237 research outputs found

    Overheard at Gettysburg

    Full text link
    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.

    Get PDF
    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

    An Evaluation of Property Portfolio Diversification Strategies in Nigeria.

    Get PDF
    This paper identifies diversification strategies adopted in the Nigerian property market and evaluates the effectiveness of the strategies with a view to determining the benefits of each strategy to investors and also moves the profession in Nigeria forward towards meeting the global trends. This is against the background of greater unpredictability and volatility in the Nigeria property market and the increasing need for investors to diversify risk of their portfolios. Questionnaires backed up with interviews, were administered on 28 institutional property investors in Lagos, Abuja and Port-Harcourt metropolitan areas. Pooled data on rental transactions and capital values for the period of 1998 – 2003 involving 76 properties were also collected from the investors. Data were analysed with the use of frequency distribution, relative importance index, Sharpe’s Index and mean/standard deviation ratio. The study’s results showed that “property type” and “geographic naïve diversification” were the preferred strategies in the Nigerian property market and that these strategies did not give the best protection to investors’ portfolios against the risk situation in the market. The results of the evaluation revealed that the best strategy would be to adopt efficient portfolio strategy and invest better proportions of a real estate portfolio in residential properties located in Lagos metropolitan area

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

    Get PDF
    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

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

    Get PDF
    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

    Evaluating Diversification Strategi Direct Property Investment Portfo

    Get PDF
    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

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

    Get PDF
    <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

    Sero-prevalence and risk factors for cytomegalovirus infection among pregnant women in a teaching hospital in Ogun state, Nigeria

    Get PDF
    Background: Infection with cytomegalo virus is usually asymptomatic however in pregnant women the risk of congenital infection and foetal&nbsp; abnormalities makes antenatal screening for CMV infection necessary. The aim of this study was to determine the sero-prevalence and risk factors for&nbsp; CMV infection among pregnant women in Babcock University Teaching Hospital (BUTH), Ilishan Remo, Ogun State, Nigeria.Methods: The study was a cross-sectional descriptive study conducted between January and May, 2017 on patients attending the antenatal clinic of&nbsp; Babcock University Teaching Hospital. Enzyme Linked Immunosorbent Assay (ELISA) Kits were used to determine IgM and IgG anti CMV antibody titresinvenous blood samples obtained from study participants.Results: A total of 80 patients were recruited into the study. The mean age was 30 years.All (100%) respondents were sero-positive for anti CMV IgG&nbsp; antibodies while 28.75% of respondents were seropositive for anti CMV IgM antibodies.Conclusion: There was a highsero-prevalence rate of CMV infection in the study. Screening of pregnant women for CMV infection is necessary due to the&nbsp; risk of congenital infection and fetal defects

    Census politics in deeply divided societies

    Get PDF
    Population censuses in societies that are deeply divided along ethnic, religious or linguistic lines can be sensitive affairs – particularly where political settlements seek to maintain peace through the proportional sharing of power between groups. This brief sets out some key findings from a research project investigating the relationship between census politics and the design of political institutions in Bosnia and Herzegovina, Kenya, Lebanon and Northern Ireland

    Blackcurrants: A Nutrient-Rich Source for the Development of Functional Foods for Improved Athletic Performance

    Get PDF
    This is the final version. Available on open access from Taylor & Francis via the DOI in this recordBlackcurrants are nutrient-rich fruits with a significant amount of bioactive compounds including vitamin C and polyphenols, especially anthocyanins. The high phytochemical content of blackcurrants promotes this fruit to become a valuable functional food ingredient with varying health-promoting activities targeting different consumers including athletes. Athletes experience oxidative stress during intense exercise, which can result in inflammation and reduced exercise performance. Antioxidants such as vitamin C and polyphenols can restore the regular oxidative status of the body. Blackcurrant supplementation has shown potential ergogenic activity to improve athlete performance during high-intensity training. Clinical trials have evaluated the effectiveness of blackcurrant supplementation on exercise performance, fat oxidation, blood lactate levels, muscle fatigue, and cardiac output. Due to the rich nutritional value of blackcurrants, they can be a potential candidate for the development of functional foods targeted at the improved performance of athletes. Blackcurrants can be used as ingredients to develop functional beverages and snacks for athletes as well as gluten-free products for celiac athletes.Blackcurrant is rich in bioactive compounds that can help improve athletic performance. It can be considered a potential bioactive ingredient to develop functional foods for athletes
    • …
    corecore