Suwimol Wongsakulphasatch, Farid Nouar, Julien Rodriguez, L Anderson Scott, Clément Le Guillouzer, Thomas Devic, Patricia Horcajada, Jean‐Marc Grenèche, Philip L. Llewellyn, Alexandré Vimont, Guillaume Clet, Marco Daturi, Christian Serre,
The scalable and environmentally-friendly synthesis of mixed Fe(III)/M(II) (M = Ni, Co, Mg) polycarboxylate porous MOFs based on the Secondary Building Unit approach is reported. A combination of in situ infrared spectroscopy, (57)Fe Mössbauer spectrometry and adsorption microcalorimetry confirms the direct accessibility of the iron(III) and metal(II) sites under low temperature activation conditions.
Tópico(s): Advanced Photocatalysis Techniques
2015 - Royal Society of Chemistry | Chemical Communications
Julien Rodriguez, Isabelle Beurroies, Marie‐Vanessa Coulet, Pierre Fabry, T. Devic, Christian Serre, Renaud Denoyel, Philip L. Llewellyn,
A thermodynamic study of the structural large-pore (LP) to narrow pore (NP) transition in various Metal Organic Frameworks (MOFs) is presented. First, the pressure induced transition at a constant temperature is investigated using a Tian-Calvet microcalorimeter set-up equipped with a high pressure cell. This device permits simultaneous measurements of the mechanical work and heat associated with the LP → NP transition. It is shown that MIL-53(Al) and MIL-53(Cr) have similar thermodynamic and mechanical ...
Tópico(s): X-ray Diffraction in Crystallography
2015 - Royal Society of Chemistry | Dalton Transactions
Jarad A. Mason, Julia Oktawiec, Mercedes K. Taylor, Matthew R. Hudson, Julien Rodriguez, Jonathan E. Bachman, Miguel I. Gonzalez, Antonio Cervellino, Antonietta Guagliardi, Craig M. Brown, Philip L. Llewellyn, Norberto Masciocchi, Jeffrey R. Long,
Tópico(s): Carbon dioxide utilization in catalysis
2015 - Nature Portfolio | Nature
Pascal G. Yot, Louis Vanduyfhuys, E. Álvarez, Julien Rodriguez, J. P. Itié, Paul Fabry, Nathalie Guillou, Thomas Devic, Isabelle Beurroies, Philip L. Llewellyn, Véronique Van Speybroeck, Christian Serre, Guillaume Maurin,
The aluminum fumarate MOF A520 or MIL-53-FA is revealed to be a promising material for mechanical energy-related applications with performances in terms of work and heat energies which surpass those of any porous solids reported so far. Complementary experimental and computational tools are deployed to finely characterize and understand the pressure-induced structural transition at the origin of these unprecedented levels of performance.
Tópico(s): Hydrogen Storage and Materials
2015 - Royal Society of Chemistry | Chemical Science
Julien Rodriguez, Isabelle Beurroies, Thierry Loiseau, Renaud Denoyel, Philip L. Llewellyn,
In any process, the heat exchanged is an essential property required in its development. Whilst the work related to structural transitions of some flexible metal-organic frameworks (MOFs) has been quantified and linked with potential applications such as molecular springs or shock absorbers, the heat related to such transitions has never been directly measured. This has now been carried out with MIL-53(Al) using specifically devised calorimetry experiments. We project the importance of these heats ...
Tópico(s): Boron and Carbon Nanomaterials Research
2015 - Wiley | Angewandte Chemie International Edition
Tania Mendo, Gildas Glemarec, Jaime Mendo, E. Hjorleifsson, Sophie Smout, Simon Northridge, Julien Rodriguez, A. Mujal-Colilles, Mark James,
Increasing competition for marine space requires the appropriate development of indicators to best represent the use of marine areas and the value (whether economic, social and/or cultural) derived from such use. Fishers (the largest group of users) are often under-represented in marine spatial planning processes. Highly-resolved vessel tracking data provide opportunities to map the activities of fishing vessels at a level of detail never before available. Most effort mapping methods have focused ...
