Progress in Atomic Fountains at LNE-SYRTE

We give an overview of the work done with the Laboratoire National de M\'etrologie et d'Essais-Syst\`emes de R\'ef\'erence Temps-Espace (LNE-SYRTE) fountain ensemble during the last five years. After a description of the clock ensemble, comprising three fountains, FO1, FO2, and FOM, and the newest developments, we review recent studies of several systematic frequency shifts. This includes the distributed cavity phase shift, which we evaluate for the FO1 and FOM fountains, applying the techniques of our recent work on FO2. We also report calculations of the microwave lensing frequency shift for the three fountains, review the status of the blackbody radiation shift, and summarize recent experimental work to control microwave leakage and spurious phase perturbations. We give current accuracy budgets. We also describe several applications in time and frequency metrology: fountain comparisons, calibrations of the international atomic time, secondary representation of the SI second based on the 87Rb hyperfine frequency, absolute measurements of optical frequencies, tests of the T2L2 satellite laser link, and review fundamental physics applications of the LNE-SYRTE fountain ensemble. Finally, we give a summary of the tests of the PHARAO cold atom space clock performed using the FOM transportable fountain.Comment: 19 pages, 12 figures, 5 tables, 126 reference

Domain-specific named entity disambiguation in historical memoirs

This paper presents the results of the extraction of named entities from a collection of historical memoirs about the italian Resistance during the World War II. The methodology followed for the extraction and disambiguation task will be discussed, as well as its evaluation. For the semantic annotations of the dataset, we have developed a pipeline based on established practices for extracting and disambiguating Named Entities. This has been necessary, considering the poor performances of out-of-the-box Named Entity Recognition and Disambiguation (NERD) tools tested in the initial phase of this work.Questo articolo presenta l’attività di estrazione di entità nominate realizzata su una collezione di memorie relative al periodo della Resistenza italiana nella Seconda Guerra Mondiale. Verrà discussa la metodologia sviluppata per il processo di estrazione e disambiguazione delle entità nominate, nonché la sua valutazione. L’implementazione di una metodologia di estrazione e disambiguazione basata su lookup si è resa necessaria in considerazione delle scarse prestazioni dei sistemi di Named Entity Recognition and Disambiguation (NERD), come si evince dalla discussione nella prima parte di questo lavoro

Michela Landi, Per un’organologia poetica. Gli strumenti musicali nella poesia francese romantica e simbolista

Il volume di Michela Landi traccia il percorso degli strumenti musicali nella poesia francese dell’Ottocento, partendo dal simbolismo degli aerofoni e dei cordofoni, associati ora alle idee di cui sono un’amplificazione (com’è il caso delle corde, che lasciano libero corso al fluire della parola), ora a un corpo vile e sedizioso (come i fiati che impediscono la voce). A questa breve premessa, l’autrice fa seguire l’analisi dei vari strumenti, in primis quella del corno. Strumento venatorio, u..

Les Extravagants chez Henri de Régnier: Des personnages en quête de certitudes

À la fin du XIXe siècle, les métamorphoses de la société désorientent les gens, qui cherchent à tout prix à se singulariser. Henri de Régnier, l'un des écrivains plus en vogue à l'époque, présente quelques-unes de ces personnes dans ses romans contemporains. Dans cet article, nous avons décidé de porter notre attention sur l'analyse de deux romans: Le Mariage de minuit (1903) et Le Passé vivant (1905). Dans ces écrits, l'auteur esquisse le portrait de différents types d'extravagants: les dandys, les collectionneurs, les passéistes et les occultistes.In the late nineteenth century, the metamorphosis of society disoriented people who look for being different at any costs. Henri de Régnier, one of the writers most in vogue at the time, describes some of these people in his contemporary novels. This paper focused on the analysis of two novels: The midnight Marriage (1903) and The living Past (1905). In these writings, the author sketches the portrait of various types of extravagant people: dandies, collectors, lovers of the past and the occults