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Identification of Bifidobacterium animalis, Bifidobacterium adolescentisand Bifidobacterium bifidumfrom Stool of Children and Detection of Their Antibacterial Properties

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Advances in Infectious Diseases 2013年第3期3卷 200-204页

作者： mansour amin Ahmad Farajzadeh Sheikh Hamed Goodarzi Mehdi Sormeh Department of Microbiology School of Medicine Ahvaz Jundishapur University of Medical Sciences (AJUMS) Ahvaz Iran

Introduction and Objective: The genus Bifidobacterium can generally be found in quantity in the habitats such as human and animal gastrointestinal tract, dental caries, vagina and oral cavity. The aim of this study was to isolate Bifidobacterium from stool and determine their inhibitory effect against some pathogens. Materials and Methods: 130 samples were collected by wet swabs and kept in sterile tubes containing MRS broth media. And Bifidobacterium isolated from stool was enriched in Man-Rogosa-Sharpe medium (MRS) broth and isolated by growing on MRS agar medium and characterized by phenotypic characteristics and PCR technique at genus and species levels. The antimicrobial substance was extracted from ethyl acetate solvent and the antimicrobial activity against some pathogenic bacteria, such as Salmonella typhi and Shigella sonnei, were investigated. Results: Eleven Bifidobacterium bifidum and four Bifidobacterium adolescentis, which were isolated from fresh stool, were identified by PCR. Antimicrobial substance from MRS broth medium was extracted. This antimicrobial compound showed a potent inhibitory activity against four tested bacteria. These bacteria produced acetic acid and lactic acid as inhibitory substances that were different from bacteriocins. Conclusion: Fresh stool may be used as a source of antimicrobial lactic acids bacteria, Bifidobacterium bifidum and adolescentis as two probiotics can establish themselves in gut and urogenital tract to prevent the human body from adverse effects of pathogens.

关键词： Bifidobacterium PCR Antimicrobial Substance Stool

Effects of shallomin and podophyllin solution 25% for genital HPV warts in women: a randomized controlled trial

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Journal of Acute Disease 2019年第3期8卷 118-122页

作者： Shadab Shahali mansour amin Masoumeh Khajeh Hassani Reza Yaghoobi Morteza Saki Department of Reproductive Health and Midwifery Faculty of Medical SciencesTarbiat Modares UniversityTehranIran Infectious and Tropical Diseases Research Center Health Research InstituteAhvaz Jundishapur University of Medical SciencesAhvazIran Department of Microbiology Faculty of MedicineAhvaz Jundishapur University of Medical SciencesAhvazIran Department of Midwifery Reproductive Health Promotion Research CenterAhvaz Jundishapur University of Medical SciencesAhvazIran Department of Dermatology Ahvaz Jundishapur University of Medical SciencesAhvazIran Student Research Committee Ahvaz Jundishapur University of Medical SciencesAhvazIran

Objective: To compare the effect of shallomin (pure fraction of Allium hirtifolium) with podophyllin 25% solution on external genital human papillomavirus warts in women. Methods: This study was a randomized controlled trial which was performed on two groups of 25 Iranian women with external genital warts at Imam Khomeini Hospital in Ahvaz, Iran. In the first group, shallomin was used once a day for six weeks at home. In the second group, 25% podophyllin solution, was applied on the lesion once weekly for six weeks. Results: Shallomin and podophyllin resulted in wart clearance in 13/23 (56.5%), and 12/24 (50%) of patients, respectively. The clearance rate for shallomin was not significantly different from that of podophyllin (P=0.082). Six weeks after the treatment, the sizes of the lesions in the shallomin group and the podophyllin group decreased by (1.43±0.53) mm and (1.64±0.70) mm, respectively. Conclusion: Shallomin is an effective treatment for genital warts, with similar efficacy to that of podophyllin.

