Conference Papers

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Start date: 2022

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    Level of Occupational, BrickStress and Self-Efficacy on the Productivity of Blocklaying, Bricklaying and Concreting Teachers in Technical Colleges in North Central, Nigeria
    (Book of Proceedings of 10th International Conference of School of Science and Technology Education, Federal University of Technology, Minna, 2024) Tsado, E. G.; Igwe, C. O.; Saba, T. M.
    The study investigates the Level of pressure of occupational stress and self-efficacy on Blocklaying, Bricklaying and Concreting teachers (BBC) productivity in Technical Colleges in North Central, Nigeria. The study utilized quantitative method. The population of the study was 83 BBC teachers from Technical Colleges offering BBC subjects in the 6 North Central States and the Federal Capital Territory. Census sampling was carried out to select the entire 83 BBC teachers from the Technical Colleges in North Central States including the FCT. The study used a structured questionnaire of a 4-point Scale rating as the instrument of data collection validated by 3 research experts. Frequency distribution, mean and standard deviation were employed to analyze the individual responses of the respondents while regression analysis was used to determine the relationship between level of pressure of occupational stress and level of self-efficacy on teachers’ productivity of BBC teachers in Technical Colleges. The findings of the study revealed a coefficient of -0.3.46 of occupational stress and 0.260 of self-efficacy respectively indicating an inverse relationship between occupational stress and BBC teachers’ productivity and a positive relationship between selfefficacy and BBC teachers’ productivity. In addition, the study revealed that both occupational stress and self-efficacy have significant relationship with teachers’ productivity at 5°o level of parenthesis. The study however recommends that technical colleges should focus on implementing strategies that will effectively manage and reduce stress levels among teachers and focus on building teachers’ self-efficacy belief.
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    Thermal Comfort Performance of Thermoelectric Peltier Module Refrigeration System in Built Environment
    (School of Environmental Technology, Federal University of Technology Minna. PMB 65, Minna, Niger State Nigeria., 2024-11-29) Musa Titus Dada; Ejiga Anthony Ejiga
    According to data provided by the International Energy Agency, nearly 1.6 billion air conditioning (A/C) systems were operating globally in 2017, accounting for approximately 6% of the overall final energy consumption. To address the energy and economic challenges posed by such extensive use of air conditioning for thermal comfort, it is imperative to identify alternative solutions that can effectively operate in warm-humid environments. This study explored the thermal comfort performance of thermoelectric module refrigeration (TEMR) system in built environment; installed in a single-room facility in Minna, Niger State, Nigeria, over a one-month period. The experimental setup involved a test room measuring 1.3 m x 2.6 m x 3 m, equipped with aluminum roofing, an asbestos ceiling, an aluminum-framed window, and a steel door. The TEMR system was assessed for its ability to regulate indoor temperature and humidity under varying external climatic conditions. The TEMR system operated at a constant current of 6.4A, with data collected at specific intervals throughout each day. Results indicated that the TEMR system significantly reduced indoor air temperature and relative humidity, particularly during peak operational hours (12:00 pm to 2:00 pm). Weekly variations showed temperature drops from 37°C to 22°C and humidity reductions from 60% to 32% within 60 minutes of operation. These findings align with ASHRAE Standard 55-2017 for indoor environmental quality. The study concludes that the TEMR system is effective in improving indoor climatic conditions, offering a sustainable and energy-efficient cooling solution. Its performance, influenced by external climatic factors, demonstrates potential for broader application, particularly in developing regions where long- term, low-maintenance, and environmentally friendly cooling solutions are needed.
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    Resources Required for Wood Waste Management in Small and Medium Scale Enterprises in Niger State
    (Journal of Science, Technology, Mathematics and Education (JOSTMED), 2022) Nwankwo, F.C.; Okwori, R.O.; Mohammed, B.M.; Igwe, C.O.
    The study determined the resources for wood waste management for small and medium scale enterprises in Niger State. The study adopted a descriptive survey research design. The population of the study was 37 respondents drawn from 37 SMEs registered with Corporate Affairs Commission (CAC). No sampling was done because the population was manageable. The instrument for data collection was a structured questionnaire. The instrument was validated by three lecturers and the reliability coefficient of the instrument was 0.87 using Cronbach's Alpha. Data collected from the questionnaire were analyzed using Mean and t-test, t-test was used to test the Null Hypotheses at 0.05 level of significance. Decision regarding the null hypotheses was based on comparing the Sig. 2 Tailed value with the stated level of significance. The findings of the study revealed that human resources, material resources and economic resources are the needed resources for wood waste management. The study therefore, concluded that, these resources must be put in place by SMEs and the necessary stakeholders for an effective and sustainable wood waste management. Based on the findings, it was recommended that the resources identified in the study for waste collection, storage, recycling and utilization should be made available in Niger State by the government so as to maximize wood waste utilization and create wealth and jobs in the state and SMEs generating wood waste should explore the business dimension wood waste management, acquire the necessary resources so as to generate more revenue and create jobs.
