Showing 14,901 - 14,920 results of 18,849 for search 'sample random sampling.', query time: 0.21s Refine Results
  1. 14901

    Establishment of Hyperspectral Prediction Model of Water Content in Anshan-Type Magnetite by Xiaoxiao XIE, Yang BAI, Jiuling ZHANG, Yuna JIA

    Published 2024-12-01
    “…In order to further improve the prediction ability of the model, the competitive adaptive reweighting method (CARS) was used to optimize the characteristic band, and a prediction model was established by combining random forest regression (RFR), least squares support vector regression (LSSVR) and particle swarm optimization least squares support vector regression (PSO-LSSVR). …”
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  2. 14902

    Transfer Learning Estimation and Transferability of LNC and LMA Across Different Datasets by Yingbo Wang, Mengzhu He, Lin Sun, Yong He, Zengwei Zheng

    Published 2024-12-01
    “…Compared to the RFR transfer model using spectra without updating, the root mean square error (<i>RMSE</i>) of the WDT-RFR transfer model with 5% samples transferred to estimate LMA and LNC increased by 7.9% and 4.8% on average, respectively. …”
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  3. 14903

    Data Integration Based on UAV Multispectra and Proximal Hyperspectra Sensing for Maize Canopy Nitrogen Estimation by Fuhao Lu, Haiming Sun, Lei Tao, Peng Wang

    Published 2025-04-01
    “…Field experiments were conducted to collect multispectral data (20 vegetation indices [MVI] and 24 texture indices [MTI]), hyperspectral data (24 vegetation indices [HVI] and 20 characteristic indices [HCI]), alongside laboratory analysis of 120 CNC samples. The Boruta algorithm identified important features from integrated datasets, followed by correlation analysis between these features and CNC and Random Forest (RF)-based modeling, with SHAP (SHapley Additive exPlanations) values interpreting feature contributions. …”
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  4. 14904

    High correlation between detection of dengue IgG from dried blood spots and serum using an indirect IgG ELISA assay: A validation study in Fortaleza, Brazil. by Monica Zahreddine, Beatriz Parra, Laura Pierce, Danielle Ferreira de Oliveira, Mabel Carabali, Katia Charland, Kellyanne Abreu, Valéry Ridde, Danielle Malta Lima, Kate Zinszer

    Published 2025-02-01
    “…In preparation for a large cluster randomized controlled trial, we conducted a pilot study in 2019 to validate the use of DBS compared to serum samples for DENV IgG testing. …”
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  5. 14905

    The Effect of a 4-Week TRX Suspension Training on Lower Extremity Alignment and Muscle Strength in Male Basketball Players by Mohammad seyedahmadi, Karim Khalaghi, Ahmad Aghaei, Maliheh Ardakanizade

    Published 2025-06-01
    “…Thirty-two athletes diagnosed with dynamic knee valgus were randomly selected as samples and randomly assigned to experimental (n=16) and control (n=16) groups. …”
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  6. 14906

    Genetic predictors of response to serotonergic and noradrenergic antidepressants in major depressive disorder: a genome-wide analysis of individual-level data and a meta-analysis. by Katherine E Tansey, Michel Guipponi, Nader Perroud, Guido Bondolfi, Enrico Domenici, David Evans, Stephanie K Hall, Joanna Hauser, Neven Henigsberg, Xiaolan Hu, Borut Jerman, Wolfgang Maier, Ole Mors, Michael O'Donovan, Tim J Peters, Anna Placentino, Marcella Rietschel, Daniel Souery, Katherine J Aitchison, Ian Craig, Anne Farmer, Jens R Wendland, Alain Malafosse, Peter Holmans, Glyn Lewis, Cathryn M Lewis, Tine Bryan Stensbøl, Shitij Kapur, Peter McGuffin, Rudolf Uher

    Published 2012-01-01
    “…<h4>Methods and findings</h4>The NEWMEDS consortium, an academia-industry partnership, assembled a database of over 2,000 European-ancestry individuals with major depressive disorder, prospectively measured treatment outcomes with serotonin reuptake inhibiting or noradrenaline reuptake inhibiting antidepressants and available genetic samples from five studies (three randomized controlled trials, one part-randomized controlled trial, and one treatment cohort study). …”
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  7. 14907

    Smoking prevalence and intensity in non-organized male population with cardiovascular disease by E. V. Akimova, V. A. Kusnetsov, V. V. Gafarov, M. M. Kayumova, V. Yu. Smaznov

    Published 2007-08-01
    “…Material and methods. A representative sample of 25-64-year-old men to undergo cardiac screening was randomly selected from Tumen City voting lists. …”
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  8. 14908

    The effectiveness of modified constraint-induced movement therapy on upper limb function in children with cerebral palsy: a systematic review and meta-analysis by Haiyan Wang, Jilan Zhou, Xiaojing Shan, Li Zhang

    Published 2025-07-01
    “…Further high-quality randomized controlled trials with standardized protocols and longer follow-up are needed. …”
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  9. 14909

    Efficacy of chemical repellents to reduce bird damage rate to oilseed rape plants by Abolghasem Khaleghizadeh, Asgar Jouzian, Hasan Barari

    Published 2023-12-01
    “…Ammonium Aluminium Sulphate 50g/lit and 25kg/hec, and 4. Control. In every sampling time, ten quadrats of 1*1 m2 were randomly applied in each treatment. …”
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  10. 14910
  11. 14911

