Analysis of Vibration and Thermal of a Modeled Circuit Board of Automated External Defibrillator (AED) Medical Device

In this research, the AED was modeled with the Ansys 2020 workbench and calibrated based on static and dynamic loading to verify the static displacement with the first set of five frequencies obtained based on the un-prestressed conditions. With modification, using the prestressed analysis, the next set of frequencies obtained gives an improved result with 0.0003 percent error difference between each frequency. The modeled Circuit board was used to examine the vibration and dynamic analysis for the rigid board. Likewise, the thermal analysis was conducted on the modeled Circuit board with the heat source as the battery and the rate of dissipation of heat around the board and its effect on the circuit components.Comment: 7 page

THE MEDIATING EFFECT OF CONTEXTUAL CHARACTERISTICS ON COLLECTIVIST DYNAMICS AND ENTITY BASED CREATIVITY AMONG FACULTY IN HIGHER EDUCATION

This study examines the mediating effect of the entity based creativity on the interaction between complexity theory and creativity among faculty members in higher education organizations. The purpose of study was to investigate how mechanisms for intellectual productivity and creativity foster intellectual and disciplinary interactions among faculty members in higher education. The theoretical framework of complexity theory and KEYS model constructs were employed in order to examine how complexity dynamics, motivation, stimulants and inhibitors foster faculty creativity in higher education. The Partial Least Square of Structural Equation Model (PLS-SEM) was used to analyze data using the PLS algorithm, bootstrapping and predictive relevance (Q2 ) to assess the predictive accuracy on creativity among 73 tenure and tenure-track faculty members in south east research based university in the United States. The result showed that stimulant resource, inhibitors and stimulant new-thinking was identified as constructs with the strongest effect on creativity. The findings also reveal that indicator types like organizational impediments, psychological safety, organizational encouragement, freedom, organizational pressure, fun and novelty/ originality had the greatest impact on faculty creativity in higher education. These outcomes suggest implications for faculty members, research, policy, practice. Finding in this study is consistent with complexity theorists arguments that appropriate amounts of pressure encourages workers to seek creative solutions to challenges in an effort to control that pressure and the issues of trust, confidence and organizational encouragement are important in fostering creativity

The Act of Mass Production in Kelantan Traditional Pottery, Malaysia

The study of pottery artefact as been helpful in developing theories on the cultural development of societies that produced or acquired them. The traditional pottery of Kelantan as been known for its utility functions. Hence, this paper seeks to illuminate on the traditional pottery of Kelantan state in Malaysia. The paper investigates and reviewed the history of Malay pottery down to Kelantan pottery, and also analysed the techniques and processes used for mass production in Kelantan traditional pottery production. This was achieved by first visiting four traditional pottery centers in Kelantan. The places visited include; Mambong Pottery in Kampung Ulu Sungai, Zutah Ceramic in Ceribong, Kesdec Ceramics in Pulai Chondong and Belipot Ceramics in Bunut Payong. The outcome of the visit revealed how Kelantan potters use plaster to create prototypes using turning wheel and thereafter use it to generate master mould and case mould for mass production. Keywords: Act, Mass production, Kelantan Traditional Potter

Gender Influence on Student Teachers' Perceptions of the Constructs of Technolog-ical Pedagogical Content Knowledge (TPACK) in Nigerian Universities

Abstract: This study investigated whether gender influences the perceptions of TPACK constructs among male and female student teachers in public universities in north-central Nigeria. The study adopted the cross-sectional survey design carried out using the TPACK questionnaire across the study's sample. Sample selection for the study was based on a multi-stage sampling technique. Accordingly, a questionnaire was distributed to a sample of 529 male and female student teachers in their final year enrolled in three universities in Kwara State, Nigeria. They responded to the study tool that was accessed after the validity and reliability of the tool had been verified using Cronbach's Alpha. The data were analysed using statistical mean and Mann-Whitney U test. The findings revealed that gender differences in student teachers' perceptions of their Technological Knowledge (TK) and Technological Content Knowledge (TCK) favouring male respondents. However, the results showed no statistically significant differences between male and female student teachers in technological pedagogical knowledge (TPK) and technological pedagogical content knowledge (TPACK). The study's conclusions, recommendations, implications, and limitations are based on the research findings

Case study account of causes and legal implication of wrongful conviction

Innocent persons could become victims of wrongful conviction when courts erroneously enter guilty verdicts for offences which they factually did not commit. Factors which could lead to error in judgment could either be within or outside the control of judicial officers. For instance, different forms of ineptitude and misconduct by the police officers, prosecutors, defence attorneys and other criminal justice actors could lead to the court making wrong findings. Using a case study approach, this paper points out various instances where wrongful conviction has occurred due to confessional statements obtained by oppression, wrong application of forensic science, incompetent legal representation etc. The paper which sets out to demonstrate the causes and legal implication of wrongful convictions, contends that wrongful conviction contravenes the essential principle of criminal justice which is to the effect that persons should not be made liable for offences which they did not committed and that it is better for many accused persons to escape punishment than for one innocent person to be punished. The case study approach which involves the review of cases where wrongful convictions were widely held to have occurred is herein adopted. Based on the cases sourced from Nigeria and other countries herein examined, the study found that the factors identified as causes of this aberration of justice, include: misidentification of the suspect by eyewitness, confessional statement either voluntary or coerced, faulty expert opinion, incompetent defence counsel, faulty forensic analysis and so on. Key words: “Wrongful Conviction”, “Police Misconduct”, “Criminal Justice

