Results 91 to 100 of about 92,505 (246)

The Quartzite and Quartz Reference Collection from the CENIEH (Spanish National Research Centre on Human Evolution), Spain: An Online Database for Characterising a Wide Diversity of Lithic Raw Materials

open access: yesJournal of Open Archaeology Data
The dataset presented here is the quartzite and quartz reference collection from the National Research Centre of Human Evolution of Spain (CENIEH), Burgos.
Alejandro Prieto   +3 more
doaj   +1 more source

RioM‐1: A New Calcite Reference Material for U‐Pb LA‐ICP‐MS Geochronology

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points RioM‐1 calcite was characterised for trace elements, U‐Pb geochronology, Sr and O isotopes using ID‐TIMS, LA‐ICP‐MS and SIMS. U‐Pb dates from ID‐TIMS and LA‐ICP‐MS across several independent laboratories returned identical results within uncertainty.
Marco Silva   +10 more
wiley   +1 more source

Fault activity studies in the Lower Tagus valley and Lisbon region using geophysical data [PDF]

open access: yes, 2018
he Metropolitan Area of Lisbon and the Lower Tagus Valley (LTV) region are located in central Portugal and inhabited by nearly 4 million people. The region has suffered throughout its history the effect of destructive earthquakes caused by hidden faults,
Alves, Daniela   +4 more
core  

Challenges in population monitoring: Bar‐tailed Godwits (Limosa lapponica) on the East Atlantic Flyway defy assumed population structure

open access: yesIbis, EarlyView.
Estimating and monitoring migratory bird populations involves significant challenges, even in the most well‐studied and easily‐counted species, and can be further complicated by long‐held but unverified assumptions and by shifting distributions in changing flyway conditions.
Jesse R. Conklin   +4 more
wiley   +1 more source

A propósito de las "Armas de la Antigua Iberia"

open access: yesGerión, 2013
El presente trabajo constituye un análisis crítico de la obra de F. Quesada Armas de la Antigua Iberia. De Tartesos a Numancia, publicada recientemente.
Ana de Francisco Heredero
doaj   +1 more source

Gades and the Mediterranean: a Process of Integration [PDF]

open access: yes, 2019
The impetus for this paper is to present possible contributions of the Network Theory approach to the analysis of the Roman presence in Turdetania by the end of the 1st millennium BC.
dos Santos Silva, Bruno
core   +1 more source

Free‐living Black‐tailed Godwits maintain constant intake rates across varying grassland habitat conditions by adjusting their foraging behaviour

open access: yesIbis, EarlyView.
Free‐living birds need to acquire enough food to fulfil their energetic needs, which may require more effort in habitats with less favourable conditions. Therefore, to maintain their necessary energy intake, birds need to adjust their foraging behaviour in response to varying habitat conditions.
Renée Veenstra   +5 more
wiley   +1 more source

Nuevas evidencias sobre la organización espacial del asentamiento de la Edad del Cobre de Valencina de la Concepción: prospección geofísica entre La Pastora y Montelirio

open access: yesTrabajos de Prehistoria, 2012
El gran asentamiento de la Edad del Cobre de Valencina de la Concepción ha sido objeto de numerosas investigaciones a lo largo de más de un siglo. Estas investigaciones han dado lugar a un registro arqueológico heterogéneo particularmente difícil de ...
David Wheatley   +4 more
doaj   +1 more source

Boston University Symphony Orchestra, October 28, 2014 [PDF]

open access: yes, 2014
This is the concert program of the Boston University Symphony Orchestra performance on Tuesday, October 28, 2014 at 8:00 p.m., at the Tsai Performance Center, 685 Commonwealth Avenue, Boston, Massachusetts.
School of Music, Boston University
core  

Morphological response of the saltmarsh habitats of the Guadiana estuary due to flow regulation and sea-level rise [PDF]

open access: yes, 2016
In the context of rapid sea-level rise in the 21st century, the reduction of fluvial sediment supply due to the regulation of river discharge represents a major challenge for the management of estuarine ecosystems.
Boski, T., Sampath, DMR
core   +1 more source

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