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Studies in Fungi 2019年第1期4卷 216-222页

作者： al-bedak oa.ismail ma Mohamed RA Assiut University Mycological Centre(AUMC) Assiut UniversityAssiutEgypt Department of Botany and Microbiology Faculty of ScienceAssiut UniversityAssiutEgypt

During surveys of extremophilic fungi in hypersaline,alkaline lakes of Wadi-El-Natron,Egypt,an interesting fungus was recovered from a mud sample collected from Lake Hamra in Wadi-El-Natron,*** likelihood analysis of Internal Transcribed Spacer(ITS)gene along with morphological comparisons of related taxa revealed a novel taxon,Paracremonium moubasheri which is described and illustrated in the current *** moubasheri can be distinguished from the known species of the genus by its large conidia,in addition to the presence of chlamydospores.

关键词： Acremonium-like Hypersaline Hypocreales new taxon Phylogeny

Endophytic mycobiota of wild medicinal plants from New Valley Governorate,Egypt and quantitative assessment of their cell wall degrading enzymes

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Studies in Fungi 2021年第1期6卷 78-91页

作者： Abdel-Sater ma Abdel-Latif Ama Abdel-Wahab DA al-bedak oa Department of Botany and Microbiology Faculty of ScienceAssiut UniversityAssiut 71511Egypt Department of Botany Faculty of ScienceNew Valley UniversityEl-Kharga72511Egypt Assiut University Mycological Centre Assiut UniversityAssiut 71511Egypt

The present study isolated and identified 32 species of endophytic mycobiota belonging to 18 genera associated with 8 wild medicinal plants collected from El-Kharga oasis,New Valley Governorate,*** was the most common genus followed by alternaria and *** arvensis was the plant with the highest number of endophytes over the other plant species,while Moringa oleifera reported the lowest number of *** addition,the entomopathogenic fungus Beauveria bassiana;was recorded for the first time from leaves of Portulaca *** hundred and twenty-three isolates representing 32 species were screened for their abilities to produce pectinase,carboxy methyl cellulase(CMCase)and avicellase enzymes on sucrose free-Cz supplemented,individually with 1%pectin or 1%CMC or 1%avicel as a sole carbon source,***-four isolates produced pectinase while 66 isolates produced *** quantitative assays of the three enzymes for high-producers were performed in submerged fermentation using sucrose-free Cz *** was the superior in the production of the three enzymes with the potent strains were *** AUMC 14287 for CMCase(22.0 IU/ml/min)and avicellase(47.868 IU/ml/min)and *** AUMC 14278 for pectinase(225.43 IU/ml/min).

关键词： cellulose endophytic fungi medicinal plants pectinase submerged fermentation

Bacterial and fungal endophthalmitis in Upper Egypt:related species and risk factors

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Asian Pacific Journal of Tropical Biomedicine 2012年第8期2卷 655-659页

作者： AA Gharamah AM Moharram ma ismail AK al-Hussaini School of Biological Sciences Universiti Sains Malaysia Department of Botany Faculty of SciencesAssiut University Department of Ophthalmology Faculty of MedicineAssiut University

Objective:To study risk factors,contributing factors of bacterial and fungal endophthalmitis in Upper Egypt,test the isolated species sensitive to some therapeutic agents,and to investigate the air-borne bacteria and fungi in opthalmology operating ***:Thirty one cases of endophthalmitis were clinically diagnosed and microbiologically *** air-borne bacteria and fungi inside four air-conditioned operating rooms in the Ophthalmology Department at Assiut University Hospitals were also *** isolated microbes from endophthalmitis cases were tested for their ability to produce some extracellular enzymes including protease,lipase,urease,phosphatase and *** the ability of 5 fungal isolates from endophthalmitis origin to produce mycotoxins and their sensitivity to some therapeutic agents were ***:Results showed that bacteria and fungi were responsible for infection in 10 and 6 cases of endophthalmitis,respectively and only 2 cases produced a mixture of bacteria and *** was the most prevalent risk factor of endophthalmitis where 58.1%of the 31 cases were due to *** ophthalmology operating rooms,different bacterial and fungal species were isolated.8 bacterial and 5 fungal isolates showed their ability to produce enzymes while only 3 fungal isolates were able to produce *** showed the highest effect against most isolates in ***:The ability of bacterial and fungal isolates to produce extracellular enzymes and mycotoxins may be aid in the invasion and destruction of eye tissues. Microbial contamination of operating rooms with air-borne bacteria and fungi in the present work may be a source of postoperative endophthalmitis.

