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  1. 801

    Equity of National Essential Public Health Services (NEPHS) in Mainland China, 2019: a cross-sectional study based on the NEPHS database by Lu Liu, Jinhong Zhao, Yuxing Wang, Xinyue Chen, Siqi Zhang, Mengyu Li, Lili You, Yuanli Liu

    Published 2025-03-01
    “…Service utilization rates and bias-corrected bootstrap confidence intervals (CIs) were calculated to determine utilization. Inequities were assessed using the Gini coefficient and Sitthiyot-Holasut composite inequality index at the national and provincial levels, and the Theil index was employed to decompose overall inequity into within-region and between-region subgroups. …”
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  2. 802

    Modern methodology for the development of parametric models for determining the cost of transporting freights for tariff setting purposes by E. N. Efimova, P. B. Manevich, A. V. Shmelev

    Published 2018-08-01
    “…Modeling the cost of transporting freights by rail tion of coefficients taking into account the length of cars and the for tariff purposes is based on determining and assessing the rela-distance of transportation, as well as the methodology for the distionship between transportation costs and work indexes. tribution of costs between the initial-final and motion operations. …”
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  3. 803

    Ultrasonic Extraction-Gas Chromatography-Mass Spectrometry for Determination of Eight Organophosphorus Flame Retardants in Coatings by ZHANG Ying, LI Yi, CHEN Yezi, WANG Xutao

    Published 2022-01-01
    “…A method for the simultaneous determination of eight organophosphorus flame retardants (OPFRs) in coatings is developed with ultrasonic extraction for preprocessing and gas chromatography-mass spectrometry (GC-MS).The comparison and optimization of experimental conditions in the ultrasonic extraction process indicate that acetone should be taken as the extraction solvent,and the extraction temperature and time should be set to 30 ℃ and 15 min,respectively;when the extraction is repeated twice,the recovery is good.Quantitative analysis is performed by GC-MS with selective ion scanning,with the linear range of the standard preparation curves being 10~1 000 ng/mL.The results demonstrate that the correlation coefficients of linear regression equations for eight OPFRs are not less than 0.990 4.The detection limits of the method are between 0.04 and 0.26 ng/mL,with the recovery of 79.3%~112.0%,and the relative standard deviations are less than or equal to 6.4%.The application of the method to the determination of OPFRs in coating products from five enterprises shows that TCEP is detected in samples of only one enterprise,with a concentration of 15.22 ng/mL.…”
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  4. 804

    Exploiting of Green Synthesized Metal Oxide Nanoparticles in the Potentiometric Determination of Metformin Hydrochloride in Pharmaceutical Products by Shikhah Almutairi, Nawal A. Alarfaj, Adibah M. Almutairi, Maha F. El-Tohamy

    Published 2024-01-01
    “…The newly functionalized sensors have been successfully used for the determination of MTF in its commercial products.…”
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  5. 805
  6. 806
  7. 807

    Assessment of musculoskeletal disorders risk using MFA method and the survey of correlation between its results and results of RULA method by M Zokaei, M Flahati, H Jalilian, Mamin Faghih, M Normohammadi, S Amiry

    Published 2014-10-01
    “…In this study, 80 postures were assessed by using of two mentioned methods to determine the musculoskeletal risk level. …”
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  8. 808

    An Adaptive Noise Reduction Method Based on Improved Dislocation Superposition Method for Abnormal Noise Fault Component of Automotive Engine by Jiaoyi Hou, Pengwei Guo, Aoyu Xu, Dayong Ning, Shengtao Chen, Zengmeng Zhang, Yongjun Gong, Yinglong Chen, Hao Tian, Hongwei Du

    Published 2021-01-01
    “…This study proposes an adaptive noise reduction method based on the dislocation superposition method (DSM), which can realize the adaptive noise reduction and the extraction of fault a component from the automobile engine abnormal noise signal of low SNR. …”
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  9. 809

    An Improved Method for TOC Calculation in Lacustrine Sediments by GUAN Qianqian, JIANG Long, CHENG Ziyan, ZHANG Diandong, ZHANG Fan

    Published 2023-10-01
    “…Taking Boxing sag and Lijin sag of Jiyang depression in the study area as an example, the correlation coefficient between TOC and measured values predicted by the improved ΔlogR method under lacustrine sedimentary background is about 90% through lithology correction. …”
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  10. 810

    Neutron studies of diffusion processes near a singular point in a dilute aqueous solution of ethanol by O. A. Vasylkevych, V. I. Slisenko

    Published 2023-09-01
    “…The overall coefficient of self-diffusion of molecules D, its single-particle Ds-p and collective Dcoll components, as well as the time of settled life of a molecule in a vibrational state t, are determined. …”
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  11. 811