Tópico(s): Marine Bivalve and Aquaculture Studies
2023 - Elsevier BV | Ecological Indicators
C. Julien, Claire Rodriguez, G. Cuisinaud, Nicole F. Bernard, J Sassard,
Tópico(s): bioluminescence and chemiluminescence research
1985 - Elsevier BV | Journal of Chromatography B Biomedical Sciences and Applications
Gabriel Huang, Issam Laradji, David Vázquez, Simon Lacoste-Julien, Pau Rodríguez,
Labeling data is often expensive and time-consuming, especially for tasks such as object detection and instance segmentation, which require dense labeling of the image. While few-shot object detection is about training a model on novel (unseen) object classes with little data, it still requires prior training on many labeled examples of base (seen) classes. On the other hand, self-supervised methods aim at learning representations from unlabeled data which transfer well to downstream tasks such as ...
Tópico(s): Multimodal Machine Learning Applications
2022 - IEEE Computer Society | IEEE Transactions on Pattern Analysis and Machine Intelligence
Eduardo Espinosa, Fleur Rol, Julien Bras, Alejandro Rodríguez,
Tópico(s): Nanocomposite Films for Food Packaging
2020 - Springer Science+Business Media | Cellulose
Qian Wang, Julien Warnan, Santiago Rodríguez‐Jiménez, Jane J. Leung, Shafeer Kalathil, Virgil Andrei, Kazunari Domen, Erwin Reisner,
Harvesting solar energy to convert CO2 into chemical fuels is a promising technology to curtail the growing atmospheric CO2 levels and alleviate the global dependence on fossil fuels; however, the assembly of efficient and robust systems for the selective photoconversion of CO2 without sacrificial reagents and external bias remains a challenge. Here we present a photocatalyst sheet that converts CO2 and H2O into formate and O2 as a potentially scalable technology for CO2 utilization. This technology ...
Tópico(s): Covalent Organic Framework Applications
2020 - Nature Portfolio | Nature Energy
Alicia Lardennois, Gabriella Pásti, Teresa Ferraro, Flora Llense, Pierre Mahou, Julien Pontabry, David Rodriguez, Samantha Kim, Shoichiro Ono, Emmanuel Beaurepaire, Christelle Gally, Michel Labouesse,
Body-axis elongation constitutes a key step in animal development, laying out the final form of the entire animal. It relies on the interplay between intrinsic forces generated by molecular motors1–3, extrinsic forces exerted by adjacent cells4–7 and mechanical resistance forces due to tissue elasticity or friction8–10. Understanding how mechanical forces influence morphogenesis at the cellular and molecular level remains a challenge1. Recent work has outlined how small incremental steps power cell- ...
Tópico(s): Spaceflight effects on biology
2019 - Nature Portfolio | Nature
Eduardo Espinosa, Fleur Rol, Julien Bras, Alejandro Rodríguez,
The primary aim of this work was to evaluate various methods of nanocellulose production from wheat straw soda pulp. Wheat straw was cooked in 7% NaOH (over dried material.) at a liquid/solid ratio of 10/1 at 100 °C for 150 min to obtain unbleached semichemical pulp. Lignocellulose nanofibers were produced by fibrillation in a high pressure homogenizer, ultrafine friction grinder or twin-screw extruder of cellulose fiber previously extracted from the pulp. Optimizing lignocellulose nanofibers production ...
Tópico(s): Biofuel production and bioconversion
2019 - Elsevier BV | Journal of Cleaner Production
Julien Diener, Mathieu Rodriguez, Lionel Baboud, Lionel Revéret,
Abstract This paper presents a real‐time method to animate complex scenes of thousands of trees under a user‐controllable wind load. Firstly, modal analysis is applied to extract the main modes of deformation from the mechanical model of a 3D tree. The novelty of our contribution is to precompute a new basis of the modal stress of the tree under wind load. At runtime, this basis allows to replace the modal projection of the external forces by a direct mapping for any directional wind. We show that ...
