Showing 6,481 - 6,500 results of 6,894 for search '"nonlinear"', query time: 0.08s Refine Results
  1. 6481

    Impact of endometrial thickness and its combined effect with maternal age on singleton adverse neonatal outcomes in frozen–thawed embryo transfer cycles by Jie Wang, Jie Wang, Lina Gao, Lina Gao, Qiaoyun Huang, Qiaoyun Huang, Weihua Jiang, Weihua Jiang, Linjun Chen, Linjun Chen, Shanshan Wang, Shanshan Wang

    Published 2025-01-01
    “…Among women aged over 35, EMT of 9.6–10.5 mm was associated with a significantly lower incidence of LBW compared to thinner EMT, without increasing the risk of ANOs related to thicker EMT.ConclusionsOur study demonstrated the independent nonlinear impact of EMT on PTB, EPTB, LGA, and LBW. …”
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  2. 6482

    The maturation of infant and toddler visual cortex neural activity and associations with fine motor performance by Katharina Otten, J. Christopher Edgar, Heather L. Green, Kylie Mol, Marybeth McNamee, Emily S. Kuschner, Mina Kim, Song Liu, Hao Huang, Marisa Nordt, Kerstin Konrad, Yuhan Chen

    Published 2025-01-01
    “…Associations between VER measures and developmental quotient (DQ) scores in the cognitive/visual and fine motor domains were also examined. Results showed a nonlinear decrease in N1m and P1m latency as a function of age, characterized by rapid changes followed by slower progression, with the N1m latency plateauing at 6–7 months and the P1m latency plateauing at 8–9 months. …”
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  3. 6483

    Ethnic and racial discrimination in maternal health care in Mexico: a neglected challenge in the search for universal health coverage by Edson Serván-Mori, Sergio Meneses-Navarro, Rocío García-Díaz, Diego Cerecero-García, David Contreras-Loya, Octavio Gómez-Dantés, Arachu Castro

    Published 2025-01-01
    “…We used the Blinder-Oaxaca decomposition for nonlinear regression models to quantify inequities in ECMH due to ethnic-racial discrimination, defined as differences in outcomes attributable to differential treatment. …”
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  4. 6484

    Spectrum and Location of Ongoing Extreme Particle Acceleration in Cassiopeia A by Jooyun Woo, Kaya Mori, Charles J. Hailey, Elizabeth Spira-Savett, Aya Bamba, Brian W. Grefenstette, Thomas B. Humensky, Reshmi Mukherjee, Samar Safi-Harb, Tea Temim, Naomi Tsuji

    Published 2025-01-01
    “…Both electron spectra are naturally explained by the recently developed modified nonlinear diffusive shock acceleration (mNLDSA) mechanism. …”
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  5. 6485

    Association of dietary quality and mortality in the non-alcoholic fatty liver disease and advanced fibrosis populations: NHANES 2005–2018 by Xingyong Huang, Xiaoyue Zhang, Xuanyu Hao, Tingting Wang, Peng Wu, Lufan Shen, Yuanyuan Yang, Wenyu Wan, Wenyu Wan, Wenyu Wan, Kai Zhang

    Published 2025-01-01
    “…After a median follow-up of 89 months, it was found that higher scores on the aMED (HR 0.814, 95% CI 0.681–0.972), HEI-2020 (HR 0.984, 95% CI 0.972–0.997), DASH (HR 0.930, 95% CI 0.883–0.979), and AHEI (HR 0.980, 95% CI 0.966–0.995) were associated with lower mortality risks, while DII scores (HR 1.280, 95% CI 1.098–1.493) indicated an increased risk of mortality. Additionally, a nonlinear relationship was identified solely between AHEI scores and all-cause mortality in NAFLD patients. …”
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    Article
  6. 6486

    Cross-sectional and longitudinal associations between serum vitamin D and continuous metabolic syndrome score among children and adolescents: roles of levels of inflammation in per... by Yanyan Li, Zhuang Ma, Yan Li, Ting Xiong, Ziyang Zhang, Bingxuan Kong, Wenlong Lu, Xiu Zhao, Rongfei Zheng, Yuhan Tang, Ping Yao, Zhe Su, Yuanjue Wu, Jingfan Xiong

    Published 2025-01-01
    “…Results The RCS indicated a negative linear association between serum 25(OH)D levels and CMSRS (P-overall = 0.0066, P-nonlinear = 0.1393). GLM revealed that compared to Q1, with the quartiles of serum 25(OH)D concentrations increase, the β value ranged from 0.028 (95% CI: − 0.093, 0.037) to 0.001(95%CI: − 0.067, 0.069), and then to -0.074 (95%CI: -0.146, -0.003, P for trend = 0.0659). …”
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  7. 6487