    NEW METHOD OF PRODUCTION OF ALUNINUM SILICON ALLOYS by V. K. Afanasiev, E. L. Marukovich, M. N. Churik, V. V. Gertsen, A. V. Gorshenin, V. A. Samon

    Published 2015-11-01
    “…It is shown that the application of the proposed method allows to improve the mechanical properties and reduce the coefficient of thermal expansion alloys, Al-Si. …”
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  12. 812

    An improved GRU method for slope stress prediction by Lichun Bai, Ronghui Zhao, Sen Lin, Zishu Chai, Xuan Wang

    Published 2025-04-01
    “…The preliminary preprocessing of open pit mine slope stress data using VMD can provide high decomposition accuracy and can effectively extract localized features in the stress; The method introduces Dung Beetle Optimization (DBO) to determine the number of hidden neuron layers and the optimal learning rate for the GRU. …”
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  13. 813

    Development of an Analytical Protocol for Determination of Cyanide in Human Biological Samples Based on Application of Ion Chromatography with Pulsed Amperometric Detection by Ewa Jaszczak, Marek Ruman, Sylwia Narkowicz, Jacek Namieśnik, Żaneta Polkowska

    Published 2017-01-01
    “…Under the optimized conditions, the method showed good linearity in the range of 1–100 μg/L for urine, 5–100 μg/L for saliva, and 3–100 μg/L for sweat samples with determination coefficients (R)>0.992. …”
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  14. 814

    Determinants of private entrepreneurship in Kinshasa healthcare in the Democratic Republic of Congo: a structural equation modelling approach by Clement Nsubile, Theophane Bukele, Astrid Badisanse

    Published 2023-09-01
    “… # Results The findings reveal a positive relationship between the profile of the health zone and the development of private health services in Kinshasa (coefficient of 0.720). The health zone profile is primarily influenced by the mortality rate (coefficient of 0.793), while the development of private healthcare entrepreneurship is most strongly reflected by the number of paramedical practices (coefficient of 0.293)…”
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  15. 815

    Statistical methods used to test for agreement of medical instruments measuring continuous variables in method comparison studies: a systematic review. by Rafdzah Zaki, Awang Bulgiba, Roshidi Ismail, Noor Azina Ismail

    Published 2012-01-01
    “…Only 412 titles were potentially related, and finally 210 fitted the inclusion criteria. The Bland-Altman method is the most popular method with 178 (85%) studies having used this method, followed by the correlation coefficient (27%) and means comparison (18%). …”
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  16. 816

    Identification of the Parameters of the Szpica–Warakomski Method’s Rectilinear Trend Complementary to the Gaussian Characteristic Area Method in the Functional Evaluation of Gas In... by Dariusz Szpica, Jacek Hunicz, Andrzej Borawski, Grzegorz Mieczkowski, Paweł Woś, Bragadeshwaran Ashok

    Published 2025-06-01
    “…The qualitative evaluation yielded coefficients of determination of 95.01 and 94.07. The values of the trend parameters were strongly dependent on the design solution and model/type of injector. …”
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  17. 817

    Determine the psychometric properties by Symptom Checklist-90-Revised (SCL-90-R) among military forces by J anisi, SH babaei, M barani, H mohammadlo, F ebrahimi

    Published 2015-12-01
    “…Materials and methods: The present study is a descriptive-correlative research. …”
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  18. 818

    Reliability of anthropological measurements in determining vertical dimension of occlusion in Saudi population: A cross sectional study by Narendra Basutkar, Aliaa Mahmoud Borham, Saad Ali AlGhamdi, Elaf Waleed Alderea, Mohammed Mansour AlShammari, Khamrunissa Hussain Sheikh

    Published 2021-11-01
    “…Many facial and body landmarks have been proposed in the literature correlating to the VDO. Presence of so many methods to determine VDO further leads to confusion in the minds of clinicians. …”
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  19. 819

    Main Principles for Determination of Economic Efficiency while Using Type- and Group Technological Processes in Machine-Building by L. M. Kozhuro, Zh. A. Mrochek, V. I. Pokhabov, I. P. Zotova

    Published 2004-02-01
    “…The paper considers an expediency of introduction of type- and group technological processes in machine-building. The methods have been proposed to determine optimal number of settings-up and operations prescribed for every machine and economically justified coefficient of equipment capacity and calculation of economic efficiency of machine part manufacturing when type- and group technological processes are used.…”
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  20. 820

    β-alanine spectrophotometric determination in reaction with sodium salt of 1,2-naphthoquinone-4-sulfonic acid by K. P. Portna, S. O. Vasyuk

    Published 2015-02-01
    “…The new spectrophotometric method for the quantitative determination of β-alanine in pharmaceutical formulations has been developed. …”
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