Výsledky vyhledávání - "P. Douglas Archer"

Akademický článek

Identification and Characterization of Cefotaxime Resistant Bacteria in Beef Cattle.

Autor: Raies A Mir, Thomas A Weppelmann, Judith A Johnson, Douglas Archer, J Glenn Morris, KwangCheol Casey Jeong

Publikováno v: PLoS ONE, Vol 11, Iss 9, p e0163279 (2016)

Third-generation cephalosporins are an important class of antibiotics that are widely used in treatment of serious Gram-negative bacterial infections. In this study, we report the isolation of bacteria resistant to the third-generation cephalosporin

Externí odkaz: https://doaj.org/article/256dcafe3d8846bf808d938078b55ae5

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Constraints on the Mineralogy and Geochemistry of Vera Rubin Ridge, Gale Crater, Mars, From Mars Science Laboratory Sample Analysis at Mars Evolved Gas Analyses

Publikováno v: Journal of Geophysical Research: Planets. 125

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::751eebddef55d78492bcb5cfd6002f6e
https://doi.org/10.1029/2019je006309

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The nitrate/(per)chlorate relationship on Mars

Autor: Brad Sutter, Paul R. Mahaffy, Rafael Navarro-González, P. Douglas Archer, Jennifer C. Stern, W. Andrew Jackson, Douglas W. Ming, Christopher P. McKay

Publikováno v: Geophysical Research Letters. 44:2643-2651

Nitrate was recently detected in Gale Crater sediments on Mars at abundances up to approximately 600 mg/kg, confirming predictions of its presence at abundances consistent with models based on impact-generated nitrate and other sources of fixed nitro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8f572278aacae5038bb8d610d4f6b5e6
https://doi.org/10.1002/2016gl072199

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Abiotic Input of Fixed Nitrogen by Bolide Impacts to Gale Crater During the Hesperian: Insights From the Mars Science Laboratory

Publikováno v: Journal of Geophysical Research. Planets
Journal of Geophysical Research. Planets, Wiley-Blackwell, 2019, 124 (1), pp.94-113. ⟨10.1029/2018je005852⟩
Digital.CSIC. Repositorio Institucional del CSIC
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Digibug. Repositorio Institucional de la Universidad de Granada
Journal of Geophysical Research. Planets, 2019, 124 (1), pp.94-113. ⟨10.1029/2018je005852⟩

Molecular hydrogen (H2) from volcanic emissions is suggested to warm the Martian surface when carbon dioxide (CO2) levels dropped from the Noachian (4100 to 3700 Myr) to the Hesperian (3700 to 3000 Myr). Its presence is expected to shift the conversi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::94d3324be915a6638be53264bde31f45
http://hdl.handle.net/10261/203453

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A Review of Sample Analysis at Mars-Evolved Gas Analysis Laboratory Analog Work Supporting the Presence of Perchlorates and Chlorates in Gale Crater, Mars

Autor: Brad Sutter, Paul R. Mahaffy, María Paz Zorzano, P. Douglas Archer, Javier Martin-Torres, S. J. Ralston, Rafael Navarro-González, Douglas W. Ming, Jennifer L. Eigenbrode, Richard V. Morris, J. V. Clark, V. Tu, Amy McAdam, Elizabeth B. Rampe, Daniel P. Glavin

Publikováno v: Minerals, Vol 11, Iss 475, p 475 (2021)
DIGITAL.INTA Repositorio Digital del Instituto Nacional de Técnica Aeroespacial
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The Sample Analysis at Mars (SAM) instrument on the Curiosity rover has detected evidence of oxychlorine compounds (i.e., perchlorates and chlorates) in Gale crater, which has implications for past habitability, diagenesis, aqueous processes, interpr

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb99b5fc40c9968942cba9607d5caacc
https://doi.org/10.3390/min11050475

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Recognizing sulfate and phosphate complexes chemisorbed onto nanophase weathering products on Mars using in-situ and remote observationsk

Autor: David G. Agresti, P. Douglas Archer, Elizabeth B. Rampe, Richard V. Morris, Douglas W. Ming

Publikováno v: American Mineralogist. 101:678-689

Orbital and in-situ data from the surface of Mars indicate that nanophase weathering products are important constituents of martian rocks and soils. Nanophase minerals have the capacity to chemisorb anions like sulfate and phosphate onto their surfac

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7cd17876b22eff309e30dccd966cd815
https://doi.org/10.2138/am-2016-5408ccbyncnd

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Major volatiles evolved from eolian materials in Gale crater

Autor: C. A. Knudson, Cyril Szopa, Heather B. Franz, Charles Malespin, Jennifer L. Eigenbrode, Brad Sutter, Jennifer C. Stern, G. M. Wong, Douglas W. Ming, Rafael Navarro-González, Caroline Freissinet, P. Douglas Archer, Paul R. Mahaffy, Amy McAdam

Publikováno v: Geophysical Research Letters
Geophysical Research Letters, 2018, 45 (19), pp.10,240-10,248. ⟨10.1029/2018GL079059⟩
Geophysical Research Letters, American Geophysical Union, 2018, 45 (19), pp.10,240-10,248. ⟨10.1029/2018GL079059⟩

International audience; The Sample Analysis at Mars (SAM) on the Curiosity rover analyzed the major volatile content of four eolian samples at three locations in Gale crater. The Rocknest sample was taken from an inactive sand shadow with a significa

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bddedb8753c1bf80c8129f75784fcd35
https://insu.hal.science/insu-01876721

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