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Natural contamination of human hands with enteric parasites in Indian Subcontinent

World Journal of Clinical Infectious Diseases 2013年第2期3卷 13-19页

作者： M Khalid Ijaz Kaisar A Talukder Mohammad Aslam Rashidul Haque Sandipan Ganguly Ishrat J Azmi Md Shawkat Hossain Avik Kumar Mukherjee Dibyendu Raj Ijaz Ahmed Jabeen kamal Joseph R Rubino alam nur-e-kamal Reckitt Benckiser LLC One Philips ParkwayMontvaleNJ 07645United States International Centre for Diarrheal Disease Research BangladeshDhaka-1000Bangla-desh Division of Parasitology National Institute of Cholera and Enteric DiseasesKolkata-700010India Department of Biology Medgar Evers College of the City University of New YorkBrooklynNew YorkNY 11225United States

AIM: To investigate the prevalence of enteric parasite contamination on hands and the potential role naturally contaminated hands may have in their transmission. MeTHODS: Prior to initiating the survey, the protocol was reviewed and approved by respective Institutional Review Boards of each survey site(Dhaka, Bangladesh and Kolkata, India). Both stool and corresponding hand wash samples collected, were analyzed for the presence of enteric parasitic ova/(oo)cysts employing conventional microscopy coupled with permanent staining techniques. Additionally molecular approachessuch as polymerase chain reaction(PCR) of enteric parasites recovered from both stool and corresponding hand wash samples, were also used to further confirm their identity. ReSULTS: A total of 972 stool samples were collected from both sites surveyed(300 volunteers from Kolkata, India and 672 from Dhaka, Bangladesh). Parasitic analysis revealed, 113(38%) from Kolkata, India and 267(40%) of stool samples from Dhaka, Bangladesh were positive for parasitic ova/(oo)cysts. When the corresponding hand wash samples were analyzed, 43(14%) stool-positive volunteers in Kolkata, India and 47(7%) in Dhaka, Bangladesh were positive for enteric parasitic ova/(oo)cysts. Ascaris lumbricoides(A. lumbricoides) ova and Giardia lamblia(G. lamblia) cysts predominated in hands wash samples from both sites surveyed(from India, A. lumbricoides ova, 53%; G. lamblia cysts 31% and from Bangladesh, A. lumbricoides ova, 47%; G. lamblia cysts 19%). Genotypic analysis of enteric parasitic ova/(oo)cysts obtained from both stool and corresponding hand wash samples taken from the same person were found to be identical. CONCLUSION: These results suggest a possible role of hands contaminated with enteric parasites' ova/(oo)cysts in the transmission of these parasites highlighting another role of hand hygiene/proper hand washing in reducing the disease burden in low socioeconomic communities.

关键词： enteric parasites Ascaris lumbricoides Giardia lamblia Natural contamination of hands

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Non-Uniform Doo-Sabin Subdivision Surface via eigen Polygon

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Journal of Systems Science & Complexity 2021年第1期34卷 3-20页

作者： alam Md nur LI Xin School of Mathematical Sciences University of Science and Technology of ChinaHefei 230026China

This paper constructs a new non-uniform Doo-Sabin subdivision scheme via eigen *** authors proved that the limit surface is always convergent and is G1 continuous for any valence and any positive knot intervals under a minor assumption, that λ is the second and third eigenvalues of the subdivision matrix. And then, a million of numerical experiments are tested with randomly selecting positive knot intervals, which verify that our new subdivision scheme satisfies the *** this is not true for the other two existing non-uniform Doo-Sabin schemes in Sederberg, et al.(1998), Huang and Wang(2013). In additional, numerical experiments indicate that the quality of the new limit surface can be improved.