Tópico(s): Greenhouse Technology and Climate Control
2009 - Wiley | Computer Graphics Forum
Silvia Novello, Dariusz M. Kowalski, Alexander Luft, Mahmut Gümüş, David Vicente, Julien Mazières, Jerónimo Rafael Rodríguez‐Cid, Ali Tafreshi, Ying Cheng, Ki Hyeong Lee, Alexander Golf, Shunichi Sugawara, Andrew Robinson, Balázs Halmos, Erin Jensen, Paul Schwarzenberger, M. Catherine Pietanza, Luis Paz‐Ares,
Clinical trials frequently include multiple end points that mature at different times. The initial report, typically based on the primary end point, may be published when key planned co-primary or secondary analyses are not yet available. Clinical Trial Updates provide an opportunity to disseminate additional results from studies, published in JCO or elsewhere, for which the primary end point has already been reported. We report 5-year efficacy and safety outcomes from the phase III KEYNOTE-407 ...
Tópico(s): Lung Cancer Diagnosis and Treatment
2023 - Lippincott Williams & Wilkins | Journal of Clinical Oncology
Jean‐Louis Guéant, Rosa-Maria Guéant-Rodríguez, Julien Fromonot, Abderrahim Oussalah, Huguette Louis, Céline Chéry, Mickael Gette, Stanislas Gleye, Jonas Callet, Jérémie Raso, François Blanchecotte, Patrick Lacolley, Régis Guieu, Véronique Regnault,
Many arguments suggest that neutrophils could play a prominent role in COVID-19. However, the role of key components of neutrophil innate immunity in severe forms of COVID-19 has deserved insufficient attention. We aimed to evaluate the involvement of neutrophil elastase, histone-DNA, and DNases in systemic and multi-organ manifestations of COVID-19.
Tópico(s): Neutrophil, Myeloperoxidase and Oxidative Mechanisms
2021 - Wiley | Allergy
Julien Lévy, Rosa-Maria Rodríguez-Guéant, Abderrahim Oussalah, Élise Jeannesson, Denis Wahl, Stéphane Ziuly, Jean‐Louis Guéant,
The association of moderate hyperhomocysteinemia (HHcy) (15-30 μmol/L) with cardiovascular diseases (CVD) has been challenged by the lack of benefit of vitamin supplementation to lowering homocysteine. Consequently, the results of interventional studies have confused the debate regarding the management of patients with intermediate/severe HHcy.We sought to evaluate the association of intermediate (30-100 μmol/L) and severe (>100 μmol/L) HHcy related to vitamin deficiencies and/or inherited disorders with ...
Tópico(s): Iron Metabolism and Disorders
2020 - Elsevier BV | American Journal of Clinical Nutrition
Andreia Mendes, Julien P. Gigan, Christian Rodríguez Rodrígues, Sébastien A. Choteau, Doriane Sanséau, Daniela Barros, Catarina R. Almeida, Voahirana Camosseto, Lionel Chasson, Adrienne W. Paton, James C. Paton, Rafael J. Argüello, Ana-María Lennon-Duménil, Evelina Gatti, Philippe Pierre,
In stressed cells, phosphorylation of eukaryotic initiation factor 2α (eIF2α) controls transcriptome-wide changes in mRNA translation and gene expression known as the integrated stress response. We show here that DCs are characterized by high eIF2α phosphorylation, mostly caused by the activation of the ER kinase PERK (EIF2AK3). Despite high p-eIF2α levels, DCs display active protein synthesis and no signs of a chronic integrated stress response. This biochemical specificity prevents translation arrest ...
Tópico(s): interferon and immune responses
2020 - | Life Science Alliance
Francisco Morales-Zavala, Nathalie Casanova‐Morales, Raúl B. Gonzalez, América Chandía-Cristi, Lisbell D. Estrada, I. Alvizu, Victor Waselowski, Fanny Guzmán, Simón Guerrero, Marisol Oyarzún-Olave, C. Rebolledo Espinoza, Enrique Rodríguez, Julien Armijo, H. Bhuyan, M. Favre, Alejandra Álvarez, Marcelo J. Kogan, J. R. Maze,
Stable and non-toxic fluorescent markers are gaining attention in molecular diagnostics as powerful tools for enabling long and reliable biological studies. Such markers should not only have a long half-life under several assay conditions showing no photo bleaching or blinking but also, they must allow for their conjugation or functionalization as a crucial step for numerous applications such as cellular tracking, biomarker detection and drug delivery.We report the functionalization of stable fluorescent ...
