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Publication Date
Thu Oct 30 2025
Journal Name
Iraqi Journal Of Science
Study the relation between luxS gene and forming biofilm and non-forming isolates of Klebsiella pneumonia
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Klebsiella pneumoniae is a notorious pathogenic bacterium, armed with multiple virulence factors, and is commonly associated with pneumonia infections. One of the virulence factors helps K. pneumonia to cause many diseases and escape immune system and antimicrobial effect is biofilm construction. Therefore, the overall aim was to investigate the genic profile for K. pneumonia that formed and non-formed biofilm. The result revealed that around half of the isolates did not form biofilm and this may because luxS gene was present in only two isolates forming biofilm and absent in others while fimH genes were absent in all other isolates. K. pneumonia isolates were sensitive to green tea,

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Publication Date
Thu Oct 30 2025
Journal Name
Iraqi Journal Of Science
Construction of a Graph of Similar Trajectories Based on the Minimum Spanning Tree (MST) and Node Similarity Function (NSF)
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In recent years, the graph-based approach has become increasingly popular for modeling real-world data because graphs represent a wide variety of data, such as social networks and trajectory mining. In this paper, we propose a Weighted Adjacency Matrix (WAM) for constructing a graph based on edges from the features of each trajectory and a vertex from the frame number. In trajectory mining, finding objects that have similar patterns of motion is a common data analysis; thus, selecting effective algorithms is necessary for grouping information and showing trajectories as graphs. A new algorithm is proposed to calculate Graph Trajectory Similarity (GTS) between two trajectories of graphs, the Nodes Similarity Function (NSF). The NSF is int

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Publication Date
Thu Oct 30 2025
Journal Name
Iraqi Journal Of Science
Synthesis, Characterization and Biological Evaluation of Polymer Nano Dimetal Oxides Derived from Poly Methylmetha Acrylate and Y2O3 \ La2O3 Prepared in Green Method
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In this work, metal oxides [Y2O3\La2O3] nanoparticles were synthesized using a green method with ashwagandha extract, which served as a reducing agent. This extract also catalyzed the polymerization of poly methylmetha acrylate, resulting in the formation of nanocomposites [PMMA\Y2O3\La2O3]. The morphology, size, and structures of the synthesized nanocomposites were determined and characterized using thermogravimetric analysis (TGA), x-ray diffraction (XRD), differential scanning calorimetry (DSC) analysis, and field emission scanning electron microscopy (FESEM), tested by antioxidant activity and antibacterial activity. To confirm the design of nanoc

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Publication Date
Thu Oct 30 2025
Journal Name
Iraqi Journal Of Science
Synthesis, Characterization and Anticancer Activity of polyester Derived from Polyvinyl Alcohol with New Oxazolidine-5-one Derivatives
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In this study, compound [A], an oxime derivative, was synthesized through the reaction of 4-aminoacetophenone with hydroxylamine hydrochloride, using sodium acetate as a catalyst. Subsequently, Schiff bases [A1-A3] were prepared by reacting compound [A] with various aromatic aldehydes in the presence of glacial acetic acid. Acid derivatives containing oxazolidinone ring [A4- A6] were synthesized from the reaction of Schiff bases [A1- A3] with chloroacetic acid. The resulting compounds [A4-A6] reacted with thionyl chloride to produce the corresponding acid chloride [A7-A9]. Polyesters [A10-A12] were produced by reacting polyvinyl alcohol with compounds [A7-A9]. All prepared compounds were characterized using infrared spectroscopy FTIR and

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Publication Date
Thu Oct 30 2025
Journal Name
Iraqi Journal Of Science
Third Order Sandwich Results for Analytic Multivalent Functions Defined by Darweesh-Atshan-Battor Operator
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In the present work, by employing the differential subordination notion and Darweesh-Atshan-Battor operator, we investigate third-order of sandwich-type theorems for the p-valent of analytic functions.

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Publication Date
Thu Oct 30 2025
Journal Name
Iraqi Journal Of Science
Numerical study of soliton generation in microresonators
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Soliton generation in microresonator is studied numerically using the Lugiato-Lefever equation (LLE). Optically induced effects, duration, and shape are studied via the adaptive split-step Fourier method (SSFM). It investigates how the microresonator affects the evolution of the optical field in cases of nonlinearity, dispersion, slow time, and fast time. A study is done on the optical frequency comb produced and the frequency domain dynamics of the microresonator. The generated soliton wave was a dispersive soliton. The study shows that the soliton generation and its properties depend strongly on the parameters included in this study.

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Publication Date
Thu Oct 30 2025
Journal Name
Iraqi Journal Of Science
Ultrastructure Study of Follicular Cells in Hypothyroidism-induced Rats Treated with Insulin-like Growth Factor-1 and Some Minerals
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The objective of this study is to examine the impact of the administration of levothyroxine (T4), insulin-like growth factor-1, zinc, selenium, and vitamin B12 for 2 months to methimazole-induced hypothyroid adult male Wistar albino eight-week-old rats weighing 180–250 gm were bought from the Ilam Lab of Animals and n=8 was for each group. The thyroid hormones, thyroid stimulating hormone, and ultrastructure of follicular cells by transmission electron microscope were compared between the control group and 7 groups of hypothyroid rats treated with T4, insulin-like growth factor-1, T4 + insulin-like growth factor-1, T4+zinc, T4+selenium, T4+ selenium, and T4+zinc +selenium + vitamin B12, respectively. The hypothyroid rats displayed a si