    Treatment of mine water containing ammonia nitrogen by sodium hexametaphosphate modified zeolite by Liping ZHANG, Xiang HU, Weiwei WANG, Wenbo LEI, Huitong LI, Huaran SUN, Yongqi ZHAN, Zeyu LIAN

    Published 2024-12-01
    “…Pseudo-first-order, pseudo-second-order, and Elovich kinetic nonlinear fitting suggested that both natural zeolite and SHMP−NZ adsorption of NH4+—N is better aligned with the pseudo-second-order kinetic model. …”
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  8. 6488

    A topographically controlled tipping point for complete Greenland ice sheet melt by M. Petrini, M. Petrini, M. D. W. Scherrenberg, L. Muntjewerf, L. Muntjewerf, M. Vizcaino, R. Sellevold, G. R. Leguy, W. H. Lipscomb, H. Goelzer

    Published 2025-01-01
    “…In our simulations, a small change in the initial SMB forcing (from 255 to 230 <span class="inline-formula">Gt yr<sup>−1</sup></span>) and global mean warming above pre-industrial levels (from +3.2 to +3.4 <span class="inline-formula">K</span>) causes an abrupt change in the GrIS final volume (from 50 % mass to nearly complete deglaciation). This nonlinear behaviour is caused by the SMB–elevation feedback, which responds to changes in surface topography due to surface melt and GIA. …”
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  9. 6489

    Analyzing power errors in the optical pumping system of atomic spin comagnetometers by Jiale QUAN, Ye LIU, Longyan MA, Wenfeng FAN, Wei QUAN

    Published 2025-03-01
    “…To address this gap, this study simplified the nonlinear dynamics of the K–Rb–21Ne SERF comagnetometer into a linear time-invariant system using Taylor expansion. …”
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  10. 6490

    Multi-metal mixture exposure and cognitive function in urban older adults: The mediation effects of thyroid hormones by Zhuoqi Zhu, Juanhua Li, Yang Peng, Ning Qin, Jiemei Li, Ying Wei, Biwen Wang, Yunfei Liao, Huaicai Zeng, Lu Cheng, Han Li

    Published 2025-01-01
    “…The General Linear Model (GLM) showed negative correlations between MMSE scores and titanium (Ti), copper (Cu), rubidium (Rb), and molybdenum (Mo), and positive correlations with selenium (Se) and barium (Ba). Nonlinear inverse U-shaped associations between Mo, Rb, and MMSE scores were identified using Restricted Cubic Splines (RCS) and Bayesian Kernel Machine Regression (BKMR). …”
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    Article
  11. 6491

    Association between remnant cholesterol (RC) and endometriosis: a cross-sectional study based on NHANES data by Zeru Chen, Ruixuan Li, Jiajie Guo, Xiaorong Ye, Yang Zhou, Mingzhu Cao

    Published 2025-01-01
    “…Lastly, both linear and nonlinear relationships were validated using generalized additive models (GAM), while dose-response connections were investigated through restricted cubic spline models. …”
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  12. 6492

    Investigation of divertor heat flux characteristics under the influence of resonant magnetic perturbations on EAST by Ruirong Liang, Xianzu Gong, Bin Zhang, Manni Jia, Hua Yang, Qun Ma, Youwen Sun, Zhendong Yang, Yunchan Hu, Zuhao Wang, Wei Wang, Yutong Guo, Jinwen Song, Jinping Qian, the EAST Team

    Published 2025-01-01
    “…As a fundamental prerequisite, it is necessary to understand the characteristics of the heat flux distribution under the applied RMP field, which will be studied in this paper. The nonlinear phenomenon of strike point splitting was found to be strongly dependent on the plasma response under RMP. …”
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  13. 6493

    Hooks, Lines, and Sinkers: How Active Galactic Nucleus Feedback and Cosmic-Ray Transport Shape the Far-infrared–Radio Correlation of Galaxies by Sam B. Ponnada, Rachel K. Cochrane, Philip F. Hopkins, Iryna S. Butsky, Sarah Wellons, N. Nicole Sanchez, Cameron Hummels, Yue Samuel Lu, Dušan Kereš, Christopher C. Hayward

    Published 2025-01-01
    “…While many theories have been proposed in order to explain the emergence and maintenance of the FRC across a gamut of galaxy properties and redshift, the nonlinear physics at play remain unexplored in full complexity and within a cosmological context. …”
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  14. 6494

    Optimization of the Screw Conveyor Device Based on a GA-BP Neural Network by Qiang Guo, Yunpeng Zhuang, Houzhuo Xu, Wei Li, Haitao Li, Zhidong Wu

