Vers une poétique du discours dramatique au Moyen Âge. Actes du colloque organisé au Palais Neptune de Toulon les 13 et 14 novembre 2008

Les études critiques sur le langage dramatique ne datent pas d’hier, si l’on en juge par celles de H. Rey-Flaud (1973 et 1980), de J.-Cl. Aubailly (1976) ou de C. Mazouer (1998). Une carence notable d’intérêt semble cependant les affecter, ce que rappellent l’introduction et la conclusion de cet ouvrage. Celles qui se présentent ici, dans les Actes du colloque toulonnais qui réunissait une douzaine de chercheurs français, amé-ricains, japonais et néerlandais, se proposent donc de donner un no..

L’Archive Dionysos : une approche méthodologique à l’iconographie théâtrale

The Dionysos Archive: a Methodological Approach to Theatre Iconography. The article illustrates the Dionysos Digital Archive of TheatricalIconography, created by the research team of the University of Florence directed by Renzo Guardenti. The Dionysos Archive collects more than 22,000 images accompanied by cataloguing files, relating to the history of Performing Arts from Greek theatre to the first decades of the 20th century. The cataloguing of the images contained in the archive is based on criteria aimed at highlighting their theatrical specificity and responds to a historiographic perspective that privileges the visual dimension of the Performing Arts, of which iconographic documentation constitutes a source of primary importance.The Dionysos Archive: a Methodological Approach to Theatre Iconography. The article illustrates the Dionysos Digital Archive of TheatricalIconography, created by the research team of the University of Florence directed by Renzo Guardenti. The Dionysos Archive collects more than 22,000 images accompanied by cataloguing files, relating to the history of Performing Arts from Greek theatre to the first decades of the 20th century. The cataloguing of the images contained in the archive is based on criteria aimed at highlighting their theatrical specificity and responds to a historiographic perspective that privileges the visual dimension of the Performing Arts, of which iconographic documentation constitutes a source of primary importance

Anomalous centrifugal distortion in HDO and spectroscopic data bases

The HDO molecule is important from the atmospheric point of view as it can be used to study the water cycle in the earth atmosphere.footnote{Herbin {em et al., Atmos. Chem. Phys.}~{bf 9} (2009) 9433; and Schneider and Hase, {em Atmos. Chem. Phys.}~{bf 11} (2011) 11207.} It is also interesting from the spectroscopic point of view as it displays an anomalous centrifugal distortion similar to that of the normal species H$_2$O. A model developed to treat the anomalous distortion in HDO should account for the fact that it lacks a two-fold axis of symmetry. A new treatment aimed at the calculation of the rovibrational energy of the HDO molecule and allowing for anomalous centrifugal distortion effects has been developed. It is based on an effective Hamiltonian in which the large amplitude bending $nu_2$ mode and the overall rotation of the molecule are treated simultaneously.footnote{Coudert, Wagner, Birk, Baranov, Lafferty, and Flaud, {em J. Molec. Spectrosc.}~{bf 251} (2008) 339.} Due to the lack of a two-fold axis of symmetry, this effective Hamiltonian contains terms arising from the non-diagonal component of the inertia tensor and from the Coriolis-coupling between the large amplitude bending $nu_2$ mode and the overall rotation of the molecule. This new treatment has been used to perform a line position analysis of a large body of infrared,footnote{Johns, {em J. Opt. Soc. Am. B}~{bf 2} (1985) 1340; Toth, {em J. Molec. Spectrosc.}~{bf 162} (1993) 20; Paso and Horneman, {em J. Opt. Soc. Am. B}~{bf 12} (1995) 1813; and Toth, {em J. Molec. Spectrosc.}~{bf 195} (1999) 73.} microwave,footnote{Messer, De Lucia, and Helminger, {em J. Molec. Spectrosc.}~{bf 105} (1984) 139; and Baskakov {em et al., Opt. Spectrosc.}~{bf 63} (1987) 1016.} and hot water vaporfootnote{Parekunnel {em et al., J. Molec. Spectrosc.}~{bf 210} (2001) 28; and Janca {em et al., J. Molec. Specrosc.}~{bf 219} (2003) 132.} data involving the ground and (010) states up to $J=22$. For these 4413 data, a unitless standard deviation of 1.1 was achieved. A line intensity analysis was also carried out and allowed us to reproduce the strength of 1316 transitions$^c$ with a unitless standard deviation of 1.1. In the talk, the new theoretical approach will be presented. The results of both analyses will be discussed and compared with those of a previous investigation.footnote{Tennyson {em et al., J. Quant. Spectrosc. Radiat. Transfer}~{bf 111} (2010) 2160.} The new spectroscopic data base built will be compared with HITRAN 2012.footnote{Rothman {em et al., J. Quant. Spectrosc. Radiat. Transfer}~{bf 130} (2013) 4.

