Digital Commons Network^™

Study The Effects Of Nuclear Correlations And Tensor Forces On The Nuclear Structure Of The 10B Nucleus, Farah Faris Kaddoori

Baghdad Science Journal

A detailed theoretical investigation of nuclear transition charge densities is carried out for the odd–odd nucleus ¹⁰B, with particular emphasis on collective dynamics and short-range nucleon–nucleon correlations. Longitudinal C2 form factors for inelastic electron scattering are evaluated for several excited nuclear states. The transition charge density is expressed as a superposition of the shell-model contribution and a core-polarization term arising from collective nuclear dynamics. The latter is evaluated within the Tassie collective model using correlated ground-state two-body charge-density distributions (2BCDDs). These correlated densities are derived using the nuclear contact formalism, incorporating short-range central correlations and tensor-force effects from realistic …

A Numerical Solution Of Parabolic Integro-Differential Equations Using The Left Rectangular Rule, Ali Kamil Al-Abadi, Shurooq Kamel Abd

Baghdad Science Journal

This study presents a numerical technique for addressing parabolic integro-differential equations encountered in various scientific and engineering domains. The backward Euler method for temporal discretization with the left rectangular rule for estimating the memory integral term, is integrated into this proposed method. The semi-discrete and fully discrete formulations of the problem are used to obtain a finite element framework. To evaluate the accuracy of the numerical approximation, the mathematical formulation is established, and error estimates are analyzed. Numerous numerical experiments are conducted and juxtaposed with established exact solutions to assess the efficacy of the proposed method. The results show that …

Correlation Between Gas Mixing Ratio And Functional Properties Of Sputtered Zinc Oxide Nanostructures For Uv-Induced Antibacterial Applications, Mohanad A. Aswad, Firas J. Kadhim

Baghdad Science Journal

Zinc oxide (ZnO) nanostructures were synthesized using reactive DC magnetron sputtering, and their structural, optical, morphological, and antibacterial properties were systematically investigated. X-ray diffraction analysis confirmed the formation of single-phase hexagonal wurtzite ZnO crystals with high crystallinity. The average crystallite size was estimated using the Scherrer equation. Field emission scanning electron microscopy analysis showed that the gas mixing ratio plays a key role in morphology control, with dominant particle sizes ranging from 40 to 50 nm across all tested ZnO samples. Energy-dispersive X-ray spectroscopy confirmed the high degree of purity of the synthesized ZnO nanostructures and showed Zn and O …

I-V Characteristics Of Corona Discharge Of The Upper-Lower Electrode Arrangement, Asep Yoyo Wardaya, Zaenul Muhlisin, Isnain Gunadi, Pandji Triadyaksa, Muhammad Nur, Susilo Hadi

Baghdad Science Journal

Corona discharge characterization is essential for industrial plasma devices such as electrostatic precipitators, where effective sharp electrode configurations can generate high discharge currents at relatively low potential differences efficiently and measurably. This study aims to determine the characteristic equation of the current-voltage (I-V) curve for DC corona plasma with both electrodes sharp, which represents the optimal condition for producing corona discharge. A geometric approach based on modified capacitance by introducing a current multiplier factor (k) on the sharp electrode surface is implemented. Corona discharge is assumed to depend on the maximum local electric field at the electrode tip, while k …

Novel Solitary Wave Solutions And Stability Analysis Of The Generalized (3+1)-Dimensional Chaffee–Infante Equation, Mostafa M. A. Khater

Baghdad Science Journal

The generalized (3+1)-dimensional Chaffee–Infante equation, a nonlinear evolution equation with dispersive, dissipative and nonlinear effects, is considered a member of the class of reaction–diffusion models. Applying the Khater III method, we obtain seventeen exact analytical solutions of hyperbolic, trigonometric and rational function forms. The accuracy of these solutions is verified by comparison with the numerical simulations obtained by He's variational iteration method. The satisfactory consistency at absolute error levels less than 10^ - 9 supports the reliability of the analytical results. The analysis shows different dynamical patterns: solitary waves, periodic structures and singular wave profiles and studies their stability properties …

Sex-Based Differences In Gastroduodenal Artery Morphometry, Morgan W. Stewart, Jenna M. Watts, Vincent J. Schmidt, Simran Aulakh, Cameron T. Smith, Forrest Dunivin, Julia Kirkland, Melissa Zolnierz

Student Publications

Introduction: The gastroduodenal artery (GDA) supplies the upper gastrointestinal tract, and variation in its geometry may influence endovascular access and hepatobiliary interventions. This study evaluated sex-based differences in the GDA branching angle and diameter using standardized morphometric analysis.

