Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Laura A. Stevens"'
Publikováno v:
Journal of Glaciology, Vol 69, Pp 475-486 (2023)
Basal crevasses are macroscopic structural discontinuities at the base of ice sheets and glaciers that arise by fracture. Motivated by observations and by the mechanics of elastic fracture, we hypothesise that spatial variations in basal stress (in t
Externí odkaz:
https://doaj.org/article/68bb383bd8964d56b06e7ffc46ce750d
Autor:
Laura A. Stevens, Meredith Nettles, James L. Davis, Timothy T. Creyts, Jonathan Kingslake, Ian J. Hewitt, Aaron Stubblefield
Publikováno v:
Nature Communications, Vol 13, Iss 1, Pp 1-11 (2022)
The effect of increasing surface melt on annual discharge is unknown for the Greenland Ice Sheet. Here, the authors find that Greenland’s largest single-glacier contributor to sea-level rise accommodates basal floods following supraglacial lake-dra
Externí odkaz:
https://doaj.org/article/250ee4ce79114d6c80037dfc27a2ac7c
Autor:
Laura A. Stevens, Meredith Nettles, James L. Davis, Timothy T. Creyts, Jonathan Kingslake, Andreas P. Ahlstrøm, Tine B. Larsen
Publikováno v:
Journal of Glaciology, Vol 68, Pp 77-89 (2022)
The influence of surface melt on the flow of Greenland's largest outlet glaciers remains poorly known and in situ observations are few. We use field observations to link surface meltwater forcing to glacier-wide diurnal velocity variations on East Gr
Externí odkaz:
https://doaj.org/article/a88b8a0f67c54aa19f31f9e377e5cea8
Autor:
Douglas R. MacAyeal, Olga V. Sergienko, Alison F. Banwell, Grant J. Macdonald, Ian C. Willis, Laura A. Stevens
Publikováno v:
Journal of Glaciology, Vol 67, Pp 885-902 (2021)
We develop a two-dimensional, plan-view formulation of ice-shelf flow and viscoelastic ice-shelf flexure. This formulation combines, for the first time, the shallow-shelf approximation for horizontal ice-shelf flow (and shallow-stream approximation f
Externí odkaz:
https://doaj.org/article/f560b7c12bff44e4985f1dc2f7373dd1
Autor:
Ching-Yao Lai, Laura A. Stevens, Danielle L. Chase, Timothy T. Creyts, Mark D. Behn, Sarah B. Das, Howard A. Stone
Publikováno v:
Nature Communications, Vol 12, Iss 1, Pp 1-10 (2021)
Hydraulic transmissivity under the 1km-thick Greenland Ice Sheet was inferred by ice-sheet uplift relaxation after rapid lake drainage events. A two-order-of-magnitude increase in hydraulic transmissivity was found throughout the melt season.
Externí odkaz:
https://doaj.org/article/bb6ae85caece42c5a2d0edbfbec7eb19
Publikováno v:
Journal of Glaciology, Pp 1-14
Global Navigation Satellite System (GNSS) observations and ground-based timelapse photography obtained over the record-high 2019/2020 melt season are combined to characterise the flexure and fracture behaviour of a previously formed doline on George
Externí odkaz:
https://doaj.org/article/ef590535795e49c49b108cbb50ec2e67
Autor:
Kenneth E. Kunkel, Xungang Yin, Liqiang Sun, Sarah M. Champion, Laura E. Stevens, Katharine M. Johnson
Publikováno v:
Frontiers in Water, Vol 4 (2022)
Trends in extreme precipitation and their causes were analyzed for events within the Laurentian Great Lakes for several periods: 1908–2020, 1949–2020, 1980–2019, and 1980–2020. Upward trends in extreme precipitation were found for multiple me
Externí odkaz:
https://doaj.org/article/0429983921834d1eaad7f2a1233497b0
Autor:
Sarah Rockowitz, James Rockey, Laura M. Stevens, Melissa F. Colloff, Wangu Kanja, Heather D. Flowe
Publikováno v:
Victims & Offenders. :1-24
Publikováno v:
Biomimetics, Vol 7, Iss 1, p 25 (2022)
Biomimicry education is grounded in a set of natural design principles common to every known lifeform on Earth. These Life’s Principles (LPs) (cc Biomimicry 3.8), provide guidelines for emulating sustainable strategies that are field-tested over ne
Externí odkaz:
https://doaj.org/article/cf386f060c4a4df1b1679fa9119630d0
Autor:
Laura E. Stevens, Guillermo Peluffo, Xintao Qiu, Daniel Temko, Anne Fassl, Zheqi Li, Anne Trinh, Marco Seehawer, Bojana Jovanović, Maša Alečković, Callahan M. Wilde, Renee C. Geck, Shaokun Shu, Natalie L. Kingston, Nicholas W. Harper, Vanessa Almendro, Alanna L. Pyke, Shawn B. Egri, Malvina Papanastasiou, Kendell Clement, Ningxuan Zhou, Sarah Walker, Jacqueline Salas, So Yeon Park, David A. Frank, Alexander Meissner, Jacob D. Jaffe, Piotr Sicinski, Alex Toker, Franziska Michor, Henry W. Long, Beth A. Overmoyer, Kornelia Polyak
Publikováno v:
Cancer research : an official organ of the American Association for Cancer Research
Inflammatory breast cancer (IBC) is a difficult-to-treat disease with poor clinical outcomes due to high risk of metastasis and resistance to treatment. In breast cancer, CD44+CD24− cells possess stem cell-like features and contribute to disease pr