Iraq, a country in the Middle East, has suffered severe drought events in the past two decades due to a significant decrease in annual precipitation. Water storage by building dams can mitigate ...drought impacts and assure water supply. This study was designed to identify suitable sites to build new dams within the Al-Khabur River Basin (KhRB). Both the fuzzy analytic hierarchy process (AHP) and the weighted sum method (WSM) were used and compared to select suitable dam sites. A total of 14 layers were used as input dataset (i.e., lithology, tectonic zones, distance to active faults, distance to lineaments, soil type, land cover, hypsometry, slope gradient, average precipitation, stream width, Curve Number Grid, distance to major roads, distance to towns and cities, and distance to villages). Landsat-8/Operational Land Imager (OLI) and QuickBird optical images were used in the study. Three types of accuracies were tested: overall, suitable pixels by number, and suitable pixels by weight. Based on these criteria, we determined that 11 sites are suitable for locating dams for runoff harvesting. Results were compared to the location of 21 preselected dams proposed by the Ministry of Agricultural and Water Resources (MAWR). Three of these dam sites coincide with those proposed by the MAWR. The overall accuracies of the 11 dams ranged between 76.2% and 91.8%. The two most suitable dam sites are located in the center of the study area, with favorable geology, adequate storage capacity, and in close proximity to the population centers. Of the two selection methods, the AHP method performed better as its overall accuracy is greater than that of the WSM. We argue that when stream discharge data are not available, use of high spatial resolution QuickBird imageries to determine stream width for discharge estimation is acceptable and can be used for preliminary dam site selection. The study offers a valuable and relatively inexpensive tool to decision-makers for eliminating sites having severe limitations (less suitable sites) and focusing on those with the least restriction (more suitable sites) for dam construction.
Water quality was assessed for the main Hilla canal and three distributary channels (HC 19 at 49+243 km, HC 20 at 52+123 km, and HC 2L at 44+056 km), located in the alraarinjia of Babil, for the ...Hilla-Kifil Irrigation Project. The Canadian Water Quality Index (CWQI) is used to assess the irrigation water quality of the Hilla Main Canal and three distributary channels. Water samples were collected monthly from February to May 2021 and analyzed for electrical conductivity, pH, sodium adsorption ratio, total hardness, magnesium, sodium, and calcium, and compare with specifications. Based on the current outcomes, it was found that all the elements fall within the specifications until some tests where they were outside the specification, as in (TH). Besides, the value of CWQI (94.73%) was between good and excellent, and this indicates that the water is appropriate for irrigation purposes in that area. The findings of the current studies, in comparison with previous studies on the one hand and the standard specifications on the other, proved the effectiveness of the indicator and the accuracy of its results. This means, The Hilla Main Canal and distributary channels generally have good irrigation water quality according to the CWQI, But the slight increase in total hardness requires monitoring and treatment.
Nowadays, with the increase of the demand for freshwater used to irrigate the agricultural lands, in the exchange for the severe shortage in the sources of the freshwater supply, the finding of ...alternatives becomes persistent need to compensate this shortage. One of the important alternatives is the reuse of the drainage water for irrigation. In the present study, the quality of the agricultural drainage water of the Al-Husseiniya irrigation project of Karbala governorate in Iraq is assessed and managed in order to reuse this water for irrigation. The Brazilian Water Quality Index (IWQI) model is used to evaluate the quality of the drainage water and the river water within the study area. As well, the quality of drainage water of six selected stations is improved by blending this water with the river water by using nine blending ratios. It is found that 75% of the values of the IWQI classification category of the drainage water are within the category of severe restriction, SR, and 25% of these values are within the category of high restriction, HR. Also, the results showed that the river water quality is within the IWQI category of low restriction, LR.
The present study investigates the effect of using stepped gabion weir in a laboratory channel on the distance of the hydraulic jump. A set of 25 laboratory experiments and 175 operation tests were ...conducted using a laboratory flume with dimensions 10 m long by 0.3 m wide, and 0.5 m high. The tested gabion weir had different five possible lengths 0.88 m, 0.96 m, 1.04m, 1.12 m, and 1.20 m, and the filling material used was natural quarry mono graded gravel in five different sample sizes of average equivalent diameter 11.75 mm, 16.50 mm, 22.00 mm, 31.25 mm, and 43.75 mm. Operation discharge values ranged between 0.7 to 15.0 l/s. The data set was subject to dimensional analysis to generate dimensionless groups, and correlated using the Buckingham Pi-Theorem. The results of this study showed that in case of direct representation between the parameters, the distance of hydraulic jump has a direct relationship with discharge but both the gravel sample used and the overall length of the weir give an undular behaviour with its increment. While using of dimensional representation shows that both the gravel sample and weir length have an inverse relationship with the distance of the hydraulic jump. Many trials have been made to formulate the best equation which combine the studied parameters with good agreement.
