818 research outputs found
Dynamical and Bose-Einstein correlations of centrally produced pion pairs in hadron-hadron collisions
No full textEngels J, Schilling K. Dynamical and Bose-Einstein correlations of centrally produced pion pairs in hadron-hadron collisions. Nuclear Physics, B. 1978;136(2):349-364.We calculate dynamical and Bose-Einstein inclusive correlations of pion pairs (as functions of the invariant pair mass M [pi][pi]) from the decay of independently produced clusters, whose finite size is explicitly taken into account. We show that recent pp bubble chamber data from FNAL on the correlation functions C 2(M'[pi][pi]) for centrally produced [pi] + [pi] - and [pi] - [pi] - pairs can be understood within this picture. Some implications for Hanbury-Brown-Twiss type analyses are discussed
Affrètement. Loi applicable. Convention de Rome. Article 4-4. Interprétation
No full textInternational audience(CJCE 6 oct. 2009, aff. C-133/08, Intercontainer Interfrigo SC c/ Balkenende Oosthuizen BV, cette Revue 2010, supra, obs. A. Marmisse-d'Abbadie d'Arrast ; D. 2010. Jur. 236, note F. Jault-Seseke, et Pan. 1585, obs. P. Courbe et F. Jault-Seseke ; Rev. crit. DIP 2010. 199, obs. P. Lagarde ; RTD eur. 2010. 195, obs. L. Grard ; RD transports 2009, n° 210, obs. L. Grard ; JCP 2009. II. note L. d'Avout et L. Perreau-Saussine ; RLDA mars 2010, p. 7, obs. M.-E. Ancel
De la compétence du juge du lieu d'exécution habituel du travail pour le personnel navigant des compagnies aériennes
No full textInternational audience(CJUE 14 sept. 2017, aff. C-168/16 et C-169/16, D. 2018. 107, note P. Dupont et G. Poissonnier ; ibid. 966, obs. S. Clavel et F. Jault-Seseke ; Dr. soc. 2017. 1085, obs. V. Lacoste-Mary ; RTD eur. 2018. 163, obs. L. Grard ; RDT 2017. 816, note N. Mihman ; JCP S 2017. 1338, note J.-P. Tricoit
Structural bases for substrate recognition and activity in Meaban virus nucleoside-2'-O-methyltransferase
No full textViral methyltransferases are involved in the mRNA capping process, resulting in the transfer of a methyl group from S-adenosyl-L-methionine to capped RNA. Two groups of methyltransferases (MTases) are known: (guanine-N7)-methyltransferases (N7MTases), adding a methyl group onto the N7 atom of guanine, and (nucleoside-2'-O-)-methyltransferases (2'OMTases), adding a methyl group to a ribose hydroxyl. We have expressed and purified two constructs of Meaban virus (MV; genus Flavivirus) NS5 protein MTase domain (residues 1-265 and 1-293, respectively). We report here the three-dimensional structure of the shorter MTase construct in complex with the cofactor S-adenosyl-L-methionine, at 2.9 angstrom resolution. Inspection of the refined crystal structure, which highlights structural conservation of specific active site residues, together with sequence analysis and structural comparison with Dengue virus 2'OMTase, suggests that the crystallized enzyme belongs to the 2'OMTase subgroup. Enzymatic assays show that the short MV MTase construct is inactive, but the longer construct expressed can transfer a methyl group to the ribose 2'O atom of a short GpppAC(5) substrate. West Nile virus MTase domain has been recently shown to display both N7 and 2'O MTase activity on a capped RNA substrate comprising the 5'-terminal 190 nt of the West Nile virus genome. The lack of N7 MTase activity here reported for MV MTase may be related either to the small size of the capped RNA substrate, to its sequence, or to different structural properties of the C-terminal regions of West Nile virus and MV MTase-domains
