Search results for " NIR"
showing 10 items of 16 documents
Changes in soil mineral N content and abundances of bacterial communities involved in N reactions under laboratory conditions as predictors of soil N…
2016
Proper management of soil fertility requires specific tools for predicting N availability for crops as a consequence of different fertilization strategies. More information is required, especially for organic fertilizers, depending on their mineralization rate, composition, and processing (i.e., fresh or composted manure), as well as their effects on soil properties. Laboratory soil incubations were used as a proxy for understanding plant–soil N dynamics under field conditions. Chemical and microbiological measurements as contents of mineral N, potentially mineralizable N and the abundance of key genes regulating the overall N cycle were used as predictors of mineral N availability to maize…
A Curcumin-BODIPY Dyad and Its Silica Hybrid as NIR Bioimaging Probes
2022
In this paper we describe the synthesis of a novel bichromophoric system in which an efficient photoinduced intercomponent energy transfer process is active. The dyad consists of one subunit of curcumin and one of BODIPY and is able to emit in the far-red region, offering a large Stokes shift, capable of limiting light scattering processes for applications in microscopy. The system has been encapsulated in MCM-41 nanoparticles with dimensions between 50 and 80 nm. Both the molecular dyad and individual subunits were tested with different cell lines to study their effective applicability in bioimaging. MCM-41 nanoparticles showed no reduction in cell viability, indicating their biocompatibil…
Accomplishing the requirements within the new decree 159/2016: Comparative study of eddy currents induced in a human phantom moving near different MR…
2019
Purpose. In order to provide adequate risk-reducing procedures for MRI personnel (radiographers, anaesthetists, physicists, nurses, technicians, cleaners, etc.), different studies have been developed in the past years. Further to those, in the present work risk assessment concerned with currents induced by non-uniform static magnetic fields in MRI operators performing different tasks in prox imity of the scanner has been investigated across a set of different 1.5 T MRI scanners. Methods. The first step has been to empirically map the magnetic field around the different scanners and to select a proper adult human body as a heterogeneous volume conductor model. Then, upon observing the way ta…
Moving inside a MRI room: A risk assessment analysis
2018
Moving across the stray magnetic field generated by a medical magnetic resonance imaging system may induce electric stimulation near or even beyond the threshold of physiological significance and adequate risk-reducing procedures for the involved personnel may be re quired. With this in mind, a set of different scanners has been analysed. Results suggest that a 1.5 T magnet may be expected in general to comply with the requirements of the currently in force European Electromagnetic Fields Directive for ensuring the health and safety of workers.
New amphiphilic copolymers based on a poly(hydroxyethylaspartamide): coating of Au nanostars to obtain antimicrobial photothermal/delivering systems …
2012
Evoluzione delle caratteristiche qualitative dei frutti di pesco lungo la filiera con l’ausilio del DA-Meter.
2011
Utilizzo del DA-Meter nella valutazione qualitativa dei frutti di pesco in Sicilia
2011
Applicazione di Tecniche non distruttive per la valutazione delle proprietà fisico-meccaniche dei frutti
2017
Negli ultimi decenni, la richiesta e il consumo crescente di prodotti alimentari di qualità hanno motivato la ricerca e lo sviluppo di nuove soluzioni tecnologiche in campo agroalimentare. L’applicazione di metodi e sistemi tecnologicamente avanzati ha garantito il raggiungimento, lungo tutta la filiera, di elevati standard di qualità e di sicurezza degli alimenti. In campo ortofrutticolo è di fondamentale importanza, soprattutto nella fase di postraccolta, monitorare lo stato di salute dei prodotti deperibili trasportati poiché diversi fattori influenzano le caratteristiche organolettiche e nutrizionali dei prodotti. Oltre alle tecniche di spettroscopia NIR, il cui utilizzo nel settore nel…
Giuseppina Nirchio
2013
La voce è dedicata alla figura di Giuseppina Nirchio, docente incaricata di sociologia del diritto presso l'Università degli studi di Palermo