Results 91 to 100 of about 28,257 (311)

Meteorological conditions characteristic of anthropogenic glaciation of supercooled liquid-water clouds and of anthropogenic CCN perturbations on clouds

open access: yes
We used ERA5 atmospheric reanalysis data to characterise the meteorological conditions characteristic of anthropogenic glaciation of supercooled liquid-water clouds and of cloud perturbations induced by anthropogenic cloud condensation ...
Keernik, Hannes   +2 more
core   +1 more source

TP53 Loss Elevates NF‐κB‐IFN‐β‐MHC‐Ia Signaling to Promote NK Cell Resistance in Osteosarcoma

open access: yesAdvanced Science, EarlyView.
TP53 loss in a transforming or osteosarcoma cell promotes cytosolic DNA accumulation, activating NF‐κB‐dependent IFN‐β production. Autocrine IFN‐β signaling increases cell‐surface HLA‐Ia expression, strengthens inhibitory KIR signaling in natural killer cells, and thereby enables the affected cell to evade NK cell‐mediated cytotoxicity.
Guihui Qin   +9 more
wiley   +1 more source

New evidence for the Hirnantian (Upper Ordovician) in Belgium? An integrated isotopical, biostratigraphic and sedimentologic approach

open access: yesCarnets de Géologie, 2005
The Hirnantian is an important time in Earth history as it includes one of the major episodes of continental glaciation and marine mass extinction (e.g. Brenchley et alii, 1994).
Grassineau Nathalie   +4 more
doaj  

Present-day changes of mountain glaciers on the southern slope of the Dzhungarian Alatau range

open access: yesЛëд и снег, 2015
Glacierization of southern slope of the Dzhungarian (Zhetysu) Alatau range was estimated by means of data obtained by operational satellite Landsat 7 surveys on August 19 and September 2011 (sensors ETM+) with the use of digital relief models (ASTER GDEM)
A. L. Kokarev, I. N. Shesterova
doaj   +1 more source

Pared-down landscapes in Antarctica [PDF]

open access: yes, 1971
The frigid-arid climate that now prevails in ice-free parts of Victoria Land, Antarctica, inhibits glacial erosion. If certain landscapes, more or less remote from the great troughs of outlet glaciers, have been glaciated in the past, as seems very ...
Cotton, C.A., Wilson, A.T.
core  

Neoproterozoic glaciation in the Earth System

open access: yes, 2007
The Neoproterozoic contains severe glacial intervals (750–580 Ma) including two extending to low palaeomagnetic latitudes. Paucity of radiometric dates indicates the need for chronostratigraphic tools.
Fairchild, I.   +3 more
core   +1 more source

A New Ordered Transformation‐Induced Plasticity Enables Exceptional Strength and Ductility in a B2 Medium‐Entropy Alloy

open access: yesAdvanced Science, EarlyView.
A novel B2‐ordered Ti‐Zr‐V‐Al medium‐entropy intermetallic is developed through controlled metastability engineering, which activates an ordered TRIP effect via a new B2→D019‐α2 transformation with a distinctive {0001}α2//{110}B2, <11‐20>α2//<100>B2 orientation relationship. This alloy achieves an elongation of ∼7%, a strength of ∼1.1 GPa, and superior
Chaohua Li   +8 more
wiley   +1 more source

Coastal glaciers advanced onto Jameson Land, East Greenland during the late glacial–early Holocene Milne Land Stade

open access: yesPolar Research, 2014
We report on 10Be and optically stimulated luminescence ages from moraines and glaciolacustrine sediments on eastern Jameson Land, East Greenland. Sampled landforms and sediment are associated with advances of outlet glaciers from the local Liverpool ...
Helena Alexanderson, Lena Håkansson
doaj   +1 more source

Glaciation of Siberia and the problem of massive ice beddings

open access: yesЛëд и снег, 2017
As a result of many years of the author’s studies of glaciers and ground ices, a great amount of factual material has been collected for a purpose to analyze a possibility of burying the glaciers in the permafrost zone and to esti‑ mate a time of their ...
V. S. Sheinkman
doaj   +1 more source

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