Overheard at Gettysburg

Monday. In Old TKE. A student of color is called in the hallway to hear the “funniest thing ever.” (giggling) “Night night little nigglet.” Tuesday. In an AFS class. “I’m pretty sure the majority of black students in my private school were there because of sports.” Wednesday. In Musselman. Woman: “I can’t believe Trayvon Martin got shot because someone thought skittles was a weapon.” Man: “To be honest, he did look suspicious because he was black.” [excerpt

Effects of Cooperative and Individualistic Instructional Strategies On Students Problem Solving Abilities In Secondary School Chemistry In Ilesa, Nigeria.

This study investigated the relative effectiveness of cooperative and individualistic instructional strategies on students' problem solving abilities in secondary school chemistry. It made use of a 3 x 3 x 2 quasi-experimental, non-randomized factorial design. Two hundred and fifty (250) Senior Secondary two (SS II) chemistry students were purposively sampled from three public secondary schools in Ilesa Local Government Area of Osun State, Nigeria. Two research instruments: Researcher's Instructional Packages for solving Chemistry Problems (RIP) and Chemistry Performance Test (CPT) were developed, validated and used for the study. The reliability of the Chemistry Performance Test (CPT) was determined and found to be 0.62 using the Pearson Product Moment Correlation formula. Five hypotheses were raised and tested using Analysis of Covariance (ANCOVA). Two experimental groups (Cooperative Instructional group, Individualistic Instructional group) and a control group were used. The results of the analysis showed that there was a significant difference in the performance of chemistry students exposed to cooperative instructional Strategy, individualistic instructional strategy and conventional teaching method. Both the cooperative instructional strategy and individualistic instructional strategy improved the performance of the learners. The cooperative instructional strategy was found to be most effective in enhancing better performance of the learners. African Research Review Vol. 1 (1) 2007: pp. 121-13

MOTIVATION AND ETHICS: CRITICAL FACTORS FOR SUSTAINABLE PUBLIC SERVICE DELIVERY IN NIGERIA

The primary function of any government is to ensure an equitable distribution of public goods and services to its citizens. Despite the material and human resource in Nigeria, Nigerians have been short-changed by the quality of public service delivery in the country. Against this backdrop, this paper: examined the issues affecting public service delivery and demonstrated how motivation can enhance ethical behaviours among public servants. Corruption Perception Index (CPI) from year 2000 to 2016 was used to argue the position of the paper. The study discovered, among other things that certain Human Resource (HR), political and institutional factors have led to the erosion of moral conduct by public servants. While measures such as reforms and campaigns have been taken to curb political and institutional issues, limited remedial actions have been proffered to tackle that of HR. These have negatively affected public service delivery in Nigeria. Therefore, apart from putting some ethical principles in place, there is need to motivate public servants to get at their best. In addition to this, good behaviour is to be rewarded and bad behaviour is to be punished across all public services in the country, by a truly independent and incorruptible statutory body. By doing this, sanity and equitable service delivery will be achieved.     &nbsp

Performance Evaluation of Ensemble Deep Learning Algorithms for Prediction of Pandemic Disease

For optimal healthcare management and counter-measures, it is essential to monitor and predict severe disease at the right time, before it becomes pandemic. In this research work, the most recent pandemic is considered as an example, as the viral coronavirus (COVID-19) prognosis is crucial to learn from. The severe COVID-19 threat has had a substantial influence on the global health security scene, forcing the creation of cutting-edge computer models to imorive monitoring, control, and mitigation measures. The research study aims to develop a generalized model assessing the healthcare parameters at a personalized and community dimensions and predicting the severity of the disease before becoming pandemic. To achieve this aim, this paper has systematically evaluated the outcomes of different experiments utilizing the ResNet, DenseNet, and ensemble models using a variety of performance criteria. The ensemble model consistently demonstrated superior performance across all metrics, exhibiting an accuracy and f1-score of 97%. In comparison, the DenseNet model earned an accurancy and f1-score of 93%, while the ResNet model earned an accurancy and f1-score of 88%. All models in this paper demonstrated promising accuracy and the potential to ain in COVID-19 prediction. Chest x-ray images were employed to experiment the computational models of accurately predicting the disease. Such experiment allows us to have a better understanding of the advantages and disadvantages of various computer models for predicting sever disease, which will help create more precise and effective prediction systems fr medical condition. The achieve result highlights the efficacy of ensemble techniques for exploiting the synergistic benefits of multiple models. The knowledge gained from this study aims to go beyond the theoretical sphere and expand its influence into the real world of hospital administration

Analytical methods used in estimating the prevalence of HIV/AIDS from demographic and cross-sectional surveys with missing data: a systematic review.