Tópico(s): Luminescence and Fluorescent Materials
2018 - BioMed Central | Journal of Nanobiotechnology
Grégory Beaune, Carlès Blanch-Mercader, Stéphane Douezan, Julien Dumond, David Gonzalez‐Rodriguez, Damien Cuvelier, Thierry Ondarçuhu, Pierre Sens, Sylvie Dufour, Michael P. Murrell, Françoise Brochard‐Wyart,
Significance The migration of cellular populations drives influential and disparate biological processes, from the establishment of embryos to the invasion of cancerous tissues. Its deregulation can lead to improper development or pathogenesis of diseases. While many of the mechanisms that promote single-cell migration have been identified, how cell assemblies coordinate these mechanisms is poorly understood. This manuscript details modes of collective migration and the role of tissue dewetting ...
Tópico(s): Plant Surface Properties and Treatments
2018 - National Academy of Sciences | Proceedings of the National Academy of Sciences
Benjamin Martin, Joerg Sedelmeier, Anaïs Bouisseau, Patricia Fernandez‐Rodriguez, Julien Haber, Florian Kleinbeck, Sonja B. Kamptmann, Flavien Susanne, Pascale Hoehn, Marian Lanz, Laurent Pellegatti, Francesco Venturoni, Jeremy Robertson, Michael C. Willis, Berthold Schenkel,
Hydrogen peroxide is showcased in a range of oxidations, operating in continuous-flow equipment to deliver practical and risk-minimized procedures.
Tópico(s): Analytical Chemistry and Sensors
2016 - Royal Society of Chemistry | Green Chemistry
Sylvie Leroy, Nadine Ellouz-Zimmermann, Jordane Corbeau, F. Rolandone, Bernard Mercier de Lépinay, Bertrand Meyer, R. Momplaisir, J.L. Granja-Bruña, Anne Battani, Céline Baurion, Evgueni Burov, Valérie Clouard, Rémy Deschamps, Christian Gorini, Youri Hamon, Manfred Lafosse, Jottin Leonel, Laëtitia Le Pourhiet, P. Llanes, Nicolas Loget, Francis Lucazeau, D. Pillot, Jeffrey Poort, Kevin R. Tankoo, J. L. Cuevas, José‐Fernando Alcaide, Claude Jean Poix, Alfonso Muñoz Martín, Serge Mitton, Yamil Rodriguez, Julien Schmitz, Leonardo Seeber, A. Carbó‐Gorosabel, Santiago Fernández Muñoz,
Abstract We explored the submarine portions of the Enriquillo–Plantain Garden Fault zone ( EPGFZ ) and the Septentrional–Oriente Fault zone ( SOFZ ) along the Northern Caribbean plate boundary using high‐resolution multibeam echo‐sounding and shallow seismic reflection. The bathymetric data shed light on poorly documented or previously unknown submarine fault zones running over 200 km between Haiti and Jamaica ( EPGFZ ) and 300 km between the Dominican Republic and Cuba ( SOFZ ). The primary plate‐boundary structures ...
Tópico(s): Geological and Geophysical Studies Worldwide
2015 - Wiley | Terra Nova
Philippe Compain, Camille Decroocq, Antoine Joosten, Julien de Sousa, David Rodríguez‐Lucena, Terry D. Butters, J. Bertrand, Romain Clément, Clément Boinot, Frédéric Becq, Caroline Norez,
Abstract Cystic fibrosis is caused by a mutation in the gene for the cystic fibrosis transmembrane conductance regulator (CFTR) protein. N ‐butyl 1‐deoxynojirimycin ( N ‐Bu DNJ), a clinical candidate for the treatment of cystic fibrosis, is able to act as a CFTR corrector by overcoming the processing defect of the mutant protein. To explore the potential of multivalency on CFTR correction activity, a library of twelve DNJ click clusters with valencies ranging from 3 to 14 were synthesized. Significantly, ...
