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Search Results: 1 - 10 of 461992 matches for " A. Akinbobola "
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Trend Analysis of Precipitation in Some Selected Stations in Anambra State  [PDF]
A. Ifeka, A. Akinbobola
Atmospheric and Climate Sciences (ACS) , 2015, DOI: 10.4236/acs.2015.51001
Abstract: State is in the South East geopolitical zone of Nigeria. The major occupation of the people in this region is trading and farming, which depends on rainfall and other climatic factors. This paper presents statistical and trend analyses of the rainfall in some selected stations in Anambra State, which includes Ifite-Ogwari, Awka, Onitsha and Ihiala. Rainfall data for a period of 1971-2010 were obtained from Climate Research Unit (CRU). The existence of trend and statistical analyses was conducted on monthly total rainfalls using non-parametric techniques. The study revealed that overall averages of yearly and monthly total rainfall were 5798.78 mm and 1739.62 mm in Ifite-Ogwari, 6051.8 mm and 1815 mm in Awka, 6288.87 mm and 1886.88 mm in Onitsha, and 6637.19 mm and 1997.1 mm in Ihiala. Yearly total rainfall has Mann-Whitney of 26 and 41 between 1971 and 1990, 1991 and 2010 respectively in Ifite-Ogwari, 32 and 42 between 1971 and 1990, 1991 and 2010 respectively in Awka, 42 and 39 between 1971 and 1990, 1991 and 2010 respectively in Onitsha, and 33 and 45 between 1971 and 1990, 1991 and 2010 respectively in Ihiala. These parameters show that there are significant trends in the rainfall in term of yearly total for the period. Sen’s estimator revealed that there were significant downward trends for yearly total (-0.775 mm/year) and (-0.094 mm/year) within the period of 1971-1990 and 1991-2010 in Ifite-Ogwari. There was an upward trend of yearly total (1.841 mm/year) between 1971 and1990, whereas there was a downward trend of yearly total (-0.211) between 1991 and 2010 in Awka. It was concluded that there was a significant downward trend in the yearly total and mean rainfalls in Ifite-Ogwari, Awka, Onitsha and Ihiala in the last four decades (40 years), which could be attributed to climate change.
Malaria and pneumonia occurrence in Lagos, Nigeria: Role of temperature and rainfall
A Oluleye, A Akinbobola
African Journal of Environmental Science and Technology , 2010,
Abstract: The role of climatic parameters in the prevalence and severity of some common diseases is being speculated in the face of changing climate of the world. We investigate this supposition by expounding the relationship between malaria, pneumonia, rainfall and air temperature over Lagos, Nigeria. This study uses temperature and rainfall data of 60 years and 14 years record of reported cases of malaria and pneumonia infection. Significant climatic change was detected in both rainfall and air temperature when standard method of change detection was applied. While rainfall showed a decreasing trend resulting into drier conditions, temperature tends to increase resulting into warmer environment. Temperature spells were found to increase in frequency during the last two decades, and there are tendencies for further increment given the current rate of increasing temperature. Air temperature and malaria correlation coefficient was high and positive in the months of February and December ranging between 40 and 95% but high and negative only in November. Coefficient of correlation between rainfall and pneumonia was high in the range of 50 and 90% and positive in February, May, July and August. The months of March, April, June, September, October and December also showed positive correlation but the coefficients are so weak and insufficient (<20%) to justify reasonable relationship between the variables in these months. We conclude that climatic parameters, rainfall and air temperature, have profound influence on both malaria and pneumonia occurrence and are responsible directly for intractable increase of the diseases.
