Now showing items 1-10 of 36
Electron hole formation in acidic zeolite catalysts
The formation of an electron hole on an AlO4H center of the H-ZSM-5 zeolite has been studied by a hybrid quantum mechanics/shell-model ion-pair potential approach. The Becke-3-Lee-Yang-Parr (B3LYP) and Becke-Half&Half-Le ...
Environmental effects on vibrational proton dynamics in H5O2+: DFT study on crystalline H5O2+ClO4–
The structure as well as IR and inelastic neutron scattering (INS) spectra of H5O2+ in crystalline H5O2+ClO4– were simulated using Car–Parrinello molecular dynamics with the BLYP functional. The potential of the OH+O ...
How did the nutrient concentrations change in northeastern German lowland rivers during the last four millennia?
A paleolimnological study of floodplain sediments
This study focuses on the feasibility of floodplain sediments and fluvial sediments in paleomeanders and ox-bows of two lowland rivers (River Havel, River Spree, Brandenburg State, Germany) as archives for quantitative ...
CYP35: Xenobiotically induced gene expression in the nematode Caenorhabditis elegans
Although over 80 cytochrome P450 (CYP) encoding genes have been identified in the genome of the nematode Caenorhabditis elegans very little is known about their involvement in biotransformation. This paper demonstrates a ...
Dissolved humic substances
ecological driving forces from the individual to the ecosystem level?
1.This review focusses on direct and indirect interactions between dissolved humic substances (HS) and freshwater organisms and presents novel opinions and hypotheses on their ecological significance. Despite their abundance ...
Eutrophication problems and their potential solutions in the artificial shallow lake Altmühlsee (Germany)
Lake Altmühlsee in Middle Franconia, Germany, was constructed as part of a water transportation system and flooded in 1986 by River Altmühl. Supply of nutrient rich water resulted in a hypertrophic state characterized by ...
2015-03-15Berichte und sonstige Texte
Behandlung der Energiewende auf der Basis eines 4-Ebenen-Modells
Der mit der Energiewende eingeleitete Umstieg auf die Verwertung von Energien aus regenerativen Quellen führt zu einem ganzen Bündel von Maßnahmen, die nur noch schwer zu überschauen und somit auch zu koordinieren sind. ...