Problem-based learning: enhancing students learning of building information modelling

Building Information Modelling (BIM) is an innovative collaborative process underpinned by digital technologies introduced to improve project performance in the Architecture, Engineering and Construction (AEC) industry. Growth in industry demands has necessitated BIM inclusion into the Higher Education (HE) curricula as both a pedagogic and practical objective to prepare and develop aspiring Built Environment (BE) professionals with the required competence for contemporary practice. However, comprehension of BIM concepts and developing the skill set required for its application can be overwhelming for students and crucial to mitigating this challenge is the adoption of appropriate learner-centred strategies. Problem-based Learning (PBL) is becoming a widespread strategy to address such concern. This paper evaluates the impact of PBL strategy on students accelerated learning of BIM based on a case study of an undergraduate BIM module. Findings from the study show PBL benefits on students’ knowledge acquisition (cognitive and affective) of BIM concept and development of transferable skills (academic and disciplinary) equipping them with capabilities to become BIM competent and workplace ready for the AEC industry

BIM for deconstruction: an interpretive structural model of factors influencing implementation.

Transitioning from demolition to deconstruction practices for end-of-life performances is gaining increasing attention following the need for the construction industry to minimise construction and demolition waste. Building information modelling (BIM) presents an opportunity for sustainable deconstruction. However, the notion of BIM for deconstruction (BIMfD) is still in its infancy in the United Kingdom. Although a few studies on BIMfD are evident, a focus on identifying the underlying factors necessary for successful implementation of BIMfD is lacking. The purpose of this study was to identify and analyse the underlying factors necessary for BIMfD implementation in the UK construction industry. It employed a four-stage research design. The reviewed literature explored extant views on BIM implementation factors to identify an initial list of possible factors influencing BIMfD implementation. Subsequently, a mix of questionnaire, focus group discussions and structured interviews were employed at various stages to refine and contextualise 15 factors necessary for BIMfD implementation in the UK construction industry. The contextual interrelationships among the factors were evaluated using interpretive structured modelling (ISM). This evaluation culminated in a BIMfD implementation factor model. The findings identified BIMfD experts, responsiveness of business models to innovative practices and industry’s acceptance to embrace change as the principal factors influencing BIMfD implementation in the UK. The implications of the findings attest that BIMfD experts and advisors must champion the adoption and implementation of BIMfD in the UK and business models need to become more responsive to accommodate BIMfD innovative practices. A BIMfD framework was conceptualised. Even though the BIMfD framework was designed from the UK perspective, the global construction industry can leverage the outcomes of this study. This paper, therefore, brings to the fore, a hierarchical BIMfD implementation factor model to support improved deconstruction practices in the construction industry

The Impact of Crop Production on the Economic Growth of Nigeria

Purpose: This study uses time series data ranging from 1981 to 2021 to analyze the impact of crop production on the gross domestic product (GDP) in the Nigerian economy. The study adopted ordinary least square techniques for the regression analysis. Approach/Methodology/Design: The variables of the study were subjected to unit root tests and were found to be stationary at first difference. Johansen co-integration was adopted and the result posits a short-run relation between the variables of interest (GDP, crop production (CP) as well as labor output (LO). Findings: The result from the error correction model shows that crop production has a positive and significant impact on economic growth in Nigeria. This study also finds that labor productivity has a positive and significant impact on economic growth. The study concluded that crop production has a positive and statistically significant impact on economic growth in Nigeria for the period under review.   Originality/value: The study recommends that there is a need to improve the mode of production. This could imply having an optimal mix of labor and capital-intensive means of production in crop production to boost economic output

Bio-Efficacy of Insecticide-Treated Bednets (ITNs) Distributed through the Healthcare Facilities in a Boundary Community in Nigeria

This study was conducted to evaluate the susceptibility and efficacy of three insecticidal treated bednets; Olyset®, PermaNet2.0® and MAGNet® collected from the different health facilities, against Anopheles mosquitoes under laboratory conditions. PermaNet3.0 was used as a positive control. Larval collections were carried out and reared at the insectary of National Arbovirus and Vector Research Centre, Enugu State. Anopheles Kisumu mosquitoes were used as the standard control in the cone bioassay test. The bioassay showed that the wild An. gambiae s.l. and An. gambiae Kisumu strains were susceptible (100% mortality) to the PermaNet3.0® used as positive control while the wild-caught Anopheles were resistant to the mono-treated ITNs. The mortality effect of the net brands showed that the brands have a statistically significant effect on the mosquito mortality after 24 hours F (2, 18) = 14.32, p < .001), while the sides of the net did not have a statistically significant effect on the mosquito mortality (F (3, 18) = 1.67, p = .209). This study also suggests the need to develop and adopt routine monitoring of the ITNs at the health facilities, as it will inform the replacement of ineffective nets. However, a mass campaign of PBO nets is necessary for the state to achieve and maintain the universal coverage of ITNs

