Results 51 to 60 of about 247,498 (307)

A comparison of runoff- and spray-drift-related pesticide contamination in agricultural surface waters : exposure, effects and mitigation [PDF]

, 2004
Includes bibliographical references.Runoff and spray-drift-related pesticide input are important sources of non pointsource pesticide pollution in surface waters but few studies have directly compared these routes in a risk assessment scenario ...
Dabrowski, James Michael
core  

REE fractionation during granite weathering and removal by waters and suspended loads: Sr and Nd isotopic evidence [PDF]

, 2001
Very few studies deal with REE (rare earth element) mobility within the system soil–soil solution–streamwater. In this article, we try to characterize the fractionation and the migration of the REE in a granite-derived soil system located in a small ...
Dominique Aubert, Aubert, Dominique, Anne Probst, Stille, Peter, Probst, Anne, Peter Stille   +5 more
core   +1 more source

Temperature and nutrients control the presence and distribution of long-chain diols in Swiss lakes

Frontiers in Earth Science
Long-chain diols are biomarkers commonly used in the marine realm to reconstruct several environmental parameters such as sea surface temperature and salinity.
Julie Lattaud, Julie Lattaud, Céline Martin, Ronald Lloren, Beata Zborovsky, Nathalie Dubois   +5 more
doaj   +1 more source

Temperature modulates stress response in mainstream anammox reactors

Communications Biology, 2021
Niederdorfer et al. show that different anaerobic ammonium oxidizing (anammox) bacterial species and other key biofilm taxa vary in their transcriptional responses as a function of temperature and dissolved oxygen disturbances in an engineered ecosystem.
Robert Niederdorfer, Damian Hausherr, Alejandro Palomo, Jing Wei, Paul Magyar, Barth F. Smets, Adriano Joss, Helmut Bürgmann   +7 more
doaj   +1 more source

Modulation of Homer1 EVH1 domain internal dynamics by putative autism‐associated mutations

FEBS Letters, EarlyView.
The putative autism‐associated M65I and S97L variants of the EVH1 domain of the postsynaptic scaffold protein Homer1 do not exhibit substantial changes in their overall structure or partner binding. Both of them, but especially the M65I variant, show altered internal dynamics relative to the wild‐type domain on the μs‐ms timescale, indicated by the ...
Fanni Farkas, Brigitta Maruzs, Zsófia E. Kálmán, Tomas Klumpler, Gyula Batta, Bálint Péterfia, Zoltán Gáspári   +6 more
wiley   +1 more source

Remote Sensing of Sun-Induced Fluorescence in a Deep Lake: Disentangling Quenching Mechanisms Improves Relationship With Chlorophyll-a Concentration Estimates

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Sun-induced fluorescence (SIF) from phytoplankton has historically been used as a proxy for chlorophyll-a (chl-a) concentration estimates in water bodies using optical earth observation data.
Remika S. Gupana, Daniel Odermatt, Abolfazl Irani Rahaghi, Camille Minaudo, Mortimer Werther, Claudia Giardino, Alexander Damm   +6 more
doaj   +1 more source

An unexpected alternative viologen electron mediator site in tungsten‐containing formate dehydrogenase

FEBS Letters, EarlyView.
An unexpected alternative interaction site for ethyl viologen was identified in formate dehydrogenase 1 from Methylorubrum extorquens. Combined mutagenesis, kinetic analysis, and docking revealed that aromatic residues near an iron–sulfur cluster enable flavin mononucleotide‐independent electron transfer, offering a framework for engineering improved ...
Eleni G. Poloniataki, Yong Hwan Kim
wiley   +1 more source

Machine learning reveals that sodium concentration and temperature influence alkenone occurrence in Swiss and worldwide freshwater lakes

Frontiers in Earth Science
Lacustrine alkenones are increasingly reported in freshwater lakes worldwide, which makes them a very promising proxy to reconstruct past continental temperatures.
Céline Martin, Nora Richter, Ronald Lloren, Linda Amaral-Zettler, Linda Amaral-Zettler, Nathalie Dubois   +5 more
doaj   +1 more source

Cell geometry and membrane protein crowding constrain Escherichia coli growth rate, overflow metabolism, respiration, and maintenance energy

FEBS Letters, EarlyView.
The physical dimensions and shape of bacterial cells define the surface area available to acquire nutrients and the volume available for synthesizing proteins and DNA. Here, we use computational systems biology to decode the importance of cell geometry as a major determinant of prokaryotic phenotype, including growth rate and metabolic efficiency. This
Ross P. Carlson, Tomáš Gedeon, Mauricio Garcia Benitez, Campbell Putnam, William R. Harcombe, Radhakrishnan Mahadevan, Ashley E. Beck   +6 more
wiley   +1 more source

Chemical trends at lakes and streams in the UK Acid Waters Monitoring Network, 1988-2000: evidence for recent recovery at a national scale [PDF]

, 2001
A detailed trend analysis of 12 years of data (1988-2000) for 22 surface waters in acid-sensitive regions of the United Kingdom, in which individual site data have been combined to identify national-scale trends, has shown strong common patterns of ...
Monteith, D. T., Evans, C. D., Monteith, DT, Evans, CD   +3 more
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