Kirkuk Journal of Science
https://kujss.uokirkuk.edu.iq/
Kirkuk Journal of Scienceendaily1Fri, 01 Mar 2024 00:00:00 +0330Fri, 01 Mar 2024 00:00:00 +0330Existence Solutions for a Singular Nonlinear Problem with Dirichlet Boundary Conditions on Exterior Domains
https://kujss.uokirkuk.edu.iq/article_182462.html
This paper proves the existence of solutions that solve the Nonlinear Partial differential equation on the exterior of the ball centered at the origin in R^{N} with radius R &gt; 0, with boundary conditions u = 0 on the boundary, and u ( x ) approaches 0 as | x | approaches infinity. When the function is local Lipschitzian grows superlinear at infinity and singular at 0. Also N &gt; 2, f ( u ) ~ (-1 ) / ( |u| ^{q-1} u ) for small u with 0 &lt; q &lt; 1, and f ( u ) ~ | u |^{ p-1} u for large | u | with p &gt; 1. Also, K ( x ) ~ | x |^ { - ( Alpha) } with 2 &lt; Alpha &lt; 2 ( N - 1 ) for large | x |. We used the fixed point method and other techniques to prove the existence.The Effect of Changing the Weights of Zinc Oxide Nanoparticles and Weights of Sodium Chloride on Some Physical Properties of Carboxymethylcellulose Thin Films
https://kujss.uokirkuk.edu.iq/article_182467.html
The objective of this work is to improve certain physical properties of the polymer Carboxymethylcellulose (CMCHV). The samples were prepared by adding sodium chloride and Zinc oxide nanoparticles to CMCHV solutions at different weights (0.00, 0.75, 1.50, 2.25, 3.00 g).&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; When samples are exposed to heat, they do not become liquid or evaporate, but instead ignite and burn. The elasticity of the samples increased with increasing weights of the materials added to them, but the elasticity increased more with increasing weights of sodium chloride than with increasing weights of zinc oxide nanoparticles. The decrease in the transmission spectrum of the samples with increasing weights of sodium chloride and zinc oxide nanoparticles indicates that the opacity of the samples increases with increasing weights(As in the sample containing 3 grams of sodium chloride or Zinc oxide nanoparticles).Isolation of Pseudomonas Aeruginosa and Studying their Resistance and Pyocyanin Production.
https://kujss.uokirkuk.edu.iq/article_182723.html
The study included isolating and diagnosing Pseudomonas Aerugi-nosa bacteria from different clinical samples from hospitals and health&nbsp;centers: 10 wound samples, 15 burn samples, 12 ear samples (otitis media), 11 urine samples and 9 sputum samples. These samples were diagnosed using cultural and biochemical features and confirmed by using the API 20E system test. The results showed that the isolation rate of Pseudomonas Aeruginosa bacteria from burns was (26.3%) and from ears was (21%). The resistance of Pseudomonas Aeruginosa isolates to 6 types of antibiotics was tested. The highest resistance rate (29.8%) was observed against Cefazoline and Carbenicillin, followed by resistance to Cefotaxime (17.5%), then to Gentamicin (14%), followed by Ciprofloxacin and Amikacin, (5.2%) and (3.5%), respectively. The results demonstrated that 18(31.5%) of Pseudomonas Aeruginosa isolates produced the pyocyanin pigment on Nutrient agar media and 9(15.7%) of them produced the pigment on MacConkey agar, while 15(26.3%) isolates produced the pigment on Blood agar. The burn isolates were shown to produce the highest pyocyanin pigments, and nutrient agar was the highest media that produced pyocyanin.A Cross-Sectional Study to Evaluate the Link between Oxidative Stress and Increased Cardiovascular Risks in Prediabetic Patients
https://kujss.uokirkuk.edu.iq/article_182694.html
Prediabetes is associated with dysglycemia; besides progression to diabetes mellitus, prediabetic patients are at risk for cardiovascular disease (CVD). The current study is intended to evaluate the role of oxidative stress in the development of cardiovascular disease (CVD) in prediabetic patients. Therefore, the biomarkers of oxidative stress were assessed and correlated with possible cardiovascular risk factors, including body mass index (BMI), hypertension, and dyslipidemia. With a total population of 70 individuals, this descriptive study of cross-sectional design was conducted, including 40 patients with pre-diabetes and 30 subjects as the control group. Age and BMI were matched between the two groups. The concentrations of reduced glutathione (GSH), malondialdehyde (MDA), lipid profile, and fasting blood sugar (FBS) were analyzed using blood serum samples. Whereas glycated hemoglobin (HbA1c) was measured using whole blood. In comparison to controls, prediabetic patients showed a significant elevation in mean values of systolic blood pressure (SBP), body mass index (BMI), fasting blood sugar (FBG), glycated hemoglobin (HbA1c), total cholesterol (TC), triglycerides (TG), low-density lipoproteins (LDL), very-low-density lipoproteins (VLDL), and malondialdehyde (MDA), with a significant reduction in mean values of reduced glutathione (GSH) and high-density lipoproteins (HDL). Concentrations of fasting blood sugar (FBS) and glycated hemoglobin (HbA1c) recorded a remarkable positive and significant correlation with MDA and cardiovascular risk factors, and a negative and significant correlation with GSH and HDL.&nbsp;MDA recorded a substantial positive correlation with cardiovascular risk factors in prediabetic subjects, whereas GSH had a considerable negative correlation with cardiovascular risk factors. In conclusion, the findings of this study conclude that prediabetes is closely associated with elevated levels of oxidative stress biomarkers and confirm the link between oxidative stress and increased cardiovascular risks in these patients.Ground State Properties of Even-Even 30−92Ca Isotopes Using HFB Theory.
https://kujss.uokirkuk.edu.iq/article_182757.html
Ground State (GS) Properties of Even-Even isotopes have been studied in frame of Skyrme Hartree-Fock-Bogoliubov using computer program HFBTHO V3.00 with three types of Skyrme interactions (HFB9, SLY4 and SLY5). The calculated nuclear properties including (average binding energy (BE/A ), two nucleon separation energy (S2N ), two neutron shell gap ( &delta;2N), quadrupole deformation parameter (&beta;2 ), charge radii ( Rch), neutron and proton radii (RN, RP ) and skin thickness) were compared with the available experimental data and with the results of Finite Range Droplet Macroscopic method (FRDM) and Relativistic Mean Field (RMF) theory. According to Binding energy ( BE/A), it turns out that it increases directly with increase directly with the increases in neutron number until arrive its Max. value at the region between (N=20-30 ) which is due to the effect of the two magic numbers ( N=20, 28), after this region BE/A start to decrease progressively.