Zobrazeno 1 - 10
of 97
pro vyhledávání: '"Mark, Barley"'
Autor:
William, Knight, Kaveetha, Kandiah, Zoi, Vrakopoulou, Annabel, White, Lavinia, Barbieri, Nilanjana, Tewari, Jennifer, Couch, Francesco, DiMaggio, Mark, Barley, Krish, Ragunath, James, Catton, Abraham, Botha
Publikováno v:
Diseases of the Esophagus.
Summary Peroral endoscopic myotomy (POEM) is a safe and effective minimally invasive treatment for achalasia. Postoperative reflux rates remain high. The functional luminal imaging probe (FLIP) allows intraoperative measurement of lower esophageal di
Publikováno v:
Precambrian Research. 320:281-290
Current evidence for oxygenated environments in the Mesoarchean is limited to the shallowest marine and fluvio-lacustrine settings. It is not until the Neoarchean that signs of oxygenated surface waters above outer shelf and basinal depositional envi
Publikováno v:
Trends in Anaesthesia and Critical Care. 30:e176-e177
Publikováno v:
Trends in Anaesthesia and Critical Care. 30:e57
Publikováno v:
Precambrian Research. 258:24-35
We report in situ quadruple sulfur isotope analysis (32S, 33S, 34S and 36S) of a pyritized microbial mat from the ∼3480 Ma Dresser Formation, Pilbara Craton, Western Australia. These data yield positive δ34S and Δ33S, indicative of sulfur sourced
Autor:
Mark Barley, Martin D. Brasier, Martin Saunders, Matt R. Kilburn, Charlie Kong, John B. Cliff, Nicola McLoughlin, David Wacey
The 1.88-Ga Gunflint biota is one of the most famous Precambrian microfossil lagerstätten and provides a key record of the biosphere at a time of changing oceanic redox structure and chemistry. Here, we report on pyritized replicas of the iconic aut
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aab4108eb6559e8035bcad136383b23a
https://ora.ox.ac.uk/objects/uuid:6cc33425-8c8c-4bee-8377-40e7e5933c42
https://ora.ox.ac.uk/objects/uuid:6cc33425-8c8c-4bee-8377-40e7e5933c42
Publikováno v:
ResearcherID
Komatiites occur in many Archean greenstone belts and host significant Ni sulfide ore deposits. Establishing the stratigraphy and the control that stratigraphy has on the emplacement and morphology of ultramafic magmatism is crucial in understanding
Autor:
Raymond Alexander Fernand Cas, Jon Hronsky, Marco L. Fiorentini, Nicolas McKenzie Rosengren, Paul Duuring, Mark Barley, Steve Beresford, Andrew Bekker
Publikováno v:
Economic Geology. 107:781-796
The Agnew-Wiluna greenstone belt of Western Australia is the largest komatiite-hosted nickel sulfide belt in the world and contains two world-class Ni-Cu-(PGE) deposits and a host of smaller deposits. This study focuses on the broader scale geology o
Autor:
Mark Barley
Publikováno v:
Reflective Practice. 13:271-280
Within medicine, the concept of reflection is becoming a fashionable component of lifelong learning and revalidation. It remains poorly practised and misunderstood with scant guidance available on the benefits, methodology or founding principles. Usi
Autor:
Andrey Bekker, Carlos Alberto Rosière, Timothy W. Lyons, Olivier Rouxel, Noah J. Planavsky, Lee R. Kump, Kurt O. Konhauser, Ernesto Pecoits, Mark Barley, Stephen J. Mojzsis, Phillip W. Fralick, Stefan V. Lalonde
Publikováno v:
Nature
Nature, Nature Publishing Group, 2011, 478 (7369), pp.369-373. ⟨10.1038/nature10511⟩
Nature, Nature Publishing Group, 2011, 478 (7369), pp.369-373. ⟨10.1038/nature10511⟩
International audience; The enrichment of redox-sensitive trace metals in ancient marine sedimentary rocks has been used to determine the timing of the oxidation of the Earth's land surface1,2. Chromium (Cr) is among the emerging proxies for tracking