ISSN: 1817-2695

Volume 37, Issue 1

Volume 37, Issue 1, Winter 2011, Page 1-53

Experimental study of tractor noise effects on human being heath

Maher Abdullah Khalid; Ali Abd Al-majeed alwan

Journal of Basrah Researches (Sciences), Volume 37, Issue 1, Pages 1-9

An experimental study of the noise effects of tractors on the workers and the students health have been held . The study took place near the agriculture college buildings by using tractor type Anter-71 for different tractor speeds, engine speed and blowing depth. It was shown that the sound level when moving near the buildings was up to 108 dB which is not the conveniencet level for students scientific performance while this level of sound will decrease to 88dB when training in the open farms away from the buildings. The blowing depth has an effect on the sound level up to 112 dB which is not convenient for normal hearing and becomes more dangerous when working for along time. Blowing with the wind direction eliminates about 20% of the sound level compared with blowing in reverse wind direction.

Study of Gypsum Content of Soils at Selected Sites in Basrah Governorate South of Iraq, for Engineering Purposes

Raid A. Mahmood; Abdulmuttalib H. Al-Marsomy; Anis A. Mohammedali

Journal of Basrah Researches (Sciences), Volume 37, Issue 1, Pages 10-21

This study show the gypsum content and the distribution of gypsiferous soils in surface soils at some regions in eastern part and the neighborhood regions of the western part in Basrah Governorate south of Iraq, their sources and the geological factors effect that. Results show different gypsum content at the different regions of the governorate. Soils in the eastern part have gypsum content range between 0.3-6.19 %,and between 11.3-33.88 % at the western part which effect the stability of engineering projects. Sites of projects need intensive geotechnical investigations to detect the horizontal and vertical content of gypsum and the engineering improvement for the sites to prevent dangerous of settlement and collapse.

Antibacterial Activity of some Cyanobacteria in Basrah Governorate

Ali A.Shareef; Amin A.A.AL-Salami

Journal of Basrah Researches (Sciences), Volume 37, Issue 1, Pages 22-32

Six species of cyanobacteria: Chroococcus limneticus , Microcystis aeruginosa , Merismopedia Trolleri , Oscillatoria sp., Anabaena cylinderica and Tolypothrix nodosa. were isolated from different locations in Basrah.Hexane, chloroform, methanol extracts of those species were tested to detect their ability on growth inhibit of some representatives of Gram-negative and Gram-positive bacteria. Methanol extracts of T.nodosa showed higher inhibitory effect, whereas hexane extracts of M. Trolleri , Oscillatoria sp. showed moderate antibacterial activity. Chloroform extracts present the lowest antibacterial activity of A. cylindrical .Methanol extract of T. nodosa was selected for the identification of bioactive compounds depending on the bioactive compounds tests and spectroscopic analyses including: Infrared (IR); Nuclear Magnetic Resonance spectroscopy (NMR); and Gas Chromatography/ Mass spectrum (GC/MS) the. Results indicate that one compound is a nucleoside which is derivative of tubercidin .

Quality of water for irrigation in Fao, Basra government /Iraq

Saleh M. Kareem; Wesal F. Hassan; Dounia K.Kassaf

Journal of Basrah Researches (Sciences), Volume 37, Issue 1, Pages 33-41

This study has been conducted to evaluate the quality of irrigation water and its effect on agriculture
land in fao south of Basra. The Results showed that the salinity range 5.95 - 34.50 dS.m-1 and 15.65 - 45.30
dS.m-1 during summer and winter respectively. Where as the salinity of soil ranged 2.85 to 8.85 dS.m-1. It is
clearly indicated that the water quality was not recommended to use for irrigating agriculture land of Fao.
The soil, in the study area, has a good property as agriculture land. But they preserve their properties after
irrigation with this water which could be affected by irrigation and derange way which depends on the tidal phenomenon .

The Effect of industrial effluents polluting water near their discharging in Basrah Governorate /Iraq

Wesal F. Hassan; Iqbal F. Hassan; Ahmed Hanoon Jasim

Journal of Basrah Researches (Sciences), Volume 37, Issue 1, Pages 42-53

Six stations had been chosen to collect water samples these industrial statisis in this study were paper factory, Al-Harth Electric Station and Al-NAjebiah Electric Station on Shatt Al-Arab. On other side, the fertilizer factory and petrochemicals companex throw their discharges in Shatt Al-Basra canal. The water samples were collected from the river near the discharge point of these factories, The sampling was carried out during months 2006 to 2007. The results showed that there were about 4679.48, 3470.99, 2.60, 0.76,70.07,14274 and 690.71 ton.year-1 of Cl , SO4 , PO4,NO3 , Oil , TDS and TSS and respectively added to Shatt Al-Arab River represent 47% - 99% of these discharge coming from the paper factory compared with Al-Harth Electric Station and Al-NAjebiah, and there were 12026.16,11335.94,34.52,1.14,32875.37,35525 and 8262.15 ton.year-1 of the above parameter added to Shatt Al Basrah canal , most of them coming from the discharge of fertilizer and petrochemicals factories .