FACULTY OF THE SOCIAL SCIENCES
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Item Analytical hierarchical process of soil erosion risk assessment in Ondo State, Nigeria(2010) Taiwo, O. J.Soil erosion risk assessment and landuse planning strategics have become increasingly more data-intensive, sophisticated and highly complex involving myriads of quantitative and qualitative techniques. One of the methods that can help in synchronizing all these diverse data sets within a decision making framework is the analytical hierarchical process (AHP) developed by Satty. AHP provides a better technique for the comparison of factors based on decision matrices. It also provides structured methods for the incorporation of experts’ opinions in the ranking of factors. This study examines the use of the AHP in modelling soil erosion risk using Universal Soil Loss Equation (USLE). Rainfall data, landuse/landcover, digital elevation data, soil erosivity index, supporting practices and expert opinions were integrated using AHP to identify areas with varying degrees of erosion risk potential. A pairwise comparison of the four factors identified by experts and supported by the USLE model was performed by means of Saaty's square it is a reciprocal matrix with unit rank whose eigenvector solution gives the priority or the relative importance, or dominance, of the elements on a ratio scale. The inputs to the matrix were derived from field survey and expert opinions on the relative dominance of the elements within each pair by using a nine-point scale. The approach retains the quantitative conceptual elements of the USLE methodology while allowing for a qualitative assessment and ranking of pertinent factors of soil erosion at micro level. The study shows that hilly areas with high rainfall particularly in the urban areas have the highest erosion risk potential while the natural forest areas have the least. It therefore shows the utility of AHP in coupling existing models with expert opinions as well as some subjective indicators in decision making. The method was capable of ranking ecosystems in terms of environmental conditions and suggesting cumulative impacts across a large region.Item Psychological well-being: impact of workplace violence and demographic variables on employees of ministry of physical planning and urban development, Ibadan, Oyo State(2016) Okhakhume, A.S.; Awopetu, R. G.The study investigated the influence of demographic factors and work place violence on psychological well-being among employees of ministry of physical planning and urban development, Ibadan , Oyo State. A structured questionnaire was adopted for data collection which was administered on two hundred employees. Data was analysed using descriptive and inferential statistics. Five hypotheses were stated and tested. Result showed there was a significant influence of workplace violence on psychological well-being [t(-15.418;df=199, p<.05).There was a significant influence of academic qualification on psychological well-being (F(2,198)=6.305; p<.05). age had significant influence on psychological well-being [t(-2.509;df=199, p<.05)]The mean observation however shows that older employees score higher (X=55.06) on psychological well-being than their counterparts (X=51.63). There was also a significant influence of years of experience on psychological well-being {t(-2.039;df=199, p<.05)}. Furthermore, the mean observations shows that respondents with high experience scored higher (X=55.19) on psychological well-being that their counterparts with lower experience (X=52.31). it was recommended that, future study can include a larger and more broader-based sample. It would be appropriate to conduct quantitative and qualitative studies with a larger and more heterogeneous sample