FIRST HIGH RESOLUTION IR STUDY OF THE ν14 (A') A-TYPE BAND NEAR 421.847 cm−1OF 2-13C-PROPENE

This is is the first high resolution IR study of any band of the 2-$^{13}$C-propene species. There have been only two previous high resolution studies of vibration-rotation bands of the normal species.footnote{Ainetschian, Fraser, Ortigoso & Pate, J. Chem. Phys. textbf{100}, 729 ff. (1994); Lafferty, Flaud & Herman, J. Mol. Struct. textbf{780-781}, 65 ff. (2006).} The band examined here is the nub{14} (A') CCC skeletal bending near 421.847 wn which has an A-Type asymmetric rotor structure. The spectra were recorded on the FTS at the Far-IR beamline of the Canadian Light Source with a resolution of $Delta$$nu$ = 0.0009 wn. We have assigned and fitted around 2200 transitions and determined ground and upper state rotational constants. Lines with J up to 49 and K up to 12 were included. The subbands with K greater than 12 were perturbed and show torsional splittings that vary from small to extremely large. The fitting was done with the PGOPHER program of Colin Western.footnote{Western, J. Quant. Spectrosc. Rad. Transf. textbf{186}, 221 ff. (2017).} The GS constants are in good agreement with the MW constants reported recently by Craig, Groner and co-workers.footnote{Paper M109, 71st ISMS Symposium (2016); J. Mol. Spectrosc. textbf{328}, 1-6 (2016).

GLOBAL ANALYSIS OF THE RADICAL ROTATIONAL, VIBRATIONAL AND ELECTRONIC TRANSITIONS

The \ce{NH2} radical, first observed by Herzberg and Ramsay,\footnote{Herzberg and Ramsay, {\em J.\ Chem.\ Phys.}~{\bf 20} (1952) 347} is dominated by a strong Renner-Teller effect\footnote{Dressler and Ramsay, {\em Phil.\ Trans.\ R.\ Soc.\ A}~{\bf 25} (1959) 553} giving rise to two electronic states: a bent \tilde{X}\, ^2B_1 ground state and a quasi-linear \tilde{A}\, ^2A_1 excited state. The \ce{NH2} radical has been the subject of numerous high-resolution investigations and its rotational, vibrational, and electronic transitions\footnote{\label{refs}Hadj Bachir, Huet, Destombes, and Vervloet, {\em J.\ Molec.\ Spectrosc.}~{\bf 193} (1999) 326; McKellar, Vervloet, Burkholder, and Howard, {\em ibid.}~{\bf142} (1990) 319; Morino and Kawaguchi, {\em ibid.}~{\bf 182} (1997) 428; and Martin-Drumel, Pirali, and Vervloet, {\em J.\ Phys.\ Chem.\ A}~{\bf 118} (2014) 1331} have been measured. In the most recent investigation,\textsuperscript{$c$} a value of the rotational quantum number $N$ as large as 26 could be reached and the line position analysis revealed that, even in the \tilde{X}\, ^2B_1 ground electronic state, an anomalous centrifugal distortion occurs and originates from the strong coupling between the overall rotation and the bending $\nu_2$ mode, as in the case of the water molecule.\footnote{Camy-Peyret and Flaud, {\em Molec.\ Phys.}~{\bf 32} (1976) 523} Two theoretical approaches accounting for the Renner-Teller effect are setup to compute the rovibronic energy levels of \ce{NH2}. The first one is an effective approach in which the large amplitude bending mode and the overall rotation are treated simultaneously.\footnote{Coudert, Gans, Garcia, and Loison, {\em J. Chem. Phys.}~{\bf 148} (2018) 054302} The second one is an exact approach, based on a tridimensional potential energy surface, in which all three vibrational modes are considered in addition to the overall rotation.\footnote{\label{moi}Coudert, Gans, Holzmeier, Loison, Garcia, Alcaraz, Lopes, and R\"oder, {\em J.\ Chem.\ Phys.}~{\bf 149} (2018) 224304} In the talk, both approaches will be tested fitting experimental high-resolution data pertaining to the \ce{NH2} radical. The first approach will be applied to data involving the ground and (010) vibrational states. The second approach should allow us to treat any vibrational states and to adjust the tridimensional potential energy surface of the radical.\footnote{Jensen, Odaka, Kraemer, Hirano and Bunker, {\em Spectrochim.\ Acta Part A}~{\bf 58} (2002) 763

