Results 31 to 40 of about 344,749 (312)
Acta PalaeobotanicaSeveral samples of fossilized wood (charcoal) were collected in the Papayita archaeological site, in coastal Ecuador. This carbonized material was encountered inside a layer of volcanic ash that sealed the site. The ash-sized tephra was produced by a sub-
Grace Tatiana Páez-Barrera +5 more
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The Petroglyphs of Palpa: Rupestrian art from the Formative Period on the South Coast of Peru
Arqueología y Sociedad, 2023 This article presents the study of a group of petroglyphs from the Formative period of the Palpa valleys, linked to the Paracas period (800-200 BC) and with the period of transition from Paracas to Nasca, known as Proto Nasca (200-1 BC).
Johny Isla, Markus Reindel
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PLoS ONE, 2023 In this study, we examine the long-term trajectory of violence in societies that inhabited the coast of the Atacama Desert in northern Chile using three lines of evidence: bioarchaeology, geoarchaeology and socio-cultural contexts (rock art, weapons, and
Vivien G Standen +7 more
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Transverse Hypercrystals Formed by Periodically Modulated Phonon Polaritons
ACS Nano, 2023 Photonic crystals and metamaterials are two overarching paradigms for manipulating light. Combining the two approaches leads to hypercrystals: hyperbolic dispersion metamaterials that undergo periodic modulation and mix photonic-crystal-like aspects with hyperbolic dispersion physics.
Hanan Herzig Sheinfux +12 more
openaire +4 more sources
Assessment of young learners in the pre-literacy period in Serbia [PDF]
Zbornik Radova Filozofskog Fakulteta u Prištini, 2017 Given the fact that English is an obligatory subject in Serbian schools since the first grade, many parents opt for an early start and enroll their children in English classes while they are still in kindergarten, before they can actually read or write ...
Radić-Bojanić Biljana B. +1 more
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Frontiers in Earth Science, 2022 The analysis of archaeological ceramics has rapidly evolved over the last decades by the application of new analytical techniques. An emerging analytical proposal to fully characterise archaeological ceramics using automated SEM mineralogy is presented ...
Camila Riera-Soto +4 more
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Period Functions for Maass Wave Forms. I [PDF]
The Annals of Mathematics, 2001 Recall that a Maass wave form on the full modular group Gamma=PSL(2,Z) is a smooth gamma-invariant function u from the upper half-plane H = {x+iy | y>0} to C which is small as y \to \infty and satisfies Delta u = lambda u for some lambda \in C, where Delta = y^2(d^2/dx^2 + d^2/dy^2) is the hyperbolic Laplacian.
Lewis, J. +1 more
openaire +4 more sources
Sport stereotypes in the 21st century “brought to you by” Media Corporations
, 2008 Since its formative years sport has had a commercial component to its operation, however, in no previous time period have we seen the type of growth in the current commercialization of sport that we have seen in the last two decades.
Hawkins, Jeffrey M.
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Pediatric Blood &Cancer, EarlyView.ABSTRACT Background Pediatric patients with extracranial solid tumors (ST) receiving chemotherapy are at an increased risk for Pneumocystis jirovecii pneumonia (PJP). However, evidence guiding prophylaxis practices in this population is limited. A PJP‐related fatality at our institution highlighted inconsistent prescribing approaches and concerns about
Kriti Kumar +8 more
wiley +1 more source
A Portrait of Raymond Brutinel as a Young Man (Part I): The Future Machine Gun Commander in Edmonton, Alberta, 1905-1914 [PDF]
, 2016 Raymond Brutinel remains one of the Canadian Corps’ most intriguing and little understood senior officers. A fair amount has been written about his service with the Canadian Corps, which generally portrays him as a significant commander and military ...
Pulsifer, Cameron
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