Adoption of Bio-fortified Pro-Vitamin-A Cassava and Health Outcome of Farming Households in Abia and Anambra States Nigeria

This study examined the relationship between the adoption of bio-fortified pro-vitamin-A cassava varieties and farming households’ health outcomes using cross sectional data obtained from 318 cassava farmers in southeast Nigeria. The data was analysed using binary logistic regression, propensity score matching of treatment effects and percentages. The study found that number of children under five, household size, education of head of household, extension service, ownership of television, radio, mobile phone and tricycle, membership of cooperative societies, and access to credit were the significant predictors of adoption of pro-vitamin-A bio-fortified cassava varieties in the States. The study also found that the main constraints militating against adoption of pro-vitamin-A bio-fortified cassava include decaying of roots immediately after maturation, high cost of cassava stem, and high moisture content. The estimate of the effect of the adoption of bio-fortified pro-vitamin-A cassava varieties on incidence of vitamin-A deficiency related diseases was significant with an average treatment effect on the adopters of -0.463. The adoption of bio-fortified pro-vitamin-A cassava varieties has substantial effect on the reduction of vitamin-A deficiency related health outcomes. There is need for wider awareness and dissemination of the varieties among cassava farmers, while interventions should target the promotion of both production and consumption of such cassava varieties

Adoption of Bio-fortified Pro-Vitamin-A Cassava and Health Outcome of Farming Households in Abia and Anambra States Nigeria

This study examined the relationship between the adoption of bio-fortified pro-vitamin-A cassava varieties and farming households’ health outcomes using cross sectional data obtained from 318 cassava farmers in southeast Nigeria. The data was analysed using binary logistic regression, propensity score matching of treatment effects and percentages. The study found that number of children under five, household size, education of head of household, extension service, ownership of television, radio, mobile phone and tricycle, membership of cooperative societies, and access to credit were the significant predictors of adoption of pro-vitamin-A bio-fortified cassava varieties in the States. The study also found that the main constraints militating against adoption of pro-vitamin-A bio-fortified cassava include decaying of roots immediately after maturation, high cost of cassava stem, and high moisture content. The estimate of the effect of the adoption of bio-fortified pro-vitamin-A cassava varieties on incidence of vitamin-A deficiency related diseases was significant with an average treatment effect on the adopters of -0.463. The adoption of bio-fortified pro-vitamin-A cassava varieties has substantial effect on the reduction of vitamin-A deficiency related health outcomes. There is need for wider awareness and dissemination of the varieties among cassava farmers, while interventions should target the promotion of both production and consumption of such cassava varieties

Adoption of Bio-fortified Pro-Vitamin-A Cassava and Health Outcome of Farming Households in Abia and Anambra States Nigeria

This study examined the relationship between the adoption of bio-fortified pro-vitamin-A cassava varieties and farming households’ health outcomes using cross sectional data obtained from 318 cassava farmers in southeast Nigeria. The data was analysed using binary logistic regression, propensity score matching of treatment effects and percentages. The study found that number of children under five, household size, education of head of household, extension service, ownership of television, radio, mobile phone and tricycle, membership of cooperative societies, and access to credit were the significant predictors of adoption of pro-vitamin-A bio-fortified cassava varieties in the States. The study also found that the main constraints militating against adoption of pro-vitamin-A bio-fortified cassava include decaying of roots immediately after maturation, high cost of cassava stem, and high moisture content. The estimate of the effect of the adoption of bio-fortified pro-vitamin-A cassava varieties on incidence of vitamin-A deficiency related diseases was significant with an average treatment effect on the adopters of -0.463. The adoption of bio-fortified pro-vitamin-A cassava varieties has substantial effect on the reduction of vitamin-A deficiency related health outcomes. There is need for wider awareness and dissemination of the varieties among cassava farmers, while interventions should target the promotion of both production and consumption of such cassava varieties

Global investments in pandemic preparedness and COVID-19: development assistance and domestic spending on health between 1990 and 2026

