نتایج جستجو برای: intercept attribute
تعداد نتایج: 75756 فیلتر نتایج به سال:
Background: Research shows that mathematics and reading abilities are associated, and while there is evidence showing that individual differences in reading growth are due to environmental influences, this is the first study to examine the genetic and environmental influences on the growth of math ability, and whether or not they are similar to growth in reading ability. Methods: Participants w...
S. C. Draine and A. G. Greenwald (1998) demonstrated replicable unconscious semantic priming by combining a response window procedure, which increases priming effects by requiring rapid responding, and a regression analysis in which the regression intercept is a marker for unconscious cognition. The commentaries by B. A. Dosher (1998) and by P. M. Merikle and E. M. Reingold (1998) raise two que...
Centring is a commonly used technique in linear regression analysis. With centred data on both the responses and covariates, ordinary least squares estimator of slope parameter can be calculated from model without intercept. If subsample selected full data, typically uncentred. In this case, it still appropriate to fit intercept? The answer yes, we show that obtained intercept unbiased has smal...
Aas 11-531 Guidance Algorithms for Asteroid Intercept Missions with Precision Targeting Requirements
Rendezvous and intercept missions to smaller asteroids require precision guidance and control in the terminal mission phase. The zero-effort-miss (ZEM) and zero-effort-velocity (ZEV) information are used to formulate autonomous feedback guidance laws. A terminal-phase guidance strategy for a variety of intercept missions is developed. Different types of navigation information are assumed to be ...
The aim of this study was to estimate the effect of exposure to secondhand tobacco smoke on the incidence of lung adenocarcinoma in situ/minimally invasive adenocarcinoma (AIS/MIA). Data from seven case-control studies participating in the International Lung Cancer Consortium (ILCCO) were pooled, resulting in 625 cases of AIS/MIA and 7,403 controls, of whom 170 cases and 3,035 controls were nev...
Recently a number of studies have examined the quality of the data obtained from various systems used in the self-monitoring of blood glucose. Many of these studies have used parametric statistical techniques such as the Pearson product-moment correlation (r) and linear regression to evaluate the errors associated with self-monitoring results. These statistical methods, while well known and eas...
The current study evaluates the validity of the PEP computed from a fixed value for the Q-wave onset to R-wave peak (QR) interval and an R-wave peak to B-point (RB) interval that is estimated from the R-peak to dZ/dt-min peak (ISTI) interval. Ninety-one subjects participated in a 90min laboratory experiment in which a variety of often employed physical and mental stressors were presented and 31...
Theory predicts that stability should increase with diversity via several mechanisms. We tested predictions in a 5-year experiment that compared low-diversity exotic to high-diversity native plant mixtures under two irrigation treatments. The study included both wet and dry years. Variation in biomass across years (CV) was 50% lower in mixtures than monocultures of both native and exotic specie...
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