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    Construction of Markov Transition Matrices for Cohorts of Students in Bsc.Actuarial Science Programme

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    This paper presents an application of Markov Analysis of student flow in a higher educational institution. In the education system not all students who begin an academic year stay till the end. Many of them invariably drop out for a variety of reasons. A transition model is one which describes the stocks and flows of students through an education system in terms of transition ratios. In this paper we describe one such model which traces the flow of a cohort of students through the system. In this study, the model considered is that of first-order Markov chain. Also the particular Markov chain studied here has a finite number of states and a finite number of points at which the observations are made. It is shown that under fairly general Markov chain model of the transitional determination, student flows do not display the random walk characteristics which may be interpreted as purely following a Markov proces

    Factors facing children enrollment in Primary School in Mutomo District ,Kitui County in Kenya

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    The deleterious effect of pyrollic-nitrogen on the substitution reactivity of tridentate N^C^N platinum(II) complexes. A kinetic and mechanistic study

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    The rate of substitution of the chloride ligand in 1,3-bis(pyridyl)benzene platinum(II) chloride (Pt1), 1,3-bis(N-pyrazolyl)benzene platinum(II) chloride (Pt2), 1,3-bis(8-quinolyl)benzene platinum(II) chloride (Pt3), and 1,3-bis(7-azaindolyl)benzene platinum(II) chloride (Pt4) by three neutral nucleophiles with different steric demands, thiourea (Tu), N,N’-dimethylthiourea (Dmtu), and N,N,N,’N-tetramethylthiourea (Tmtu), was studied under pseudo-first-order conditions in methanol. The investigation was performed as a function of concentration and temperature using stopped-flow and UV–visible spectrophotometric techniques. The observed pseudo-first-order rate constants for substitution obeyed the rate law: . The reactivity of the rigid planar five-membered chelate complexes (Pt1 and Pt2) is influenced by the push and pull effect of the σ/π-character of the cis moieties, while in the six-membered complexes (Pt3 and Pt4) it is dependent on their structural topology and electronic features. The study showed that the presence of the pyrrolic-N π-donor within the chelate, irrespective of the chelate size, rigidity/flexibility, and symmetry, retards ligand substitution reactions. The second-order kinetics and large negative entropies support an associative mode of activation. DFT calculations were performed to support the interpretation and discussion of the experimental data

    7000 to graduate at Mount Kenya University today

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    Over 7,000 Mount Kenya University (MKU) students, including six PhDs from the School of Medicine, are set to graduate today

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