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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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Socioeconomic performance of in-between open spaces in a post-socialist city of Tirana,Albania

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Frontiers of Architectural Research 2024年第4期13卷 858-875页

作者： Anna Yunitsyna ernest Shtepani Kevin Hasa Department of Architecture University Metropolitan TiranaTiranaAlbania Department of Architecture Epoka UniversityTiranaAlbania

The urban development of Tirana during the last few years is characterized by significant expansion,population growth and intensive residential *** post-socialist city became much denser,more diverse in terms of building types,taller,and relatively lacking in public *** study is focused on the evaluation of in-between open public spaces,which are specific for different urban *** spatial configuration of in-between spaces is analyzed in relation to the level of social interaction and the presence of economic *** neighborhoods,which belong to socialist and post-socialist tower,slab,and courtyard building typologies,are selected as case *** methodology includes Space Syntax analysis,site surveys,and observations aiming to comprehend the socioeconomic performance and spatial organization of the *** overlap of the activity pattern,human behavior mapping,syntactic measurements,and site survey allows understanding the performance of different types of open spaces and to find the in-between space that facilitates the development of social and economic activities.

关键词： In-between space Building typology Space syntax Social activity Socioeconomic performance

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Cardialysis 40年:领先欧洲的心血管研究机构

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中华心血管病杂志 2024年第1期52卷 107-110页

作者： Spitzer ernest Ren Claire Ben Cardialysis 鹿特丹3012KM 欧洲心血管研究所鹿特丹3012KM 荷兰鹿特丹伊拉斯谟大学医学中心胸部中心心内科鹿特丹3015GD

该文总结了Cardialysis的定位、过往成就及其未来发展的方向,其核心是在全球层面巩固和扩大临床试验研究者和临床研究专业人员之间的合作。Cardialysis的独特性在于其学术优势与独立性的结合以及高质量学术成果的产出。该文还总结了Card... 详细信息

该文总结了Cardialysis的定位、过往成就及其未来发展的方向,其核心是在全球层面巩固和扩大临床试验研究者和临床研究专业人员之间的合作。Cardialysis的独特性在于其学术优势与独立性的结合以及高质量学术成果的产出。该文还总结了Cardialysis心血管影像核心实验室和其过往完成的重要介入心脏病学临床试验;同时阐述了该组织提供的科技服务。此外,它还介绍了由Cardialysis(参与)创立的学术研究联盟(ARC)和欧洲心血管研究所(ECRI)两个非营利性学术组织。最后文章提到了Cardialysis成功的最重要贡献者,并分享了未来发展的方向。

关键词：心血管疾病核心实验室研究机构合作介入心脏病学心血管影像

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The g-factor measurement as an ultimate test for nuclear chirality

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Frontiers of physics 2024年第3期19卷 1-10页

作者： ernest Grodner Michał Kowalczyk Julian Srebrny Leszek Próchniak Chrystian Droste Jan Kownacki Maciej Kisieliński Krzysztof Starosta Takeshi Koike National Centre for Nuclear Research 05-540ŚwierkPoland Heavy Ion Laboratory University of WarsawPasteura 5a02-093 WarsawPoland Faculty of Physics University of WarsawPasteura 502-093 WarsawPoland Simon Fraser University 8888 University Drive BurnabyB.C.Canada V5A 1S6 Department of Physics Tohoku UniversitySendaiMiyagi 980-8577Japan

We present results of a series of experiments aimed at finding the most direct fingerprints of a phenomenon of nuclear chirality. These experiments brought a detailed knowledge of the so called partner bands in 132La, 128Cs and 126Cs including absolute values of E2 and M1 transition probabilities obtained through the DSA (Doppler Shift Attenuation) method. Considering the indirect character of observables such as energies and transition rates we proposed measurement of the g-factor of a chosen state as a direct, ultimate test of chirality. Our experiment on the bandhead of partner bands in 128Cs showed feasibility of this approach. Measured value of the g-factor which suggests non-chiral character of this state leads to another puzzle in the chirality studies — how the chirality emerges with increasing spin of levels along a partner band.

