Results 71 to 80 of about 4,940,499 (251)

Active boundary layers

, 2020
The role of boundary layers in conventional liquid crystals is commonly subsumed in their anchoring on confining walls. In the classical view, anchoring enslaves the orientational field of the passive material under equilibrium conditions. In this work, we experimentally explore the role of confining walls in the behavior of an active nematic.
Hardoüin, Jérôme, Doré, Claire, Laurent, Justine, Lopez-Leon, Teresa, Ignés-Mullol, Jordi, Sagués, Francesc   +5 more
openaire   +2 more sources

The case for active block layer extensions [PDF]

ACM SIGOPS Operating Systems Review, 2008
Self-managing storage systems have recently received attention from the research community due to their promised ability of continuously adapting to best reflect high-level system goal specifications. However, this eventuality is currently being met by both conceptual and practical challenges that threaten to slow down the pace of innovation.
Jorge Guerra, Luis Useche, Medha Bhadkamkar, Ricardo Koller, Raju Rangaswami   +4 more
openaire   +2 more sources

Permafrost cores and active layer pits on Herschel Island: core attributes

, 2016
Twelve permafrost cores and active layer pits were drilled/dug on Herschel Island in order to estimate the soil organic carbon and total nitrogen contents in the first 30, 100 and 200 cm of ground.
Birgit Heim (6967238), Michael Fritz (6974498), Fritz, Michael, Myers-Smith, Isla H, Heim, Birgit, Obu, Jaroslav, Jaroslav Obu (7462529), Lantuit, Hugues, Hugues Lantuit (6974504), Juliane Wolter (6979400), Isla H Myers-Smith (7885481), Wolter, Juliane   +11 more
core   +1 more source

Translophagy—A potential link between autophagy impairment and translational errors

FEBS Letters, EarlyView.
Neurodegenerative diseases are characterised by the accumulation of abnormal proteins and protein aggregates, but their origin often remains unknown. We propose that selective autophagy removes damaged protein‐making machinery, preventing errors during protein synthesis.
Mykola V. Korolchuk, Gailing Ma, Robin Antrobus, Diego Manni, Marco Trevisan‐Herraz, Mustafa Khwaja, Max Brown, Gavin D. Richardson, Masaaki Komatsu, Daniel Erskine, Viktor I. Korolchuk, Tetsushi Kataura   +11 more
wiley   +1 more source

Structures of mycobacterial 3‐methylcrotonyl‐CoA carboxylase reveal carrier‐domain translocation between catalytic sites

FEBS Letters, EarlyView.
Mycobacterial 3‐methylcrotonyl‐CoA carboxylase uses a mobile biotin‐carrying domain to shuttle a carboxyl group between two catalytic sites, enabling carboxylation of 3‐methylcrotonyl‐CoA during leucine breakdown. Cryo‐electron microscopy captures the carrier at both sites and reveals an inward loop movement that may prevent futile rebinding to the ...
Ajit Yadav, Bogdan I. Florea, Sebastian Geibel   +2 more
wiley   +1 more source

From junk to function — How weak selection in eukaryotes builds new parts and drives genomic complexity

FEBS Letters, EarlyView.
How do genomes gain new functional parts? In eukaryotes, which tend to evolve under weak selection, much of the genome is junk. Palazzo and Qiu borrow the logic of Markov chains to show how non‐functional DNA becomes functional through the appearance of intermediate states, which arise due to epistasis, buffering, and biochemical messiness, allowing ...
Alexander F. Palazzo, Yi Qiu
wiley   +1 more source

Permafrost cores and active layer pits on Herschel Island: link to shape files

, 2016
Twelve permafrost cores and active layer pits were drilled/dug on Herschel Island in order to estimate the soil organic carbon and total nitrogen contents in the first 30, 100 and 200 cm of ground.
Birgit Heim (6967238), Michael Fritz (6974498), Fritz, Michael, Myers-Smith, Isla H, Heim, Birgit, Obu, Jaroslav, Jaroslav Obu (7462529), Lantuit, Hugues, Hugues Lantuit (6974504), Juliane Wolter (6979400), Isla H Myers-Smith (7885481), Wolter, Juliane   +11 more
core   +1 more source

The heterodimeric amino acid transporters (HAT) of the SLC7/SLC3 family: A structure−function relationships and relevance to human pathology

FEBS Letters, EarlyView.
Heterodimeric amino acid transporters consist of SLC7 and SLC3 family proteins arranged in a conserved structural organization. They regulate nutrient transport across cell membranes, supporting essential cellular functions. These transporters also contribute to xenobiotic/drug uptake and distribution.
Mariafrancesca Scalise, Tiziano Mazza, Raffaella Scanga, Lara Console, Michele Galluccio, Cesare Indiveri   +5 more
wiley   +1 more source

Predicting Seasonal Deformation Using InSAR and Machine Learning in the Permafrost Regions of the Yangtze River Source Region

Water Resources Research
Quantifying seasonal deformation is essential for accurately determining the thickness of the active layer and the distribution of water content within it, providing insights into the freeze‐thaw dynamics of permafrost environments and their sensitivity ...
Jie Chen, Xingchen Lin, Tonghua Wu, Junming Hao, Xiaodong Wu, Defu Zou, Xiaofan Zhu, Guojie Hu, Yongping Qiao, Dong Wang, Sizhong Yang, Lina Zhang   +11 more
doaj   +1 more source

Kinetics of Ion Transport in Perovskite Active Layers and Its Implications for Active Layer Stability

Journal of the American Chemical Society, 2015
Solar cells fabricated using alkyl ammonium metal halides as light absorbers have the right combination of high power conversion efficiency and ease of fabrication to realize inexpensive but efficient thin film solar cells. However, they degrade under prolonged exposure to sunlight. Herein, we show that this degradation is quasi-reversible, and that it
Monojit, Bag, Lawrence A, Renna, Ramesh Y, Adhikari, Supravat, Karak, Feng, Liu, Paul M, Lahti, Thomas P, Russell, Mark T, Tuominen, D, Venkataraman   +8 more
openaire   +3 more sources