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Novel energy recovery from an integrated municipal solid waste and leachate treatment system

Waste Disposal and Sustainable Energy 2024年第1期6卷 53-61页

作者： Siti salwa Khamis Hadi Purwanto Hamzah Mohd Salleh Alya Naili Rozhan mohamed Abdur Rahman Mahammadsalman Warimani Noor Alam Faculty of Engineering International Islamic University MalaysiaJalan Gombak53100Kuala LumpurMalaysia Department of Engineering Management Universitas Internasional Semen IndonesiaGresikIndonesia Halalan Thayyiban Research Centre Sultan Sharif Ali Islamic UniversityBandar Seri BegawanBrunei Department of Mechanical Engineering P.A.College of EngineeringMangaloreKarnataka574153India Department of Mechanical Engineering Malaysia-Japan International Institute of TechnologyUniversity of Technology Malaysia54100Kuala LumpurMalaysia

Population growth,waste generation,and massive waste mismanagement have led to environmental *** of municipal solid waste(MSW)requires an efficient and sustainable integrated *** integrated thermal processing of MSW is one of the best waste management *** this study,energy analysis of MSW is carried out based on the material and energy balance of 2000 kg wet MSW,which contains 50%*** the leachate is removed,the dry MSW is sent for carbon content enhancement in carbonization to produce MSW-based ***,the combustion of MSW-based char provided high heat and syngas to be used in a hydrothermal process for MSW leachate *** result shows that the char fuel of MSW produces a sufficient amount of energy,13501.29 MJ(84.55%),in the form of synthetic gas by-product,which has a big potential as an energy *** novelty of the proposed integrated thermal system is to produce 84.55%synthetic gas by-product,which is used for electricity production,cooking,food,and heat energy for industrial *** proposed applications of this paper offer insightful information for policymaking regarding novel MSW techniques,which are economical,energy-efficient,and environmentally ***,it increases the effectiveness of MSW utilization.

关键词： Energy Carbonization Hydrothermal Municipal solid waste Integrated system

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Static and dynamic stability responses of multilayer functionally graded carbon nanotubes reinforced composite nanoplates via quasi 3D nonlocal strain gradient theory

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Defence Technology（防务技术） 2022年第10期18卷 1778-1809页

作者： Ahmed Amine Daikh mohamed Sid Ahmed Houari mohamed Ouejdi Belarbi salwa a.mohamed.mohamed.a.eltaher Laboratoire D'Etude des Structures et de Mecanique des Materiaux Departement de Genie CivilFacultedes Sciences et de La TechnologieUniversite Mustapha Stambouli B.P.305R.P.29000MascaraAlgeria Laboratoire de Genie Energetique et Materiaux LGEMUniversite de BiskraB.P.145R.P07000BiskraAlgeria Department of Engineering Mathematics Zagazig UniversityP.O.Box 44519ZagazigEgypt Faculty of Engineering Mechanical Engineering DepartmentKing Abdulaziz UniversityP.O.Box 80204JeddahSaudi Arabia Faculty of Engineering Mechanical Design and Production DepartmentZagazig UniversityP.O.Box 44519ZagazigEgypt

This manuscript presents the comprehensive study of thickness stretching effects on the free vibration,static stability and bending of multilayer functionally graded(FG)carbon nanotubes reinforced composite(CNTRC)*** nanoscale and microstructure influences are considered through a modified nonlocal strain gradient continuum *** on power-law functions,four different patterns of CNTs distribution are considered in this analysis,a uniform distribution UD,FG-V CNTRC,FG-X CNTRC,and FG-O CNTRC.A 3D kinematic shear deformation theory is proposed to include the stretching influence,which is neglected in classical ***'s principle is applied to derive the governing equations of motion and associated boundary *** solutions are developed based on Galerkin method to solve the governing equilibrium equations based on the generalized higher-order shear deformation theory and the nonlocal strain gradient theory and get the static bending,buckling loads,and natural frequencies of *** with previous works is presented.A detailed parametric analysis is carried out to highlight the impact of thickness stretching,length scale parameter(nonlocal),material scale parameter(gradient),CNTs distribution pattern,geometry of the plate,various boundary conditions and the total number of layers on the stresses,deformation,critical buckling loads and vibration *** new results are also reported in the current study,which will serve as a benchmark for future research.

