La tutelle de La Vie mode d’emploi de Georges Perec dans 209 rue Saint-Maur de Ruth Zylberman est-elle ludique ou existentielle ?

Dans cet article, nous examinons quelle est la relation entre l’aspect oulipien de La Vie mode d’emploi (1978) de G. Perec et l’investigation chez R. Zylberman dans son livre 209 rue Saint-Maur Paris Xe, autobiographie d’un immeuble (2020). Si nous nous attardons sur cette comparaison, c’est qu’il existe une torsion entre eux : d’un côté, ce reportage est certes un bel exemple de « littérature d ’investigation », mais il n ’est pas, à la différence des reportages d’obédience perecquienne, sous la domination de « contraintes existentielles » ; de l’autre, il a pour décor un logement collectif, comme c ’est le cas pour le roman de Perec, sans toutefois recourir aux contraintes langagières. Nous démontrons que la tutelle de La Vie mode d’emploi dans le livre de Zylberman est de nature plutôt existentielle mais un tant soit peu teintée de ludisme oulipien

La fonction du savoir imaginaire dans La Vie mode d’emploi de Georges Perec

La Vie mode d’emploi de Georges Perec multiplie les savoirs imaginaires. Si la plupart de ces savoirs existent sous forme de détails fragmentaires, ne formant pas de système cohérent, ils n’en jouent pas moins dans plusieurs chapitres un rôle important en tant que moteurs du récit. Alors, quel est le rôle de ces savoirs dans la stratégie globale de l’écriture du livre ? L’objectif de cet article est de répondre à cette question en considérant plusieurs chapitres dont la diégèse met en scène un savoir particulier. Au terme de nos analyses, il s'avère que les savoirs mis en fiction dans La Vie mode d’emploi – archéologique, ethnographique, pétrochimique, lexicographique, historique et cartographique – peuvent s’interpréter comme autant de métaphores de la conception du roman et des techniques romanesques mises en œuvre par Perec

Alternative preparation and characterization of platinum(II) organometallic dinuclear complexes and oligomers with 3,8-diethynylphenanthroline derivatives

application/pdfjournal articl

Construction of a photoactive supramolecular system based on a platinum(II) bis-acetylide building block incorporated into a ruthenium(II) polypyridyl complex

A new ruthenium(II) polypyridyl-platinum(II) diethynyl triad containing 3-ethynylphenanthroline linked by platinum(II) bis-tributylphosphine organometallics, Ru(II)-Pt(II)-Ru(II), and platinum(II) bis-ethynylphenanthroline complex has been prepared. The ruthenium(II)-metal triads, Ru(II)-M-Ru(II) (M = Pt(II) and Au(I)), showed typical MLCT absorption bands and a lowest energy π-π* absorption involved with the metal perturbation in the 350-500 nm region. Broad emission bands assignable to triplet MLCT transitions were definitely observed in the triads Ru(II)-M-Ru(II), while those of platinum(II) and gold(I) bis-ethynylphenanthroline complexes displayed a phosphorescent band with vibronic progression assignable to the metal-perturbed triplet π-π*(CCphen) transition, which means that the hybrid architecture constructed with Ru(II) polypyridyl and metal bis-acetylide units converts a blue-green metal perturbed π-π* phosphorescence into an orange MLCT-based emission. The transient differential absorption spectra of ruthenium compounds showed the difference of the electron transfer process between [Ru(bipy)(phen)](PF6)2 and triads under the MLCT state. Photophysical data of the triad suggest an efficient energy transfer from the platinum bis-acetylide site to the ruthenium polypyridyl site followed by the supposed charge injection from a ruthenium center to the extended π-conjugated phenanthroline under photo-excitation in this photoactive supramolecular system.application/pdfjournal articl

Crystal structures and single-crystal electron spin resonance spectra of π-π Type molecular complexes of bis(1-methyliminomethyl-2-naphtholato)copper(II)

The donor-acceptor molecular complexes of bis(1-methyliminomethyl-2-naphtholato)copper(II)[CuL2] with 7,7,8,8-tetracyanoquinodimethane (tcnq), tetrachloro-1,4-benzoquinone (tcbq) and 1,3,5-trinitrobenzene (tnb), as well as the parent complex have been subjected to single-crystal X-ray diffraction analysis. The molecular complexes [CuL2]・2tcnq and [CuL2]・2tnb crystallize in the triclinic space group P and [CuL2]・2tcbq crystallizes in the monoclinic space group P21/n, the copper atoms of all complexes being positioned at an inversion centre. The molecular complexes showed a typical π-π type structure consisting of alternately stacked π-electron donor (naphthalene moiety of copper complex) and π-electron acceptor (tcnq, tcbq and tnb) along the c axis (needle axis). The ESR spectrum for a copper(II) doped sample of diamagnetic [NiL2]・2tnb showed simple copper quartet lines due to I=. The X-ray analyses indicated that the donor-acceptor interaction operating along the c axis gives a one-dimensional structure consisting of alternately stacked donor and acceptor molecules, but no distinct two-dimensional interaction.application/pdfjournal articl

