Table of Contents

User Perceptions of Colour as a Means of Communication

I. I. Ella, O. Onazi, E. O. Ola-Adisa and O.S. Ugbem                                        1-16

An Appraisal of Shading Devices in Institutional Buildings

O. Onazi, N. S. Gaiya, E. O. Ola-Adisa and D. G. Yilme                                   17-31

A Reevaluation on Collide of  Emission on Climate Change

E. W. Likta                                                                                                       32-42

Assessment on Efficacy of Locally-Made Digital Instructional Material

on Achievement Of Physics Students On Current Electricity

Nwoye,  Amarachukwu Nkechi & Nwosu, Frederick Chukwuebuka                43-61

Design Parameters of a Centrifugal Fan for A 200kg Crucible Furnace

Musa Dalil Bello Abubakar Jibrin Abdullahi, Igbax Saanyol Ityokumbul        62-73

Analytical Solution OF a Mathematical Model of Tuberculosis with

Passively Immune Compartment

Abdullah Idris Enagi,Mohammed Olanrewaju Ibrahim &Fatima Sulayman 74-94

Topography, Dumpsites and Groundwater Studies: An Overview

R.N. Opeh & M.O. Atenaga                                                                             95-101

Physicochemical Parameters and Phytoplankton Diversity of Kware Lake

Arzika, A.T.,Adili, A.T., Bagna, E.A., Dandare, K.U., andMohammed, S.                        102-113