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Impact of a Clinical Pharmacist in the General Hospital: An Egyptian Trial

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Pharmacology & Pharmacy 2014年第6期5卷 577-587页

作者： Nirmeen A. sabry maggie m. Abbassi Clinical Pharmacy Department Faculty of Pharmacy Cairo University Cairo Egypt

medication review aims at optimizing the impact of medications while minimizing their related problems. Drug-related problems have never been properly addressed in Egyptian hospitals. The purpose of this paper is to record and compare the prevalence and types of medication related problems, the interventions provided by the clinical pharmacists and how physicians responded along with making recommendations for error prevention. This prospective study was conducted between June 2012 and December 2012, at an Egyptian general hospital. Five trained pharmacists recorded patient-specific medication related recommendations and completed quality-of-care interventions. The average number of audited doses was 81% of those prescribed. The most prevalent medication problem was prescribing errors followed by administration errors. A total of 20 patients experienced adverse drug events. The greatest error rates across the seven months were observed in the ICU and cardiology units. Numbers of interventions offered by the pharmacists ranged from 241, to 519 per month. Nurses accepted all the interventions introduced by the pharmacists aimed at reducing administration errors while physicians’ resistance rates had an average of 21%. This study showed a positive influence of the pharmacist-led medication review in reducing potential drug-related problems in an Egyptian secondary care where the hospital under study implemented new measures to minimize drug related problems according to the findings of the trained pharmacists.

关键词： Egypt medication Review Intervention Drug Related Problems

On the Dynamics of a Viscoelastic Fluid-Conveying Nanotube

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Fluid Dynamics & materials Processing 2022年第4期18卷 1137-1151页

作者： Ola Adil Ibrahim Gunawan Widjaja Abdulhussien N.Alattabi Krishanveer Singh yasser Fakri mustafa P.A.Krovopuskov mustafa m.Kadhim General Directorate of Curricula-ministry of Education-Iraq Baghdad10020Iraq Senior Lecturer Faculty of Public Health Universitas Indonesia/Faculty of Law Universitas Krisnadwipayana Jakarta11440Indonesia College of Petroleum Engineering Al-Ayen UniversityThi-Qar64005Iraq GLA University mathura-India MathuraChaumuhanUttar Pradesh281406India Department of Pharmaceutical Chemistry College of PharmacyUniversity of MosulMosul41002Iraq Lipetsk State Technical University Lipetsk398600Russia Department of Dentistry Kut University CollegeKutWasit52001Iraq

The objective of the presented study is to perform a vibration analysis and investigate the stability of a viscoelastic-fluid conveying pipe with an intermediate *** mathematical model is elaborated in the framework of the Euler-Bernoulli beam theory in combination with the Kelvin-Voight viscoelastic *** resulting differential equation of motion and the related boundary conditions and compatibility conditions in the mid-span support are solved analytically using a power series *** results show that an intermediate support located atξ_(s)=0.1 andξ_(s)=0.5 increases the critical velocity up to 35%and 50.15%,***,the non-dimensional critical velocity for an intermediate support atξ_(s)=0.1 is 4.83.

关键词： Fluid conveying carbon nanotube viscoelastic structural damping natural frequencies analytical method

Evaluation of Large-Scale Housing Projects in Terms of Their Compatibility to Criteria of Environmental Design

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Journal of Civil Engineering and Architecture 2016年第2期10卷 157-165页

作者： yasser Aref Tasneem m. Khalil Department of Architecture Faculty of Engineering Menoufia University Menoufia 32511 Egypt Water and Sewage Company Menoufia 32511 Egypt

The design and execution of large-scale housing projects always have negative environmental impacts in terms of excessive consumption of non-renewable energy resources and environmental pollution. These negative impacts are multiplied in the case of large-scale housing projects where a large number of standardized units are implemented in a repeated manner. This proposed paper will study and evaluate the environmental impacts of large-scale housing projects according to criteria of environmental design. The case study project is Haram City that is a housing project for small low-income families. The project consists of 50,000 housing units and is located in 6th of October City, which has a hot dry desert climate that necessitates special design considerations and applications of environmental design concepts. The project will be analyzed and evaluated in terms of site layout, design of buildings, orientation, materials used, construction techniques, thermal behavior, landscaping, etc.

关键词： Green architecture environmentally-friendly buildings low-cost housing projects environmental design concepts.

