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Université de Fribourg

A new glirid-like cricetid from the lower Oligocene of Southern China

Lu, Xiao-Yu ; Ni, Xijun ; Maridet, Olivier

In: Journal of Vertebrate Paleontology, 2021, p. e1917587

Here we report a new cricetid s.l., Caecocricetodon yani, gen. et sp. nov., discovered in the early Oligocene of the Caijiachong Formation in Yunnan Province, China. The new cricetid differs from all known cricetids or stem muroids by its particular molar pattern displaying numerous crests and spurs. Our phylogenetic analysis based on a matrix including 42 taxa and 72 characters indicates...

Università della Svizzera italiana

Design space exploration in high-level synthesis

Ferretti, Lorenzo ; Pozzi, Laura (Dir.)

Thèse de doctorat : Università della Svizzera italiana, 2020 ; 2020INFO016.

High Level Synthesis (HLS) is a process which, starting from a high-level description of an application (C/C++), generates the corresponding RTL code describing the hardware implementation of the desired functionality. The HLS process is usually controlled by user-given directives (e.g., directives to set whether or not to unroll a loop) which influence the resulting implementation area and...

Université de Fribourg

Telechelics based on catalytic alternating ring-opening metathesis polymerization

Pal, Subhajit ; Alizadeh, Mahshid ; Kilbinger, Andreas F. M.

In: ACS Macro Letters, 2019, vol. 8, no. 10, p. 1396–1401

We describe a protocol to synthesize alternating telechelic ROMP copolymers of 7- oxa-norbornene derivatives and cycloalkenes under catalytic conditions. These copolymers were synthesized using Grubbs’ second-generation catalyst. The sterically less hindered backbone double bonds of the resulting alternating copolymers facilitate the chain transfer (secondary metathesis) reactions. In the ...

Université de Fribourg

The Evolution of Aging

Fabian, Daniel ; Flatt, Thomas

In: Nature Education Knowledge, 2011, vol. 3, no. 3, p. 1-10

Université de Fribourg

Non-invasive Raman identification of crystalline and glassy phases in a 1781 Sèvres Royal Factory soft paste porcelain plate

Colomban, Philippe ; Maggetti, Marino ; Albis, Antoine d’

In: Journal of the European Ceramic Society, 2018, vol. 38, no. 15, p. 5228–5233

A Raman study of a Sèvres soft paste (frit) porcelain plate allowed the identification of both the crystalline and amorphous phases. Cristobalite and pseudowollastonite gave main Raman signatures in the body where also tridymite, amorphous alkali silicate glass and lead arsenate apatite were detected. Na0.4K0.1Ca0.5Pb4(AsO4)3 lacunar apatite is identified as opacifier in blue and green...

Université de Fribourg

Triggered metal ion release and oxidation: ferrocene as a mechanophore in polymers

Giannantonio, Michela Di ; Ayer, Mathieu A. ; Verde-Sesto, Ester ; Lattuada, Marco ; Weder, Christoph ; Fromm, Katharina M.

In: Angewandte Chemie International Edition, 2018, vol. 57, no. 35, p. 11445-11450

The introduction of mechanophores into polymers makes it possible to transduce mechanical forces into chemical reactions that can be used to impart functions such as self‐healing, catalytic activity, and mechanochromic response. Here, an example of mechanically induced metal ion release from a polymer is reported. Ferrocene (Fc) was incorporated as an iron ion releasing mechanophore into...