Publications associées à Stable isotope ratio

Surviving anoxia in marine sediments: The metabolic response of ubiquitous benthic foraminifera (Ammonia tepida)

Anders Meibom, Stéphane Laurent Escrig, Charlotte Madeleine Nicole Lekieffre, Emmanuelle Geslin

High input of organic carbon and/or slowly renewing bottom waters frequently create periods with low dissolved oxygen concentrations on continental shelves and in coastal areas; such events can have strong impacts on benthic ecosystems. Among the meiofauna ...

Public Library of Science2017

Charlotte Madeleine Nicole Lekieffre

Foraminifera are ubiquitous eukaryotic protists inhabiting all types of marine environments. The chemical and isotopic compositions of their carbonate tests are commonly used as proxies for paleo-environmental conditions. However, while foraminifera repres ...

EPFL2017

Titanium carbide-carbon porous nanocomposite materials for radioactive ion beam production

João Pedro Fernandes Pinto Ramos

The Isotope Separator OnLine (ISOL) technique is used at the ISOLDE - Isotope Separator OnLine DEvice facility at CERN, to produce radioactive ion beams for physics research. At CERN protons are accelerated to 1.4 GeV and made to collide with one of two ta ...

EPFL2017

Streamwater pCO2in an Alpine Headwater Catchment

Tom Ian Battin, Amber Joy Ulseth, Asa Lovisa Viktoria Horgby, Marta Boix Canadell

Boreal and alpine streams are highly sensitive to climate change. Previous studies have shown the relevance of streams for carbon cycling in boreal landscapes. Less work has been done on alpine streams, and we do not understand the contributions from these ...

2017

Improved detection sensitivity for heavy trace elements using a miniature laser ablation ionisation mass spectrometer

Herbert Shea, Reto Wiesendanger, Peter Wurz

Laser ablation ionisation time-of-flight mass spectrometry is a versatile technique to obtain highly sensitive measurement of the elements and isotope composition of solid materials. Because of the measurements of nearly all elements in the sample, large i ...

2017

Kleptoplasty in a shallow water benthic foraminifer, Haynesina germanica

Anders Meibom, Charlotte Madeleine Nicole Lekieffre, Emmanuelle Geslin

Some benthic foraminifera have the ability to incorporate functional chloroplasts from diatoms (kleptoplasty). Our objective was to investigate kleptoplast cellular organisation, functionality (O2 flux, C and N incorporation), pigment composition and photo ...

2016

Environmental drivers of carbon and nitrogen isotopic signatures in peatland vascular plants along an altitude gradient

Alexandre Buttler, Konstantin Svetlozarov Gavazov, Luca Bragazza

Peatlands are important sinks of atmospheric carbon (C) that, in response to climate warming, are undergoing dynamic vegetation succession. Here we examined the hypothesis that the uptake of nutrients by different plant growth forms (PGFs) is one key mecha ...

Springer2016

Transport and mixing in Lac Léman

David Andrew Barry, Ulrich Lemmin, Andrea Cimatoribus

Lake Geneva (Lac Léman) is the largest freshwater body in Western Europe. It is a deep peri-alpine lake whose importance stems from being not only an essential freshwater source in the region, but also a major tourist destination, a fishery and a waterway. ...

2016

A benthic foraminifera species respond to anoxia with a strong metabolic shift suggesting a state of dormancy

Anders Meibom, Charlotte Madeleine Nicole Lekieffre, Emmanuelle Geslin

Low-oxygenation events are more and more frequent and strong on continental shelves and in coastal areas where renewal of bottom waters is slow. Among the meiofauna living in such environments, foraminifera are among the most tolerant to the lack of oxygen ...

2016

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Stable isotope ratio

Surviving anoxia in marine sediments: The metabolic response of ubiquitous benthic foraminifera (Ammonia tepida)

Correlated TEM-NanoSIMS investigation of foraminiferal metabolism

Titanium carbide-carbon porous nanocomposite materials for radioactive ion beam production

Streamwater pCO2in an Alpine Headwater Catchment

Improved detection sensitivity for heavy trace elements using a miniature laser ablation ionisation mass spectrometer

Kleptoplasty in a shallow water benthic foraminifer, Haynesina germanica

Formation of N-nitrosodimethylamine during water disinfection with chloramine

Environmental drivers of carbon and nitrogen isotopic signatures in peatland vascular plants along an altitude gradient

Transport and mixing in Lac Léman

A benthic foraminifera species respond to anoxia with a strong metabolic shift suggesting a state of dormancy

Graph Chatbot

Chattez avec Graph Search

Titanium carbide-carbon porous nanocomposite materials for radioactive ion beam production

Improved detection sensitivity for heavy trace elements using a miniature laser ablation ionisation mass spectrometer

Streamwater pCO2in an Alpine Headwater Catchment

Kleptoplasty in a shallow water benthic foraminifer, Haynesina germanica

Surviving anoxia in marine sediments: The metabolic response of ubiquitous benthic foraminifera (Ammonia tepida)

Environmental drivers of carbon and nitrogen isotopic signatures in peatland vascular plants along an altitude gradient

A benthic foraminifera species respond to anoxia with a strong metabolic shift suggesting a state of dormancy

Correlated TEM-NanoSIMS investigation of foraminiferal metabolism

Formation of N-nitrosodimethylamine during water disinfection with chloramine

Transport and mixing in Lac Léman