Showing 1,001 - 1,020 results of 18,849 for search 'sample random sampling', query time: 0.20s Refine Results
  1. 1001

    Coffee consumption and risk of breast cancer: A Mendelian randomization study. by Merete Ellingjord-Dale, Nikos Papadimitriou, Michail Katsoulis, Chew Yee, Niki Dimou, Dipender Gill, Dagfinn Aune, Jue-Sheng Ong, Stuart MacGregor, Benjamin Elsworth, Sarah J Lewis, Richard M Martin, Elio Riboli, Konstantinos K Tsilidis

    Published 2021-01-01
    “…<h4>Methods</h4>We conducted a two-sample Mendelian randomization (MR) analysis to evaluate the relationship between coffee consumption and breast cancer risk using 33 single-nucleotide polymorphisms (SNPs) associated with coffee consumption from a genome-wide association (GWA) study on 212,119 female UK Biobank participants of White British ancestry. …”
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  2. 1002

    Improving neurodevelopment in Zika-exposed children: A randomized controlled trial. by Randall Waechter, Kemi S Burgen, Bianca Punch, Roberta Evans, Karen Blackmon, Trevor Noël, Michelle Fernandes, Barbara Landon

    Published 2022-03-01
    “…<h4>Methodology/principal findings</h4>A randomized controlled trial was implemented in Grenada, West Indies using an existing ZIKV cohort surveillance study. …”
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  3. 1003

    A Mendelian randomization study: physical activities and chronic kidney disease by Rui Xiao, Li Dong, Bo Xie, Beizhong Liu

    Published 2024-12-01
    “…Two-sample MR genetically predicted that heavy DIY (do it yourself) (e.g., weeding, lawn mowing, carpentry, and digging) decreased the risk of CKD (odds ratio [OR] = 0.287, 95% CI = 0.117–0.705, p = 0.0065) and improved the level of eGFR (β = 0.036, 95% CI = 0.005–0.067, p = 0.021). …”
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  4. 1004

    Association of diuretics with falls and wrist fractures: a Mendelian randomization study by Fei Liu, Jun-ze Dai, Xiao-xi Deng, Ren-shuang Cao, Yong-zhong Cheng, Chao-lu Wang

    Published 2024-10-01
    “…Therefore, in this study, we determined the association of diuretics with falls and wrist fractures by Mendelian randomization.MethodsWe used a two-sample Mendelian randomization (MR) approach to evaluate the effects of the loop diuretics\potassium-sparing diuretics\thiazide diuretics (LDs\PSDs\TDs) on the risk of falls and wrist fracture using the three diuretic-associated genetically-predicted single nucleotide polymorphisms (SNPs) as genetic tools. …”
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  5. 1005

    Ayurveda Management of Menorrhagia (Raktapradara): Protocol for a Randomized Controlled Trial by Shivshankar Rajput, Shweta Mata, Upma Saxena, Sarada Ota, Bharti Gupta

    Published 2025-03-01
    “…MethodsThis ongoing study is an open-label, interventional, randomized controlled trial, with a sample size of 140 in the treatment and control groups combined (including 20% dropouts), and will be carried out within the duration of 36 months. …”
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  6. 1006

    Based on Mendelian Randomization to Explore the Causal Relationship with Insomnia and Gut Microbiota by GUO Yumeng, CUI Yanglin, ZHANG Xianzhong

    Published 2025-03-01
    “…The gut microbiota is considered to be a risk factor for insomnia, but there is a relative lack of evidence to accurately recognize the relationship between gut microbiota and insomnia. Objective Using two-sample Mendelian randomization as a research methodology to explore the causal relationship between gut microbiota and insomnia. …”
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  7. 1007

    Topical for Postoperative Wound Healing: A Prospective Randomized Controlled Trial by Joshua T. Chew BEng(Hons), MD, Joshua J. Xu MD, MSc, Thomas A. J. Goff MBCHb, FRCS, Karen A. Fogarty MN, MAHP, Michael J. Symes BPhysio(Hons), MBBS(Hons), MPH, FRACS, FAOrthA, Brahman S. Sivakumar MBBS, BSci(Med), MS, MSc, FRACS, FAOrthA, PFET, Andrew P. Wines MBBS, FRACS, FAOrthA

    Published 2025-06-01
    “…Conclusion: Topical Urucu ointment demonstrated promising early improvements in POSAS scores from both patients and observers, particularly in pigmentation and pliability domains, but findings should be interpreted cautiously because of the small sample size and short follow-up. Level of Evidence: Level I, randomized controlled trial.…”
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  8. 1008

    The causal relationship between gut microbiota and tinnitus based on Mendelian randomization by LIANG Yinfei, ZHOU Jingshi, ZHANG Shuqi, LI Lingwei, GU Jing, WEN Zhiyang, WU Dongxue, LI Zhicheng, ZENG Xiangli

    Published 2024-10-01
    “…Objective To explore the causal relationship between gut microbiota and tinnitus based on Mendelian randomization (MR) research method. Methods Data on the gut microbiota in individuals from the genome wide association study (GWAS) (n=18, 340) using the MiBioGen consortium, and the summary statistical data of tinnitus were obtained from published data in the UK Biobank for a two sample MR study. …”
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  9. 1009

    Non-intrusive Industrial Load Identification Based on Random Forest Algorithm and Steady-State Waveform by Jian WANG, Shuhui YI, Junjie LIU, Jian LIU