关键词： 3D shear deformation theory Free vibration Buckling Bending Galerkin method Functionally graded nanotube Nonlocal strain gradient theory

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Spectrofluorimetric method for determination of some angiotensin II receptor antagonists

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Journal of Pharmaceutical Analysis 2012年第1期2卷 12-18页

作者： salwa R. El-Shaboury Samiha A. Hussein Niveen A. mohamed mohamed M. El-Sutohy Department of Pharmaceutical Analytical Chemistry Faculty of Pharmacy Assiut University Department of Pharmaceutical Analytical Chemistry Faculty of Pharmacy Al-Azhar University

A simple, rapid, accurate and highly sensitive spectrofluorimetric method has been developed for determination of some angiotensin II receptor antagonists (AIIRA’s), namely Losartan potassium (Los-K), Irbesartan (Irb), Valsartan (Val) and Candesartan cilexetil (Cand) in pure forms as well as in their pharmaceutical dosage forms. All the variables affecting the relative fluorescence intensity (RFI) were studied and optimized. Under the optimum conditions, linear relationships with good correlation coefflcients (0.9982–0.9991) were obtained over the concentration range from 0.006 mg/mL to 1.7 mg/mL. Good accuracy and precision were successfully obtained for the analysis of tablets containing each drug alone or combined with hydrochlorothiazide (HCTZ) without interferences from the co-formulated HCTZ or the additives commonly present in tablets.

关键词： Angiotensin II receptor antagonists Spectrofluorimetry Determination

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Knowledge, attitude and practice of patients with type 2 diabetes mellitus towards complementary and alternative medicine

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Journal of Integrative Medicine 2016年第3期14卷 187-196页

作者： Sulaiman Al-Eidi salwa Tayel Fatima Al-Slail Naseem Akhtar Qureshi Imen Sohaibani mohamed Khalil Abdullah Mohammad Al-Bedah Family & Community Medicine Faculty of Medicine King Saud University Ministry of Health National Center for Complementary and Alternative Medicine Ministry of Health National Diabetes Prevention & Control Program

OBJECTIVE： The use of complementary and alternative medicine（CAM） is relatively common among patients with type 2 diabetes mellitus（T2DM） around the world. Like many other countries, Saudi Arabia has a high incidence of T2DM, and incorporates the use of CAM in its treatment. This study explores the knowledge, attitude and practice（KAP） of CAM therapies among patients with T2DM and explores the relationships between sociodemographics and the KAP of CAM modalities. METHODS： This is a hospital-based, observational, cross-sectional study that selected 302 outpatients with T2DM, from Diabetic Center of King Salman bin Abdul-Aziz Hospital, in Riyadh city, in May 2014. Patients were interviewed using a predesigned questionnaire. RESULTS： The mean age of patients was（51.6 ± 10.6） years and 43.4% of them were males. The prevalence of CAM practices was 30.5%; 30.39% of them used herbs, 20.58% used wet cupping and 17.64% used nutritional supplements and other therapies. The factors found to predict the use of CAM therapies among patients with T2DM were： age above 51 years, unemployment and the participants’ knowledge about the effectiveness of CAM products. CONCLUSION： This preliminary study estimated the prevalence of CAM use, revealed positive attitude towards CAM and found three significant predictors of CAM use among patients with T2DM, which is consistent with regional data. A community-based research with a larger sample that targets T2DM population is needed in Saudi Arabia.

