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Mostrando 801 - 820 Resultados de 16,685 Para Buscar 'Linear Time Base', tiempo de consulta: 1.77s Limitar resultados
  1. 801
    “…Data on types of intramural programs from 55 schools were obtained, baseline demographic characteristics were measured and data on physical activity and sport participation were collected on a sample of 4417 students. Hierarchical linear mixed regression models were used to estimate how changes in the type of intramurals associate with youth MVPA over time. (3) Regardless of participation, adding individual and team intramurals was significantly and positively associated with female MVPA in Y6. (4) The indirect, but positive relationship between adding individual and team intramurals and female MVPA may be explained by other characteristics of the school environment that are conducive to female MVPA.…”
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    Examining If Changes in the Type of School-Based Intramural Programs Affect Youth Physical Activity over Time: A Natural Experiment Evaluation
  2. 802
    “…In order to solve this problem, we proposed a seven-layer paper-based microfluidic chip, integrating the enzyme acetylcholinesterase (AChE) and chromogenic reaction. …”
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    Pesticide Residues Identification by Optical Spectrum in the Time-Sequence of Enzyme Inhibitors Performed on Microfluidic Paper-Based Analytical Devices (µPADs)
  3. 803
    “…The comparative experiments show that based on city level the Gradient Boosting prediction model has better prediction performance with mean absolute error (MAE) of 9 ug/m(3) and root mean square error (RMSE) of 10.25–16.76 ug/m(3), lower compared with the other three models, and based on season level four models have the best prediction performances in winter time and the worst in summer time. …”
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    Time series-based PM(2.5) concentration prediction in Jing-Jin-Ji area using machine learning algorithm models
  4. 804
    “…PURPOSE: Open-ended and iteration-based time trade-off (TTO) tasks can both be used for valuation of health states. …”
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    Online Artículo Texto
    Influence of elicitation procedure and phrasing on health state valuations in experience-based time trade-off tasks among diabetes patients in China
  5. 805
    “…This study aimed to develop a SYBR Green I-based duplex real-time polymerase chain reaction (PCR) assay for distinguishing FPV and FBoV-1 on the basis of the melting temperature of the PCR product. …”
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    Simultaneous detection of feline parvovirus and feline bocavirus using SYBR Green I-based duplex real-time polymerase chain reaction
  6. 806
    “…Here, we study the pH sensitivity of a green-fluorescence-protein (GFP)-based emitter (EGFP-Y145L/S205V) with the alkaline-shifted chromophore’s pKa and demonstrate that, in the pH range of 7.5–9.0, its fluorescence lifetime changes by a factor of ~3.5 in a quasi-linear manner in mammalian cells. …”
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    A Single Fluorescent Protein-Based Indicator with a Time-Resolved Fluorescence Readout for Precise pH Measurements in the Alkaline Range
  7. 807
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    Online Artículo Texto
    Time discrimination and change detection could share a common brain network: findings of a task-based fMRI study
  8. 808
    “…Background: Problematic smartphone use (PSU) has been associated with screen time in general, but little is known about the effect of different screen-based activities. …”
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    Self-Reported Screen Time on Social Networking Sites Associated With Problematic Smartphone Use in Chinese Adults: A Population-Based Study
  9. 809
    “…CONCLUSIONS: The real-time prognosis of LABC improves dynamically and non-linearly over time, and the novel CS-nomogram can provide real-time and personalized prognostic information with satisfactory clinical utility.…”
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    Conditional survival nomogram predicting real-time prognosis of locally advanced breast cancer: Analysis of population-based cohort with external validation
  10. 810
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    Tick-borne encephalitis (TBE) cases are not random: explaining trend, low- and high-frequency oscillations based on the Austrian TBE time series
  11. 811
    “…A series of multivariate linear models implementing a weighted and centered least squares estimator were used to assess the JITAI efficacy and effect. …”
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    The Dosing of Mobile-Based Just-in-Time Adaptive Self-Management Prompts for Caregivers: Preliminary Findings From a Pilot Microrandomized Study
  12. 812
    “…BACKGROUND: This study examined the strength, shape and direction of associations of accelerometer-assessed overall, school- and non-school-based moderate-to-vigorous physical activity (MVPA) and sedentary time (ST) with BMI among adolescents across the world. …”
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    Associations of accelerometer measured school- and non-school based physical activity and sedentary time with body mass index: IPEN Adolescent study
  13. 813
    “…CONCLUSIONS: We showed that the linear model did very well in reproducing the data with few parameters, but was not sufficiently robust and yielded unrealistic values upon extrapolation in time. …”
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    Robust non-linear differential equation models of gene expression evolution across Drosophila development
  14. 814
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    Non-linear optical measurement of the twist elastic constant in thermotropic and DNA lyotropic chiral nematics
  15. 815
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    A non-linear mathematical model using optical sensor to predict heart decellularization efficacy
  16. 816
    por Chen, Long, Zhang, Zhaoxi, Long, Ying
    Publicado 2021
    “…To reexamine the relationship between leisure-time physical activity (LTPA) and the built environment (BE), this paper takes advantage of the massive amount of data collected by an accelerometer and GPS-based fitness mobile app. …”
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    Association between leisure-time physical activity and the built environment in China: Empirical evidence from an accelerometer and GPS-based fitness app
  17. 817
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    Performance of Droplet Digital PCR in Non-Invasive Fetal RHD Genotyping - Comparison with a Routine Real-Time PCR Based Approach
  18. 818
    “…The aim of this ecological study based on a 12.5-year time series was to investigate the association of short-term exposure to PM with aerodynamic diameter ≤ 2.5 μm (PM(2.5)) and aerodynamic diameter ≤ 10 μm (PM(10)) with hospital admissions for respiratory diseases. …”
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    Effects of particulate matter on hospital admissions for respiratory diseases: an ecological study based on 12.5 years of time series data in Shanghai
  19. 819
    “…IPD counts at week t, conditional on the previous time point t−1, were assumed to be negative binomially distributed. …”
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    Estimating age-stratified influenza-associated invasive pneumococcal disease in England: A time-series model based on population surveillance data
  20. 820
    por George, K
    Publicado 2005
    “…A comparison, between this two-dimensional model and the one-dimensional non-linear dual-sorption model that exists in the literature, is done based on (1) the shape of the concentration profiles at various time levels, (2) the time required to reach the steady-state value of the concentration, (3) lag-time and (4) half-life.…”
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    A two-dimensional mathematical model of non-linear dual-sorption of percutaneous drug absorption
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