Showing 1,421 - 1,440 results of 1,556 for search 'variables model composition', query time: 0.16s Refine Results
  1. 1421

    The evolution of sprinting performance: Technological and regulatory influences from 1976 to 2024 by Dariusz Tadeusz SKALSKI, Magdalena PROŃCZUK, Kinga ŁOSIŃSKA, Ewelina LULIŃSKA, Joanna MOTOWIDŁO, Petr STASTNY, Adam MASZCZYK, Grzegorz TRYBEK

    Published 2025-06-01
    “…Materials and methods: Utilizing a comprehensive dataset from international athletics federations, this research applies time series analysis, regression modeling, and variance testing to assess trends, gender disparities, and performance variability. …”
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  2. 1422

    Optimizing the Extraction, Identification, and Antioxidant Activity Analysis of Polyphenols from Carrot (Daucus carota L.) Preserve by Guowei LI, Yu SHI, Zhenghai ZHANG, Jingyi GE, Yanru JI, Jie SHI, Lianhui WEI, Qingli YANG, Yan DONG

    Published 2025-07-01
    “…Objective: To determine optimal extraction conditions for polyphenols from a carrot preserve and analyze their composition, compositional changes, and antioxidant activity. …”
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  3. 1423

    AI-based prediction for the strength, cost, and sustainability of eggshell and date palm ash-blended concrete by Quanwei Zhao, Qi Chen, AlAteah Ali H., Alfares Abdulgafor M., Alinsaif Sadiq, Mostafa Sahar A.

    Published 2025-05-01
    “…Eggshell powder (ESP) and date palm ash (DPA) are increasingly used as sustainable cement substitutes in cementitious composites. This study used multi-expression programming (MEP) to develop prediction models due to its advantage of yielding model equations. …”
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    Article
  4. 1424

    Item performance of the scale for the assessment and rating of ataxia in rare and ultra‐rare genetic ataxias by Alzahra Hamdan, Andrew C. Hooker, Xiaomei Chen, Andreas Traschütz, Rebecca Schüle, ARCA Study Group, EVIDENCE‐RND consortium, Matthis Synofzik, Mats O. Karlsson

    Published 2024-08-01
    “…SARA is now considered a primary end point in several ataxia treatment trials, but its underlying composite item measurement model has not yet been tested. …”
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    Article
  5. 1425

    Falls prevention interventions for community-dwelling older adults: systematic review and meta-analysis of benefits, harms, and patient values and preferences by Jennifer Pillay, Lindsay A. Gaudet, Sabrina Saba, Ben Vandermeer, Ashiqur Rahman Ashiq, Aireen Wingert, Lisa Hartling

    Published 2024-11-01
    “…For benefit outcomes, we employed random-effects NMA using a frequentist approach and a consistency model. Transitivity and coherence were assessed using meta-regressions and global and local coherence tests, as well as through graphical display and descriptive data on the composition of the nodes with respect to major pre-planned effect modifiers. …”
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  6. 1426

    Source-specific acute cardio-respiratory effects of ambient coarse particulate matter exposure in California’s Salton Sea region by Yaning Miao, William C Porter, Tarik Benmarhnia, Catherine Lowe, Timothy W Lyons, Caroline Hung, Charles Diamond

    Published 2025-01-01
    “…As particles emitted from different surface types can differ greatly in terms of composition, size distribution, and other properties, variability in the resulting health impacts of windblown particulates reaching communities in the region may likewise be source dependent. …”
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  7. 1427

    Longitudinal Lipid Trajectories and Progression of CKD in Children by Uwe Querfeld, Marietta Kirchner, Francesca Mencarelli, Karolis Azukaitis, Aysun Bayazit, Ali Duzova, Anke Doyon, Nur Canpolat, Ipek Kaplan Bulut, Lukasz Obrycki, Justine Bacchetta, Rukshana Shroff, Dusan Paripovic, Cengiz Candan, Jerome Harambat, Alev Yilmaz, Harika Alpay, Jun Oh, Hakan Erdogan, Claus P. Schmitt, Anette Melk, Franz Schaefer

