Results 21 to 30 of about 78,978 (177)

REVISIÓN DE LOS BIOCOREMAS MARINOS GLOBALES DEL JURÁSICO SEGÚN LA DISTRIBUCIÓN DE LOS MOLUSCOS BIVALVOS

open access: yesPublicación Electrónica de la Asociación Paleontológica Argentina, 2017
Numerosos trabajos regionales o locales han propuesto el reconocimiento de unidades biogeográficas de distintos rangos (biocoremas) basadas sobre la distribución de los moluscos bivalvos para el Jurásico, pero no existía una síntesis a nivel mundial ...
Damborenea, Susana E.
doaj   +3 more sources

El Manifiesto comunista en Chile: circulación y edición

open access: yesAnuario Colombiano de Historia Social y de la Cultura, 2021
Objetivo: del amplio universo de la literatura socialista, el Manifiesto comunista de Marx y Engels ha sido por lejos el folleto más afortunado. Publicado por primera vez en 1848, a fines del siglo XIX se había convertido en el texto liminar del ...
Horacio Tarcus
doaj  

Colombia y la tectónica de placas

open access: yesCuadernos de Geografía: Revista Colombiana de Geografía, 1982
De acuerdo con muchos científicos actuales, especialmente con el americano John Tuzo Wilson, la Geología está pasando en estos momentos por una revolución científica equivalente a la que tuvo lugar en Astronomía en tiempo de Copérnico, en Biología con el
Carlos Eduardo Acosta A.
doaj   +2 more sources

Sedimentation processes and beach morphodynamics active at the Doce River mouth, Espírito Santo State, Brazil

open access: yesAnais da Academia Brasileira de Ciências, 2010
The coastal sedimentation model in the Doce River mouth and surroundings extends beyond the hydraulic jetty effect created by its stream-flow. During flooding, marine sediments transported by longshore currents are retained on the updrift side, causing ...
Jacqueline Albino, Kenitiro Suguio
doaj   +1 more source

LAS HISTORIAS DE LA LITERATURA REGIONALES COMO NUEVO PARADIGMA IDENTITARIO

open access: yesHallazgos, 2015
El siguiente artículo se deriva de un proceso de investigación doctoral en torno a la problemática de la periodización de la literatura colombiana.
Diana Paola Guzmán Méndez
doaj   +1 more source

Insider Trading: The Issuer’s Disposition of an Alleged 16 (b) Violation [PDF]

open access: yes, 1968
When corporate officers are apprised of possible 16(b) liability on the part of a fellow insider, an appropriate reaction by them encompasses both practical and legal considerations.

core   +2 more sources

Anisotropic Radial Basis Function Methods for Continental Size Ice Sheet Simulations

open access: yes, 2017
In this paper we develop and implement anisotropic radial basis function methods for simulating the dynamics of ice sheets and glaciers. We test the methods on two problems: the well-known benchmark ISMIP-HOM B that corresponds to a glacier size ice and ...
Cheng, Gong, Shcherbakov, Victor
core   +1 more source

Solos do passado: origem e identificação

open access: yesRevista Brasileira de Ciência do Solo, 2010
Solos resultam da interação de fatores e processos operantes nas diferentes paisagens da superfície terrestre. Ao longo do tempo geológico, essas paisagens se modificam, bem como os perfis de solo a elas associados.
Francisco Sergio Bernardes Ladeira
doaj   +1 more source

Vulnerability of marine megafauna to global at‐sea anthropogenic threats

open access: yesConservation Biology, Volume 40, Issue 1, February 2026.
Abstract Marine megafauna species are affected by a wide range of anthropogenic threats. To evaluate the risk of such threats, species’ vulnerability to each threat must first be determined. We build on the existing threats classification scheme and ranking system of the International Union for Conservation of Nature (IUCN) Red List of Threatened ...
Michelle VanCompernolle   +309 more
wiley   +1 more source

Pondering the non‐return of ageing migrants in the Finnish–Russian everyday transnational context

open access: yesInternational Migration, Volume 63, Issue 2, April 2025.
Abstract In the Finnish–Russian migratory context, return migration does not exist as such. In this article, we examine the non‐return migration of Russian‐speaking elderly migrants through the lens of the transnational everyday. The transnational everyday of Russians in Finland has, until recently, enabled their back‐and‐forth trips from Finland to ...
Olga Davydova‐Minguet   +1 more
wiley   +1 more source

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