De la compétence du juge du lieu d'exécution habituel du travail pour le personnel navigant des compagnies aériennes
No full textInternational audience(CJUE 14 sept. 2017, aff. C-168/16 et C-169/16, D. 2018. 107, note P. Dupont et G. Poissonnier ; ibid. 966, obs. S. Clavel et F. Jault-Seseke ; Dr. soc. 2017. 1085, obs. V. Lacoste-Mary ; RTD eur. 2018. 163, obs. L. Grard ; RDT 2017. 816, note N. Mihman ; JCP S 2017. 1338, note J.-P. Tricoit
Oligomannosides or oligosaccharide-lipids as potential substrates for rat liver cytosolic α-D-mannosidase
No full textInternational audienceWe have previously reported the substrate specificity of the cytosolic α--mannosidase purified from rat liver using Man * GlcNAc, i.e. Manα1-2Manα1-3(Manα1-2Manα1-6)Man α1-6(Manα1-2Manα1-2Manα1-3)Manβ1-4GlcNAc, as substrate [Grard, Saint-Pol, Haeuw, Alonso, Wieruszeski, Strecker and Michalski (1994) Eur. J. Biochem. 223, 99-106]. Man * GlcNAc is hydrolysed giving Man & GlcNAc, i.e. Manα1-2Manα1-2Manα1-3(Manα1-6)Manβ1-4GlcNAc, possessing the same structure as the oligosaccharide of the dolichol pathway formed in the cytosolic compartment during the biosynthesis of N-glycosylprotein glycans. We study here the activity of the purified cytosolic α--mannosidase towards the oligosaccharidediphosphodolichol intermediates formed during the biosynthesis Abbreviations used : P-P-Dol, diphosphodolichol ; Man 9 GlcNAc 2-P-P-Dol, Manα1-2Manα1-3(Manα1-2Manα1-6)Manα1-6(Manα1-2Manα1-2Manα1-3)Manβ1-4GlcNAcβ1-4GlcNAc-P-P-Dol ; GDP-Man, guanosyl diphosphomannose ; Dol-P-Man, mannosylphosphoryldolichol ; OS-GlcNAc 2 , soluble oligosaccharides possessing a diN -acetylchitobiose sequence at their reducing end ; OS-GlcNAc 1 , soluble oligosaccharides possessing a single Nacetylglucosamine residue at their reducing end ; PNGase F, peptide N-glycosidase F (EC 3.5.1.52) ; Endo H, endo-N-acetyl-β-D-glucosaminidase H (EC 3.2.1.96)
Chronique Droit européen des transports - Contrat de transport aérien et clause attributive de juridiction, en cas de demande d'indemnisation forfaitaire et immédiate pour désagrément sérieux : Quelle transmissibilité ? Quid du caractère abusif de la clause ?
No full text[CJUE, 1re ch., 18 nov. 2020, aff. C-519/19, Ryanair AC c/ DelayFix, ECLI:EU:C:2020:933, D. 2021. 412, note F. Jault-Seseke
Chronique Droit européen des transports – Renouvellement des permis de conduire et reconnaissance mutuelle à automaticité limitée
No full textInternational audience[CJUE, 29 avr. 2021, aff. C-47/20, F. c/ Stadt Karlsruhe – CJUE, 29 avr. 2021, aff. C-56/20, AR c/ Stadt Pforzheim, ECLI:EU:C:2021:332
Chronique Droit européen des transports - Aides d'État et transport maritime : le nouvel environnement concurrentiel rend difficile la restructuration économique des compagnies de ferry
No full textInternational audience(Trib. UE, 11 sept. 2012, n° T-565/08, Corsica ferries France c/ Commission, AJDA 2012. 2267, chron. M. Aubert, E. Broussy et H. Cassagnabère ; RFDA 2013. 367, chron. C. Mayeur-Carpentier, L. Clément-Wilz et F. Martucci ; décision du 24 octobre 2011 concernant l'aide à la restructuration de « SeaFrance SA », JOUE n° L 195 du 21 juill. 2012, p. 1
La notion de « transporteur aérien » au sens « européen » de la convention de Montréal : prévalence de l'approche formelle
No full textInternational audience(CJUE 9 septembre 2015, aff. C-240/14, Eleonore Prüller-Frey, ECLI:EU:C:2015:567, D. 2015. 1838 ; ibid. 2016. 1045, obs. H. Gaudemet-Tallon et F. Jault-Seseke ; CJUE 26 février 2015, aff. C-6/14, Wucher Helicopter et Euro-Aviation Versicherung, ECLI:EU:C:2015:122
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