Psycho-Social Determinants Of Gender Prejudice In Science, Technology, Engineering And Mathematics

This work focused on the “Psycho-social Determinants of Gender Prejudice in Science, Technology, Engineering and Mathematics (STEM)”. The females were found to be underrepresented in STEM fields. The under-representation results from gender stereotype, differences in spatial skills, hierarchical and territorial segregations and discrimination on job allocation. Social-psychological interventions, role models and self affirmation were examined as strategies for increasing women representation in STEM fields (unbalancing the imbalance in gender representation in STEM). Key words: Gender Imbalance, Gender Prejudice, Bias or Disparity and Gender Stereotypes

Diagnostic methods of frequency response analysis for power transformer winding a review

Abstract: Monitoring and diagnosis of power transformers in power systems have been investigated and discussed for the past decades. Earlier detect power transformer winding failures is recommended for both manufacturing process and also for power system operators. One of the most powerful and accurate tool for sufficient winding deformation detection is considered Frequency Response Analysis (FRA) among other diagnostic methods. In this paper a review of diagnostic methods of FRA for power transformer winding are presented. Different methods of transformer winding diagnosis, with their benefits and drawbacks where investigated. Moreover, possible windings failures, diagnostic methods of FRA in Off-line and On-line power transformers, detailed advantages and disadvantages of two major types of FRA are presented. The paper was able to show that some uncertainties have not been eliminated completely

Evaluation of the Financial Performance of Banks In A Deregulated Banking Environment: A Focal Study Of First Bank Of Nigeria PLC.

This study was undertaken basically to evaluate the financial performance of banks in a deregulated banking environment using an ordinary Least Square (OLS) method of regression analysis to analyze the results of First bank of Nigeria plc. The data set for this research constitutes an annual time series data spanning from 2001 – 2010. The selection of this timing was informed by the era of bank consolidation in Nigeria and from the fact that the banking sector has already been liberalized even before this period. The objective of this research is to find out the effect of the nominal lending rate, the exchange rate and the credit volume on banks financial performances in terms of their profitability. The data sources were mainly from a ten year financial summary of First bank of Nigeria Plc and CBN Statistical Bulletin, various years. The empirical evidence of the study revealed that the nominal lending rate and credit volume impacted positively to the profit of first bank Nigerian Plc, while the Exchange rate showed a negative significance. In summary, it was garnered that the variables employed are statistically significant as over 98 percent of them were explained at the long run. The researcher, therefore, submits that greater policy sensitivity towards the creation of credits and regulation of exchange rate volatility is urgently needed so that enough funds will be made available for potential investors in the Nigerian banking system. Key words: Deregulation, Financial performances, Banking environment, Exchange rate, Nominal Lending rate, Credit Volume

Evaluation of Content and Chapter Summaries of Approved Basic Science Textbooks in Ebonyi State Junior Secondary Schools in Nigeria

This study evaluated the topical coverage and chapter summaries of 12 (twelve) approved basic science textbooks in Ebonyi State junior secondary schools. The study was carried out in Ebonyi State of Nigeria. Two research questions and one hypothesis guided the study. Evaluation research design was adopted. One instrument was used, A 5-point quantitative approach for content evaluation of science textbooks (QACEST). QACEST formula was used to answer research questions while the null hypothesis was tested using chi-square test of goodness of fit. The result revealed among others; STAN basic science project, spectrum basic science, basic science for upper basic all had adequate topical coverage while basic science for Nigerian junior secondary school had topical coverage inadequate. The study also identified that chapter summaries of 9 basic science textbooks out of twelve (12) basic science textbooks evaluated are inadequate. The remaining four (4) basic science textbooks do not have chapter summaries at all. Based on the findings, the study recommended that all basic science textbooks use for teaching students need to be periodically revised with the view to make them to have acceptable content validity and enrich them in terms of content and chapter summary. That authors and publishers of any basic science textbooks should consult basic science core-curriculum in order to draw topics, objectives, contents and activities from the core-curriculum. Keywords: Basic Science, Topical Coverage, Chapter Summary, Evaluation Research, QACEST

Accounting for Social Capital: A Panacea for Project Sustainability in Ebonyi State

The study titled Accounting for Social Capital: a Panacea for Project sustainability in Ebonyi State seeks to determine whether stakeholders participation in project decision processes impact significantly on projects sustainability, determine the extent of stakeholders participation in selecting public projects in Ebonyi State. . The researcher employed the use of Statistical Programming for the Social Sciences (SPSS) package 17.0 version in the analysis. The statistical techniques for the data collected varied in accordance with the nature of research questions and hypotheses. Tables were designed in line with the responses of the respondents to generate relevant data necessary to answer the research questions. The Spearman’s correlation coefficient was used to test the two hypotheses as postulated. The result revealed that community participation impact significantly on projects sustainability, that stakeholders participation in selecting public projects in Ebonyi State is low. The implication of these finding is that public projects will continue to be unsustainable until the ingredients of social capital becomes very effective in the State. Key words= Social Capital, Project sustainability, Participation,, Stakeholders, Public

