Table of Contents

Analysis of Produced Water from Four Communities in Delta State

(Niger Delta), Nigeria

Umudi, E. Q.……………………………………………………………………………………………….         1-6

Modelling of the Monochromatic Photon-To-Current Efficiency of Solar

Cells Using Matlab

Efurumibe Ezinna Lucky and Asiegbu, Daniel Anyalewechi……………………………….  7-10

The Significance of Biogas Plants in Nigeria’s Energy Strategy

Opeh Raymond and Okezie U…………………………………………………………………………      11-17

The Role and Impact of Information System and Society in Information

and Communication Technology

Lanloye, D.O and Oloruntoyin S. T.……………………………………………………………….      18-28

Recycle of Polyethylene Tetraphthalate Waste

P. Oghome………………………………………………………………………………………………….      29-34

Experimental Study of Electronic Key Movement Book for Organizations

Japheth B. R. and Patrick K …………………………………………………………………………..      35-50

Synthesis and Spectropic Characterization of Schiff Base Complexes of Cinnamaldehyde Hydrazones

O .W. Salawu and A.O Abdulsalam………………………………………………………………..       51-61

Trace Metals Analysis of Soil and Water Samples from a Limestone-

Mining Site in Sokoto state Nigeria

Itumoh, Emeka J.; Izuagie, Thompson.; Omaka, Ndukaku O.; Uba, Ahmad; Shuaibu, Malami;

Dogonyaro, Ismaila. A.; Isah, Abdullahi.; Dange, Attahiru. U. and Isah, Saidu I.…………………       62-71

Analytical Study of Local Potash around Yola Metropolis of Adamawa

State

M. H. Shagal……………………………………………………………………………………………           72-76