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Search Results: 1 - 10 of 1707 matches for " Isaac Meroka Mbeche "
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A Survey of Benchmarking Practices in Higher Education in Kenya: The Case of Public Universities
Peterson Obara Magutu,Isaac Meroka Mbeche,Stephen Onserio Nyamwange,Richard Bitange Nyaoga
IBIMA Business Review , 2011,
Abstract: Benchmarking has been used as a tool, a methodology and a technique for continuous improvements in sectoral operations to gain and maintain competitive advantage. This was a survey of benchmarking practices in higher education in Kenya, the case of public universities, whose objectives were; to document the benchmarking activities in the public universities; to establish the challenges facing the public universities in benchmarking. Cross sectional survey was used in this study to collect data from the six public universities with their respective campuses/schools in the population of interest. The respondents were senior administrators and the academic staff. Of the 53 informants who were sampled, 31 responded, thus, a response rate was of 58 percent.Descriptive statistics were used to analyze and summarize the data before presenting it in the form of proportions, means, tables and graphs. This was in line with the first and second objectives, which were actually answered in relation to the benchmarking practices in the academic function of public universities in Kenya. The study found out that continuous improvement systems in Kenyan public universities are good, not excellent. The external drivers of change/continuous improvements in public universities are the customers/students as opposed to legislation, while the major internal trigger of change is the actual performance. The public universities effectively and successfully benchmark for continuous improvement. The Kenyan public universities use action research and performance indicators as the sources of referencing information on benchmarks. The most common type of benchmarking in use is development/improvement benchmarking and planning to make use of international benchmarking. Finally, the three critical factors that have influenced the success of benchmarking practices are: time and resource availability: limited duration, comparability and compatibility, which are reasons why the institutions don’t practice international benchmarking.
A Study of the Relationship among Performance Contracting, Measurement and Public Service Delivery in Kenya  [PDF]
Richard E. Ndubai, Isaac M. Mbeche, Ganesh P. Pokhariyal
Open Access Library Journal (OALib Journal) , 2016, DOI: 10.4236/oalib.1102850
Abstract:
The aim of this study was to establish the factors influencing improvement in performance and delivery of public services. Thus, the paper studied the effect of performance contracting and measurement on public service delivery in Kenya. The public services considered in the study included ministries, state corporations, local authorities and tertiary institutions, with a total of 470 public agencies. The cross-sectional survey design was used. The study is based on performance evaluation results compiled over the period between 2004 and 2011. Using regression analysis, it was found that performance measurement was critical to improvement in public service delivery and explained 73.6 percent of improvement in service delivery, as evidenced by independent measurement of customer satisfaction with the services delivered by the public sector.
A Study of the Intervening Effect of Political Stability on the Relationship between Performance Contracting and Measurement, and Public Service Delivery in Kenya  [PDF]
Richard E. Ndubai, Isaac M. Mbeche, Ganesh P. Pokhariyal
Open Access Library Journal (OALib Journal) , 2017, DOI: 10.4236/oalib.1103402
Abstract:
The performance of public agencies is influenced and affected by many factors, both internal and external. The internal factors are in many cases controllable, while external factors tend to fall outside the control of public sector managers. Moreover, the effect may serve to ameliorate performance or intervene to weaken performance and thereby adversely affect delivery of services. This paper explored the intervening effect of political stability, an external factor, on the relationship between performance contracting and measurement, and public service delivery (expressed as customer satisfaction) in Kenya. The study was based on the results of measurement and evaluation of the performance of 470 public agencies that operated under performance contracts between 2004 and 2011. Using regression analysis, it was found initially that on its own, political stability had no significant relationship with or influence on customer satisfaction. It however had an effect on the relationship between performance contracting, measurement and public service delivery, where a unit change in political stability contributed negatively to customer satisfaction by a factor of 0.257, though not statistically significant. Correlation analysis established further that social chaos and turmoil, which result in political instability, negatively impact the attractiveness of a country in the global arena.
