ABSTRACT Background: Polycystic ovarian syndrome (PCOS) is one of the most important reproductive and endocrine disorders in women at reproductive age. It's associated with metabolic disorder, obesity, insulin resistance and oxidative stress chronic periodontitis and PCOS both of them associated with low chronic grade of inflammation. The prevalence of periodontal disease seems to be higher in women with PCOS. Superoxide dismutase enzyme (SOD) is an important circulating marker and protecting enzyme helping the body tissues to get rid of reactive oxygen species (ROS) that damage the tissue. Aim of the study: The aim of this study was to measure and compare the levels of (SOD) among group of chronic periodontitis patients with PCOS, group of chronic periodontitis without PCOS and a third group who were systemically and periodontally healthy. Material and Method: This study consist of (60) women at reproductive age ranged between (25-40) years old. They divided into three groups Group I consist of 20 women systemically healthy and with healthy periodontium, group II consist of 20 women with chronic periodontitis and systemically healthy and Group III consist of 20 women with chronic periodontitis and (PCOS). We evaluated the periodontal health of the groups through measuring these important indices: Plaque index, gingival index, bleeding on probing, probing pocket depth and clinical attachment loss. SOD antioxidant marker was measured colormeterically for the three groups. Results: this study showed higher means of periodontal parameters (plaque index, gingival index, bleeding on probing, probing pocket depth and clinical attachment loss (1.275±0.246, 1.295±0.239, 0.24±0.16, 6.47±0.345, 4.125±0.328 respectively). Highly significant differences were found using t-test in inter group comparison. (P≤0.001) regarding pocket depth and clinical attachment loss .Higher mean of (SOD) level was found for G3 (137.72±29.769) U/mL . F-test was used for intragroup comparison and highly significant difference was found (P≤0.001). Positive but weak correlation where found among (SOD) level, bleeding on probing in Group I and Group II , also among (SOD) level, probing pocket depth and clinical attachment loss. Conclusion: (PCOS) associated with oxidative stress and more prone to periodontal diseases with high level of antioxidant agent like (SOD) level to compensate the high level of (ROS)
The paper present design of a control structure that enables integration of a Kinematic neural controller for trajectory tracking of a nonholonomic differential two wheeled mobile robot, then proposes a Kinematic neural controller to direct a National Instrument mobile robot (NI Mobile Robot). The controller is to make the actual velocity of the wheeled mobile robot close the required velocity by guarantees that the trajectory tracking mean squire error converges at minimum tracking error. The proposed tracking control system consists of two layers; The first layer is a multi-layer perceptron neural network system that controls the mobile robot to track the required path , The second layer is an optimization layer ,which is impleme
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This study discussed a biased estimator of the Negative Binomial Regression model known as (Liu Estimator), This estimate was used to reduce variance and overcome the problem Multicollinearity between explanatory variables, Some estimates were used such as Ridge Regression and Maximum Likelihood Estimators, This research aims at the theoretical comparisons between the new estimator (Liu Estimator) and the estimators
In this study, the first kind Bessel function was used to solve Kepler equation for an elliptical orbiting satellite. It is a classical method that gives a direct solution for calculation of the eccentric anomaly. It was solved for one period from (M=0-360)° with an eccentricity of (e=0-1) and the number of terms from (N=1-10). Also, the error in the representation of the first kind Bessel function was calculated. The results indicated that for eccentricity of (0.1-0.4) and (N = 1-10), the values of eccentric anomaly gave a good result as compared with the exact solution. Besides, the obtained eccentric anomaly values were unaffected by increasing the number of terms (N = 6-10) for eccentricities (0.8 and 0.9). The Bessel
... Show MoreDam operation and management have become more complex recently because of the need for considering hydraulic structure sustainability and environmental protect on. An Earthfill dam that includes a powerhouse system is considered as a significant multipurpose hydraulic structure. Understanding the effects of running hydropower plant turbines on the dam body is one of the major safety concerns for earthfill dams. In this research, dynamic analysis of earthfill dam, integrated with a hydropower plant system containing six vertical Kaplan turbines (i.e., Haditha dam), is investigated. In the first stage of the study, ANSYS-CFX was used to represent one vertical Kaplan turbine unit by designing a three-dimensional (3-D) finite element (F
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