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    Assessment of Compliance with Preliminary Environmental Investigations for Erecting Sustainable Building Structure in Abuja Metropolis, Nigeria
    (Journal of Sustainability and Environmental Management, 2022-05-26) M. B. Ibrahim; I. Dauda; C. O. Igwe; A. M. Hassan
    The continuous collapse of structures which is usually accompanied by great loss of lives and properties, the conscientious construction activities in the country has a direct or indirect impingement on the environment by displacing settlements, hampering farming activities and the destruction of beneficial plants. This pose threats to the continuous existence of man and the sustenance of natural vegetation. Based on the foregoing, the study was designed to assess compliance with preliminary environmental investigations for erecting sustainable building structures in Abuja Metropolis. Two research questions and two null hypotheses guided the study. The research was carried out in Abuja Metropolis Nigeria. Descriptive survey research design was used for the study. The targeted population for the study was 148 subjects comprising of 72 builders and 76 engineers. Since the population was manageable no sampling was done. A structured questionnaire was used for data collection. Cronbach’s alpha statistical tool was used to determine the internal consistency of the instrument and was found to be 0.80. Data collected for the study was analyzed using mean, standard deviation and z-test. Mean was used to analyze the research questions while z-test was used to test the hypotheses at 0.05 level of significance. The findings of the study revealed that builders and engineers are aware of all the necessary preliminary investigations that should be conducted before erecting building structures. The findings also showed that despite the fact that builders and engineers are aware of the necessary preliminary environmental investigations to be conducted before erecting building structures, they still fail to execute the investigations of the building which aren’t environmentally friendly. Based on the findings of the study, it is recommended that all the preliminary investigations identified in this study should be made a requirement for approving any building plans and construction and also government should enact laws to punish violators of preliminary investigations in Nigeria.
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    Modalities for Effective Operations of Regulatory Bodies Involved in Building Construction
    (Quest Journals, 2025-02) J. O. Alaezi J. O. Alaezi; J. J. Molwus J. J. Molwus; D. O. Adeagbo D. O. Adeagbo; Christopher Obeta Igwe PhD
    Regulatory bodies in the built environment backed by enabling registration Acts play a major role in regulating building construction practices in Nigeria. The paper was aimed at suggesting modalities for effective operations of regulatory bodies in the built environment. Two research objectives have been raised and 1 research hypothesis was raised to guide the study. The study made use of quantitative method of data collection to obtain data from respondents. 421 respondents participated in answering questions administered with a sample size of 382. Questions asked in the questionnaire were based on existing literature and questionnaires were administered on the respondents with the aid of research supports physically and electronically. Responses received through the questionnaire administered were retrieved and analysed. The descriptive research questionnaire was also subjected to validation by selected experienced building construction professionals for accuracy. Descriptive statistics such as simple percentages was used to analyse the breakdown of the questionnaire, the profile of the respondents, their discipline and gender. Data analysed using non-parametric method of data analysis (ranking and mean). The findings of the research revealed that; lack of effective legislation and bureaucracy served as the major barrier affecting the functions of regulatory bodies in the built environment. Updating regulatory standards, effective enforcement of codes and licensing is paramount to the functions of regulatory bodies involved in building construction. Based on the findings, it was recommended that; the Federal Government should make adequate budgetary provision for effective operations of regulatory bodies. Right legislation should be put in place for their operations. Regulatory bodies should not only focus on issuing licenses to building construction professionals but as a matter of priority get involved in updating regulatory standards and organising continuous professional development based on areas of core- competence to enhance knowledge base of professionals.
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    Mathematical model of measles transmission dynamics using real data from Nigeria
    (Informa UK Limited, 2022-05-25) Olumuyiwa James Peter; Mayowa M. Ojo; Ratchada Viriyapong; Festus Abiodun Oguntolu
    Measles is a highly contagious and life-threatening disease caused by a virus called morbillivirus, despite the availability of a safe and cost-effective vaccine, it remains a leading cause of death, especially in children. Measles spreads easily from person to person via infected people's coughs and sneezes. It can also be transmitted through direct contact with the mouth or contaminated surfaces. To have a better knowledge of measles epidemiology in Nigeria, we develop a deterministic mathematical model to study the transmission dynamics of the disease in the population. The boundary of the model solution is performed, both equilibrium points are calculated, and the basic reproduction number ℛ0 is determined. We have proved that when ℛ0<1, the disease-free equilibrium point is both locally and globally stable. When ℛ0>1, the endemic equilibrium point exists and is stable if it satisfies Routh–Hurwitz criteria. We demonstrate the model's effectiveness by using a real-life application of the disease spread in Nigeria. We fit the proposed model using available data from Nigeria Center for Disease Control (NCDC) from January to December 2020 to obtain the best fit, this help us to determine the accuracy of the proposed model's representation to the real-world data. We investigate the impact of vaccination rate and hospitalization of infected individuals on the dynamics of measles in the population. The result shows that the combined control strategies reduce the peak of infection faster than the single control strategy.
