Results 71 to 80 of about 37,890 (228)

Weighted Nash Inequalities [PDF]

open access: yes, 2010
Nash or Sobolev inequalities are known to be equivalent to ultracontractive properties of Markov semigroups, hence to uniform bounds on their kernel densities.
Bakry, Dominique   +3 more
core   +6 more sources

Experimental Disentangling of the Effects of Initial Population Size and Resource Availability on Weevil Population Dynamics

open access: yesEntomologia Experimentalis et Applicata, Volume 173, Issue 12, Page 1278-1284, December 2025.
Initial population size and resource availability are key factors regulating population dynamics, with growth rates typically declining as populations increase but rising with greater resources. In maize weevils, however, we found an unexpected negative effect of resource availability on intrinsic growth rates, contrary to conventional expectations. We
Gessica Miranda Barros   +24 more
wiley   +1 more source

The Logarithmic Sobolev Constant of The Lamplighter

open access: yes, 2010
We give estimates on the logarithmic Sobolev constant of some finite lamplighter graphs in terms of the spectral gap of the underlying base.
Abdellah Youssfi   +46 more
core   +3 more sources

Decoupling Interday and Intraday Volatility Dynamics With Price Durations

open access: yesJournal of Time Series Analysis, Volume 46, Issue 6, Page 1224-1250, November 2025.
ABSTRACT This article introduces a novel framework for volatility estimation based on price durations with an adaptive price change threshold. This innovation allows us to disentangle daily and intraday volatility dynamics from price durations, which greatly simplifies the parametric modelling of price durations and hence leads to more accurate ...
Yifan Li   +3 more
wiley   +1 more source

Um crítico no redemoinho A critic in the whirlpool

open access: yesTempo Social, 2011
Este artigo acompanha a recepção dos trabalhos de Roberto Schwarz sobre a obra de Machado de Assis. A partir das tomadas de posição de um conjunto de autores sobre esses textos, procura traçar um panorama dos jogos de força em atuação no campo da crítica
Flávio Rosa de Moura
doaj   +1 more source

Entrevista com Roberto Schwarz

open access: yesEm Tese, 2015
Em Entrevistas temos sete repostas de Roberto Schwarz sobre sua formação, literatura, política, estética, entre outras ...
openaire   +2 more sources

Las ciudades fuera de lugar: la Lima de Sebastián Salazar Bondy y Mario Vargas Llosa [PDF]

open access: yes, 2015
En el presente trabajo nos centraremos en el análisis de dos textos latinoamericanos producidos por autores peruanos en la década de 1960: Lima la horrible, ensayo de Sebastián Salazar Bondy y Conversación en La Catedral, novela de Mario Vargas Llosa. El
Jersonsky, Eva
core  

Shallow Nitrogen Vacancy Color Centers in Diamond by Ion Implantation

open access: yesAdvanced Quantum Technologies, Volume 8, Issue 10, October 2025.
This study investigates the formation of shallow nitrogen‐vacancy (NV) centers in CVD diamond through broad‐beam ion implantation across a SiO₂ layer. By adjusting the ion incidence angle, the distribution of NV centers is controlled, as predicted by sytopping and range of ions in matter (SRIM) simulations and confirmed by angle‐resolved X‐ray ...
Giorgio Speranza   +14 more
wiley   +1 more source

Marcas da ordem patriarcal em São Bernardo: o dilema do favor

open access: yesRevista Investigações, 2009
Este artigo vale-se da lógica do favor de Roberto Schwarz, dos conceitos núcleo/ nebulosa de Roberto Reis e do binômio ordem/desordem de Antonio Candido, para discutir a permanência de alguns valores patriarcais no romance S. Bernardo (1934), escrito por
Marcos Hidemi de Lima
doaj  

Minimum length effects in black hole physics

open access: yes, 2014
We review the main consequences of the possible existence of a minimum measurable length, of the order of the Planck scale, on quantum effects occurring in black hole physics.
A Aurilia   +132 more
core   +1 more source

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