    Published 2025-05-01
    “…There was no significant association of any of the lipid trajectories with CKD progression in Cox proportional hazard models. Variables consistently associated with CKD progression in models for each lipid at baseline and for lipid trajectories included age, a diagnosis other than CAKUT, eGFR at baseline, albuminuria, the serum albumin level, and diastolic blood pressure (BP). …”
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  8. 1428
  9. 1429

    Childhood adversities and 5-HTTLPR polymorphism as risk factors of substance use disorders: retrospective case-control study in Murcia (Spain) by Ronald C Kessler, Jose Maria Huerta, Fernando Navarro-Mateu, Mari Paz Quesada, Teresa Escámez, Mª José Alcaráz, Catherine Seiquer de la Peña, Diego Salmerón, Gemma Vilagut, Maria Dolores Chirlaque, Carmen Navarro, Mathilde Husky, Jordi Alonso, Salvador Martínez

    Published 2019-09-01
    “…In all, 142 cases and 531 controls were interviewed and a subsample of 114 cases (80.3%) and 329 controls (62%) provided a biological sample.Exposure A history of 12 childhood adversities, lifetime mental disorders and sociodemographic variables was assessed with the Composite International Diagnostic Interview (CIDI)version 3.0). …”
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  10. 1430
  11. 1431

    Evaluation of infant and young child feeding practices in low-income areas of Dhaka, Bangladesh: insights from a cross-sectional study using the 2021 WHO/UNICEF guideline by Saiful Islam, Sadia Sultana, Tasmia Tasnim, Kazi Muhammad Rezaul Karim, Md Hafizul Islam, Ali Abbas Mohammad Kurshed

    Published 2025-03-01
    “…Modified Poisson regression models were built to explore the relation between socio-demographic variables and each of the selected IYCF indicators (early initiation of breastfeeding (EIBF), exclusive breastfeeding (EBF), minimum dietary diversity (MDD), minimum meal frequency (MMF) and minimum acceptable diet (MAD)).Results More than two-thirds of the children were reported to follow appropriate breastfeeding practices (EIBF, 70.4% and EBF, 60.9%). …”
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  12. 1432

    Risk factors associated with the coexistence of stunting, underweight, and wasting in children under 5 from 31 sub-Saharan African countries by Eric Duku, Bright Opoku Ahinkorah, Abdul-Aziz Seidu, Richard Gyan Aboagye, Collins Adu, Iddrisu Amadu, James Boadu Frimpong, John Elvis Hagan Jnr., Belinda Ampah

    Published 2021-12-01
    “…We examined the risk of coexistence of stunting, underweight, and wasting using multinomial logistic regression models. The results were presented using relative risk ratios (RRR) with corresponding confidence intervals (CIs).Setting Thirty-one sub-Saharan African countries.Participants Children under age 5.Outcome measures The outcome variables were three child anthropometrics: stunting (height-for-age z-scores); underweight (weight-for-age z-scores) and wasting (weight-for-height z-scores).Results The prevalence of coexistence of stunting, underweight, and wasting varied across countries, with the highest (12.14%) and lowest (0.58%) prevalences of coexistence of stunting, underweight and wasting in Benin and Gambia respectively. …”
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  13. 1433

    Factors Affecting the Counterproductive Behaviors of Employees in the Organization; Emphasizing the Role of Organizational Embeddedness, Emotional Intelligence and Psychological Ow... by Marziyeh Dehghanizadeh, Mehdi Kheirandish, Hojjat Kheirandish

    Published 2025-03-01
    “…The instruments for collecting data in this research were standard questionnaires, and the analysis used was the structural equation modeling technique. The findings of the research showed that organizational justice had a negative significant effect on counterproductive behaviors directly and also through the mediating variable of organizational embeddedness. …”
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  14. 1434

