Results 111 to 120 of about 309,413 (302)

Overcoming Polyatomic Interferences in Sulfur Isotope Measurement Using MC‐ICP‐MS

open access: yesGeostandards and Geoanalytical Research, EarlyView.
Key Points Optimising plasma conditions via the normalised argon index (NAI) reduces polyatomic interferences, allowing accurate sulfur isotope measurement in low‐resolution mode on MC‐ICP‐MS. Low‐resolution mode enhances sensitivity by approximately threefold compared with conventional high‐resolution analysis.
Yang Yu   +4 more
wiley   +1 more source

Recent eruption history inferred from eruption ages of the two latest lava flows using multi-dating at Yokodake Volcano, Japan

open access: yesEarth, Planets and Space, 2020
Reconstruction of the eruption history of an active volcano is necessary to elucidate its volcanic activity and to assess the probability of its volcanic eruption. Yokodake volcano in central Japan is the only active volcano among the Yatsugatake volcano
Hiroya Nitta   +2 more
doaj   +1 more source

Volatile Transport by Volcanic Plumes on Earth, Venus and Mars [PDF]

open access: yes, 2012
Explosive volcanic eruptions can produce sustained, buoyant columns of ash and gas in the atmosphere (Fig. 1). Large flood basalt eruptions may also include significant explosive phases that generate eruption columns.
Baloga, Steve   +3 more
core   +1 more source

Ash plume properties retrieved from infrared images: a forward and inverse modeling approach

open access: yes, 2014
We present a coupled fluid-dynamic and electromagnetic model for volcanic ash plumes. In a forward approach, the model is able to simulate the plume dynamics from prescribed input flow conditions and generate the corresponding synthetic thermal infrared (
Cerminara, Matteo   +3 more
core   +3 more sources

A 100-year record of North Pacific volcanism in an ice core from Eclipse icefield, Yukon Territory, Canada [PDF]

open access: yes, 2003
A record of regionally significant volcanic eruptions in the North Pacific over the last century has been developed using a glaciochemical record from Eclipse Icefield, Yukon Territory, Canada.
Germani, Mark S   +2 more
core   +3 more sources

Wrestling Voices: Amplifying Patriotism and Ethnic Stereotypes in 1980s American Professional Wrestling

open access: yesThe Journal of American Culture, EarlyView.
ABSTRACT This article examines the use of promotional interviews (“promos”) in American professional wrestling of the 1980s. I argue that promos introduced a vocal modality into a form of sports entertainment that, as Roland Barthes ([1957] 1972) showed in Mythologies, had always been dominated by visual spectacle. I then undertake a focused linguistic
Jens Kjeldgaard‐Christiansen
wiley   +1 more source

Magmatic volatiles in explosive rhyolitic eruptions

open access: yesGeophysical Research Letters, 1981
Obsidian clasts in rhyolitic tephra deposits preserve preemption magmatic volatile contents, providing a direct means for determining the volatile content of explosively erupted magmas. Small to moderate volume Plinian eruptions (10−3 to 10−1 km³) appear to be driven by 0.5‐1.0 wt.% volatiles, consisting dominantly of H2O with minor CO2.
J. C. Eichelberger, H. R. Westrich
openaire   +1 more source

European Green Deal and Geopoliticisation of Trade: A Poststructuralist Discourse Analysis of EU Agricultural Trade Policy

open access: yesJCMS: Journal of Common Market Studies, EarlyView.
Abstract Drawing on Laclau and Mouffe's poststructuralist discourse theory, this article critically examines the von der Leyen Commission's agricultural trade policy under the European Green Deal. It elucidates the shift from a dominant neoliberal trade logic to open strategic autonomy, positioning agricultural trade as a foreign policy instrument. The
Mari Carlson
wiley   +1 more source

The Spectral Temperature of Optically Thick Outflows with Application to Light Echo Spectra from $\eta$~Carinae's Giant Eruption

open access: yes, 2016
The detection by Rest et al. (2012) of light echoes from $\eta$ Carinae has provided important new observational constraints on the nature of its 1840's era giant eruption.
Owocki, Stanley P., Shaviv, Nir J.
core   +1 more source

Periodontitis and Periodontal Conditions in Systemically Healthy Children and Adolescents

open access: yesJournal of Clinical Periodontology, EarlyView.
ABSTRACT Objective To answer the PICoS question ‘in systemically healthy children and adolescents (Population), what are the main features of periodontitis, necrotising periodontal diseases (NPD) and other periodontal conditions (periodontal abscesses, endo‐periodontal lesions, traumatic occlusal forces, prosthesis‐ and tooth‐related factors ...
Inbar Eshkol‐Yogev   +5 more
wiley   +1 more source

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