Methods: This retrospective cadaveric morphometric study included 28 formalin-embalmed donors (12 males and 16 females) examined between 2024 and 2025. Inclusion criteria required an intact GDA and common hepatic artery suitable for analysis. Following targeted vessel dissection, perpendicular images were obtained with in-plane calibration and analyzed using ImageJ (National Institutes of Health, Bethesda, MD, USA). Branching angle and mid-segment diameter were measured …

Rapid Determination Of 81 Illegal Weight Loss Additives In Tablet Candy By Ultra-Performance Liquid Chromatography-Tandem Mass Spectrometry, Li Hongli, Su Min, Wu Yanlei, Zhang Mian, Wang Yuqi, Zhou Chunjie, Tao Juan

Food and Machinery

[Objective] To establish a rapid detection method for 81 illegal weight loss additives in tablet candy using ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS). [Methods] Samples were ultrasonically extracted with 80% methanol-water (containing 0.1% formic acid), separated on a Waters ACQUITY UPLC HSS T3 column, and eluted with a gradient of methanol and 0.1% formic acid water solution. Detection was performed using multiple reaction monitoring (MRM) with simultaneous scanning in positive and negative electrospray ionization modes, and quantification was carried out using the external standard method. [Results] The 81 target analytes showed good linear relationships within their respective mass concentration ranges, …

Preparation Process , Antioxidant Activity , And Fruit Preservation Application Of Polygonatum Sibiricum Polysaccharides With Low Relative Molecular Mass, Hu Chengzhi, Ma Yanli, Shen Qingshan, Li Mengna, Li Mi, Fei Peng

Food and Machinery

[Objective] To compare the effects of four pretreatment methods—hot pressing (HP), steam explosion (SE), ultrasound (US), and solid-state fermentation (SF)—on the structural characteristics and antioxidant activities of Polygonatum sibiricum polysaccharides (PSP), and to explore the potential application of PSP in fruit preservation. [Methods] Ten PSP samples are prepared. The yield, relative molecular mass, functional groups, thermal stability, surface morphology, and DPPH·, ABTS·, and OH· free radical scavenging abilities of the samples are determined. The PSP sample with low relative molecular mass obtained by SE treatment is loaded with Zn2+ to prepare a sprayable hydrogel, which is then applied in the …

Study On Preparation And Emulsification Properties Of Distillers Dried Grains With Solubles Arabinoxylan Hydrolysate/Soy Protein Isolate Complex, Yu Shuo, Guo Qingbin, Zhao Shudi, Li Zhenjing, Jia Xing, Kang Ji

Food and Machinery

[Objective] To expand the application fields of distillers dried grains with solubles and improve its market value. [Methods] Arabinoxylan (AX) was extracted from distillers dried grains with solubles and modified to prepare AX with different molecular structures. AX was then reacted with soy protein isolate (SPI) via the Maillard reaction to prepare the AX-SPI covalent complex. The structure of the complex was characterized using circular dichroism spectroscopy, Fourier transform infrared spectroscopy, particle size, and zeta potential, and its emulsifying properties were studied. [Results] The AX-SPI covalent complex is formed by SPI and AX via the Maillard reaction, and differences in …

Effect Of Sodium Butyrate On Biofilm Formation And Virulence Of Salmonella Typhimurium, Yao Meng, Li Zhiheng, Wang Yan, Pan Wanlong, Liu Peng

Food and Machinery

[Objective] To investigate the regulatory effects of sodium butyrate on biofilm formation by Salmonella typhimurium and clarify its effects on the expression of virulence-related genes and pathogenicity under in vivo conditions. [Methods] S. typhimurium was treated with 4 mg/mL and 8 mg/mL sodium butyrate, and the effects of sodium butyrate on biofilm formation, motility, metabolic activity, and quorum sensing of the strain were detected. The expression changes of virulence genes (hilA, invF, and sipA) in sodium butyrate-treated strains were analyzed by quantitative real-time PCR. A C57BL/6 mouse infection model was established using S. typhimurium pretreated with 8 mg/mL sodium butyrate, …

