Showing 1,601 - 1,620 results of 18,849 for search 'sample random sampling', query time: 0.23s Refine Results
  1. 1601

    Urban mobility under armed conflict: shifts in mode preferences and public transport fare behaviors by Oleksandr Rossolov, Natalia Potaman, Olena Levchenko, Yusak O. Susilo

    Published 2025-03-01
    “…Behavioral data was collected via an online survey, yielding a final sample of 213 respondents. The analysis covers a multimodal transportation system that comprises metro, bus, trolleybus, tram, private car, bicycle, and walking modes. …”
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    Article
  2. 1602

    Association between serum hypertriglyceridemia and hematological indices: data mining approaches by Somayeh Ghiasi Hafezi, Amin Mansoori, Alireza Kooshki, Marzieh Hosseini, Sahar Ghoflchi, Mark Ghamsary, Gordon Ferns, Habibollah Esmaily, Majid Ghayour-Mobarhan

    Published 2024-12-01
    “…This study was carried out to assess the potential relation between the concentration of TG and hematological factors. Method Our sample size was 9704 participants beginning in 2007 and ending in 2020 aged between 35 and 65 years, sourced from the MASHAD cohort (northeastern Iran). …”
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    Article
  3. 1603

    Landslide Risk Assessment as a Reference for Disaster Prevention and Mitigation: A Case Study of the Renhe District, Panzhihua City, China by Yimeng Zhou, Lei Xue, Hao Ding, Haoyu Wang, Kun Huang, Longfei Li, Zhuan Li

    Published 2025-06-01
    “…Firstly, based on 190 landslide points and 10 influencing factors, the landslide hazard was assessed using three models: random forest (RF), eXtreme Gradient Boosting (XGBoost), and Tabular Prior-data Fitted Network (TabPFN). …”
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    Article
  4. 1604

    *SMARTSIM* A multicenter prospective randomized trial of 3D virtual reality versus traditional patient simulation by Erin Donathan, Andrea LaLumia, Charles Foat, Nigel Barr, David I. Page

    Published 2024-02-01
    “…Methods Students selected from a convenience sample of 11 cohorts in 10 accredited programs distributed across the United States were allocated to 2 groups using a stratified random sampling. …”
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  5. 1605

    A study on the effectiveness of machine learning models for hepatitis prediction by Popy Khatun, Shafeel Umam, Rubaiya Binte Razzak, Iffat Binta Shamsuddin, Nahid Salma

    Published 2025-08-01
    “…The study utilized the hepatitis dataset from the UCI repository, which includes 155 participants and 20 attributes related to demographics, clinical data, and laboratory results. Given the limited sample size, we adopted a diverse set of machine learning techniques to mitigate the risk of overfitting and improve generalizability. …”
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    Article
  6. 1606
  7. 1607

    Causal analysis of education attainment and brain structure in chronic obstructive pulmonary disease: a Mendelian randomization study by Shaochu Zheng, Xiaotong Liu, Jinliang Kong, Jing Luo

    Published 2025-07-01
    “…Methods First, we performed a two-sample Mendelian randomization (MR) analysis to investigate the relationship between educational attainment and COPD. …”
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    Article
  8. 1608

    Efficacy of Adjuvant Yoga Therapy for Cognition in Schizophrenia: A Systematic Review and Meta-analysis of Randomized Controlled Trials by Daiveek G. Pattanashetty, Shivarama Varambally, Hemant Bhargav

    Published 2025-01-01
    “…Conclusion: The results of the meta-analysis should be interpreted with caution owing to the low power, small sample size, methodological limitations in the included studies, and hence high likelihood of type II error. …”
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    Article
  9. 1609
  10. 1610

    Acupuncture therapy for sudden sensorineural hearing loss: a systematic review and meta-analysis of randomized controlled trials. by Xin-chang Zhang, Xiu-ping Xu, Wen-tao Xu, Wen-zhen Hou, Ying-ying Cheng, Chang-xi Li, Guang-xia Ni

    Published 2015-01-01
    “…However, given that there were fewer eligible RCTs and limitations in the included trials, such as methodological drawbacks and small sample sizes, large-scale RCTs are required to confirm the current findings regarding acupuncture therapy for SSHL.…”
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  11. 1611

    Mendelian randomization analysis reveals causal effects of migraine and its subtypes on early-onset ischemic stroke risk by Rui Zhang, Peng-Peng Niu, Shuo Li, Yu-Sheng Li

