Results 61 to 70 of about 127,697 (199)

Dramatic effective mass reduction driven by strong electronic correlations [PDF]

open access: yesarXiv, 2009
We present angle-resolved photoemission experiments on 1T-TiSe2 at temperatures ranging from 13K to 288K. The data evidence a dramatic renormalization of the conduction band below 100K, whose origin can be explained with the exciton condensate phase model.
arxiv  

Laplacian Fractal Growth in Media with Quenched Disorder [PDF]

open access: yes, 1997
We analyze the combined effect of a Laplacian field and quenched disorder for the generation of fractal structures with a study, both numerical and theoretical, of the quenched dielectric breakdown model (QDBM). The growth dynamics is shown to evolve from the avalanches of invasion percolation (IP) to the smooth growth of Laplacian fractals, i.
arxiv   +1 more source

Étude de performance des systèmes de découverte de ressources [PDF]

open access: yesDans Actes de Fribourg'2008 : Renpar'18 / SympA'2008 / CFSE'6 - Renpar'18, Fribourg : Suisse (2008), 2008
The Desktop Grid offers solutions to overcome several challenges and to answer increasingly needs of scientific computing. This technology consists mainly in exploiting PC resources, geographically dispersed, to treat time consuming applications and/or important storage capacity requiring applications.
arxiv  

Theory of Self-organized Criticality for Problems with Extremal Dynamics [PDF]

open access: yes, 1997
We introduce a general theoretical scheme for a class of phenomena characterized by an extremal dynamics and quenched disorder. The approach is based on a transformation of the quenched dynamics into a stochastic one with cognitive memory and on other concepts which permit a mathematical characterization of the self-organized nature of the avalanche ...
arxiv   +1 more source

Barn owl site occupancy and breeding success in relation to land use and nest box characteristics

open access: yesThe Journal of Wildlife Management, Volume 89, Issue 1, January 2025.
This study investigates the relationship between biodiversity promotion areas, urbanization, and nest box characteristics on barn owl (Tyto alba) occupancy and breeding success. Our findings highlight the nuanced effects of environmental factors on barn owl reproductive outcomes, with implications for conservation strategies in agricultural landscapes.
Estelle Milliet   +5 more
wiley   +1 more source

Friedel Oscillations in the Open Hubbard Chain [PDF]

open access: yes, 1998
Using the Density Matrix Renormalization Group (DMRG), we calculate critical exponents for the one-dimensional Hubbard model with open boundary conditions with and without additional boundary potentials at both ends. A direct comparison with open boundary condition Bethe Ansatz calculations provides a good check for the DMRG calculations on large ...
arxiv   +1 more source

How signature strengths develop positive interdependence and empowerment in an inclusive education context

open access: yesJournal of Research in Special Educational Needs, Volume 25, Issue 1, Page 82-93, January 2025.
Abstract This study evaluates the Individual Strengths, Collective Power! program in fostering students' use of strengths vocabulary and improving classroom relationships in an inclusive education setting in Switzerland, where students with and without special educational needs and disabilities (SEND) attend school together.
Nicolas Bressoud   +6 more
wiley   +1 more source

Paysage cadastral et paysage vécu : réflexions sur les espaces construits [PDF]

open access: yesGeographica Helvetica
Die Zunahme der Urbanisierung im allgemeinen, die unmerkliche Ausdehnung der Urbanisierung in den ländlichen Gebieten im besonderen ist allen bekannt. Das Ausmaß dieses Prozesses ist jedoch schwierig einzuschätzen.
J.-L. Piveteau
doaj   +1 more source

Home - About - Disclaimer - Privacy