Showing 541 - 560 results of 1,556 for search '(variable OR variables) model composition', query time: 0.19s Refine Results
  1. 541

    Genome-scale metabolic modelling of human gut microbes to inform rational community design by Juan Pablo Molina Ortiz, Dale David McClure, Andrew Holmes, Scott Alan Rice, Mark Norman Read, Erin Rose Shanahan

    Published 2025-12-01
    “…While DRC supplementation offers a means to modulate the microbiome therapeutically, its effectiveness is often limited by the microbial community’s complexity and individual variability in microbiome functionality. We utilized genome-scale metabolic models (GEMs) from the AGORA collection to provide a system-level overview of the metabolic capabilities of human gut microbes in terms of carbohydrate trophic networks and propose improved therapeutic interventions, based on microbial community design. …”
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  2. 542

    Association between composite dietary antioxidant index and Epstein–Barr virus infection in children aged 6–19 years in the United States: from the national health and nutrition ex... by Wei Cheng, Yunfei Wang, Nan Ding, Rutao Xie

    Published 2025-01-01
    “…Data on EBV results, CDAI, and several other essential variables were analyzed.ResultsCompared with that of individuals in Q3 (−1.627–−0.2727) in the multivariate weighted logistic regression model with full adjustment for confounding variables, the adjusted odds ratio (OR) for CDAI and EBV infection in those in Q1 (−6.613 − −2.9157), Q2 (−2.9158–−1.626), Q4 (−0.2728–1.7601), and Q5 (1.7602–21.419) was 1.41 (95% CI: 1.01–1.96, p = 0.043), 1.10 (95% CI: 0.84–1.45, p = 0.447), 1.14 (95% CI: 0.86–1.51, p = 0.343), and 1.41 (95% CI: 1.01–1.98, p = 0.044), respectively. …”
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  3. 543

    Optimization of the methanolysis of lard oil in the production of biodiesel with response surface methodology by Chinyere B. Ezekannagha, Callistus N. Ude, Okechukwu D. Onukwuli

    Published 2017-12-01
    “…A total of 30 individual experiments were conducted and designed to study these process variables. A statistical model predicted that the highest conversion yield of lard biodiesel would be 96.2% at the following optimized reaction conditions: reaction temperature of 65 °C, catalyst amount of 1.25%, time of 40 min, methanol to oil molar ratio of 6:1 at 250 rpm. …”
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  4. 544

    Promoting sustainable mobility: A multi-theoretical exploration of attitude-behavior dynamics and consumption value in electric vehicle adoption in India by Amit Kumar Gupta, Ashutosh Dash, Kirti Sharma

    Published 2025-09-01
    “…Confirmatory composite analysis (CCA) strengthens the model's reliability, reinforcing its contribution to environmental sustainability and cleaner mobility solutions.…”
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  5. 545

    Application of response surface methodology (RSM) for experimental optimization in biogenic silica extraction from rice husk and straw ash by Yigezu Temesgen Zewide, Temesgen Atnafu Yemata, Adane Adugna Ayalew, Hawi Jihad Kedir, Asab Alemneh Tadesse, Asmarech Yeshaneh Fekad, Alemayehu Keflu Shibesh, Fentahun Adamu Getie, Tegen Dagnew Tessema, Tessera Alemneh Wubieneh, Wondmagegn Wonago Kululo, Muluken Tilahun Mihiret

    Published 2025-01-01
    “…The effects of three independent ash digestion process factors like sodium hydroxide concentration (1–3 M), temperature (60–120 °C) and time (1–3 h), for silica production from the mixture of rice husk (RH) and rice straw (RS) were studied. A quadratic model was used to correlate the interaction effects of the independent variables for maximum silica production at the optimum process parameters by employing central composite design (CCD) with RSM. …”
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  6. 546
  7. 547

    Analytical model of a dynamic system «pulse-width converter – DC motor with independent excitation» by Alexander S. Glazyrin, Evgeniy I. Popov, Vladimir A. Kopyrin, Sergey N. Kladiev

    Published 2023-12-01
    “…The proposed analytical model is recommended for investigation of dynamic modes of DC motors with independent excitation and allows one to analytically apply methods of automatic control theory to a dynamic system, as well as obtain complete information about the spectral composition of state variables.…”
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  8. 548

    TROLL 4.0: representing water and carbon fluxes, leaf phenology, and intraspecific trait variation in a mixed-species individual-based forest dynamics model – Part 2: Model evaluat... by S. Schmitt, S. Schmitt, S. Schmitt, F. J. Fischer, J. G. C. Ball, N. Barbier, M. Boisseaux, D. Bonal, B. Burban, X. Chen, G. Derroire, G. Derroire, G. Derroire, J. W. Lichstein, D. Nemetschek, N. Restrepo-Coupe, S. Saleska, G. Sellan, P. Verley, G. Vincent, C. Ziegler, J. Chave, I. Maréchaux

    Published 2025-08-01
    “…Here we evaluate the performance of TROLL 4.0 for two Amazonian sites with contrasting soil and climate properties. We assessed the model's ability to represent forest structure, composition, and dynamics using lidar-derived spatial distribution of top canopy height and forest inventories combined with information on plant functional traits. …”
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  9. 549

    Assessment of Maintenance Strategies and Performance Prediction for Urban Roads Using IRI and HDM-4 Models by Harinder D, Yugendar Poojari, Venkatesh Noolu, Vamsi Dachepalli

    Published 2025-05-01
    “…However, before implementation, such HDM-4 model should be calibrated and validated. Since, in-situ variables greatly influence the rate at which each pavement distress initiates and propagates. …”
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  10. 550