关键词： Bacterial Fungal Endophthalmitis Upper Egypt Risk factors Trauma Ophthalmic surgery

Sharp continuity bounds for entropy and conditional entropy

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Science China(Physics,Mechanics & Astronomy) 2017年第2期60卷 64-68页

作者： ZhiHua Chen ZhiHao ma ismail Nikoufar Shao-Ming Fei Department of Applied mathematics Zhejiang University of Technology Hangzhou 310014 China School of mathematical Sciences Shanghai Jiaotong University Shanghai 200240 China Department of mathematics Payame Noor University Tehran 19395-3697 Iran School of mathematical Sciences Capital Normal University Beijing 100048 China max-Planck-Institute for mathematics in the Sciences Leipzig 04103 Germany

The von Neumann entropy captures many operational quan- tities in the quantum information theory such as quantum ca- pacity of the communication channel. Von Neumann entropy is continuous and is represented by Fannes inequality, which was originally given in ref. [1]. Quantum correlations such as entanglement and quantum discord etc., are important resources in quantum information processing. In the last year enormous progress on the generation, concentration,

关键词：条件熵量子信息理论量子信息处理通信信道量子纠缠量子关联多操作不等式

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A single-step synthesis of nitrogen-doped graphene sheets decorated with cobalt hydroxide nanoflakes for the determination of dopamine

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Progress in Natural Science:materials International 2017年第5期27卷 582-587页

作者： Muhammad Mehmood Shahid Ahmad H.ismail ali ma.Abdul Amir al-Mokaram R.Vikneswaran Sohail Ahmad Amir Hamza Arshid Numan Department of Physics Faculty of ScienceUniversity of Malaya Department of Chemistry College of ScienceMustansiriyah University Department of Chemistry Faculty of ScienceUniversity of Malaya Nanotechnology & Catalysis Research Centre University of Malaya 5. Faculty of ScienceUniversity of Haripur

Nitrogen-doped reduced graphene oxide（NrGO）sheets decorated with Co（OH）;nanoflakes were prepared by a single-step hydrothermal *** morphological and structural characterizations of as synthesized Nr GO@Co（OH）;nanoflakes were performed by field emission scanning electron microscopy（FESEM）,EDX-mapping and X-ray diffraction（XRD）.Nr GO@Co（OH）;nanoflakes modified glassy carbon electrode（GCE）was used for electrochemical sensing of dopamine in neutral *** nanocomposite modified electrode showed enhanced electrochemical sensing ability for the detection of dopamine and the limit of detection（Lo D）was found to be 0.201μM with a sensitivity value of 0.0286±0.002 m A m M;.Interference studies revealed that Nr GO@Co（OH）;─GCE endow excellent selectivity for DA detection even in the presence of higher concentration of common co-existing physiological interfering ***,proposed sensor demonstrated excellent performance in urine samples with promising reproducibility and stability.

关键词： Nitrogen doped graphene Dopamine Electrochemical sensor Amperometric detection

Screening the RFX6-DNA binding domain for potential genetic variants in patients with type 2 diabetes

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World Journal of Diabetes 2019年第3期10卷 181-187页

作者： ismail S mahmoud Ayat Homsi Hamzeh J al-Ameer Jihad alzyoud mais Darras Mohammad al Shhab Malek Zihlif ma’mon M Hatmal Walhan alshaer Department of Medical Laboratory Sciences Faculty of Allied Health Sciences The Hashemite University Zarqa 13133 Jordan Cell Therapy Centre The University of Jordan Amman 11942 Jordan Department of Pharmacology Faculty of Medicine The University of Jordan Amman 11942 Jordan