关键词： Podophyllin Genital wart Human papillomavirus

MARIE:One-Stage Object Detection Mechanism for Real-Time Identifying of Firearms

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Computer Modeling in Engineering & Sciences 2025年第1期142卷 279-298页

作者： Diana Abi-Nader Hassan Harb Ali Jaber Ali mansour Christophe Osswald Nour Mostafa Chamseddine Zaki Computer Science Department Faculty of SciencesLebanese UniversityBeirut146404Lebanon College of Engineering and Technology American University of the Middle EastEgaila54200Kuwait Lab-STICC CNRS UMR 6285ENSTA-BretagneBrest29200France

Security and safety remain paramount concerns for both governments and individuals *** today’s context,the frequency of crimes and terrorist attacks is alarmingly increasing,becoming increasingly intolerable to ***,there is a pressing need for swift identification of potential threats to preemptively alert law enforcement and security forces,thereby preventing potential attacks or violent *** advancements in big data analytics and deep learning have significantly enhanced the capabilities of computer vision in object detection,particularly in identifying *** paper introduces a novel automatic firearm detection surveillance system,utilizing a one-stage detection approach named MARIE(Mechanism for Realtime Identification of Firearms).MARIE incorporates the Single Shot Multibox Detector(SSD)model,which has been specifically optimized to balance the speed-accuracy trade-off critical in firearm detection *** SSD model was further refined by integrating MobileNetV2 and InceptionV2 architectures for superior feature extraction *** experimental results demonstrate that this modified SSD configuration provides highly satisfactory performance,surpassing existing methods trained on the same dataset in terms of the critical speedaccuracy *** these innovations,MARIE sets a new standard in surveillance technology,offering a robust solution to enhance public safety effectively.

关键词： Firearm and gun detection single shot multi-box detector deep learning one-stage detector MobileNet inception convolutional neural network

Pullout behavior of polymeric strip in compacted dry granular soil under cyclic tensile load conditions

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Journal of Rock Mechanics and Geotechnical Engineering 2018年第5期10卷 968-976页

作者： Sajad Razzazan amin Keshavarz mansour Mosallanezhad School of Engineering Persian Gulf University Department of Civil and Environmental Engineering Shiraz University

Assessment of the reinforcement behavior of soil under cyclic and monotonic loads is of great impor- tance in the safe design of mechanically stabilized earth walls, In this article, the method of conducting a multistage pullout （MSP） test on the polymeric strip （PS） is presented, The post-cyclic behavior of the reinforcement can be evaluated using a large-scale pullout apparatus adopting MSP test and one-stage pullout （OSP） test procedures, This research investigates the effects of various factors including load amplitude, load frequency, number of load cycles and vertical effective stress on the peak apparent coefficient of friction mobilized at the soil-PS interface and the pullout resistance of the PS buried in dry sandy soil. The results illustrate that changing the cyclic tensile load frequency from 0,1 Hz to 0,5 Hz does not affect the pullout resistance. Moreover, the influence of increasing the number of load cycles from 30 to 250 on the peak pullout resistance is negligible. Finally, the effect of increasing the cyclic tensile load amplitude from 20% to 40% on the monotonic pullout resistance can be ignored. The peak apparent coefficient of friction mobilized at the soil-PS interface under monotonic and cyclic load conditions decreases with the increase in vertical effective stress.

关键词： Geosynthetics Post-cyclic pullout behavior Interface apparent coefficient of friction Multistage pullout (MSP) test

The concentration and probabilistic risk assessment of potentially toxic elements in fillets of silver pomfret(Pampus argenteus):A global systematic review and meta-analysis

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Journal of Environmental Sciences 2021年第2期33卷 167-180页

作者： Mohammadreza Alipour mansour Sarafraz Hossein Chavoshi Abotaleb Bay Amene Nematollahi Mohsen Sadani Yadolah Fakhri Yasser Vasseghian amin Mousavi Khaneghah Student Research Committee School of Public Health and SafetyShahid Beheshti University of Medical SciencesTehran***Iran Department of Anatomy Shahid Beheshti University of Medical SciencesTehran***Iran Enuvironmental Health Research Center Golestan University of Medical SciencesGolestan***Iran Department of Food Safety and Hygiene School of HealthFasa University of Medical SciencesFasa***Iran Department of Environmental Health Engineering School of Public Health and SafetyShahid Beheshti Universityof Medical SciencesTehran***Iran Food Health Research Center Hormozgan University of Medical SciencesBandar Abbas***Iran Institute of Research and Development Duy Tan UniversityDa Nang 550000Vietnam Department of Food Science Faculty of Food Engineering University of Campinas(Unicamp)Rua Monteiro Lobato80 Caixa 6121 CampinasSao Paulo13083-862Brazil

