Results 51 to 60 of about 302,803 (284)

Collisions of small ice particles under microgravity conditions - II. Does the chemical composition of the ice change the collisional properties? [PDF]

, 2014
Context. Understanding the collisional properties of ice is important for understanding both the early stages of planet formation and the evolution of planetary ring systems.
Angell, Beitz, Blum, Blum, Bridges, C. R. Hill, Chokshi, D. Heißelmann, Ehrenfreund, Fraser, Garaud, Gundlach, Güttler, H. J. Fraser, Hallbrucker, Hatzes, Heißelmann, Hertzsch, Higa, Higa, J. Blum, Kataoka, Kothe, Kothe, Krijt, Mayer, Mayor, Meisner, Min, Mutschke, Perry, Podio, Poppe, Poppe, Qi, Ros, Salter, Schegerer, Schräpler, Schräpler, Schäfer, Seizinger, Supulver, Supulver, Teiser, Teiser, Teiser, van Dishoeck, Wang, Weidenschilling, Weidenschilling, Weidling, Windmark, Windmark, Wurm, Zamankhan, Zsom, Öberg   +57 more
core   +5 more sources

An upstream open reading frame regulates expression of the mitochondrial protein Slm35 and mitophagy flux

FEBS Letters, EarlyView.
This study reveals how the mitochondrial protein Slm35 is regulated in Saccharomyces cerevisiae. The authors identify stress‐responsive DNA elements and two upstream open reading frames (uORFs) in the 5′ untranslated region of SLM35. One uORF restricts translation, and its mutation increases Slm35 protein levels and mitophagy.
Hernán Romo‐Casanueva, Ariann E. Mendoza‐Martínez, P. Abril Medina‐Flores, Carlos Campero‐Basaldua, Alexander DeLuna, Soledad Funes   +5 more
wiley   +1 more source

Ice flow velocity of the Nioghalvfjerdsfjorden Glacier and Zachariæ Isstrøm, Northeast Greenland, in the 1960s from Historical Satellite Imagery [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
The Northeast Greenland Ice Stream (NEGIS) is experiencing sustained accelerated mass loss due to the combined effects of atmospheric and ocean warming.
L. Dai, L. Dai, X. Liu, X. Liu, L. An, L. An, R. Li, R. Li   +7 more
doaj   +1 more source

Velocity increases at Cook Glacier, East Antarctica, linked to ice shelf loss and a subglacial flood event [PDF]

The Cryosphere, 2018
Cook Glacier drains a large proportion of the Wilkes Subglacial Basin in East Antarctica, a region thought to be vulnerable to marine ice sheet instability and with potential to make a significant contribution to sea level.
B. W. J. Miles, C. R. Stokes, S. S. R. Jamieson   +2 more
doaj   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

FEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li, Pedro A. Sánchez‐Murcia, Bernd Nidetzky   +2 more
wiley   +1 more source

Relationship of surface elevation changes of the Antarctic ice sheet with ice movement and subglacial water flow

Лëд и снег, 2015
The article provides phenomenological and experimental arguments that ice sheet surface fluctuation in Antarctica is mediated by ice velocity and subglacial water flow.
V. M. Kotlyakov, L. N. Vasiliev, A. B. Kachalin, M. Yu. Moskalevsky, A. S. Tyuflin   +4 more
doaj   +1 more source

Galerkin Least-Squares Stabilization in Ice Sheet Modeling - Accuracy, Robustness, and Comparison to other Techniques

, 2017
We investigate the accuracy and robustness of one of the most common methods used in glaciology for the discretization of the $\mathfrak{p}$-Stokes equations: equal order finite elements with Galerkin Least-Squares (GLS) stabilization.
Ahlkrona, Josefin, Helanow, Christian
core   +1 more source

Cell wall target fragment discovery using a low‐cost, minimal fragment library

FEBS Letters, EarlyView.
LoCoFrag100 is a fragment library made up of 100 different compounds. Similarity between the fragments is minimized and 10 different fragments are mixed into a single cocktail, which is soaked to protein crystals. These crystals are analysed by X‐ray crystallography, revealing the binding modes of the bound fragment ligands.
Kaizhou Yan, Mathew Stanley, Olawale Raimi, Andrew T. Ferenbach, Helge C Dorfmueller, Daan M. F. van Aalten   +5 more
wiley   +1 more source

Local scour around a bridge pier under ice-jammed flow condition – an experimental study

Journal of Hydrology and Hydromechanics, 2021
The appearance of an ice jam in a river crucially distorts local hydrodynamic conditions including water level, flow velocity, riverbed form and local scour processes.
Wang Jun, Hou Zhixing, Sun Hongjian, Fang Bihe, Sui Jueyi, Karney Bryan   +5 more
doaj   +1 more source

The (Glg)ABCs of cyanobacteria: modelling of glycogen synthesis and functional divergence of glycogen synthases in Synechocystis sp. PCC 6803

FEBS Letters, EarlyView.
We reconstituted Synechocystis glycogen synthesis in vitro from purified enzymes and showed that two GlgA isoenzymes produce glycogen with different architectures: GlgA1 yields denser, highly branched glycogen, whereas GlgA2 synthesizes longer, less‐branched chains.
Kenric Lee, Dimitrios Bekiari, Sofia Doello, Karl Forchhammer   +3 more
wiley   +1 more source