Showing 2,281 - 2,300 results of 18,993 for search 'sampling more methods', query time: 0.25s Refine Results
  1. 2281

    Quantification of Metronidazole in Tablets: Combining Thin-Layer Chromatography in the GPHF-Minilab™ with Image Processing Using Open-Source ImageJ Software by Christopher L. Harmon, Sean Butts, Mary Elizabeth Sowers, Ed Bethea, David Jenkins

    Published 2024-10-01
    “…Images were processed through the open-source program ImageJ and resulting pixel data from the standard spots were used to create a calibration curve, enabling quantitation of the sample. The USP Metronidazole Tablet high-performance liquid chromatography (HPLC) assay was used as the reference method. …”
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  2. 2282

    Optimization via Taguchi of Artificial Lightweight Aggregates Obtained from Kaolinite Clay and Ceramic Waste: Development and Industrial Applications by José Anselmo da Silva Neto, Marcos Alyssandro Soares dos Anjos, Ricardo Peixoto Suassuna Dutra, Maelson Mendonça de Souza, Cinthia Maia Pederneiras

    Published 2025-06-01
    “…Furthermore, the Taguchi method is employed to identify the optimal manufacturing parameters, such as waste content, sintering temperature, and heating time. …”
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  3. 2283

    Evaluation of Peroxide Value and Free Fatty Acid Content in Coconut Oil and Palm Oil under Different Heating Temperature Treatments using Reflectance–Fluorescence-based computer vi... by Luluk Oktaviana, Wahyunanto Agung Nugroho, Dimas Firmanda Al Riza Al Riza

    Published 2025-04-01
    “…The background of this research lies in the need for a more efficient analytical method compared to conventional laboratory testing, which is often time-consuming and costly. …”
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  4. 2284

    Improving accuracy and precision of heritability estimation in twin studies through hierarchical modeling: reassessing the measurement error assumption by Gang Chen, Dustin Moraczewski, Paul A. Taylor

    Published 2025-04-01
    “…Moreover, we showcase the following analytical insights for data containing non-negligible measurement errors: i) The conventional SEM may underestimate heritability. ii) A hierarchical model provides a more accurate assessment of heritability. iii) Large samples, exceeding 100 observations or thousands of twins, may be necessary to reduce imprecision.Discussion: Our study highlights the impact of measurement error on heritability estimation and introduces a hierarchical model as a more accurate alternative. …”
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  5. 2285

    Rare Earth Element Contents and Occurrence Forms in Weathering Crust Ion Adsorption Rare Earth Ore by Xilian XIAO, Min GUO, Xin SHAO, Juanjuan TAN, Lei WANG, Xiaofei QIU

    Published 2024-12-01
    “…ICP-MS was used as the detection method to explore the distribution of the total amount and various REE forms in the samples. …”
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  6. 2286

    Optimizing Rotary Cement Kiln modelling: A comparative analysis of metaheuristics in a real-world application by Miguel Ángel Castán-Lascorz, Antonio Alcaide-Moreno, Jorge Arroyo

    Published 2025-03-01
    “…Another notable difficulty lies in selecting among the plethora of metaheuristic methods, which may exhibit significant variations in search efficiency. …”
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  7. 2287
  8. 2288

    A versatile HPLC method collaborated with NaDES-ultrasound-assisted LLE and machine learning for purity testing and trace analysis of 1,4-benzodiazepines in crime scene evidence, h... by Walaa Nabil Abd-AlGhafar, Rasha Abo Shabana, Rania El-Shaheny, Manar M. Tolba

    Published 2025-08-01
    “…Therefore, the development of a fast, versatile, and high throughput method for the analysis of these compounds in hospital effluent and food samples from crime scenes is of paramount importance. …”
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  9. 2289

    Antimicrobial, Oxidant, Cytotoxic, and Eco-Safety Properties of Sol–Gel-Prepared Silica–Copper Nanocomposite Materials by Lilia Yordanova, Lora Simeonova, Miroslav Metodiev, Albena Bachvarova-Nedelcheva, Yoanna Kostova, Stela Atanasova-Vladimirova, Elena Nenova, Iliana Ivanova, Lyubomira Yocheva, Elitsa Pavlova

    Published 2025-06-01
    “…The yeasts were more sensitive to Si/Cu (gel). The new nanomaterials were tested for oxidant activity at pH 7.4 (physiological) and pH 8.5 (optimal) in three model systems by the chemiluminescent method. …”
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  10. 2290