Simulating Land Cover Changes and Their Impacts on Land Surface Temperature in Onitsha, South East Nigeria  [PDF]
Ademola Akinbobola
Atmospheric and Climate Sciences (ACS) , 2019, DOI: 10.4236/acs.2019.92017
Abstract: The increasing urbanization generally is brought about by many eco-environmental problems, such as the drastic change of land use and development of urban heat island. This study identified the pattern of land cover changes in Onitsha, South East Nigeria, and assessed the trend in temperature over the area from 1986 to 2016, simulated the land cover changes for 2030 and 2044, and estimated their impacts on land surface temperature (LST). These were with the view to determining the effects of changes in land use/cover on the LST in the area. Primary and secondary data were used for the study. The primary data were coordinates of geographic features within the study area, collected through the use of global positioning system. The secondary data were minimum and maximum temperature data from the Nigerian Meteorological Agency (NIMET), high-resolution Quick-bird imagery, Landsat TM/ETM imageries for four epochs (1986, 2002, and 2016) with path and row of 189 and 56. Individual components (bare surface, built-up, vegetation and surface water bodies) in the study area were extracted from the images. Radiometric correction was first performed (for 2016 landsat imagery) to fill the line scan corrector (LSC) gaps using Focal Analysis tool in ERDAS Imagine 14.0. This was followed with clipping of the satellite imagery to extract only those portions that are within the boundary of the study area. Supervised image classification was done for the three series of remotely sensed imageries to extract the spatial pattern of land cover change. The results revealed that the study area has been growing to a relatively compact urban agglomeration. The concentration of built-up area at the western and the central part of the study area has been getting larger and more aggregated. Built-up area increased by 11.49% from 1986 to 2002 and 5.68% from 2002 to 2016 while vegetation decreased by 6.03% from 50.26% in 1986 to 44.23% in 2002. The decrease further continued from 44.23% in 2002 to 29.79% in 2016 (change of 14.44%). Expansion to spread into the sub-urban and rural communities bounding the metropolis, converting agricultural and green area to built-up areas. The land cover trend of the study area from the period of 1986-2016 shows dramatic changes for the dominant land cover types. The analyzed trend in temperature change shows that the central parts of the city have a temperature higher than the outlying parts. The results indicated that the average temperature of the study area increased from 24
Facilitating Students\' Attitude in the Concept of Heat Energy in Nigerian Senior Secondary School Physics Using Models, Realia and Instructional Charts
A O Akinbobola, G A Ikitde
African Research Review , 2008,
Abstract: This study investigated the facilitating effect of models, realia and charts on students' attitude in teaching the concept of heat energy in Nigerian senior secondary school Physics. A total of 183 senior secondary two (SS2) Physics students constituted the sample. This study adopted quasi-experimental design in 4 co-educational secondary schools in Ife South Local Government Area of Osun State, Nigeria. Physics Attitude Scale (PAS) was used to collect the data and the coefficient of internal consistency for PAS was 0.85 using Cronbach alpha. The data collected were analyzed using Analysis of Covariance. The results showed that models were the most effective in facilitating students' attitude towards leaning Physics. This was then followed by realia while charts were found to be the least effective in facilitating students' attitude towards Physics learning. The results also showed an insignificant gender difference in the attitude of students towards Physics when taught with models, realia and charts. The results also indicated that the facilitating effect of instructional materials on students' attitude towards Physics is not the same at all levels of gender. It is recommended that charts should be used together with models/realia materials for the main lesson, revision and reference purposes.
Constructivist Practicies Through Guided Discovery Approach: The Effect on Students' Cognitive Achievements in Nigerian Senior Secondary School Physics
A.O. Akinbobola,F. Afolabi
Bulgarian Journal of Science and Education Policy , 2009,
Abstract: The study investigated constructivist practices through guided discovery approach and the effect on students’ cognitive achievement in Nigerian senior secondary school Physics. The study adopted pretest-posttest control group design. A criterion sampling technique was used to select six schools out of nine schools that met the criteria. A total of 278 students took part in the study; this was made up of 141 male students and 137 female students in their respective intact classes. Physic Achievement Test (PAT) with the internal consistency of 0.77 using Kuder-Richardson formula (21) was the instrument used in collecting data. The data were analyzed using Analysis of Covariance (ANCOVA) and t-test. The results showed that guided discovery approaches was the most effective in facilitating students’ achievement in physics after being taught using a pictorial organizer. This was followed by demonstration while expository was found to be the least effective. Also, there exists no significant difference in the achievement of male and female physics students taught with guided discovery, demonstration and expository teaching approaches and corresponding exposure to a pictorial organizer. It is recommended that physics teachers should endeavor to use constructivist practices through guided discovery approach in order to engage students in problem solving activities, independent learning, critical thinking and understanding, and creative learning, rather than in rote learning and memorization.
Analysis of Science Process Skills in West African Senior Secondary School Certificate Physics Practical Examinations in Nigeria
A.O. Akinbobola,F. Afolabi
Bulgarian Journal of Science and Education Policy , 2010,
Abstract: This study analyzes the science process skills in West African senior secondary school certificate physics practical examinations in Nigeria for a period of 10 years (1998-2007). Ex-post facto design was adopted for the study. The 5 prominent science process skills identified out of the 15 used in the study are: manipulating (17%), calculating (14%), recording (14%), observing (12%) and communicating (11%). The results also show high percentage rate of basic (lower order) science process skills (63%) as compared to the integrated (higher order) science process skills (37%). The results also indicate that the number of basic process skills is significantly higher than the integrated process skills in the West African senior secondary school certificate physics practical examinations in Nigeria. It is recommended that the examination bodies in Nigeria should include more integrated science process skills into the senior secondary school physics practical examinations so as to enable the students to be prone to creativity, problem solving, reflective thinking, originality and invention which are vital ingredients for science and technological development of any nation.