关键词： nuclear chirality electromagnetic transitions electromagnetic moments level lifetimes

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Metallaphotoredox-Catalyzed Three-Component Couplings for Practical Synthesis of Ureas and Carbamates

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Chinese Journal of Chemistry 2024年第3期42卷 264-270页

作者： ernest Koranteng Zhen-Cao Shu Yi-Yin Liu Qian Yang Bin Shi Qiang-Xian Wu Fen Tan Liang-Qiu Lu Wen-Jing Xiao Engineering Research Center of Photoenergy Utilization for Pollution Control and Carbon Reduction Ministry of EducationCollege of ChemistryCentral China Normal University152 Luoyu RoadWuhanHubei430079 China Wuhan Youji Industries Co. LtdNo.1 2nd Chemical Rd.WuhanHubei430082 China Hubei Key Laboratory of Purification and Application of Plant Anti-cancer Active Ingredients School of Chemistry and Life SciencesHubei University of EducationWuhanHubei430205 China State Key Laboratory for Oxo Synthesis and Selective Oxidation Lanzhou Institute of Chemical PhysicsChinese Academy of SciencesLanzhouGansu730000 China School of Chemistry and Chemical Engineering Henan Normal UniversityXinxiangHenan453007 China Wuhan Institute of Photochemistry and Technology WuhanHubei430082 China State Key Laboratory of Organometallic Chemistry Shanghai Institute of Organic ChemistryChinese Academy of SciencesShanghai200032 China

Ureas are widely used in drugs,materials and catalysts because of their diamide structure,which can form strong hydrogen ***,it is of great scientific significance to develop efficient and green methods for the synthesis of urea compounds,especially unsymmetrical ***,we have disclosed novel and highly efficient three-component coupling reactions of organic halides,sodium cyanate and amines enabled by nickel/photoredox dual catalysis for the preparation of unsymmetrical *** reaction features simple and safe operations,broad substrate scopes,and product *** allows the facile synthesis of N-aryl/vinyl ureas from readily available,user-friendly feedstocks under mild conditions(27 examples,36%—98%yields).In addition,this method is further derived to alcohols as nucleophiles to synthesize a series of carbamates(15 examples,40%—95%yields).The mechanism experiment shows that the isocyanate produced by the coupling of halide and sodium cyanate may be the key intermediate in this reaction.

关键词： Cross-coupling Nickel Photoredox catalysis Three-component reaction Ureas Carbamates

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Persicaria lanigera (Polygonaceae) leaf extract exhibits antiulcerogenic and antiproliferative activities against acetic acid-induced ulcerative colitis and cotton pellet-induced granuloma tissue in rats

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Asian Pacific Journal of Tropical Biomedicine 2024年第7期14卷 269-278页

作者： Meshack Antwi-Adjei ernest Obese Emmanuel Awintiig Adakudugu Benjamin Aboagye Daniel Anokwah Akua Afriyie Karikari Roberta Antwi-Adjei Elvis Ofori Ameyaw Department of Pharmacology School of Medical SciencesUniversity of Cape CoastCape CoastGhana Department of Pharmacotherapeutics and Pharmacy Practice School of Pharmacy and Pharmaceutical SciencesUniversity of Cape CoastCape CoastGhana Department of Forensic Sciences School of Biological SciencesUniversity of Cape CoastCape CoastGhana Department of Pharmacognosy and Herbal Medicine School of Pharmacy and Pharmaceutical SciencesUniversity of Cape CoastCape CoastGhana Department of Biomedical Sciences School of Allied Health SciencesCollege of Agriculture and Natural SciencesUniversity of Cape CoastCape CoastGhana

Objective:To assess the effect of leaf extract of Persicaria lanigera on cotton pellet-induced granuloma tissue formation and acetic acid-induced ulcerative ***:Rats were randomly divided into six groups:normal control,negative control,positive control(dexamethasone or sulfasalazine)as well as Persicaria lanigera(100-600 mg/kg)-treated *** effects of the extracts on body weight,antioxidant,and hematological parameters,as well as mast cell proliferation,were *** addition,a histological evaluation was ***:Persicaria lanigera extract significantly decreased the mean exudate amount and suppressed granuloma tissue formation in a concentration-dependent manner in rats(P<0.05).Additionally,the extract significantly increased body weight,improved hematological profile,reduced the disease activity index score and malondialdehyde level,as well as enhanced catalase and superoxide dismutase activities(P<0.05).Histological evaluation showed Persicaria lanigera extract alleviated acetic acid-induced colonic damages,as evidenced by decreased cell necrosis,edema,and inflammatory cell ***:Persicaria lanigera extract possesses antiproliferative,antioxidative,and anti-colitis ***,its underlying mechanisms of action need further investigation.

