Now showing items 1-10 of 239
Sampling, separation, and quantification of N‐acyl homoserine lactones from marine intertidal sediments
- Limnology and Oceanography: Methods
N‐acyl homoserine lactones (AHLs) are molecules produced by many Gram‐negative bacteria as mediators of cell‐cell signaling in a mechanism known as quorum sensing (QS). QS is widespread in marine bacteria regulating diverse ...
Disentangling the Impact of Catchment Heterogeneity on Nitrate Export Dynamics From Event to Long‐Term Time Scales
- Water Resources Research
Defining effective measures to reduce nitrate pollution in heterogeneous mesoscale catchments remains challenging when based on concentration measurements at the outlet only. One reason for this is our limited understanding ...
Detectability of Artificial Ocean Alkalinization and Stratospheric Aerosol Injection in MPI‐ESM
- Earth's Future
To monitor the success of carbon dioxide removal (CDR) or solar radiation management (SRM) that offset anthropogenic climate change, the forced response to any external forcing is required to be detectable against internal ...
Storm Event–Driven Occurrence and Transport of Dissolved and Sorbed Organic Micropollutants and Associated Effects in the Ammer River, Southwestern Germany
- Environmental Toxicology and Chemistry
Storm events lead to agricultural and urban runoff, to mobilization of contaminated particulate matter, and to input from combined sewer overflows into rivers. We conducted time‐resolved sampling during a storm event at ...
The copper(II)‐binding tripeptide GHK, a valuable crystallization and phasing tag for macromolecular crystallography
- Acta Crystallographica Section D
The growth of diffraction‐quality crystals and experimental phasing remain two of the main bottlenecks in protein crystallography. Here, the high‐affinity copper(II)‐binding tripeptide GHK was fused to the N‐terminus of a ...
Cation distribution in Cu2ZnSnSe4, Cu2FeSnS4 and Cu2ZnSiSe4 by multiple‐edge anomalous diffraction
- Acta Crystallographica Section B
Multiple‐Edge Anomalous Diffraction (MEAD) has been applied to various quaternary sulfosalts belonging to the adamantine compound family in order to validate the distribution of copper, zinc and iron cations in the structure. ...
Untersuchungen zur Gaschemie und Anwendbarkeit isotopischer Geothermometrie an hydrothermalen Systemen des mittelatlantischen Rückens
(Univ. Hamburg, 2009)
In der vorliegenden Arbeit wurde untersucht, welche Parameter die Anwendbarkeit der Geothermometer für Wasserstoff, im System Wasserstoff/ Methan/ Wasser, und Kohlenstoff, im System Methan/ Kohlendioxid, bestimmen. Dazu ...
Investigating the release of coprecipitated uranium from iron oxides
- Journal of radioanalytical and nuclear chemistry
The removal of uranium (VI) from zerovalent iron permeable reactive barriers and wetlands can be explained by its association with iron oxides. The long term stability of immobilized U is yet to be addressed. The present ...
The time‐resolved hard X‐ray diffraction endstation KMC‐3 XPP at BESSY II
- Journal of Synchrotron Radiation
The time‐resolved hard X‐ray diffraction endstation KMC‐3 XPP for optical pump/X‐ray probe experiments at the electron storage ring BESSY II is dedicated to investigating the structural response of thin film samples and ...