Browsing by Author "Adejumo, A.O."
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Item Empirical Study of Psychotic Disorder Patients in Nigeria(Federal University Wukari, Taraba State, Nigeria, 2017) Adejumo, A.O.; Ashaka, S.D.; Job, O.; Adeniyi, O.I.; Oguntunde, P.E.; Odetunmbi, O.A.; Adetunji, A.A.A study on psychotic disorder ailment was carried out in this research paper where the target population consists of all patients that has any of the following five psychotic disorders: Menial Brain Dysfunction (MBD); Schizophrenia; Vascular Dementia; Bipolar; and Insomnia. The sample consist of five hundred (500) psychotic patients that were selected from the entire number of psychotic patients in the hospital records (files) from January, 2010 to December, 2014. They were selected based on their peculiar ailments with symptoms of psychotic disorders. The main aim of this paper is to examine the possible existence of association among these psychotic disorders. The specific objectives are to: determine the demographic factors that influence the levels of each of these psychotic disorders; propose appropriate model for each psychotic disorder; and d etermine the level of correct classification using each of these models. We observed that there exist strong association among these psychotic disorders except for MBD and Vascular Demetria. Nearly all the demographic factors under consideration are one way or the other influence the levels of any psychotic disorder except divorce, injury, and genetic. The percentages of correct classification using each of the models proposed ranges between 70.8% and 91.2%.Item An exploratory Study of Number of Children Desired and What Accomplished in Family Settings(University of Sofia, Bulgaria, 2017) Adejumo, A.O.; Taiwo, S.A.; Job, O.; Adeniyi, O.I.; Oguntunde, P.E.; Odetunmbi, O.A.; Akinrefon, A.A.In any family settings, racing children is a big decision that requires serious self-reflecting and communication between couples. In African settings, there is usually a rift in the agreement of the number and the gender of children to be borne by couples; while the man prefers a male child, the wife may prefer a female child instead. The number of children by the couple also determine the kinds of education those children will eventually have later. To this effect, in this research work, we want to study the Man’s proposed and ac-tual number of children; the degree of association in the man’s decision using Quasi symmetry and Homogeneous Agreement model; how well some factors (Age, Religion, Family status, Occupation, Level of education and Ethnic group) influence the number of children; and to know the stopping rule for child bearing by the man. It was observed that 16.2% of the respondents had above the number of children proposed when they stopped bearing children, 21.5% of the respondents had below the number of children proposed when they stopped while 62.3% of the respondents had the exact number of children proposed when they eventually stopped bearing children. We observed that Age and Religion influence the number of children. We also observed that the probability ( p) of having at least one male child is 0.8019 based on the available data. The chance of any newly wedded couple ever having a male child at any trial follows a geometric distribution 3 , 2 , 1 , ) 1981 . 0 )( 8019 . 0 ( ) (1 x x fx. Quasi symmetry model has a better fit for agreement measure than Homogeneous agreement model.Item Modelling of Enugu Monthly Rainfall Using Box and Jenkins Methodology(Tibiscus University of Timisoara, Romania, 2018) Adejumo, A.O.; Oloyede, T.O.; Adejumo, O.A; Oguntunde, P.E.; Odetunmbi, O.A.; Ikoba, N.A.; Job, O.The paper examined the rainfall distribution of Enugu state in Nigeria. Box-Jenkins methodology was used to build ARIMA model to analyze data and forecast for the period of 15 years, from January, 200 2 to December, 2016 and to predict for the future. We observed that the average annual rainfall of Enugu state ranges from 124mm to 179mm. The irregularity in annual rainfall ofEnugu State one and half decades ago is a bit large, indicating that climate stability is high in the state. Different time series models were diagnostically checked, and tested for Enugu state and at last an SARIMA (0, 0, 0) (1, 0, 1)12 model is chosen as the proposed best model. The proposed model was used to forecast two years’ monthly rainfall value for the state. The results indicated that relatively there is a tendency of increasing in trend of future rainfall values in the state.Item Performances of Ordinary and Generalized Least Squares Estimators on Multiple Linear Regression Models with Heteroscedasticity(Akama University, 2016-05) Adejumo, A.O.; Job, O.; Isaac, T.D.; Oyejola, B.A.This paper focuses on the impact of heteroscedasticity on the estimate and variance of model parameters by studying the performances of Ordinary