关键词： complementary therapies diabetes mellitus,type 2 prevalence Saudi Arabia

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Novel non-invasive biological predictive index for liver fibrosis in hepatitis C virus genotype 4 patients

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World Journal of Hepatology 2016年第32期8卷 1392-1401页

作者： Mahmoud Khattab mohamed Amin Sakr mohamed Abdel Fattah Youssef Mousa Elwy Soliman Ashraf Breedy Mona Fathi salwa Gaber Ahmed Altaweil Ashraf Osman Ahmed Hassouna Ibrahim Motawea Department of Internal Medicine Minia University Department of Tropical Medicine Ain Shams University Department of Clinical Pathology Ain Shams University Department of Pathology Minia University Department of Pathology Ain Shams University Department of Clinical Pathology Minia University Department of Cardiothoracic Surgery Ain Shams University

AIMTo investigate the diagnostic ability of a non-invasive biological marker to predict liver fibrosis in hepatitis C genotype 4 patients with high accuracy. METHODSA cohort of 332 patients infected with hepatitis C genotype 4 was included in this cross-sectional study. Fasting plasma glucose, insulin, C-peptide, and angiotensin-converting enzyme serum levels were measured. Insulin resistance was mathematically calculated using the homeostasis model of insulin resistance (HOMA-IR). RESULTSFibrosis stages were distributed based on Metavir score as follows: F0 = 43, F1 = 136, F2 = 64, F3 = 45 and F4 = 44. Statistical analysis relied upon reclassification of fibrosis stages into mild fibrosis (F0-F) = 179, moderate fibrosis (F2) = 64, and advanced fibrosis (F3-F4) = 89. Univariate analysis indicated that age, log aspartate amino transaminase, log HOMA-IR and log platelet count were independent predictors of liver fibrosis stage (P CONCLUSIONOur predictive model is easily available and reproducible, and predicted liver fibrosis with acceptable accuracy.

关键词： Liver fibrosis Insulin resistance Aspartate amino transaminase Platelets Age

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The Effect of Simulation-Based Training on Nursing Students’ Communication Skill, Self-Efficacy and Clinical Competence for Nursing Practice

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Open Journal of Nursing 2019年第8期9卷 855-869页

作者： salwa A. mohamed Imad H. Fashafsheh Medical Surgical Nursing Faculty of Nursing Fayoum University Fayoum Egypt Medical Surgical Nursing University of Bisha Bisha Saudi Arabia Critical Care Nursing University of Bisha Bisha Saudi Arabia Nursing College Arab American University Jenin Palestine

Background: Simulation-based training is a new strategy in teaching that gives the students good opportunities to learn and apply what they learn in nursing care safely. Aim: This study conducted to evaluate the effects of simulation-based training on nursing students’ communication skill, self-efficacy and clinical competence in practice. Subjects and Methods: Quiz-experimental design was used in this study (pre-posttest intervention), it was carried out on 100 nursing students first semester in 2019 using low and high-fidelity simulators. This study was carried out at College of Applied Medical Sciences-Bshia University. Data Collection: demographic data, communication skill, self-efficacy and clinical competence questionnaires. Analysis is done by SPSS version 20 software. Results: Participants who received the simulation-based training, showed statistical significant improvement in communication skill, self-efficacy, and clinical competence scores after participation in the simulation program (t = −32.64, p = 0.001;t = −19.9, p = 0.001;16.4, p = 0.001). Also, there are significant relation between gender and clinical competency (t = 2.768, p Conclusion: Simulation-based training in medical courses is effective in enhancing communication skill, self-efficacy and clinical competence. Multiple-patient simulations as a teaching-learning strategy in the nursing curriculum are highly recommended.

