Showing 581 - 600 results of 18,849 for search 'sample random sampling.', query time: 0.19s Refine Results
  1. 581

    Determination of the total content of some secondary metabolites in various organs of the Dagestan samples of Capparis herbacea Willd. by F. A. Vagabova, G. K. Radjabov, A. M. Musaev, F. I. Islamova

    Published 2021-03-01
    “…Purpose of the work: comparative assessment of the content of the sum of phenolic compounds exhibiting antioxidant activity in various organs of herbaceous capers C. herbacea Willd. The 4 samples of C. herbaceawere collected from natural populations of Dagestan during the flowering and fruiting phases in the summer of 2019. …”
    Get full text
    Article
  2. 582

    SPAGRM: effectively controlling for sample relatedness in large-scale genome-wide association studies of longitudinal traits by He Xu, Yuzhuo Ma, Lin-lin Xu, Yin Li, Yufei Liu, Ying Li, Xu-jie Zhou, Wei Zhou, Seunggeun Lee, Peipei Zhang, Weihua Yue, Wenjian Bi

    Published 2025-02-01
    “…Abstract Sample relatedness is a major confounder in genome-wide association studies (GWAS), potentially leading to inflated type I error rates if not appropriately controlled. …”
    Get full text
    Article
  3. 583
  4. 584

    Effect of stadium service quality on the club value perceived by the supporter: sample of Konyaspor Büyükşehir Torku Arena by Ali Sevılmıs, Erkan Faruk Sırın

    Published 2016-12-01
    “…The data in the study were obtained 679 supporters, determined by the method of randomly sampling, coming to watch the matches of Torku Konyaspor-Akhisar Belediyespor, Torku Konyaspor-Galatasaray, Torku Konyaspor-Mersin İdman Yurdu, and Torku Konyaspor-Gençlerbirliği in the existing eight tribune areas in 2015 -2016 football season. …”
    Get full text
    Article
  5. 585
  6. 586

    Latent classes of substance use and delinquency in a Swedish national sample of adolescents and associated risk factors. by Clas Björklund, Fredrik Sivertsson, Jonas Landberg, Jonas Raninen, Peter Larm

    Published 2025-01-01
    “…Though, statistical power was a problem and future research should use larger samples or alternative methods.…”
    Get full text
    Article
  7. 587

    Comparison of principal component analysis algorithms for imputation in agrometeorological data in high dimension and reduced sample size. by Valter Cesar de Souza, Sergio Augusto Rodrigues, Luís Roberto Almeida Gabriel Filho

    Published 2024-01-01
    “…This was carried out on high-dimensional and reduced-sample databases, covering different percentages of missing data. …”
    Get full text
    Article
  8. 588

    Complex associations between anxiety, depression, and resilience in a college student sample: a network analysis by Hui Wang, Min Wang, Xiuchao Wang, Tingwei Feng, Xufeng Liu, Wei Xiao

    Published 2025-05-01
    “…The aim of this study is to explore the finer-grained potential relationships between psychological resilience, anxiety, and depression among college students.MethodsThis study employed network analysis to examine the psychological resilience, anxiety, and depression status of a randomly sampled cohort of 855 college students (51.8% female; M = 18.70, SD = 1.13). …”
    Get full text
    Article
  9. 589

    Effect of the gut microbiome, skin microbiome, plasma metabolome, white blood cells subtype, immune cells, inflammatory proteins, and inflammatory cytokines on asthma: a two-sample Mendelian randomized study and mediation analysis by Wenqian Guo, Wenqian Guo, Er Hong, Han Ma, Han Ma, Ji Wang, Qi Wang, Qi Wang

    Published 2025-03-01
    “…This study aims to investigate causal relationships among gut microbiota, skin microbiota, plasma metabolomics, white blood cells subtype, immune cells, inflammatory proteins, inflammatory cytokines, and asthma.MethodsFirst, two-sample Mendelian randomization analysis was used to identify causal relationships. …”
    Get full text
    Article
  10. 590
  11. 591
  12. 592
  13. 593

    A Nonlinear Self-recognition Self-calibration Kalman Filtering Method by FU Huimin, YANG Haifeng, WEN Xinlei

    Published 2019-01-01
    “…According to the rank sampling and Sigma points sampling respectively, the rank sampling self-recognition self-calibration Kalman filter and the Sigma points sampling self-recognition self-calibration Kalman filter were discussed in detail. …”
    Get full text
    Article
  14. 594

    How many trees to see the forest? Assessing the effects of morphospace coverage and sample size in performance surface analysis by Stephanie M. Smith, C. Tristan Stayton, Kenneth D. Angielczyk

    Published 2021-08-01
    “…To do this, we subsampled a pre‐existing set of turtle shell performance surfaces in four different ways: first, uniform subsampling of theoretical morphologies across the surface; second, random subsampling of theoretical morphologies across the surface; third, a combination uniform/random subsampling method called close‐pairs sampling and fourth, subsampling only points on the surface known to correspond to a naturally occurring turtle shell morphology. …”
    Get full text
    Article
  15. 595

    Inference for Two-Parameter Birnbaum–Saunders Distribution Based on Type-II Censored Data with Application to the Fatigue Life of Aluminum Coupon Cuts by Omar M. Bdair

    Published 2025-02-01
    “…The Bayesian method employs Markov Chain Monte Carlo (MCMC) sampling for point predictions and credible intervals. …”
    Get full text
    Article
  16. 596

    Efficiency of ranked set sampling designs in power Lindley system reliability estimation with uncensored and right-censored data by Zhimin Wu, Lin Xiang

    Published 2025-07-01
    “…In the field of statistical modeling for system reliability metrics, ranked set sampling (RSS) designs have been confirmed as effective alternatives to simple random sampling (SRS). …”
    Get full text
    Article
  17. 597
  18. 598

    Comparative Performance of Machine Learning Models for Landslide Susceptibility Assessment: Impact of Sampling Strategies in Highway Buffer Zone by Zhenyu Tang, Shumao Qiu, Haoying Xia, Daming Lin, Mingzhou Bai

    Published 2025-07-01
    “…This study evaluates the impact of two different non-landslide sampling methods—random sampling and sampling constrained by the Global Landslide Hazard Map (GLHM)—on the performance of various machine learning and deep learning models, including Naïve Bayes (NB), Support Vector Machine (SVM), SVM-Random Forest hybrid (SVM-RF), and XGBoost. …”
    Get full text
    Article
  19. 599

    Women’s perceptions and preferences toward HPV self-sampling in France: A questionnaire within the French CapU4 Trial by Hélène De Pauw, Alexandra Ducancelle, Marc Arbyn, Adeline Pivert, Anne-Sophie Le Duc Banaszuk, Juliette Noyelle, Johane Le Goff, Franck Rexand-Galais, Gilbert Donders, Caroline Lefeuvre

    Published 2025-08-01
    “…The target age for HPV-based screening is women aged 30–65. Vaginal self-sampling (VSS) has recently been introduced for women who have not been screened. …”
    Get full text
    Article
  20. 600

    Hybrid exponentially weighted moving average control chart for mean by using different ranked set sampling schemes by Muhammad Noor ul amin, Navara Shabbir, Nasrullah Khan, Afshan Riaz

    Published 2020-10-01
    “… In this paper different schemes of ranked set sampling (RSS) are used to design a new hybrid exponentially weighted moving average (HEWMA) control chart having more sensitivity to small and moderate shifts.The  suggested control chart  dominates classical exponentially weighted moving average (EWMA) control chart, EWMA based on RSS and HEWMA control chart using simple random sampling (SRS). …”
    Get full text
    Article