45,081 research outputs found
Intolerance, Prejudice and Discrimination - A European Report
No full textZick A, Küpper B, Hövermann A. Intolerance, Prejudice and Discrimination - A European Report. FES-Projekt gegen Rechtsextremismus. Berlin: Friedrich-Ebert-Stiftung; 2011
Long time decay estimates in real Hardy spaces for evolution equations with structural dissipation
No full textIn this paper we derive asymptotic-in-time linear estimates in Hardy spaces Hp(Rn) for the Cauchy problem for evolution operators with structural dissipation. The obtained estimates are a natural extension of the known Lp- Lq estimates, 1 ≤ p≤ q≤ ∞, for these models. Different, standard, tools to work in Hardy spaces, are used to derive optimal estimates
Systematics and biodiversity of sharks, rays, and chimaeras (Chondrichthyes) of Taiwan
No full textDe Carvalho, Marcelo R., Ebert, David A., Ho, Hsuan-Ching, White, William T., Ebert, David A., Ho, Hsuan-Ching, White, William T., De Carvalho, Marcelo R. (2013): Systematics and biodiversity of sharks, rays, and chimaeras (Chondrichthyes) of Taiwan. Zootaxa 3752 (1): 3-4, DOI: http://dx.doi.org/10.11646/zootaxa.3752.1.
A class of dissipative wave equations with time-dependent speed and damping
No full textWe study the long time behavior of the energy for wave-type equations with time-dependent speed and damping: utt-λ(t)2δu+b(t)ut=0. We investigate the interaction between the speed of propagationλ (t) and the damping coefficient. b(t), showing how to describe the dissipative effect on the energy. We study a class of dissipations for which the equation keeps its hyperbolic structure and properties. © 2012 Elsevier Ltd
Lp − Lq estimates for a parameter-dependent multiplier with oscillatory and diffusive components
No full textIn this paper, we derive long time Lp−Lq decay estimates, in the full range 1≤p≤q≤∞, for time-dependent multipliers in which an interplay between an oscillatory component and a diffusive component with different scaling appears. We estimate ‖m(t,⋅)‖[email protected]@50d4f4b1 as t→∞ for multipliers of type m(t,ξ)=e±i|ξ|javax.xml.bind.JAXBElement@974d21t−|ξ|javax.xml.bind.JAXBElement@3d81aa6bt, and suitable perturbations, under the assumption that the scaling of the diffusive component is worse, i.e., θ>σ. These multipliers are, for instance, related to the fundamental solution to the Cauchy problem for the σ-evolution equation with structural damping: utt+(−Δ)σu+(−Δ)[Formula presented]ut=0,t≥0,x∈Rn, in the so-called non-effective case
1993-1994 T. R. Pearson
No full textT. R. Pearson, a.k.a. Rick Gavin, was born in Winston-Salem, North Carolina. He was a student at North Carolina State University, where he gained a B.A. and M.A. in English. He was the first recipient of the John and Renée Grisham Writer in Residence Fellowship. He is the acclaimed author of fourteen novels, including A Short History of a Small Place and Warwolf, and a dozen screenplays. Top of the Rock is his fifth nonfiction book. He lives in Virginia and Brooklyn, New York. (Photo credit: Marian Young)https://egrove.olemiss.edu/grisham_res/1026/thumbnail.jp
Introduction to the systematics and biodiversity of sharks, rays, and chimaeras (Chondrichthyes) of Taiwan
No full textEbert, David A., Ho, Hsuan-Ching, White, William T., De Carvalho, Marcelo R. (2013): Introduction to the systematics and biodiversity of sharks, rays, and chimaeras (Chondrichthyes) of Taiwan. Zootaxa 3752 (1): 5-19, DOI: http://dx.doi.org/10.11646/zootaxa.3752.1.
Hyperbolic-like estimates for higher order equations
No full textAbstractThe main goal of this paper is to derive long time estimates of the energy for the higher order hyperbolic equations with time-dependent coefficients. In particular, we estimate the energy in the hyperbolic zone of the extended phase space by means of a function f(t) which depends on the principal part and on the coefficients of the terms of order m−1. Then we look for sufficient conditions that guarantee the same energy estimate from above in all the extended phase space. We call this class of estimates hyperbolic-like since the energy behavior is deeply depending on the hyperbolic structure of the equation. In some cases, these estimates produce a dissipative effect on the energy
"Closing the R&D Gap, Evaluating the Sources of R&D Spending"
No full textBoth spending and tax policies have been implemented in the United States with the goal of stimulating private sector research and development (R&D). Karier questions whether current R&D policy, especially the research and experimentation tax credit, can contribute to closing the gap between nondefense expenditures on R&D in the United States and such expenditures in other countries, such as Japan and Germany. He also explores possible changes to our current R&D policy to make it more effective.
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