A Study of the Joint Effect of Performance Measurement, Political Stability and Global Competitiveness on Customer Satisfaction  [PDF]
Richard E. Ndubai, Isaac M. Mbeche, Ganesh P. Pokhariyal
Open Access Library Journal (OALib Journal) , 2018, DOI: 10.4236/oalib.1104917
Abstract:
The performance of governments in the delivery of services to the pub-lic—which constitutes the customers who are the tax payers, is affected and influenced by a multitude of factors, some controllable and others outside the control of governments. In addition, each of the diverse factors impacts uniquely on performance while others may have only tangential influence. According to Hansen (1989), there are two streams of research regarding the determinants of firm performance. One is based on the economic tradition and emphasizes external market factors that are largely outside the control of firm management, while the other builds on the behavioral and sociological paradigms focusing on organizational factors as they fit into the environment; the latter therefore focuses on factors internal to the firm. A combination of various factors working together however, has the potential to generate a blend of influences, which is a significant departure from the impact of any factor taken on its own. The ensuing study is set out to establish the joint effect of performance measurement, political stability and global competitiveness—critical internal and external factors that affect or influence the performance of governments—on public service delivery and its customer satisfaction derivative in Kenya. The study was based on the results of measurement and evaluation of the performance of 470 public agencies that operated on performance contracts between 2004 and 2011. Using regression analysis, it was found initially that each of the three factors had a uniquely significant effect on the relationship between public service delivery and customer satisfaction, with performance measurement showing a strong positive relationship (R = 0.858) with customer satisfaction. Performance measurement explained 73.6 percent (R2 = 0.736) of customer satisfaction levels with the remaining 26.4 percent accounted for by other factors. Global competitiveness on the other hand, had a weak positive relationship with customer satisfaction. The results showed that global competitiveness explained 0.7 percent (ΔR2 = 0.007) on the direct effect of performance measurement on customer satisfaction and had an average mean of 3.698 on a scale of 1 (very low) and 5 (very competitive). It turned out that there was no significant moderating effect of global competitiveness on the relationship between performance contracting, measurement and public service delivery in Kenya. The performance measurement variable had a t-value of 5.789 and was statistically significant while the effect of global competitiveness was positive although not statistically significant. Preliminary findings established initially that on its own, political stability had no significant relationship with or influence on customer satisfaction. It however had an effect on the relationship between performance contracting, measurement and public service delivery, where a unit change in political stability contributed negatively to customer satisfaction by a factor of 0.235, though not statistically significant. Correlation analysis established further that social chaos and turmoil, which result in political instability, negatively influenced the attractiveness of a country in the global arena. Overall, the results showed that performance measurement, political stability and global competitiveness were positively related to customer satisfaction. The joint effect of the three independent variables explained 78.5 percent (R2 = 0.785) of customer satisfaction levels with the remaining 21.5 percent accounted for by other factors implemented in the public sector.
Newton’s Method and an Exact Opposite That Average into Halley’s Method  [PDF]
Isaac Fried
Applied Mathematics (AM) , 2017, DOI: 10.4236/am.2017.810103
Abstract:
This note is mainly concerned with the creation of oppositely converging and alternatingly converging iterative methods that have the added advantage of providing ever tighter bounds on the targeted root. By a slight parametric perturbation of Newton’s method we create an oscillating super-linear method approaching the targeted root alternatingly from above and from below. Further extension of Newton’s method creates an oppositely converging quadratic counterpart to it. This new method requires a second derivative, but for it, the average of the two opposite methods rises to become a cubic method. This note examines also the creation of high order iterative methods by a repeated specification of undetermined coefficients.
Newton, Halley, Pell and the Optimal Iterative High-Order Rational Approximation of √N  [PDF]
Isaac Fried
Applied Mathematics (AM) , 2018, DOI: 10.4236/am.2018.97059
Abstract:
In this paper we examine single-step iterative methods for the solution of the nonlinear algebraic equation f (x) = x2 - N = 0 , for some integer N, generating rational approximations p/q that are optimal in the sense of Pell’s equation p2 - Nq2 = k for some integer k, converging either alternatingly or oppositely.
Entropy of Living versus Non-Living Systems  [PDF]
Isaac C. Sanchez
Journal of Modern Physics (JMP) , 2011, DOI: 10.4236/jmp.2011.27077
Abstract: Using a careful thermodynamic analysis of unfertilized and fertilized eggs as a paradigm, it is argued that neither classical nor statistical thermodynamics is able to adequately describe living systems. To rescue thermodynamics from this dilemma, the definition of entropy for a living system must expand to acknowedge the latent genetic information encoded in DNA and RNA.As a working supposition, it is proposed that gradual unfolding (expression) of genetic information contributes a negative entropy flow into a living organism that alleviates apparent thermodynamic inconsistencies. It is estimated that each coding codon in DNA intrinsically carries about -3k in negative entropy. Even prior to the discovery of DNA and the genetic code, negative entropy flow in living systems was first proposed by Erwin Schrödinger in 1944.
