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Institution

University of Rennes

EducationRennes, France
About: University of Rennes is a education organization based out in Rennes, France. It is known for research contribution in the topics: Population & Crystal structure. The organization has 18404 authors who have published 40374 publications receiving 995327 citations.


Papers
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Journal ArticleDOI
TL;DR: In this article, the authors construct interval exchange transformations on four intervals satisfying a strong irrationality condition and having exactly two ergodic invariant probability measures, and show that the Weyl equidistribution theorem is false even under the strongest irrationality assumptions.
Abstract: We construct interval exchange transformations on four intervals satisfying a strong irrationality condition and having exactly two ergodic invariant probability measures. This shows that although Kronecker’s theorem remains true for interval exchange transformations, the Weyl equidistribution theorem is false even under the strongest irrationality assumptions.

186 citations

Journal ArticleDOI
TL;DR: The subject is reviewed by providing an overview of the relevant key mechanisms of bubble generation within a coherent hydrodynamic context; and different foaming techniques which exploit these mechanisms are discussed.

186 citations

Journal ArticleDOI
TL;DR: The paper shows how existence and properties of such codes are linked to arithmetic properties of skew polynomials and compute all Euclidean and Hermitian self-dual @q-cyclic codes over F"4 of length less than 40.

186 citations

Journal ArticleDOI
TL;DR: In this paper, the palladium-katalysierte Verknupfung der sp2-hybridisierten Kohlenstoffatome von Aryl-, Heteroaryl-and Vinylhalogeniden with den sp-Hybridi-tentionalized Acetylenen in einer Kreuzkupplung is presented.
Abstract: Konjugierte Alkine sind stets wiederkehrende Synthesebausteine in Naturstoffen, zahlreichen unverzichtbaren industriellen Zwischenstufen, in Pharmazeutika und Agrochemikalien sowie in molekularen Materialien fur Optik und Elektronik. Daher zahlt die palladiumkatalysierte Verknupfung der sp2-hybridisierten Kohlenstoffatome von Aryl-, Heteroaryl- und Vinylhalogeniden mit den sp-hybridisierten Kohlenstoffatomen von terminalen Acetylenen in einer Kreuzkupplung unbestreitbar zu den bedeutendsten Entwicklungen der Alkinchemie in den vergangenen funfzig Jahren. Auf die grundlegenden Arbeiten der 1970er folgte eine intensive Suche nach allgemeineren und verlasslicheren Reaktionsbedingungen. Das Interesse an einer katalytischen Aktivierung anspruchsvoller Substrate, die unbedingte Notwendigkeit, den Ressourcenverbrauch zu minimieren, und die einfache Synthese einer stetig wachsenden Zahl an funktionalisierten Eninen fuhrte allmahlich zu den aktuellen Katalysatoren mit hohen Umsatzzahlen. Der vorliegende Aufsatz gibt einen Uberblick uber hoch wirksame Palladium-Katalysatorsysteme fur die direkte Alkinylierung von C(sp2)-Halogeniden mit terminalen Alkinen in homogener oder heterogener Phase.

185 citations

Journal ArticleDOI
TL;DR: It is concluded that darkening of the encapsulated eggs was due to cell necrosis rather than to extracellular melanin deposition, and that haemocytes other than lamellocytes were engaged in capsule formation, and the immunosuppressive factors did not target only the lamellocyte but also the plasmatocytes.
Abstract: Eggs of an immune suppressive strain ( = virulent) of the parasitoid Leptopilina boulardi are encapsulated neither in resistant nor in susceptible strains of Drosophila melanogaster but are encapsulated in Drosophila yakuba. Eggs of a non-immune suppressive strain ( = avirulent) of the same parasitoid are encapsulated in a resistant strain of D. melanogaster and in D. yakuba but are not encapsulated in a susceptible strain of D. melanogaster. Egg chorion in the 2 parasitoid strains showed the same morphology and the same modifications after egg laying whatever the host strain. When a capsule is built, a small dotted dense layer was first spread on the chorion, followed by accumulation layers of cells (plasmatocytes and lamellocytes) and lastly necrosis of the inner haemocytes. The encapsulated eggs darken only at the time of necrosis of haemocytes. In susceptible hosts, neither the tiny dense layer nor haemocyte accumulation occured. We concluded that (1) this tiny dense layer was present before the deposition of the first haemocytes, (2) inhibition of deposition of this dense layer was the initial event of the induced immunosupression, (3) haemocytes other than lamellocytes were engaged in caspsule formation, (4) the immunosupressive factors did not target only the lamellocytes but also the plasmatocytes, (5) darkening of the encapsulated eggs was due to cell necrosis rather than to extracellular melanin deposition.

185 citations


Authors

Showing all 18470 results

NameH-indexPapersCitations
Philippe Froguel166820118816
Bart Staels15282486638
Yi Yang143245692268
Geoffrey Burnstock141148899525
Shahrokh F. Shariat118163758900
Lutz Ackermann11666945066
Douglas R. MacFarlane11086454236
Elliott H. Lieb10751257920
Fu-Yuan Wu10736742039
Didier Sornette104129544157
Stefan Hild10345268228
Pierre I. Karakiewicz101120740072
Philippe Dubois101109848086
François Bondu10044069284
Jean-Michel Savéant9851733518
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Performance
Metrics
No. of papers from the Institution in previous years
YearPapers
202321
2022176
20212,655
20202,735
20192,670
20182,378