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Occurrence of viable but non-culturable(VBNC)pathogenic bacteria in tap water of public places

Frontiers of Environmental Science & Engineering 2024年第3期18卷 115-129页

作者： Lizheng Guo Xinyan Xiao kassim Chabi Yiting Zhang Jingjing Li Su Yao Xin Yu China National Research Institute of Food and Fermentation Industries Co. Ltd.China Center of Industrial Culture CollectionBeijing 100015China Key Laboratory of Urban Environment and Health Institute of Urban EnvironmentChinese Academy of SciencesXiamen 361021China College of Environment&Ecology Xiamen UniversityXiamen 361102China

Viable but non-culturable(VBNC)bacteria have been detected in source water and effluent of drinking water treatment processes,leading to significant underestimation of viable cell *** information exists on VBNC bacteria in tap water,particularly in public *** address this gap,a comprehensive nine-month study was conducted in a major city in south-eastern China,using culture-based and quantitative PCR with propidium monoazide(PMA)dye ***-five samples were collected from five representative public places(railway station,campus,hospital,shopping mall,and institution).The findings revealed that culturable bacteria represented only 0–17.51%of the viable 16S rRNA genes,suggesting that the majority of viable bacteria existed in an uncultured or VBNC ***,opportunistic pathogens such as Escherichia coli,Enterococcus faecalis,Pseudomonas aeruginosa,Salmonella sp.,and Shigella *** primarily detected as VBNC cells,with concentrations ranging from 1.03×10^(0)to 3.01×10^(3),1.20×10^(0)to 1.42×10^(2),1.32×10^(0)to 8.82×10^(0),1.00×10^(0)to 6.71×10^(1),and 2.07×10^(0)to 1.93×10^(2)cell equivalent/100 mL,*** *** was observed in tap water after prolonged stagnation,indicating potential risks associated with bacterial *** and temporal factors accounted for 17.1%and 26.0%,respectively,of the variation in tap water community structure during the sampling period,as revealed by 16S rRNA amplicon *** study provides quantitative insights into the occurrence of VBNC bacteria in tap water and highlights the need for more sensitive monitoring methods and microbial control techniques to enhance tap water safety in public locations.

关键词： VBNC Pathogenic bacteria PMA treatment Public tap water Community structure

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Comparative Study of Proximate,Chemical and Physicochemical Properties of Less Explored Tropical Leafy Vegetables

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Journal of Northeast Agricultural University(English Edition) 2018年第1期25卷 16-23页

作者： Grace Oluwakemi Babarinde Victoria Funmilayo Abioye Odunayo Omobitan kassim raji Department of Food Science and Engineering Ladoke Akintola University of Technology

The list of underutilized green leafy vegetables is enormous: ranging from commonly consumed and underutilized vegetables. There are data on commonly consumed vegetables, but information is sparse on nutritional, chemical and anti-nutritional properties of less explored vegetables. This work aimed to evaluate some attributes of less explored or underutilized leafy vegetables. Some nutritional and anti-nutritional contents of 10 under-utilized leafy vegetables(Amaranthus spinosus Linnaeus, Basella alba Linnaeus, Corchorous tridens L., Cyrtosperma senegalense(Schott), Erigeron floribundus Sch, Hoslundia opposita Vahl, Lagenaria siceraria(Molina) Standl, Ocimum basilicum L., Solanum aethiopicum L. and Talinum portulacifolium(Forssk.) Asch. ex Schweinf) were investigated. Cyrtosperma senegalense had the highest protein value(5.93%). Hoslundia opposita had the highest fat content(0.54%). Amaranthus spinosus was high in β-carotene content(346.3 mg · 100 g-1); Cyrtosperma senegalense had the highest moisture content. A. spinosus had the highest ascorbic acid content(108.1 mg · 100 g-1). The highest tannin level(0.0057%) was found in C. senegalense and the lowest(0.0003%) was found in Solanum aethiopicum. Saponin was the highest in C. tridens(0.0052%) and the lowest in T. portulacifolium(0.00014%). C. senegalense and S. aethiopicum had their highest and the lowest phytate values, respectively. Although anti-nutrients could interfere with nutrient utilization, their values in these vegetables were not at toxic levels.