关键词： Simulation-Based Nursing Students Communication Skill Self-Efficacy Clinical Competence

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Prognostic Value of Serum Uric Acid Level in Patients with ST Elevation Myocardial Infarction Undergoing Primary Percutaneous Coronary Intervention

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World Journal of Cardiovascular Diseases 2019年第8期9卷 584-599页

作者： mohamed Mahmoud mohamed Abdellatif Ahmed Abdel-Galeel Mohamad A. Alsherif salwa Demtry Faculty of Medicine Assiut University Assiut Egypt

Background: Serum uric acid (SUA) has been correlated with cardiac morbidity and mortality. However, its prognostic value in acute ST-segment elevation myocardial infarction (STEMI) is still uncertain. The aim of this study was to evaluate the prognostic value of SUA on admission in patients with STEMI undergoing primary percutaneous coronary intervention (PPCI). Methods: We prospectively enrolled 150 STEMI patients underwent PPCI. The mean age of the studied population was 56.1 years, 78%?were males?while 22% were females. Patients were divided into tertiles based on the basal serum uric acid level. Patients with high SUA (n = 72) was defined as a value in the third tertile (>6.4 mg/dl), and a low SUA group (n = 78) was set as a value in the lower two tertiles ( Results: SUA level on admission carried prognostic value in patients with STEMI undergoing PPCI where the low uric acid group had better KILLIP class (P =0.001), better TIMI flow (P = 0.001), higher ejection fraction (49.53 ± 8.75 versus 39.95 ± 7.06;P =0.001), better survival and lower incidence of other major adverse cardiac events (MACE) (P = 0.01) during the hospital stay and three months follow up?than the high uric acid group. Age, SUA > 6 mg/dl, TIMI flow, Killip class and EF 40% were independent predictors for MACE in such patients. Conclusions: High SUA level on admission was associated with higher frequency of in-hospital and three months follow up MACE in patients with acute STEMI undergoing PPCI.

关键词： Uric Acid Primary Angioplasty STEMI

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A Descriptive Cross-Sectional Study to Assess the Perception and Knowledge of Staff Nurses regarding Physical Restrains

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Open Journal of Nursing 2019年第3期9卷 239-248页

作者： Imad Fashafsheh salwa mohamed Ahmad Ayed Deyaaldeen ALRababah Nursing Department University of Bisha Bisha Saudi Arabia Nursing College Arab American University Jenin Palestine Nursing College Fayoum University Fayoum Egypt Alfarabi Colleges of Dentistry and Nursing Riyadh Saudi Arabia

Purpose: The purpose of this study was to examine the perceptions and knowledge regarding physical restraint used among registered nurses (RNs) and nursing assistants (NAs). Method and Sample: A descriptive cross-sectional design was used. A convenient sample was recruited from nursing staff from Palestinian and Saudi Hospitals. Perceptions of Restraint Use Questionnaire (PRUQ) were used [1]. Results: A total of 144 nursing staffs were included. Physical restraint use was perceived as more important in some circumstances than others. In the critical care unit/ICU, the most important perceived reason for physical restraint use was protecting from falling out of bed and preventing removing dressing. There were significant differences of overall score for the PRUQ among all nursing staff according to hospital, t (142) = 8.74, P = 0.001. The mean of Saudi Arabia hospitals group (M = 4.56) was higher than the mean of Palestinian hospital group (M = 3.67). At the same time, there were significant differences of overall score for the PRUQ among all nursing staff according to specialized education in geriatrics, t (40) = 3.60, P = 0.001. The mean of no specialized education in geriatrics group (M = 4.13) was higher than the mean of yes specialized education in geriatrics group (M = 3.69). Conclusion and Implications: Nursing staff showed positive attitudes towards restrains application with difference between Palestinian and Saudi Arabian nurses. Proper implementation and good awareness of the complications are prerequisite for application of physical restrains for patients.

关键词： Perception Knowledge Nursing Staff Physical Restraints

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Bloodstream Bacterial Infection in Neutropenic Acute Leukemia Patients

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Journal of Cancer Therapy 2020年第5期11卷 296-305页

作者： salwa I. Abedelnasser Hala F. mohamed Asmaa M. Zahran Department of Botany and Microbiology Faculty of Science (Girls Branch) University of Al-Azhar Cairo Egypt Third Institute of Oceanography Natural Resources Xiamen China South Egypt Cancer Institute Assiut University Assuit Egypt.

