Results 111 to 120 of about 97,689 (295)

Stable Isotope Analysis as a Tool to Prevent Illicit Wildlife Trade of Songbirds in Brazil

Animal Conservation, EarlyView.
Feather isotopes provide clear differences between wild and captive songbirds in Brazil. Combining multiple isotopes improved classification accuracy and revealed individuals falsely declared as captive‐bred. These results demonstrate the potential of isotope analysis to detect wildlife laundering in the bird trade.
Luiza Brasileiro, Fábio J. V. Costa, Paulo R. R. Ramos, Vladimir E. Costa, Gabriela B. Nardoto   +4 more
wiley   +1 more source

Strict Aerobic Lifestyle and Anaerobic Survival of Bacteria: Inseparable Twins?

Molecular Microbiology, EarlyView.
ABSTRACT For many decades the existence of strict aerobic bacteria was part of every textbook. However, considering habitats like soils or surfaces, many of these microorganisms are exposed to drastic changes in oxygen tension. A simple rain shower can change oxygen diffusion rates by a factor of 10.000.
Meina Neumann‐Schaal, José Manuel Borrero‐de Acuña, Dieter Jahn   +2 more
wiley   +1 more source

Ammonia in Fly Ashes from Flue Gas Denitrification Process and its Impact on the Properties of Cement Composites

Buildings, 2019
The paper presents the results of research on the properties of fly ashes from the process of flue gas denitrification by selective non-catalytic reduction (SNCR), consisting of dosing urea into the coal combustion chamber.
Agnieszka Michalik, Joanna Babińska, Filip Chyliński, Artur Piekarczuk   +3 more
doaj   +1 more source

Factors affecting nitrate distribution in shallow groundwater under a beef farm in South Eastern Ireland [PDF]

, 2009
peer-reviewedGroundwater contamination was characterised using a methodology which combines shallow groundwater geochemistry data from 17 piezometers over a 2 yr period in a statistical framework and hydrogeological techniques.
Fenton, Owen, Healy, Mark G., Khalil, Mohammed I., Kirwan, Laura, Richards, Karl G.   +4 more
core   +1 more source

The ComEA/ComEC Operon is Critical for Nitrosative Stress Tolerance by an Oral Commensal

Molecular Oral Microbiology, EarlyView.
ABSTRACT Oral commensal streptococci play a large role in mediating microbial homeostasis. Our prior work has demonstrated that hydrogen peroxide (H2O2) produced by oral commensal streptococci can react with salivary nitrite (NO2) and generate peroxynitrite (ONOO−), a potent antimicrobial.
Sara E. Edmonds, Hernan Grenett, Priscilla Grenett, Jessica A. Scoffield   +3 more
wiley   +1 more source

Carbon availability mediates differences in rhizosphere denitrification potential between intercropped plants

Frontiers in Sustainable Food Systems
Denitrification is an important loss pathway for nitrogen (N) in agricultural systems; however, it is at times unpredictable. Some of the uncertainty surrounding denitrification rates is due to soil heterogeneity and spatial variability, especially with ...
Andrew J. Curtright, Andrew J. Curtright, Lisa K. Tiemann   +2 more
doaj   +1 more source

Seasonal variation in denitrification and dissimilatory nitrate reduction to ammonia process rates and corresponding key functional genes along an estuarine nitrate gradient

Frontiers in Microbiology, 2015
This research investigated spatial-temporal variation in benthic bacterial community structure, rates of denitrification and dissimilatory nitrate reduction to ammonium (DNRA) processes and abundances of corresponding genes and transcripts at three sites
Cindy J Smith, Cindy J Smith, Liang F Dong, John eWilson, Andrew eStott, Andrew Mark Osborn, Andrew Mark Osborn, Andrew Mark Osborn, David B Nedwell   +8 more
doaj   +1 more source

Bioturbating bivalves show potential to bioremediate degraded soft sediments by restoring ecosystem function

Restoration Ecology, EarlyView.
Abstract Introduction Natural recovery of disturbed marine ecosystems can take years, mainly because long‐lived, functionally important species are lost. To regain ecosystem services, the focus of estuarine restoration is shifting from biodiversity metrics to functional restoration.
Natalie Prinz, Joanne I. Ellis, Timothy Thomson, Rebecca V. Gladstone‐Gallagher, Candida Savage, Conrad A. Pilditch   +5 more
wiley   +1 more source

Hydrocarbon influence on denitrification in bioturbated Mediterranean coastal sediments [PDF]

, 1997
An in situ experiment has been carried out inbioturbated Mediterranean coastal marine sediments (Gulfof Fos) in order to study the influence of hydrocarbons ondenitrification after 1, 4 and 6 months. In theabsence of hydrocarbons in the control sediments,
Bertrand, Jean-Claude, Bonin, Patricia, Gilbert, Franck, Le Dréau, Yveline, Mille, Gilbert, Stora, Georges   +5 more
core   +4 more sources

Varying effects of stream restoration on riparian soil carbon persistence and methane emissions in the southern Rocky Mountains, United States

Restoration Ecology, EarlyView.
Abstract Introduction Channel incision can disconnect streams from their floodplains, potentially depleting carbon (C) in riparian soils by stimulating microbial decomposition. Stream restoration may offer an opportunity to replenish soil C pools by saturating riparian soils with water and slowing microbial activity.
Alexander H. Krichels, Alina Vulcan, Katelyn P. Driscoll   +2 more
wiley   +1 more source