关键词： Colitis Persicaria lanigera Antioxidant Cotton pellets Mast cells Granuloma tissue formation

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Efficient C-N coupling in electrocatalytic urea generation on copper carbonate hydroxide electrocatalysts

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Journal of Energy Chemistry 2024年第6期93卷 289-298,I0008页

作者： Yinuo Wang Yian Wang Qinglan Zhao Hongming Xu Shangqian Zhu Fei Yang ernest P.Delmo Xiaoyi Qiu Chi Song Juhee Jang Tiehuai Li Ping Gao MDanny Gu Minhua Shao Advanced Materials Thrust The Hong Kong University of Science and Technology(Guangzhou)Guangzhou 511400GuangdongChina Department of Chemical and Biological Engineering The Hong Kong University of Science and TechnologyClear Water BayKowloonHong KongChina Department of Materials Science and Engineering Southern University of Science and Technology of Chin11088 Xueyuan BoulevardShenzhen 518055GuangdongChina Energy Institute and Chinese National Engineering Research Center for Control&Treatment of Heavy Metal PollutionThe Hong Kong University of Science and TechnologyKowloonHong KongChina Department of Chemistry City University of Hong KongTat Chee AvenueKowloonHong KongChina

Urea generation through electrochemical CO_(2) and NO_(3)~-co-reduction reaction(CO_(2)NO_(3)RR)is still limited by either the low selectivity or yield rate of ***,we report copper carbonate hydroxide(Cu_2(OH)_2CO_(3))as an efficient CO_(2)NO_(3)RR electrocatalyst with an impressive urea Faradaic efficiency of45.2%±2.1%and a high yield rate of 1564.5±145.2μg h~(-1)mg_(cat)~(-1).More importantly,H_(2) evolution is fully inhibited on this electrocatalyst over a wide potential range between-0.3 and-0.8 V versus reversible hydrogen *** thermodynamic simulation reveals that the first C-N coupling follows a unique pathway on Cu_2(OH)_2CO_(3) by combining the two intermediates,~*COOH and~**** work demonstrates that high selectivity and yield rate of urea can be simultaneously achieved on simple Cu-based electrocatalysts in CO_(2)NO_(3)RR,and provide guidance for rational design of more advanced catalysts.

关键词： Copper carbonate hydroxide Co-reduction Urea generation C-N coupling DFT calculation

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Predictive Study of Trace Metal Pollution of Gold Panning Sites in Birimian Formations: Case of the Yaouré Furrow (Côte d’Ivoire)

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Open Journal of Applied Sciences 2024年第7期14卷 1691-1714页

作者： Tonga Paul Tiemoko Gbele Ouattara Kouassi ernest Ahoussi Laboratoire des Sciences Gographiques du Gnie Civil et des Gosciences Institut National Polytechnique Flix Houphout-Boigny (INP-HB) Yamoussoukro Cte dIvoire Laboratoiredes Sciences du Sol delEauetdes Gomatriaux Universit Flix Houphout-Boigny (UFHB) Abidjan-Cocody Cte dIvoire

The present study was carried out on small-scale gold mining sites in the Yaouré region of Côte d’Ivoire. This region is geologically representative of the Birimian formations (2.1 Ga) of West Africa. The aim is to determine the potentially toxic trace metals (TMEs) generated by these sites, with a view to preventing possible contamination and/or metal pollution of the waters that provide fish products for local populations. To this end, a sampling campaign was carried out, resulting in the collection of 20 mining waste samples analyzed by X-ray fluorescence spectrometry (XRF) and 10 by X-ray diffractometer (XRD). The XRF analysis detected 06 predominant TMEs: arsenic, chromium, copper, nickel, zinc and vanadium. Statistical analysis was carried out to determine the distributions and correlations between these ETMs. To assess contamination and/or pollution levels, the following indices were calculated on the basis of reference concentrations of upper continental crust MTEs: Enrichment Factor, Geo-accumulation Index, Concentration Factor, Degree of contamination and those related to ecological risks. The results of statistical analyses and indices have shown that arsenic and chromium are the most predominant and can be, depending on the chemical form, potentially more toxic. The results of the DRX analysis show the occurrence of several minerals carrying these two MTEs, especially that of a rare mineral, Stenhuggarite, an arsenic oxide linked to hydrothermal veins. The majority of gold mining operations in West Africa are located in the birimian zone, hence the need for environmental monitoring by the relevant authorities, to prevent potential ecological risks to water and possibly health risks via the food chain.

