Zobrazeno 1 - 10
of 183
pro vyhledávání: '"Ian R. MacDonald"'
Autor:
Mauricio Silva, Camilo Roa, Nizar Bel Haj Ali, Carrie O’Reilly, Tarek Abichou, Ian R. MacDonald
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
In 2004, destruction of a Gulf of Mexico oil platform by Hurricane Ivan initiated a discharge of oil and gas from a water depth of 135 m, where its bundle of well conductors was broken below the seafloor near the toppled wreckage. Discharge continued
Externí odkaz:
https://doaj.org/article/3a7991904bd54a439fa898caa977148f
Publikováno v:
Remote Sensing, Vol 14, Iss 13, p 3150 (2022)
The Gulf of Mexico is a hydrocarbon-rich region characterized by the presence of floating oil slicks from persistent natural hydrocarbon seeps, which are reliably captured by synthetic aperture radar (SAR) satellite imaging. Improving the state of kn
Externí odkaz:
https://doaj.org/article/17020f4b8f3148a78cfea283f0205168
Autor:
Yann Marcon, Heiko Sahling, Ian R. MacDonald, Paul Wintersteller, Christian dos Santos Ferreira, Gerhard Bohrmann
Publikováno v:
Oceanography, Vol 31, Iss 2, Pp 194-205 (2018)
In 2003, the Chapopote asphalt flow was discovered in the southern Gulf of Mexico at a depth of 2,900 m. Subsequent exploration has expanded the known extent of asphalt volcanism across abyssal depths in much of this region. Aspects of asphalt flow m
Externí odkaz:
https://doaj.org/article/4a290e9a43854bd8a959759ef71ebe48
Autor:
Miriam Römer, Chieh-Wei Hsu, Markus Loher, Ian R. MacDonald, Christian dos Santos Ferreira, Thomas Pape, Susan Mau, Gerhard Bohrmann, Heiko Sahling
Publikováno v:
Frontiers in Marine Science, Vol 6 (2019)
This multi-disciplinary study of the hydrocarbon seepage system at Tsanyao Yang Knoll (TYK) in the southern Gulf of Mexico illustrates the amount and fate of hydrocarbons (mainly oil and methane) emanating from the seafloor structure and rising throu
Externí odkaz:
https://doaj.org/article/fcd290cb4d014e97987713de1fcc6534
Autor:
Terrone L. Rosenberry, Xavier Brazzolotto, Ian R. Macdonald, Marielle Wandhammer, Marie Trovaslet-Leroy, Sultan Darvesh, Florian Nachon
Publikováno v:
Molecules, Vol 22, Iss 12, p 2098 (2017)
Acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) hydrolyze the neurotransmitter acetylcholine and, thereby, function as coregulators of cholinergic neurotransmission. Although closely related, these enzymes display very different substrat
Externí odkaz:
https://doaj.org/article/8352544fa6454ca8a762d800956c202b
Publikováno v:
Science. 376:1300-1304
Ocean oil slicks can be attributed to natural seepages or to anthropogenic discharges. To date, the global picture of their distribution and relative natural and anthropogenic contributions remains unclear. Here, by analyzing 563,705 Sentinel-1 image
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::81d58754ba0bb6933e0f59154bc03212
https://doi.org/10.1126/science.abm5940
https://doi.org/10.1126/science.abm5940
Publikováno v:
The Neuroradiology Journal. 35:250-254
Endovascular thrombectomy (EVT) is part of first-line intervention for acute ischemic stroke management. Recent technological advances have demonstrated that large-bore catheters are an attractive approach for EVT. A multitude of approaches such as A
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e8599b8b716d89061ce822dbb6de407
https://doi.org/10.1177/19714009211036691
https://doi.org/10.1177/19714009211036691
Autor:
Eric A. D'Asaro, Joseph Katz, Oscar Garcia-Pineda, Shuyi S. Chen, John Shepherd, Eric P. Chassignet, Vassiliki H. Kourafalou, Claire B. Paris-Limouzy, Ian R. MacDonald, Scott S. Socolofsky, Michel C. Boufadel, Annalisa Bracco, David Halpern, William K. Dewar, Tamay M. Özgökmen, Dubravko Justic
Publikováno v:
Oceanography. 34:58-75
Physical transport processes such as the circulation and mixing of waters largely determine the spatial distribution of materials in the ocean. They also establish the physical environment within which biogeochemical and other processes transform mat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f7ca93b25953aa4b25ca60cf891debc
https://doi.org/10.5670/oceanog.2021.117
https://doi.org/10.5670/oceanog.2021.117
Publikováno v:
Journal of Atmospheric and Oceanic Technology. 37:1737-1751
Two video time-lapse cameras (VTLCs) were deployed by a remotely operated underwater vehicle (ROV) to observe the temporal and spatial variability of a natural hydrocarbon seep at 1180 m depth in the Green Canyon 600 lease block, Gulf of Mexico. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::26300accd26d70bebe2bd201cd32ab3f
https://doi.org/10.1175/jtech-d-19-0137.1
https://doi.org/10.1175/jtech-d-19-0137.1