Zobrazeno 1 - 10
of 19
pro vyhledávání: '"Alexandre La Fontaine"'
Autor:
Sandra Piazolo, Alexandre La Fontaine, Patrick Trimby, Simon Harley, Limei Yang, Richard Armstrong, Julie M. Cairney
Publikováno v:
Nature Communications, Vol 7, Iss 1, Pp 1-7 (2016)
Pb/U ratios and trace element distributions within zircon grains are used to determine a rock's age and geological processes, but the degree of element immobility and diffusion is uncertain. Here, the authors use atom probe tomography to reveal sub-m
Externí odkaz:
https://doaj.org/article/5e340ad29a6b42248d0bbf87522816fc
Autor:
Abdessattar Khlaifia, Isabel Laplante, Alexander Jordan, E. Honore, Jean-Claude Lacaille, Alexandre La Fontaine, Julien Artinian, Anne-Sophie Racine
Publikováno v:
Journal of Neuroscience
Journal of Neuroscience, Society for Neuroscience, 2019, 39 (43), pp.8439-8456. ⟨10.1523/JNEUROSCI.0728-19.2019⟩
Journal of Neuroscience, Society for Neuroscience, 2019, 39 (43), pp.8439-8456. ⟨10.1523/JNEUROSCI.0728-19.2019⟩
Translational control of long-term synaptic plasticity via Mechanistic Target Of Rapamycin Complex 1 (mTORC1) is crucial for hippocampal learning and memory. The role of mTORC1 is well characterized in excitatory principal cells but remains largely u
Autor:
Melinda Barabas, Martine Montigny, Jean-Claude Tardif, Samer Mansour, Gladys Bruyninx, Thao Huynh, Michel Nguyen, Alexandre La Fontaine
Publikováno v:
Circulation. 142
Introduction: It remains unclear whether cardiac rehabilitation (CR) can enhance adherence to cardiovascular (CV) medications. We aim to determine the impact of CR on 6-month adherence to CV pharmacotherapy. Methods: We conducted a prospective observ
Publikováno v:
JOM. 70:1744-1751
Atom probe tomography has developed into a technique that can provide atomic-scale three-dimensional information pertaining to corrosion products, with excellent chemical resolution. Like for most characterization techniques, use of atom probe tomogr
Autor:
Luke Daly, Daniel Schwander, Bruce F. Schaefer, Denis Fougerouse, Alexandre La Fontaine, Julie M. Cairney, Phil A. Bland, Steven M. Reddy, David W. Saxey, Simon P. Ringer, Lucy V. Forman, Svetlana G. Tessalina, William D.A. Rickard
Publikováno v:
Geostandards and Geoanalytical Research. 42:279-299
Atom probe microscopy (APM) is a relatively new in situ tool for measuring isotope fractions from nanoscale volumes (< 0.01 μm3). We calculate the theoretical detectable difference of an isotope ratio measurement result from APM using counting stati
Autor:
Julie M. Cairney, Thuan Dinh Nguyen, Alexandre La Fontaine, Jianqiang Zhang, Limei Yang, David J. Young
Publikováno v:
Corrosion Science. 132:125-135
Model alloys Fe-20Cr and Fe-20Cr-0.5Si (wt.%) were exposed to Ar-20CO2 and Ar-20CO2-20H2O gas mixtures at 650 and 818 °C, forming Cr2O3 scales. Impurities segregated to chromia grain boundaries: carbon at sub-monolayer level, iron as spinel in narro
Publikováno v:
Materials at High Temperatures. 35:22-29
Model alloys Fe–20Cr–0.5Si and Fe–20Cr–2Mn (wt-%) were exposed to Ar–20CO2 and Ar–20CO2–20H2O at either 818 or 650°C. In dry gas, protective scales on Fe–20Cr–0.5Si consisted of an outer Cr2O3 layer and an inner SiO2 layer. In wet
Autor:
Alexandre La Fontaine, Thomas Maschmeyer, Julie M. Cairney, Anthony F. Masters, Baptiste Gault, Katja Eder, Anna V. Ceguerra, Peter Felfer
Publikováno v:
Langmuir. 33:9573-9581
Atom probe tomography was used to analyze self-assembled monolayers of thiophene on different surfaces, including tungsten, platinum, and aluminum, where the tungsten was examined in both pristine and oxidized forms. A glovebag with controlled atmosp
Publikováno v:
Microscopy and Microanalysis. 23:404-413
The application of atom probe tomography to the study of minerals is a rapidly growing area. Picosecond-pulsed, ultraviolet laser (UV-355 nm) assisted atom probe tomography has been used to analyze trace element mobility within dislocations and low-a
Publikováno v:
Scripta Materialia. 99:1-4
Atom probe microscopy has been used to study the inhomogeneous nature of chromium oxide spinels in intergranular corrosion of a 253 MA austenitic stainless steel after thermal cycling up to 970 °C in air. The results indicate that the non-continuous