The contamination of fish type products such as silver pomfret fish fillets by potentially toxic elements(PTEs)has raised global health *** studies regarding the concentration of PTEs in fillets of silver pomfret fish were retrieved among some international databases such as Scopus,Pub Med and Embase between 1 January 1983 and 10 March *** pooled(mean)concentration of PTEs in fillets of silver pomfret fish was meta-analyzed with the aid of a random-effect model(REM).Also,the non-carcinogenic risk was estimated via calculating the 95 th percentile of the total target hazard quotient(TTHQ).The meta-analysis of 21 articles(containing 25 studies or data reports)indicated that the ranking of PTEs in fillets of silver pomfret fish was Fe(11,414.81μg/kg wet weight,ww)>Zn(6055.72μg/kg ww)>Cr(1825.79μg/kg ww)>Pb(1486.44μg/kg ww)>Se(1053.47μg/kg ww)>Cd(992.50μg/kg ww)>Ni(745.23μg/kg ww)>Cu(669.71μg/kg ww)>total As(408.24μg/kg ww)>Co(87.03μg/kg ww)>methyl Hg(46.58μg/kg ww).The rank order of health risk assessment by country based on the TTHQ for adult consumers was Malaysia(2.500)>Bangladesh(0.886)>Iran(0.144)>China(0.045)>Pakistan(0.020)>India(0.015),while the corresponding values for child consumers was Malaysia(11.790)>Bangladesh(4.146)>Iran(0.675)>China(0.206)>Pakistan(0.096)>India(0.077).The adult consumers in Malaysia and children in Malaysia and Bangladesh were at considerable non-carcinogenic ***,following the recommended control plans in order to reduce the health risk associated with the ingestion of PTEs via consumption of silver pomfret fish fillets is crucial.

关键词： Potentially toxic elements Heavy metals Silver pomfret Pampus argenteus Marine foods Health risk assessment

Numerical prediction of hydrodynamic cavitating flow structures and their corresponding erosion

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Journal of Hydrodynamics 2021年第3期33卷 546-571页

作者： Amirhossein Mohammadkhani mansour Alizadeh Department of Mechanical Engineering Iran University of Science and TechnologyTehranIran

Hydrodynamic cavitating flows usually consist of 3-D intense vortical flows that are detached from solid *** vortical flows normally generate heaps of cavitating flow structures,which,in turn,govern the location of cavitation erosion before ***,this study introduces a new numerical approach based on the improved delayed detached eddy simulation(IDDES)turbulence modeling for predicting cavitating ***,the solution of compressible Eulerian-Eulerian two-phase flow and the IDDES turbulence model was linked to the microjet hypothesis and unsteady behavior of pressure and vapor volume to predict the corresponding erosion of cavitating *** method for cavitation erosion prediction,a modified version taken from previous studies,was applied as a post-processing *** validation of cavitating flow predictions was performed for the first time on the Grenoble axisymmetric nozzle by comparing them with 21 photos of cavitation from the previous experimental *** results showed that the present numerical approach estimated various features of hydrodynamic cavitation well,including shedding processes and the length,shape,and collapse of cavitating *** the numerical analysis,three main stages were detected for the present cavitating flow,and the vorticity-cavitation interactions were investigated by the vorticity transport *** streak-like and tube-like cavitating(STLIC and TULIC)structures were introduced in the second stage,initiated by flow instability,and entirely governed by corresponding turbulent flow *** collapse of these cavitating structures is one of the primary sources of cavitation erosion on lower and upper *** results of the numerical erosion predictions were compared with those of the previous erosion tests on the Grenoble axisymmetric *** numerical performance was achieved in predicting the location and intensity of cavitation erosion.

