Results 51 to 60 of about 16,088,189 (206)

Satellite Survey of Inner Seas: Oil Pollution in the Black and Caspian Seas

open access: yesRemote Sensing, 2016
The paper discusses our studies of oil pollution in the Black and Caspian Seas. The research was based on a multi-sensor approach on satellite survey data. A combined analysis of oil film signatures in satellite synthetic aperture radar (SAR) and optical
Marina Mityagina, Olga Lavrova
doaj   +1 more source

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

open access: yesFEBS 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

A Synergy for Black Sea Regional Cooperation: Guidelines for an EU Initiative. CEPS Policy Briefs No. 105, 4 June 2006 [PDF]

open access: yes, 2006
This study advocates that the EU support a comprehensive, multi-stakeholder initiative to achieve synergy from regional cooperation in the wider Black Sea area.
Tassinari, Fabrizio
core  

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

open access: yesFEBS 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   +6 more
wiley   +1 more source

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

open access: yesFEBS 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   +3 more
wiley   +1 more source

Nitrogen Problem for the Black Sea Ecosystem

open access: yes, 2013
The aim of the report presented was development of a comprehensive scheme of balance and biogeochemical N cycling for the Black Sea: discussion of exchange of N, its main sources/sinks and the processes involved: identify weak under-studied points and ...
Medinets, Sergiy V.
core   +1 more source

Current Perspectives in Transnational Black Studies

open access: yes, 2016
This article presents a dialogue between Sabine Broeck and P. Khalil Saucier about Black social death and white empathy in contemporary Europe. It is written as a starting point to speak about black movement, European borders, and social death in the ...
Broeck, Sabine, Saucier, P. Khalil
core   +3 more sources

Leucine‐rich glioma inactivated 1 (LGI1) is a ganglioside‐binding protein

open access: yesFEBS Letters, EarlyView.
Neuronal hyperexcitability associated with a decrease/absence of the extracellular protein LGI1 has been suggested to be primarily due to the downregulation of Kv1 channel expression. The molecular mechanisms underlying this decrease have not yet been elucidated.
Kévin Debreux   +7 more
wiley   +1 more source

Hellenistic Period Watchtowers and Hillside Settlements Identified in “Vezirköprü” Surveys

open access: yesПоволжская археология
Vezirköprü, one of the largest districts of Samsun (Amisos), an important port city of the Black Sea, has been the scene of continuous settlement from the Eneolithic Period to the present day thanks to its fertile soils, rivers and its location on an ...
Temür Akın
doaj   +1 more source

THE LEADERSHIP ROLE IN THE REGION - REGIONALISM - SECURITY EQUATION IN THE BLACK SEA

open access: yesBulletin of "Carol I" National Defense University, 2021
This study presents a few considerations about the leadership, the geopolitical and strategic importance of the Black Sea region, and potential threats or risks against security, stability, prosperity, and cooperation.
Mihai PANAIT
doaj  

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