Cardiac Immobilization in Beating Heart Surgery Using Pericardial Bands  [PDF]
Srikrishna Sirivella, Isaac Gielchinsky
World Journal of Cardiovascular Surgery (WJCS) , 2012, DOI: 10.4236/wjcs.2012.22005
Abstract: A novel technique of stabilization of the coronary targets with autogenous pericardial bands is described in off pump coronary revascularizations. Pericardial bands are placed across the coronary targets and snared to the pericardial well for local cardiac immobilization. This technique can be used as an alternate to mechanical stabilizers for immobilization of the coronary targets.
Hemodynamic Changes during Off-Pump Coronary Ar-tery Bypass Graft Surgery: Experience Using Pericardial Bands for Target Stabilization  [PDF]
Srikrishna Sirivella, Isaac Gielchinsky
World Journal of Cardiovascular Surgery (WJCS) , 2013, DOI: 10.4236/wjcs.2013.38045
Abstract: Background: The off-pump coronary artery bypass graft surgery (OPCAB) may produce significant hemodynamic instability necessitating conversion to on-pump surgery. This study evaluated the hemodynamic parameters in patients undergoing OPCAB using pericardial bands for stabilization of the coronary target sites. Methods: In 250 patients undergoing OPCAB the hemodynamic parameters including continuous cardiac output and systemic venous oxygen saturation (SvO2) were recorded at baseline after pericardiotomy, during each coronary artery anastomosis at 3, 5, 10, 15 min, and after release of the pericardial bands used for target stabilization. Vasopressors were used to maintain mean arterial pressure (MAP) > 60 mmHg. Results: SvO2 and cardiac index (CI) decreased significantly after target stabilization and during all coronary anastomoses with greater decreases noted during obtuse marginal branch of left circumflex (OM) anastomosis. The MAP and heart rate were maintained without significant change but central venous pressure increased significantly during all coronary anastomoses. The significant increase in pulmonary capillary wedge pressure and mean pulmonary artery pressure were noted only during anastomosis of the left anterior descending artery. The highest dose of vasopressor was used during OM anastomosis. Conclusions: During OPCAB surgery using pericardial bands for coronary target stabilization, MAP was maintained constantly, but SvO2 and CI decreased immediately after target stabilization and reduced further during all coronary artery anastomoses. During OM anastomosis SvO2 and CI were significantly lower as compared to that of LAD and right coronary artery. Careful monitoring and management of hemodynamic variables are warranted to avoid conversion to on-pump technique.
An Assessment of Heavy-Metal Contamination in Soils within Auto-Mechanic Workshops Using Enrichment and Contamination Factors with Geoaccumulation Indexes  [PDF]
Isaac A. Ololade
Journal of Environmental Protection (JEP) , 2014, DOI: 10.4236/jep.2014.511098
Abstract:

Soil characterization and heavy metals in different layers (0 - 15 cm; 15 - 30 cm and 30 - 45 cm depth) of automobile mechanic waste dumps were studied. The soils showed remarkably high levels of all the metals above background concentrations with most (Ni, Cu, Fe, Cr and Cd) decreasing with soil depth. The distribution pattern were in the following order Fe > Cu > Zn > Pb > Cr > Ni > Cd. Across all the sampling locations and profiles, Fe and Cd showed the highest (476.4 μg·g-1) and least (37.5 μg·g-1) mean concentrations respectively. Pollution load index (PLI) and index of geoaccumulation (Igeo) revealed overall high and moderate contamination respectively but the enrichment factors (EFs) for Pb Ni and Cd are severe. The inter-element relationship revealed the identical source of elements in the soils of the studied area. The accuracy of the results has been cheeked using the standard reference material; SRM (PACS-2). The mechanic waste dumps represent potential sources of heavy metal pollution to environment. The elevated levels of heavy metals in these soil profiles constitute a serious threat to both surface and groundwater.

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