Objective: The rapid detection of blood stream infection has the potential to not only improve patient outcomes due to quicker administration of appropriate antibiotics but also improve antibiotic stewardship by reducing patient exposures to ineffective or unnecessary broad-spectrum antibiotics. Methods: In this study blood samples from acute leukemia neutropenic patients (samples under study) and non neutropenic patients (control) were tested using cultural and non-cultural based techniques via blood culture, C-reactive protein (CRP), Erythrocyte sedimentation rate (ESR) and Molecular techniques (bacterial 16S rDNA analysis). Results: About 22% & 15% were shown positive in blood culturing;94% & 85% were positive for CRP;86% and 75% were presented by elevation in ESR rate for the first hour;94% and 80% were presented by elevation in ESR rate for second hour. Treatment response of the positive cases by blood culture only was found to be 72.7% and 100% not in remission for samples under study and control respectively. In cases under study there is statistically significant correlation between culture growth sensitivity and PCR technique with P value 0.005.

关键词： Bloodstream Infection (BSI) Blood Cultures Biomarkers Molecular Techniques

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Rosmarinic acid attenuates hepatic fibrogenesis via suppression of hepatic stellate cell activation/proliferation and induction of apoptosis

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Asian Pacific Journal of Tropical Medicine 2017年第5期10卷 423-432页

作者： Naglaa M.El-Lakkany Walaa H.El-Maadawy Sayed H.Seif el-Din Olfat A.Hammam salwa H.mohamed Shahira M.Ezzat Marwa M.Safar Samira Saleh Department of Pharmacology Theodor Bilharz Research InstituteWarak El-HadarImbaba P.O.Box 30Giza 12411Egypt Department of Pathology Theodor Bilharz Research InstituteWarak El-HadarImbaba P.O.Box 30Giza 12411Egypt Department of Immunology Theodor Bilharz Research InstituteWarak El-HadarImbaba P.O.Box 30Giza 12411Egypt Department of Pharmacognosy Faculty of PharmacyCairo UniversityCairo 11562Egypt Department of Pharmacology and Toxicology Faculty of PharmacyCairo UniversityCairo 11562Egypt

Objective:To investigate the antifibrotic role of rosmarinic acid(RA),a natural polyphenolic compound,on HSCs activation/proliferation and apoptosis in vitro and in vivo. Methods:The impact of RA on stellate cell line(HSC-T6) proliferation,activation and apoptosis was assessed along with its safety on primary hepatocytes. In vivo,rats were divided into:(i) normal;(ii) thioacetamide(TAA)-intoxicated rats for 12 weeks;(iii) TAA+silymarin or(iv) TAA+RA. At the end of experiment,liver functions,oxidative stress,inflammatory and profibrogenic markers,tissue inhibitor metalloproteinases type-1(TIMP-1) and hydroxyproline(HP) levels were evaluated. Additionally,liver histopathology and immunohistochemical examinations of alpha-smooth muscle actin(α-SMA),caspase-3 and proliferation cellular nuclear antigen(PCNA) were determined. Results:RA exhibited anti-proliferative effects on cultured HSCs in a time and concentration dependent manner showing an IC50 of 276 μg/mL and 171 μg/mL for 24 h and 48 h,respectively,with morphological reversion of activated stellate cell morphology to quiescent form. It significantly improved ALT,AST,oxidative stress markers and reduced TIMP-1,HP levels,inflammatory markers and fibrosis score(S1 vs S4). Furthermore,reduction in α-SMA plus elevation in caspase-3 expressions of HSCs in vitro and in vivo associated with an inhibition in proliferation of damaged hepatocytes were recorded. Conclusions:RA impeded the progression of liver fibrosis through inhibition of HSCs activation/proliferation and induction of apoptosis with preservation of hepatic architecture.

关键词： Hepatic fibrosis Hepatic stellate cells Rosmarinic acid Apoptosis Proliferation Profibrogenic markers

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