Modeling Streambank and Artificial Gravel Deposit Erosion for Sediment Replenishment

ISSN:2073-444

Il modello di organizzazione, gestione e controllo di cui al D.LGS. 231/2001

Profili metodologici e soluzioni operative. Aggiornato al D.Lgs. 9 aprile 2008, n.81 T.U. in materia di salute e sicurezza nei luoghi di lavor

Report on the Third ESCA TTS workshop evaluation procedure.

This paper provides a description and rationale for the EvaluationProcedure taking place at the Workshop. The procedure has threegoals. First, setting a precedent of providing conference participantswith a more candid and thorough picture of the quality of current TTS systems than is usually available in the form of prepared conference demonstrations. Second, providing results that will be informative for TTS systems developers. Third, stimulating a discussion and contributing to a consensus building process on text-to-speech synthesis evaluation

Hamodynamische Verbesserung wahrend Therapie mit intravaskularem Oxygenator (IVOX). [Hemodynamic improvement during therapy using the intravascular oxygenator (IVOX)]

The intravascular oxygenator (IVOX) is a new device which is implanted in the vena cava sup. and inf. where it oxygenates the blood and removes CO2. We report on its successful use in a young patient with severe pneumonia. This 21-year-old female was admitted to hospital with acute respiratory distress due to pneumococcal pneumonia and sepsis following chickenpox. Considering the rapidly progressive course with severe hypoxia and shock, PaO2/PaCO2 values of 6.5/6.4 kPa on mechanical ventilation with an FiO2 of 1.0 and a PEEP of 13 mbar, we decided to implant an intravascular oxygenator. Besides rapid improvement of oxygenation, we observed remarkable recovery of cardiovascular function such as an increase in mean arterial pressure and mixed-venous saturation, while the dose of vasopressors could be decreased. The intravascular oxygenator was removed without problems after 29 days of continuous use, when pulmonary function allowed an FiO2 of 0.45. The patient was discharged from the intensive care unit after 99 days in a good neurological and stable cardiovascular state

Reaction of metallated tert-butyl(phenyl)phosphane oxide with electrophiles as a route to functionalized tertiary phosphane oxides: Alkylation reactions

P-Chiral tertiary phosphane oxides have been prepared from each of the secondary phosphane oxides racemic 1, (S-p)-(-)-4 and (R-p)-(+)-tert-butylphenylphosphane oxide (5) by lithiation with LDA or nBuLi, or sodiation with sodium hydride, in THF, and then by treatment with a series of primary alkyl halides. Doubly P-chiral ditertiary bis(phosphane oxides) are also obtained from these metallated secondary phosphane oxides by treatment with electrophiles based on straight-chain, tartrate-derived, and bishalomethylarene dihalides. In general, the bis-phosphane oxides are obtained in good yields. However, when the alpha,omega-dihalide bears an embedded heteroatom (O or Si), yields are diminished. The enantiomeric purity of each of the products was assessed through admixture with (R-p)- and (S-p)-tert-butyl(phenyl)phosphanylthioic acids and measurement of the tert-butyl resonances in the H-1-NMR spectra. In all cases, the act of metallation of the enantiomerically pure secondary phosphane oxide followed by its alkylation is not accompanied by detectable racemization. This method for preparing P-chiral tertiary phosphane oxides is therefore more straightforward than those described previously