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Contemporary construction in historical sites:The missing factors

Frontiers of Architectural Research 2024年第3期13卷 487-504页

作者： Sina Kamali Tabrizi mohamed gamal Abdelmonem School of Architecture Design and the Built EnvironmentNottingham Trent UniversityNottinghamUK Department of Architecture and the Built Environment University of YorkYorkUK

Historical sites(HSs)are akin to living entities,and their existence is perpetuated through the erection of new buildings or *** HSs need sustainable development and new construction,as existing monuments fail to meet contemporary user *** the urgent demand,many new buildings within HSs have been constructed without considering the influencing factors on contextual value,built,and natural *** oversight has led to irreversible damage to their historical *** studies have independently explored interventions,construction,and development within ***,there is a conspicuous absence of comprehensive research that concurrently addresses these issues while preserving the intrinsic value of the *** study aims to identify the variables and factors contributing to the successful design and construction of new buildings within HSs,satisfying user needs,conserving contextual values,and achieving sustainability with the natural and built *** research employs a mixed-method approach,gathering raw data through literature reviews,case studies,and expert *** study population comprised 97 experts in architectural heritage conservation and sustainable *** factor analysis was utilized for data analysis,leading to the identification of influential *** study highlights the significance of the location,function,scale,form,material,skyline,viewpoint,accessibility,reversibility,topography,sustainability,technology,structural system,lifespan,and interior design in constructing new buildings within a ***,the design of new additions should adhere to five guiding principles:integrated design,volume design,green design,compatible design,and modern *** this context,the new structures will fulfill user needs,preserve or enhance contextual values,and harmonize with the built and natural environment.

关键词： New building Contemporary construction Historical sites Sustainable development Architectural heritage

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Jellyfish-inspired alginate composite hydrogel filter prepared by macro-micro double bionic strategy for efficient water purification

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Frontiers of Environmental Science & Engineering 2024年第4期18卷 141-157页

作者： Huiting Peng Yan Chen Jiaopan Lin Chelsea Benally mohamed gamal El-Din Junkai Gao School of Naval Architecture and Marinetime Zhejiang Ocean UniversityZhoushan 316022China Department of Civil and Environmental Engineering University of AlbertaEdmontonAB T6G 1H9Canada

Recently,research on hydrogel materials with a porous structure and superior water absorption capabilities significantly ***,the hydrogel under gravity-driven separation conditions often exhibit an unstable pore structure,poor mechanical properties,and limited *** this end,this work presents a novel approach that combines a macro-micro double bionic strategy with a triple crosslinking method to develop a multifunctional alginate composite hydrogel filter(2%-SA-κCG-PVA-Ca^(2+),2%-SKP-Ca^(2+)for short)with a stable pore structure and superior mechanical properties,which possessed an umbrella-shaped structure resembling that of *** 2%-SKPCa^(2+)filter was synthesized using polyvinyl alcohol(PVA)as a stable structure-directing agent,and sodium alginate(SA)andκ-carrageenan(κ-CG)as polymer *** distinctive umbrellashaped hydrogel of 2%-SKP-Ca^(2+)filter,formed through the triple crosslinking method,overcomes the limitations of unstable pore structure and poor durability seen in hydrogels prepared by traditional crosslinking ***,the utilization of the 2%-SKP-Ca^(2+)filter in water treatment demonstrates its good selective permeability,excellent resistance to fouling,and extended longevity,which enables it to simultaneously achieve the multifunctional water purification and the coating of multi-substrate anti-fouling ***,not only does this research provide an efficient,multifunctional,highly pollution-resistant preparation method for designing a new filter,but it also confirms the application prospect of the macro-micro dual bionic strategy developed in this study in complex water treatment.

