Results 71 to 80 of about 1,062,037 (236)

Radiative Transfer Limits of Two-Frequency Wigner Distribution for Random Parabolic Waves [PDF]

, 2006
The present note establishes the self-averaging, radiative transfer limit for the two-frequency Wigner distribution for classical waves in random media. Depending on the ratio of the wavelength to the correlation length the limiting equation is either a ...
Albert C. Fannjiang, Blomgren, Derode, Derode, Fannjiang, Fannjiang, Fannjiang, Fannjiang, Fannjiang, Ishimaru, Mishchenko, Ryzhik   +11 more
core   +8 more sources

Economic activity during extreme events

Canadian Journal of Economics/Revue canadienne d'économique, EarlyView.
Abstract Although extreme weather events, natural disasters or infrastructure failures potentially have important economic effects, quantifying these effects over small areas and fine time intervals has been difficult because of the fairly coarse scales available in most data sources. This paper surveys the use of relatively new and finely grained data
John W. Galbraith
wiley   +1 more source

Assessing the integration of social marketing principles in ivory demand management interventions in China and Southeast Asia

Conservation Biology, EarlyView.
Abstract Consumer demand for ivory perpetuates the unsustainable and illegal killing of African elephants and other wildlife species. Interventions that aim to change consumer behavior are increasingly recognized as a crucial element of demand management. However, poor design and implementation have limited their effectiveness.
Molly R. C. Brown, Victoria K. Wells, Colin M. Beale   +2 more
wiley   +1 more source

Passando do limite no ambiente de trabalho [PDF]

, 2011
Fernanda é servidora pública. Após ter feito doutorado no exterior, retornou ao Brasil ávida por aplicar seus novos conhecimentos em ações desenvolvidas pelo ministério de origem.
Busch, Amarílis, Fontenele, Tânia, Rodrigues, Lilian, Tessari, Gustavo   +3 more
core   +1 more source

Comprehensive framework for assessing and optimizing existing research networks

Conservation Biology, EarlyView.
Abstract Conservation, monitoring, and research networks, or collections of ecological research sites unified under a common mission of data collection or a research mission, are essential infrastructure for understanding large landscapes. However, most networks developed opportunistically over decades rather than through systematic design, creating ...
Alyson East, Jitendra Kumar, William Hargrove   +2 more
wiley   +1 more source

Representation of obligate groundwater‐dwelling copepod diversity in European protected areas

Conservation Biology, EarlyView.
Abstract Groundwaters sustain diverse surface ecosystems and are populated by metazoan species, mostly invertebrates, that provide fundamental ecological functions and are often of prominent conservation value due to narrow endemism and high phylogenetic rarity.
Francesco Cerasoli, Lorenzo Ricci, Mattia Di Cicco, Tiziana Di Lorenzo, Michele Di Musciano, Stefano Mammola, Emma Galmarini, Diana Maria Paola Galassi   +7 more
wiley   +1 more source

An integrated approach to balance freshwater connectivity restoration and invasion risk

Conservation Biology, EarlyView.
Abstract Habitat fragmentation negatively affects many native migratory fish populations. However, this fragmentation can also prevent the spread and establishment of invasive species. We modified the dendritic connectivity index (DCI), a commonly used freshwater connectivity metric, to account for multiple invasive dispersal pathways in estimates of ...
Alex Arkilanian, David Coté, Yolanda F. Wiersma, Richard Pither   +3 more
wiley   +1 more source

Le tourisme dans l’espace caribéen

Téoros, 2007
Les îles et les rivages de la Caraïbe, destinations exotiques longtemps réservées à quelques élites, s’ouvrent largement au tourisme de masse. La quantification des flux touristiques reste délicate dans l’espace caribéen qui s’est construit à travers des
Olivier DEHOORNE
doaj  

ANÁLISE SOBRE AS DEFINIÇÕES TERRITORIAIS DE CIDADE, MUNICÍPIO E METRÓPOLE NA DIVERSIDADE DO TERRITÓRIO BRASILEIRO

Geopauta, 2017
Este artigo objetiva uma discussão sobre os critérios para definição de cidades, meio urbano e suas delimitações no território. Critérios para elucidar discussões político-administrativas e geográficas baseado na conceituação fornecida pelo IBGE ...
Daniela Andrade Monteiro Veiga, Jana Maruska Buuda da Matta, Artur José Pires Veiga   +2 more
doaj   +1 more source

Effet d’un vortex sur le décollement d’une couche limite turbulente sur profil NACA0015 2D [PDF]

, 2010
L’objectif de cette étude est d’analyser expérimentalement l’interaction entre un tourbillon longitudinal isolé et une couche limite se développant sur un profil portant bi-dimensionnel de type NACA0015 pour des incidences faibles et autour du décrochage
Billard, Jean-Yves, Djeridi, Henda, Prothin, Sebastien   +2 more
core