关键词： Doo-Sabin non-uniform splines subdivision

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Nano-enhanced Dairy Scum Biodiesel Blends:Unleashing the Power of Aluminium Oxide for Sustainable and efficient engine Performance

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Journal of Thermal Science 2025年第1期34卷 283-302页

作者： Veeranna MODI Prasad B.RAMPURe Sunil Kumar SHeTTY Madeva NAGARAL Channa Keshava NAIK N Johar MGM Muhammad Irsyad ABDULLAH Abdullah I.AL-MANSOUR Shamshad alam KLe College of engineering and Technology ChikodiVisvesvaraya Technological University Nitte (Deemed to be University) NMAM Institute of Technology (NMAMIT)Department of Mechanical Engineering Aircraft Research and Design Centre HAL Department of Mechanical engineering BGS College of Engineering and TechnologyBengaluruAffiliated to Visvesvaraya Technological University Management and Science University Department of Civil engineering College of EngineeringKing Saud University

This study investigates the effect of aluminium oxide nanoparticlesaddition to biodiesel blends made from dairy milk scum on performance and combustion characteristics of the diesel *** dispersion of Al2O3nanoparticles in B20 blends at different concentrations was done with the help of *** number of blends were prepared for the *** Machine learning algorithms(Random Forest（RF）and CatBoost) was used for the *** results show that in comparison to biodiesel blends without nanoparticles,the kinematic viscosity and density is higher for fuel blends with *** these Fuel blends have higher calorific *** blends exhibited reduced Brake Specific Fuel Consumption（BSFC） of2.85% than the blends without nano particles(Dairy Scum Methyl ester Biodiesel 20%+Neat Diesel 80%（in volume）,DSMeB20),57.14% less CO,40.8% less hydrocarbon,and increased NOxemissions compared to conventional diesel,contributing to the development of environmentally friendly and renewable biofuel blends with *** B20NP30 is the optimal blend for performance and emission *** study concludes with findings on enhanced Brake Thermal efficiency（BTe） of 26.29% in 3×10-5（in volume） Al2O3nanoparticle-blended DSMe B20 and other DSMe B20 fuel blends,emphasizing the importance of optimal nanoparticle *** correlation matrix shows how engine load,efficiency measures（BTe,BSFC）,and emissions（CO,CO2,NOx,Smoke） are connected in complex *** results help us understand the complicated dynamics of engine performance and emission characteristics ***'s diagram for BTe and BSFC shows that CatBoost-based BTe models perform superior to RF-based models during the training as well as testing *** results were obtained for CO and CO2emission results.

关键词： Al2O3 concentration CI engine Dairy Scum Methyl ester Biodiesel

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New structures for closed-form wave solutions for the dynamical equations model related to the ion sound and Langmuir waves

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Communications in Theoretical Physics 2021年第3期73卷 1-13页

作者： Md nur alam M S Osman Department of Mathematics Pabna University of Science and TechnologyPabna6600Bangladesh Department of Mathematics Faculty of ScienceCairo UniversityGiza 12613Egypt Department of Mathematics Faculty of Applied ScienceUnrni Alqura UniversityMakkah 21955Saudi Arabia

This treatise analyzes the coupled nonlinear system of the model for the ion sound and Langmuir *** modified(G'/G)-expansion procedure is utilized to raise new closed-form wave *** solutions are investigated through hyperbolic,trigonometric and rational *** graphical design makes the dynamics of the equations *** provides the mathematical foundation in diverse sectors of underwater acoustics,electromagnetic wave propagation,design of specific optoelectronic devices and physics quantum ***,we concluded that the studied approach is advanced,meaningful and significant in implementing many solutions of several nonlinear partial differential equations occurring in applied sciences.

