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Occupational exposure to flour dust among bakery workers:prevalence,potential hazards and promising interventions

Toxicology Advances 2023年第4期5卷 33-44页

作者： Seyi-Samson Enitan Osareniro-Eguagie Osakue Esther-Ngozi Adejumo Temitope-Oyewole Olusanya emmanuel-olusegun ileoma Comfort-Bosede Enitan Nwachi-Idume Ogbonna Department of Medical Laboratory Science Babcock University Ilishan-RemoOgun state 121103Nigeria Department of Chemical Pathology Babcock University Teaching HospitalIlishan-RemoOgun state 121103Nigeria Department of Education Medical Laboratory Science Council of NigeriaFCT-Abuja 900110Nigeria

Occupational exposure to flour dust within bakery environments presents significant health hazards to bakery *** dust,generated as a byproduct during baking,becomes airborne during the baking process,thus constituting a respiratory *** health consequences include respiratory diseases,skin irritation,allergic reactions,and potential long-term health *** indicates that a broad segment of bakery workers encounters exposure to flour dust,with specific subgroups,such as bakers and dough mixers,being particularly *** factors to this exposure encompass insufficient ventilation and a lack of *** is vital to assess exposure levels through air quality monitoring and health *** interventions encompass engineering solutions(e.g.,ventilation systems,dust extraction),administrative measures(including training and the use of personal protective equipment),and the implementation of occupational health and safety *** efforts with healthcare professionals and regulatory authorities are paramount for achieving *** studies underscore the effectiveness of such interventions,resulting in improved worker health,thus underscoring the advantages of protective *** in this endeavor include industry resistance to change,financial considerations,and issues related to *** recommendations entail further research,policy enhancements,and the involvement of industry stakeholders and labor unions in advocating for worker safety.

关键词： flour dust bakery workers occupational exposure interventions health hazards

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CA-KSE: a combinatorial algorithm for benchmarking in knowledge sharing environment

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International Journal of Intelligent Computing and Cybernetics 2019年第1期12卷 2-22页

作者： Femi emmanuel Ayo olusegun Folorunso Sakinat Oluwabukonla Folorunso Department of Computer Science Federal University of AgricultureAbeokutaNigeria Department of Physical and Computer Sciences McPherson UniversitySeriki SotayoNigeria Department of Computer Science College of Physical SciencesFederal University of AgricultureAbeokutaNigeria Department of Mathematical Sciences Olabisi Onabanjo UniversityAgo IwoyeNigeria

Purpose–Over the past decade,the cost of product development has increased drastically,and this is due to the inability of most enterprises to locate suitable and optimal collaborators for knowledge ***,knowledge sharing is a mechanism that helps people find the best collaborators with relevant ***,a new approach for locating optimal collaborators with relevant knowledge is needed,which couldhelp enterprisein reducingcost andtime ina *** aimsto discuss these ***/methodology/approach–One unique challenge in the domain of knowledge sharing is that collaborators do not possess the same number of events resident in the knowledge available for *** this paper,the authors present a new approach for locating optimal collaborators in knowledge-sharing environment using the combinatorial algorithm(CA-KSE).Findings–The proposed pattern-matching approach implemented in Java is considered efficient for solving the issue peculiar to collaboration in knowledge-sharing *** authors benchmarked the proposed approach with its semi-global pairwise alignment and global alignment counterparts through scores comparison and the receiver operating characteristic *** results obtained from the comparisons showedthat CA-KSEis a perfect test havinganarea undercurveof 0.9659,comparedto the other *** limitations/implications–The paper has proposed an efficient algorithm,which is considered better than related methods,for matching several collaborators(more than two)in KS *** method could be deployed in medical field for gene analysis,software organizations for distributed development and academics for knowledge ***/value–One sign of strength of this approach,compared to most sequence alignment approaches that can only match two collaborators at a time,is that it can match several collaborators at a faster rate.

