Results 11 to 20 of about 555,071 (331)

Acknowledgment to Reviewers of Quaternary in 2020

open access: yesQuaternary, 2021
Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that Quaternary maintains its standards for the high quality of its published papers [...]
Quaternary Editorial Office
doaj   +1 more source

Quaternary Ammonium Compounds (QACs) and Ionic Liquids (ILs) as Biocides: From Simple Antiseptics to Tunable Antimicrobials

open access: yesInternational Journal of Molecular Sciences, 2021
Quaternary ammonium compounds (QACs) belong to a well-known class of cationic biocides with a broad spectrum of antimicrobial activity. They are used as essential components in surfactants, personal hygiene products, cosmetics, softeners, dyes ...
A. Vereshchagin   +4 more
semanticscholar   +1 more source

Enantioselective Formation of Quaternary Centers by Allylic Alkylation with First-Row Transition-Metal Catalysts.

open access: yesChemical Reviews, 2021
Asymmetric allylic alkylation mediated by transition metals provides an efficient strategy to form quaternary stereogenic centers. While this transformation is dominated by the use of second- and third-row transition metals (e.g., Pd, Rh, and Ir), recent
Lars Süsse, B. Stoltz
semanticscholar   +1 more source

A Continuous Seismostratigraphic Framework for the Western Svalbard-Barents Sea Margin Over the Last 2.7 Ma: Implications for the Late Cenozoic Glacial History of the Svalbard-Barents Sea Ice Sheet

open access: yesFrontiers in Earth Science, 2021
Here we present a high-resolution, continuous seismostratigraphic framework that for the first time, connects the over 1,000 km long western Svalbard-Barents Sea margin and covers the last ∼2.7 million years (Ma).
Nikolitsa Alexandropoulou   +9 more
doaj   +1 more source

Revision of the fossil land tortoises (Testudines: Testudinidae) from Hispaniola with the description of a new species

open access: yesNovitates Caribaea, 2022
The genus of land tortoises Chelonoidis had a wide distribution across the Caribbean and Bahamian Archipelago during the Late Pleistocene and Holocene. Two extinct species of this genus, C. marcanoi Turvey et al., 2017 and C.
Lázaro W Viñola-López, Juan N Almonte
doaj   +1 more source

Green Concrete Based on Quaternary Binders with Significant Reduced of CO2 Emissions

open access: yesEnergies, 2021
The article presents studies of plain concretes prepared based on a quaternary binder containing various percentages of selected supplementary cementitious materials (SCMs). The possibilities of nanotechnology in concrete technology were also used.
G. Golewski
semanticscholar   +1 more source

Acknowledgement to Reviewers of Quatenrary in 2019

open access: yesQuaternary, 2020
The editorial team greatly appreciates the reviewers who have dedicated their considerable time and expertise to the journal’s rigorous editorial process over the past 12 months, regardless of whether the papers are finally published or not [...]
Quaternary Editorial Office
doaj   +1 more source

The Sound of ”Quaternary” [PDF]

open access: yesQuaternary, 2020
It is useful to re-consider at specific times the strategy of a journal. Some thoughts are expressed here at the occasion of the renewal of the editorship of ”Quaternary”. No changes are envisaged in the multidisciplinary character of the journal.
openaire   +3 more sources

The “Quaternary” Period [PDF]

open access: yesNature, 1907
THE separation of the Quaternary period from the Recent period, which begins with the Neolithic, is attributable to the fact that an interruption was supposed to have occurred in Man's occupation of Europe. According to this view, the Recent period begins with his reappearance.
openaire   +5 more sources

Evolution and changes of the ancient Luanhe fluvial fan since the Quaternary in Tangshan, Hebei Province

open access: yesDizhi lixue xuebao, 2023
The study of the ancient Luanhe alluvial fan has focused more on the Holocene, and no systematic study has been conducted on its Pleistocene evolution and variation.
CHEN Hongqiang   +6 more
doaj   +1 more source

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