Zobrazeno 1 - 10
of 132
pro vyhledávání: '"Scott D Wankel"'
Autor:
S. Emil Ruff, Pauline Humez, Isabella Hrabe de Angelis, Muhe Diao, Michael Nightingale, Sara Cho, Liam Connors, Olukayode O. Kuloyo, Alan Seltzer, Samuel Bowman, Scott D. Wankel, Cynthia N. McClain, Bernhard Mayer, Marc Strous
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-17 (2023)
Abstract Around 50% of humankind relies on groundwater as a source of drinking water. Here we investigate the age, geochemistry, and microbiology of 138 groundwater samples from 95 monitoring wells (
Externí odkaz:
https://doaj.org/article/ee6d62a46a55456ba84f047cdf1145e1
Autor:
Andrew W. Dale, David Clemens, Kirstin Dähnke, Frederike Korth, Scott D. Wankel, Ulrike Schroller-Lomnitz, Klaus Wallmann, Stefan Sommer
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
Benthic nitrogen cycling in the Mauritanian upwelling region (NW Africa) was studied in June 2014 from the shelf to the upper slope where minimum bottom water O2 concentrations of 25 µM were recorded. Benthic incubation chambers were deployed at 9 s
Externí odkaz:
https://doaj.org/article/9f6e14a5569a4244ae8de2abddae8054
Autor:
Christopher Powers, Fatma Gomaa, Elizabeth B. Billings, Daniel R. Utter, David J. Beaudoin, Virginia P. Edgcomb, Colleen M. Hansel, Scott D. Wankel, Helena L. Filipsson, Ying Zhang, Joan M. Bernhard
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
Certain benthic foraminifera thrive in marine sediments with low or undetectable oxygen. Potential survival avenues used by these supposedly aerobic protists include fermentation and anaerobic respiration, although details on their adaptive mechanism
Externí odkaz:
https://doaj.org/article/7b39420db4a34a809353f1e79e5437fc
Autor:
Victoria Preston, Genevieve Flaspohler, Jason Kapit, William Pardis, Sarah Youngs, Donald E. Martocello, Nicholas Roy, Peter R. Girguis, Scott D. Wankel, Anna P. M. Michel
Publikováno v:
Frontiers in Earth Science, Vol 10 (2022)
Seafloor hydrothermalism plays a critical role in fundamental interactions between geochemical and biological processes in the deep ocean. A significant number of hydrothermal vents are hypothesized to exist, but many of these remain undiscovered due
Externí odkaz:
https://doaj.org/article/4ddabaf36eeb4149b61e1d9c8027b0ec
Publikováno v:
Frontiers in Microbiology, Vol 13 (2022)
Natural-abundance measurements of nitrate and nitrite (NOx) isotope ratios (δ15N and δ18O) can be a valuable tool to study the biogeochemical fate of NOx species in the environment. A prerequisite for using NOx isotopes in this regard is an underst
Externí odkaz:
https://doaj.org/article/9e8208ed523547a2b30d3cc290ebb62c
Autor:
Jessica R. Zehnpfennig, Colleen M. Hansel, Scott D. Wankel, Cody S. Sheik, Dean J. Horton, Carl H. Lamborg, Deric R. Learman
Publikováno v:
Frontiers in Marine Science, Vol 9 (2022)
Microbial community dynamics are influenced not only by biological but also physical and chemical phenomena (e.g., temperature, sunlight, pH, wave energy) that vary on both short and long-time scales. In this study, samples of continental shelf water
Externí odkaz:
https://doaj.org/article/ac712684b4af4625bb832ad09adf9392
Autor:
Kalina C. Grabb, William A. Pardis, Jason Kapit, Scott D. Wankel, Eric B. Hayden, Colleen M. Hansel
Publikováno v:
Sensors, Vol 22, Iss 17, p 6683 (2022)
Reactive oxygen species (ROS) are key drivers of biogeochemical cycling while also exhibiting both positive and negative effects on marine ecosystem health. However, quantification of the ROS superoxide (O2−) within environmental systems is hindere
Externí odkaz:
https://doaj.org/article/a8b6a912c63a4821ad0ba48e91938b09
Autor:
Chadlin M. Ostrander, Sune G. Nielsen, Hayley J. Gadol, Luciana Villarroel, Scott D. Wankel, Tristan J. Horner, Jerzy Blusztajn, Colleen M. Hansel
Publikováno v:
Geochimica et Cosmochimica Acta. 348:397-409
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::367df080277203a10d20e9578f6febf6
https://doi.org/10.1016/j.gca.2023.03.028
https://doi.org/10.1016/j.gca.2023.03.028
Publikováno v:
Geochemistry, Geophysics, Geosystems, Vol 21, Iss 11, Pp n/a-n/a (2020)
Abstract Marine ferromanganese deposits, often called the scavengers of the sea, adsorb and coprecipitate with a wide range of metals of great interest for paleo‐environmental reconstructions and economic geology. The long (up to ∼75 Ma), near‐
Externí odkaz:
https://doaj.org/article/7d2617d08dd64c8893010ba7a46452c3
Publikováno v:
Sensors, Vol 22, Iss 5, p 1709 (2022)
Based on knowledge of their production pathways, and limited discrete observations, a variety of short-lived chemical species are inferred to play active roles in chemical cycling in the sea. In some cases, these species may exert a disproportionate
Externí odkaz:
https://doaj.org/article/487a5d55e7f041d1b81083634fa7e9cf