关键词： leafy vegetable nutritional attribute anti-nutritional property

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Smart Farming for Sustainable Rice Production:An Insight into Application,Challenge,and Future Prospect

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Rice science 2024年第1期31卷 47-61页

作者： Norhashila HASHIM Maimunah Mohd ALI Muhammad Razif MAHADI Ahmad Fikri ABDULLAH Aimrun WAYAYOK Muhamad Saufi Mohd kassim Askiah JAMALUDDIN Department of Biological and Agricultural Engineering/SMART Farming Technology Research Centre Faculty of EngineeringUniversiti Putra MalaysiaSelangor 43400Malaysia Department of Food Sciences Faculty of Science and TechnologyUniversiti Kebangsaan MalaysiaSelangor 43600Malaysia Department of Resource Management&Consumer Studies Faculty of Human EcologyUniversiti Putra MalaysiaSelangor 43400Malaysia

Rice has a huge impact on socio-economic growth,and ensuring its sustainability and optimal utilization is *** review provides an insight into the role of smart farming in enhancing rice *** applications of smart farming in rice production including yield estimation,smart irrigation systems,monitoring disease and growth,and predicting rice quality and classifications are *** challenges of smart farming in sustainable rice production to enhance the understanding of researchers,policymakers,and stakeholders are *** efforts have been exerted to combat the issues in rice production in order to promote rice sector *** effective implementation of smart farming in rice production has been facilitated by various technical advancements,particularly the integration of the Internet of Things and artificial *** future prospects of smart farming in transforming existing rice production practices are also *** the utilization of smart farming,the rice industry can attain sustainable and resilient production systems that could mitigate environmental impact and safeguard food ***,the rice industry holds a bright future in transforming current rice production practices into a new outlook in rice smart farming development.

关键词： rice production smart farming food security agriculture sustainability

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Numerical Modeling and Technico-Economic Analysis of a Hybrid Energy Production System for Self-Consumption: Case of Rural Area in the Comoros

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Journal of Power and Energy Engineering 2024年第5期12卷 24-59页

作者： Fahad Maoulida Mohamed Aboudou kassim Rabah Djedjig Ahmed Ihlal Mohammed El Ganaoui LERMAB Laboratory of Studies and Research on Wood Material IUT of Longwy University of Lorraine Cosnes-et-Romain Longwy France LEMA Energy and Applied Mechanics Laboratory Faculty of Sciences and Techniques University of Comoros Moroni Comoros IREMIS Institute University of Mayotte Mayotte France LMER Laboratory of Materials and Renewable Faculty of Sciences University Ibn Zohr BP Agadir Morocco

This study aims to provide electricity to a remote village in the Union of Comoros that has been affected by energy problems for over 40 years. The study uses a 50 kW diesel generator, a 10 kW wind turbine, 1500 kW photovoltaic solar panels, a converter, and storage batteries as the proposed sources. The main objective of this study is to conduct a detailed analysis and optimization of a hybrid diesel and renewable energy system to meet the electricity demand of a remote area village of 800 to 1500 inhabitants located in the north of Ngazidja Island in Comoros. The study uses the Hybrid Optimization Model for Electric Renewable (HOMER) Pro to conduct simulations and optimize the analysis using meteorological data from Comoros. The results show that hybrid combination is more profitable in terms of margin on economic cost with a less expensive investment. With a diesel cost of $1/L, an average wind speed of 5.09 m/s and a solar irradiation value of 6.14 kWh/m2/day, the system works well with a proportion of renewable energy production of 99.44% with an emission quantity of 1311.407 kg/year. 99.2% of the production comes from renewable sources with an estimated energy surplus of 2,125,344 kWh/year with the cost of electricity (COE) estimated at $0.18/kWh, presenting a cost-effective alternative compared to current market rates. These results present better optimization of the used hybrid energy system, satisfying energy demand and reducing the environmental impact.

