Determination of Trace Rare Earth Elements in Tungsten-Molybdenum Ore by Inductively Coupled Plasma-Mass Spectrometry with Microwave Digestion System by Junfei CAO, Ting WANG, Jian LI, Ying LI

“…During the pretreatment of tungsten and molybdenum ore samples, the alkali melting flux will introduce the salt matrix, and the tungsten and molybdenum elements in an acid dissolution condition are easy to hydrolyze into tungstic acid and molybdic acid and produce rare earth fluoride.OBJECTIVESTo establish an analytical method for accurate determination of the 16 rare earth elements including La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, and Sc, in tungsten-molybdenum ore by inductively coupled plasma-mass spectrometry (ICP-MS).METHODSTungsten-molybdenum ore samples were fast digested by microwave with four acid system (HNO3-HF-HClO4-HCl) in a high temperature and high-pressure environment. …”
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Employing Quantum Entanglement for Real-Time Coordination of Distributed Electric Vehicle Charging Stations: Advancing Grid Efficiency and Stability by Dawei Wang, Hanqi Dai, Yuan Jin, Zhuoqun Li, Shanna Luo, Xuebin Li

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ECONOMETRIC METHODS IN FORECAST EVALUATION OF THE DEVELOPMENT STRATEGY OF A MANUFACTURING SYSTEM by A. N. Mardas, O. A. Gulyaeva

“…The article is devoted to the problem of predictive evaluation of the development strategy efficiency of a manufacturing system under non-stationary conditions. …”
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Numerical solution of the viscoelastic wave equation by Galerkin spectral element method by Jalil Rashidinia, Feze Barzegar

“…An a priori error estimate is determined for the total-discrete system. The computational efficiency of the method is confirmed through a numerical example, which shows that the method is effectively applicable.…”
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Evaluating the operational efficiency of the compact urban medical group in Qiqihar based on the three-stage DEA and Malmquist index model by Ye Xing, Chong Tian, Jiayu Wang, Yanting Liu, Jun Tao, Taoyu Lin, Yan Zhou, Yan Zhou, Yue Wang, Xue Bai

“…BackgroundSince the establishment of medical alliances, a key issue regarding their ability to better address the imbalance in China’s medical resources lies in the changes in operational efficiency before and after their formation. This study focuses on urban medical groups, a reform model of medical alliances, and systematically analyzes the changes in operational efficiency before and after the group-based reform, aiming to provide empirical evidence for improving the group-based management model.MethodsThis study employs a dual-method framework combining three-stage DEA for static efficiency evaluation and Malmquist index analysis for dynamic assessment. …”
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Graphene oxide doped polyacrylonitrile-co-maleic acid nanofibers for high-performance liquid chromatography determination of amoxicillin and Oxytetracycline in milk by Shaymaa A. Mohamed, Waleed Alahmad, Ibrahim A. Darwish, Mohamed Aly Saad Aly, Puttaruksa Varanusupakul

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Green Pre-Treatment Strategy Using Ionic Liquid-Based Aqueous Two-Phase Systems for Pesticide Determination in Strawberry Samples by Ana Jocić, Slađana Marić, Danijela Tekić, Jasmina Mušović, Jelena Milićević, Sanja Živković, Aleksandra Dimitrijević

“…Liquid–liquid equilibrium measurements for each ATPS were conducted, followed by extraction experiments to determine the most efficient systems for pesticide extraction. …”
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The Safety and Efficiency of Tirofiban in Acute Ischemic Stroke Patients Treated with Mechanical Thrombectomy: A Multicenter Retrospective Cohort Study by Lili Zhao, Yating Jian, Tao Li, Heying Wang, Zhang Lei, Man Sun, Ye Li, Yiheng Zhang, Meijuan Dang, Wang Huqing, Sun Hong, Zhang Ru, Hongxing Zhang, Yi Jia, Luo Guogang, Zhang Guilian

“…Multivariate and COX regression analyses were performed to determine the association of tirofiban treatment with safety and efficiency in subjects treated with MT. …”
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Simultaneous Determination of Sunset Yellow FCF, Allura Red AC, Quinoline Yellow WS, and Tartrazine in Food Samples by RP-HPLC by Hakan Alp, Davut Başkan, Ahmet Yaşar, Nurettin Yaylı, Ümmühan Ocak, Miraç Ocak