Background: Hydatidosis is caused by infection with the larval stage of the Cestode Echinococcus granulosus. Objective: In vitro quantitative evaluation of interleukin 6 (IL-6), INF-gamma (INF-γ), ...and CD4 and CD8 molecules during hydatidosis infection and control group. Materials and Methods: In vitro quantitative determination of IL-6, INF-γ, and CD4 and CD8 molecules in serum of hydatidosis-infected patients using serological test Sandwich-ELISA. Results: The result showed a significant difference in serum IL-6 in patients with hydatidosis than in the control group (38.753 ± 18.307 pg/mL) and 11.752 ± 3.328, respectively; the differences were highly significant (P < 0.0001). The mean of serum CD4 molecules concentration was 5.475 ± 2.335 (ng/mL) and 3.154 ± 1.027 (ng/mL) for controls groups with P value ≤ 0.0001, while serum concentration of soluble CD8 was 2.977 ± 1.321 (ng/mL) and 1.152 ± 0.699 (ng/mL) for control group with (P value ≤ 0.0001). The ratio of CD4/CD8 was 1.841 in hydatidosis infection patients compared with control group (2.737). Conclusion: Immunological parameters included in the present study (IL-6, IFN-γ, CD4 and CD8) showed high levels among patients with hydatidosis infection compared to healthy control.
Abstract
The increasing of temperature with reduction of rainfall in dry season led to reduce water areas which cause reduce the cultivation areas in Iraq and other countries. Effecting of drought ...causing negative action on crop productivity. The irrigation water shortage will impact on crops by stress of water as well water decreasing will increase salt concentration that will increase the salt stress cause influence on yield of crops. This research will study of stress by decreasing of water (deficit irrigation) on production of okra crops with both use subsurface water retention techniques (SWRT) and without use SWRT, then estimation differences after that calculate affection of salt on crop. The research was done in Babylon governorate in Al-Hindiya Barrage. The treatments A1 used drip irrigation system with SWRT technique and used deficit irrigation in some times, while A2 used trickle irrigation without SWRT and use deficit irrigation in some times. The results of treatment A1 showed the amount of applying water reduced to 7% than A2. Whereas the number of irrigations of A1 equal to A2. The yield of crop of A1 was more than of A2 by 15 %. The actual yield of A1 was impacted by water stress and salt were 0.01 kg/m2 and 0.011 kg/m2 respectively. The actual yield of A2 which impacted by water stress and salt were 0.079 kg/m2 and 0.085 kg/m2, respectively. The yield in A1 with SWRT and without stress and the yield of A2 without SWRT and without stress showed percent of increasing of 2.3%. The SWRT technique helps to stress resistance and drought resistance by using okra of loam soil.
Oxidative stress is one of pharmacological & toxicology mechanisms as an important pathological mechanism proposed for many diseases including cancer . Plant components that include antioxidant ...components are becoming more popular as an alternative to synthetic antioxidants because of their ability to eliminate free-radical intermediates and prevent further oxidation, Citrus genus, which belongs to the Rutaceae family, comprises among of the world's most frequently harvested crops due to its many nutritional and health advantages.
The preliminary phytochemical analysis of the prepared extract shown the presence of several constituents of citrus peels as Alkaloids, Phenolics , Flavonoids and rutin. Moreover , The result of in-vitro antioxidants activity of both citrus species showed that DPPH radical scavenging activity for peel extract demonstrate dose-dependent inhibition with IC50 was calculated (287.32 ug/ml and 341.89 µg/ml) for pomelo & orange respectively compared to IC50 value of vitamin C which was 260.06 µg/ml as standard antioxidant . in conclusion , study results showed that pomelo peel show higher antioxidant activity compared to orange moreover, citrus peel has significant antioxidant qualities and is a potentially rich source of natural antioxidants, and PPE scavenges DPPH and reactive oxygen radicals very effectively.
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