The Sedative Effect of Propranolol on Critically Ill Patients: A Case Series

IntroductionRecent studies have examined the effectiveness of alpha-2 adrenergic agonists for controlling delirium and agitation. Propranolol, a non-selective beta-adrenergic antagonist with good penetration of the blood–brain barrier, has not been investigated for this purpose.Materials and methodsWe retrospectively reviewed the medical records of all patients who were prescribed propranolol in our Medical Surgical ICU from January 1, 2010, to December 31, 2013. We recorded the sedation level and daily dose of sedatives, analgesics, and antipsychotics administered each day for 6 days after starting propranolol, and compared them to the day before starting propranolol.ResultsSixty-four patients met inclusion criteria. Thirty-eight episodes met exclusion criteria, leaving 27 patients (31 episodes). The administration of propranolol was associated with significant reductions in fentanyl equivalents (65%, p = 0.009), midazolam equivalents (57%, p = 0.048), propofol (16%, p = 0.009), and haloperidol (44%, p = 0.024) on day 2 after starting propranolol compared with baseline. A stratified analysis showed that these decreases were seen regardless of clinical improvement or deterioration.ConclusionThe use of propranolol was associated with a significant reduction in doses of sedatives and analgesia. Further studies are needed to determine whether propranolol may be a useful adjuvant for managing delirium and agitation in the ICU

Construction of molecular wires based on a gold(I) bis-σ-acetylide building block incorporated into ruthenium(II) polypyridyl complexes

An Ru(II)-Au(I)-Ru(II) triad has been synthesized from [Ru(bpy)2(3-ethynylphenanthroline)]2+ with Au(tht)Cl and characterized by spectroscopic means such as NMR and ESI-MS; the Ru(II)-Au(I)-Ru(II) triad shows an intense emission at 620 nm upon excitation at 360 nm, which suggests an efficient energy transfer from the Au site to Ru sites via extended p-conjugation through the ethynyl units.application/pdfjournal articl

Relation between abnormal synergy and gait in patients after stroke

[Background]The abnormal synergy seen in patients after stroke is considered to limit the ability of these patients. However, in the lower extremity, antigravity torque generation rather than precise movement is needed for functions such as sit-to-stand movement and gait. Therefore, the ability to generate torque may be important either as a primary movement or as an abnormal synergy. We attempted to quantify the torque generation in the lower limb, selectively and as an abnormal synergy, and its relation with gait. [Methods]Selectively generated plantar flexion torque in the ankle and plantar flexion torque secondarily generated accompanying maximal hip extension (i.e., torque generated with abnormal synergy) were measured in subjects after stroke and control subjects. In subjects after stroke, secondary torque generation while controlling hip extension torque as 25%, 50%, and 75% of the maximal hip extension was also measured. The relation of torque generation with the gait speed and timed-up-and go test (TUG) was also analyzed. [Results]In subjects after stroke, there was no difference between the amount of plantar flexion torque generated secondarily and the selectively generated torque, whereas the selective torque was significantly greater in control subjects. Pearson product?moment correlation coefficient analysis revealed that TUG speed is related to secondarily generated torque accompanying maximal hip extension but not with selectively generated torque. [Conclusion] Secondarily generated torque was found to be a factor that affects TUG speed, and the ability to generate torque even through abnormal synergy may help for gait ability in subjects after stroke

Antibiotic-dependent instability of homeostatic plasticity for growth and environmental load

Reducing antibiotic usage in livestock animals has become an urgent issue worldwide to prevent antimicrobial resistance. Here, abuse of chlortetracycline (CTC), a versatile antibacterial agent, on the performance, blood components, fecal microbiota, and organic acid concentration in calves was investigated. Japanese Black calves were fed milk replacer containing CTC at 10 g/kg (CON) or 0 g/kg (EXP). Growth performance was not affected by CTC administration. However, CTC administration altered the correlation between fecal organic acids and bacterial genera. Machine learning methods such as association analysis, linear discriminant analysis, and energy landscape analysis revealed that CTC administration affected according to certain rules the population of various types of fecal bacteria. It is particularly interesting that the population of several methane-producing bacteria was high in the CON, and that of Lachnospiraceae, a butyrate-producing bacteria, was high in the EXP at 60 d of age. Furthermore, statistical causal inference based on machine learning data estimated that CTC treatment affects the entire intestinal environment, inhibiting butyrate production for growth and biological defense, which may be attributed to methanogens in feces. Thus, these observations highlight the multiple harmful impacts of antibiotics on intestinal health and the potential production of greenhouse gas in the calves