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    Mathematical model for the dynamics of COVID-19 Pandemic Incorporating Isolation and Non-Linear Recovery Rate
    (ISEP Porto-Portugal, 2024-06-22) N. I. Akinwande; T. T. Ashezua; S. A. Somma; O. N. Abdurrahman; F. A. Oguntolu; O. M. Adetutu; R. I. Gweryina; R. O. Olayiwola; T. P. Adajime; F. A. Kuta; S. Abdulrahman; A. I. Enagi; G. A. Bolarin; M. D. Shehua; A. Usman.
    COVID-19 has in recent times created a major health concern in both developed and developing parts of the world. In this wise, there is every need to theoretically explore ways that will provide some insights into curtailing the spread of the disease in the population. In this paper, we present a population model for COVID-19 pandemic incorporating isolation and nonlinear recovery rate. The reproduction number was obtained using the next generation method. The disease-free equilibrium (DFE) of the model (1) was found to be locally and globally asymptotically stable whenever the associated reproduction number is less than unity. Results from the sensitivity analysis of the model, using the reproduction number, RC show that the top parameters that largely drive the dynamics of COVID-19 in the population are COVID-19 transmission rate and the proportion of individuals progressing to the class of reported symptomatic infectious individuals. Numerical simulations of the model shows that increasing the recovery rate of infected patients in the population will lead to an initial decrease in the number of hospitalized patients before subsequent increase. The reason for this could be attributed to the number of unreported symptomatic infectious individuals who are progressing to reported symptomatic infectious stage of infection for immediate isolation.
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    Modeling and optimal control of monkeypox with cost-effective strategies
    (Springer Science and Business Media LLC, 2022-11-22) Olumuyiwa James Peter; Chinwendu E. Madubueze; Mayowa M. Ojo; Festus Abiodun Oguntolu; Tawakalt Abosede Ayoola
    In this work, we develop and analyze a deterministic mathematical model to investigate the dynamics of monkeypox. We examine the local and global stability of the basic model without control variables. The outcome demonstrates that when the reproduction number , the model’s disease-free equilibrium would be locally and globally asymptotically stable. We further analyze the effective control of monkeypox in a given population by formulating and analyzing an optimal control problem. We extend the basic model to include four control variables, namely preventive strategies for transmission from rodents to humans, prevention of infection from human to human, isolation of infected individuals, and treatment of isolated individuals. We established the necessary conditions for the existence of optimal control using Pontryagin’s maximal principle. To illustrate the impact of different control combinations on the spread of monkeypox, we use the fourth-order Runge–Kutta forward–backward sweep approach to simulate the optimality system. A cost-effectiveness study is conducted to educate the public about the most cost-effective method among various control combinations. The results suggest that, of all the combinations considered in this study, implementing preventive strategies for transmission from rodents to humans is the most economical and effective among all competing strategies.
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    Designing Recovery: Women and Midwives’ Perspectives on Design Factors in The Postnatal Hospital Environment
    (International Journal of Architecture, Arts and Applications, 2025-06) Lawal, Lateef Ademola
    Background: The postnatal phase is a critical time for women to rest and to recover after giving birth, and the hospital environment can influence the wellbeing experiences of new mothers. Existing research found aspects of the physical environments that are supportive of women during labour and birth, but research focusing on the environmental factors in postnatal environments, where women recover after birth, is limited and important. Purpose: The study investigated environmental factors and spatial features in postnatal environments that make an impact on women’s physical recovery and wellbeing following birth. Methods: Data were collected through online survey questionnaires from 229 postnatal women who gave birth in New Zealand hospitals and from 58 midwives (N = 287) who worked in postnatal settings. Midwives recruited women and their colleagues using a snowball sampling method and provided dedicated links to women and midwives to access the online survey questionnaires. Midwives filled out identical questionnaires as women; the only difference was data related to their demographic characteristics. Descriptive statistics and the independent-samples t-test were used to analyse the data. Results: Women’s and midwives’ have strong preferences for single-occupancy rooms, visual or physical connection to the outdoors, and views of nature, all of which were ranked significantly high, indicating both women and midwives desire personal control in the space, as well as connections to the outside during postnatal hospitalisation. The study participants also indicated a strong preference for air quality and room freshness, adequate daylight in the room, art and nature images and the presence of colours in the interior spaces. These design features were thought to be critical design elements for promoting rest, recovery and psychological wellbeing in postnatal settings. Conclusions: The results of this study highlight the importance of several key environmental design features, providing beneficial insights into women’s psychological recovery and wellbeing and suggesting the need for awareness by architects, and healthcare providers for creating restorative postnatal healthcare settings for women following birth.