关键词： Hybrid System Rural Area Electrification Comoros Techno-Economic Analysis PV-Wind-Diesel-Battery Meteorological Data HOMER Energy Pro

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Pleomorphic Adenoma of the Salivary Glands: Two Atypical Locations

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International Journal of Otolaryngology and Head & Neck Surgery 2024年第3期13卷 251-257页

作者： Sidibé Youssouf Diarra Abraham Samaké Djibril Sanogo Boubacar Traoré Abdoul Moumine Diarra kassim Coulibaly Bourama Diakité Youssouf Keita Mohamed Amadou Department of ENT and Head and Neck Surgery Mother-Child University Hospital “ Le Luxembourg&#8221 Bamako Mali Faculty of Medicine and Odontostomatology Bamako Mali Department of ENT and Head and Neck Surgery The Mali-Gavardo Hospital Bamako Mali Ministry of Higher Education and Scientific Research Bamako Mali ENT and Head and Neck Surgery Department of the Commune V Reference Health Center (CSRef CV) Bamako Mali Department of ENT and Head and Neck Surgery at CHU Gabriel Touré Bamako Mali Department of Anatomy and Pathological Cytology Gabriel Tour&#233 University Hospital Center Bamko Mali Department of Oral Surgery Sikasso Regional Hospital Sikasso Mali

Pleomorphic adenoma is the most common tumor of the salivary glands, accounting for approximately 50% of salivary gland lesions. It develops mainly in the salivary glands: parotid (80%), submaxillary (10%), sublingual (1%) and in the accessory oral-pharyngeal glands (9%). The aim of this work was to report 2 cases of pleomorphic adenoma of atypical location and then to discuss the difficulties linked to its diagnostic and therapeutic management in the Malian context. They were a 40-year-old man and a 72-year-old woman. They were admitted to the ENT department of the “Luxembourg Mere-infant” hospital for oropharyngeal swelling for the first and swelling of the palate for the second. The clinical expression was a swelling in both cases, of a hard, mobile consistency with healthy mucosa on their surface. The remainder of the physical examination was unremarkable. The diagnosis of a tumor of the oropharynx and palate was made following clinical radiological examinations. The histopathological examination of the surgical specimen made it possible to make the diagnosis of pleomorphic adenoma of the palate and the left palatine tonsil. The follow-up surgery was straightforward, with a favorable outcome. Pleomorphic adenomas are relatively rare benign tumors of the accessory salivary glands;their clinical expression remains swelling. Therapeutic management is surgery and the diagnosis is confirmed by histopathological examination.

关键词： Pleomorphic Adenoma Palate Tonsil Mali

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Seroprevalence of SARS-COV-2 Exposure among “High-Risk” Populations (Healthcare Workers, People Who Attend Markets, and School Children) in Zanzibar

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Advances in Infectious Diseases 2024年第1期14卷 34-55页

作者： Ame Masemo Solomon Mwakasungula Khamis Kheir Erick Mgina Nahya Khamis Irabi kassim Bihila Bakar Khamis Salim Sarah Mswata Kibwana Omar Theckla Kazimoto Linzy Elton Honorati Masanja Mayassa Ally Zanzibar Health Research Institute Binguni Zanzibar Ifakara Health Institute Bagamoyo Tanzania National Institute for Medical Research Muhimbili Centre Dar es Salaam Tanzania Binguni Public Health Laboratory Binguni Zanzibar Department of Microbiology Mnazi Mmoja Hospital Stone Town Zanzibar Centre for Clinical Microbiology Royal Free Hospital Campus University College London London UK

In Zanzibar, from the start of the pandemic in March 2020 to the time of sampling in December 2020, SARS-CoV-2 seroprevalence data was limited. We conducted a seroprevalence study to evaluate the magnitude of SARS-CoV-2 exposure among healthcare workers, school children, and people who attended general markets in Zanzibar. The objectives of the study were to analyse the total antibodies from selected higher-risk population groups in order to determine magnitude in SARS CoV-2 exposure. Blood samples were collected from eligible and consented participants (adults and children), and their serum was analyzed for total antibodies against SARS-CoV-2 using ELISA. A questionnaire was used to collect participants’ demographic and clinical data. The overall SARS-CoV-2 seroprevalence across all age groups was 33%, and a higher seroprevalence was observed in the 40 - 49 years’ age group relative to other ages as well as in those who attended markets. A runny nose (18.8% of participants) was the most frequently reported SARS-CoV-2 infection-related symptom. Multivariable analysis showed significantly higher odds of infection in people living in urban districts. The findings provide insight into SARS-CoV-2 infection among school children, health workers, and people who attended markets in Zanzibar in the early stages of the pandemic. Exposure in these groups might have been influenced by infection and prevention strategies taken by the government, as well as shopping behavior, school overcrowding, and population density in urban settings. The study had methodological limitations, including cross-sectional design. Further, well-designed, longitudinal studies are recommended to understand exposure and transmission at a population level.