    Published 2024-12-01
    “…We aimed to investigate the causal effects of genetically determined migraine and its subtypes on the risk of early-onset ischemic stroke using the two-sample Mendelian randomization method. Genetic instrumental variables associated with migraine and its subtypes were acquired from two sources with the largest sample sizes available. …”
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    Article
  12. 1612

    Causal relationship between immune cells and risk of heart failure: evidence from a Mendelian randomization study by Wenjing Cao, Zefu Yang, Liumei Mo, Zhenhao Liu, Jiawei Wang, Zhenhong Zhang, Kui Wang, Wei Pan

    Published 2025-01-01
    “…In addition, we assessed heterogeneity and cross-sectional pleiotropy through sensitivity analyses.ResultsA two-sample Mendelian randomization (MR) analysis was conducted using IVW as the primary method. …”
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    Article
  13. 1613

    Study on the Load-Bearing Behavior of Underground Steel Structures with Pitting Corrosion Damage by Wei Wang, Junping Shi

    Published 2025-06-01
    “…In order to study the effect of random pitting defects on the bearing capacity of steel structures in underground engineering, four kinds of samples containing random pitting defects were made and simulated damage tests were carried out. …”
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  14. 1614

    Effects of 8 weeks plyometric training on injury prevention of domestic cricket players: A randomized clinical trial by Aqsa Safdar, Farhan Ahmad, Aisha Amin, Abdul Rehman, Hafiz Muhammad Abu Bakar Rashid

    Published 2024-12-01
    “…They were randomly allocated into the plyometric group (n=18) and a conventional group (n=18). …”
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  15. 1615

    Customer Lifetime Value Modeling via Two Stage Selected Trees Ensembles by Zardad Khan, Amjad Ali, Saeed Aldahmani, Henrik Nordmark, Berthold Lausen

    Published 2025-01-01
    “…Decision tree selection is done based on individual tree performance on independent samples, out-of-bag samples, and sub-samples for their inclusion in the final ensemble. …”
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  16. 1616

    Causal relationship between genetically predicted mental disorders and frailty: a bidirectional and multivariable mendelian randomization study by Wenxi Sun, Ping Sun, Sijia Tang, Xiaohui Wu, Jun Chen, Yiru Fang, Xiaobin Zhang

    Published 2024-12-01
    “…Methods We conducted a two-sample Mendelian randomization (MR) study to assess the causal relationship between frailty, as measured by the frailty index (FI), and ten common mental disorders. …”
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    Article
  17. 1617

    UDP-Glucose Ceramide Glucosyltransferase Inhibition, Immune Cell Mediation, and Endometriosis Risk: A Mendelian Randomization Study by Xue L, Zhang R, Chen J, Ge X, Chen J

    Published 2025-05-01
    “…Therefore, in this study, we performed a two-sample, two-step Mendelian randomization (MR) analysis modeling genetic variation of UGCG inhibitors to investigate the causal relationship between genetically determined UGCG inhibition, EM, and mediation of immune cells.Methods: Two-sample MR was conducted using genome-wide association study data on UGCG inhibition and EM. …”
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  18. 1618

    Exploring the predictive values of SERP4 and FRZB in dilated cardiomyopathy based on an integrated analysis by Bin Qi, Hai-Yan Wang, Xiao Ma, Yu-Feng Chi, Chun Gui

    Published 2024-10-01
    “…Artificial neural networks were used to compare with known genes and to develop new diagnostic models. 240 population blood samples were collected and expression of hub genes was verified in these samples using RT-PCR and demonstrated by Nomogram. …”
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  19. 1619

    Bootstrapping Enhanced Model for Improving Soil Nitrogen Prediction Accuracy in Arid Wheat Fields by Qassim A. Talib Al-Shujairy, Suhad M. Al-Hedny, Mohammed A. Naser, Sadeq Muneer Shawkat, Ahmed Hatem Ali, Dinesh Panday

    Published 2025-04-01
    “…The performance of the proposed bootstrapping-enhanced random forest (RF) model was compared to standard RF models for soil N prediction, and outlier samples were analyzed to assess the impact of soil conditions on model performance. …”
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  20. 1620

    Evaluation of safe utilization of l-threonine for supplementation in healthy adults: a randomized double blind controlled trial by Hideki Matsumoto, Naoki Miura, Masaki Naito, Rajavel Elango

    Published 2025-05-01
    “…Healthy male adults (age 42.9) ingested randomly placebo or different doses of L-threonine (0, 3, 6, 9, 12 g/day) for 4 weeks using a crossover design. …”
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    Article