Zobrazeno 1 - 10
of 422
pro vyhledávání: '"Gustavo A. Garcia"'
Autor:
Helgi Rafn Hrodmarsson, Gustavo A. Garcia, Lyna Bourehil, Laurent Nahon, Bérenger Gans, Séverine Boyé-Péronne, Jean-Claude Guillemin, Jean-Christophe Loison
Publikováno v:
Communications Chemistry, Vol 7, Iss 1, Pp 1-10 (2024)
Abstract The resonance-stabilization of the propargyl radical (C3H3) makes it among the most important reactive intermediates in extreme environments and grants it a long enough lifetime to recombine in both terrestrial combustion media and cold mole
Externí odkaz:
https://doaj.org/article/f737eacd97dd4bfcb555e42a04d00637
Autor:
Sérgio R. Domingos, Denis S. Tikhonov, Amanda L. Steber, Patrick Eschenbach, Sebastien Gruet, Helgi R. Hrodmarsson, Kévin Martin, Gustavo A. Garcia, Laurent Nahon, Johannes Neugebauer, Narcis Avarvari, Melanie Schnell
Publikováno v:
Nature Communications, Vol 15, Iss 1, Pp 1-8 (2024)
Abstract Polycyclic aromatic hydrocarbons (PAHs) are widely established as ubiquitous in the interstellar medium (ISM), but considering their prevalence in harsh vacuum environments, the role of ionisation in the formation of PAH clusters is poorly u
Externí odkaz:
https://doaj.org/article/7ab198d2d8e2496495e9f0938df36bf4
Autor:
Etienne Rouquet, Madhusree Roy Chowdhury, Gustavo A. Garcia, Laurent Nahon, Jennifer Dupont, Valéria Lepère, Katia Le Barbu-Debus, Anne Zehnacker
Publikováno v:
Nature Communications, Vol 14, Iss 1, Pp 1-8 (2023)
Abstract An achiral chromophore can acquire a chiral spectroscopic signature when interacting with a chiral environment. This so-called induced chirality is documented in electronic or vibrational circular dichroism, which arises from the coupling be
Externí odkaz:
https://doaj.org/article/ffaa1b09036c427392b30385f261b1a7
Autor:
Madhusree Roy Chowdhury, Gustavo A. Garcia, Helgi R. Hrodmarsson, Jean-Christophe Loison, Laurent Nahon
Publikováno v:
The Astrophysical Journal, Vol 963, Iss 1, p 29 (2024)
We investigate the vacuum ultraviolet (VUV) photodynamics of gas phase 1- and 2-cyanonaphthalene and cyanobenzene, recently detected in the Taurus molecular cloud, by combining synchrotron radiation and a double imaging electron/ion coincidence setup
Externí odkaz:
https://doaj.org/article/cdab9c297d514625ac46dc5b315a729e
Publikováno v:
Physchem, Vol 2, Iss 3, Pp 261-273 (2022)
This study presents the method of fixed-photon-energy double-imaging photoelectron photoion coincidence (i2PEPICO) utilized to investigate the dissociation of state-selected ions. Vacuum ultraviolet (VUV) synchrotron radiation at one fixed photon ene
Externí odkaz:
https://doaj.org/article/bec193f168314a4dad54e031bdd608dd
Autor:
Rim Hadidi, Dušan K. Božanić,, Hassan Ganjitabar, Gustavo A. Garcia, Ivan Powis, Laurent Nahon
Publikováno v:
Communications Chemistry, Vol 4, Iss 1, Pp 1-14 (2021)
Proline plays an important role in determining the structures of proteins and peptides, but the conformer landscape of proline is still not fully mapped. Here, the authors show the conformer-specific cation fragmentation and photoelectron circular di
Externí odkaz:
https://doaj.org/article/ebb5d0dc630a40d4a7eb11aaa0d91c96
Large language models (LLMs) and vision-language models (VLMs) have been increasingly used in robotics for high-level cognition, but their use for low-level cognition, such as interpreting sensor information, remains underexplored. In robotic graspin
Externí odkaz:
http://arxiv.org/abs/2404.07717
Autor:
Helgi R. Hrodmarsson, Roland Thissen, Danielle Dowek, Gustavo A. Garcia, Laurent Nahon, Thomas R. Govers
Publikováno v:
Frontiers in Chemistry, Vol 7 (2019)
Photoelectron/photoion imaging spectrometry employing dispersed VUV radiation from the SOLEIL synchrotron has been used to study the predissociation of N2+ states located up to 1.3 eV above the ion's first dissociation limit. Branching ratios for uni
Externí odkaz:
https://doaj.org/article/25c80ed23e434019a59e8d48bdea65a4
Electron asymmetries in the photoionization of chiral molecules: possible astrophysical implications
Publikováno v:
Advances in Physics: X, Vol 3, Iss 1 (2018)
Photoelectron circular dichroism (PECD) is an intense orbital-specific chiroptical effect observed as asymmetries in the angular distribution of photoelectrons produced by photoionization of randomly oriented pure enantiomers with circularly polarize
Externí odkaz:
https://doaj.org/article/0a6b15e0b2de4fd68324f4aac7d83620
Publikováno v:
International Journal of the Commons, Vol 8, Iss 2, Pp 304-336 (2014)
While Common Pool Resource (CPR) theory has been widely applied to forestry, there are few examples of using the theory to study large-scale governance. In this paper we test the applicability of CPR theory to understanding forest governance and outc
Externí odkaz:
https://doaj.org/article/2aecd66330d54455888a6820f1e6aad0