Placement of Distributed Generation for Improvement of Voltage Profile in Distribution System

Distributed Generation is an approach that employs small-scale technologies to produce electricity close to the end users of power.When total system load is more than its generation capacity that makes relieving of load on the feeders not possible and hence voltage profile of the system will not be improved to the required level. In order to meet required level of load demand, DG units are integrated in distribution network to improve voltage profile, to provide more reliable and less uninterrupted power supply. Voltage stability is an important problem in the emerging world of technologies and development, the main objectives in operating an electric power system is to maintain a proper voltage level thought DG. Voltage Stability Index method is to be used for determining DG placement candidates. A Voltage Stability Index method is to be executed on the system and the bus with a minimum voltage at the collapse point is defined as the most sensitive bus to voltage collapse. This bus is to be selected as a candidate for DG placement

Voting System and Electoral Malpractices in Nigeria: A Case Study of the Fourth Republic of Nigeria

This paper examines the effect of voting system and electoral malpractices in Nigeria with the fourth republic as the case study (1999 - 2023). In carrying out this work, two theories will be used: game theory will be used as the first context in the area of study, to explain reasons for why electoral malpractices is inherent in Nigeria voting system while the theory of E-Democracy will be used as the way forward for electoral malpractices and violence in Nigerian voting system. Game theory is a theoretical framework used in the explanation of many phenomena in political science, politics, economics, psychology etc, and game theory is simply a systematic study of strategic interactions among rational individuals. A popular example of game theory in politics is the sum zero game, the sum zero has to do with which one player winning all and others losing all. In the context of election in Nigeria with reference to “to first win the post” as the dominant type of electoral system in Nigeria, two things are usually involved which is; the winner wins all and the looser loses all, as the result of this, political actors device all forms of strategy to win an election in the political actors often take advantage of the lapses inherent in the traditional paper voting system in Nigeria to advance their interest. This is through rigging, electoral violence, ballot box stuffing, falsification of electoral result multiple voting etc. the exercise of franchise is the fulcrum on which democracy revolves. Unfortunately, anti-democratic practices such as underage voting, snatching of ballot boxes, denial of voting rights to qualified physically challenges and deliberate falsification of vote figures to favour a particular candidate have greatly bastardized the democratic procedure. This scenario has simply placed a question on the Nigerian democracy. Keywords:Elections, Electoral Process, Independent National Electoral Commission (INEC), E-voting (Electoral Voting), Electoral Malpractices, E-democracy theory. DOI: 10.7176/PPAR/13-4-04 Publication date:May 31st 2023

Mathematical Literacy of Students in First Year of Medical School at a South African University

The literature pertaining to the definition of Mathematical Literacy (particularly in the Tertiary context) is briefly reviewed. A Mathematical Literacy questionnaire, designed in accordance with this definition, was administered to students entering the MBChB Program at a South African university in 2003. In general the level of Mathematical Literacy of Medical students is higher than that of entry-level Humanities students, and comparable with that of Science students doing Earth or Biological sciences. The response to the results of this testing, in terms of curriculum interventions in the first year of MBChB, are outlined and their degree of success is evaluated. The post-testing of the MBChB students indicated a statistically significant increase in the Mathematical Literacy of these students

Tuberculous Infection of Thyroid Gland: A Case Report

Introduction. Tuberculosis is one of the leading causes of morbidity and mortality and almost one-third of the world is infected with this disease. Tuberculosis has been reported in many parts of the human body. But thyroid gland involvement is extremely rare and its true incidence is unknown. Case Presentation. We present the case of a 26-year-old woman who presented with a thyroid cyst which turned out to be a primary mycobacterium tuberculosis infection. Conclusion. The correct diagnosis of thyroid tuberculosis is important because of the availability of medical treatment and the limited role of surgery

Control as an instrument of effective education management in six selected secondary schools in the Brits district (North West Province)

The essence of this study is to investigate the significance of control as an essential and effective instrument of education management, to examine in detail the concept of management control, to identify the role of educators and other stakeholders in education, gather and analyse data in order to examine the influence of proper control in effective education management and to present suggestions and recommendations for the implementation of control in order to effect good education management. Furthermore, it is hoped that this research will provide the school managers with the knowledge and skills required to: • understand the significance of human resource management; • identify the problems of new staff members; • design and implement an induction programme for new teachers; and • understand the purposes of staff development and develop appraiser skills. In conclusion recommendations regarding control as an essential instrument of effective education management for South African schools are presented.Educational Leadership and ManagementM. Ed. (Educational Management

3D View Prediction Models of the Dorsal Visual Stream

Deep neural network representations align well with brain activity in the ventral visual stream. However, the primate visual system has a distinct dorsal processing stream with different functional properties. To test if a model trained to perceive 3D scene geometry aligns better with neural responses in dorsal visual areas, we trained a self-supervised geometry-aware recurrent neural network (GRNN) to predict novel camera views using a 3D feature memory. We compared GRNN to self-supervised baseline models that have been shown to align well with ventral regions using the large-scale fMRI Natural Scenes Dataset (NSD). We found that while the baseline models accounted better for ventral brain regions, GRNN accounted for a greater proportion of variance in dorsal brain regions. Our findings demonstrate the potential for using task-relevant models to probe representational differences across visual streams.Comment: 2023 Conference on Cognitive Computational Neuroscienc

Effect of intra-arrest trans-nasal evaporative cooling in out-of-hospital cardiac arrest: a pooled individual participant data analysis

Randomized trials have shown that trans-nasal evaporative cooling initiated during CPR (i.e. intra-arrest) effectively lower core body temperature in out-of-hospital cardiac arrest patients. However, these trials may have been underpowered to detect significant differences in neurologic outcome, especially in patients with initial shockable rhythm.Peer reviewe

Characterization of the interaction of Aha1 with components of the Hsp90 chaperone machine and client proteins

AbstractThe activator of Hsp90 ATPase, Aha1, is an Hsp90 co-chaperone that has been suggested to act as a general stimulator of Hsp90 function. In this report, we have characterized the interaction of Aha1 with Hsp90 and its co-chaperones in rabbit reticulocyte lysate (RRL) and in HeLa cell extracts. Complexes formed by Aha1 with Hsp90 in RRL were stabilized by molybdate and contained the co-chaperones FKBP52 and p23/Sba1, but lacked HOP/Sti1 and Cdc37. Aha1 complexes isolated from HeLa cell extracts also contained Hsp70 and DNAJA1. Over-expression of Aha1 has been reported to stimulate the activity of v-Src and steroid hormone receptors ectopically expressed in yeast, however, no interaction between Aha1 and nascent v-Src or the progesterone receptor could be detected in RRL. Contrary to expectations, over-expression of Aha1 also inhibited the rate of Hsp90-dependent refolding of denatured luciferase. A number of potential client proteins that specifically associated with Aha1 were identified by liquid chromatography/ tandem mass spectrometry (LC–MS/MS) and verified by Western blotting. The proteins identified suggest that Aha1 may play roles in modulating RNA splicing and DNA repair, in addition to other cellular processes