    Aerosol single-scattering albedo derived by merging OMI/POLDER satellite products and AERONET ground observations by Y. Dong, J. Li, J. Li, Z. Zhang, C. Zhang, Q. Li

    Published 2025-08-01
    “…<p>Accurate global aerosol single-scattering albedo (SSA) data are critical for assessing aerosol radiative effects and identifying aerosol composition. However, current satellite-based SSA retrievals are both limited and highly uncertain, whereas the more accurate ground-based observations lack global coverage. …”
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  15. 1435

    Monitoring soil degradation using Sentinel-2 imagery and statistical analysis of spectral indices in a semi-arid watershed of the Moroccan High Atlas by Oussama Nait-Taleb, Sana Elomari, Kamal Abdelrahman, Maryem Ismaili, Mohammed S. Fnais, Jaouad El Atiq, Insaf Ouchkir, Ismail Karaoui, Samira Krimissa, Mustapha Namous, Mustapha Namous, Abdenbi Elaloui

    Published 2025-07-01
    “…These indices are aggregated to form a composite image (the independent variable), which is then subjected to regression analysis against the individual indices (the dependent variable) to determine correlation coefficients and coefficients of determination. …”
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  16. 1436

    Exploring the capabilities of hyperspectral remote sensing for soil texture evaluation by Mohammad Hosseinpour-Zarnaq, Mahmoud Omid, Fereydoon Sarmadian, Hassan Ghasemi-Mobtaker, Reza Alimardani, Pouya Bohlol

    Published 2025-12-01
    “…Hyperspectral remote sensing provides a broad range of spectral bands with up-to-date, cost-effective, and spatially explicit resolution for smart agriculture and environmental management. In this study, we modeled and generated a composite map of soil texture variability using PRISMA images collected from agricultural areas in Iran's dry and semi-arid regions. …”
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  17. 1437

    Associations between triglyceride glucose-body mass index and 30-day mortality in patients with hemorrhagic stroke: analysis of the MIMIC-IV database by Yuexin Lu, Yuexin Lu, Enjie Song, Enjie Song, Ruilin Chen, Ruilin Chen, Long Jing, Long Jing, Jiahao Tang, Jiahao Tang, Shunan Shi, Shunan Shi, Ming Wang, Ming Wang, Ming Wang, Ming Wang, Shu Wan, Shu Wan, Shu Wan, Shu Wan

    Published 2025-08-01
    “…Multivariable Cox regression, Kaplan–Meier analysis, and restricted cubic spline models assessed mortality risks at 30-day, 90-day, and 1-year intervals. …”
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  18. 1438

    Research on Ship Heave Motion Compensation Control Under Complex Sea State Environment Based on Improved Reinforcement Learning by ZHANG Qin, ZHOU Jingyi, WANG Xingyue, HU Xiong

    Published 2025-07-01
    “…The study employs principles of mechanics to furnish a comprehensive model of the wave compensation system, encompassing servo drives, servo motors, encoders, and hydraulic cylinders. …”
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  19. 1439

    Conduction Mechanisms in Polypyrrole-Copper Nanocomposites by K. Praveenkumar, T. Sankarappa, J.S. Ashwajeet, R. Ramanna, T. Sujatha, Jyoti Kattimani, G. Chandraprabha

    Published 2015-06-01
    “…Activation energy is found to be increasing with increase in copper content in the composites. Using data deviated from small polaron model, the density of states at Fermi level is calculated by employing the theory of variable range hopping of polarons due to Mott. …”
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  20. 1440

    Reliability analysis of landing gear operation based on improved support vector machine-based decomposed-coordinated by ZHANG Lei, CHEN Junyu, FENG Jun, FENG Yunwen, LIU Lei

    Published 2024-12-01
    “…The decomposition and coordination strategy decompose the composite failure problem into multiple mathematical models, and then builds the relationship between the total output response and the variable parameters according to the hierarchical relationship. …”
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