Detection Of Egg Components In Food By Microfluidic Digital Pcr, Li Ben, Zhuo Yiming, Qin Jijun, Yang Lixia

Food and Machinery

[Objective] To establish a detection method for egg components in food using microfluidic digital polymerase chain reaction (PCR) technology. [Methods] Specific primers and fluorescent probes are designed based on the mitochondrial gene nicotinamide adenine dinucleotide dehydrogenase subunit 1 (ND1). Then, the reaction system and amplification conditions are optimized, and specificity and sensitivity are evaluated before being applied to actual food detection. [Results] The established method can specifically detect egg components, while no cross-reactivity is observed with other common poultry egg components, such as duck and goose eggs. The optimal annealing temperature is 56 ℃, and the optimal concentrations of primers …

Effects Of Different Extraction Methods On The Chemical Composition And Antioxidant Activity Of Guangfoshou Essential Oil, Wang Youdi, Chen Wentao, Yan Bin, Xu Shuling, Lyu Yiting, Yang Yuyan, Xu Juanjuan, Ou Xiaohua

Food and Machinery

[Objective] To comparatively evaluate the effects of three extraction methods, i.e., steam distillation (SD), enzyme-assisted steam distillation (EHSD), and ultrasound-assisted steam distillation (UASD), on the extraction efficiency, chemical composition, and bioactivity of Citrus medica L. var. sarcodactylis (Guangfoshou) essential oil. [Methods] Guangfoshou essential oil was extracted using SD, EHSD, and UASD. The chemical constituents of the essential oils were analyzed by gas chromatography-mass spectrometry (GC-MS). Cluster heatmap analysis was employed to compare differences in essential oil composition obtained by the three extraction methods. Antioxidant activity was assessed based on total antioxidant capacity, DPPH radical scavenging activity, and hydroxyl radical scavenging …

Rationale, Key Issues, And Pathways For China’S Polar Fisheries Development, Yichong Dong, Chuwei Wang, Jingmei Li

Bulletin of Chinese Academy of Sciences (Chinese Version)

Polar fisheries are a strategic issue that requires forward-looking planning for China’s efforts to build a strong maritime country and participate in global ocean governance. This study examines the roles of polar fisheries in relation to climate change, the greater food approach, safeguarding maritime rights and interests, and the transformation of marine fisheries, and explains the rationale for China’s polar fisheries development. It argues that China still faces weaknesses in key areas, including scientific evidence generation, equipment and technological support, whole-industry-chain coordination, and the design of institutional solutions. Accordingly, the study proposes pathways for polar fisheries development, including building a …

Designing A Technology-Enhanced Curriculum For Preservice Mathematics Teachers: A Practice-Based Reflection, Alaa Karem Abd-El-Hafez

International Journal of Transformative Teaching and Learning in Higher Education

Preparing preservice secondary mathematics teachers in a post-pandemic, AI-driven digital landscape presents unique pedagogical challenges. As a teacher educator and former secondary mathematics teacher, I aim for preservice candidates to harness technology as a vehicle for high-leverage, evidence-based teaching strategies while prioritizing software accessibility and affordability. This practice-based article details the comprehensive redesign of a technology in mathematics education course structured around five modular units and three project-based assessments. Guided by the Technological Pedagogical Content Knowledge (TPACK) framework, I articulate the rationale for tool selection, instructional design decisions, and assessment strategies. Ultimately, this course model offers higher education programs an …

Multi-Agent Orchestration Engine For Synchronized Generative Dialogue And Kinematics, Allison Garcia, Corbin Cunningham, Mike Dory

Defensive Publications Series

Creating coordinated interactions for multi-agent systems, such as physical robots or virtual characters, can present challenges in synchronizing expressive dialogue with coherent physical actions and adapting to unscripted events. The disclosed technology describes a multi-agent orchestration engine with a decoupled architecture that can employ a tiered timeline system to manage a global narrative and individual agent states. A dynamic interruption handler can leverage a large language model to reason about real-time inputs and determine if an agent should deviate from a scripted path. The engine can then generate synchronized dialogue and high level behavioral tokens, which may be subsequently translated …