关键词： Triple crosslinking method Alginate Umbrella-shaped Jellyfish Water purification

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Experimental and theoretical insight into carbamazepine degradation by chlorine-based advanced oxidation processes:Efficiency,energy consumption,mechanism and DBPs formation

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Journal of Environmental Sciences 2024年第5期139卷 72-83页

作者： Chunwei Liu Zuo Tong How Yue Ju Li Feng Xuefeng Ren mohamed gamal El-Din Key Laboratory ofCoal Processing and Efficient Utilization of Ministry of Education School of Chemical Engineering and TechnologyChina University of Mining and TechnologyJiangsu 221116China Department of Civil and Environmental Engineering University of AlbertaEdmonton T6G 1H9AlbertaCanada School of Environment and Spatial Informatics China University of Mining and TechnologyJiangsu 221116China Key Laboratory of Agro-Forestry Environmental Processes and Ecological Regulation ofHainan Province School of Ecology and EnvironmentHainan UniversityHainan 570228China

Chlorine has been widely used in different advanced oxidation processes(AOPs)for micropollutants *** this study,different chlorine-based AOPs,namely medium pressure(MP)UV/chlorine,low pressure(LP)UV/chlorine,and in-situ chlorination,were compared for carbamazepine(CBZ)removal efficiency,energy consumption,and disinfection by-products(DBPs)*** three processes could achieve nearly 100%CBZ removal,while the reaction time needed by in-situ chlorination was double the time required by UV/chlorine *** energy consumed per magnitude of CBZ removed(EE/O)of MP UV/chlorine was 13 times higher than that of LP UV/chlorine,and relative to that of in-situ chlorination ***,MP and LP UV/chlorine processes generated one to two orders of magnitude more hydroxyl radicals(^(·)OH)and reactive chlorine species(RCS)than in-situ ***,RCS were the dominant reactive species,contributing to 78.3%,75.6%,and 71.6% of CBZ removal in MP,LP UV/chlorine,and in-situ chlorination,*** to the Gibbs free energy barriers between CBZ and RCS/^(·)OH calculated based on density functional theory(DFT),RCS had more reaction routes with CBZ and showed lower energy barrier in the main CBZ degradation pathways like epoxidation and formation of *** applied to secondary wastewater effluent,UV/chlorine and in-situ chlorination produced overall DBPs ranging from 104.77 to 135.41μg/***,the production of chlorate during UV/chlorine processes was 15 times higher than that during in-situ chlorination.

关键词： UV/chlorine In-situ chlorination Energy efficiency Role of reactive species DFT calculation Disinfection by-products

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Asymptomatic bile duct stones:The devil is in the details

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World Journal of Gastrointestinal Endoscopy 2024年第5期16卷 227-231页

作者： Mohammed Omar Khalifa Elsayed mohamed gamal Talkhan Department of Gastroenterology South Tees Hospitals NHS Foundation TrustMiddlesbrough TS43BWUnited Kingdom

Common bile duct(CBD)stones are a common biliary tract *** asymp-tomatic CBD stones,stone removal by endoscopic retrograde cholangiopancreato-graphy(ERCP)is recommended in available *** asymptomatic CBD stones is a benign disease with no noticeable symptoms,the risk vs benefit strategy should be thoroughly considered before performing ERCP in these *** care review,technical aspects of the procedure,and patient preferences should also be considered.

关键词： Asymptomatic Common bile duct stones Endoscopic retrograde cholangiopancreatography Outcome Guidelines

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The role and potential of attapulgite in catalytic pyrolysis of refinery waste activated sludge

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Petroleum Science 2022年第1期19卷 354-362页

作者： Qinghong Wang Kanghong Hao Chelsea Benally Yue Kou Zhexuan An mohamed gamal El-Din Chunmao Chen State Key Laboratory of Heavy Oil Processing Beijing Key Laboratory of Oil and Gas Pollution ControlChina University of Petroleum-BeijingBeijing102249China Department of Civil and Environmental Engineering University of AlbertaEdmontonAlbertaT6G 1H9Canada

Pyrolysis is a promising technology for the treatment of refinery waste activated sludge(rWAS).In this study,attapulgite as a natural clay was used to enhance the pyrolysis of *** yields,characteristics of pyrolytic products,pyrolytic kinetics and mechanisms were *** attapulgite improved the conversion of rWAS into non-condensable gases and pyrolytic *** bio-oil quality improved and the biochar yield *** average activation energy of Stage Ⅰ(230-400℃)and Stage Ⅱ(400-500℃)decreased by 36.5%and 49.7%,respectively,compared to rWAS ***_(2)O_(3)and Fe_(2)O_(3)in attapulgite enhanced the dealkylation reaction and cracking of C-C *** content of the gasoline(