Does the presence of a percutaneous renal access influence fluoroscopy time during percutaneous nephrolithotomy?

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Asian Journal of Urology 2015年第4期2卷 220-223页

作者： yasser A.Noureldin mohamed A.Elkoushy Sero Andonian Division of Urology McGill University Health CentreMontrealQuebecCanada Department of Urology Benha University HospitalBenha UniversityBenhaEgypt Department of Urology Suez Canal UniversityIsmailiaEgypt

Objective:The aim of this study was to assess whether the presence of a preformed percutaneous renal access(PCA)had any effects on fluoroscopy time(FT)during percutaneous nephrolithotomy(PCNL).methods:After ethics approval was obtained,medical records of all patients who underwent PCNL between 2009 and 2013 at a tertiary stone referral centre were retrospectively *** with and without pre-formed PCA undergoing PCNL were *** who underwent second-look PCNL and those who had their access inserted by interventional radiology constituted the group with pre-formed ***:A total of 185 PCNLs were *** mean patient age was 55.2±1.0 years with mean body mass index(BmI)of 27.8±0.5 kg/m^2 and male gender of 63.8%.The mean stone size was 618.4±47.0 mm^2 with mean Guy’s grade of 2.3±0.7 and mean *** of 7.6±*** mean operative time was 98.7±2.6 min with mean FT of 113.4±4.5 *** overall stone-free rate was 71.9%with complication rate of 16.2%.When compared with PCNLs without pre-formed PCA,PCNLs with pre-formed PCA were associated with significantly shorter FT(120.6±5.1 vs.77.5±6.7 s;pmated blood loss(EBL)(p=0.01).On multivariate analysis,PCNLs with pre-formed PCA were associated with significantly shorter FT(***=-43.2(95%CI:-66.4 to-20);pmed PCA were associated with significantly lower FT and EBL when compared with PCNLs without pre-formed PCA.

关键词： Fluoroscopy Percutaneous nephrolithotomy Renal access

Feasibility Study of Solar Energy Steam Generator for Rural Electrification

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Energy and Power Engineering 2015年第1期7卷 1-11页

作者： mouaaz Nahas m. sabry Saud Al-Lehyani Department of Electrical Engineering College of Engineering and Islamic Architecture Umm Al-Qura University Makkah KSA Department of Physics College of Applied Sciences Umm Al-Qura University Makkah KSA Solar Research Department National Research Institute of Astronomy and Geophysics Cairo Egypt

In middle East region, where there are plentiful amounts of solar radiation and great desert areas, solar energy can play a potential role in replacing conventional fuel-operated electricity generation methods with a cost-effective, sustainable solution. This paper presents a feasibility study of a low-cost solar energy steam generator for rural areas electrification. The proposed system is based on the use of trough concentrator which converts solar radiation into thermal energy in its focal line (where a receiver pipe is installed with a fluid flowing in its interior). The aim of the paper is to predict the feasibility and potential for steam generation using a stand-alone solar concentrator with a small dimension for domestic and small-scale electricity generation. The study presented here is based on modelling of the system to determine the points at which the system is expected to produce sufficient steam energy at the tube outlet to drive a steam engine for producing electricity. Results are presented in graphical forms to show the operating points and the effect of changing selected input parameters on the behavior of the system in order to set some limits (boundaries) for such parameters. Results show that among the three input design parameters selected, the tube diameter is the most dominant parameter that influences steam energy, then the tube length and finally the flow rate of the water passing through the tube. The results of this paper can provide a useful guideline for future simulation and/or physical implementation of the system.

关键词： Solar Radiation Trough Concentrator Radiation Intensity Tube Diameter Tube Length Flow Rate Steam Energy

Removal of toxic elements from aqueous environments using nano zero-valent iron-and iron oxide-modified biochar:a review