关键词： Turbulent and cavitating structures cavitation erosion detached vortical flow Hybrid RANS-LES turbulence modeling flow instability flow visualization

Spatial analysis of public health facilities in Riyadh Governorate,Saudi Arabia:a GIS-based study to assess geographic variations of service provision and accessibility

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Geo-Spatial Information Science 2016年第1期19卷 26-38页

作者： Shawky mansour Faculty of Arts Department of Geography and GISAlexandria UniversityEl ShatbyAlexandriaEgypt

Much attention has been given to address public health policy in Saudi Arabia,particularly for the management,quality,and coverage ***,assessment of spatial patterns,distribution,and provision of public health services has been *** paper analyzes the availability and accessibility of public health facilities across Riyadh Governorate,Saudi Arabia at the subnational *** and attribute data of public health facilities potentially have been analyzed using GIS to produce accurate measure of *** spatial pattern of service distribution was examined using average nearest *** from demand points(populations)to providers(facilities)were calculated for each district using near *** addition,the ratios of public health facility to population were calculated to identify underserved and overserved *** findings clearly indicate that the spatial pattern of the distribution of public health facilities was significantly clustered(p value<0.001)with Z-score of–*** districts within the central parts of the governorate were identified as having a higher density of facilities,while most of districts that are located in the marginal parts exhibit very low density of health ***,there was a considerable variation in the average distance from district centroids to health ***,less than half of the population(45.4%)living in 61 districts has access to public health facility within less than 1-km *** contrast,the greatest increase in distances was observed for 6%of population living in 38 *** that live in such districts need to travel long distances for public health *** output of this analysis can assist policy-makers and authorities of Riyadh Governorate in planning public health delivery.

关键词： GIS public health facilities accessibility availability Riyadh Governorate

Properties and corrosion behavior of Al based nanocomposite foams produced by the sintering-dissolution process

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International Journal of Minerals,Metallurgy and Materials 2018年第1期25卷 94-101页

作者： Mostafa Amirjan mansour Bozorg Metallurgy Division Department of Chemical and Materials EngineeringNiroo Research InstituteTehran ***Iran Faculty of Chemical&Materials Engineering Shahrood University of TechnologyShahrood ***Iran

The properties orAl based nanocomposite metal foams and their corrosion behaviors were investigated in this study. For this, the composite metal foams with different relative densities （porosity） reinforced with alumina nanoparticles were prepared using a powder me- tallurgy-based sintering-dissolution process （SDP） and NaC1 particles were used as space holders. Then, the effect of nanoparticle rein- forcement and different amounts of NaC1 space holders （corresponding porosity） on the microstructure, morphology, density, hardness, and electrochemical specifications of the samples were investigated. It was found that as the relative density increased from 60% to 70%, the wall thickness increased from about 200 to 300 pro, which led to a decrease in pore size. Also, the addition of nanoparticle reinforcement and the increased relative density result in increasing metal foam hardness. Moreover, electrochemical test results indicated that increasing the A1203 content reduced the corrosion rate, but increasing the porosity enhanced it.

关键词： aluminum-alumina nanocomposite metal foam sintering-dissolution process corrosion behavior electrochemical impedance

Chemo- and regioselective hydroboration of Δ^(14,15) in certain cephalostatin analogue

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Chinese Chemical Letters 2008年第12期19卷 1391-1394页

作者： mansour Nawasreh Basic Sciences Department Faculty of Engineering TechnologyAI-Balqa Applied UniversityP.B.15008Marka11134 AmmanJordan

The symmetrical diketone Ⅱ, which can be synthesized in gram scale using a well established method, was used as a starting material to prepare the 11α-methoxy ketomethylene Ⅵ. This is in continuation of our study aiming at the synthesis of multihydroxylated cephalostatin analogues, as for example cephalostatin 1Ⅰ, a potent anti-tumor natural product. Compound Ⅵ underwent chemo- and regioselective hydroboration reaction at only one of △14.15 double bonds furnishing compound Ⅸ as a major product in a fair yield.

关键词： Cephalostatin 1 Diketone Hydroboration of △^14,15 double bond Anti-cancer activity