关键词： Combinatorial algorithm Knowledge sharing(KS) Collaborators Pattern matching,Benchmark score

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Hate speech detection in Twitter using hybrid embeddings and improved cuckoo search-based neural networks

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International Journal of Intelligent Computing and Cybernetics 2020年第4期13卷 485-525页

作者： Femi emmanuel Ayo olusegun Folorunso Friday Thomas Ibharalu Idowu Ademola Osinuga Computer Science College of Natural and Applied SciencesMcPherson UniversitySeriki SotayoNigeria Computer Science College of Natural SciencesFederal University of Agriculture AbeokutaAbeokutaNigeria Computer Science Federal University of Agriculture AbeokutaAbeokutaNigeria Mathematics Federal University of Agriculture AbeokutaAbeokutaNigeria

Purpose-Hate speech is an expression of intense *** has become a popular analytical tool for the prediction and monitoring of abusive *** speech detection with social media data has witnessed special research attention in recent studies,hence,the need to design a generic metadata architecture and efficient feature extraction technique to enhance hate speech ***/methodology/approach-This study proposes a hybrid embeddings enhanced with a topic inference method and an improved cuckoo search neural network for hate speech detection in Twitter *** proposed method uses a hybrid embeddings technique that includes Term Frequency-Inverse Document Frequency(TF-IDF)for word-level feature extraction and Long Short Term Memory(LSTM)which is a variant of recurrent neural networks architecture for sentence-level feature *** extracted features from the hybrid embeddings then serve as input into the improved cuckoo search neural network for the prediction of a tweet as hate speech,offensive language or ***-The proposed method showed better results when tested on the collected Twitter datasets compared to other related *** order to validate the performances of the proposed method,t-test and post hoc multiple comparisons were used to compare the significance and means of the proposed method with other related methods for hate speech ***,Paired Sample t-Test was also conducted to validate the performances of the proposed method with other related *** limitations/implications-Finally,the evaluation results showed that the proposed method outperforms other related methods with mean F1-score of ***/value-The main novelty of this study is the use of an automatic topic spotting measure based on na€ıve Bayes model to improve features representation.

关键词： Twitter Hate speech detection Embeddings Cuckoo search Neural networks

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Institutional Capacity and the Roles of Key Actors in Fire Disaster Risk Reduction: The Case of Ibadan, Nigeria

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International Journal of Disaster Risk Science 2022年第5期13卷 716-728页

作者： olusegun Joseph Falola Samuel Babatunde Agbola Department of Urban and Regional Planning Lead City UniversityIbadan 200255Oyo StateNigeria Department of Urban and Regional Planning University of IbadanIbadan 200284Oyo StateNigeria

Inefficient and ineffective fire management practices are common to most urban areas of developing *** cities are typical examples of high vulnerability and low preparedness level for fire *** study examined the institutional framework for fire disaster risk reduction(FDRR) and explored the roles of key actors in fire disaster preparedness in Ibadan,a large traditional city in *** study was anchored on the concept of urban governance.A case study research design was adopted using primary and secondary *** data were obtained through field observation aided by a structured checklist and key informant *** were conducted on key officials of the major organs for FDRR-Oyo State Fire Service(OSFS) and Oyo State Emergency Management Agency(OYSEMA).The study identified a disjointed and fragmented approach to fire *** relating to fire risk reduction and disaster recovery were domiciled under the OYSEMA,while emergency response to fire disasters was the prerogative of the *** results show that only five out of 11 local government areas had public fire stations;only three fire stations had an on-site water supply;three fire stations lacked firefighting vehicles;and distribution of fire stations and facilities was *** fire stations responded to 80% of all fire cases in 12 *** study concluded that the institutional structure and resources for fire risk reduction was more empowered to respond to fire disaster,rather than facilitating preparedness capacity to reduce disaster risk.

关键词： Disaster preparedness Disaster risk Fire disaster Fire service Fire station

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Analysis of the impact of treatments on HIV/AIDS and Tuberculosis co-infected population under random perturbations

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Infectious Disease Modelling 2024年第1期9卷 27-55页

作者： olusegun Michael Otunuga Department of Mathematics Augusta University112015th StGE 1028AugustaGA 30912USA

In this work, we study the impact of treatments at different stages of Human Immunodeficiency Virus (HIV) and Tuberculosis (TB) co-infection in a population under the influence of random perturbations. This is achieved by constructing a stochastic epidemic model describing the transmission and treatment of the diseases. The model is created with the assumption that transmission rates fluctuate rapidly compared to the evolution of the untreated diseases. The basic reproduction numbers corresponding to the population with HIV infection only (with n stages of infections and treatments), the population with tuberculosis infection only, and the overall population with co-infection (with n stages of infection/treatments) are derived in the presence and absence of noise perturbations. These are used to discuss the long term behavior of the population around a disease-free equilibrium and an endemic equilibrium, and to analyze the effect of noise and treatments on the system. We also showed conditions under which TB infected population dynamic undergoes backward bifurcation and give conditions for disease eradication in the entire population. Analysis shows that small perturbations to the disease-free equilibrium can initially grow under certain conditions, and the introduction of TB treatment is effective in eliminating the co-infection. Numerical simulations are presented for validation of our results using published parameters.