BACKGROUND: Sero- prevalence studies often have a problem of missing data. Few studies report the proportion of missing data and even fewer describe the methods used to adjust the results for missing data. The objective of this review was to determine the analytical methods used for analysis in HIV surveys with missing data. METHODS: We searched for population, demographic and cross-sectional surveys of HIV published from January 2000 to April 2018 in Pub Med/Medline, Web of Science core collection, Latin American and Caribbean Sciences Literature, Africa-Wide Information and Scopus, and by reviewing references of included articles. All potential abstracts were imported into Covidence and abstracts screened by two independent reviewers using pre-specified criteria. Disagreements were resolved through discussion. A piloted data extraction tool was used to extract data and assess the risk of bias of the eligible studies. Data were analysed through a quantitative approach; variables were presented and summarised using figures and tables. RESULTS: A total of 3426 citations where identified, 194 duplicates removed, 3232 screened and 69 full articles were obtained. Twenty-four studies were included. The response rate for an HIV test of the included studies ranged from 32 to 96% with the major reason for the missing data being refusal to consent for an HIV test. Complete case analysis was the primary method of analysis used, multiple imputations 11(46%) was the most advanced method used, followed by the Heckman's selection model 9(38%). Single Imputation and Instrumental variables method were used in only two studies each, with 13(54%) other different methods used in several studies. Forty-two percent of the studies applied more than two methods in the analysis, with a maximum of 4 methods per study. Only 6(25%) studies conducted a sensitivity analysis, while 11(46%) studies had a significant change of estimates after adjusting for missing data. CONCLUSION: Missing data in survey studies is still a problem in disease estimation. Our review outlined a number of methods that can be used to adjust for missing data on HIV studies; however, more information and awareness are needed to allow informed choices on which method to be applied for the estimates to be more reliable and representative

Perceived Service Quality of Architectural Consultancy Firms and Client Satisfaction in Building Projects in Nigeria

Purpose Clients in Nigeria have continuously questioned the quality of services being rendered by architectural firms in building projects. This study aims to investigate the areas of service responsible for determining client satisfaction. Design/methodology/approach The study uses questionnaire for data collection on perceived service quality and indicators of clients’ satisfaction. Findings The results of descriptive statistics suggest that efficient analysis and compliance with client brief along with buildability, flexibility and comprehensiveness of the design are the main technical determinants of clients’ satisfaction. Management measures for engendering clients’ satisfaction include team communication and collaboration as well as regular site visits when required. The study established a significant relationship between the perceived service quality and client satisfaction. At technical level, economical design and compliance with budget, buildability, optimal and error-free design and timely delivery have significant correlation with the perception of service quality, which could engender client satisfaction. At management level, collaboration and coordination, integrity and trust, regular site visits and project management knowledge and skills had significant relationships with perceived service quality. Originality/value To improve overall client satisfaction, architects are expected to focus on these factors in the process of service delivery. Architects’ expertise and skills can be further harnessed through continuous training and understanding of the project environment

Evaluating Diversification Strategi Direct Property Investment Portfo

Executive Summary. This paper evaluates diversification strategies adop direct property investments in the Nigerian property market. Annual hold returns were calculated from the data on rental transactions and capital v the 1998-2003 period. Under the assumption that investments are held lon constant correlation model or excess return to standard deviation represe covariance structure of assets’ returns, the findings revealed that property geographic naïve diversification strategies underperformed most of the eff portfolios constructed using constant correlation model. Most of the perfo results were found to be statistically significant at the 0.05 level. The resu that an efficient portfolio may not be more efficient than a naïvely diversif portfolio in all cases

Is foreign direct investment globalization‐induced or a myth? A tale of Africa

Foreign direct investment (FDI) provides many African countries an important source of capital inflow. Despite notable improvements in these capital-scarce countries' economic, political, and social conditions, foreign investors have not considered them viable host locations. Since FDI brings enormous spillovers to its host, some countries have recently institutionalized globalization as the catalyst for reversing the trend. Against this backdrop, we examine the FDI–globalization nexus across 47 African countries for the 1996–2016 period. Using the augmented mean group estimator, the results suggest that FDI in Africa is indeed globalization-induced. Moreover, we find this positive nexus to be driven by the economic dimension of globalization. Overall, we demonstrate the potential of globalization in stimulating an FDI boom in Africa

Utilization of insecticide treated nets during pregnancy among postpartum women in Ibadan, Nigeria: a cross-sectional study

<p>Abstract</p> <p>Background</p> <p>Pregnant women are susceptible to symptomatic malaria due to invasion of the placenta by plasmodium. Malaria increases the risk of adverse pregnancy outcomes for mothers, the foetuses and newborns. The effective use of Insecticide Treated Nets (ITNs) would be of benefit to these vulnerable women. Previous studies have focused on prenatal-women but this study sought to explore the actual trend of utilization of the proven strategy across all the pregnancy stages among postpartum women in Ibadan.</p> <p>Methods</p> <p>This cross-sectional survey utilized a validated structured questionnaire for data collection. A calculated sample of 335 postpartum women was proportionately recruited from three fee-paying facilities within Ibadan, Nigeria using a simple random sampling technique. These hospitals have high client flow for maternity cases and are known for provision of care under traditional ANC model. The data collected were analyzed using descriptive and inferential statistics by means of Statistical Package of Social Sciences (SPSS) version 15. The level of significance was set at = 0.05.</p> <p>Results</p> <p>The women's age ranged between 18 and 47 years, mean age was 29.4 ± 0.8 years. Various irregularities marked the traditional model of ANC provided at the settings and no exposure to preconception care. Also, 276 (82.4%) had heard of ITNs. Antenatal clinics formed the major source of information. Low utilization and compliance rates were observed. One hundred and twenty-seven (37.9%) of the women had high knowledge of Malaria in Pregnancy (MIP) but only 70 (20.9%) demonstrated positive attitude towards the use of ITNs. Participants' educational status, family types, employment and residential areas significantly influenced ITNs utilization.</p> <p>Conclusions</p> <p>The women knew and learned about ITNs from ANC visits. Majority of the women did not own ITNs because of lack of access to free distribution. The existing traditional model of ANC was marked by irregularities and none of the women was exposed to preconception care. In addition, negative attitude in spite of increased knowledge of MIP was observed among the women. Therefore, evaluation of free distribution of ITNs is recommended. Integration of focused ANC and preconception care are advocated to promote early access to health information.</p