    Helicobacter pylori‐related risk predictors of gastric cancer: The latest models, challenges, and future prospects by Seyedeh Zahra Bakhti, Saeid Latifi‐Navid, Reza Safaralizadeh

    Published 2020-07-01
    “…In addition, potential study‐level covariates and moderator variables (eg physical conditions, life styles, gastric microbiome, etc) linked to causal relationships, and their impact, should be recognized and controlled.…”
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  11. 551

    Assessing the developmental effects of fentanyl and impacts on lipidomic profiling using neural stem cell models by Cheng Wang, Jinchun Sun, Rohini Donakonda, Richard Beger, Leah E. Latham, Leihong Wu, Shuliang Liu, Joseph P. Hanig, Fang Liu

    Published 2025-06-01
    “…In the present study, commercially available human neural stem cells (NSCs) were used to model the effects of fentanyl on the developing human brain. …”
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  12. 552

    The need for advancing algal bloom forecasting using remote sensing and modeling: Progress and future directions by Cassia B. Caballero, Vitor S. Martins, Rejane S. Paulino, Elliott Butler, Eric Sparks, Thainara M. Lima, Evlyn M.L.M. Novo

    Published 2025-03-01
    “…As these blooms increase in frequency and size, there is an increasing need for forecasting models to accurately predict their occurrence and progression. …”
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  13. 553

    A new Maxwell model and its application in researching the compressive creep properties of recombinant bamboo. by Shanshan Shen, Qifeng Gao, Xiaolin Gong, Songsong Sun, Jiahong Fu

    Published 2025-01-01
    “…The main conclusion drawn from the research is that, compared with traditional commonly used models (Kelvin and Burgers), the newly proposed Maxwell model, which is based on the theory of the variable-order fractional derivative, can more accurately simulate the compressive strain creep growth property with relatively fewer parameters, and the stress level effect on the main model parameters can be accurately determined, which makes this approach valuable for actual engineering applications.…”
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  14. 554

    A machine learning–based risk prediction model for atrial fibrillation in critically ill patients by Laith Alomari, MD, Yaman Jarrar, MD, Zaid Al-Fakhouri, MD, Emmanuel Otabor, MBBS, Justin Lam, MD, Jana Alomari

    Published 2025-05-01
    “…A compact model was developed using 15 variables and 2 novel features—one identifying patients 70 years of age or older with sepsis and another representing a composite score of pre-existing cardiac risk factors. …”
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  15. 555

    Predicting physiologically-relevant oxygen concentrations in precision-cut liver slices using mathematical modelling. by S J Chidlow, L E Randle, R A Kelly

    Published 2022-01-01
    “…Despite being more physiologically relevant compared to in vitro models, precision cut liver slices are limited by the availability of healthy human tissue and experimental variability. …”
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  16. 556

    Attachment style, thought suppression, self-compassion and depression: Testing a serial mediation model. by Clara V Murray, Juno Irma-Louise Jacobs, Adam J Rock, Gavin I Clark

    Published 2021-01-01
    “…A second, post-hoc serial mediation model was tested (Model B), with the only difference being that attachment anxiety replaced attachment avoidance as the independent variable. …”
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  17. 557

    Modeling governance innovation under esg pressure: A DEMATEL–ANP approach to institutional complexity by Konstantina Ragazou, George Sklavos, Georgia Zournatzidou, Nikolaos Sariannidis

    Published 2025-09-01
    “…Conversely, indicators such as Women in Management and ESG Controversy Score function as outcome variables. The study redefines ESG governance as a dynamic and adaptive system and offers a replicable method for assessing innovation readiness in high-risk financial environments.…”
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  18. 558

    Lean manufacturing implementation in food and beverage SMEs in Tanzania: using structural equation modelling (SEM) by Juma M. Matindana, Mary J. Shoshiwa

    Published 2025-02-01
    “…Using Exploratory Factor Analysis (EFA) and Confirmatory Composite Analysis (CCA), data from 113 SMEs were analysed, revealing that lean tools and processes are strong predictors of improved output, with a significant portion of variance explained by the model. …”
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  19. 559

    AI-powered interpretable models for the abrasion resistance of steel fiber-reinforced concrete in hydraulic conditions by Muhammad Nasir Amin, Roz-Ud-Din Nassar, Siyab Ul Arifeen, Muhammad Tahir Qadir, Fahad Alsharari, Muhammad Iftikhar Faraz

    Published 2025-07-01
    “…This study utilizes variables such as hydraulic conditions, curing age, and concrete mixture proportions to develop predictive models for the attrition depth of concrete, employing machine learning approaches including gene expression programming (GEP) and multi-expression programming (MEP). …”
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  20. 560

    Advancing Precision Medicine for Hypertensive Nephropathy: A Novel Prognostic Model Incorporating Pathological Indicators by Yunlong Qin, Jin Zhao, Yan Xing, Zixian Yu, Panpan Liu, Yuwei Wang, Anjing Wang, Yueqing Hui, Wei Zhao, Mei Han, Meng Liu, Xiaoxuan Ning, Shiren Sun

    Published 2025-01-01
    “…Results: A total of 225 patients were included in this study, with 72 (32.0%) patients experiencing combined events after a median follow-up of 29.9 (16.6, 52.1) months. Six eligible variables (overall chronicity grade of renal pathology, eGFR, high-density lipoprotein cholesterol, hematocrit, monocyte, and stroke volume) were selected from clinical data and introduced into the RSF model. …”
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