Central Line Policy Updates

The policy changes reflect the current guidelines and standards used to prevent central lines and associated bloodstream infections and its complications.https://digitalcommons.centracare.com/nursing_posters/1090/thumbnail.jp

FIRST HIGH RESOLUTION IR SPECTRA OF 2,2-D2-PROPANE. THE ν15 (B1) A-TYPE BAND NEAR 954.709 cm−1. DETERMINATION OF GROUND AND UPPER STATE CONSTANTS.

As part of our project on the study of isotopologues of propane we have taken the spectra of the 2-D and 2,2-D$_2$ substituted species. There have been no studies of these species since the early IR studies. footnote{Friedman & Turkevich, J. Chem. Phys. textbf{17}, 1012 ff. (1949); McMurry, Thornton & Condon, J. Chem. Phys. textbf{17}, 918 ff. (1949).} footnote{McMurry & Thornton, J. Chem. Phys. textbf{19}, 1014 ff.(1951).} footnote{Gayles & King, Spectrochim. Acta textbf{21}, 543 ff.(1965).} footnote{Kondo & Saeki, Spectrochim. Acta textbf{29A}, 735 ff. (1973).} _x000d_ _x000d_ We recorded high resolution ($Delta$$nu$ = 0.0009 wn) FTS data on the Canadian Light Source Far-IR beamline. _x000d_ The spectra of all bands of both species in the region examined (500 - 1250 wn) show torsionally perturbed lines, all but one band appearing globally perturbed. Virtually all bands were not amenable to analysis at present except for the nub{15} (B$_{1}$) A-type band centered at 954.709 wn. One can still see a few perturbed lines with torsional components but overall most lines were single and could be readily assigned using traditional methods. The spectrum is modelled well using PGOPHER.footnote{Western, J. Quant. Spectrosc. Rad. Transf. textbf{186}, 221 ff. (2017).} No MW determined GS constants were available so we have analyzed about 3500 levels to determine both ground state and upper state rotational constants. _x000d_ _x000d_ _x000d

FIRST HIGH RESOLUTION IR SPECTRA OF 1-13C-PROPANE. THE ν9 B-TYPE BAND NEAR 366.404 cm−1AND THE ν26 C-TYPE BAND NEAR 748.470 cm−1. DETERMINATION OF GROUND AND UPPER STATE CONSTANTS.

We report in this talk on the first high resolution IR spectra ($Delta$$nu$ = 0.0009 wn) of the 1-$^{13}$C-Propane isotopologue. Spectra were taken on the Bruker FTS instrument on the Far-IR beamline at the Canadian National Synchrotron (CLS) located at the University of Saskatchewan. The nub{9} B-type band centered near 366.404 wn _x000d_ appears unperturbed and lines were assigned up to K = 17 and J = 50. Since the 1960 MW study of Lidefootnote{Lide, J. Chem. Phys. textbf{33}, p. 1514 ff. (1960)} only used 6 J lines of K = 0 we had to use GSCD analyses to determine a fuller set of molecular constants for this molecule. _x000d_ Since normal propane has been detected using the nub{26} C-type band in Titan and other astrophysical objects our main focus was on the analagous bands for the both the 1-$^{13}$C and 2-$^{13}$C isotopologues. Assigned lines up to K = 17, J = 50 in nub{26} were analyzed with GSCD to independently obtain ground state rotational constants. These were consistent with those obtained from the nub{9} analysis. Upper state constants were also determined that reproduce the vast majority of this band. As in the normal and 2-$^{13}$C species a Coriolis resonance with the 2nub{9} state causes lines of most K levels above 15 to be shifted.footnote{Flaud, Kwabia Tchana, Lafferty & Nixon, Mol. Phys. textbf{108}, p. 699 ff. (2010)} We did not have enough sample available at the time of these experiments to be able to record the 2nub{9} - nub{9} hot band transitions in the low frequency study of nub{9}. _x000d

