Solvability of Some Types for Multi-fractional Integro-Partial Differential Equation

خلال البحث تم المناقشة وبالتفصيل قابلية الحل لبعض الأنظمة من المعادلات المتعددة التفاضلية التكاملية ذات الرتب الكسرية باستخدام مفهوم مسائل كوشي المختصرة وايضا نظرية شبه زمرة المختارة مع بعض الشروط الضرورية والكافية.In this article, the solvability of some proposal types of the multi-fractional integro-partial differential system has been discussed in details by using the concept of abstract Cauchy problem and certain semigroup operators and some necessary and sufficient conditions.

A Cross-Sectional Study of Urinary Neutrophil Gelatinase-Associated Lipocalin and its Association with Steroid Responsiveness in Iraqi Children with Idiopathic Nephrotic Syndrome

Background: Steroid-resistant nephrotic syndrome (SRNS)is associated with serious complications and financial burdens. Studies reported increased urinary neutrophil gelatinase-associated lipocalin (uNGAL) levels in children with idiopathic nephrotic syndrome (INS). Objectives: This study aimed to evaluate the uNGAL potential to distinguish SRNS from steroid-sensitive nephrotic syndrome (SSNS) in Iraqi children. Patients and Methods: Children with SRNS (n=31) and SSNS (n=32) were recruited from Babylon Hospital for Maternity and Pediatrics from March to June 2022. Patients' data included demographics, clinical characteristics, and urinary lab tests. The uNGAL concentrations were measured via a commercially available ELISA kit. Results: A significantly higher uNGAL median (p-value<0.001) was noted in the SRNS group (median [IQR] = 131.512 [30.28] ng/mL) than in the SSNS group (88.45 [41.6] ng/mL). The correlation between uNGAL levels and estimated glomerular filtration rate (eGFR) was negative (Spearman's rho coefficient = − 0.599, p<0.001). The discriminatory power ofuNGAL to discern SRNS from SSNS was significantly high (AUC=0.899, p<0.0001) with a sensitivity of 87.1% and specificity of 87.5% at an optimal cut-off value of 111.091 ng/mL. Conclusion: uNGAL is associated with a reliable discriminatory strength to distinguish, noninvasively, children with SRNS from those with SSNS.   Received: Jan. 2023 Accepted: Jul, 2023 Published: Oct.202

Identification of Paederus fuscipes (Coleoptera, Staphylinidae, Paederinae) from Iraq

Paederus fuscipes Curtis, 1826 is described and illustrated from Al-Smawa province, South of Iraq, as well as, important taxonomic characters are illustrated. This document was written to aid in the identification of this species because of the significance of these insects in medicine and the dearth of diagnostic knowledge among agricultural workers

Proton pump inhibitor vs histamine 2 receptor antagonists for prophylaxis of stress ulcer in critically ill patients

Introduction: stress ulcer is one of the serious complications in critically ill patients admitted to intensive care unit and associated with increase in mortality rate among them, proton pump inhibitor and histamine 2 receptor antagonist have been widely used as stress ulcer prophylaxis (SUP) in critically ill patients, however its efficacy and safety remain unclear. This study aimed to assess the efficacy of SUP on clinical outcomes in critically ill patients. Aim of study: To compare between proton pump inhibitors and histamine 2 receptor antagonists in prevention of stress ulcer. Material and method: We do a single, blind, randomized trial on two hundred critically ill patients admitted to intensive care unit divided into two groups, group A took famotidine 40mg single daily enterally and group B took omeprazole 40mg single daily intravenously. Results: Statistically there is no difference in incidence of stress ulcer among the two group of patients with P value of 0.25. Conclusion: The use of histamine 2 receptor antagonist is equal to proton pump inhibitor in prevention of stress ulcer and associated with less side effect than proton pump inhibito

Optimizing fluid parameters of heat transfer and velocity of aluminum oxide nanoparticles and SWCNT passing through blades using RSM statistical method

