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Showing 1 to 12 of 142 entries
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Eddy covariance carbonyl sulphide flux measurements with a quantum cascade laser absorption spectrometer.

Atmospheric measurement techniques

Gerdel K, Spielmann FM, Hammerle A, Wohlfahrt G.
PMID: 29093762
Atmos Meas Tech. 2017 Sep 26;10(9):3525-3537. doi: 10.5194/amt-10-3525-2017.

The trace gas carbonyl sulphide (COS) has lately received growing interest in the eddy covariance (EC) community due to its potential to serve as an independent approach for constraining gross primary production and canopy stomatal conductance. Thanks to recent...

Presynaptic mechanisms of neuronal plasticity and their role in epilepsy.

Frontiers in cellular neuroscience

Meier JC, Meier J, Semtner M, Winkelmann A, Wolfart J.
PMID: 24987332
Front Cell Neurosci. 2014 Jun 17;8:164. doi: 10.3389/fncel.2014.00164. eCollection 2014.

Synaptic communication requires constant adjustments of pre- and postsynaptic efficacies. In addition to synaptic long term plasticity, the presynaptic machinery underlies homeostatic regulations which prevent out of range transmitter release. In this minireview we will discuss the relevance of...

Ecosystem-scale biosphere-atmosphere interactions of a hemiboreal mixed forest stand at Järvselja, Estonia.

Forest ecology and management

Noe SM, Kimmel V, Hüve K, Copolovici L, Portillo-Estrada M, Püttsepp U, Jõgiste K, Niinemets U, Hörtnagl L, Wohlfahrt G.
PMID: 24347809
For Ecol Manage. 2011 Jul 15;262(2):71-81. doi: 10.1016/j.foreco.2010.09.013.

During two measurement campaigns, from August to September 2008 and 2009, we quantified the major ecosystem fluxes in a hemiboreal forest ecosystem in Järvselja, Estonia. The main aim of this study was to separate the ecosystem flux components and...

Summertime elemental mercury exchange of temperate grasslands on an ecosystem-scale.

Atmospheric chemistry and physics

Fritsche J, Wohlfahrt G, Ammann C, Zeeman M, Hammerle A, Obrist D, Alewell C.
PMID: 24348525
Atmos Chem Phys. 2008 Dec 22;8(24). doi: 10.5194/acp-8-7709-2008.

In order to estimate the air-surface mercury exchange of grasslands in temperate climate regions, fluxes of gaseous elemental mercury (GEM) were measured at two sites in Switzerland and one in Austria during summer 2006. Two classic micrometeorological methods (aerodynamic...

Biotic, abiotic and management controls on methanol exchange above a temperate mountain grassland.

Journal of geophysical research. Biogeosciences

Hörtnagl L, Bamberger I, Graus M, Ruuskanen TM, Schnitzhofer R, Müller M, Hansel A, Wohlfahrt G.
PMID: 24349901
J Geophys Res Biogeosci. 2011 Sep 01;116. doi: 10.1029/2011jg001641.

Methanol (CH

Deposition Fluxes of Terpenes over Grassland.

Journal of geophysical research. Atmospheres : JGR

Bamberger I, Hörtnagl L, Ruuskanen TM, Schnitzhofer R, Müller M, Graus M, Karl T, Wohlfahrt G, Hansel A.
PMID: 24383048
J Geophys Res Atmos. 2011 Jul 27;116. doi: 10.1029/2010JD015457.

Eddy covariance flux measurements were carried out for two subsequent vegetation periods above a temperate mountain grassland in an alpine valley using a proton-transfer-reaction - mass spectrometer (PTR-MS) and a PTR-time of flight - mass spectrometer (PTR-TOF). In 2008...

Revisiting the choice of the driving temperature for eddy covariance CO.

Agricultural and forest meteorology

Wohlfahrt G, Galvagno M.
PMID: 28439145
Agric For Meteorol. 2017 May 01;237:135-142. doi: 10.1016/j.agrformet.2017.02.012.

So-called CO

Methane and nitrous oxide exchange over a managed hay meadow.

Biogeosciences (Online)

Hörtnagl L, Wohlfahrt G.
PMID: 25821473
Biogeosciences. 2014 Dec 17;11(24):7219-7236. doi: 10.5194/bg-11-7219-2014.

The methane (CH

Magnetic field dependent tunneling in glasses.

Physical review letters

Strehlow P, Wohlfahrt M, Jansen AG, Haueisen R, Weiss G, Enss C, Hunklinger S.
PMID: 11017665
Phys Rev Lett. 2000 Feb 28;84(9):1938-41. doi: 10.1103/PhysRevLett.84.1938.

We report on experiments giving evidence for quantum effects of electromagnetic flux in barium alumosilicate glass. In contrast to expectation, below 100 mK the dielectric response becomes sensitive to magnetic fields. The experimental findings include both lifting of the...

Leaf and ecosystem response to soil water availability in mountain grasslands.

Agricultural and forest meteorology

Brilli F, Hörtnagl L, Hammerle A, Haslwanter A, Hansel A, Loreto F, Wohlfahrt G.
PMID: 24465071
Agric For Meteorol. 2011 Dec 15;151(12):1731-1740. doi: 10.1016/j.agrformet.2011.07.007.

Climate change is expected to affect the Alps by increasing the frequency and intensity of summer drought events with negative impacts on ecosystem water resources. The response of CO

Dimensional Ridge Preservation with a Novel Highly Porous TiO(2) Scaffold: An Experimental Study in Minipigs.

International journal of biomaterials

Tiainen H, Verket A, Haugen HJ, Lyngstadaas SP, Wohlfahrt JC.
PMID: 23091493
Int J Biomater. 2012;2012:851264. doi: 10.1155/2012/851264. Epub 2012 Oct 03.

Despite being considered noncritical size defects, extraction sockets often require the use of bone grafts or bone graft substitutes in order to facilitate a stable implant site with an aesthetically pleasing mucosal architecture and prosthetic reconstruction. In the present...

Eddy covariance measurements of carbon dioxide, latent and sensible energy fluxes above a meadow on a mountain slope.

Boundary-layer meteorology

Hammerle A, Haslwanter A, Schmitt M, Bahn M, Tappeiner U, Cernusca A, Wohlfahrt G.
PMID: 24465032
Boundary Layer Meteorol. 2007 Feb;122(2):397-416. doi: 10.1007/s10546-006-9109-x.

Carbon dioxide, latent and sensible energy fluxes were measured by means of the eddy covariance method above a mountain meadow situated on a steep slope in the Stubai Valley/Austria, based on the hypothesis that, due to the low canopy...

Showing 1 to 12 of 142 entries