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Publication Date
Thu Oct 30 2025
Journal Name
Iraqi Journal Of Science
Enhancing Enterprise Performance Through Forecasting: A Deep RNN Approach
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This research explores advanced methodologies in restaurant sales forecasting, focusing on a dataset from a Middle Eastern-based chain. It integrates machine learning algorithms and recurrent neural networks (RNN), including ARIMA, SARIMA, and LSTM models, to predict future sales trends accurately. Initial analysis includes various regression models to identify optimal sales prediction models, with Random Forest emerging as the top performer with an r2_score of 0.999895. The study emphasizes the importance of accurate sales forecasting in optimizing resource allocation, inventory management, and strategic decision-making for restaurant operations. Data preprocessing techniques such as missing value handling and feature selection ensure r

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Publication Date
Thu Oct 30 2025
Journal Name
Iraqi Journal Of Science
SAR Simulation of Human Head Tissues Exposed to Mobile Radio Waves Using FDTD Method
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Increasing the exposure time of radio wave radiation to human tissues is an important factor affecting the SAR (the specific absorption rate) values. This leads to the question of whether overlapping or interfering with electromagnetic waves has a negative impact on our health. Specific absorption rates (SAR) were calculated for the multilayered model of a human head model through different exposure times (30 min, 45 min, 1 hour, 1.5 hours, and 2 hours) at radio wave frequencies of 0.9 GHz and 1.8 GHz emitted from the mobile phones with planer inverted-F antenna (PIFA) and planar monopole antenna. The electromagnetic wave equation was solved using the Finite-Difference Time-Domain Method (FDTD). Different physical phenomena (penetration

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Publication Date
Sat May 01 2021
Journal Name
Journal Of Physics: Conference Series
Study The Effect of Annealing on Structural and Optical Properties of Indium Selenide (InSe) Thin Films Prepared by Vacuum Thermal Evaporation Technique
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Abstract<p>In this work, InSe thin films were deposited on glass substrates by thermal evaporation technique with a deposit rate of (2.5∓0.2) nm/sec. The thickness of the films was around (300∓10) nm, and the thin films were annealed at (100, 200 and 300)°C. The structural, morphology, and optical properties of Indium selenide thin films were studied using X-ray diffraction, Scanning Electron Microscope and UV–Visible spectrometry respectively. X-ray diffraction analyses showed that the as deposited thin films have amorphous structures. At annealing temperature of 100°C and 200°C, the films show enhanced crystalline nature, but at 300°C the film shows a polycrystalline structure with Rhombohedral phas</p> ... Show More
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Scopus (9)
Crossref (8)
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Publication Date
Mon Aug 19 2024
Journal Name
Chalcogenide Letters
Influence of copper on zinc oxide films and solar cell performance
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Copper doped Zinc oxide and (n-ZnO / p-Si and n-ZnO: Cu / p-Si) thin films thru thickness (400±20) nm were deposited by thermal evaporation technique onto two substrates. The influence of different Cu percentages (1%,3% and 5%) on ZnO thin film besides hetero junction (ZnO / Si) characteristics were investigated, with X-ray diffractions examination supports ZnO films were poly crystal then hexagonal structural per crystallite size increase from (22.34 to 28.09) nm with increasing Cu ratio. The optical properties display exceptional optically absorptive for 5% Cu dopant with reduced for optically gaps since 3.1 toward 2.7 eV. Hall Effect measurements presented with all films prepared pure and doped have n-types conductive, with a ma

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Scopus Clarivate Crossref
Publication Date
Sun Jun 01 2025
Journal Name
Chalcogenide Letters
Fabrication and characterization of Se66S44-xAsx thin films chalcogenide
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In this paper, the effect of sulfur substitution by arsenic on the structural, optical properties of thin films of the trivalent chalcogenide Se66S44-xAsx at different concentrations (where x = 0, 8, 16, and 24 at %) was studied. Thin films with a thickness of (300±10 nm) were prepared using thermal evaporation of bulk samples. Structural examinations were performed using XRD and AFM techniques. All the studied film samples were amorphous in structure and the intensity of the crystalline parts was high in the range of 10-40. Also, in Atomic Force Microscopy (AFM). It was found that increasing the concentration of arsenic affects the structural parameters such as surface roughness, particle density, and average grain size. As the ar

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Scopus Clarivate Crossref
Publication Date
Sun Jun 01 2025
Journal Name
Journal Of Physics: Conference Series
Determination of Radioactivity Levels in Some Rice Samples available in the Iraqi Markets Using the system of High-purity Germanium
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Abstract<p>This study aimed to determine the radioactivity and radiation hazard indicators of rice samples potentially for human consumption. Gamma spectroscopy was used to calculate the specific activity of natural and artificial radionuclides (<sup>238</sup>U, <sup>232</sup>Th, <sup>40</sup>K, and <sup>137</sup>Cs) in local and imported rice samples collected from local markets in Baghdad Governorate, Iraq, in addition to various radiological hazard indices. The radionuclide concentrations in the samples varied from 2.123 ± 1.457 Bq/kg to 13.032 ± 3.610 Bq/kg for <sup>238</sup>U, 2.906 ± 1.705 Bq/kg to 17.290 ± 4.158 Bq/kg for <sup>232</sup></p> ... Show More
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