Background The COVID-19 pandemic highlighted gaps in health surveillance systems, disease prevention, and treatment globally. Among the many factors that might have led to these gaps is the issue of the financing of national health systems, especially in low-income and middle-income countries (LMICs), as well as a robust global system for pandemic preparedness. We aimed to provide a comparative assessment of global health spending at the onset of the pandemic; characterise the amount of development assistance for pandemic preparedness and response disbursed in the first 2 years of the COVID-19 pandemic; and examine expectations for future health spending and put into context the expected need for investment in pandemic preparedness. Methods In this analysis of global health spending between 1990 and 2021, and prediction from 2021 to 2026, we estimated four sources of health spending: development assistance for health (DAH), government spending, out-of-pocket spending, and prepaid private spending across 204 countries and territories. We used the Organisation for Economic Co-operation and Development (OECD)'s Creditor Reporting System (CRS) and the WHO Global Health Expenditure Database (GHED) to estimate spending. We estimated development assistance for general health, COVID-19 response, and pandemic preparedness and response using a keyword search. Health spending estimates were combined with estimates of resources needed for pandemic prevention and preparedness to analyse future health spending patterns, relative to need. Findings In 2019, at the onset of the COVID-19 pandemic, US$9·2 trillion (95$7·3 trillion (95% UI 7·2–7·4) in 2019; 293·7 times the $24·8 billion (95$43·1 billion in development assistance was provided to maintain or improve health. The pandemic led to an unprecedented increase in development assistance targeted towards health; in 2020 and 2021, $1·8 billion in DAH contributions was provided towards pandemic preparedness in LMICs, and$37·8 billion was provided for the health-related COVID-19 response. Although the support for pandemic preparedness is 12·2% of the recommended target by the High-Level Independent Panel (HLIP), the support provided for the health-related COVID-19 response is 252·2% of the recommended target. Additionally, projected spending estimates suggest that between 2022 and 2026, governments in 17 (95% UI 11–21) of the 137 LMICs will observe an increase in national government health spending equivalent to an addition of 1% of GDP, as recommended by the HLIP. Interpretation There was an unprecedented scale-up in DAH in 2020 and 2021. We have a unique opportunity at this time to sustain funding for crucial global health functions, including pandemic preparedness. However, historical patterns of underfunding of pandemic preparedness suggest that deliberate effort must be made to ensure funding is maintained

Social media and the Covid-19 pandemic: Observations from Nigeria

Social Media is an invaluable means of disseminating information to the citizenry; hence it is a powerful tool of propaganda. In lieu of the Nigerian situation, it acts as a two-edged sword as it allows citizens to be privy to information without impediments. However, this same tool has been used to misinform the populace and to circulate unverifiable and deceptive messages to citizens. As regards this, the basic question becomes: what are the advantages and disadvantages of the roles of social media in misinforming the general public about pandemics such as Covid-19? This qualitative study would explore social media outlets such as Facebook, Twitter, WhatsApp, blogs, online newspapers, and YouTube where the contestations about the pandemic are most pronounced. Considering that these are the major mainstream forums used by the populace outside the World Health Organisations (WHO), Nigeria Centre for Disease Control (NCDC) and State institutions, the most pervasive messages from these forums have been selected for analysis. The paper therefore interrogates the roles which social media play in either curtailing or aiding the spread of the news on the pandemic across the country. The paper concludes that the significance of Social Media outlets cannot be overemphasized with recourse to information dissemination. It also purports that these platforms have been abused as people hide under its anonymity to spread fake messages and instigate panic amongst members of the general public

Delay of Surgery Start Time: Experience in a Nigerian Teaching Hospital

Background:&nbsp;Operating room delay has multiple negative effects on the patients, surgical team, and the hospital system. Maximum utilization of the operating room requires on-time knife on the skin and efficient turnover. Knowledge of the reasons for the delay will form a basis toward proffering solutions.&nbsp;Patients and Methods:&nbsp;This was a prospective study of all consecutive elective cases done over a 15-month period from January 2016 to March 2017. Using our departmental protocol that “knife on skin” for the first elective case should be 8.00am, the delay was defined as a surgery starting later than 8.00am for the first cases while the interval between the cases of &gt;30 min for the knife on the skin was used for subsequent cases. Reasons for delay in all cases of delay were documented. The prevalence and causes of the delays were analyzed.&nbsp;P&nbsp;&lt; 0.05 was considered statistically significant.&nbsp;Results:&nbsp;Of 1178 surgeries performed during the period of study, 1170 (99.3%) of cases were delayed. The mean delay time was 151 min for all cases. First on the list had a longer delay time than others; 198.9 min versus 108.5 min (P&nbsp;= 0.000). Delay in the first cases accounted for 47.5% of all delayed cases. Overall, patient-related factor was the most common cause of delay (31.3%) followed in descending order by surgeon-related factor (28.5%) and hospital-related factor (26.2%). Patient-related factors accounted for 43.2% of first-case delays.&nbsp;Conclusion:&nbsp;Delays encountered in this study were multifactorial and are preventable. Efforts should be directed at these different causes of delay in the theater to mitigate these delays and improve productivity