    Published 2025-01-01
    “…In this paper, we analyze the force and velocity components acting on the straw, give the design principles for the screw’s conveying parameters under the premise of ensuring maximum conveying capacity and minimum power consumption, and determine the optimal design variables, objective functions, and constraints according to the specific optimization problem; we establish a specific mathematical model, and introduce algorithm optimization for nonlinear problems with many variables and large amounts of calculations. …”
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  15. 6495

    Impact of ambient temperatures on Alzheimer's disease and other dementia mortality among elderly patients aged 60 years and older in China by Rui Zhang, Lu Sun, Ai-Nan Jia, Si-Yuan Wu, Yu Wang, Song-Wang Wang, Qing Guo, Yu-Jie Meng, Juan Liang, Wan Huang, Yong-Hong Li, Jing Wu

    Published 2024-12-01
    “…Using an individual-level time-stratified case-crossover study design, the relationships between ambient temperatures and AD and other dementia mortality were quantified using conditional logistic regression combined with the distributed lag nonlinear model. In addition, the attributable fractions (AFs) of mortality due to non-optimal ambient temperatures were calculated. …”
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    Article
  16. 6496

    Relationship between changes in the triglyceride glucose-body mass index and frail development trajectory and incidence in middle-aged and elderly individuals: a national cohort st... by Kai Guo, Qi Wang, Lin Zhang, Rui Qiao, Yujia Huo, Lipeng Jing, Xiaowan Wang, Zixuan Song, Siyu Li, Jinming Zhang, Yanfang Yang, Jinli Mahe, Zhengran Liu

    Published 2024-08-01
    “…Logistic and Cox regression models were used to analyse the associations between the TyG-BMI and FI trajectory and frail incidence. Nonlinear relationships were explored using restricted cubic splines, and a linear mixed-effects model was used to evaluate FI development speed. …”
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    Article
  17. 6497

    A General Framework for Closed Loop Negative Feedback Multivariable Physiological Control Systems: Existence, Uniqueness, and Stability of Homeostatic Equilibrium Points by Anna Procopio, Annarita Tedesco, Fabrizio Lo Regio, Giuseppe Cesarelli, Leandro Donisi, Carlo Ricciardi, Alessio Merola, Alfonso Maria Ponsiglione, Maria Romano, Francesco Montefusco, Carlo Cosentino, Francesco Amato

    Published 2025-01-01
    “…To this regard, in this paper, the existence, possible uniqueness and stability properties of the homeostatic equilibrium points of the general model are investigated; the theoretical framework is then illustrated through two real-world case-studies: (i) the PI3K/AKT/mTOR pathway nonlinear dynamics, a critical regulator of cellular growth, proliferation, and survival; (ii) the control mechanism of the neuromuscular stretch reflex, among the prime triggers implicated in postural control. …”
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  18. 6498

    Association between non-insulin-based insulin resistance surrogate makers and Helicobacter pylori infection: a population-based study by Jiayu Qiu, Yueming Yu, Dingwei Liu, Sihai Chen, Youhua Wang, Jianxiang Peng, Jinliang Xie, Chengyun Wu, Feng Zhou, Hui Fang, Qirui Lai, Yong Xie

    Published 2025-01-01
    “…However, a positive nonlinear correlation was observed between TG/HDL-C ratio and H. pylori infection in all three models. …”
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  19. 6499

    The Anisotropic Time-Dependent Properties and Constitutive Model Analysis of Carbonaceous Slate with Different Foliation Angles by Yuanguang Zhu, Xuanyao Wang, Bin Liu, Haoyuan Xue

    Published 2024-12-01
    “…The maximum <i>σ<sub>L</sub></i> occurred at <i>β</i> = 90° and the minimum was observed at <i>β</i> = 15°. A fractional nonlinear creep model (FNC model) was developed. The sensitivity analysis reveals that the larger the fractional order <i>n</i> is, the <i>t<sub>d</sub></i> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><msub><mrow><mover accent="true"><mrow><mi>ε</mi></mrow><mo>˙</mo></mover></mrow><mrow><mi>s</mi></mrow></msub></mrow></semantics></math></inline-formula> increase. …”
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  20. 6500

    Association of blood cadmium and physical activity with mortality: A prospective cohort study by Yilin Chen, Cien Zhen, Lin Zeng, Hongliang Feng, Jinyu Wang, Qi Yong H. Ai, Sizhi Ai, Jihui Zhang, Yannis Yan Liang, Huachen Xue, Yujing Zhou

    Published 2025-01-01
    “…Restricted cubic spline analyses were employed to investigate the nonlinear relationships between blood cadmium and PA levels and mortality risks. …”
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    Article