Least Square (OLS) and General Least Square (GLS) estimators in multiple linear regression models with two independent variables only and error term characterized with different magnitudes of heteroscedasticity related to predictors at different sample sizes. This research explored the patterns of the variance estimates offered by the two estimators when data is front with heteroscedasticity. Also the studies explored the situations where concepts of substitute, complementary or joint demands/supply may reflect in the stochastic characterization of the error term. From Monte Carlo simulation studies using R-package the GLS estimator maintains its superiority over the OLS in multiple linear regression models.Item Quantitative exploration of factors influencing psychotic disorder ailments in Nigeria(ELSEVIER INC, 2017) Adejumo, A.O.; Ikoba, N.A.; Suleiman, E.A.; Okagbue, H.I.; Oguntunde, P.E.; Odetunmbi, O.A.; Job, O.In this data article, records on demographic data, family problem issues, as well as results of medical tests from five major classes of psychotic disorder namely: bipolar; vascular dementia, minimal brain dysfunction; insomnia; and schizophrenia, were collected on 500 psychotic patients carefully selected from the pool of medical records of Yaba Psychiatric Hospital, Lagos, Nigeria, for the period of 5 years,between January 2010 and December 2014, were examined.X-squared Statistic was used to examine each of psychotic disordersto identify demographic (age, gender, religion, marital status, and occupation) and family issues (loss of parent, history of such ailment in the family (family status), divorce, head injury, and heredity of such ailment (genetic) factors that influence them. A clear description on each of these psychotic disorders (bipolar; vascular dementia,minimal brain dysfunction (MBD), insomnia and Schizophrenia) was considered separately using tables and bar diagrams. Data analysis results are as follows: firstly, 40.2%, of the 500 psychotic patients tested positive to bipolar, 40.6% to insomnia, 75.0% to schizophrenia,43.6% to MBD and 69.2% to vascular dementia. Secondly, female patients were more prone to all the psychotic indicators than their male counterpart except in MBD. Thirdly, the oldest age group (460 years) is more prone to bipolar and insomnia ailments, while the mid age group (30–60 years) is prone to schizophrenia and vascular dementia, and the youngest group (o30 years) is prone to MBD. Lastly, the factors that influence the ailments are listed:bipolar(age, occupation, marital status,divorce,and spiritual consultation);insomnia (age,occupation, marital status,divorce,and spiritual consultation);schizophrenia(age, occupation, religion, marital status, hereditary, and divorce); MBD(gender, age, occupation, and marital status); and vascular dementia(history of the ailment and spiritual consultation). Bipolar and insomnia are influenced by the same set of factors, which implies that any patient having one is most likely to be at risk of having the otherItem A Study of Prominent Crimes in Kwara State, Nigeria(de l'Universite de Lome, 2017) Adejumo, A.O.; Hammed, A.A.; Ikoba, N.A.; Job, O.; Adeniyi, O.I.; Oguntunde, P.E.; Odetunmbi, O.A.Nigeria has been experiencing high rate of criminal activities where crimes are being carried out with more perfect and sophistication for over ten years now. The recent amongst are the insurgent called Boko Haram who believed that western civilization of education for all is unlawful and the Avengers also called Militants in the Niger Delta part of Nigeria who believed the Government is cheating their people in that region. The data for this study contained records of different crime committed in Kwara states between 2004 and 2014. This research work is to: identify the prominent crime types; determine the association that existed between pairs of crime types; reduce the dimension of the data using statistical tools; and classify the crime types in different colonies. Principal Component, Biplot, correlation analysis and other statistical tools were utilized in this paper. The pair wise correlation test of significance table indicated that, out of the 45 pair wise correlations, only 6 are significant at 5% and these include; homicide-suicide, homicide-robbery, suicide-robbery, rape-theft, assault-broken, broken-theft and broken-unlawful. We observed that crime types such as assault, unlawful, broken and theft can be grouped together as the most frequent crimes committed; the prevailing cases occurred in the year 2006 and 2008. We also observed that, suicide, homicide and robbery formed the next group, which are more frequent in the year 2009, 2010 and 2011. Kidnapping and arson are not frequently committed but they are more prominent in the year 2012 and 2013. Rape formed the lowest standalone crime type committed and also less frequent with no year of prevailing occurrence.