Search results for "CA [SR]"
showing 10 items of 2784 documents
The Analysis of Large-scale Retail Trade Groups Customer Satisfaction: A Comparison Between CAPI and PAPI Data Collection Methods
2008
Computer assisted personal interviewing (CAPI) and similar electronic survey data collection methods seem to improve both technical and economical efficiency and data quality. Compared to traditional paper and pencil interviewing (PAPI) CAPI is affected by some shortcomings yet. At the end, the selection of one among many data collection methods has to be justified in terms of a profitable ratio between scientific and organizational costs and benefits. In this paper we discuss the (quasi)experimental design arranged in order to assess the differential effects of face-to-face paper and computer assisted interviewing in terms of efficacy, efficiency and the production of non-sampling errors. …
CAPI Versus PAPI and The Production of Some Non-Sampling Errors
2009
The study aims at assessing the differential effects of face-to-face paper and computer assisted interviewing in terms of efficacy, efficiency and the production of non-sampling errors. The research ground is constituted by the analysis of the customer satisfaction of a large-scale retail trade group owning many shops in Sicily. The reaction of respondents to paper versus electronic questionnaires is investigated by means of an experimental design in terms of non sampling error amounts.
DOSIMETRIA ESR CON ALANINA PER ADRONTERAPIA CON IONI CARBONIO
2015
La sicurezza del paziente sottoposto a trattamenti terapeutici con radiazioni ionizzanti e il buon esito degli ultimi sono strettamente legati all’ottimizzazione delle procedure di esposizione alle radiazioni ionizzanti. In particolare è fondamentale arrecare il danno minore possibile ai tessuti sani che circondano la neoplasia da trattare. Rispetto ai campi di radiazione convenzionali utilizzati in radioterapia (fotoni), le particelle cariche pesanti (protoni e ioni carbonio) offrono diversi vantaggi quali la bassa dispersione laterale, l’alta efficacia biologica (RBE) nella regione del picco di Bragg ed un profilo di dose caratteristico in profondità del tutto differente da quello dei fot…
Prospero hierae (Hyacinthaceae), a New Species from Marettimo Island (Sicily)
2009
A new species, Prospero hierae C. Brullo, S. Brullo, Giusso, Pavone & Salmeri (Hyacinthaceae), from Island of Marettimo (Egadi Archipelago, Sicily) is described and illustrated. Its chromosome number (2n = 14), leaf anatomy and ecology are examined. This small species with glaucous, adaxially flat leaves is closely related with the taxa belonging to the Prospero autumnale group and, in particular, it shows more affinities with P. corsicum, P. pulchellum and P. minimum.
Alcune osservazioni sugli Enti (pubblici) di ricerca: il loro ruolo e brevi cronache di una devastazione annunciata.
2011
Verranno presentate alcune considerazioni sul ruolo che gli Enti di ricerca dovrebbero (e potrebbero) svolgere nel complesso sistema dell’alta formazione e di quello che ad essa è connesso (dallo sviluppo produttivo al vivere civile). La motivazione di fondo, poi, delle considerazioni che seguono è che la ricerca scientifica può svolgere un ruolo cruciale in tutti questi aspetti in quanto essa è connessa in modo essenziale all’uso di un metodo critico che fa discendere le conclusioni cui essa arriva dalle argomentazioni addotte e non dall’autorità di qualcuno.
The maturity stage of the grass affects milk fatty acids of cows grazing a mountain grassland
2010
International audience; We aimed to quantify the effect of the growth stage of a mountain grassland pasture on the fatty acid (FA) composition of grass and milk. In June (growth) and October (regrowth), a mountain pasture was continuously grazed by six dairy cows in a strip grazing system. During June, the grass C18:3n-3 content decreased while C16:0, c9-C18:1 and C18:2n-6 content increased. During October, the grass FA composition was similar to that observed in the first part of June. During June, milk saturated FA (SFA) content increased while the sum of the trans FA and polyunsaturated FA (PUFA) content decreased, mainly due to the decrease in C18:3n-3 and c9t11-CLA percentages. At the …
Advances in High-Energy-Resolution CdZnTe Linear Array Pixel Detectors with Fast and Low Noise Readout Electronics
2023
Radiation detectors based on Cadmium Zinc Telluride (CZT) compounds are becoming popular solutions thanks to their high detection efficiency, room temperature operation, and to their reliability in compact detection systems for medical, astrophysical, or industrial applications. However, despite a huge effort to improve the technological process, CZT detectors’ full potential has not been completely exploited when both high spatial and energy resolution are required by the application, especially at low energies (<10 keV), limiting their application in energy-resolved photon counting (ERPC) systems. This gap can also be attributed to the lack of dedicated front-end electronics whic…
Valutazione delle possibilità e dei limiti del trattamento palliativo del carcinoma del retto mediante laser Nd-Yag versus colostomia
2002
Effetto del sistema di allevamento e della tecnologia di caseificazione sulla qualità del caciocavallo palermitano.
2011
Effects of livestock system and cheese making technique on the quality of Caciocavallo Palermitano cheese - Caciocavallo Palermitano is a typical stretched curd cheese produced in the Central and Western Sicily. It is traditionally obtained from whole milk of indigenous cows breeds and by the original cheese making technology in which wooden tools, source of inoculum of autochthonous lactic bacteria, are used. Recently, Caciocavallo Palermitano cheese is also obtained in dairy intensive farms of specialized breeds where milk is processed mainly using stainless steel equipment and commercial selected lactic ferments. The aim of this investigation was to verify the influence of cheese making …
Hieracium terraccianoi (Asteraceae), a new species endemic to the Pollino National Park (Southern Italy)
2014
Gristina, Emilio Di, Gottschlich, Günter, Raimondo, Francesco M. (2014): Hieracium terraccianoi (Asteraceae), a new species endemic to the Pollino National Park (Southern Italy). Phytotaxa 188 (1): 55-60, DOI: 10.11646/phytotaxa.188.1.8, URL: http://dx.doi.org/10.11646/phytotaxa.188.1.8