Results 81 to 90 of about 32,496 (283)
Science Education, EarlyView.ABSTRACT In the era of the Framework for K‐12 Science Education and Next Generation Science Standards (NGSS), research on preparing preservice science teachers (PSTs) for NGSS‐aligned teaching practices is important. In this study, we explored PSTs' sense‐making around planning for Ambitious Science Teaching (AST) during their discussions of teaching ...
Arzu Tanis Ozcelik, Scott McDonald
wiley +1 more source
Classification of calving fronts around Antarctica [PDF]
, 2012 Iceberg calving is the largest loss term in Antarctic mass balance. The iceberg areas vary from a few square meters (growler) to several hundred square kilometres (huge tabular icebergs or ice islands) and their shape (blocky, domed or tabular) depends ...
Wesche, Christine
core
Effect of topography on subglacial discharge and submarine melting during tidewater glacier retreat. [PDF]
, 2017 -We explored secular variations in subglacial discharge and submarine melting with an idealized model -Subglacial discharge increases as tidewater glaciers retreat along retrograde beds -Submarine melting depends on subglacial discharge and ...
Amundson +51 more
core +1 more source
Journal of Glaciology, 2016 A short-term series of quantitative observations of calving activity of Fuerza Aérea Glacier (Greenwich Island, the South Shetland Islands, Antarctica) was conducted in order to test new methods of monitoring calving.
MICHAŁ PĘTLICKI, CHRISTOPHE KINNARD
doaj +1 more source
Wildlife Biology, EarlyView.Resource managers require accurate estimates of large herbivore abundance and demography to maintain ecological integrity. Common methods to count these species, including observations from low altitude helicopter flights, may conflict with other protected area management objectives and struggle to produce precise estimates for more cryptic species. To
Hanem G. Abouelezz, N. Thompson Hobbs
wiley +1 more source
Finite Element Analysis of Small Scale Continuous Calving [PDF]
, 2013 Ice shelves are floating ice masses, which are sensitive to climate changes. The main mechanisms for the mass loss of ice shelves around Antarctica are basal melting and calving.
Christmann, Julia +3 more
core
Theoretical Calving Rates from Glaciers Along Ice Walls Grounded in Water of Variable Depths [PDF]
, 1992 Calving has been studied for glaciers ranging from slow polar glaciers that calve on dry land, such as on Deception Island (63.0-degrees-S, 60.6-degrees-W) in Antarctica, through temperate Alaskan tide-water glaciers, to fast outlet glaciers that float ...
Hughes, Terence J.
core +2 more sources
Viscoelastic mechanics of tidally induced lake drainage in the Amery grounding zone [PDF]
arXiv, 2023 Drainage of supraglacial lakes to the ice-sheet bed can occur when a hydrofracture propagates downward, driven by the weight of the water in the lake. For supraglacial lakes in the grounding zones of Antarctic glaciers, the mechanics of drainage is complicated by their proximity to the grounding line.
arxiv
3D Mitochondrial Structure in Aging Human Skeletal Muscle: Insights Into MFN‐2‐Mediated Changes
Aging Cell, EarlyView.Changes in mitochondrial structure and dynamics during aging provide a mechanism for the development of age‐related sarcopenia, a condition characterized by muscle mass loss. Through the creation of three‐dimensional models of mitochondria from quadriceps muscle tissue taken from old and young humans, a loss in mitochondrial complexity was observed to ...
Estevão Scudese +52 more
wiley +1 more source
Response of Marine‐Terminating Glaciers to Forcing: Time Scales, Sensitivities, Instabilities, and Stochastic Dynamics [PDF]
, 2018 Recent observations indicate that many marine‐terminating glaciers in Greenland and Antarctica are currently retreating and thinning, potentially due to long‐term trends in climate forcing.
Haseloff, Marianne +2 more
core +2 more sources