Search results for "ISM [radio lines]"
showing 10 items of 1018 documents
Effects of hydrazyl group containing drugs on leucocyte functions: an immunoregulatory model for the hydralazine-induced lupus-like syndrome.
1985
Isoniazid (INH) and hydralazine (HYD) are transglutaminase (TGase, E.C.2.3.2.13.) substrates containing catalytically recruitable hydrazyl groups. Since they can be expected to inhibit TGase-mediated cell functions by competing with physiological substrates, their effect upon allogeneically and lectin-induced proliferation of mononucleocytes and upon zymosan-induced chemiluminescence of phagocytes was studied. Both compounds inhibited chemiluminescence in a dose-dependent manner. ID50 of HYD was consistently below 20 microM, while that of INH was above 120 microM. Proliferation of immunocompetent cells was suppressed by HYD with an ID50 of 60 microM, INH was inhibitory only above 5000 micro…
Tourism and Communication on the Internet: the Case of the Italian Wine and Food Roads Web Sites Quality
2007
Indirect Measurement of Unobserved Tourism. The Municipal Solid Waste (MSW) as an Indicator of Human Pressure
2013
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…
L’industria dei viaggi e del turismo in Italia: aspetti definitori, dinamiche intersettoriali ed effetti della crisi
2022
The travel and tourism industry has an increasingly central role in countries’ economies due to its ability to contribute significantly to the production of various economic sectors. Despite this growing importance, the literature’s attention to analysing the productive articulations that characterise appears very limited to date. This article presents an overview of the primary lit- erature on the travel and tourism industry and then conducts a quantitative analysis through the Satellite Accounting of Tourism in Italy. Tourism consumption and production in the years 2010, 2015, 2017 and 2019 are compared, and then the effect of the pandemic is analysed by compar- ing the data in 2020. Fina…
Sustainability and tourist flow networks: a mean field bi-level optimization approach
The widespread acknowledgement of tourism as a strategic pillar for economic growth and development has boosted competitiveness among tourist destinations. This concept has been greatly emphasized during the current COVID-19 pandemic crisis. Nevertheless, the massive presence of tourists imposes the challenge of adopting sustainable tourism practices to balance economic prosperity opportunities with potential threats to the environment and local communities. There are many definitions for sustainability, but the most effective one is ``the capacity to endure'' [Emel et al, 1997]: from an economic perspective this leads to find an equilibrium between short and long-term objectives so that to…
IJIR Title Page and Table of Contents Vol. 3
2022
IJIR Table of Contents Vol. 2
2021
A Relational Approach to Networks in a Tourism Destination: Business and Family Networks in San Vito Lo Capo, Sicily
2022
This article constructs a relational framework using the principles of the Network Approach to examining the business exchange structure of a tourist destination. Network Analysis is the methodology to analyse the metrics of collaboration and cooperation among destination companies. The model was applied in a remote tourist destination named San Vito Lo Capo on the island of Sicily, where tourism has significantly expanded in the last twenty years. The focus is on how groupings of small companies within family relations can govern and be responsible for tourism destination cooperation. As the main result, the existence was identified, of a relational framework where three clusters of famili…
Seasonality and Tourism
2017
Seasonality is one of the key distinctive features of tourism-related phenomena. Seasonality in tourism is characterized by regular and rather predictable changes over time of tourismrelated aggregates (arrivals and overnight stays in accommodation establishments, hotels’ occupancy rates, traffic on highways and airports, lodging and transportation prices, etc.), which recur every year. Seasonal fluctuations in travel and tourism demand are relevant both for the travel and tourism industries and for destination managers. Causes, impacts, and policy implications are described as well as measurement challenges and proposals.