Enhancing the Performance of Heart Disease Prediction from Collecting Cleveland Heart Dataset using Bayesian Network

Cardiovascular diseases are diseases affecting the general well-being of the heart. It is responsible for many deaths annually. Consequently, this paper focuses on improving the performance of heart disease prediction by collecting Cleveland heart datasets from the University of California Irvine machine learning repository. Different feature subset selection is performed on the dataset and modeled using machine learning models such as logistic regression, K-Nearest neighbor, Naïve Bayes and Bayesian Network. The proposed method achieved an accuracy of 88.53%. Based on the results obtained, we observed feature reduction on the Cleveland dataset could enhance the performance of the Bayesian network

Assessing the performance of global solar radiation empirical equations in Sokoto, Nigeria using meteorological parameters

In this study, the meteorological parameters measured in Sokoto (12.55o N, 5.15o E) for a period of 10 years (2005- 2014) were obtained from the Nigerian Meteorological Agency Sultan Abubakar III International Airport, Sokoto state. The data used include Gunn-Bellani solar radiation, sunshine hour duration, maximum and minimum temperatures, which were analyzed using modified Angstrom models to estimate the monthly mean global solar radiation in Sokoto. Four statistical methods have been used in order to evaluate the results namely; Mean Bias Error (MBE), Mean Percentage Error (MPE), Root Mean Square Error (RMSE) and T-statistic. The standard error (SE) and coefficient of determination (R2) were also obtained for each model. Based on the result obtained models 4 & 5 gave a lower RMSE, and R2 approaches unity, which indicates that there is a good agreement between measured and estimated global solar radiation.Keywords: coefficient of determination, solar radiation, sunshine hours, meteorological parameters, temperatur

Phytochemical Screening and Antimicrobial Activity of Leaves and Fruits Extract of Ficus sycomorus

The leaves and fruits of Ficus sycomorus were collected, air dried and grounded. Each of the samples (100g) was extracted with 400ml each of n-hexane, chloroform, ethyl acetate, and methanol sequentially, using Soxhlet extraction technique. They were labeled as FS1-1 to FS1-4 for leaves extract and FS2-1 to FS2-4 for fruit extract. Each of these fractions was phytochemically screened to investigate the presence of certain class of secondary metabolites. The extracts obtained were subjected to brine shrimp larvae test and antimicrobial bioassay. Some of the fractions were found to be active against the brine shrimp larvae and the tested organisms, with FS1-1 being the most active.Keywords: Antimicrobial, Cytotoxicity, Ficus sycomorus, Phytochemicals

Utilization of Wastes as an Alternative Energy Source for Sustainable Development: A REVIEW

Generally, the greater the economic prosperity and the higher percentage of urban population, the greater the amount of solid waste produced. Reduction in the volume and mass of solid waste is a crucial issue especially in the light of limited availability of final disposal sites in many parts of the world. To meet the rising demand for energy and to address environmental concerns, a conversion from conventional energy systems to renewable resources is essential. For the sustainability of human civilization, an environmentally techno – economically feasible waste treatment method is very important to treat waste. Several technologies are available for converting solid waste to energy source, ranging from very simple systems of disposing of waste to more complex technologies capable of dealing with large amounts of industrial waste. There are three main pathways for conversion of waste material to energy: thermochemical, biochemical and physicochemical conversion. Therefore, this paper examines how waste can be utilized to produce energy for sustainable development with adequate use of science and technology. It is recommended that, awareness campaign should be carried out to enlighten the general populace on the benefit of utilizing waste to energy source.Keywords: Waste, sustainable development, utilisation, energy source

A rare case of giant malignant phyllodes tumour and long term survival

Phyllodes tumours are rare breast neoplasm. Its clinical spectrum ranges from a benign and locally recurrent form of behaviour to malignant and metastatic forms. The age at risk is between 35 and 45 years. Giant phyllodes tumours are larger than 10cm in diameter. Case Report: Herewith, we present a rare case of giant malignant phyllodes tumour (40x30x20cm) in a young lady who survived 10 years post- treatment in which most literature reported 10-year survival of 23% to 42%. The patient had mastectomy and radiotherapy to the anterior chest wall. Conclusion: A young lady with a giant malignant phyllodes tumour survived 10 years following treatment

Audit of Radiology Request Cards in a Tertiary Hospital in NorthWest Nigeria

  Background: Radiology request cards are essential communication tools between physicians and  radiation personnel. Clinical audit is part of quality assurance that guarantees patient care. Objective:  To assess the adequacy of patient data and clinical information filled in request cards sent to Radiology Department of our facility by referring clinicians. Material and methods: Four hundred (400) radiology request cards were randomly selected from the records of the department and scrutinized for bio-data/clinical information. Result: Completely filled request cards were 2/267 (ultrasound), 1/40 (computed tomography) and  2/93 (conventional x-ray).  Conclusion: Consistency in complete filliing of radiology request cards in our facility was lacking. The audit revealed actual practice, and the need for improvement.    &nbsp

Pengaruh Kualitas Produk dan Gaya Hidup Terhadap Keputusan Pembelian iPhone melalui Minat Beli Sebagai Variabel Intervening