    Fatty acid profile in dorsal fat and Longissimus dorsi muscle of post-weaned hairless piglets fed with arboreal leaves meal by Claudia Teresita Castellón-Moya, Clemente Lemus-Flores, Dany Alejandro Dzib-Cauich, Julio Enrique Oney-Montalvo, Fernando Grageola-Núñez, Job Oswaldo Bugarín-Prado, Nitmar Itzel Pat-Moreno

    Published 2025-07-01
    “… In the present investigation, the inclusion  of  flours  from the arboreal Cnidoscolus aconitifolius (Chaya), Morus alba (Mulberry) and Moringa oleifera (Moringa) in the conventional Corn-Soy diet was compared to evaluate the lipid profile in the Longisimus dorsi (LD) and in the back fat (DF) of the post- weaned Pelon pigs. A sample of 28 animals, 24 days old, post- weaned, was used. …”
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  12. 14912
  13. 14913

    The Role of the Gastrointestinal Microbiota in Parkinson’s Disease by Maurizio Gabrielli, Lorenzo Zileri Dal Verme, Maria Assunta Zocco, Enrico Celestino Nista, Veronica Ojetti, Antonio Gasbarrini

    Published 2024-12-01
    “…Despite this potential, the current evidence is limited by small sample sizes and methodological variability across studies. …”
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  14. 14914

    Multi-ancestry meta-analysis of genome-wide association studies discovers 67 new loci associated with chronic back pain by Ian B. Stanaway, Pradeep Suri, Niloofar Afari, Daniel Dochtermann, Armand Gerstenberger, Saiju Pyarajan, Eric J. Roseen, Million Veteran Program, Marianna Gasperi

    Published 2025-02-01
    “…Abstract This multi-ancestry meta-analysis of genome-wide association studies (GWAS) investigated the genetic factors underlying chronic back pain (CBP) in a sample from the Million Veteran Program comprised of 553,601 Veterans of African (19.2%), European (72.6%), and Hispanic (8.2%) ancestry. …”
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  15. 14915

    The Real-World Use of Semaglutide to Promote Weight Loss in Obese Adults With Hemodialysis: A Multicenter Cross-Sectional Descriptive Study by Jodianne Couture, Pascale Robert, Marie-France Beauchesne, Gabriel Dallaire, Annie Lizotte, Jo-Annie Lafrenière, Julie Beauregard, Janique Doucet

    Published 2025-03-01
    “…Limitations: This study has several limitations, including its non-randomized design, short follow-up period, small sample size, and incomplete data on treatment compliance and adverse effects. …”
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  16. 14916
  17. 14917

    Do long-lasting insecticidal nets retain their efficacy after three years of usage in Afghanistan? Findings from a study on survivorship, physical integrity, insecticidal activity... by Martijn Vink, Mushtaq Ahmad, Muhammad Farooq Sabawoon, Mohammad Sami Nahzat, Abdul Majeed Siddiqi, Mohammad Naseem, Najeebullah Alizoi, Henk D. Schallig, John Bradley, Sarah Moore, Maarten F. Schim van der Loeff

    Published 2025-04-01
    “…Methods In 2014, 500 households in 5 malaria endemic Afghan provinces (Balkh, Herat, Khost, Kunduz and Nangarhar) that had received LLINs (PermaNet 2.0) three years earlier were randomly selected through cluster sampling. All household heads were interviewed about LLIN survivorship, usage and maintenance. …”
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  18. 14918

    Comprehensive analysis of the interaction microbiome and prostate cancer: an initial exploration from multi-cohort metagenome and GWAS studies by Gui-Chen Ye, Hao Peng, Jia-Cheng Xiang, Ling-Tao Miao, Cheng-Zhi Liu, Shao-Gang Wang, Qi-Dong Xia

    Published 2025-01-01
    “…We used Kraken2, a mapping tool, to mine the gut microbiota of prostate cancer patients. A two-sample Mendelian Randomization was conducted to reflect the association between gut microbiome and cancer. …”
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  19. 14919

    RUNX2 and ALP expression in osteoblast cells exposed by PMMA-HAp combination: An in vitro study by Claudia Michelle Darjanki, Chiquita Prahasanti, Eka Fitria A, Banun Kusumawardani, I Komang Evan Wijaksana, Mohammed Aljunaid

    Published 2023-03-01
    “…Twenty-four fetal rat calvarie osteoblast cell cultures were randomly divided into 6 groups: 7- and 14-day control group, 7 and 14 days PMMA-HApGMP group, 7 and 14 days PMMA-HApBBK group. …”
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  20. 14920

    Comparison of Gut Microbiota in Overwintering Bees: <i>Apis cerana</i> vs. <i>Apis mellifera</i> by Heng Chen, Lijiao Gao, Jialin Liu, Conghui Ji, Xiaoqun Dang, Zeyang Zhou, Wenhua Luo

    Published 2024-11-01
    “…Therefore, this study was conducted to compare the gut microbiota dynamics of overwintering bees. Sample acquisition involved randomly selecting ten colonies each from three bee farms containing <i>Apis cerana</i> (AC) and <i>Apis mellifera</i> (AM), followed by dissection for further analysis. …”
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