derniers depôts

Ajouté le 30/09/2022

A capped bioinspired ligand built from a tris(2-pyridyl-methyl)amine (TPA) unit and surmounted by a triazole-based intramolecular H-bonding secondary sphere was prepared. The resulting cage provides a well-defined cavity combining the hydrophobic nature with H-bonding properties. Its coordinating properties were explored using Zn(II) and Cu(II) metal ions.

Ajouté le 30/09/2022

Rapid, yet sensitive and accurate testing concepts are critical in the control of spreading diseases. With the COVID-19 pandemic still ongoing, the need for efficient, fast and accurate testing of the infection state of children and the elderly traveling as well as people with symptoms has not declined. Most current methods, which are highly sensitive, are rather slow and cannot be applied at the point of care.

Ajouté le 28/09/2022

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Ajouté le 28/09/2022

A linear code is linear complementary dual (LCD) if it meets its dual trivially. LCD codes have been a hot topic recently due to Boolean masking application in the security of embarked electronics (Carlet and Guilley, 2014). Additive codes over F 4 are F 4-codes that are stable by codeword addition but not necessarily by scalar multiplication. An additive code over F 4 is additive complementary dual (ACD) if it meets its dual trivially.

Ajouté le 28/09/2022

The stereoselective copper-mediated hydroxylation of intramolecular C H bonds from tridentate ligands is reinvestigated using DFT calculations. The computational study aims at deciphering the mechanism of C H hydroxylation obtained after reaction of Cu(I) precursors with dioxygen, using ligands bearing either activated (L 1) or nonactivated (L 2) C H bonds. Configurational analysis allows rationalization of the experimentally observed regio-and stereoselectivity.

Ajouté le 27/09/2022

In this study, we analyse the famous Aw-Rascle system in which the difference between the actual and the desired velocities (the offset function) is a gradient of a singular function of the density. This leads to a dissipation in the momentum equation which vanishes when the density is zero. The resulting system of PDEs can be used to model traffic or suspension flows in one dimension with the maximal packing constraint taken into account.

Ajouté le 28/09/2022

The controlled rupture of a core-shell capsule and the timely release of encapsulated materials are essential steps of the efficient design of such carriers. The mechanical and physico-chemical properties of their shells (or membranes) mainly govern the evolution of such systems under stress and notably the link between the dynamics of rupture and the mechanical properties.

Ajouté le 27/09/2022

A vast literature on gender wage gaps has examined the importance of selection into employment. However, most analyses have focused only on female labour force participation and gaps at the median. The Great Recession questions this approach both because of the major shift in male employment that it implied but also because women's decisions to participate seem to have been different along the distribution, particularly due to an "added worker effect".

Ajouté le 26/09/2022

We provide an estimate of the environmental impact of the recruitment system in the economics profession, known as the “international job market for economists”. Each year, most graduating PhDs seeking jobs in academia, government, or companies participate in this job market. The market follows a standardized process, where candidates are pre-screened in a short interview which takes place at an annual meeting in Europe or in the United States.

Ajouté le 26/09/2022

Le changement climatique, la perte de la biodiversité et l’altération globale de l’environnement détériorent la santé des populations. Plus particulièrement, l’augmentation des périodes marquées par des températures élevées et leur persistance pourraient constituer un risque majeur pour une large part de la population et limiter drastiquement l’activité humaine.

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