Results 41 to 50 of about 3,287,043 (305)

Southern hemisphere atmospheric circulation: Impacts on Antarctic climate and reconstructions from Antarctic ice core data [PDF]

, 2010
The official pulished version can be accessed from the DOI below - Copyright @ 2010 Springer VerlagThe atmospheric circulation patterns in the Southern Hemisphere have had a significant impact on the climate of the Antarctic and there is much evidence ...
McGregor, G R, Russell, A, McGregor, G.R., Russell, A.   +3 more
core   +1 more source

Implementation of counted layers for coherent ice core chronology [PDF]

Climate of the Past, 2015
A recent coherent chronology has been built for four Antarctic ice cores and the NorthGRIP (NGRIP) Greenland ice core (Antarctic Ice Core Chronology 2012, AICC2012) using a Bayesian approach for ice core dating (Datice).
B. Lemieux-Dudon, L. Bazin, A. Landais, H. Toyé Mahamadou Kele, M. Guillevic, P. Kindler, F. Parrenin, P. Martinerie   +7 more
doaj   +1 more source

Ice-algal chlorophyll a and physical properties of multi-year and first-year sea ice of core CASIMBO-CORE-1_12

, 2015
Ice-algal chlorophyll a and physical properties of multi-year and first-year sea ice of core CASIMBO-CORE ...
Benjamin Allen Lange (6962450), Michel, Christine, Meisterhans, Guillaume, Ido Hatam (209666), Justin Beckers (6962453), Lange, Benjamin Allen, Haas, Christian, Niemi, Andrea, Hauke Flores (6979595), Hatam, Ido, Casey, J Alec, Andrea Niemi (8004593), Beckers, Justin, Christine Michel (8000204), Flores, Hauke, J Alec Casey (6962456), Christian Haas (6959543), Guillaume Meisterhans (728324)   +17 more
core   +1 more source

Reconstruction of past atmospheric CO2 concentrations by ice core analyses [PDF]

, 2000
International Symposium on Physics of Ice Core Records.
Stauffer, Bernhard, Jürg, Tschumi, Tschumi, J.   +2 more
core   +1 more source

On the occurrence of annual layers in Dome Fuji ice core early Holocene ice [PDF]

Climate of the Past, 2015
Whereas ice cores from high-accumulation sites in coastal Antarctica clearly demonstrate annual layering, it is debated whether a seasonal signal is also preserved in ice cores from lower-accumulation sites further inland and particularly on the East ...
A. Svensson, S. Fujita, M. Bigler, M. Braun, R. Dallmayr, V. Gkinis, K. Goto-Azuma, M. Hirabayashi, K. Kawamura, S. Kipfstuhl, H. A. Kjær, T. Popp, M. Simonsen, J. P. Steffensen, P. Vallelonga, B. M. Vinther   +15 more
doaj   +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

δ18O of O2 in a Tibetan Ice Core Constrains Its Chronology to the Holocene

Geophysical Research Letters, 2022
Dating of the Tibetan ice cores is often challenging with great uncertainties. The significant age difference between the Guliya ice core (∼760 ka [thousand years]) and other Tibetan ice cores (Holocene origin) necessitates new approaches to resolve the ...
Huanting Hu, Qiuyu Li, Wangbin Zhang, Shuang‐ye Wu, Jing Song, Ke Liu, Xiang Zou, Hongxi Pang, Maojun Yan, Shugui Hou   +9 more
doaj   +1 more source

L‐aspartate oxidase provides new insights into fumarate reduction in anaerobic darkness in Synechocystis sp. PCC6803

FEBS Letters, EarlyView.
Synechocystis strains deficient in succinate dehydrogenase (SDH) secrete more succinate than the WT under dark anaerobic conditions, supporting that SDH then primarily acts as SDH, not as a fumarate reductase. L‐aspartate oxidase (Laspo) from Synechocystis is functional under anaerobic conditions, reducing fumarate to succinate.
Kateryna Kukil, Jeffrey A. Hawkes, Cecilia Blikstad, Pia Lindberg   +3 more
wiley   +1 more source

A full Stokes ice-flow model to assist the interpretation of millennial-scale ice cores at the high-Alpine drilling site Colle Gnifetti, Swiss/Italian Alps

Journal of Glaciology, 2020
The high-Alpine ice-core drilling site Colle Gnifetti (CG), Monte Rosa, Swiss/Italian Alps, provides climate records over the last millennium and beyond.
Carlo Licciulli, Pascal Bohleber, Josef Lier, Olivier Gagliardini, Martin Hoelzle, Olaf Eisen   +5 more
doaj   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source