Results 51 to 60 of about 5,354,706 (300)

Factors influencing the stable carbon isotopic composition of suspended and sinking organic matter in the coastal Antarctic sea ice environment [PDF]

, 2011
A high resolution time-series analysis of stable carbon isotopic signatures in particulate organic carbon (δ13CPOC) and associated biogeochemical parameters in sea ice and surface waters provides an insight into the factors affecting δ13CPOC in the ...
Carson, D. S., Ganeshram, R.S., R. S. Ganeshram, S. F. Henley, A. E. Fallick, Fallick, A.E., J. Dougans, A. Clarke, Ganeshram, R. S.; id_orcid, Annett, A.L., Annett, Amber, Weston, K., Henley, S.F., Annett, A. L., Ganeshram, R. S., Carson, D.S., D. S. Carson, K. Weston, Dougans, J., Fallick, A. E., A. L. Annett, Crosta, X., A. Tait, X. Crosta, Henley, S. F., Tait, A., Clarke, A.   +26 more
core   +2 more sources

The Effects of Ice Floe‐Floe Interactions on Pressure Ridging in Sea Ice

Journal of Advances in Modeling Earth Systems, 2021
The mechanical interactions between ice floes in the polar sea‐ice packs play an important role in the state and predictability of the sea‐ice cover. We use a Lagrangian‐based numerical model to investigate such floe‐floe interactions.
A. Damsgaard, O. Sergienko, A. Adcroft
doaj   +1 more source

Conserved binding mode but diverse interfaces of MreC‐PBP2 interactions

FEBS Letters, EarlyView.
The crystal structure of abMreC reveals a conserved two β‐barrel architecture and provides structural insights into its role within the bacterial elongasome. The abMreC–abPBP2 complex model identifies the molecular basis of MreC‐mediated PBP2 recognition, contributing to the regulation of peptidoglycan synthesis.
Hyunseok Jang, Hyo Been Jin, Chang Min Kim, So Yeon Lee, Hyun Ho Park   +4 more
wiley   +1 more source

Recent changes in the dynamic properties of declining Arctic sea ice: A model study

Geophysical Research Letters, 2012
Results from a numerical model simulation show significant changes in the dynamic properties of Arctic sea ice during 2007–2011 compared to the 1979–2006 mean.
Jinlun Zhang, Ron Lindsay, Axel Schweiger, Ignatius Rigor   +3 more
doaj   +1 more source

Nutrient/TOR signaling controls adipose mitochondrial transcription factor A (TFAM) to regulate organismal growth in Drosophila

FEBS Letters, EarlyView.
Animals must match their growth rate to available nutrients. We show that in Drosophila larvae, the nutrient‐sensing TOR kinase controls growth by regulating levels of TFAM, a key regulator of mitochondrial function, in the adipose tissue. When nutrients are abundant, high TOR activity suppresses TFAM, lowering mitochondrial bioenergetic activity and ...
Shrivani Sriskanthadevan‐Pirahas, Shahoon Khan, Abhishek Sharma, Byoungchun Lee, Savraj S. Grewal   +4 more
wiley   +1 more source

Sea-ice Community Composition Data analysed in: Rebecca Duncan, Janne E. Søreide, Øystein Varpe, Józef Wiktor, Vanessa Pitusi, Elaine Runge, Katherina Petrou, 2023, "Spatio-temporal dynamics in microalgal communities in Arctic land-fast sea ice".

, 2023
Sea-ice Protist Community Composition Data analysed in: Rebecca Duncan, Janne E. Søreide, Øystein Varpe, Józef Wiktor, Vanessa Pitusi, Elaine Runge, Katherina Petrou, 2023, "Spatio-temporal dynamics in microalgal communities in Arctic land-fast sea ice".
Rebecca Duncan (16383606)
core   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

FEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell, Thomas Walther, Egbert Hoiczyk   +2 more
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

FEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge, Vivian Pogenberg, Alexander Baumgart, Bente Siebels, Hartmut Schlüter, Michael Hecht‐Bucher, Aymelt Itzen   +6 more
wiley   +1 more source

Seasonal and spatial variations in sea ice kinematics and their response to storms in the Arctic Transpolar Drift region in 2021–2022

Journal of Glaciology
Sea ice outflow through the Transpolar Drift (TPD) is essential in Arctic sea ice loss. Twenty-four buoys deployed in the Arctic Ocean during the summer of 2021 were used to analyse sea ice kinematics and deformation across the pack ice zone (PIZ) and ...
Minghao Liu, Ruibo Lei, Long Lin, Jennifer K. Hutchings, Ying Chen, Meng Qu, Xuhua Cheng   +6 more
doaj   +1 more source

Application of Radar Image Fusion Method to Near-Field Sea Ice Warning for Autonomous Ships in the Polar Region

Journal of Marine Science and Engineering, 2022
Mastering the real-time dynamics of near-field sea ice is the primary condition to guaranteeing the navigation safety of autonomous ships in the polar region.
Tsung-Hsuan Hsieh, Bo Li, Shengzheng Wang, Wei Liu   +3 more
doaj   +1 more source