关键词： SARS-CoV-2 Seroprevalence Zanzibar ELISA COVID-19

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Ear Cholesteatoma Surgery in South Sahara: Our Experience in Bamako

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International Journal of Otolaryngology and Head & Neck Surgery 2024年第4期13卷 293-303页

作者： kassim Diarra Oumou Coulibaly Yaya Dembele Nfaly Konaté Sidibe Youssouf Saydi Ag Mohamed Harouna Sanogo Abraham Diarra Ibrahim Fofana Moussa Bourama Keita Youssouf Traore Fatogoma Issa Koné Boubacary Guindo Siaka Soumaoro Doumbia Kadidiatou Singare Mohamed Amadou Keita ORLCCF Department Gabriel Toure University Hospital Bamako Mali ORLCCF Unit Kati Army Polyclinics Kati Mali ENT-CCF Department CHU Luxembourg Bamako Mali ORLCCF Service of the Reference Center of Commune VI Sogoniko Bamako Mali

In Mali, cholesteatoma surgery remains a challenge due to the limited number of otological practitioners, and the low socio-economic level of patients reflecting the difficulties in performing CT or MRI for post-operative follow-up. We therefore initiated this work with the objective of analyzing, through a broad bibliographic review, the clinical, paraclinical, topographical, therapeutic and progressive aspects of a series of ear cholesteatoma. Materials and Method: This was a retrospective and prospective, descriptive study that took place in the ENT and head and neck surgery department of the Gabriel Touré University Hospital over 36 months from November 2020 to October 2023. These were patients admitted to the department for chronic cholestematous otitis media. Result: In total, we collected 34 files of patients admitted for cholesteatoma. This represented 9% of cases compared to all otological surgeries carried out during the same period, i.e. 362 cases. The average age of our patients was 35.31 years, with extremes ranging from 7 years to 80 years, there were 24 men and 10 women, i.e. a M/F ratio of 2.4. The average time to diagnosis was 7 years. The main functional signs were dominated by chronic fetid purulent otorrhea associated with hypoacusis in 94.6% of cases. One case of meningeal complication and three cases of cerebral empyema were reported. Clinically, a postero-superior and marginal tympanic perforation was observed in 53%, a retraction pocket in 5.9%, the sentinel polyp in 9%, and a non-marginal tympanic perforation in 32%. Pure-tone audiometry performed preoperatively for all patients showed conductive hearing loss in 83%. In 82% of cases we created a recess with the creation of a mini box. An ossiculoplasty was performed immediately with fragments of cartilage. The postoperative course found the disappearance of otorrhea (88.23%), the persistence of otorrhea in one case, two cases of facial paralysis, and one case of tinnitus. We did not identify

关键词： Cholesteatoma CT TTO TTF

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Ensembles of Deep Learning Framework for Stomach Abnormalities Classification

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Computers, Materials & Continua 2022年第3期70卷 4357-4372页

作者： Talha Saeed Chu Kiong Loo Muhammad Shahreeza Safiruz kassim Department of Artificial Intelligence Faculty of Computer Science and Information TechnologyUniversiti Malaya50603 Kuala LumpurMalaysia