FIRST HIGH RESOLUTION ANALYSIS OF THE _21 BAND OF PROPANE AT 921.4 cm_1: EVIDENCE OF LARGE-AMPLITUDE-MOTION TUNNELLING EFFECTS

A high resolution (0.0015 wn) IR spectrum of propane, chem{C_3H_8}, has been recorded with synchrotron radiation at the French light source facility at SOLEIL coupled to a Bruker IFS-125 Fourier transform spectrometer. A preliminary analysis of the $nu_{21}$ fundamental band ($B_{1}$, CH$_{3}$ rock) near 921.4 wn reveals that the rotational energy levels of 21$_{1}$ are split by interactions with the internal rotations of the methyl groups. Conventional analysis of this $A$-type band yielded band centers at 921.3724(38), 921.3821(33) and 921.3913(44) wn for the $AA$, $EE$ and $AE+EA$ tunneling splitting components, respectively.footnote{A. Perrin et al., submitted to $J. Mol. Spectrosc.$} These torsional splittings most probably are due to anharmonic and/or Coriolis resonance coupling with nearby highly excited states of both internal rotations of the methyl groups. In addition, several vibrational-rotational resonances were observed that affect the torsional components in different ways. The analysis of the $B$-type band near 870 wn ($nu_{8}$, sym. C-C stretch) which also contains split rovibrational transitions due to internal rotation is in progress. It is performed by using the effective rotational Hamiltonian method ERHAMfootnote{P Groner, $J. Chem. Phys.$ 107 (1997) 4483; $J. Mol. Spectrosc.$ 278 (2012) 52.} with a code that allows prediction and least-squares fitting of such vibration-rotation spectra

FIRST HIGH RESOLUTION IR SPECTRA OF 2-D1-PROPANE. THE ν9 (A1) B-TYPE BAND NEAR 367.2389 cm−1.

This is a further report in a project to record high resolution IR data of the $^{13}$C and D substituted isotopologues of propane (see talks FA04, FA05 and TK08 at 2017 ISMS). Initially in CLS Cycle 23 (Jan-Jun, 2015) we recorded spectra of the \nub{26} (B$_{2}$) C-Type band whose corresponding band in C$_{3}$H$_{8}$ is observed in Titan's Atmosphere.That band and others seen in the 550-950 \wn region were too perturbed by complex torsional splittings for analysis at this time. In this talk will give details on the first high resolution ($\Delta$$\nu$ = 0.00096 \wn) IR investigation of the spectrum in the Far-IR region. We recorded spectra during Cycle 25 (Jan-Jun, 2017) of the \nub{9} (A$_{1}$) CCC skeletal bending mode near 367.2389 \wn. This has a B-type band structure and appears unperturbed. Spectra were recorded at pressures of 0.014, 0.056, 3.995 \& 8.087 Torr in a 72m optical path at room temperature. We used the Bruker IFS-125HR on the Far-IR beamline of the CLS. The spectra were assigned both traditionally and with the aid of the PGOPHER program of Colin Western.\footnote{C. Western, J. Quant. Spectrosc. \& Rad. Transf. \textbf{186}, 221 ff. (2017).} We were able to assign over 8100 lines with up to K = 35 and J = 60 using both the 4 and 8 Torr data sets. The only available MW data on this molecule are the seven K = 0, J = 0-6 lines from Lide.\footnote{Lide, J.Chem. Phys. \textbf{33}, p.1514ff. (1960).}. We therefore had to use the present data to determine a new set of ground state constants that included centrifugal distortion terms for this molecule. We compare these experimentally determined values with both Lide's A, B, C values and the recent calculated \textit{ab initio} values of Villa, Senent \& Carvajal.\footnote{Villa, Senent \& Carvajal, PCCP \textbf{15}, 10258 (2013).} Upper state constants have also been been derived that provide a good simulation of the observed spectra. The hope is that this data will be useful in identifying isotopic propane lines in Titan and other astrophysical objects