Results 51 to 60 of about 5,429,053 (296)

Changes in the 1963–2013 shallow ground thermal regime in Russian permafrost regions

Environmental Research Letters, 2015
Spatial variability and temporal trends of the shallow ground thermal regime and permafrost active-layer thickness (ALT) were estimated over 1963–2013 using daily soil temperature data available from stations of the Russian Hydrometeorological Service ...
Dmitry A Streletskiy, Artem B Sherstiukov, Oliver W Frauenfeld, Frederick E Nelson   +3 more
doaj   +1 more source

Soil conditions required for reaction wood formation of drunken trees in a continuous permafrost region

Arctic, Antarctic, and Alpine Research, 2020
Black spruce trees lean to form “drunken” forest on degrading permafrost; however, the causes of tree leaning on continuous permafrost remain unclear. Leaning events are recorded by reaction wood formation in tree rings, and it remains unclear what soil ...
Kazumichi Fujii, Koh Yasue, Yojiro Matsuura, Akira Osawa   +3 more
doaj   +1 more source

Validation of Permafrost Active Layer Estimates from Airborne SAR Observations

Remote Sensing, 2021
In permafrost regions, active layer thickness (ALT) observations measure the effects of climate change and predict hydrologic and elemental cycling. Often, ALT is measured through direct ground-based measurements. Recently, synthetic aperture radar (SAR)
Andrew D. Parsekian, Richard H. Chen, Roger J. Michaelides, Taylor D. Sullivan, Leah K. Clayton, Lingcao Huang, Yuhuan Zhao, Elizabeth Wig, Mahta Moghaddam, Howard Zebker, Kevin Schaefer   +10 more
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Organic Carbon Mineralization and Bacterial Community of Active Layer Soils Response to Short-Term Warming in the Great Hing’an Mountains of Northeast China

Frontiers in Microbiology, 2021
As a buffer layer for the energy and water exchange between atmosphere and permafrost, the active layer is sensitive to climate warming. Changes in the thermal state in active layer can alter soil organic carbon (SOC) dynamics. It is critical to identify
Xingfeng Dong, Xingfeng Dong, Chao Liu, Chao Liu, Dalong Ma, Dalong Ma, Yufei Wu, Yufei Wu, Haoran Man, Haoran Man, Xiangwen Wu, Xiangwen Wu, Miao Li, Miao Li, Shuying Zang, Shuying Zang   +15 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source

Single-Layer Bandpass Active Frequency Selective Surface [PDF]

, 2008
A single-layer, bandpass, active FSS is presented. It shows good angle of incidence stability for TE incidence, at the operating frequency of 2.45 GHz. It is based on circular loop aperture with each unit cell having four PIN diodes.
Kenneth L. Ford, Chinthana Panagamuwa (1258632), Ford, Kenneth L., Weily, Andrew R., Ghaffer I. Kiani (7204973), Karu P. Esselle (7204976), John C. Batchelor (7206521), Ghaffer I. Kiani, Panagamuwa, C., Karu P. Esselle, John C. Batchelor, Esselle, Karu P., Ghaffer, I Kiani., Kenneth L. Ford (7204979), Batchelor, John C., Andrew R. Weily, C. Panagamuwa, Andrew R. Weily (7204982)   +17 more
core   +1 more source

The main results of monitoring the power of the active layer at CALM sites of the Nadymsky object

Vestnik MGTU
Monitoring of the thickness of the active layer within the lake-marsh type of terrain in the northern taiga was carried out at three sites organized in 1997, 2013 and 2022.
Gravis A. G., Ustinova E. V., Ponomareva O. E., Drozdov D. S., Berdnikov N. M., Golubkova Ya. A.   +5 more
doaj   +1 more source

Salmonella lipopolysaccharide‐containing supported lipid bilayers as platforms to study bacteriophage interactions

FEBS Letters, EarlyView.
We present robust protocols for the preparation of supported lipid bilayers (SLBs) incorporating either Salmonella smooth LPS or outer membrane vesicles (OMVs). We use a combination of quartz crystal microbalance with dissipation (QCM‐D) and fluorescence microscopy to both characterize the SLBs of various compositions and to probe their interactions ...
Hudson P. Pace, Alyssa Borges, Charles Arnaud, Tove Karlsson, Nina K. Bröker, Stefanie Barbirz, Marta Bally   +6 more
wiley   +1 more source

Active Layer and Permafrost Investigations Using Geophysical and Geocryological Methods—A Case Study of the Khanovey Area, Near Vorkuta, in the NE European Russian Arctic

Frontiers in Earth Science, 2022
Permafrost in the NE European Russian Arctic is suffering from some of the highest degradation rates in the world. The rising mean annual air temperature causes warming permafrost, the increase in the active layer thickness (ALT), and the reduction of ...
Mara Rossi, Michela Dal Cin, Michela Dal Cin, Stefano Picotti, Davide Gei, Vladislav S. Isaev, Andrey V. Pogorelov, Eugene I. Gorshkov, Dmitrii O. Sergeev, Pavel I. Kotov, Massimo Giorgi, Mario L. Rainone   +11 more
doaj   +1 more source