This paper explores how the temperature and velocity change in a specific direction and the rotational velocity when nanofluids flow through triangular, rectangular, and chamfer baffles. The novelty of this article is to study and investigate the thermal and fluidic parameters of the velocity gradient and heat transferred between aluminum oxide and SWCNT nanofluids on the tensile surface. This study aims to increase the heat transfer coefficient by installing blades with different shapes. The Finite Element Method is chosen to solve the main equations. This paper utilized the RSM method to optimize the velocity of nanofluid and heat transfer as it passes through the stretching sheet. The main goal of this study mentioned in the article is to explore the impact of various vane shapes installed on the outer surface of a stretched sheet. To summarize, after analyzing the flow of SWCNT and Al2O3 nanofluids on various baffles and blades, it was found that the temperature of SWCNT nanofluid around the baffles was higher compared to the temperature of Al2O3 nanofluids. According to the results from the graphs of how fast something is turning and the factors that transfer heat in the software called Design-Expert, the best improvement happened when the velocity and temperature of the small particles in the liquid were at u = 1.12, and T = 20.18 and the turning velocity was N = 137.29

Epoxidized Palm Oil Plasticized Polycaprolactone Nanocomposites Preparation

As alternatives to petroleum-based polymeric materials, biodegradable polymers, such as polycaprolactone has attracted a lot of attention in the scientific community due to a rapid growth of intensive interest in the global environment. Chalcone, hexadecylamine and tetradecylamine were used as one of the organic compounds to modify natural montmorillonite clay. The clay modification was carried out by stirring the clay particles in an aqueous solution of chalcone-montmorillonite, hexadecylamine-montmorillonite and tetradecylamine-montmorillonite increasing from 1.29 to 1.53, 1.59 and 1.79 nm, respectively. The modified clay was then used in the preparation of the polycaprolactone/epoxidized palm oil blend nanocomposites. They were prepared by incorporating 0.5-5% of chalcone-montmorillonite, hexadecylamine-montmorillonite and tetradecylamine-montmorillonite. The interaction of the modifier in the clay layer was characterized by X-ray diffraction and transmission electron microscopy. The nanocomposites were synthesized by solution casting of the modified clay and a polycaprolactone/epoxidized palm oil blend at the weight ratio of 80/20, which had the highest increase in the tensile strength of the blend. The X-ray diffraction and transmission electron microscopy results confirmed the production of nanocomposites. The results also showed higher thermal stability for nanocomposites compared to those of the polycaprolactone/epoxidized palm oil blend

Palmitic acid-based amide as a corrosion inhibitor for mild steel in 1M HCl

Due to growing environmental concerns and regulations limiting the use of harmful and toxic synthetic corrosion inhibitors, there is a high demand for sustainable corrosion inhibitors. In this study, a green and rapid technique was used to synthesize amide N-(4-aminobutyl)palmitamide (BAPA) which yielded 91.17% of the product within 2 min, compared to a low yield of 75–80% and a very long 8–10 h reaction time with the conventional thermal condensation method. The chemical structure of BAPA was analyzed by FT-IR, 1HNMR and 13CNMR spectra, as well as CHNS elemental analysis. When applied to mild steel exposed to 1 M HCl, BAPA delayed and reduced corrosion by adsorbing to the steel surface to form a protective layer. The inhibition efficiency increased with increasing amide concentration, and maximal inhibition of 91.5% was observed at 0.5 mM BAPA. The adsorption of BAPA on mild steel in an acidic solution was studied and inhibition performance was correlated with the calculated adsorption-free energy ΔGads, indicating good agreement between the experimental and adsorption findings. Surface morphology of untreated and treated mild steel coupons was evaluated by SEM, and based on density functional theory (DFT) computations and atomic charges analysis, a stronger interaction was observed between BAPA and mild steel surface leading to the formation of a compact protective film on the metallic surface. This protective film is attributed to the presence of nitrogen atoms and carbonyl group in the chemical structure of BAPA