M.Sc.

A total of 57 samples were collected from different environments (soil, water, and sewage samples) from different locations in Baghdad governorate. The total isolates obtained from these samples were 30 isolates, 15 of them were identified as Serratia spp according to cultural and morphological characteristics. Biochemical tests were carried out on these 15 isolates. Results showed that 5 of these isolates were identified as Serratia marcescens.

Aqueous and methanolic extracts of dried aerial parts of Hibiscus sabdariffa and Harpagophytum procumbens were tested for their antimicrobial and curing activity against two microorganisms Escherichia coli HB 101 and Pseudomonas aeruginosa RB19 Chemical investigation on these extracts showed that Hibiscus sabdariffa methanolic extracts contain flavonoids and water extract contain glycosides and Saponins while the Harpagophytum procumbens methanolic extracts contain flavonoids and water extract contain glycosides. .

Bit Error Rate (BER) and Bit Energy to Noise Ratio performance of the 1-D RAKE receiver without , with Space Time Transmit Diversity (STTD) and 2-D RAKE without , with (STTD) and also without and with beamforming for WCDMA over Rayleigh Channel in presence of Additive White Gaussian Noise (AWGN) channel is demonstrated with purpose of making simulation of m-files developed in Matlab.Results are evaluated in terms of BER and  considering the number of Base Station (BS) transmit antennas (1-D RAKE and 2-D RAKE receivers), and the number of RAKE fingers (1-D RAKE r