Social media, knowledge management adoption and information and communication technology project success in the South African context

Thesis (M.Com. (Development Theory and Policy))--University of the Witwatersrand, Faculty of Commerce, Law and Management, School of Economic and Business Sciences, 2016.Many ICT projects continue to fail despite the use of established projects methods and techniques as the proper communication systems required for successful project outcomes have been lacking. It is generally believed that the adoption and diffusion of information and communication technologies (ICTs) makes a contribution to a nation‟s economic and sustainable development. The explosion of social media is changing the way we communicate and therefore the processes involving project management information systems. Research shows that as technology usage lags, so does per capita income, skills development and productivity. Despite much global literature that relates to the failure of ICT projects, what is absent from the literature is knowledge of the relative contribution of different factors to ICT project success in the South African context. This study sought to address this absence. From a review of the literature on social media tools and knowledge sharing and reuse, four propositions relating the use of social media and adoption of certain knowledge management practices to the success of ICT projects were generated about the likely impact of these variables on ICT project performance. The research study was conducted over twenty-month effort. Both qualitative and quantitative data were obtained. The qualitative study based on a grounded theory analysis of ICT professionals, derived propositions that were tested empirically. Bivariate correlation analysis, multiple linear regressions and multiple hierarchical regression analyses were applied. Results indicated that knowledge management adoption mediates the relationship between social media usage and ICT project cost performance. Additionally project type was found to play a moderating role in the relationship between knowledge management and project performance. Implications for practice and theory are discussed

Vorticity-Velocity formulation for the stationary Navier-Stokes equations: The three-dimensional case

AbstractIn this article, we propose a mixed method for the vorticity-velocity formulation of the stationary Stokes and Navier-Stokes equations in space dimension three, the unknowns being the vorticity and the velocity of the fluid

Pullback attractors for a non-autonomous homogeneous two-phase flow model

AbstractThis article studies the pullback asymptotic behavior of solutions for a non-autonomous homogeneous two-phase flow model in a two-dimensional domain. We prove the existence of pullback attractors AV in V (the velocity has the H1-regularity) and AY in Y (the velocity has the L2-regularity). Then we verify the regularity of the pullback attractors by proving that AV=AY, which implies the pullback asymptotic smoothing effect of the model in the sense that the solutions eventually become more regular than the initial data. The method used in this article is similar to the one used in Zhao and Zhou (2007) [42] in the case of the non-autonomous incompressible non-Newtonian fluid in a two-dimensional domain. Let us mention that the nonlinearity involved in the model considered in this article is stronger than the one in the two-dimensional non-Newtonian flow studied in Zhao and Zhou (2007) [42]

Use of Isotropic Stress State Framework to Evaluate the Effect of Suction on Some Mechanical Parameters of Sainte-Rosalie Clay Submitted to Confined Compression

Rosana G. Moreira, Editor-in-Chief; Texas A&M UniversityThis is a paper from International Commission of Agricultural Engineering (CIGR, Commission Internationale du Genie Rural) E-Journal Volume 6 (2004): R. Medjo Eko. Use of Isotropic Stress State Framework to Evaluate the Effect of Suction on Some Mechanical Parameters of Sainte-Rosalie Clay Submitted to Confined Compression. (April 2004)

Bibliographie des langues du Gabon revisitée

Cet article fait l'inventaire des travaux récents sur les langues du Gabon. Il prend en compte les publications ou les monographies qui sont parues depuis les années 84-85. Cette bibliographie constitue ainsi une mise à jour de la contribution de Hombert et Mortier (1984), qui recense de son côté toutes les références bibliographiques qui ont été publiées avant cette même période