Zobrazeno 1 - 10
of 271
pro vyhledávání: '"Ariel D Anbar"'
Autor:
Chris Mead, Chad Price, Logan E Gin, Ariel D Anbar, James P Collins, Paul LePore, Sara E Brownell
Publikováno v:
PLoS ONE, Vol 18, Iss 10, p e0288748 (2023)
Fully online degree programs are an increasingly important part of the higher education ecosystem. Among the many challenges raised by the growth of fully online courses and degree programs is the question: Are institutions providing online students
Externí odkaz:
https://doaj.org/article/a7f61318d8144517b794fc8b6832650e
Autor:
Chris Mead, K Supriya, Yi Zheng, Ariel D Anbar, James P Collins, Paul LePore, Sara E Brownell
Publikováno v:
PLoS ONE, Vol 15, Iss 12, p e0243916 (2020)
Online education has grown rapidly in recent years with many universities now offering fully online degree programs even in STEM disciplines. These programs have the potential to broaden access to STEM degrees for people with social identities curren
Externí odkaz:
https://doaj.org/article/5552859901354a12a3ac3aa966c1ce3a
Publikováno v:
Frontiers in Education, Vol 7 (2022)
Surviving Extinction is an interactive, adaptive, digital learning experience through which students learn about the history of vertebrate evolution over the last 350 million years. This experience is self-contained, providing students with immediate
Externí odkaz:
https://doaj.org/article/69bf76fdae044546beeeb3010c4bd608
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)
The early Earth’s atmosphere had very low oxygen levels for hundreds of millions of years, until the 2.4 Ga Great Oxidation Event, which remains poorly understood. Here, the authors show that reducing Archean volcanic gases could have prevented atm
Externí odkaz:
https://doaj.org/article/88b11af823444112967ea95e8b8127a0
Publikováno v:
Journal of Geoscience Education. :1-17
Autor:
Marc Neveu, Ariel D. Anbar, Alfonso F. Davila, Daniel P. Glavin, Shannon M. MacKenzie, Charity M. Phillips-Lander, Brent Sherwood, Yoshinori Takano, Peter Williams, Hajime Yano
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 7 (2020)
Evidence suggests that Saturn's icy moon Enceladus has a subsurface ocean that sources plumes of water vapor and ice vented to space from its south pole. In situ analyses of this material by the Cassini spacecraft have shown that the ocean contains k
Externí odkaz:
https://doaj.org/article/e44f025a0b3a4cdd90dacbe67a667634
Autor:
Ruoyu Sun, Yi Liu, Jeroen E. Sonke, Zhang Feifei, Yaqiu Zhao, Yonggen Zhang, Jiubin Chen, Cong-Qiang Liu, Shuzhong Shen, Ariel D. Anbar, Wang Zheng
Publikováno v:
Communications Earth & Environment. 4
The driving forces, kill and recovery mechanisms for the end-Permian mass extinction (EPME), the largest Phanerozoic biological crisis, are under debate. Sedimentary records of mercury enrichment and mercury isotopes have suggested the impact of volc
Autor:
David J. Des Marais, Maria C. Farmer, Ariel D. Anbar, Jonathan Zaloumis, Svetlana Shkolyar, Charlene Estrada, Sherry L. Cady
Publikováno v:
Astrobiology.
Publikováno v:
Geochimica et Cosmochimica Acta. 326:273-287
The uraniumisotopic composition(δ238U) of bulk marinecalcium carbonateshas been extensively explored as a promising paleoredox proxy to track the extent of global oceanic anoxia in deep time. Multiple studies have examined whether primary calcium ca
Autor:
Gwyneth W. Gordon, Moutusi Roy, Chadlin M. Ostrander, Silke Severmann, Brian Kendall, Timothy W. Lyons, Ariel D. Anbar, Wang Zheng
Publikováno v:
Geochimica et Cosmochimica Acta. 316:87-104
Sedimentary rocks and minerals formed during the final two-hundred million years of the Archean Eon (2.7 to 2.5 billion years ago, or Ga) are more depleted in 56Fe than at any other time in Earth’s past. Three hypotheses are proposed to explain the