Search results for " assi"
showing 10 items of 676 documents
Design of experiment approach for the optimization of polybrominated diphenyl ethers determination in fine airborne particulate matter by microwave-a…
2015
Abstract A sensitive and selective procedure for the determination of 12 polybrominated diphenyl ethers (BDE-28, BDE-49, BDE-47, BDE-66, BDE-100, BDE-119, BDE-99, BDE-155, BDE-154, BDE-153, BDE-139 and BDE-183) in airbone particulate matter (PM2.5) at trace level has been developed. The proposed method includes extraction PM2.5-bound PBDEs by microwave-assisted extraction (MAE) followed by gel permeation chromatography (GPC) clean-up and determination by GC-MS/MS using a programmed temperature vaporizer (PTV) in large volume injection (LVI) mode to introduce the sample to the chromatographic system. A design of experiment (DoE) approach was used for the optimization of large volume injectio…
PROTOCOLLI ASSISTENZIALI (P.A) PER LA GESTIONE DELLE PATOLOGIE MAGGIORMENTE RAPPRESENTATE AL PS DELL'A.O.U.P. "P. GIACCONE" DI PALERMO
2010
Cost Effective Treatments to Replace Galvanic Processes
2009
Some of the most severe problems in the replacement of galvanic treatment with PVD coatings reside, first of all, in the higher costs of vacuum processes and in the difficulty to coat many 3D small samples. This work describes the results obtained by using energetic deposition vacuum processes, of the family of Ion Plating Plasma Assisted (IPPA), using both thermal and sputtering sources, able to reduce dramatically the duration of deposition process and to eliminate the substrate heating and their pre-cleaning. Regarding the small 3D samples, an innovative structure, named "Ionic Rotarybarrel" is presented. The realised treatments are in the fields of decorative, protective and tribologica…
Il Palazzo delle Assicurazioni Generali: un nuovo modello edilizio di Ernesto Basile nel piano di riforma positivista della Città di Palermo
2017
L’immobile progettato da Ernesto Basile nel 1912 per conto delle Assicurazioni Generali di Venezia ha avuto un ruolo nevralgico nella storia della produzione edilizia e delle dinamiche urbane di Palermo nel tardo periodo della Belle Èpoque. Eretta su un’area ad isolato la fabbrica appena ultimata si imponeva per consistenza stereometrica e, al tempo stesso, per equilibrio compositivo sul limitrofo pregevole contesto edilizio della nascente via Roma. Ad angolo fra le strategiche via Roma e via Cavour il fabbricato delle Assicurazioni Generali di Venezia finì per assumere il ruolo di segnale urbano identificabile come “soglia” dell’attraversamento, proprio tramite via Roma, della città storic…
Palermo vs Panormus
2019
Quando nel settimo secolo a.C. i coloni fenici arrivarono dal mare nel Golfo di Palermo (anticipato, a grande distanza, dalla peculiare forma del Monte Pellegrino), certamente capirono come la valle che si apriva davanti a loro (la cosiddetto Conca d'oro) - ricca di vegetazione, attraversata da corsi d’acqua e protetta dal micidiale vento di Nord / Ovest, il Maestrale - fosse il posto giusto per fondare una nuova città. Le generazioni seguenti continuarono a costruire la città sul promontorio, mantenendo e consolidando l'orientamento Est / Ovest e affidando all'asse principale (il Cassaro) il ruolo, non secondario e fortemente simbolico, di collegare le montagne e il mare attraverso la citt…
An Appeal for Implementing Social Assistance and Welfare Programs for European Children Challenged by Parental Loss
2018
The authors of this commentary, many of whom are part of a working group on social pediatrics supported by some of the European national pediatric societies member of EPA-UNEPSA, conclude that more studies are needed to cross the boundaries between disciplines, for example, looking at the inter-relationship of family life and child health and how parental loss is affecting the micro and macro level of child healthcare service systems. Therefore, this article aims to alert pediatricians to the impact of parental loss on child health and wellbeing. It emphasizes the importance of implementing preventive and social support programs for achieving health promotion and health-protective effects.
Anthropomorphism and social presence in Human–Virtual service assistant interactions: The role of dialog length and attitudes
2022
In this study, we delve into the perceived quality of recommendations provided by AI-based virtual service assistants (VSAs). Specifically, the role of the social presence of VSAs in influencing recommendation perceptions is investigated. We also explore how the social presence of a VSA is formed and how perceived anthropomorphism plays a vital role in shaping social presence and eventually instilling trust in VSAs among consumers. These relationships are examined in the context of online government services. The results indicate that consumer interaction with VSAs - manifesting via perceived anthropomorphism, social presence, dialog length, and attitudes - improves recommendation quality p…
Persona e diritti fondamentali
2009
Green ultrasound-assisted extraction of anthocyanin and phenolic compounds from purple sweet potato using response surface methodology
2016
AbstractResponse surface methodology was used to optimize experimental conditions for ultrasound-assisted extraction of valuable components (anthocyanins and phenolics) from purple sweet potatoes using water as a solvent. The Box-Behnken design was used for optimizing extraction responses of anthocyanin extraction yield, phenolic extraction yield, and specific energy consumption. Conditions to obtain maximal anthocyanin extraction yield, maximal phenolic extraction yield, and minimal specific energy consumption were different; an overall desirability function was used to search for overall optimal conditions: extraction temperature of 68ºC, ultrasonic treatment time of 52 min, and a liquid/…
The electron wavefunction in laser-assisted bremsstrahlung
2003
The active region for emission of radiation by an electron driven by a strong laser field in the proximity of a stationary scattering centre is localized in space and time. It is argued that the extension of this region can be controlled by changing the velocity of the electron, and that information on this extension is contained in the duration and in the spectrum of the emitted radiation pulse.