关键词： Catalytic pyrolysis Attapulgite Kinetics Product characteristics

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Impact of designed infection control educational program on nurses’knowledge and compliance with standard precautions at maternity hospitals

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Journal of Integrative Nursing 2023年第2期5卷 138-144页

作者： Fatma ZAGHLOUL-MAHMOUD mohamed gamal-MOSTAFA Walaa MAHMOUD-ABDEL-RAHMAN Maternal and Newborn Health Nursing Department Faculty of NursingCairo UniversityCairoEgypt Nursing Administration Department Faculty of NursingCairo UniversityCairoEgypt

Objectives:This study aimed to assess the nurses’knowledge and compliance with infection control standard precautions and evaluate the impact of the designed infection control educational program on nurses’knowledge and compliance with standard precautions at the maternity *** and Methods:A quasi‑experimental one‑group pretest‑posttest design was used on convenient sample of 60 nurses working at Obstetrics and Gynecological hospital in Cairo University Hospital,Kasr El Ainy,who received“designed infection control educational program”for 6 *** data were collected through the questionnaire comprising demographics,knowledge,and compliance with standard precautions *** nurses’knowledge and compliance score were compared before and after ***:The studied nurses had higher level of knowledge(85.3%)and compliance(92.8%)regarding infection control standard precautions after the educational program compared to before the *** results revealed statistically significant difference between before and after the program regarding nurses’knowledge score(15.5±2.9 vs.17.1±1.6,P<0.001)and compliance score(58.5±13.2 vs.74.3±5.1,P<0.001).In addition,there was insignificant relation between nurses’knowledge and compliance with standard precautions both before(r=0.952,P=0.474)and after educational program(r=0.164,P=0.223).Conclusion:The nurses’level of knowledge and compliance regarding infection control standard precautions was significantly improved after the ***,it is recommended that periodical educational programs regarding the standard precautions of infection control are essential for nurses at maternity hospital.

关键词： Compliance infection control knowledge maternity nursing standard precautions

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Using immune cell-based bioactivity assays to compare the inflammatory activities of oil sands process-affected waters from a pilot scale demonstration pit lake

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Journal of Environmental Sciences 2023年第6期128卷 55-70页

作者： Dustin M.E.Lillico Nora A.S.Hussain Yemaya Y.Choo-Yin Rui Qin Zuo Tong How mohamed gamal El-Din James L.Stafford Department of Biological Sciences University of AlbertaAlberta T6G 2E9Canada Department of Civil and Environmental Engineering University of AlbertaAlberta T6G 2E9Canada

In this study,we provide evidence that oil sands process-affected waters(OSPW)contain factors that activate the antimicrobial and proinflammatory responses of immune ***,using the murine macrophage RAW 264.7 cell line,we establish the bioactivity of two different OSPW samples and their isolated ***,we directly compared the bioactivity of two pilot scale demonstration pit lake(DPL)water samples,which included expressed water from treated tailings(termed the before water capping sample;BWC)as well as an after water capping(AWC)sample consisting of a mixture of expressed water,precipitation,upland runoff,coagulated OSPW and added *** inflammatory(*** activating)bioactivity was associated with the AWC sample and its organic fraction(OF),whereas the BWC sample had reduced bioactivity that was primarily associated with its inorganic fraction(IF).Overall,these results indicate that at non-toxic exposure doses,the RAW 264.7 cell line serves as an acute,sensitive and reliable biosensor for the screening of inflammatory constituents within and among discrete OSPW samples.

关键词： OSPW Oil sands Tailings ponds Remediation Macrophages Bioactivity Bioindicator Immunoecotoxicology

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Tagetones A and B, new cytotoxic monocyclic diterpenoids from flowers of Tagetes minuta

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Chinese Journal of Natural Medicines 2017年第7期15卷 546-549页

作者： Sabrin Ragab mohamed Ibrahim gamal Abd Allah mohamed Department of Pharmacognosy and Pharmaceutical Chemistry College of Pharmacy Taibah University Al-Madinah Al-Munawarah 30078 Saudi Arabia Department of Natural Products and Alternative Medicine Faculty of Pharmacy King Abdulaziz University Jeddah 21589 Saudi Arabia