关键词： Small-Scale Mining Metallic Trace Elements Mining Discharges Contamination Pollution Contamination Pollution Index

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Investigating environmental quality among G20 nations: The impacts of environmental goods and low-carbon technologies in mitigating environmental degradation

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Geoscience Frontiers 2024年第1期15卷 84-96页

作者： ernest Baba Ali Samira Shayanmehr Riza Radmehr Richard Bayitse Ebenezer Agbozo Department of Economics University for Development StudiesTamale P.O.Box TL1350Ghana Department of Agricultural Economics Ferdowsi University of MashhadIran Council for Scientific and Industrial Research Institute of Industrial ResearchAccra P.O.Box LG 576Ghana Department of Big Data Analytics and Methods of Video Analysis Ural Federal University19 Mira Str60002 EkaterinburgRussia

Environmental goods and low-carbon technologies have long been identified as having the potential to drive long-term economic progress without compromising environmental quality. However, their exact role in mitigating environmental degradation are yet to be unravelled. In addressing this shortfall, the extant literature relied on research funding and patent application as proxies for green technologies. Having established the weaknesses in the use of these variables as proxies for green technologies, this study explored the role of trade in environmental goods and low-carbon technologies in boosting environmental quality among G20 nation using a panel dataset from 1994 to 2018. The study employed the Method of Moment quantile regression for the model estimation and the Ridge regression, Discroll-Kraay standard error, and the Newey-West standard error estimators to test the robustness of our findings. Our findings indicate that whereas environmental goods promote environmental quality, low-carbon technologies decrease same. Also, the study found economic growth to exert an aggravating effect on environmental quality, while foreign direct investments, natural resource rents, human capital development, and renewable energy consumption exert positive influence on environmental quality. Based on the findings of the study, G20 nations are encouraged to improve green market structures to improve the trade in environmental goods and low-carbon technologies. Also the share of renewable energy sources in the overall energy basket must be improved to help improve environmental quality.

关键词： Environmental quality Environmental goods Low-carbon technology G20 nations

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Manufacturing Technique and Nutritive Value of Soumbara (Parkia biglobosa Seeds) and Dark Seed of Korhogo (Côte d’Ivoire)

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Open Journal of Applied Sciences 2022年第10期12卷 1673-1686页

作者： Ahon Gnamien Marcel Alla Kouadio Théodore Bakayoko Losséni amoikon kouakou ernest Institut Pédagogique National de l’Enseignement Technique et Professionnel (IPNETP) Abidjan C&#244 te d’Ivoire Laboratoire de Nutrition et Pharmacologie UFR Biosciences Université Félix Houphou&#235 t-Boigny Abidjan C&#244 te d’Ivoire

Soumbara is produced in an artisanal way. This product has a relatively strong odor that is not appreciated by some consumers in Côte d'Ivoire. From surveys of women and consumers, the manufacturing technique and the motivations for consumption of soumbara were revealed. For the chemical composition, the average water content is 13.33 ± 1.52 g/100 g MF, the average value of the ash content is 4 ± 0 g/100 g MS. The total protein and lipid levels are 16.37 ± 0.71 g/100 g DM and 21.55 ± 0.46 g/100 g DM respectively. Total carbohydrates, starch and total sugars are respectively 44.33 ± 1.46 g/100 g DM, 39.82 ± 32 g/100 g DM and 0.08 ± 0.01 mg glucose /mL. Concerning the phytochemical composition, the total polyphenols and total flavonoids have respectively contents of 2.74 ± 0.01 mg Eq AG mL of extract, and 0.82 ± 0.01 mg Eq Quer/mL of extract. The study notes that the iron and potassium contents are the most important with respectively 344.43 ± 1.20 μg/g and 174.5 ± 2.71 mg/g. The consumption survey revealed that soumbara produced in Côte d’Ivoire is relatively more consumed (55.77%) than that produced in other countries (44.23%). This artisanal product is appreciated for its taste (50.97%) and its therapeutic character (37.5%) in the form of grain (68.27%), powder (23.08%) or paste (8.65%). These data show that soumbara is very rich in nutrients, polyphenols and flavonoids. These results justify the numerous uses of this ingredient, both in food and in traditional medicine.

关键词： Korhogo Parkia Biglobosa Soumbara Néré Seeds Manufacturing Technique Nutritional Value

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