Results 21 to 30 of about 94,442 (173)

Persistent Chaos in High Dimensions

, 2005
An extensive statistical survey of universal approximators shows that as the dimension of a typical dissipative dynamical system is increased, the number of positive Lyapunov exponents increases monotonically and the number of parameter windows with ...
D. J. Albers, G. Benettin, H. Poincaré, J. C. Sprott, J. F. Alves, J. P. Crutchfield, J. Palis, K. Kaneko, P. Manneville, R. Mañé   +9 more
core   +2 more sources

Sharp anisotropic estimates for the Boltzmann collision operator and its entropy production [PDF]

, 2011
This article provides sharp constructive upper and lower bound estimates for the non-linear Boltzmann collision operator with the full range of physical non cut-off collision kernels ($\gamma > -n$ and $s\in (0,1)$) in the trilinear $L^2(\R^n)$ energy $$.
Gressman, Philip T., Strain, Robert M.
core   +2 more sources

Population and species neighbor identity impact trait–trait relationships and plant performance

Population Ecology, EarlyView.
We evaluated how populations and species identity influence plant performance and trait outcomes in mixtures, and assessed trait variation among populations of two forb species native to the western United States (Dieteria canescens and Heterotheca villosa) following three interaction treatments (single‐population monoculture, two‐population mixture ...
Alicia J. Foxx, Florian Fort, Andrea T. Kramer   +2 more
wiley   +1 more source

Four-Quark Condensates in Nucleon QCD Sum Rules

, 2007
The in-medium behavior of the nucleon spectral density including self-energies is revisited within the framework of QCD sum rules. Special emphasis is given to the density dependence of four-quark condensates. A complete catalog of four-quark condensates
Adami, B. Kämpfer, Birse, Birse, Bochkarev, Bordes, Braun, Celenza, Cohen, Colangelo, Dorokhov, Drukarev, Drukarev, Drukarev, Drukarev, Drukarev, Drukarev, Drukarev, Finelli, Finelli, Forkel, Furnstahl, Furnstahl, Gockeler, Griegel, Gross-Boelting, Henley, Ioffe, Ioffe, Itzykson, Jamin, Jido, Jido, Jin, Jin, Jin, Jin, Johnson, Koike, Kondo, Kondo, Krusche, Lee, Lee, Lee, Leinweber, Leinweber, Leinweber, Leupold, Leupold, Mallik, McGovern, Narison, Novikov, Oka, Plohl, Post, R. Thomas, Reinders, Rusnak, Sadovnikova, Sadovnikova, Serot, Shifman, Shifman, Stein, T. Hilger, Thomas, Thomas, Trnka, Yang, Zschocke   +71 more
core   +1 more source

Effects of chronic browsing on life‐history traits of an irruptive large herbivore population

Population Ecology, EarlyView.
This study aimed to determine the relationship between diet quality, body mass, and size (hind foot length), and female reproduction and sought to identify the mechanism by which high density under severe food limitations is maintained. Our results demonstrated that sika deer introduced to Nakanoshima Island have maintained high densities through high ...
Koichi Kaji, Kazutaka M. Takeshita, Hiroshi Takahashi, Hiromasa Igota, Mayumi Ueno, Yukiko Matsuura, Takashi Ikeda, Ryo Yoshizawa, Hino Takafumi, Tsuyoshi Yoshida   +9 more
wiley   +1 more source

Nonlinear dielectric response at the excess wing of glass-forming liquids

, 2013
We present nonlinear dielectric measurements of glass-forming glycerol and propylene carbonate applying electrical fields up to 671 kV/cm. The measurements extend to sufficiently high frequencies to allow for the investigation of the nonlinear behavior ...
A. Loidl, A. Piekara, P. Lunkenheimer, S. Kastner, Th. Bauer   +4 more
core   +1 more source

Combining transient dynamics and logistic‐asymptotic growth to study the recovery of two seabird populations after rat eradication

Population Ecology, EarlyView.
This study examines the demographic dynamics of two seabird populations on Tromelin Island, 15 years after the eradication of brown rats. The results indicate that these populations are in good health and are expected to continue growing until breeding sites are saturated in about a century.
Merlène Saunier, Christophe Barbraud, Maxime Amy, Sabine Orlowski, Jean Hivert, Gabrielle Dicque, Matthieu Le Corre   +6 more
wiley   +1 more source

Spectral measures of powers of random matrices

, 2013
This paper considers the empirical spectral measure of a power of a random matrix drawn uniformly from one of the compact classical matrix groups. We give sharp bounds on the $L_p$-Wasserstein distances between this empirical measure and the uniform ...
Meckes, Elizabeth, Meckes, Mark
core   +1 more source

The unpredictably eruptive dynamics of spruce budworm populations in eastern Canada

Population Ecology, EarlyView.
We examine historical population data for spruce budworm from several locations through the period 1930–1997, and use density‐dependent recruitment curves to test whether the pattern of population growth over time is more consistent with Royama's (1984; Ecological Monographs 54:429–462) linear R(t) model of harmonic oscillation at Green River New ...
Barry J. Cooke, Jacques Régnière
wiley   +1 more source

MENTAL SKILLS AND BEHAVIORAL COPING STRATEGIES INELITE FOOTBALL REFEREES

TRAKIA JOURNAL OF SCIENCES
The level of development of modern professional football imposes higher and higher demands on the mental health of football referees. A mentally well-prepared football referee would counter the means of influence more effectively, which is a basic prerequisite for making correct and timely decisions.
Iv. Ivanov, G. Ignatov
openaire   +2 more sources