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Biochar 2022年第1期4卷 779-799页

作者： sabry m.Shaheen Ahmed mosa Natasha Hamada Abdelrahman Nabeel Khan Niazi Vasileios Antoniadis muhammad Shahid Hocheol Song Eilhann E.Kwon Jörg Rinklebe Laboratory of Soil-and Groundwater-management Institute of Foundation EngineeringWater-and Waste-ManagementSchool of Architecture and Civil EngineeringUniversity of WuppertalPauluskirchstraße 742285 WuppertalGermany Department of Arid Land Agriculture Faculty of MeteorologyEnvironmentand Arid Land AgricultureKing Abdulaziz UniversityJeddah 21589Saudi Arabia Department of Soil and Water Sciences Faculty of AgricultureUniversity of KafrelsheikhKafr El-Sheikh 33516Egypt Soils Department Faculty of AgricultureMansoura UniversityMansoura 35516Egypt Department of Environmental Sciences COMSATS University IslamabadVehari CampusVehari 61100Pakistan Soil Science Dept. Faculty of AgricultureCairo UniversityGiza 12613Egypt Institute of Soil and Environmental Sciences University of Agriculture FaisalabadFaisalabad 38040Pakistan Department of Agriculture Crop Production and Rural Environment University of ThessalyFytokou Street38446VolosGreece Department of Environment Energy and GeoinformaticsUniversity of SejongGuangjin-GuSeoul 05006Republic of Korea Department of Earth Resources and Environmental Engineering Hanyang UniversitySeoul 04763Republic of Korea

Biochar(BC)has gained attention for removal of toxic elements(TEs)from aqueous media;however,pristine biochar often exhibits low adsorption ***,various modification strategies in BC have been developed to improve its removal capability against *** zero-valent iron(nZVI)and iron oxides(FeOx)have been used as sorbents for TE ***,these materials are prone to agglomeration and also expensive,which make their usage limited for large-scale *** nZVI technical demerits could be resolved by the development of BC-based composite sorbents through the loading of nZVI or FeOx onto BC *** zero-valent iron modified BC(nZVIBC),FeOx-modified BC(FeOxBC)have attracted attention for their capability in removing pollutants from the aqueous ***,a potential use of nZVIBC and FeOxBC for TE removal from aqueous environments has not been well-realized or *** such,this article reviews:(i)the preparation and characterization of nZVIBC and FeOxBC;(ii)the capacity of nZVIBC and FeOxBC for TE retention in line with their physicochemical properties,and(iii)TE removal mechanisms by nZVIBC and *** nZVI and FeOx in BC increases its sporptive capability of TEs due to surface modifications in morphology,functional groups,and elemental *** combined effects of BC and nZVI,FeOx or Fe salts on the sorption of TEs are complex because they are very specific to *** review identified significant opportunities for research and technol-ogy advancement of nZVIBC and FeOxBC as novel and effective sorbents for the remediation of TEs contaminated water.

关键词： Feedstock Engineered biochar Toxic metal(loid)s Biosorption Wastewater remediation

Does vitamin C have the ability to augment the therapeutic effect of bone marrow-derived mesenchymal stem cells on spinal cord injury？

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Neural Regeneration Research 2017年第12期12卷 2050-2058页

作者： Nesrine Salem mohamed Y.Salem mohammed m.Elmaghrabi moataz A.Elawady mona A.Elawady Dina sabry Ashraf Shamaa Abdel-Haleem H.Elkasapy Noha Ibrhim Azza Elamir Department of Histology and Cell Biology Faculty of Medicine Banha University Banha Egypt Department of Neurosurgery Faculty of Medicine Banha University Banha Egypt Department of Community medicine Faculty of Medicine Banha University Banha Egypt Department of medical Biochemistry Faculty of Medicine Cairo University Giza Egypt Department of Surgery and Radiology Faculty of Veterinary Medicine Cairo University Giza Egypt Department of Surgery Faculty of Veterinary Medicine Banha University Banha Egypt Department of medical Physiology Faculty of Medicine Banha University Banha Egypt Department of medical Biochemistry Faculty of Medicine El Fayoum University Egyptian Egypt