    Early initiation of breastfeeding and exclusive breastfeeding practices and associated factors among first-time mothers attending governmental maternal and child health clinics in... by Frieselam Zewdu, Solomon Mekonnen, Azeb Atenafu

    Published 2025-04-01
    “…This study aimed to assess early initiation and exclusive breastfeeding practices and associated factors among first-time mothers attending governmental maternal and child health clinics in Gondar town, Northwest Ethiopia. Methods A facility-based cross-sectional quantitative study on 885 first-time mothers selected by two-stage sampling complemented by a phenomenological qualitative study on 23 purposively chosen participants was conducted from February 24 to May 27, 2021. …”
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  11. 2291
  12. 2292

    Projection Profiling: A Data Compressing Strategy in Three-Dimensional Liquid Chromatography for Quality Control of Traditional Herbal Medicine by Jing Zhang

    Published 2025-03-01
    “…The influence of different integration methods and wavelengths on analytical method validation and similarity analysis results are discussed in detail to clarify the advantages of the projection profiling. …”
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  13. 2293

    DIFFERENTIAL APPROACH TO URINARY SYNDROME VERIFICATION IN MEDICOPROPHYLACTIC FACILITIES IN CHILDREN WITH URINARY TRACT INFECTIONS by E.M. Pleshkova, A.A. Yailenko

    Published 2011-11-01
    “…Study objective: to evaluate diagnostic accuracy of deep-stick tests in urinary syndrome verification in pediatric urinary tract infections (UTI). Methods: examination of a urinary sample using standard methods and prompt analysis with urine biochemical composition analyser among 66 children aging from 2 months to 16 years. …”
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  14. 2294
  15. 2295

    Exploring the Effects of pH on the Morphology and Optical Characteristics of ZnFe2O4 Nanoparticles by Mahdiyeh Taherkhani, Mohammad Ehsani, Reza Zarei moghadam, Abbas Javadian

    Published 2025-05-01
    “…This size reduction corresponds with an increase in dislocation density and strain within the samples, suggesting that higher pH environments lead to more significant structural alterations. …”
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  16. 2296

    Comparative evaluation of various cytomorphological grading systems in breast carcinoma by P Arul, Suresh Masilamani

    Published 2016-01-01
    “…Despite various cytological grading systems, Robinson's method is simple, more objective, and reproducible, hence being preferable for routine use.…”
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  17. 2297

    Contextual Sensitivity Analysis for Urban Industrial Heritage Quarter Regeneration: Shanghai as a Pilot Case Study by Simiao Li, Tim Heath

    Published 2025-05-01
    “…By identifying and comparatively analysing indicators with stronger correlations, the study reveals which contextual factors are more effective and efficient in influencing particular heritage values under certain conditions. …”
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  18. 2298

    Evaluating mechanical and thermodynamic properties of asphalt mixtures containing anti freezing agents against low temperature cracking by Gholam Hossein Hamedi, Mohammad Hosein Dehnad, Amir Hossein Asadi

    Published 2025-07-01
    “…The results of both methods indicated that NaOAc had a more significant impact on reducing the low-temperature resistance of HMAs and bitumen-aggregate adhesion compared to NaCl. …”
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  19. 2299

    Addictive behaviour of students: Early detection experience and socio-psychological characteristics by A. V. Smirnov, L. A. Maksimova, I. A. Simonova

    Published 2022-11-01
    “…The sample consisted of 6,300 people.Results. Based on the analysis of scientific sources, the authors described the epidemiological picture of various forms of addictive behaviour of minors, the differences between male and female samples (young men demonstrate a greater desire for leadership, protest reactions, rivalry, and girls are more anxious, frustrated, focused on internal experiences), the interrelationships between the scales of the methodology and the poles of the selected factor structure from the point of view of asociality and prosociality of juvenile behaviour (desire for risk, social maladjustment, avoidance of conflict and others).Scientific novelty. …”
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  20. 2300

    Optimization of flammability and thermo-physiological comfort properties in fire-fighter's protective clothing using VIKOR technique by Hafsa Jamshaid, Rajesh Kumar Mishra, Miroslav Muller, Naseer Ahmad, Muhammad Ijaz, Muhammad Shoaib, Vijay Chandan, Petr Jirku

    Published 2025-06-01
    “…The second-best sample was with 100 % Nomex fiber and Matt weave structure followed by the sample with 70 % Nomex and 30 % Protex fiber having Matt weave structure. …”
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