Environmental Worry of River State Residents in the Niger Delta Region, Nigeria  [PDF]
Olusola I. Akinbobola, Bernard E. Njor
Psychology (PSYCH) , 2014, DOI: 10.4236/psych.2014.51007
Abstract:

Human-made cataclysmic events from over 50 years of oil production, gas explosions, and oil spillages soak the Niger Delta pose psychological challenges to the people in the environment. Thus this study examined environmental worry of Rivers State residents of Niger Delta, Nigeria. Data collected were analysed using independent t-test and one-way ANOVA. The findings of the FGD revealed that there is an awareness of loss of land, loss of control of technical networks in oil production and experience of environmental degradation. Additionally, the survey results showed a significant difference on environmental worry based on sex and age. However, nativity, employment status and educational status did not significantly differentiate between groups on environmental worry. The implication of the results of the study is discussed in line with relevance of residents’ expectations, prospects and choice of enduring lifestyle, living and survival.

Emotional Empathy, Social Distance and Attitude of Police Officers towards People with Mental Illness  [PDF]
Olusola I. Akinbobola, Sheba Y. Zugwai
Psychology (PSYCH) , 2019, DOI: 10.4236/psych.2019.106054
Abstract: People with mental illness are generally stigmatized. This study therefore specifically investigated the relationship between emotional empathy, social distance and attitude towards mental illness by police officers who interface with people with mental illness in the course of duty. A total of 300 police officers comprising of 148 (49.3%) males and 152 (50.7%) females were selected from the Police Training College Ikeja, Lagos State. This study adopted a cross sectional survey using purposive sampling technique. The instruments for data collection were structured psychological scales which are the multi-dimensional emotional empathy scale, social distance scale and community attitude toward mental illness scale. Data collected were analysed using multiple regression and independent t test. The result indicated that emotional empathy and its dimensions (suffering, positive sharing, responsive crying, emotional attention, feel for others, emotional contagion) and social distance had significant joint influence on attitude towards people with mental illness [F (7,292) = 2.85, P < .01)]. However, emotional empathy (β = .58, t = 2.46, P < 0.01), positive sharing (β = -.52, t = -3.84, P < 0.01) and responsive crying (β = -.15, t = -2.06, P < 0.05) had significant independent influence on attitude towards people with mental illness. Also, male police officers exhibit more sympathetic attitude towards people with mental illness than female police officers {t (298) = -1.778, P < 0.05}. Recommendation is made for psychological intervention to police officers for zero stigmatisation tolerance, and training on emphatic altruism and concern.
Status of Human Resources: Implications for the Implementation of Upper Basic of the Universal Basic Education (UBE) Programme in Bayelsa State of Nigeria
I.B. Ado,A.O. Akinbobola,G.B. Inyang
Bulgarian Journal of Science and Education Policy , 2010,
Abstract: This study investigates the status of human resources in Bayelsa State of Nigeria and its implications for the implementation of upper basic of the Universal Basic Education (UBE) programme. A total of 181 teachers were involved in the study. The results of the study show that there are qualified human resources for the implementation of upper basic of the UBE programme in Bayelsa State of Nigeria but they are inadequate in all the three basic subjects (English Language, Mathematics and Integrated Science). Also, there is no significant difference in the availability and adequacy of human resources in the three subjects. It is recommended that adequate human resources should be provided by the government for effective teaching and implementation of the UBE programme.
Aggregate Energy Consumption and Sectoral Output in Nigeria
PI Nwosa, TO Akinbobola
African Research Review , 2012,
Abstract: This study examined nexus between aggregate energy consumption and sectoral output in Nigeria for the period spanning 1980 to 2010. Utilizing a bi-variate Vector Auto-regressive (VAR) model, the study observed bi-directional causality between aggregate energy consumption and agricultural output while a unidirectional causality was found from service output to aggregate energy consumption. The concluded that the nexus between energy consumption and output of individual sectors of the economy are different and therefore recommended sector specific energy policies rather the one fit-for-all policy. Also, energy conservation policies would be harmful to the productive activities of agricultural and service sectors of the Nigerian economy.
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