“…An efficient method was developed for the simultaneous determination of Sunset Yellow FCF (E110), Allura Red AC (E129), Quinoline Yellow WS (E104), and Tartrazine (E102) in food samples by RP-HPLC. …”
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Focal Mechanism and Moment Tensor Determination for Tsunami Early Warning Systems: A Literature Study (2018–2024) by Titi Handayani, Wijayanto, Adhi Harmoko Saputro, Mohd Asyraf Zulkifley, Dede Djuhana

“…This review aimed to guide the selection of appropriate methods for determining focal mechanism and moment tensor in Tsunami Early Warning Systems (TEWS) while identifying challenges and potential future study directions.…”
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Determination of the Activity Coefficients of Components in a Di-2-ethylhexylphosphoric Acid–n-Hexane Binary System Using Gas Chromatography by Vladimir Glebovich Povarov, Olga Vladimirovna Cheremisina, Daria Artemovna Alferova, Aleksandr Tomasovich Fedorov

“…This study was devoted to the determination of n-hexane’s concentrations in the vapor phase over D2EHPA solutions at 293.0 K using gas chromatography (GC) and isopiestic (IP) methods. …”
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Clinical prediction model by machine learning to determine the results of maternal dietary avoidance in food protein-induced allergic proctocolitis infants by Jing Li, Meng-yao Zhou, Yang Li, Xue Wu, Xin Li, Xiao-li Xie, Li-jing Xiong

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A new method to measure the divergence in evidential sensor data fusion by Yutong Song, Yong Deng

“…Recent researches show that weighting the evidences with the consideration of its corresponding credibility is an efficient methodology. As a result, how to determine the weight is an important issue. …”
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The Determinants of Delays and Their Impact on Clinical End Points in Acute ST-Segment Elevation Myocardial Infarction: A Single-Center Experience by Kardelen Ohtaroglu Tokdil, Hasan Tokdil, Eser Durmaz, Bilgehan Karadag, Burcak Kilickiran Avci, Baris Ikitimur, Emre Ozmen, Alpin Mert Tekin, Betul Zehra Pirdal, Zeki Ongen

“…<i>Background and Objectives</i>: The purpose of this study was to determine the factors that cause delay time in patients admitted to the hospital with STEMI. …”
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Managerial Ownership, Company Size, and Profitability as Determinant Factors of Tax Avoidance in Food and Beverage Companies Listed on the IDX in 2020-2023 by Deni Rachmad Sulistiyanto, Heru Tjaraka

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Supplier selection under circular economy: An integrated entropy-EDAS method by Gupta Srikant, Varshney Niharika, Ahmed Aquil, Chatterjee Prasenjit, Kadry Seifedine

“…Criteria weights are determined using Entropy method, while Evaluation based on Distance from Average Solution (EDAS) method has been applied to identify the most suitable supplier. …”
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Full-Length cDNA Cloning and Determination of mRNA 5′and 3′Ends by Amplification of Adaptor-Ligated cDNA by A. Chenchik, L. Diachenko, F. Moqadam, V. Tarabykin, S. Lukyanov, P.D. Siebert

“…An efficient cDNA amplification procedure is described for determining of the 5′ and 3′ ends of mRNAs and cloning full-length cDNAs. …”
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An engineering method of aerodynamic heating prediction for hypersonic blunt body vehicles by Jimin Chen, Guoyi He

“…It utilizes the Kemp-Riddell formula to calculate stagnation point heat flux, while the downstream region heat flux is determined using the reference enthalpy method. Additionally, a simplified streamline tracing approach is proposed to calculate inviscid surface streamlines, achieving a 90% improvement in computational efficiency. …”
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Determination of the Effects of Biopesticides (at Several Lethal Concentrations) from Dioscorea bulbifera L. Leaf Extract Against Cryptotermes cynocephalus Light by Oksari Ade Ayu, Uzhmiyyah Rohmatul, Susanty Devy, Rizki Fathan Hadyan, Arinana Arinana, Wanda Irvan Fadli, Lailaty Intani Quarta, Dadang Dadang

“…This study used the multilevel maceration method to use three distinct polarity and lethal concentrations of solvent. …”
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Determination of Trace ⁵⁵Fe and ⁶³Ni in Steel Samples via Liquid Scintillation Counting by Giada Gandolfo, Maria Letizia Cozzella, Tiziana Guarcini, Giuseppe Augusto Marzo

“…This study presents a reliable and optimized method for the quantitative determination of ⁵⁵Fe and ⁶³Ni in steel samples with activity levels approaching regulatory thresholds. …”
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