关键词： Stochastic model HIV/AIDS Tuberculosis Treatment Global stability Reproduction number

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A Novel Insertion Solution for the Travelling Salesman Problem

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Computers, Materials & Continua 2024年第4期79卷 1581-1597页

作者： emmanuel Oluwatobi Asani Aderemi Elisha Okeyinka Sunday Adeola Ajagbe Ayodele Ariyo Adebiyi Roseline Oluwaseun Ogundokun Temitope Samson Adekunle Pragasen Mudali Matthew olusegun Adigun Department of Computer Science Landmark UniversityOmu Aran251103Nigeria SDG 11 Group Landmark UniversityOmu Aran251103Nigeria Department of Computing MiVA UniversityAbuja900211Nigeria Department of Computer Science Ibrahim Badamasi Babangida UniversityLapai911101Nigeria Department of Computer Science University of ZululandKwadlangezwa3886South Africa Department of Computer&Industrial Production Engineering First Technical UniversityIbadan200243Nigeria Department of Multimedia Engineering Kaunas University of TechnologyKaunasLT-44249Lithuania Department of Computer Science Colorado State UniversityFort Collins80523USA

The studypresents theHalfMax InsertionHeuristic (HMIH) as a novel approach to solving theTravelling SalesmanProblem (TSP). The goal is to outperform existing techniques such as the Farthest Insertion Heuristic (FIH) andNearest Neighbour Heuristic (NNH). The paper discusses the limitations of current construction tour heuristics,focusing particularly on the significant margin of error in FIH. It then proposes HMIH as an alternative thatminimizes the increase in tour distance and includes more nodes. HMIH improves tour quality by starting withan initial tour consisting of a ‘minimum’ polygon and iteratively adding nodes using our novel Half Max *** paper thoroughly examines and compares HMIH with FIH and NNH via rigorous testing on standard TSPbenchmarks. The results indicate that HMIH consistently delivers superior performance, particularly with respectto tour cost and computational efficiency. HMIH’s tours were sometimes 16% shorter than those generated by FIHand NNH, showcasing its potential and value as a novel benchmark for TSP solutions. The study used statisticalmethods, including Friedman’s Non-parametric Test, to validate the performance of HMIH over FIH and *** guarantees that the identified advantages are statistically significant and consistent in various situations. Thiscomprehensive analysis emphasizes the reliability and efficiency of the heuristic, making a compelling case for itsuse in solving TSP issues. The research shows that, in general, HMIH fared better than FIH in all cases studied,except for a few instances (pr439, eil51, and eil101) where FIH either performed equally or slightly better thanHMIH. HMIH’s efficiency is shown by its improvements in error percentage (δ) and goodness values (g) comparedto FIH and NNH. In the att48 instance, HMIH had an error rate of 6.3%, whereas FIH had 14.6% and NNH had20.9%, indicating that HMIH was closer to the optimal solution. HMIH consistently showed superior performanceacross many benchmarks,

关键词： Nearest neighbour heuristic farthest insertion heuristic half max insertion heuristic tour construction travelling salesman problem

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Status of brominated flame retardants,polychlorinated biphenyls,and polycyclic aromatic hydrocarbons in air and indoor dust in AFRICA:A review

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Emerging Contaminants 2020年第1期6卷 405-420页

作者： Olumide emmanuel Akinrinade William Stubbings Mohamed Abou-Elwafa Abdallah olusegun Ayejuyo Rose Alani Stuart Harrad School of Geography Earthand Environmental SciencesUniversity of BirminghamBirminghamB152TTUK Department of Chemistry University of LagosLagosNigeria

While many African countries are signatories of the United Nations’Environment Programme(UNEP)Stockholm Convention aimed at eradication or reduction of persistent organic pollutants(POPs)in the environment,many such countries have limited financial and technical capacities to either combat the effects of POPs or effect their removal from the *** those chemicals listed as POPs under the Stockholm Convention are polychlorinated biphenyls(PCBs),polybrominated diphenyl ethers(PBDEs),and hexabromocyclododecane(HBCDD).Also of concern are polycyclic aromatic hydrocarbons(PAH),which are listed under the UN Economic Commission for Europe(UN-ECE)’s protocol on long range transboundary air pollution(LRTAP).This review examines the state of knowledge pertaining to concentration levels and trends of these contaminants in air(both indoor and outdoor)and indoor dust in *** there being no known manufacture of PBDEs or HBCDD in Africa,concentrations in air of these contaminants in Africa are comparable to those in continents where the chemicals were initially produced and known to be widely *** data were available to discern any temporal trend in concentrations of the target ***,the evidence highlights sources of PCBs,PBDEs,and HBCDD in Africa to include obsolete electrical and electronic equipment and informal handling and treatment of electronic *** concentrations of PAHs in air and in indoor dust are *** of PAHs in indoor dust can be significantly influenced by outdoor sources,particularly vehicular emissions leading to higher concentrations in urban *** the current and projected increase in African urbanisation and demand for consumer goods,there is substantial potential for concentrations of PBDEs,HBCDD,PCBs,and PAHs to rise in the near *** is therefore a need for long-term monitoring of concentrations of these chemicals in air and indoor dust at a range of locations acros

