Conservatoire national des arts et métiers

About: Conservatoire national des arts et métiers is a education organization based out in Paris, France. It is known for research contribution in the topics: Population & Context (language use). The organization has 3573 authors who have published 7127 publications receiving 141430 citations. The organization is also known as: CNAM & Conservatoire des arts et métiers.

Response of CsI(Tl) scintillators over a large range in energy and atomic number of ions. Part I: recombination and δ-electrons

Abstract: A simple formalism describing the light response of CsI(Tl) to heavy ions, which quantifies the luminescence and the quenching in terms of the competition between radiative transitions following the carrier trapping at the Tl activator sites and the electron–hole recombination, is proposed. The effect of the δ-rays on the scintillation efficiency is for the first time quantitatively included in a fully consistent way. The light output expression depends on four parameters determined by a procedure of global fit to experimental data.

Inter-cell interference analysis for OFDM/FBMC systems

Abstract: Multicarrier communication technologies are promising candidates for 4G wireless access systems. In this paper, we focus on the downlink of multicellular networks and we investigate the influence of the inter-cell interference in an unsynchronized frequency division duplex (FDD) context with a frequency resuse of 1. We compare the conventional orthogonal frequency division multiplexing with cyclic prefix modulation (CP-OFDM) and the filter bank based multi-carrier modulation (FBMC). Two tables modeling the mean interference power are given and show that, in FBMC case, the interference is more localized than in OFDM case. Finaly, these tables are used to evaluate performance in terms of average capacity in FBMC multi-cell networks compared to CP-OFDM ones.

Applications of Sensitized-Semiconductors as Heterogeneous Visible-Light Photocatalysts in Organic Synthesis

Abstract: The industrial transition to more sustainable chemical manufacturing requires the development of a variety of high-performance heterogeneous catalysts. Recently, new classes of heterogeneous and re...

Persistence of treatment with biologics for patients with psoriasis: a real-world analysis of 16 545 biologic-naïve patients from the French National Health Insurance database (SNIIRAM).

Abstract: Background Long-term clinical effectiveness of biologics in psoriasis is needed. Objectives We aimed to assess the long-term persistence of biologics used to treat psoriasis in a real-life setting. Methods All adults with psoriasis having been registered in the French National Health Insurance database (SNIIRAM) between 2008 and 2016 were eligible for inclusion. Psoriasis was defined as the fulfilment of at least two prescriptions for topical formulations of a vitamin D derivative within a 2-year period. The study population comprised biologic-naive patients, i.e. those with a first prescription of etanercept, infliximab, adalimumab or ustekinumab. Persistence of treatment with a biologic was defined as the time interval between initiation and discontinuation. Results In this nationwide population-based cohort, 16 545 out of 874 549 patients with psoriasis were biologic-naive (mean age 48·6 years; males 57·3%, mean follow-up 3·6 years). The mean ± SD length of follow-up for biologic-naive patients was 3·6 ± 2·4 years. There were 9988 treatment discontinuations. Kaplan-Meier survival analyses revealed a persistence rate of 61·9% for the first, 33·3% for the third and 22·6% for the fifth year. Ustekinumab had a higher persistence rate than the other biologics. This finding should be interpreted with caution, in view of differences in administration between the biologics. About 85% of patients, having discontinued their first biologic, resumed systemic treatment of some type in the following year (biologics in 85% of cases). Conclusions Our data suggest that biologics are less effective than physicians have been led to believe in a real-life, nonselected population. Further, long-term disease control requires several courses of different biologics.