Integrated Assessment Of Groundwater Quality And Human Health Risks In A Semiarid Region Of Kemaliye (Türkiye), Veli̇ Keski̇n, Celaletti̇n Şi̇mşek

Turkish Journal of Earth Sciences

In this study, the hydrochemical characteristics, drinking water suitability, and potential human health risks of groundwater in the Karapınar region (Kemaliye, Erzincan, Türkiye), which has become a critical drinking water resource due to drought associated with climate change and the depletion of surface water resources, were investigated using an integrated multiparameter approach. Within the scope of the study, a total of 18 water samples, comprising 13 spring water samples and 5 groundwater samples obtained from wells, were collected during the dry season (October 2021) and analyzed for major ions, physicochemical parameters, nitrate, and trace elements. The suitability of the samples …

States’ Rights, Forever (Chemicals): The Necessity Of A State-Level Liability And Remediation Statute To Address The Pfas Crisis, Adam Luban

Public Interest Law Journal

No abstract provided.

Signals In The Ionosphere Ahead Of Tsunami Arrival, Svetlana Riabova, Sergey Shalimov

Turkish Journal of Earth Sciences

We consider the impact of the tsunami propagating after the earthquake in Tohoku on the ionosphere according to measurements from the Hawaiian Islands, i.e., at a fairly large distance from the epicenter of the earthquake. These measurements, taken at a tidal tsunami monitoring station, at a magnetometric station, and by GPS, were used to record the arrival of the tsunami. We experimentally establish that the arrival of atmospheric waves generated by the tsunami significantly advanced the arrival of sea waves at the observation point, and this advance from one source was recorded in both the lower and upper ionosphere. Attention …

Paleoecology Of Loftusia Species (Large Benthic Foraminifera) In The Zagros Basin, North Of The Neotethys, Hossein Ghanbarloo, Amrollah Safari

Turkish Journal of Earth Sciences

Paleoecological analyses based on the wall structure of the genus Loftusia were carried out in the Maastrichtian deposits of seven outcrops of the Zagros Basin. Two types of particles are present within the wall structure: (1) tiny fossil grains and (2) detrital grains. Tiny fossil grains consist of smaller foraminifera and other small microorganism tests. Foraminiferal tests are associated with miliolid, textulariid, and rotaliid forms. Detrital grains include intraclasts and extraclasts. The presence of different particles in the test wall of this genus and the abundance of this genus in nutrient-rich conditions indicate that Loftusia are probably opportunistic foraminifera. This …

Study Of Tissue Granzyme A & B And Their Relationship To Some Pro-Inflammatory Cytokines In Iraqi Patients With Ulcerative Colitis, Braihan Hamdi Hameed, Summer Saad Abdalhusian, Naser Elias Khudhur, Ekhlas Saddam Falih

Baghdad Science Journal

Ulcerative colitis (UC) is an idiopathic inflammatory disorder of the colon and the most prevalent form of inflammatory bowel disease (IBD) worldwide. Cytotoxic T cells are one of the most important cells in the immunopathogenesis of IBD. These cells produce serine protease granzymes that initiate an apoptotic cascade that may contribute to intestinal tissue damage in IBD. Therefore, this study aimed to evaluate the tissue mRNA expression and serum levels of Granzyme A and Granzyme B in UC patients and to investigate their association with the proinflammatory cytokines IL-1β and Oncostatin M. A total of 80 Iraqi individuals were …

Optimization Of Methane Production From Poultry Slaughterhouse Wastewater With Hydraulic Retention Time And Biochar Addition Using Response Surface Methodology, Juniarti Manova Hasibuan, Rita Purwasih, Bambang Haryanto, Dessy Ariyanti, Alfian Destomo, Agung Purnomoadi, Sutaryo Sutaryo

Baghdad Science Journal

Processing poultry slaughterhouse wastewater as a biogas substrate is a sustainable solution. The current study aimed to optimize methane production from poultry slaughterhouse wastewater at various hydraulic retention times, biochar addition levels, and biochar addition types. Optimization of the anaerobic digestion process was determined through response surface methodology with central composite design. The input variables were hydraulic retention times (10, 20, and 30 days), biochar levels (5, 10, and 15 g/L), and biochar types (chicken litter and rice straw). Meanwhile, the response variable was methane production. The results revealed that the resulting central composite design model was significant (p < 0.05) with an R-squared of 0.94, indicating a high model suitability. The analysis of variance showed that hydraulic retention times, biochar levels, and biochar types significantly affected methane production (p < 0.05). Based on optimization, the highest methane production was achieved at a 30-day hydraulic retention times, a biochar level of 15 g/L, and a biochar type of rice straw, which was 473.00 mL/g volatile solid. These results emphasize the importance of determining the correct hydraulic retention times and biochar addition (level and type) to optimize methane production.