methylprednisolone（mP） is currently the only drug confirmed to exhibit a neuroprotective effect on acute spinal cord injury（SCI）. Vitamin C（VC） is a natural water-soluble antioxidant that exerts neuroprotective effects through eliminating free radical damage to nerve cells. Bone marrow mesenchymal stem cells（BmmSCs）, as multipotent stem cells, are promising candidates in SCI repair. To evaluate the therapeutic effects of mP, VC and BmmSCs on traumatic SCI, 80 adult male rats were randomly divided into seven groups： control, SCI（SCI induction by weight-drop method）, mP（SCI induction, followed by administration of 30 mg/kg mP via the tail vein, once every other 6 hours, for five times）, VC（SCI induction, followed by intraperitoneal administration of 100 mg/kg VC once a day, for 28 days）, mP ＋ VC（SCI induction, followed by administration of mP and VC as the former）, BmmSCs（SCI induction, followed by injection of 3 × 10~6 BmmSCs at the injury site）, and BmmSCs ＋ VC（SCI induction, followed by BmmSCs injection and VC administration as the former）. Locomotor recovery was assessed using the Basso mouse Scale. Injured spinal cord tissue was evaluated using hematoxylin-eosin staining and immunohistochemical staining. Expression of transforming growth factor-beta, tumor necrosis factor-alpha, and matrix metalloproteinase-2 genes was determined using real-time quantitative PCR. BmmSCs intervention better promoted recovery of nerve function of rats with SCI, mitigated nerve cell damage, and decreased expression of transforming growth factor-beta, tumor necrosis factor-alpha, and matrix metalloproteinase-2 genes than mP and/or VC. more importantly, BmmSCs in combination with VC induced more obvious improvements. These results suggest that VC can enhance the neuroprotective effects of BmmSCs against SCI.

关键词： nerve regeneration spinal cord injury vitamin C methylprednisolone bone marrow mesenchymalstern cells locotmotor neural regeneration

THERmOmECHANICAL mODELING OF POLYmER NANOCOmPOSITES BY THE ASYmPTOTIC HOmOGENIZATION mETHOD

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THERMOMECHANICAL MODELING OF POLYMER NANOCOMPOSITES BY THE A...

Fabrication of 3D air-core mEmS inductors for very-highfrequency power conversions

第二届亚洲功能材料与结构力学大会

作者： yasser m.Shabana mechanical Design Department Faculty of Engineering-Mataria

＜正＞There is much current interest to incorporate nano-scale fillers into polymer matrices to achieve potentially unique *** to traditional microcomposites,nanocomposites have significant large ratio of interface area to volume that results in improved thermomechanical *** thermomechanical properties of polymer nanocomposites,to achieve the ever-increasing performance requirements,can be obtained by tailoring their *** this end,computational analyses of the relations between the thermomechanical properties,e.g.,yield strength,Young modulus,shear modulus,Poisson ratio and coefficient of thermal expansion,in different directions and the microstructures of polymer nanocomposites are *** asymptotic homogenization method （AHm） based on finite element analysis（FEA） is used to model the thermomechanical behaviors of different polymer nanocomposites with periodic *** effects of adding silica and rubber nanoparticles to epoxy resin as a polymer matrix are *** of the nano-particles which differ in volume fraction,material type,size and/or geometry are *** predictions of thermomechanical properties are compared with experimental data.

关键词： Nano-structures Polymer-matrix composites(PmCs) Thermomechanical Computational modeling

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microsystems & Nanoengineering 2018年第1期4卷 509-517页

作者： Hoa Thanh Le Io mizushima yasser Nour Peter Torben Tang Arnold Knott Ziwei Ouyang Flemming Jensen Anpan Han National Center for micro-and Nanofabrication DanchipTechnical University of Denmark2800 Kongens LyngbyDenmark Department of Electrical Engineering Technical University of Denmark2800 Kongens LyngbyDenmark IPU Nils Koppels Allé2800 Kongens LyngbyDenmark

We report a fabrication technology for 3D air-core inductors for small footprint and very-high-frequency power *** process is scalable and highly generic for fabricating inductors with a wide range of geometries and core *** demonstrate spiral,solenoid,and toroidal inductors,a toroidal transformer and inductor with advanced geometries that cannot be produced by wire winding *** inductors are embedded in a silicon substrate and consist of through-silicon vias and suspended *** inductors fabricated with 20 and 25 turns and 280-350μm heights on 4-16 mm2 footprints have an inductance from 34.2 to 44.6 nH and a quality factor from 10 to 13 at frequencies ranging from 30 to 72 *** air-core inductors show threefold lower parasitic capacitance and up to a 140% higher-quality factor and a 230% higher-operation frequency than silicon-core inductors.A 33 mHz boost converter mounted with an air-core toroidal inductor achieves an efficiency of 68.2%,which is better than converters mounted with a Si-core inductor(64.1%).Our inductors show good thermal cycling stability,and they are mechanically stable after vibration and 2-m-drop tests.

关键词： mEmS inductor PwrSoC TSVs very high frequency 3D