Results 21 to 30 of about 20,531 (226)

Una extensión del algoritmo MIMIC mediante Cópulas

open access: yesNova Scientia, 2014
Una nueva manera de modelar dependencias probabilísticas en el algoritmo de Maximización de Información Mutua mediante Clústeres de Entrada (MIMIC) es presentada.
Rogelio Salinas Gutiérrez   +2 more
doaj   +1 more source

Relaciones de recurrencia e identidades entre (formula) y sus derivadas Relaciones de recurrencia e identidades entre (formula) y sus derivadas

open access: yesNexo, 2010
En este trabajo, se le da un sentido a la fórmula (formula)  donde (formula) .  Nuestra fórmula es una generalización de formulas que aparecen  en ([3]) y ([4]).
Manuel Aguirre
doaj   +1 more source

Precipitation shapes colour polymorphism in a widespread spider

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Colour polymorphism, the presence of multiple colour variants within a population, is a common example of intraspecific phenotypic variation and has served as a model for studying drivers of diversity.
Fabian C. Salgado‐Roa   +2 more
wiley   +1 more source

Percepción interna y externa de la distribución de las voces en un coro gospel

open access: yesEpistemus, 2013
Un debate activo en dirección coral es la posición idónea que deben adoptar las cuerdas del coro: soprano, alto, tenor y bajo (SATB). Grabamos un coro gospel con su director y sala de ensayo habituales, combinando 2 tipos de canto (vertical o ...
Alina Pelé, Blas Payri
doaj   +1 more source

From steps to home ranges: How habitat disturbance influences the movement drivers of an arboreal primate

open access: yesJournal of Animal Ecology, EarlyView.
Challenging the narrative about howler monkeys' high resilience to anthropogenic changes, our multiscale analysis reveals the costs of habitat disturbance to their movement ecology. We identify thermal limitations, reduced travel efficiency, and significant spatial saturation.
Anaid Cárdenas‐Navarrete   +4 more
wiley   +1 more source

A method to estimate actual infrastructure‐induced mortality by integrating hierarchical sources of imperfect detection

open access: yesMethods in Ecology and Evolution, EarlyView.
Abstract Human infrastructures are among the most impactful wildlife threats. Although estimates of animal mortality by these structures exist over a given period, they typically do not account for several levels of imperfect detection (i.e. difference between recorded and true mortality).
Guillermo Gomez‐Peña   +6 more
wiley   +1 more source

Propiedad de consistencia de las distribuciones elípticas [PDF]

open access: yes, 2020
RESUMEN: En este trabajo estudiamos una propiedad fundamental de las distribuciones elípticas, la propiedad de consistencia. En el primer capítulo, estudiamos resultados de álgebra lineal y probabilidad, fundamentales para la comprensión de las ...
López Jiménez, Ricardo
core  

Los determinantes socioeconómicos de la desigualdad económica. Datos de Portugal

open access: yesRevista Internacional de Sociología, 2010
Este artículo utiliza el Panel de Hogares de la Unión Europea (1994-2001) para investigar cuáles son los determinantes socioeconómicos de la desigualdad.
Santiago Budría
doaj   +1 more source

Taxonomic and functional diversity of urban bees of the world

open access: yesConservation Biology, EarlyView.
Abstract Bees play a pivotal role in terrestrial environments. Urbanization can affect these organisms and the ecosystem services they provide. However, knowledge of the global diversity of urban bees is limited. Thus, we summarized data on urban bee species identities and occurrences; compared distributions of all bees with those found in urban ...
João C. F. Cardoso   +10 more
wiley   +1 more source

Prevalence of traded bird species in key biodiversity areas

open access: yesConservation Biology, EarlyView.
Abstract The use and trade of biodiversity involve tens of thousands of species that are exploited at a range of scales, intensities, and degrees of sustainability. As a result, some are highly threatened. Key biodiversity areas (KBAs) are sites of significance for the persistence of biodiversity identified nationally based on standardized criteria ...
Oscar Morton   +4 more
wiley   +1 more source

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