BACKGROUND The regulatory factor X6 (RFX6), a member of regulatory factor X family, is known to play a key role in the development and differentiation of pancreatic beta cells as well as insulin production and secretion. However, the potential role of RFX6 in type 2 diabetes (T2D) is still unclear. AIM Recent studies have indicated that RFX6 binding to DNA could be disrupted in diabetes. Therefore, in this study we investigated whether genetic mutations are present in the DNA binding domain of RFX6 gene that could abrogate its function in T2D. METHODS A cohort of T2D patients was enrolled in this study, and the gene encoding the DNA binding domain of RFX6 was amplified by polymerase chain reaction and then analysed by direct DNA sequencing. RESULTS The DNA sequence analysis revealed the absence of any exonic mutation. However, we have identified a new heterozygous single nucleotide polymorphism (IVS6+31 C>T) in the intronic region of DNA binding domain gene that is present in 9.2% and 8.5% of diabetic and control people, respectively (P = 0.97).CONCLUSION We report the absence of any significant genetic variant that could affect the function of RFX6-DNA binding domain in T2D.

关键词： Regulatory factor X6 Genetic variant Diabetes DNA binding domain

Corrosion inhibition of carbon steel in hydrochloric acid by cationic arylthiophenes as new eco-friendly inhibitors: Experimental and quantum chemical study

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Chinese Journal of Chemical Engineering 2021年第12期34卷 197-217页

作者： Abd El-Aziz S.Fouda Mohamed A.ismail Abdulraqeb A.al-Khamri Ashraf S.Abousalem Department of Chemistry Faculty of ScienceEl-Mansoura UniversityEl-Mansoura 35516Egypt Department of Chemistry Faculty of EducationArts and SciencesUniversity of Saba RegionMaribYemen Quality Control Laboratory Operations DepartmentJotunEgypt

This study describes the adsorption behavior of three arylthiophene derivatives namely:2-(4-amidino-3-fluorophenyl)-5-[4-methoxy phenyl] thiophene dihydrochloride salt(ma-1217),2-(4-amidinophenyl)-5-[4-chlorophenyll thiophene dihydrochloride salt(ma-1316) and 2-(4-amidino-3-fluorophenyl)-5-[4-ch lorophenyllthiophene dihydrochloride salt(ma-1312) at C-steel in 1.0 mol·L^(-1) HCl interface using experimental and theoretical *** and mass loss measurements showed that the inhibition efficiency(IE) of the arylthiophene derivatives increases with increasing concentrations and exhibited maximum efficiency 89% at 21×10^(-6) mol·L^(-1)(ma-1217) by mass loss *** investigated arylthiophene derivatives obey the Langmuir adsorption *** polarization studies the arylthiophene derivatives act as mixed-type *** analysis were carried out and *** mode of orientation and adsorption of inhibitor molecules on C-steel surface was studied using molecular dynamics(MD) *** chemical parameters as well as the radial distribution function indices and binding energies confirm the experimental results.

关键词： Carbon steel Corrosion inhibition Adsorption Arylthiophene derivatives Polarization Electrochemical frequency modulation

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Financial System Design and Firm Investment in Malaysian Listed Firms

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Journal of Modern Accounting and Auditing 2011年第1期7卷 14-30页

作者： masturah ma＇in Abdul Ghafar ismail Universiti Teknologi maRA Malaysia Universiti Kebangsaan Malaysia Malaysia

This paper investigates the impact of financial system design on investment. It is aimed to provide additional empirical evidence based on the original paper by Demirguc-Kunt and maksimovic （2002）. The firm-level data of Malaysian companies between 2000 and 2007 are used. This paper also extends the previous literatures by using a panel data methodology, applying a random-effects estimator. The findings show that： First, the growth investment of firms are positively related to the development of the banking system but negatively related to the capital market. These firms substitute equity for debt associated with an increase in stock market activity （more long-term financing） and debt for equity in the presence of an increase in banking activity （less long-term financing）. Second, the internal growth financing, short-term growth financing and long-term growth financing have shown a significant impact on growth investment by firms. It implies that these financing constraints are complements to the development of banking system and stock market activity. Therefore, well-developed stock markets facilitate long-term financing, whereas a well-developed banking sector facilitates short-term financing. It is recommended that policy makers stress more on banking system for short-term financing and capital market for long-term financing.