关键词： the modified(G'/G)-expansion method ion sound wave Langmuir wave closed-form wave solutions

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A Review of the Bentong-Raub Suture vis-à-vis New Insight of the Tectonic evolution of Malay Peninsula,South east Asia

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Acta Geologica Sinica(english edition) 2016年第5期90卷 1865-1886页

作者： Aftab alam KHAN Mustaffa kamal SHUIB Department of Geology University of Malaya Department of Geology University of Dhaka

Genesis of the so-called Bentong-Raub Suture of Malay Peninsula does not fit to the model of subduction-related *** has evolved from transpression tectonics resulting closure and exhumation of the inland basin which underwent extensive back-arc extension during *** having similar thickness（average-35 km） below entire Malay Peninsula nagate collision of two separate continental blocks rather supports single continental block that collided with South China continental block during *** subduction of intervening sea（Proto South China Sea） below Malay Peninsula resulted in widespread I- and S-Type granitization and volcanism in the back-arc basins during *** occurrence of Permo-Triassic Pahang volcanics of predominantly rhyolitic tuff suggest its derivation from back-arc ***-arc extension,basin development and sedimentation of the central belt of the peninsula continued until Cretaceous.A-Type granite of metaluminous to peraluminous character indicates their emplacement in an intraplate tectonic *** Peninsula suffered an anticlockwise rotation due to the rifting of Luconia-Dangerous Grounds from the east Asia in the Late Cretaceous-early *** ductile and brittle deformation including crustal segmentation,pull-apart fracturing and faulting occurred during the closure and exhumation of the basins developed in the peninsula during Late Cretaceous-early *** shortening in the central belt of the peninsula has been accomodated through strike-slip displacement,shearing and uplift.

关键词： Bentong-Raub fault intra-plate tectonics Triassic back-arc extension Cretaceoustranspression Malay Peninsula

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exact traveling wave solutions to higher order nonlinear equations

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Journal of Ocean engineering and Science 2019年第3期4卷 276-288页

作者： Md nur alam Xin Li School of Mathematical Sciences University of Science and Technology of ChinaHefeiAnhuiChina

The present paper applies the new generalized(G/G)-expansion method on three non-linear equations including the fifth-order Korteweg-de Vries equation,(3+1)-dimensional Modified KdV-Zakharov-Kuznetsov equation,and(3+1)-dimensional Jimbo-Miwa equations and obtains some new exact traveling wave *** solutions are checked by putting back into the physical model and are observed to be very advantageous over several existing *** newly method could also be utilized to find exact traveling wave solutions for the other nonlinear evolution equations in the field of applied nonlinear sciences.

关键词： traveling nonlinear wave

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A novel (G'/G)-expansion method and its application to the Boussinesq equation

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Chinese Physics B 2014年第2期23卷 34-43页

作者： Md.nur alam Md.Ali Akbar Syed Tauseef Mohyud-Din Department of Mathematics Pabna University of Science and Technology Department of Applied Mathematics University of Rajshahi Department of Mathematics HITEC UniversityTaxila Cantt

In this article, a novel （G＇/G）-expansion method is proposed to search for the traveling wave solutions of nonlinear evolution equations. We construct abundant traveling wave solutions involving parameters to the Boussinesq equation by means of the suggested method. The performance of the method is reliable and useful, and gives more general exact solutions than the existing methods. The new （G＇/G）-expansion method provides not only more general forms of solutions but also cuspon, peakon, soliton, and periodic waves.

关键词： (G'/G)-expansion method Boussinesq equation solitary wave solutions auxiliary nonlinear ordinary differential equation

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Deposition behavior and tribological properties of diamond-like carbon coatings on stainless steels via chemical vapor deposition

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International Journal of Minerals,Metallurgy and Materials 2018年第11期25卷 1335-1343页

作者： Labani Mustafi M.M.Rahman Mohammad nur e alam Al Nasim Mohammad Asaduzzaman Chowdhury M.H.Monir School of Materials Science and engineering Harbin Institute of TechnologyHarbin 150001China School of engineering RMIT UniversityMelbourneVictoria 3001Australia Dhaka University of engineering and Technology Gazipur 1707Bangladesh

A systematic investigation was carried out to observe the deposition rate of a diamond-like carbon(DLC) coating on two stainless steel substrates by chemical vapor deposition(CVD). The objective of this research is to study the deposition behavior of the DLC coating and its tribological properties in different combinations of methane(CH_4) and nitrogen, which were used as precursor gases. The results reveal that the deposition rate increases with increasing CH_4 content up to 50 vol%. The hardness of the DLC-deposited layer also increases while the friction coefficient decreases with increasing CH_4 gas content up to 50% in the precursor gas mixture.

