Results 51 to 60 of about 259,276 (311)

Controls of carbon dioxide concentrations and fluxes above central London [PDF]

, 2011
Eddy-covariance measurements of carbon dioxide fluxes were taken semi-continuously between October 2006 and May 2008 at 190 m height in central London (UK) to quantify emissions and study their controls.
Helfter, C., Phillips, G.J., Wood, C.R., G. J. Phillips, C. R. Wood, Famulari, D., Barlow, J.F., Phillips, G. J.; id_orcid, Wood, Curtis, Grimmond, C.S.B., C. Helfter, D. Famulari, Wood, C. R., Phillips, G. J., Grimmond, C. S. B., Barlow, J. F., Grimmond, C. S.B., Nemitz, E., C. S. B. Grimmond, E. Nemitz, J. F. Barlow   +20 more
core   +1 more source

Three phosphatase families form a community: The phosphohydrolases that act upon inositol pyrophosphates

FEBS Letters, EarlyView.
Inositol pyrophosphates are energy‐rich signaling molecules that perform critical functions in cells. Three different families of phosphatases hydrolyze the β phosphate of the inositol pyrophosphate molecules: two have narrow specificities and one is promiscuous.
Ronda J. Rolfes
wiley   +1 more source

Mean and Flux Horizontal Variability of Virtual Potential Temperature, Moisture, and Carbon Dioxide: Aircraft Observations and LES Study

, 2008
The effects of the horizontal variability of surface properties on the turbulent fluxes of virtual potential temperature, moisture, and carbon dioxide are investigated by combining aircraft observations with large-eddy simulations (LESs).
Górska, M., Heerwaarden, C.C., van, LeMone, M.A., Vilà-Guerau de Arellano, J.   +3 more
core   +1 more source

Reconstructing enzyme evolution by protein engineering

FEBS Letters, EarlyView.
Natural enzyme evolution can be retraced by protein engineering methods such as directed evolution, rational design, and ancestral sequence reconstruction. These approaches reveal how enzymes emerged from ligand‐binding scaffolds, developed varying substrate preferences, formed oligomeric complexes, adapted to environmental changes, and evolved novel ...
Lukas Drexler, Markus R. Busch, Reinhard Sterner   +2 more
wiley   +1 more source

Summertime elemental mercury exchange of temperate grasslands on an ecosystem-scale [PDF]

, 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.
A. Hammerle, C. Alewell, Ammann, C., Fritsche, J., Ammann, Christof, Obrist, D., Zeeman, M., Hammerle, Albin, Obrist, Daniel, Alewell, Christine, C. Ammann, Fritsche, Johannes, Hammerle, A., D. Obrist, G. Wohlfahrt, Alewell, C., J. Fritsche, Zeeman, Matthias, M. Zeeman, Wohlfahrt, Georg, Wohlfahrt, G.   +20 more
core   +1 more source

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Temporal and Spatial Variability of the CO2 System in a Riverine Influenced Area of the Mediterranean Sea, the Northern Adriatic

Frontiers in Marine Science, 2020
Coastal ecosystems are subject to multiple processes that drive pH change over time. Therefore, efforts to understand the variability in the coastal carbonate system are crucial to assess the marine system vulnerability to acidification.
Lidia Urbini, Gianmarco Ingrosso, Tamara Djakovac, Salvatore Piacentino, Michele Giani   +4 more
doaj   +1 more source

A comparison of different inverse carbon flux estimation approaches for application on a regional domain [PDF]

, 2011
We have implemented six different inverse carbon flux estimation methods in a regional carbon dioxide (CO₂) flux modeling system for the Netherlands.
Tolk, L.F., Meesters, A. G. C. A., Tolk, L. F., L. F. Tolk, Meesters, A.G.C.A., Dolman, A.J., Peters, W., Dolman, A. J., Dolman, A.J.; id_orcid, Meesters, A.G.C.A.; id_orcid, W. Peters, A. J. Dolman, A. G. C. A. Meesters   +12 more
core   +1 more source

EDNRB‐dependent endothelin signaling reduces proliferation and promotes proneural‐to‐mesenchymal transition in gliomas

Molecular Oncology, EarlyView.
Glioma cells mainly express the endothelin receptor EDNRB, while EDNRA is restricted to a perivascular tumor subpopulation. Endothelin signaling reduces glioma cell proliferation while promoting migration and a proneural‐to‐mesenchymal transition associated with poor prognosis. This pathway activates Ca2+, K+, ERK, and STAT3 signalings and is regulated
Donovan Pineau, Leonor Garcia, Hugo Arnold, Antonija Hanžek, Maialen Arrieta, Laurent R Gauthier, Christine Granotier‐Beckers, François D Boussin, Amaury Herbet, Marie Hautière, Valentin Asei‐Ceschino, Clémentin Jacques, Laura Brard, Thomas Harnois, Valérie Coronas, Bruno Constantin, Aurélien Chatelier, Jean Chemin, Serge Urbach, Martial Seveno, Szimonetta Hideg, Chantal Ripoll, Kasandra Aguilar‐Cázarez, Min Zheng, Guo‐Hao Huang, Sheng‐Qing Lv, Lei Zhang, Philippe Rondard, Laurent Prezeau, Jean‐Philippe Pin, Hugues Duffau, Luc Bauchet, Valérie Rigau, Franck Denat, Charles Truillet, Didier Boquet, Jean‐Philippe Hugnot   +36 more
wiley   +1 more source

Comments on Flux and Flux Density

HortScience, 1988
Abstract A recent update supplement of the ASHS Publications Manual (1) states that photosynthetic photon flux density (PPFD) shall now be called photosynthetic photon flux (PPF). This decision appears to be based on a Feature article by Holmes et al.
openaire   +1 more source