Nations,German Space Agency DLR,to name only a *** in connection with international societies mainly took place during ***’s engagement in the Council of the International Society for Photogrammetry(ISP),renamed the International Society for Photogrammetry and Remote Sensing(ISPRS),and the European Association of Remote Sensing Laboratories(EARSeL)*** was a key figure in bringing many countries and organizations to ISPRS as Ordinary and Sustaining *** Konecny has always been aware of the importance of international cooperation at various levels,also with sister societies such as the International Cartographic Association and the United Nations-Global Geospatial Information Management(UN-GGIM).His application activities span from the photogrammetry-oriented projects he was awarded in Canada,to remote sensing topics and geospatial sciences,combined with cartography during his Hannover *** vision and endless effort are exemplary for a person who has always been devoted to the three geosciences mentioned *** Konecny is the author of a number of books,journal papers and papers presented at international and national *** has been a recognized keynote speaker at many conferences t

关键词： Photogrammetry remote sensing spatial information sciences International Society for Photogrammetry and Remote Sensing research publication project cooperation

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The constructivist educational effectiveness of TM-aided specialized translation

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Sino-US English Teaching 2008年第9期5卷 17-29页

作者： Shih Chung-ling English Department and Graduate institute of lnterpretation and Translation National Kaohsiung First University of Science and Technology Kaohsiung 811 Taiwan

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Acellular nerve xenografts based on supercritical extraction technology for repairing long-distance sciatic nerve defects in rats

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Bioactive Materials 2022年第12期7卷 300-320页

作者： Shuai Wei Qian Hu Jianxiong Ma Xiu Dai Yu Sun Gonghai Han Haoye Meng Wenjing Xu Lei Zhang Xinlong Ma Jiang Peng Yu Wang Tianjin Hospital Tianjin UniversityNo.406 Jiefang South RoadHexi DistrictTianjin300211China institute of Orthopedics The First Medical CenterChinese PLA General HospitalBeijing Key Lab of Regenerative Medicine in OrthopedicsKey Laboratory of Musculoskeletal Trauma and War Injuries PLANo.28 Fuxing RoadHaidian DistrictBeijing 100853China Key Laboratory of Neuroregeneration of Jiangsu and Ministry of education Neural Regeneration Co-Innovation Center of Jiangsu ProvinceNantong UniversityNo.19 Qixiu RoadChongchuan DistrictNantong226001China Department of Geriatrics The Second People’s Hospital of NantongAffiliated Rehabilitation Hospital of Nantong UniversityNo.298 Xinhua RoadChongchuan DistrictNantong226006China institute of Orthopedics Tianjin Hospital Tianjin UniversityTianjin Key Laboratory of Orthopedic Biomechanics and Medical EngineeringNo.155 Munan RoadHeping DistrictTianjin300050China The First People’s Hospital of Yunnan Province No.157 Jinbi RoadXishan DistrictKunming650034China Academy of Medical Engineering and Translational Medicine Tianjin UniversityNo.92 Weijin RoadNankai DistrictTianjin300072China

Compared to conventional artificial nerve guide conduits (NGCs) prepared using natural polymers or synthetic polymers, acellular nerve grafts (ACNGs) derived from natural nerves with eliminated immune components have natural bionic advantages in composition and structure that polymer materials do not have. To further optimize the repair effect of ACNGs, in this study, we used a composite technology based on supercritical carbon dioxide (scCO_(2)) extraction to process the peripheral nerve of a large mammal, the Yorkshire pig, and obtained an innovative Acellular nerve xenografts (ANXs, namely, CD + scCO_(2) NG). After scCO_(2) extraction, the fat and DNA content in CD + scCO_(2) NG has been removed to the greatest extent, which can better supported cell adhesion and proliferation, inducing an extremely weak inflammatory response. Interestingly, the protein in the CD + scCO_(2) NG was primarily involved in signaling pathways related to axon guidance. Moreover, compared with the pure chemical decellularized nerve graft (CD NG), the DRG axons grew naturally on the CD + scCO_(2) NG membrane and extended long distances. In vivo studies further revealed that the regenerated nerve axons had basically crossed the CD + scCO_(2) NG 3 weeks after surgery. 12 weeks after surgery, CD + scCO_(2) NG was similar to autologous nerves in improving the quality of nerve regeneration, target muscle morphology and motor function recovery and was significantly better than hollow NGCs and CD NG. Therefore, we believe that the fully decellularized and fat-free porcine ACNGs may be the most promising “bridge” for repairing human nerve defects at this stage and for some time to come.

关键词： Peripheral nerve regeneration Acellular nerve xenograft Supercritical extraction Peripheral nerve injury Nerve defect

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Ionic liquids for high performance lithium metal batteries

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Journal of Energy Chemistry 2021年第8期30卷 320-333,I0007页

作者： Kexin Liu Zhuyi Wang Liyi Shi Siriporn Jungsuttiwong Shuai Yuan School of Materials Science and Engineering Shanghai University200444 ShanghaiChina Research Centre of Nanoscience and Nanotechnology Shanghai University200444 ShanghaiChina Center for Organic Electronic and Alternative Energy Department of Chemistry and Center of Excellence for Innovation in ChemistryFaculty of ScienceUbon Ratchathani University34190 Ubon RatchathaniThailand Emerging Industries institute Shanghai UniversityJiaxing 314006China

The pursuit of high energy density has promoted the development of high-performance lithium metal ***,it faces a serious security *** liquids have attracted great attention due to their high ionic conductivity,non-flammability,and the properties of promoting the formation of stable SEI *** understanding the problems existing in lithium metal batteries and the role of ionic liquids in them is of great significance for improving the performance of lithium metal *** article reviews the effects of the molecular structure of ionic liquids on ionic conductivity,Li^(+)ion transference number,electrochemical stability window,and lithium metal anode/electrolyte interface,as well as the application of ionic liquids in Li-high voltage cathode batteries,Li-O_(2) batteries and Li-S *** molecular design,composition and polymerization will be the main strategies for the future development of ionic liquid-based electrolytes for high performance lithium metal battery.

关键词： Ionic liquids Li+ion conduction Interface issues Lithium metal battery

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