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A mathematical model is analyzed to study the effect of various physical parameters related to non-isothermal flow of third grade fluid in the presence of thermal radiation through a porous medium. Hence, the objective of this paper is to investigate the combined impacts of magnetic field, viscous dissipation, thermal radiation, varying thermal conductivity and viscosity on non-isothermal flow of a third grade fluid with thermal radiation through a porous medium. The Galerkin weighted residual method was used to solve the resulting non-linear ordinary differential equations numerically. The graphic representation and discussion of the effect of various significant parameters on the flow system are presented. The investigation of this problem leads to the conclusion that the thermal radiation parameter, the variable thermal conductivity and viscosity parameters have a significant impact on the mass flow and the energy transfer phenomena in the system. [ABSTRACT FROM AUTHOR]

The article discusses library and information science in Nigeria as of April 2012, with a focus on faculty members in Nigerian universities and their use of electronic information sources (EIS). Topics include access and retrieval of digital information, online public catalogues (OPAC) and electronic learning (e-learning), and effective search strategies for online databases. Additional information is presented on EIS preferences among faculty members, descriptive statistical techniques, and questionnaires.