This study aims to determine the effect of product quality and lifestyle on purchasing decisions for iPhone smartphones through purchase intention as an intervening variable. The sample used was 85 students of the Faculty of Economics and Business, Makassar State University who had been selected based on predetermined criteria. Data collection techniques were carried out by questionnaires, interviews and literature studies. The data analysis technique consists of Outer Model (Measurement Model) which consists of Convergent Validity, Discriminant Validity and Composite Reliability, then Structural Model (Inner Model) and Hypothesis Test. Based on the results showed that the product quality variable has a positive and significant effect on purchasing decisions with a parameter coefficient of 0.192, a t-count value of 2.030, and a p-value of 0.043 <0.05. Lifestyle variables have a positive and significant effect on purchasing decisions with a parameter coefficient of 0.338, t-count value of 3.353 and p-value is 0.001 <0.05. product quality has a positive but insignificant effect on purchase intention with a parameter coefficient of 0.129, t-count value of 1.142 and p-value is 0.254>0.05. Lifestyle has a positive and significant effect on buying interest with a parameter coefficient of 0.558, a t-count value of 6.485 and a p-value of 0.000 <0.05. buying interest has a significant effect on purchasing decisions with a parameter coefficient of 0.558, a t-count value of 6.485 and a p-value of 0.000<0.05

SARA Separation and Determination of Concentration Levels of Some Heavy Metals in Organic Fractions of Nigerian Crude Oil

Nigerian Crude oil samples were obtained from Nigerian Petroleum Development Company (NPDC). The samples were subjected to column chromatography.  Sequential leaching method was used to separate the crude oil into four distinct fractions based on leaching of crude oil with different organic solvents and mixtures. Saturated fraction was extracted with hexane- cyclohexane (1:1v/v), aromatic fraction was extracted with hexane- toluene (7:3v/v), while resin was extracted with tetrachloromethane-trichloromethane (7:3v/v), and asphaltene was extracted with acetonitrile-methanol (1:1v/v). The fractions were digested using sulphuric acid, nitric acid and hydrochloric acid method followed by the detection of metals in the samples using AAS analysis. The elements analyzed were Pb, Cu, Cr, Fe and Ni. The result shows that Fe had the highest concentration while Ni had the least concentration. The concentration (ppm) levels of these elements in the crude oil fraction analyzed range from 0.1307 – 0.4107 for Pb, 0.1796 – 1.1250 for Cu, 2.7420 – 10.1903 for Cr, 11.2962 – 21.8084 for Fe, and 0.0464 – 0.5876 for Ni. It was obvious from this study and previous ones that Nigerian crude oil fractions have low metal content. However, despite their low concentrations they can still be detrimental to the refinery operations and the immediate environment, and therefore, should be removed before refining. Keywords: Atomic Absorption Spectroscopy, Aromatic, Asphaltenes, Risens, Saturates, Heavy Metal

Pattern and management of priapism in a tertiary hospital of North-Western Nigeria

Background: Priapism is a persistent penile erection that continues for more than four hours beyond sexual stimulation and orgasm or unrelated to sexual stimulation1. The objective is to document the pattern and management of priapism in our hospital.Methods: This is a retrospective study of patients managed for Priapism by Urology Unit of our hospital, from January 2009 to December 2015.Results: Thirty patients were managed for managed for priapism within the study period. The mean age at presentation was 23.9 ± 12.2 years with a range of 8- 55 years. Fifteen patients (57.7 %) presented beyond 72 hours of the onset of priapism. All the patients had ischaemic priapism. Half of the patients had sickle cell disease, two (7.7 %) had chronic myeloid leukaemia, five (19.2%) used aphrodisiacs and cause was not established in six (23.1%). The most effective forms of treatments were corporal aspiration and glanulocavernosal shunt. Hydroxyurea was used for the patients with leukaemia. Thirteen (50.0%) of the patients were loss to follow-up after their first visits. Three patients (11.5%) developed erectile dysfunction.Conclusion: Sickle cell disease is the commonest cause of ischaemic priapism in our practice. Late presentation is common and is usually associated with the development of erectile dysfunction.Keywords: priapism, sickle cell disease, aphrodisiacs, erectile dysfunction, treatments of ischaemic priapis

The Occurrence and Antibiotics Sensitivity Profile of Salmonella and Escherichia coli in Commercial Poultry Feeds in Minna, Niger State

The study was conducted to determine the presence of Escherichia coli and Salmonella pathogens from different brand of commercially available poultry feeds in Minna metropolis. A total of 60 samples from three poultry feeds namely; Starter, finisher and layers were  aseptically collected and analyzed using standard microbiological techniques. All samples analyzed were cultured on Nutrient agar media by spread plate’s technique and subsequently on selective media for total bacterial count. Total viable count (TVC) of Salmonella and E. coli recorded in the feeds were as follows: starter 3.47cfu/g, finisher 4.84 cfu/g and layers 9.02 cfu/g. There was a significant (p<0.05) trend in the overall percentage distribution of Salmonella and E. coli contamination across the feed’s category, with the higher distribution  recorded in layers 100% and finisher while, starter had (66.6%) distribution. The overall result of antibiotics susceptibility tests of  Salmonella and E. coli revealed the sensitivity of (53.8%), and resistant of (46.1%) in E. coli while, Salmonella had (38.4 %) sensitivity and (61.5%) resistant to all antibiotics tested. Thus, all the poultry feeds were found to be contaminated with bacteria which may pose a public health risk to human. Therefore, the occurrence of Salmonella and E. coli in poultry feeds reinforces the need for effective control  measures, hygiene in processing and handling of feeds