Search results for "Observed"
showing 10 items of 56 documents
Tourism statistics for local planning: challenges and proposals
2011
The increasing importance of tourism in many urban and rural areas has called into question the adequacy of official statistical sources for specific local needs. However, several problems affect actual official statistics in tourism which make them inappropriate for destination management purposes. The present work starts from a simple question about the actual number of tourists in a given destination by formalizing the answer through a conceptual model which links official statistics available at local level with the tourism trips undertaken in the destination considered. The relevance of several parameters and quantities is highlighted and some proposals for their estimate are made. The…
Multi-mycotoxin determination in barley and derived products from Tunisia and estimation of their dietary intake.
2017
A study on raw barley and derived products (barley soup and beers) was carried out to determine the natural presence of twenty-four mycotoxins by both liquid chromatography and gas chromatography coupled to tandem mass spectrometry (MS/MS). The developed multi-mycotoxin procedure was based on both SLE and QuEChERS extraction steps. 66% of analyzed samples presented mycotoxin contamination and only one sample, which was soup of barley (6 ng/g), exceeded the maximum level (ML) established by EU for OTA (5 ng/g). Raw barley was the most contaminated matrix (62%), which concentrations ranged from 1.70 to 287.13 ng/g) and type of detected mycotoxins (DON, 15AcDON, NEO, NIV, HT2, FB1, OTA, ENA, E…
Unobserved Tourism and Observable On-line Tourism Accommodation Supply
2013
Turismo incoming in Sicilia: criticità e primi risultati di un’indagine ad hoc
2011
Self-confidence predicts entrepreneurship and entrepreneurial success
2023
EXPERIMENTAL INVESTIGATION OF DILUTE SOLID-LIQUID SUSPENSION IN AN UNBAFFLED STIRRED VESSELS BY A NOVEL PULSED LASER BASED IMAGE ANALYSIS TECHNIQUE
2009
The availability of experimental information on solid distribution inside stirred tanks is a topic of great importance in several industrial applications. The measurement of solid particle distribution in turbulent multiphase flow is not simple and the development of suitable measurement techniques is still in progress. In this work a novel non-intrusive technique for measuring particle concentration fields in solid-liquid systems is employed. The technique makes use of a laser sheet, a high sensitivity digital camera for image acquisition and a Matlab procedure for post-processing the acquired images. Experimental data are here obtained for the case of an unbaffled stirred tank. Stable tor…
Application of the threshold of toxicological concern (TTC) to the safety evaluation of cosmetic ingredients.
2007
The threshold of toxicological concern (TTC) has been used for the safety assessment of packaging migrants and flavouring agents that occur in food. The approach compares the estimated oral intake with a TTC value derived from chronic oral toxicity data for structurally-related compounds. Application of the TTC approach to cosmetic ingredients and impurities requires consideration of whether route-dependent differences in first-pass metabolism could affect the applicability of TTC values derived from oral data to the topical route. The physicochemical characteristics of the chemical and the pattern of cosmetic use would affect the long-term average internal dose that is compared with the re…
Il diportismo nautico e le attività economiche in Sardegna
2013
Operating in a complex globalized world, tourism destinations are continuously challenged to improve their performance in order to stay competitive in a dynamic environment they have to identify new potential markets, to develop networks, clusters and new products. Today the current forms of tourims that are emerging request to spend leisure time as actively as possible and the development of niche tourism with these characteristics can represent a sustainable development strategy for destinations ...