Tópico(s): Congenital Ear and Nasal Anomalies
2013 - Wiley | ChemBioChem
Julien Parinet, Manuel J. Rodríguez, Jean-Baptiste Sérodes,
Tópico(s): Water Quality Monitoring Technologies
2012 - Springer Science+Business Media | Environmental Monitoring and Assessment
Lilia D. Mendoza, Jorge Rodríguez, Julien Leclaire, Gérard Buono, Frédéric Fotiadu, Frédéric Carrière, Abdelkarim Abousalham,
In the present study, we propose a continuous assay for the screening of sn-2 lipases by using triacylglycerols (TAGs) from Aleurites fordii seed (tung oil) and a synthetic TAG containing the α-eleostearic acid at the sn-2 position and the oleic acid (OA) at the sn-1 and sn-3 positions [1,3-O-dioleoyl-2-O-α-eleostearoyl-sn-glycerol (sn-OEO)]. Each TAG was coated into a microplate well, and the lipase activity was measured by optical density increase at 272 nm due to transition of α-eleostearic acid from ...
Tópico(s): Analytical Chemistry and Chromatography
2011 - Elsevier BV | Journal of Lipid Research
Julien Parinet, Manuel J. Rodríguez, Jean Sérodes, François Proulx,
This paper describes a method of determining the following compounds in water characterised by complex matrices (raw waters and drinking waters): geosmin, 2-methylisoborneol (2-MIB), 2-isobutyl-3-methoxypyrazine (IBM), 2-isopropyl-3-methoxypyrazine (IPM) and 2,4,6-trichloroanisole (TCA). The method is carried out using headspace solid-phase microextraction (HS-SPME) combined with gas chromatography (GC) and ion trap mass spectrometry (ITMS). Several parameters of extraction and desorption were optimised ...
Tópico(s): Environmental Chemistry and Analysis
2011 - Taylor & Francis | International Journal of Environmental & Analytical Chemistry
Julien Parinet, Manuel J. Rodríguez, Jean Sérodes,
Geosmin and 2-methylisoborneol are off-flavour compounds related to poor organoleptics and a decrease in consumer satisfaction with drinking water. The relationship between these off-flavour compounds and 39 parameters of water quality (chemical, physical and biological) for three different surface waters from lotic systems that supply potable water to Quebec City and Lévis (Canada) was studied using principal component analysis. The objective of this study was to show that a multidimensional approach ...
Tópico(s): Groundwater and Isotope Geochemistry
2010 - Elsevier BV | Water Research
José-Antonio Serratos-Hernández, Fabián Islas-Gutiérrez, Enrique Buendía-Rodríguez, Julien Berthaud,
Maize diversity is widespread in Mexico and it has been stewarded by campesinos in small communities until the present. With the arrival of transgenic maize, the objective of this study is to analyze possible scenarios that could result if genetically modified maize were not regulated and openly available in Mexico. By applying a simple logistic model based on the conditions of maize production in Mexico, the dispersion of transgenic maize in different situations within fields of farmers is described. ...
Tópico(s): Animal Genetics and Reproduction
2004 - EDP Sciences | Environmental Biosafety Research
... Alier, Hali Healy, Leah Temper, Mariana Walter, Beatriz Rodriguez-Labajos, Julien-François Gerber, Marta Conde Between science and activism: ...
Tópico(s): Climate Change Policy and Economics
1968 - University of Chicago Press | Journal of Political Economy
Nicolás Rodríguez, Julien Heuvingh, Frédéric Pincet, Sophie Cribier,
Formation of pore-like structures in cell membranes could participate in exchange of matter between cell compartments and modify the lipid distribution between the leaflets of a bilayer. We present experiments on two model systems in which major lipid redistribution is attributed to few submicroscopic transient pores. The first kind of experiments consists in destabilizing the membrane of a giant unilamellar vesicle by inserting conic-shaped fluorescent lipids from the outer medium. The inserted ...
Tópico(s): RNA Interference and Gene Delivery
2005 - Elsevier BV | Biochimica et Biophysica Acta (BBA) - General Subjects
Julien Rodriguez, Isabelle Beurroies, Thierry Loiseau, Renaud Denoyel, Philip L. Llewellyn,
Abstract In any process, the heat exchanged is an essential property required in its development. Whilst the work related to structural transitions of some flexible metal–organic frameworks (MOFs) has been quantified and linked with potential applications such as molecular springs or shock absorbers, the heat related to such transitions has never been directly measured. This has now been carried out with MIL‐53(Al) using specifically devised calorimetry experiments. We project the importance of these ...
Tópico(s): Boron and Carbon Nanomaterials Research
2015 - Wiley | Angewandte Chemie