Results 31 to 40 of about 14,188 (174)

Ecología urbana

open access: yesLetras Verdes: Revista Latinoamericana de Estudios Socioambientales, 2013
Una particularidad de la producción de conocimiento en el siglo XXI es la emergencia de campos e investigaciones que integran disciplinas para el estudio de problemas o temas específicos.
Nicolás Cuvi
doaj   +1 more source

Unravelling Evolutionary Dynamics of Female Sexual Cannibalism and Male Reproductive Strategies in Spiders

open access: yesIntegrative Zoology, EarlyView.
Sexual cannibalism (SC), where one mating partner consumes the other in the context of mating, is especially prevalent among spiders. However, the evolution of SC in spiders is still not fully understood. We review key hypotheses for SC and explore how female‐initiated SC has driven the evolution of various male counter‐adaptations to mitigate its ...
Simona Kralj‐Fišer   +3 more
wiley   +1 more source

Revisión de las ?Hydrocotyle? argentinas

open access: yesLilloa, 1938
Revisión de las Hydrocotyle (Apiales) argentinas. * Presentado a la Facultad de Ciencias Exactas, Físicas y Naturales de la Universidad de Buenos Aires, para optar al grado de Doctor en Ciencias Naturales.
Román A. Pérez-Moreau
doaj  

Sensory Biology of the Franciscana (Pontoporia blainvillei, Pontoporiidae, Cetartiodactyla): Ontogenetic Modifications of Vibrissae and Vibrissal Crypts

open access: yesIntegrative Zoology, EarlyView.
The transition of cetaceans from a terrestrial to an aquatic environment involved a crucial sensory adaptation to environments with limited visibility. Vibrissae, important mechanoreceptors, undergo an ontogenetic transformation in odontocetes. This research describes the histomorphology of vibrissae and crypts at different developmental stages ...
Cecilia Mariana Krmpotic   +10 more
wiley   +1 more source

Estado Vital de la Materia. Su origen, su evolución y su futuro.

open access: yesMedicina, 2001
<p>En este artlculo se hacen algunas observaciones sobre un estado de la materia (estado vital), propuesto para reemplazar el de materia viva, que se usa habitualmente.</p><p>La materia en estado vital se organiza por una fuerza interna,
J. Hernando Ordoñez
doaj  

Filter feeders living on suspension feeders: New insights into the lifestyle and distribution of Arcturidae Dana, 1849 (Crustacea: Isopoda) around Iceland

open access: yesMarine Ecology, EarlyView.
Abstract The focus of the present study was on arcturid isopods occurring in the subarctic region around Iceland. Data from two decades of sampling with an epibenthic sledge (EBS) during numerous expeditions of the BIOICE (Benthic Invertebrates of Icelandic Waters; 1992–2004) and IceAGE (Icelandic marine Animals: Genetics and Ecology; 2011—ongoing ...
Vivien Lukas Hartmann   +5 more
wiley   +1 more source

Diel and Artificial Light Effects on Nearshore Communities Revealed by eDNA Metabarcoding

open access: yesEnvironmental DNA, Volume 8, Issue 4, July‐August 2026.
Environmental DNA revealed rapid, taxon‐specific community reorganization across diel and artificial light conditions in a nearshore marine ecosystem. Distinct responses among trophic groups indicate that artificial light at night reshapes predator–prey interactions and community structure within 30 min of exposure.
Kingsly Chuo Beng   +18 more
wiley   +1 more source

La guerra entre ciencias exactas y humanidades en el fin de siglo: el esc ndalo Sokal y una propuesta pacificadora

open access: yesCiencia Ergo Sum, 2000
Se aborda la discusión que se ha dado entre las ciencias exactas y humanas, a partir del escándalo provocado por el físico Alan Sokal, y se destaca la necesidad de desarrollar un proyecto científico técnico que unifique ciencias y humanidades.
Antonio Arellano Hernández
doaj  

Ground‐ and Excited‐State Mixed Valency in a 4,4′‐Bipyridine‐Bridged Bimetallic Di‐Ruthenium Complex

open access: yesEuropean Journal of Inorganic Chemistry, Volume 29, Issue 16, 4 June 2026.
Photoinduced mixed‐valence interactions across a 4,4′‐bpy bridge were studied. MLCT excited states in the bimetallic complex are longer‐lived than in the monometallic reference, thanks to metal–metal electronic coupling and hole delocalization, but are still shorter than the nanosecond timescale relevant for diffusional reactivity.
Ivana Ramírez‐Wierzbicki   +3 more
wiley   +1 more source

Redes sociales como facilitadoras del aprendizaje de ciencias exactas en la educación superior

open access: yesApertura, 2015
El uso de las redes sociales se ha generalizado en todos los ámbitos, y el sector educativo no es la excepción. El objetivo del trabajo que aquí presentamos es relacionar el uso de las redes sociales con el aprendizaje de las ciencias exactas en una ...
Irma Leticia Chávez Márquez   +1 more
doaj  

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