关键词： financial system design external financing firm investment

Multi-site Passivation of ZnO Metal Oxides via Biomolecules for Efficient and Highly Stable Organic Solar Cells

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Chinese Journal of Chemistry 2024年第14期42卷 1582-1592页

作者： Irfan ismail maria Khalil Xiaomei Gao Xingze Chen Muhammad Jawad Rong Huang Zhiyun Li Emmanuel Acheampong Tsiwah Wei-shi Li Qun Luo Chang-Qi ma i-Lab&Printable Electronics Research Center Suzhou Institute of Nano-Tech and Nano-Bionics(SINANO)Chinese Academy of Sciences(CAS)SuzhouJiangsu215123 China University of Chinese Academy of Sciences(UCAS) Beijing100040 China School of Nano-Tech and Nano-Bionics University of Science and Technology of China(USTC)HefeiAnhui230027 China Shanghai Institute of Organic Chemistry(SIOC) Chinese Academy of Sciences(CAS)Shanghai200032 China Vacuum Interconnected Nanotech Workstation(Nano-X) SuzhouJiangsu215123 China

ZnO nanoparticles(nps)among metal oxide(MOs)are proven to be essential electron transporting layers(ETLs)applied in organic solar cells(OSCs).However,intrinsic defects,interfacial charge recombination,and catalytic behavior towards the active layer restrict the applications of ZnO nps for efficient and long-term stable *** commonly available biomolecule cytidine 5'-monophosphate(CMP-OH)with phosphonic acid,its salt cytidine 5'-monophosphate disodium salt(CMP-ONa)with a phosphate group as an anchoring group and conjugated terminal functional in both analogous molecules provide carrier transfer bridge at bottom interface of the active *** theoretical investigations and characterizations have discovered the multi-site coordination of CMP-OH towards acceptor molecules and ZnO *** dual-side alignment of CMP analogous molecules hinders interfacial charge recombination and enhances charge transfer potential at ***,PM6:L8-BO-based OSCs with modified ETL obtain 18.13%efficiency,12%higher than that of unmodified *** higher efficiency,CMP-OH-based OSC devices illustrate remarkably improved thermal stability for 500 h at 85℃with 72%of initial PCE and operation stability for 2000 h with 90.1%of initial *** work reveals the passivation mechanism of multi-anchoring groups towards MOs and single-functional groups towards the active layer to optimize the interface for efficient and highly stable OSCs.

关键词： Organic solar cells Nanoparticles Nucleotides Interfacial interactions Surface chemistry Multi-site passivation

Ultrafast laser dynamics of metal organic frameworks/TiO_2 nano-arrays hybrid composites for energy conversion applications

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Journal of Energy Chemistry 2019年第2期28卷 88-94页

作者： Fatma M.ismail Daniel O'Neil Tareq Youssef Souad A.Elfeky The National Institute of Laser Enhanced Sciences Cairo University Zewail City of Science and Technology Georgia Institute of Technology

Herein,we report the victorious synthesis of metal-organic frameworks(MOFs) on TiO_2 nanotubes(NTs)using a layer-by-layer(LbL) *** crystalline and homogenous thin films of MOFs were grown and characterized using XRD,SEM,FT-IR and UV/Vis ***,the utilization of the MOF films as sensitizers was probed in bespoke Graetzel type liquid junction solar *** constructed cell performance revealed an I_(sc) of 1.16 ma cm^(–2),Vocof 0.63 V,FF of 0.33,and E_(ff) of 0.42%.Further,pumpprobe transient laser spectroscopy was performed to investigate the energy and charge transfer dynamics of the MOFs/TiO_2 NTs *** results indicated 86% injection *** ultrafast pump-probe spectroscopy allows the investigation of this process and the differences between *** also showed that the relaxation of the MOF chromophores is in competition with electron injection in the Ti O2 *** this study provides a new insight into electron transfer from photoexcited metal-organic frameworks(MOFs) into titanium dioxide.

关键词： Ultrafast laser dynamics Metal-organic frameworks TiO2 nano-arrays Energy conversion Thin film

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