Abnormalities of the gastrointestinal tract are widespread worldwide ***,an effective way to diagnose these life-threatening diseases is based on endoscopy,which comprises a vast number of ***,the main challenge in this area is that the process is time-consuming and fatiguing for a gastroenterologist to examine every image in the ***,this led to the rise of studies on designingAI-based systems to assist physicians in the *** several medical imaging tasks,deep learning methods,especially convolutional neural networks(CNNs),have contributed to the stateof-the-art outcomes,where the complicated nonlinear relation between target classes and data can be learned and not limit to hand-crafted *** the other hand,hyperparameters are commonly set manually,which may take a long time and leave the risk of non-optimal hyperparameters for *** effective tool for tuning optimal hyperparameters of deep CNNis Bayesian ***,due to the complexity of the CNN,the network can be regarded as a black-box model where the information stored within it is hard to ***,Explainable Artificial Intelligence(XAI)techniques are applied to overcome this issue by interpreting the decisions of the CNNs in such wise the physicians can *** play an essential role in real-time medical diagnosis,CNN-based models need to be accurate and interpretable,while the uncertainty must be ***,a novel method comprising of three phases is proposed to classify these life-threatening *** first,hyperparameter tuning is performed using Bayesian optimization for two state-of-the-art deep CNNs,and then Darknet53 and InceptionV3 features are extracted from these fine-tunned ***,XAI techniques are used to interpret which part of the images CNN takes for feature *** last,the features are fused,and uncertainties are handled by selecting entropybased *** experimental results show that the

关键词： Gastrointestinal tract deep learning Bayesian optimization hyperparameters explainable AI uncertainty handling feature fusion

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Emotion detection on webpages using biosensors integrated to a window-based dynamic control system

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International Journal of Intelligent Computing and Cybernetics 2022年第2期15卷 277-301页

作者： Fatima Isiaka Salihu Aish Abdulkarim kassim Mwitondi Zainab Adamu Computer Science Sheffield Hallam UniversitySheffieldUK Federal University Dutse DutseNigeria Computing Department Sheffield Hallam UniversitySheffieldUK Ahmadu Bello University ZariaNigeria

Purpose-Detecting emotion on user experience of web applications and browsing is important in many *** designers and developers find such approach quite useful in enhancing navigational features of webpages,and biomedical personnel regularly use computer simulations to monitor and control the behaviour of *** the other hand,law enforcement agents rely on human physiological functions to determine the likelihood of falsehood in *** often,online user experience is studied via tangible measures such as task completion time,surveys and comprehensive tests from which data attributes are *** of users’emotion and behaviour in some of these cases depends mostly on task completion time and number of clicks per given time ***,such approaches are generally subjective and rely heavily on distributional assumptions making the results prone to recording ***/methodology/approach-The authors propose a novel method-a window dynamic control system that addresses the foregoing *** data were obtained from laboratory experiments during which forty-four volunteers had their synchronised physiological readings,skin conductance response(SCR),skin temperature(ST),eye movement behaviour and users’activity attributes taken using *** windowbased dynamic control system(PHYCOB I)is integrated to the biosensor which collects secondary data attributes from these synchronised physiological readings and uses them for two *** both detection of optimal emotional responses and users’stress *** method’s novelty derives from its ability to integrate physiological readings and eye movement records to identify hidden correlates on a ***-Results show that the control system detects basic emotions and outperforms other conventional models in terms of both accuracy and reliability,when subjected to model comparison that is,the average recoverable natural structures for the three models with

关键词： Skin conductance response Skin temperature Eye tracker sensors Human physiological functions Online behaviour Dynamic control system

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Feasibility Study for a Hybrid Power Plant(PV-Wind-Diesel-Storage)Connected to the Electricity Grid

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Fluid Dynamics & Materials Processing 2022年第6期18卷 1607-1617页

作者： Fahad Maoulida kassim Mohamed Aboudou Djedjig Rabah Mohammed El-Ganaoui Laboratory LEMAFaculty of Sciences and TechniquesUniversity of ComorosMoroniComoros Laboratory LERMABIUT Henri Poincaréof LongwyUniversity of LorraineNancyFrance IREMIS Institute CUFRUniversity of MayotteDembeni MayotteFrance

In this work,we present a feasibility study for a new hybrid power plant(PV-Wind-Diesel-Storage)directly connected to the electrical *** simulations are performed to verify the performance of the hybrid system under different scenarios using real meteorological *** is shown that the performances of the hybrid system connected to the electrical network depend obviously on the available energy resources and constraints because the renewable energies are *** addition,the price of the kWh of electricity supplied by the hybrid system is determined,which amounts to$0.209/kWh,which is very cost effective and satisfactory for the considered sample conditions(Comoros Island).

关键词： Hybrid energy renewable energy HOMER connected grid

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