Misan Journal of Academic Studies

Water pollution of Tigris River in Al-Amarah region in Iraq (Ali Al-Garbi, Unified water project, Complex water project near the Islamic unity, Castle project, Uzayr project) occurs in both rural and urban areas. Drinking water from natural sources such as rivers and streams is usually polluted by organic substances from upstream users who use water for different activities. To protect the water resources from pollution and deterioration caused by natural pollutants and human activities, an environmental database was constructed and applied. A Visual Basic Software 6.0 program was constructed to evaluate the pollutant concentrations using regression models obtained by Data Fit Software program (version 8.0). The program was divided into two main parts: first gathering of general data and second calculation of the pollutant concentrations. This research covers the study and analysis of monthly water quality parameters for Tigris River at Ali Al-Garbi, Unified water project, Complex water project near the Islamic unity, Castle project and Uzayr project in Al-amarah Region for the period 2008 to 2010.

Background: The aim of study was to find out the prevalence of oral diseases and disorders in elderly patients who attending the oral diagnosis department of the College of Dentistry – Basrah University and compare it with the prevalence rates of these lesions in other parts of Iraq and other countries around the world

Five compounds have been prepared and studied ; Pyrazole ,3,5-dimethylpyrazole , 3,5-dimethyl -1 N phenyl pyrazole, 3,5-diphenylpyrazole and p-toluene sulfonyl pyrazole . Molecular orbital calculations using ab initio method / MP2 theory at 6-31G(d,p) basis set were preformed to determine the geometrical parameters, bond lengths and bond angles , were compared with x-ray analysis results. X-ray measurements showed that pyrazol exists as tautomeric mixture in the solid state , other physical properties such as total energy, dipole moments , charges on the atoms were also determined and discussed . The vibration frequencies were theoretically calculated at the same theory level for optimization and experimentally measured.

This study involve (80) female medical student, aged between(19-24) years, subdivided into three groups, control group that consist of (30) female with normal hemoglobin erythrocyte genotype(Hb AA) and two case groups, each one consist of (25) female, one with(Hb AS) and the other with(HbSS) erythrocyte genotype. In this study we tried to identify the affinity of sickle erythrocyte hemoglobin to change to methaemoglobin (MetHb) in three human erythrocyte genotypes, namely,( HbAS) and (HbSS) compared with normal genotype (HbAA) . The cyanomethaemoglobin reaction was used for the determination of erythrocyte haemolysate methaemoglobin concentration. The mean ± SD methaemoglobin concentration, expressed as percentage (MetHb%) of total Hb erythrocyte genotypes (HbAS,HbSS and HbAA). Thus, the oxidative damage of Hb diminishes among the studied genotypes in the manner: SS>AS>AA. We demonstrate a statistically significant differences (P<0.05) in MetHb% between (HbSS) and (HbAA) erythrocyte genotypes, whereas, there is no significant differences (P>0.05) in MetHb% between HbAS and HbAA erythrocyte genotypes. This results may provide further insight into the mechanism of how (MethHb)formation benefit sickle cell patients and may offer an attractive new therapeutic model for the treatment of sickle cell disease.

In this work, a linear quantitative structure–property relationship (QSPR) model is presented for the prediction of condensation temperatures of Substituted p-Xylylene Monomers. The geometries of the studies compounds were optimized first at level (MM+) by molecular mechanism force field theory and then at level (AM1) by semi- empirical theory. QSPR model includes some molecular properties, regression quality indicates that these descriptors provide valuable information and have significant role in the assessment of the condensation temperatures of Substituted p-Xylylene Monomers. This model provides good results, when the model depends on four parameters [M.W, T.E, ELEC.E and I.P], with correlation coefficient R2 = 0.961 for 8 p-Xylylene Monomers.

Simple method for determination of Pb in natural water by flame atomic absorption spectrometry (FAAS) has suggested .The calibration graph for lead was linear in the range (0.02- 0.1) µg ml-1and the detection limit was 0.4 x 10-3 µgL-1.
For the determination of microamounts of lead in natural water, an extraction technique was developed. Lead was retained as Pb-dithizone complex and extracted into carbon tetrachloride. The preconcenration, liquid – liquid extraction, optimal conditions for the extraction of lead complex were determined. The FAAS method was applied to the determination of Pb in natural water from different areas of Missan province. The obtained results demonstrated that the procedure could be successfully applied for the analysis of water samples with satisfactory accuracy.

Astudy undertaking for some physical and chemical properties for three slected station( Sdor AL-miger , district center and AL-Adiel region ) for water of AL-miger rirer in Maissan ( province ) .