关键词： diamond-like carbon chemical vapor deposition methane and nitrogen gas mixtures deposition rate hardness friction coefficient

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SNR and RSSI Based an Optimized Machine Learning Based Indoor Localization Approach:Multistory Round Building Scenario over LoRa Network

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Computers, Materials & Continua 2024年第8期80卷 1927-1945页

作者： Muhammad Ayoub kamal Muhammad Mansoor alam Aznida Abu Bakar Sajak Mazliham Mohd Su’ud Malaysian Institute of Information Technology(MIIT) Universiti Kuala LumpurKuala Lumpur50250Malaysia Faculty of Computing and Informatics Multimedia UniversityCyberjaya63100Malaysia Depertment of Computer Science DHA Suffa UniversityKarachiSindh75500Pakistan Riphah Institute of System engineering(RISe) Faculty of ComputingRiphah International UniversityIslamabad46000Pakistan Malaysian France Institute(MFI) Universiti Kuala LumpurKuala Lumpur50250Malaysia Faculty of engineering and Information Technology School of Computer ScienceUniversity of Technology SydneyUltimoNSW 2007Australia

In situations when the precise position of a machine is unknown,localization becomes *** research focuses on improving the position prediction accuracy over long-range(LoRa)network using an optimized machine learning-based *** order to increase the prediction accuracy of the reference point position on the data collected using the fingerprinting method over LoRa technology,this study proposed an optimized machine learning(ML)based *** signal strength indicator(RSSI)data from the sensors at different positions was first gathered via an experiment through the LoRa network in a multistory round layout *** noise factor is also taken into account,and the signal-to-noise ratio(SNR)value is recorded for every RSSI *** study concludes the examination of reference point accuracy with the modified KNN method(MKNN).MKNN was created to more precisely anticipate the position of the reference *** findings showed that MKNN outperformed other algorithms in terms of accuracy and complexity.

关键词： Indoor localization MKNN LoRa machine learning classification RSSI SNR localization

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Inclined magnetic field and variable viscosity effects on bioconvection of Casson nanofluid slip flow over non linearly stretching sheet

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Propulsion and Power Research 2022年第4期11卷 565-574页

作者： Noman Sarwar Muhammad Imran Asjad Sajjad Hussain Md.nur alam Mustafa Inc Department of Mathematics University of Management and TechnologyLahore54770Pakistan School of Aerospace and Mechanical engineering Nanyang Technological University639798Singapore Department of Mathematics Pabna University of Science and TechnologyPabna-6600Bangladesh Department of Mathematics Science FacultyFirat University23119ElazigTurkey

In pursuit of improved thermal transportation,the slip flow of Casson nanofluid is considered in the existence of an inclined magnetic field and radiative heat flux flow over a nonlinear stretching *** viscosity of the fluid is considered as a function of temperature along with the convective thermal boundary *** solutions are obtained via Runge-Kutta along with the shooting technique method for the chosen boundary values *** see the physical insights of the problem,some graphs are plotted for various flow and embedded parameters on temperature function,micro-organism distribution,velocity,and volume fraction of nanoparticles.A decline is observed in the velocity and the temperature for Casson *** and Brownian motion incremented the temperature *** is also found that thermal transportation can be enhanced in the presence of nanoparticles and the bioconvection of *** results are useful in the various sectors of engineering and for heat exchangers working in various technological *** main findings of the problem are validated and compared with those in the existing literature as a limiting case.

关键词： Variable viscosity Bioconvection Inclined field Casson fluid Nonlinearly Stretching sheet Convective boundary Velocity slip Varying viscosity

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