Design and Construction of Redox Flow Battery using Liquid Extract from Morinda Lucida Leaves

The research is focused on the use of a liquid extract from morinda lucida leaves as electrolyte in the construction of a redox flow battery using fired clay pot as the separating medium. After the Soxhlet extraction, each of the liquid electrolyte was stored in a container for each half-cell, and the electrode was dipped into the electrolyte. For cell testing and charging, a wire was connected to the top of the electrodes. A 3V battery was used to charge the cell, a maximum discharge voltage of 1.31V and a maximum discharge current of 13mA were recorded from the battery testing results. Results showed that the liquid extract from morinda lucida leaves as a good conductor of electricity and a suitable electrolyte for a redox flow battery

Sustainable integrated solid waste management for a university campus − A case study of the Federal University of Technology Akure (FUTA), Nigeria

This study provides valuable insights into the waste composition, generation rates, and opportunities for improving the current solid management practices of a university campus in Sub-Saharan Africa. Representative points were selected within the campus to collect solid waste (SW). The SW were sampled following ASTM D5231-92. The quadrant method prescribed by ASTM D 6323 was used to reduce about 150 kg of collected waste to 50 kg. The SW samples were collected in triplicates and sorted manually to determine their composition. QGIS, a geographic information system was utilized to optimize waste collection efficiency, optimal collection points, and the number of waste bins. The average daily solid waste generation at FUTA was 952.3 kg, with polythene and paper waste constituting the largest proportions at 26 % and 24 %, respectively. The waste generation rate per capita was estimated at 0.046 kg per day. Remarkably, 81 % of the waste generated at FUTA has the potential for recycling. This offers a viable potential for promoting sustainable integrated solid waste management (SISWM). The study proposes optimising waste collection points from the initial 42 to 97, considering the proximity to buildings and transportation routes. The study did not consider fluctuations in waste generation rates and composition throughout the seasons, yet the data gathered is considered adequate for this initial survey. Lack of collaboration, adequate policies, funds, infrastructure, and political will are among the impediments to SISWM in FUTA. The introduction of colour-coded waste separation bins, and assigning different colours to specific waste types, can promote proper waste disposal and facilitate recycling. Also, engaging the university community through workshops and seminars can foster such behavioural change. Collaboration with local entrepreneurs and recycling centres is another essential aspect of this paradigm shift. Such partnerships can explore innovative solutions for upcycling polythene waste and create waste-to-wealth pathways. Initial challenges of an insufficient policy framework for university- small scale enterprises (SME) engagement and the lack of business growth models could be addressed by promoting relevant skill development and motivational tasking of the existing entrepreneurship faculty. By implementing the proposed strategies and embracing circular economy (CE) principles, FUTA can reduce its environmental impact, promote recycling, and foster a culture of sustainability and entrepreneurial value creation on campus and beyond

Allele Frequencies of Apolipoprotein E in a South Western Nigerian population on HAART

Objective: Increasing evidence has shown that ApoE polymorphism is associated with the early onset of cardiovascular and neurological diseases in patients on HAART. The frequency of occurrence of the alleles and the genotypes vary by race and population. The study describes the pattern seen among adults in Ibadan, Nigeria. Methods: This cross-sectional study was conducted among 124 randomly selected HIV-infected persons on protease inhibitor therapy who receive care at the adult antiretroviral clinic of the University College Hospital (UCH), Ibadan. DNA was extracted from leucocytes using EDTA blood. ApoE genotypes were determined using the Seeplex ApoE ACE genotyping kit. The epidemiological distribution of apoE is figured with a pie graph. Results: About four-fifth (79%) of the participants were females while about two-thirds (68%) were below 50 years of age.  The most frequently occurring allele was the ε3 allele (82.2%) and the most common ApoE genotype observed was ε3/ε3. This genotype was present in 52 (41.9%) of the participants. At least one allele of Apo ε2, Apo ε3, and Apo ε4 was present in 28(22.5%), 102 (82.2%), and 50 (40.3) of the study participants respectively. Homozygosity for Apo ε2 and Apo ε4 was observed in 4.8% and 8.0% of participants respectively. Conclusions: Allelic frequency seen is similar to that described in other studied populations and the frequency of genotypes observed was also similar to those described among world populations with a higher observation of ApoE4 allele as seen in people of African descent

Challenges in Analyzing K-3 Mathematics Data

The Kentucky Center for Mathematics (KCM) is a state supported entity charged with improving effective mathematics teaching and learning, involving early childhood through adulthood. The KCM primarily does this by facilitating professional learning experiences (PLE) for early grade teachers across the state of Kentucky. Early grade students are administered various math tests throughout the year (fall, winter, and spring). Some of the tests are Measure of Academic Progress (MAP) Test, Star Math Assessment, iReady Math Test, etc. Additionally, the KCM administers surveys to early grade teachers who participated in the PLE’s. The Burkardt Consulting Center (BCC) partners with KCM, applying statistical techniques to assess the effectiveness of KCM PLE’s. PLE effectiveness can be measured by looking at teacher satisfaction through surveys and student improvement through test scores. I am a senior majoring in Mathematics and Statistics. I aspire to be an actuary.Dr. Joseph Nolan Faculty Sponsor Dr. Mary Lee Glore Faculty Sponso

Detection of Phishing and Spam Emails Using Ensemble Technique

Most of the cyber breaches in the world today are done based on fraudulent activities. Phishers and Spammers come up with new and hybrid techniques all the time to circumvent the available software and techniques, which shows that all organizations are covered by unbroken threat. Among the approaches developed to stop email spam and phishing, filtering is a popular and important one. Common uses of email filters include organizing incoming emails and removal of spam, while phishing is detected by validating email body, URLs, etc. In this study, we proposed an ensemble approach for phishing and spam filter-based feature selection methods with the goal to lower the feature space dimensionality and increase the accuracy of spam and phishing review classification. We collected different public datasets and trained on Machine Learning (ML) based mRMR (Minimum Redundancy Maximum Relevance) models and Ensemble models. Experimental results with seven classifiers show an average of 83% accuracy which made the feature selector improves the performance of spam and phishing classifiers. And can legitimate future email cyber-attacks with a scope for future research and expansion