Tagetones A(1) and B(2), two new monocyclic diterpenoids were isolated from the n-hexane fraction of fresh flowers of Tagetes minuta L.(Asteraceae). Their structures were established by multiple spectroscopic methods(IR, HR-ESI-MS, and 1D-, and 2D-NMR), in addition to comparison with literature data. Compound 1 showed cytotoxic activity towards MCF7 and A549 cancer cells with IC_(50) values being 4.68 and 4.24 μmol·L^(-1), respectively, compared to doxorubicin(IC_(50) 0.13 and 1.12 μmol·L^(-1), respectively). Compound 2 also exhibited significant activity against HCT116 cancer cells(IC_(50), 6.30 μmol·L^(-1)).

关键词： Tagetes minuta Asteraceae Monocyclic diterpenoids Tagetones Cytotoxic

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A NEW CONCEPT AND EXHIBITION PROGRAM FOR THE EGYPTIAN MUSEUM IN CAIRO

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Journal of Ancient Civilizations 2018年第1期33卷 41-82页

作者： mohamed gamal Rashed Damietta University

This article presents a new concept for the future permanent display of the Egyptian Museum in Cairo, and discusses different practical ideas and concepts. Throughout the discussion, recent challenges and opportunities are considered, particularly the conflicts and duplication among the three major museums in Greater Cairo, the Egyptian Museum(EMC), the Grand Egyptian Museum(GEM), and the National Museum of Egyptian Civilization(NMEC). Different ideas are introduced, while selected options are then discussed. The author argues his suggestion to develop a concept that combines archaeological fieldwork, masterpieces, and visible storage in a presentation that varies from aesthetic, contextual and systematic display. This comes from the author's understanding of the expected audiences, their interests, the strengths of the collection, the exhibition space, and EMC's mission.

关键词：国家博物馆埃及开罗展览

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New Polymer Syntheses Part 60: A Facile Synthetic Route to Polyamides Based on Thieno[2,3-b]thiophene and Their Corrosion Inhibition Behavior

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Chinese Journal of Polymer Science 2018年第7期36卷 835-847页

作者： Kamal I.Aly Amr H.Moustafa Essam K.Ahmed Hany M.Abd El-lateef mohamed gamal mohamed Sahar M.mohamed Polymer Research Lab Chemistry Department Faculty of Science Assiut University Chemistry Department Faculty of Science Sohag University Chemistry Department Faculty of Science Minia University Chemistry Department College of Science King Faisal university

Polyamides containing thieno[2,3-b]thiophene moiety were prepared via a simple polycondensation reaction of the diaminothieno[2,3-b]thiophene monomer la with different kinds of diacid chlorides （including oxalyl, adipoyl, sebacoyl, isophthaloyl, terephthaloyl, 4,4＇-azodibenzoyl, 3,3＇-azodibenzoyl, p-phenylene diacryloyl） in the presence of LiC1 and NMP as a solvent through lowtemperature solution polycondensation. The chemical structures of model compound and synthesized polyamides were confirmed by FTIR, nuclear magnetic resonance spectroscopy （including 1 H-NMR and 13 C-NMR） and elemental analysis. In addition, the thermal stability, crystallinity structure and surface morphology of synthesized polyamides were characterized via thermogravametric analysis （TGA）, wide-angle X-ray diffraction analysis （WAXD） and scanning electron microscopy （SEM）. Also, the corrosion inhibition behavior of selected examples ofpolyamides was investigated; the inhibitive effect of the investigated polymers for carbon steel in 1.0 mol＇L-1 HCI was studied using potentiodynamic polarization （PDP） and electrochemical impedance spectroscopy （EIS） methods. PDP results displayed that the polyamides containing thieno[2,3-b]thiophene moiety can be as mixed-type inhibitors. The inhibition efficiency （P, %） was found to be in the range from 67.13% to 96.01%. There is an increase in P by the synthesized polymers in comparison to the starting monomer. The adsorption of these polymers was found to obey Langmuir adsorption isotherm.

关键词： Thieno[2 3-b]thiophene Polymer synthesis Thermal properties Industrial applications Corrosion inhibition

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