Results 41 to 50 of about 488,094 (231)

Big Bird: A global dataset of birds in drone imagery annotated to species level

open access: yesRemote Sensing in Ecology and Conservation, EarlyView.
Drones are a valuable tool for surveying birds, but manually detecting and identifying birds in drone images is costly. We assembled a diverse dataset of 23 865 images of birds captured with 21 different drones across 11 countries. We labelled 4824 of these images, detailing the location, species, posture category, age category, and sex of 49 990 birds
Joshua P. Wilson   +19 more
wiley   +1 more source

Manifestaciones hidrológicas e hidroquímicas de flujos subterráneos procedentes de formaciones poco permeables del terciario en el Somontano de Huesca

open access: yesEstudios Geologicos, 1988
Se considera la presencia en el Somontano Oscense de flujos de agua subterránea procedentes de materiales detríticos terciarios de baja permeabilidad. Se da un modelo de flujo de las aguas subterráneas en estos materiales que permite explicar tanto su ...
J. A. Sánchez Navarro   +3 more
doaj   +1 more source

Middle Ordovician conodonts and graptolites at Los Cauquenes range, central Precordillera of San Juan, Argentina [PDF]

open access: yes, 2013
The Ordovician System is superbly represented in the Precordillera of western Argentina, at the Andean foothills. During the Middle Ordovician, an important paleogeographical rearrangement of depocenters and source areas took place associated with the ...
Albanesi, Guillermo Luis   +2 more
core  

Chloroquine plays a cell-dependent role in the response to treatment of pancreatic adenocarcinoma [PDF]

open access: yes, 2018
In this study, our aim is to assess the role played by autophagy and its inhibition in the different PDAC cellular compartments, and its involvement in chemo-resistance using primary human pancreatic cancer-derived cells (PCC) and Cancer Associated ...
Bintz, Jennifer   +6 more
core   +1 more source

Hospitaller Revenues, Bourbon Regalism: The Financial Administration of the Grand Priory of Castile and León under an American Parvenu

open access: yesHistory, EarlyView.
Abstract After the vicissitudes of the War of the Spanish Succession (1701–14), the consolidation of the Bourbon Monarchy in early eighteenth‐century Spain allowed Philip V's ministry to implement the so‐called Nueva Planta in his various kingdoms and lordships of the Crown of Aragon, but also in Castile.
Roberto Quirós Rosado
wiley   +1 more source

Análisis geológico multidisciplinar de la Unidad Arenas de Trigueros (Formación Arcillas de Gibraleón, S.O. de España)

open access: yesEstudios Geologicos, 2023
Este trabajo define las principales características sedimentológicas, paleontológicas y geoquímicas de la Unidad Arenas de Trigueros, depositada durante el Messiniense en un contexto global de bajada de nivel del mar. Esta unidad se diferencia del resto
Verónica Romero   +12 more
doaj   +1 more source

FEMINISTS VERSUS MONUMENTS? From Protests to Anti‐monuments in Mexico City

open access: yesInternational Journal of Urban and Regional Research, EarlyView.
Abstract This article examines the role of heritage spaces and monuments in the Historic Centre of Mexico City during ongoing feminist mobilizations. Feminists have claimed that the Mexican government is more concerned about protecting monuments and urban heritage than acting to prevent gender‐based violence and femicide.
Fernando Gutiérrez
wiley   +1 more source

Ostrácodos de la desembocadura del río Guadalquivir (SO de España)

open access: yesEstudios Geologicos
Este trabajo estudia las asociaciones de ostrácodos del río Guadalquivir desde su desembocadura hasta 35 km aguas arriba. Se describen cuatro zonas en función de las especies presentes, cuya distribución espacial está condicionada principalmente por la ...
María Luz González-Regalado   +11 more
doaj   +1 more source

Nidificación inusual del Loro Barranquero (Cyanoliseus patagonus) en cavidades naturales de árboles [PDF]

open access: yes, 2018
The Burrowing Parrot Cyanoliseus patagonus is known to breed in burrows mostly on cliffs and ravines in arid or semi‐arid regions of Argentina and Chile.
Berkunsky, Igor   +4 more
core  

Biostratigraphic reassignment of the neogene Caenolestines (Marsupialia) of the pampean region: the case of Pliolestes Tripotamicus Reig, 1955 [PDF]

open access: yes, 2017
La reinterpretación estratigráfica de un sitio paleontológico controvertido, como las barrancas del río Quequén Salado, permitió ajustar el biocrón del marsupial cenolestino Pliolestes tripotamicus Reig.
Beilinson, Elisa   +4 more
core   +4 more sources

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