Results 211 to 220 of about 2,008,361 (265)

Excitons: Linear and non-linear optical effects

Il Nuovo Cimento D, 1993
Selection rules and polarization dependence properties of one- and two-photon optical spectrocopies to exciton states in semiconductors are briefly discussed. The non-local effects in the description of the exciton in semiconductors are also considered and their importance is shown by presenting a gauge-invariant calculation of the two-photon ...
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Linear Mixed-Effects Model

2012
In Chap.10, we presented linear models (LMs) models with fixed effects for correlated data. They are examples of population-averaged models, because their mean-structure parameters can be interpreted as effects of covariates on the mean value of the dependent variable in the entire population. The association between the observations in a dataset was a
Andrzej Gałecki, Tomasz Burzykowski
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Inertial Effects on Linear and Locally Linear Flows

Aerosol Science and Technology, 1985
The dynamics of a suspension of particles in a gas may be characterized by the coexistence of a nearly equilibrated incompressible component (the gas) with a highly compressible component, which is often very far from equilibrium (the particle phase). The governing equations for such a system are complicated due to the coupling between the two phases ...
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Linear and generalized linear mixed effects models

2009
In Chapter 8 we learned about the concept of hierarchical modeling, a data analysis approach that is appropriate when we have multiple measurements within each of several groups. In that chapter, variation in the data was represented with a between-group sampling model for group-specific means, in addition to a within-group sampling model to represent ...
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The Linear Hall Effect

IBM Journal of Research and Development, 1957
A new method for handling the Boltzmann equation is used to obtain, without approximation, a general formula for the linear Hall effect in a solid electronic conductor. Expressions for the conductivity in no magnetic field and for the quadratic magnetoconductivity are also obtained.
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Linear Mixed Effects Models

2011
This chapter expands on linear models through the introduction of random effects, where the independent variables in the model include those variables that are fixed and those that vary across subjects. The general linear mixed effects model (LMEM) is introduced as methods for parameter estimation – maximum likelihood and restricted maximum likelihood.
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Surface linear magnetoelectric effect

Ferroelectrics, 1994
The ferroelectricity and linear magnetoelectric effect (LMEE) near the surface of magnetically ordered crystals of any symmetry have been studied. These effects are due to the change in value of magnetic moment near the surface and are described by an exchange magnetoelectric energy of the scalar form P(dM%n) where P is the electric polarization, M is ...
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Linear and Non-linear Effects

2022
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Linearized General relativity effects

This paper derives the weak-field general relativity effects on quantum harmonic oscillators and cavity-QED Rabi splitting. Using linearized metric perturbations, we show that measurable frequency shifts arise in high-Q photonic and phononic resonators.
Stieve, Jonathan, Stieve, Jonathan
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Survival outcomes used to generate version 9 American Joint Committee on Cancer staging system for anal cancer

Ca-A Cancer Journal for Clinicians, 2023
Elliot A Asare
exaly