Levels, Human Exposure And Health Risk Assessment Of Heavy Metals In Indoor And Outdoor Dust From Basra, Iraq, Mohammed A. Al-Hilfi, Layla Salih Al-Omran, Adil A. Al-Fregi

Baghdad Science Journal

This study determined the levels and distribution patterns of Pb, Cd, Co, Cu, Ni, and Zn in indoor (n = 22) and outdoor (n = 22) dust from Basra, Iraq, and evaluated the associated human health risks. The total mean concentration of ∑ ₆HMs was 247 mg/kg in the indoor dust and 285 mg/kg in the outdoor dust. Zn was the dominant metal in both environments, with mean concentrations of 155 and 161 mg/kg, contributing 63% and 56% of the total metal burden, respectively. Pb, Cd, Co, and Ni concentrations were significantly higher (p < 0.05) in outdoor dust, indicating the influence of outdoor emission sources. Human exposure assessment showed that the average daily doses (ADD) for children through ingestion, inhalation, and dermal contact were approximately 9.3-fold higher than those for adults across all metals. Zn exposure reached 1.99 × 10^-3 and 2.13 × …

"Nature's Masterpiece Of Power: A Historical Synopsis Of Muscle Shoals, Alabama In The Tennessee Valley", William Lindsey Mcdonald

Research Articles

The article presents a brief history of the establishment of the city of Muscle Shoals, Alabama in the Tennessee River Valley. The text is organized by headings as follows:

• The Indians, pg. 1
• Keeping the Settlers Out, pg. 2
• The First Whites, pg. 2
• Trails That Blazed the Wilderness, pg. 3
• Giants in the Valley, pg. 4
• Organization and Development, pg. 6
• The Green Decades, pg. 7
• The Turning Wheels, pg. 8
• The War, pg. 8
• Cutthroats, pg. 9
• Hard Years, pg. 10
• Excitement and Prosperity, pg. 11
• On the Way to Tatham's Declaration, pg. 12
• Fulfilled at Last, pg. …

Mass Transfer Control In Chitosan-Based Hybrid Material Incorporating Pyromellitic Dianhydride And Copper Oxide Nanoparticles: Intraparticle Diffusion And Boyd Model Analysis, Arwa Raad Ibrahim, Basma A. Abdul Majeed, Sanaa A. Al-Sahib

Baghdad Science Journal

The accelerated development of new technologies for treating pollutants has led to the emergence of numerous innovative adsorbents. These materials typically possess promising structural and surface properties suitable for a variety of applications. In the same context, the present study prepared a chitosan-based hybrid material incorporating pyromellitic dianhydride and copper oxide nanoparticles (PMDA-Cts-CuO) under ultrasonic wave conditions. It is a newly synthesized material derived from an organically degradable source for lead removal purposes. Following the confirmation of the material's structural and morphological properties, the current research effort focused on examining the PMDA-Cts-CuO for diffusion kinetic models: the intraparticle diffusion model, …

Surface Wave Propagation At The Interface Between An Inviscid Liquid Layer And A Rotating Micropolar Elastic Solid With Stretch, Somaiah Kamidi, Narsimharao Kandula, Venkateswara Rao Burugu, Gaddam Rajkumar, Srinivas Remidi

Baghdad Science Journal

This article investigates the impact of angular rotation on surface-wave propagation at the interface between an inviscid liquid layer and a rotating micropolar elastic solid with stretch. The surface-wave secular equation is obtained analytically using the plane-harmonic solution method after the mathematical model has been developed. It is noticed that for symmetric modes of surface waves, the liquid effects and the micro-stretch do not manifest simultaneously. Using MATLAB software, the impacts of the solid's angular rotation and the liquid layer's thickness on the symmetric mode of surface waves are illustrated for a specific model. The velocity of surface waves at …