The pore pressure, bulk density and lithology prediction

The pore and fracture pressures are the two most important parameters required for the effective well design. In general, the difference between the two parameters at any given depth dictates the drilling window with no consideration for wellbore stability. While pore pressure prediction from the drilling parameters started in the mid-nineties, very few improvements have been made in these areas when compared to other pore pressure prediction techniques such as seismic and well logs. Pore pressure prediction using the d-exponent method does not consider the effect of bit hydraulic energy on the rate of penetration (ROP). This limits the application of the d-exponent to mostly hard rock environments. Under downhole conditions where the bit hydraulic energy has a significant influence on the ROP (soft rock environments), the d-exponent method may produce inaccurate results. Hence, the primary goal of this research is to develop new pore pressure prediction models from the drilling parameters that incorporate the bit hydraulic energy, making them suitable for any subsurface drilling conditions. The new pore pressure prediction models use the concept of specific energy to predict the onset of overpressure. The concept of specific energy is then extended to the real-time identification of subsurface lithology. Furthermore, overburden pressure is an important input parameter in pore pressure prediction. Inaccurate prediction of overburden pressure may result in the erroneous prediction of pore pressure which can lead to well control and process safety incidents. In areas where density logs are not available, synthetically derived density logs are used for overburden pressure computations. In this research, an attempt is also made to improve the accuracy of pore pressure prediction by improving the accuracy of overburden pressure computation via improvement in density logs prediction. Finally, since pore and fracture pressures are closely related, an attempt is made to develop a new fracture pressure prediction model for the Niger Delta basin

Tax Administration System in Nigeria, A Review

Recently the revenue that accrues to state government is derived from two broad sources, viz: the external sources and the internal sources. The increasing cost of running government coupled with dwindling revenue has left various state governments in Nigeria with formulating strategies to improve the revenue base. More so, the near collapse of the national economy has created serious financial stress for all tiers of government. As a result of fall in the international price of oil and the collapse of the national economy, the direct allocation from federation account to the states has fallen. This research work examined the relationship between tax administration and revenue generation from the perspective of Nigerian internal revenue service. It also determined the impact of evasion and tax avoidance on the revenue generation in general. DOI: 10.7176/RJFA/13-22-05 Publication date: November 30th 202

OPTIMIZING THE USAGE OF RENEWABLE ENERGY FOR POWERING OFFSHORE OIL FIELDS

Carbon dioxide (CO2) emission due to power generation from fossil fuel is a major contributor to the current issues of global warming and climate change. This paper proposes offshore generation of electricity from renewables to supply offshore oil fields. An existing oil field in the UK North Sea was assumed and a hybrid power system consisting of power from wind, wave, and fossil fuel generators was dedicated to it. The feasible/economical reduction in CO2 emission was investigated by using Homer Pro software to model and simulate performance of the micro-grid. Data of the renewable resources are specific to the selected site. From the simulation results, a solution with the lowest net present cost (winning system) was chosen and compared with the base case system to observe how the hybrid system saves cost over the project lifetime. The winning system was refined as much as possible to develop the optimal system which was proposed for implementation. This system demonstrated its economics relative to the base case system as the annual fuel consumption and the corresponding CO2 emission dropped by 38% each. Likewise, the cost of energy fell by 42%. Imposition of carbon tax was recommended to boost the development of renewables

The Influence of Creativity Inhibitors and Collectivist Dynamics

This study examines the mediating influence of creativity inhibitors on collectivist dynamics and faculty creativity in higher education organizations. Complexity theory was employed to frame how collectivist dynamic (Complexity Interaction) and creativity inhibitor foster faculty creativity in higher education. The Partial Least Square of Structural Equation Model (PLS-SEM) was used to analyze data using the PLS algorithm, and mediating effect to assess the predictive accuracy on creativity among 73 tenure and tenure-track faculty members in a south east research-based university in the United States. The result showed that creativity inhibitors have positive influence on the interaction between complexity interaction (collectivist) and faculty creativity. Additionally, indicator-types like organizational impediments, psychological safety, organizational encouragement, freedom, organizational pressure, fun and novelty/ originality had the greatest impact on faculty creativity in higher education. These findings are consistent with the argument that appropriate amount of pressure encourages workers to seek creative solutions to challenges in an effort to control that pressur