Results 71 to 80 of about 2,488,470 (307)

Sub-debris melt rates on southern Inylchek Glacier, central Tian Shan [PDF]

open access: yes, 2008
Melt rates of glacier surfaces are strongly influenced by the existence of a debris cover. Dependent on thickness and other physical parameters the debris layer can enhance or reduce ablation as compared to bare ice conditions.
Lambrecht, Astrid   +7 more
core   +1 more source

Directing Near‐Perfect (001) Orientation in Wafer‐Scale BiOI Thin Films via Halide‐Mediated van der Waals Stacking

open access: yesAdvanced Materials, EarlyView.
Our work introduces a new framework that fundamentally changes how orientation in bismuth oxyhalide systems is approached. Comprehensive experiments, backed by theoretical models, reveal the pivotal role of halide anions to modify the van der Waals stacking energies required to direct orientation. Our method enables the fabrication of near perfect (001)
Gabriel Aygur   +10 more
wiley   +1 more source

Ice thickness estimates of Lemon Creek Glacier, Alaska, from active-source seismic imaging

open access: yesJournal of Glaciology, 2021
Lemon Creek Glacier, a temperate valley glacier in the Juneau Icefield of Southeast Alaska, is the site of long running (>60 years) glaciological studies.
Stephen A. Veitch   +5 more
doaj   +1 more source

The distribution of basal motion beneath a High Arctic polythermal glacier [PDF]

open access: yes, 2003
The longitudinal pattern of surface velocity of a large, predominantly colds polythermal glacier (John Evans Glacier, Ellesmere Island, Canada) was measured over summer and winter periods.
Nienow, Peter W.   +12 more
core   +1 more source

Introducing Borsantrazole: A Trifunctional Boron‐Based Pyrazole That Extends the Lifespan of Amyotrophic Lateral Sclerosis Mice

open access: yesAdvanced Science, EarlyView.
Herein we report a boron‐based pyrazole, (Borsantrazole ‐ a small molecule that selectively targets oxidative stress) that significantly increases survival, reduces weight loss, delays disease onset, and affects global protein changes in the SOD1‐G37R mouse model of ALS.
Nitesh Sanghai   +9 more
wiley   +1 more source

Single‐cell Transcriptome Profiling Reveals Gene Regulatory Networks and Key Genes in the Root Epidermis and Cortical Cells Associated with Early Nodulation in Glycine Max

open access: yesAdvanced Science, EarlyView.
Single‐cell transcriptomics of soybean roots soon after rhizobial inoculation reveals epidermal and cortical cell‐specific programs and gene‐regulatory networks acting in symbiosis establishment. We identify an ethylene‐driven regulatory circuit involving WRKY6.3/6.4 transcription factors targeting select Nod19 genes that promotes infection‐thread ...
Yongbin Zhuang   +17 more
wiley   +1 more source

A geophysical and glaciological survey of the highest tropical mountain glaciers (Mt. Huascarán, Andes)

open access: yesJournal of Glaciology
Peru hosts a significant portion of the world’s tropical glaciers, which are undergoing rapid mass loss due to climate change. Knowledge of the ice volume and bedrock topography of these glaciers is important for predicting changes in glacier dynamics ...
Stanislav Kutuzov   +5 more
doaj   +1 more source

Global glaciological models: a new stage in the development of methods for predicting glacier evolution. Part 1. General approach and model architecture

open access: yesЛëд и снег, 2021
For several decades, mathematical models of mountain glaciers and ice sheets have been used to study the dynamics of the cryosphere. In recent years, a new step in glaciological modeling has made possible to recon- struct processes in mountain-glacial ...
T. N. Postnikova, O. O. Rybak
doaj   +1 more source

A Model for Sedimentation by Tidewater Glaciers [PDF]

open access: yesAnnals of Glaciology, 1981
Sampling of sediment from the fjord floor in front of tidewater glaciers in Glacier Bay, Alaska, has provided information about processes in this restricted glacimarine (Dreimanis 1979) setting. Sediment sampling, in conjunction with oceanographic and glacial dynamics data, has also enabled the discrimination of sediment types and their facies ...
openaire   +1 more source

Modeling Ablation on Place Glacier, British Columbia, from Glacier and Off-glacier Data Sets [PDF]

open access: yesArctic, Antarctic, and Alpine Research, 2009
Abstract The results of two simulations of hourly ablation, from late July to September 2002, at a site on the Place Glacier are described. First, ablation is modeled from a data set collected at the glacier site; second, from a data set collected off-glacier at a site below the glacier tongue.
D. Scott Munro, Marzena Marosz-Wantuch
openaire   +1 more source

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