Results 31 to 40 of about 4,819 (169)

Multi‐Method Geophysical Surveys Between and Around the Kerlescan and the Manio Megalithic Alignments in Carnac (Morbihan, France)

open access: yesArchaeological Prospection, Volume 33, Issue 2, Page 499-517, April/June 2026.
ABSTRACT The Carnac alignments in Morbihan (France) are among the most famous Neolithic sites of the world. Paradoxically, they have benefited little from a thorough renewal of archaeological data over the past century. There are many reasons for this, but it is mainly because the site has been regarded more as a monument to visit and protect than as ...
Guillaume Bruniaux   +6 more
wiley   +1 more source

Leveraging Plasmonic Nanocavity Arrays Forming Metasurfaces to Boost Second Harmonic Generation Due to Surface Effects

open access: yesAdvanced Optical Materials, Volume 14, Issue 9, 6 March 2026.
Second harmonic generation (SHG) typically requires non‐centrosymmetric crystals to be realized. Here, we experimentally demonstrate a 105‐fold boost in the SHG response from centrosymmetric materials by realizing gold nanocavity arrays forming plasmonic metasurfaces.
Sky Semone   +3 more
wiley   +1 more source

Nueva serie de dataciones radiocarbónicas sobre hueso humano para el dolmen de Los Zumacales (Simancas, Valladolid). Reflexiones sobre la temporalidad del fenómeno megalítico en la Meseta Norte

open access: yesTrabajos de Prehistoria, 2020
Se analiza la secuencia temporal funeraria de un monu­mento megalítico de la Meseta Norte, el dolmen de Los Zu­macales (Simancas, Valladolid), fechado anteriormente en torno a la primera mitad del IV milenio cal AC.
Angélica Santa Cruz del Barrio   +2 more
doaj   +1 more source

Emergent heritage: the digital conservation of archaeological sites in reservoirs and the case of the Dolmen de Guadalperal (Spain)

open access: yesHeritage Science, 2021
The dolmen of Guadalperal (Spain) became well known in 2019 when the waters of the reservoir in which it had long been submerged became so depleted as to leave it above water and highly visible. This gave rise to great media and social polemic.
Enrique Cerrillo-Cuenca   +5 more
doaj   +1 more source

Boosting the Magnetic Response of a Composite Nanostructure in the Near‐Visible Region with a Fano Resonance

open access: yesAdvanced Photonics Research, Volume 7, Issue 1, January 2026.
Optical simulations of composite plasmonic split‐ring resonators show that a magnetic response can be obtained at wavelengths near the visible regime. The response is further increased by extending the geometry and enabling a Fano resonance through the coupling of magnetic dipoles.
Maximilian Grimmer, Monika Fleischer
wiley   +1 more source

Device from New Dolmen ChapbooksNew Dolmen Chapbooks

open access: yes, 2005
Image issued as illustration for The Dolmen Press, Dublin, Ireland.Print date unknown.Image depicts man with folded arms.Zinc ...
Adams, Tate, 1922-
core   +1 more source

How fast do amphibians disperse? Introductions, distribution and dispersal of the common frog Rana temporaria and the common toad Bufo bufo on a coastal island in Central Norway

open access: yesFauna Norvegica, 2016
The common frog (Rana temporaria) and the common toad (Bufo bufo) were introduced successfully to the coastal island of Frøya in Central Norway several times during 1960–2012.
Dag Dolmen, Jan Seland
doaj   +1 more source

Digital Spatial Technologies to Compose the Map of the Southeast Iberia Megalithic Phenomenon. The Case Study of Fonelas (Granada, Spain)

open access: yesArchaeological Prospection, Volume 33, Issue 1, Page 257-273, January/March 2026.
ABSTRACT Megalithic landscapes in Southeast Iberia remain unevenly and insufficiently documented, particularly in rugged areas where traditional survey methods are limited. This paper addresses this gap by applying a multiscalar approach to the megalithic necropolises of the Fardes River (Granada, Spain), with the objective of detecting, documenting ...
Carolina Cabrero González   +3 more
wiley   +1 more source

Zoogeography of Triturus vulgaris (L.) and T. cristatus (Laurenti) (Amphibia) in Norway, with notes on their vulnerability

open access: yesFauna Norvegica, 1982
The distribution of Triturus vulgaris (L.) in Norway is separated into a southeastern distribution area, extending westwards along the coast, and a central Norwegian area in the Trøndelag region. T.
Dag Dolmen
doaj  

Megalithic structures and dolmen orientation in Bulgaria [PDF]

open access: yesArchaeoastronomy and Ancient Technologies, 2013
A review of the main types of megalithic and quasi-megalithic monuments in Bulgaria is presented together with maps of their localization. A large and modern data base about the orientation of 110 Thracian dolmens (XII-VII c. BC) is interpreted in detail.
Tsonev, L.V., Kolev, D.Z.
doaj   +1 more source

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