Search results for "IMPR"

Application of molecularly imprinted polymers in analytical chiral separations and analysis

2018

Over the last two decades the process of development and application of a new types of molecular imprinted polymer (MIP) sorbents in the field of analytical chemistry have been widely described in the literature. One of the new trends in analytical chemistry practice is the use of new types of MIP sorbents as specific sorption materials constituting the stationary phase in advanced separation techniques. The following review paper contains comprehensive information about the application of a specific and well defined MIP sorbents (with the data base in the paper about the reagents used in MIP preparation process) as stationary phases in separation techniques including high performance liqui…

Recent Advances in Sample Preparation for Pesticide Analysis

2012

Much progress has been made in pesticide analysis in the past decade. During this time, hyphenated techniques involving highly efficient separation with sensitive mass spectrometric detection have become the methods of choice. Even with such powerful instrumental techniques, a demanding task in pesticide residue analysis is the development of multiresidue methods for the determination of pesticides in air, water, soil, sediment, biota, and food. This chapter summarizes the analytical characteristics of the different methods of sample preparation for the determination of pesticide residues in a variety of food matrices, and surveys their recent applications in combination with gas chromatogr…

Capitale sociale e produttività nelle province italiane: un approccio multilivello

2014

Collaborare per crescere. La cooperazione tra imprese al Nord e al Sud

2014

Dove si diffonde un sistema di relazioni cooperative, le imprese sperimentano una più elevata crescita economica, entrano con maggiore successo nei mercati internazionali, realizzano innovazioni che si diffondono rapidamente sui mercati. Queste tendenze sono state spesso richiamate soprattutto in questi anni di grave crisi economica e vengono confermate anche dal Rapporto della Fondazione RES 2013 curato da Pier Francesco Asso e Emmanuele Pavolini. Ma a che cosa è legata la propensione delle imprese a cooperare? Perché la collaborazione è così "difficile"? Esistono differenze territoriali importanti che distinguono le imprese del Sud da quelle del Nord? Quali sono le attitudini a collaborar…

Fiducia, Partecipazione a reti e performance economica

2014

Nell'ambito di una ricerca originale su un campione rappresentativo di imprese operanti in un numero selezionato di settori, è stato analizzato il ruolo della fiducia interpersonale e della fiducia istituzionale nel determinare una maggiore o minore propensione a collaborare; inoltre è stata approfondita la relazione fra partecipazione a reti (formali e informali) e performance economica, distinguendo anche il caso in cui le reti sono il risultato di legami forti di tipo parentale o amicale

Modelli di collaborazione fra imprese e dotazioni di capitale sociale

2014

Dopo aver esposto le principali linee di ricerca sul capitale sociale, ci si sofferma ad analizzare i principali risultati di una ricerca originale sulle imprese, dedicando particolare attenzione al ruolo dei costi di transazione e alla relazione fra cooperazione e performance economica

Prediction of cardiovascular events with traditional risk equations and total plaque area of carotid atherosclerosis

2021

Abstract A large number of cardiovascular events occur in seemingly healthy individuals. Atherosclerosis imaging can improve the outcome and treatment regime of such subjects. We aim to assess the predictive value of atherosclerosis imaging beyond traditional risk calculators in subjects aged 40–65 years. We compared PROCAM, SCORE and FRAM with carotid ultrasound (total plaque area, TPA) and arterial age (AA) was calculated in subjects without known cardiovascular diseases. Follow-up was obtained by phone or mail. In 2842 subjects (age 50 ± 8, 38% women) 154 (5.4%) cardiovascular events occurred (ASCVD: 41 myocardial infarctions, 16 strokes or TIA, 21 CABG, 41 PTCA, 35 coronary artery disea…

Consumer attitude toward using smart shopping carts: a comparative analysis of Italian and Croatian consumer attitudes

2016

This paper aims to explore consumer attitudes toward using smart shopping cart, considering country of origin, gender, age, and intentions to use smart shopping carts while purchasing. Moreover, it investigates the influence of extracted factors on consumers' attitudes toward using smart shopping carts and the users' levels of digital competence. The data was collected through survey questionnaires using a purposive sample of 313 Croatian and Italian respondents. To this end, we applied statistical methodologies such as binary logistic regression, factor analysis, and analysis of variance. We found that, compared with Croatians, Italian respondents have a more positive attitude toward using…

"Lettera a Aloisio XIII". La traducción de la "Carta a Luis XIII" de Quevedo en la imprenta siciliana del siglo XVII

2013

Solid-Phase Extraction and Clean-Up Procedures in Pharmaceutical Analysis

2012

Solid-phase extraction (SPE) using small cartridges filled with sorbents of a small particle size has rapidly established itself as an important sample clean-up technique. It has prospered at the expense of liquid-liquid extraction (LLE), which is considered labor intensive and frequently plagued by problems, such as emulsion formation and use of large volumes of hazardous solvents. A remarkable characteristic of SPE is its easy adaptation to on-line mode by column-switching techniques; switching can be effected manually or by automated controllers. The same analyte/sorbent interactions that are exploited in liquid chromatography (LC) are of use in SPE, but particle sizes employed are great…