Effect of Globe Game on Students Interest and Achievement in Longitude and Latitude

This study was designed to determine the effect of globe game on students' interest and achievement in longitude and latitude. Three research questions and three null hypotheses were formulated. Design for the study was a quasi-experimental non-equivalent control group's pre-test and post-test design. The sample for this study comprised of Two hundred and eighty four S S11 students. Six secondary schools were drawn through a stratified random sampling technique. Three schools (one male, one female and one co-educational) were assigned to the treatment group while the remaining three schools were assigned to the control group. The treatment group was taught longitude and latitude using the globe game approach while the control group was taught longitude and latitude using the conventional method. Longitude and Latitude Achievement Test was used to collect data on the achievement of students, the Longitude and Latitude Interest Scale was also used to collect data on interest of students in longitude and latitude. Research questions were answered using mean and standard deviation while hypotheses were tested using the Analysis of co-variance (ANCOVA) at an alpha level of 0.05. The result revealed that globe game approach is superior to the conventional method in facilitating interest and achievement but no significant interaction between gender and instructional method. The researchers therefore, recommended that globe game approach should be used in secondary school system. Keywords: Globe Game, longitude and attitude. DOI: 10.7176/JEP/10-23-06 Publication date: August 31st 201

Impact of Sustainable Social Reporting on Community - Business Relations in South - South Communities of Nigeria

This study basically sought to identify the extent to which sustainable social reporting of oil companies’ impact on community-business relations in Niger-Delta part of Nigeria. The study adopted a cross-sectional survey research design and a sample of 104 respondents representing various stakeholders in the affected communities. Hypotheses were formulated in line with the research objectives and research questions and were tested using Spearman correlation statistical tool via Statistical Package for Social Sciences (SPSS) software. The significant findings of the study is that sustainable reporting  of the oil companies in the area of  community  projects impact significantly on  community-business relations. The study also revealed that sustainability accounting affect the level of profitability of the companies in Nigeria. The implication of findings is that community- business relations are enhanced through effective reporting of commitments of companies in improving social infrastructure in the communities. This will not only promote healthy relationship between the principal place of location of the companies but will promote the level of profitability of the companies. Keywords:--Sustainability, Social Reporting, Community, South-South Nigeria, Relations

Sustainable Social Reporting and Community- Business Relations in South- South Communities of Nigeria

This study basically sought to identify the extent to which sustainable social reporting of oil companies’ impact on community-business relations in Niger-Delta part of Nigeria. The study adopted a cross-sectional survey research design and a sample of 104 respondents representing various stakeholders in the affected communities. Hypotheses were formulated in line with the research objectives and research questions and were tested using Spearman correlation statistical tool via Statistical Package for Social Sciences (SPSS) software. The significant findings of the study is that sustainable reporting  of the oil companies in the area of  community  projects impact significantly on  community-business relations. The study also revealed that sustainability accounting affect the level of profitability of the companies in Nigeria. The implication of findings is that community- business relations are enhanced through effective reporting of commitments of companies in improving social infrastructure in the communities. This will not only promote healthy relationship between the principal place of location of the companies but will promote the level of profitability of the companies. Keywords:--Sustainability accounting, Social Reporting, Community, South-South Nigeria, Relations

Dynamic model and control of power converters for grid connected renewable energy systems

Abstract: In order to investigate certain dynamic events of a grid connected renewable energy system (RES), a systematic model and control is developed. The RES with its converter is taken as a controlled dc current source and the grid side converter model is based on approximate power balance of the dc-link and the ac-side. Here an AC-side decoupled current controller in dq reference frame and simplified net dc-bus voltage controllers are implied. Among different dynamic events that is studied, the response of the system during three-phase to ground fault, step change in reference DC voltage, active and reactive power change are studied and presented

Stability improvement of a HVDC transmission link bewteen weak AC systems by Multi-terminal scheme

Abstract High Voltage Direct Current (HVDC) schemes are becoming a more attractive solution as they have been used extensively in interconnected weak power AC systems. But, the problem of voltage stability for weak AC systems interconnected by a DC link is critical especially during islanding conditions. The approach to improve more on the stability of such system would be to device a means of injecting locally controlled dc power on the dc-link transmission corridor forming a radial multi-terminal HVDC. However, continuous injection of DC power on the dc line of the VSC HVDC link though will increase the power transfer capability of the system but should have a limit otherwise it will lead to instability of the system. In this paper, a detailed VSC HVDC model and a simple analytical technique using the principle of uniform loading to determine penetration limit is presented. The techniques is applied to our case study and validated with a simulation result. Critical contingencies such as sudden island conditions, threephase to ground fault are simulated with and without DC power penetration. Results show the stability support on the AC side networks by DC power injection on the dc-link