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Consortium of Swiss Academic Libraries

Algebraic twists of modular forms and Hecke orbits

Fouvry, Étienne ; Kowalski, Emmanuel ; Michel, Philippe

In: Geometric and Functional Analysis, 2015, vol. 25, no. 2, p. 580-657

Université de Fribourg

Altering the temporal regulation of one transcription factor drives evolutionary trade-offs between head sensory organs

Ramaekers, Ariane ; Claeys, Annelies ; Kapun, Martin ; Mouchel-Vielh, Emmanuèle ; Potier, Delphine ; Weinberger, Simon ; Grillenzoni, Nicola ; Dardalhon-Cuménal, Delphine ; Yan, Jiekun ; Wolf, Reinhard ; Flatt, Thomas ; Buchner, Erich ; Hassan, Bassem A.

In: Developmental Cell, 2019, vol. 50, no. 6, p. 780-792.e7

Size trade-offs of visual versus olfactory organs is a pervasive feature of animal evolution. This could result from genetic or functional constraints. We demonstrate that head sensory organ size trade-offs in Drosophila are genetically encoded and arise through differential subdivision of the head primordium into visual versus non- visual fields. We discover that changes in the temporal...

Consortium of Swiss Academic Libraries

Acetylcholine release and the cholinergic genomic locus

Israël, Maurice ; Dunant, Yves

In: Molecular Neurobiology, 1998, vol. 16, no. 1, p. 1-20

Université de Fribourg

About the usefulness of contact precautions for carriers of extended-spectrum beta-lactamase-producing Escherichia coli

Zahar, Jean-Ralph ; Poirel, Laurent ; Dupont, Claire ; Fortineau, Nicolas ; Nassif, Xavier ; Nordmann, Patrice

In: BMC Infectious Diseases, 2015, vol. 15, p. 512

Extended-spectrum β-lactamases producing Escherichia coli (ESBL-E) are increasingly identified in health care facilities. As previously done for the control of methicillin-resistant Staphylococcus aureus, many hospitals have established screening strategies for early identification of patients being carriers of ESBL producers in general and ESBL-E in particular, and have implemented contact...

Université de Fribourg

Absolute cross sections for electron collisions with diacetylene: elastic scattering, vibrational excitation and dissociative attachment

Allan, Michael ; May, Olivier ; Fedor, Juraj ; Ibǎnescu, Bogdan C ; Andrić, Lidija ; Winstead, Carl ; McKoy, Vincent

In: Journal of Physics: Conference Series, 2012, vol. 388, no. 5, p. 052082

We present absolute experimental cross sections for elastic scattering, vibrational excitation by electron impact and for dissociative electron attachment to 1,3-butadiyne, as well as calculations of the elastic cross sections.

Université de Fribourg

Ab initio many-body effects in TiSe₂: A possible excitonic insulator scenario from GW band-shape renormalization

Cazzaniga, M. ; Cercellier, H. ; Holzmann, M. ; Monney, Claude ; Aebi, Philipp ; Onida, Giovanni ; Olevano, V.

In: Physical Review B - Condensed matter and materials physics, 2012, vol. 85, no. 19, p. 195111

We present both theoretical ab-initio results within the Hedin's GW approximation and experimental angle-resolved photoemission and scanning tunneling spectroscopy measurements on TiSe₂. With respect to the density-functional Kohn-Sham metallic picture, the many-body GW self-energy leads to a ≈0.2-eV band-gap insulator consistent with our STS spectra at 5 K. The highest valence and the lowest...