B. Andreini - Academia.edu (original) (raw)

Papers by B. Andreini

Advances in Intelligent Systems and Computing

Air pollution is currently one of the main issues affecting urbanized areas worldwide. Local admi... more Air pollution is currently one of the main issues affecting urbanized areas worldwide. Local administrations monitor these harmful gases by means of reference monitoring stations provided by regional/national environmental protection agencies. These stations, however, have limitations due to coarse spatial coverage of the whole municipality, low time-frequency, and high costs. In this framework, the National Research Council of Italy (CNR-IBE) and the Tuscany Region Environmental Protection Agency (ARPAT) agreed to an initiative to create a low-cost network aimed at monitoring air quality over an Italian urban area. The rural town of Capannori, located in the Tuscany region (Italy), was chosen as a testing area since it lies within a critical area both affected by a variety of emission sources and weather conditions unfavourable to pollutant dispersion. The air quality analysis was carried out by means of several innovative low-cost stations named AIRQino, equipped with sensors for collecting air pollution (PM 2.5 , PM 10 , NO 2 , O 3 , CO, CO 2) and meteorological parameters (air temperature and relative humidity). Concentrations of PM were mainly considered in this work for providing indicative air quality measurements to supplement fixed measurements collected by the official urban monitoring network. This work, still ongoing, has two main objectives: (i) to show the robustness of AIRQino at measuring PM concentrations; (ii) to investigate the PM concentrations dynamics at higher spatial and time scale distribution compared to the reference station.

Urban Climate, 2014

ABSTRACT Abstract In EU, a significant percentage of urban population is exposed to pollutant con... more ABSTRACT Abstract In EU, a significant percentage of urban population is exposed to pollutant concentrations above limit/target values stated by air quality legislation. In Italy, this percentage is even higher: 71% for PM10 (daily limit value), 58% for O3 (target value), and 45% for NO2 (annual limit value). In this paper a 20-year (1993–2012) air quality analysis in the city of Florence (Italy) is reported based on observations from all stations of urban air quality monitoring network. Main atmospheric pollutants have been examined: SO2, CO, NO, NO2, PM10, and O3. Actually, Florence is affected by serious air quality problems, with NO2, O3 and PM10 limit values regularly exceeded in recent years. Trends of annual pollutant concentrations have been analysed to assess the significance of their long-term pattern. Trends of inventory emission data have been related to concentrations through a linear regressive framework to assess the capability of each emission category to control annual concentration trends. As a result, primary pollutants exhibited a significant decrease, while this was poorly significant for secondary species despite remarkable reduction in their precursors emissions. A major role is played by meteorological conditions strongly unfavourable to pollutant dispersion, along with vehicle fleet increase and variation over the years.

Journal of Organometallic Chemistry, 1988

ABSTRACT

The Journal of Organic Chemistry, 1996

The thermodynamics and kinetics of binding of model tripeptides epsilon-N-acetyl-alpha-N-dansyl-L... more The thermodynamics and kinetics of binding of model tripeptides epsilon-N-acetyl-alpha-N-dansyl-L-Lys-D-Ala-D-Ala (ADLAA) or alpha-N,epsilon-N-diacetyl-L-Lys-D-Ala-D-Ala (AALAA) to teicoplanin (1a) and a series of semisynthetic derivatives with (1b-f) or devoid of (2a-g) the glycidic side arms and modified at the terminal amino acids of the peptide backbone have been studied by fluorescence or UV spectroscopy. The binding process is suggested to occur via a two-step mechanism. The first, fast process is likely governed by an electrostatic interaction between the C- and N-termini of the peptide chain of the substrate and of the antibiotic, respectively, while the second slower one, accounts for the formation of the hydrogen bonds responsible of the major contribution to the overall binding energy. The binding constants with all modified derivatives are smaller than that with native teicoplanin. Larger modification of the overall binding constant are observed when the sugar residues are removed and, to a lower extent, when the N-terminus of the peptide chain is acylated. The kinetic process is very little affected by the modifications introduced.

1. Introduzione Il Progetto PIONEER (Paper Industry Operating in Network: an Experiment for Emas ... more 1. Introduzione Il Progetto PIONEER (Paper Industry Operating in Network: an Experiment for Emas Revision), di cui è beneficiaria l'Amministrazione Provinciale di Lucca, è un progetto realizzato nell'ambito del programma comunitario LIFE-Ambiente 2003 in cui l'industria cartaria del ...

Tetrahedron Letters, 1988

... In: G. Wilkinson, FGA Stone and EW Abel, Editors, Comprehensive Organometallic Chemistry 7, P... more ... In: G. Wilkinson, FGA Stone and EW Abel, Editors, Comprehensive Organometallic Chemistry 7, Pergamon Press, Oxford (1982), pp. 515659. Abstract | Chapter | PDF (19189 K) b) TA Blumenkoff and LE Overman, Chem. Rev. 86 (1986), p. 857. ...

Tetrahedron, 1989

On the basis of our observation that (E)-1-bromo-1-alkenes undergo preferentially stereospecific ... more On the basis of our observation that (E)-1-bromo-1-alkenes undergo preferentially stereospecific Pd-catalyzed cross-couplings with a variety of organometallics, in the presence of the corresponding (Z)-stereoisomers, efficient and convenient cliastereoselective procedures have been developed to prepare nearly stereoisomerically pure (E)-1-trimethylsilyl-2-alkenes (4). (E)-ltrimethylsilyl-1-alken-3-ynes (5). (lE, 5E)-l-trimethylsilyl-lJ-alkadien-3-ynes (6). and (lE,3E)-ltrimethylsilyl-1.3~alkadienes (8) from stereoisomeric mixtures of alkenyl bromides. Compounds 5 have been stereoselectively converted into (lE.32)-1-trimethylsilyl-13dienes (7) by selective hydrometallations. followed by hydrolysis. Some synthetic applications of compounds 5-8 have been also examined.

Tetrahedron, 1987

... HIGHLY STEREO AND REGIOSELECTIVE PALLADIUMCATALYZED SYNTHESES OF (3E.5Z), (3E,5E), AND (3Z,5E... more ... HIGHLY STEREO AND REGIOSELECTIVE PALLADIUMCATALYZED SYNTHESES OF (3E.5Z), (3E,5E), AND (3Z,5E)1,3,5UNDECATRIENE Bianca Patrizia ANDREINI, Massimiliano ... R. Rossi, A. Carpita, ML Gaudenzi, Synthesis, 359 ( 1981 ), and references cited therein 12. ...