    Published 2022-02-01
    “…Then, by using the high-dimensional data of the steady-state waveform as the sample data, the bootstrap sampling method and the CART algorithm in the random forest algorithm are used to generate multiple decision trees. …”
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  10. 1010

    Walnut Consumption Improves Sleep Quality: A Randomized-Controlled Trial by Maria Izquierdo-Pulido, María Fernanda Zerón-Rugerio, Aradeisy Ibarra-Picón, María Diez-Hernández, Francisco Pérez-Cano, Trinitat Cambras

    Published 2024-02-01
    “…Furthermore, at the end of the intervention, the concentration of 6-sulfatoxymelatonin in urine samples from 20:00 to 23:00 was significantly higher (<i>p</i> = 0.024), whilst no differences were shown between the baseline and control conditions. …”
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  11. 1011

    The causal impact of smoking behavior on osteoarthritis: a Mendelian randomization analysis by Qiang Xiao, Susu Dong, Yafen Tan, Xuan Zhang, Lu Yao, Qiuping Li, Tianli Wang

    Published 2025-01-01
    “…The purpose of this study was to use Mendelian randomization (MR) analysis to investigate the causal relationship between smoking phenotypes and OA risk from a genetically informed standpoint.MethodsAs instrumental variables (IVs) based on single nucleotide polymorphisms (SNPs), this study used the summary-level data of corresponding genome-wide association study (GWAS) for five smoking phenotypes involving 1,694,781 samples. …”
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  12. 1012

    A two-stage random-effects estimator for meta-analyses of the value per statistical life. by Stephen C Newbold, Chris Dockins, Nathalie Simon, Kelly Maguire, Abdullah Muhammad Sakib

    Published 2025-01-01
    “…The meta-estimation approach accommodates unbalanced panels with one or multiple observations from each independent group of primary estimates, and distinguishes between sampling and non-sampling sources of error, both within and between groups. …”
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  13. 1013

    ANALYSIS OF GENETIC DIVERSITY OF SOME OLIVEGENOTYPES USING RANDOM AMPLIFIED POLYMORPHIC DNA (RAPD) MARKERS by Asmaa A. Al-Obeide, Akeel H. Al-Assie

    Published 2019-03-01
    “…The total number of loci defined by the primer was 99 loci, of which 18 were general sites for all samples and 81 different locations. (OPP-01, OPM-15, OPK-13,1700bp) highest, and the lowest partial size in the primers [100 bpOPH-14, OPG-05] The variance between the samples studied was highest, as OPZ-08 (9.0), and less than in OPM-03 (2.1) The ability to discriminate for the primers was characterized by the OPZ-08 primer with a maximum discriminating higher of 9.0. …”
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  14. 1014

    Expressions for the First Two Moments of the Range of Normal Random Variables with Applications to the Range Control Chart by Don G. Wardell

    Published 2025-05-01
    “…A common and simple estimate of variability is the sample range, which is the difference between the maximum and minimum values in the sample. …”
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  15. 1015

    Financial Account Audit Early Warning Based on Fuzzy Comprehensive Evaluation and Random Forest Model by Yuting Zhao, Yupeng Fang

    Published 2022-01-01
    “…Obtain the trained random forest model. Finally, input the prediction sample data into the trained random forest model to make decisions on the scene application. …”
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  16. 1016

    A population spatialization method based on the integration of feature selection and an improved random forest model. by Zhen Zhao, Hongmei Guo, Xueli Jiang, Ying Zhang, Changjiang Lu, Can Zhang, Zonghang He

    Published 2025-01-01
    “…Compared with MDA-RF, the prediction accuracy of the improved RF built on the same subset increased by 1.7%, indicating that improving the bootstrap sampling of random forest by using the K-means++ clustering algorithm can enhance model accuracy to some extent. …”
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  17. 1017

    Smooth predictions for age-period-cohort models: a comparison between splines and random process by Connor Gascoigne, Andrea Riebler, Theresa Smith

    Published 2025-07-01
    “…For the simulated and real-world data, we compared the results for both in-sample (estimation) and out-of-sample (forecasting) prediction. …”
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  18. 1018

    PERFORMANCE DEGRADATION ASSESSMENT OF ROLLING BEARING BASED ON SINGLE RING THEOREM IN RANDOM MATRIX THEORY by SHAN Qiang, NI GuangXian, WANG Heng

    Published 2022-01-01
    “…Firstly, through segmentation, randomization, amplification and dimensional reconstruction of the bearing sampling data, a high-dimensional random matrix of the bearing at the current moment is established; Secondly, given the good high-dimensional data processing ability of random matrix theory, the distribution of eigenvalues of bearing random matrix is investigated by using the single ring theorem. …”
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  19. 1019

    Utilization of Stockwell Transform and Random Forest Algorithm for Efficient Detection and Classification of Power Quality Disturbances by T. Ravi, K. Sathish Kumar, C. Dhanamjayulu, Baseem Khan

    Published 2023-01-01
    “…The ST is employed to extract relevant features from the PQD signals, which are subsequently utilized as input for the random forest classifier. The classifier employs bootstrapping sampling to generate multiple training sets from the original dataset. …”
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  20. 1020

    Impact of an improved random forest-based financial management model on the effectiveness of corporate sustainability decisions by Jianhui Zhang

    Published 2024-12-01
    “…Synthetic minority oversampling technique is used to optimize the financial management model and reduce the calculation deviation of the model through its sampling ability. At the same time, the prediction index system is proposed to improve the analysis ability of the financial management model. …”
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