Integrated Application Of Hydrogen Sulphide And Gibberellic Acid Enhances Salinity Stress Tolerance In Wheat (Triticum Aestivum L.), Houneida Attia, Khalid H. Alamer

Baghdad Science Journal

This study investigated the role of exogenously applied hydrogen sulfide (HS; 50 μM) and gibberellic acid (GA; 200 mg L¹) in alleviating salt stress (100 mM NaCl) in wheat. The applied HS and GA significantly improved plant height, biomass, chlorophyll and carotenoids, with the highest enhancement under their combined application. Salt stress markedly increased hydrogen peroxide, methylglyoxal, lipid peroxidation, lipoxygenase and NADPH oxidase, whereas HS and GA treatment reduced these effects. Both HS and GA further enhanced proline and sugar accumulation, increased γ -glutamyl kinase activity, and decreased proline oxidase. Activities of antioxidant enzymes and the glyoxalase …

Expression Of Some Tumor Immune Microenvironment Markers In Papillary Thyroid Carcinoma With And Without Hashimoto's Thyroiditis, Aqeel Abbas Alo, Dildar Haji Musa, Intisar Salim Pity

Baghdad Science Journal

Papillary thyroid carcinoma is the most common type of thyroid cancer, and its development has been increasingly associated with the tumor immune microenvironment. The objective of this study was to evaluate the expression of FOXP3+ regulatory T cells, CD8+ cytotoxic T lymphocytes, and CD138+ plasma cells in papillary thyroid carcinoma, and their correlation with clinicopathological parameters and their relation to Hashimoto's thyroiditis. 44 of papillary thyroid carcinoma cases were retrieved from archives; 25 patients had multinodular goitre, and 19 patients had Hashimoto's thyroiditis. Clinical and pathological data were collected from patient files, archival data, and relevant histopathological reports. These were …

The Use Of Schanginia Arbuscula Seeds As An Adsorbent For The Removal Of Congo Red And Eosin-Y Dyes, Ali K. Al-Muttairi

Baghdad Science Journal

Water is a crucial element for human prosperity, and maintaining clean and safe water is crucial for survival, and due to the continuous human activities, the water is being drastically polluted. These pollutants require treatment to reduce or remove them, and from the different types of water treatment methods, adsorption is considered a fast, affordable, and easy to apply method. In this study, the ability of Schanginia arbuscula seeds as an adsorbent to remove two dyes, which are congo red (C.R.) dye and eosin Y (E.Y.) dye was tested, at first, the characterization of the adsorbent was studied by using …

Quantum Chemical Calculations On The Inhibition Of Mild Steel Corrosion In Acidic Medium Using Phenylpropanoids Of Alpinia Galanga, Maimoonah Khalid Qasim

Baghdad Science Journal

Mild steel protection against acid-related degradation requires corrosion inhibition methods as its primary safeguarding approach. The study evaluated phenylpropanoid compounds of Alpinia galanga as corrosion inhibitors through density functional theory (DFT) calculations to determine their inhibitory effectiveness. This paper conducted studies to determine which parts of the corrosion inhibitors served as active sites while analyzing their inhibiting effects. DFT calculations helped identify the locations where inhibitors acted as active sites. The experimental results demonstrated important distinctions in the total corrosion inhibition ability between the various phenylpropanoids present in Alpinia Galanga compounds. The experimental potentiodynamic polarization tests demonstrated inhibition efficiencies (IE) …

Design, Synthesis, And Biological Evaluation Of Novel Heterocyclic Derivatives Incorporating 2-Carboxyindole Core, Aya T. Abdulameer, Sameaa J. Khammas

Baghdad Science Journal

The current research deals with 2-carboxyindole, with emphasizing their biological activities. Indole derivatives that well-known for their wide biological characteristics like anticancer, antiviral, and antibacterial activities, were modified by adding Schiff base and beta-lactam frameworks in order to boost their therapeutics prospective. The compounds have been synthesized in a series of steps, which involved Mannich reactions, aldehyde condensation, as well as beta-lactam formation with chloroacetyl chloride. TLC, FTIR, ¹H-NMR, and ¹³C-NMR spectroscopy have been employed to identify the structural details. Schiff base derivatives containing nitro (-NO₂) as well as chlorine (-Cl) substituents exhibited high antibacterial as …