نتایج جستجو برای: dropouts

تعداد نتایج: 1768  

2008
Daniel E. Quevedo Eduardo I. Silva

This paper presents a novel design strategy for networked control systems, where a centralized controller needs to divide its attention between various actuators. Communication is via an unreliable network affected by data-dropouts and which allows access to only one actuator node at a time. To achieve good performance, control and network protocol are co-designed and signal predictions are sen...

Journal: :Psychological reports 1998
M Q Wang E C Fitzhugh J M Eddy R C Westerfield

The purpose of this study was to examine the association of beliefs and attitude related to smoking and smoking behavior among school dropouts in a national sample (weighted N = 492,352). The self-reported smoking rate for school dropouts was 58.3%. Those who were most positive about smoking (such as smoking helps people reduce stress and relax, reduce boredom) were more likely to be smokers (p...

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2013
K Hicke X Porte I Fischer

We implement a method to identify the deterministic nature of specific events in the dynamics of a semiconductor laser subject to time-delayed optical feedback. Specifically, we study the power dropouts in the low-frequency fluctuations regime on an individual event basis and identify whether the underlying dominant mechanism is deterministic. Our approach is based on sychronization with a twin...

2000
Kelly Bedard

Using quantile regressions, this paper provides evidence that the relationship between school inputs and wages varies across points in the conditional wage distribution and educational attainment levels. Although smaller classes generally have a positive return for individuals at high quantiles, they have either no impact or a negative impact at low quantiles. Similarly, while more highly paid ...

2011
George J. Borjas Jeffrey Grogger Gordon H. Hanson

The wage impact of immigration depends crucially on the elasticity of substitution between similarly skilled immigrants and natives and the elasticity of substitution between high school dropouts and graduates. This paper revisits the estimation of these elasticities. The U.S. data indicate that equally skilled immigrants and natives are perfect substitutes. The value of the second elasticity d...

Journal: :Journal of biopharmaceutical statistics 2010
Jung-Ying Tzeng Wenbin Lu Mark W Farmen Youfang Liu Patrick F Sullivan

We propose a variety of methods based on the generalized estimation equations to address the issues encountered in haplotype-based pharmacogenetic analysis, including analysis of longitudinal data with outcome-dependent dropouts, and evaluation of the high-dimensional haplotype and haplotype-drug interaction effects in an overall manner. We use the inverse probability weights to handle the outc...

Journal: :Appetite 2009
Fernando Fernàndez-Aranda Eva M Alvarez-Moya Cristina Martínez-Viana Isabel Sànchez Roser Granero Eva Penelo Laura Forcano Eva Peñas-Lledó

We aimed to examine baseline predictors of treatment response in bulimic patients. 241 seeking-treatment females with bulimia nervosa completed an exhaustive assessment and were referred to a six-session psychoeducational group. Regression analyses of treatment response were performed. Childhood obesity, lower frequency of eating symptomatology, lower body mass index, older age, and lower famil...

Journal: :Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics 1999
J Mulet C R Mirasso

The statistics of power dropouts in semiconductor lasers subjected to delayed optical feedback have been numerically investigated using the Lang-Kobayashi model. The data from the numerical simulations have then been used to calculate the probability distribution functions, mean values, and return maps of the time that elapses between dropouts. In addition, the transition from the "low frequenc...

Journal: :International Journal on School Disaffection 2011

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