关键词： POPs PBDEs HBCDD PCBs PAHs

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Cocos nucifera *** as green corrosion inhibitor for acid corrosion of aluminium in HCl solution

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Chinese Chemical Letters 2010年第12期21卷 1449-1452页

作者： olusegun K.Abiola Y.Tobun Department of Chemistry Federal University of Petroleum ResourcesEffurunNigeria Department of Chemistry University of LagosAkokaLagosNigeria

The ability of Cocos nucifera ***（CW） as non-toxic corrosion inhibitor for acid corrosion of aluminium in 0.5 mol/L HCl has been studied using chemical *** shows significant inhibition as corrosion inhibitor,with 93%efficiency at the highest concentration of the *** inhibitive action is attributed to the adsorption of the inhibitor molecules on metal surface following Langmuir adsorption isotherm.

关键词： Cocos nucifera L. water Acid inhibition Green inhibitor Aluminium Weight loss

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Meaning construction in Nigerian multilingual hip hop:a study in sociology of music

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Language and Semiotic Studies 2024年第1期10卷 83-105页

作者： olusegun Fariudeen Liadi Sociology Fountain UniversityOsogboNigeria

The wide acceptability of Nigerian hip hop music,home and abroad,indicates increasing value of the inclusion of local popular languages in the composition and performance of the *** the text of many of the award winning singles and albums are mixtures of different languages ranging from English,Pidgin English,Yoruba,Igbo and other local *** on Ferdinand de Saussure’s theory of structuralism,this study examines meaning construction in hip hop music in *** focusing on the Nigerian hip hop artists,who adopt different slangs embedded with codes considered absurd within the mainstream cultural milieu,the study closely investigates constructed meanings in the lyrics of four Nigerian award winning hip hop *** the artists adopted multilingual codes-switching from one language to another in presentation of their *** codes in the songs generally symbolise and present messages or meaning that appears out of the mainstream cultural *** and artistes meet at the level of *** article argues that Nigerian artists creatively present a sub-culture where they and their fans can relate through codes and words embedded with symbolic meanings shared by both artists and fans.

关键词： Saussure meaning construction multilingual hip hop Nigerian music semiotics

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Vaccine breakthrough and rebound infections modeling:Analysis for the United States and the ten *** regions

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Infectious Disease Modelling 2023年第3期8卷 717-741页

作者： olusegun Michael Otunuga Alexandra Yu Department of Mathematics Augusta University112015th StrGE 2018AugustaGA30912USA

A vaccine breakthrough infection and a rebound infection cases of COVID-19 are studied and analyzed for the ten *** of Health and Human Services(HHS)regions and the United States as a nation in this *** innovative multi-strain susceptible-vacci-nated-exposed-asymptomatic-symptomatic-recovered(SVEAIR)epidemic model is devel-oped for this purpose for a population assumed to be susceptible to n-different variants of the disease,and those who are vaccinated and recovered from a specific strain k(kn)of the disease are immune to present strain and its predecessors j=1,2,…,k,but can still be infected by newer emerging strains j=k+1,k+2,…,*** model is used to estimate epidemiological parameters,namely,the latent and infectious periods,the transmission rates,vaccination rates,recovery rates for each of the Delta B.1.617.2,Omicron B.1.1.529,and lineages BA.2,BA.2.12.1,BA.4,BA.5,BA.1.1,BA.4.6,and BA.5.2.6 for the United States and for each of the ten HHS *** transmission rate is estimated for both the asymptomatic and symptomatic *** effect of vaccines on each strain is *** that guarantees existence of an endemic with certain number of strains is derived and used to describe the endemic state of the population.

关键词： Multi-strain Delta Omicron Lineages Vaccine breakthrough Rebound infection

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