3,745 research outputs found
Van der Waals-like phase transition from holographic entanglement entropy in Lorentz breaking massive gravity
In this paper, phase transition of AdS black holes in lorentz breaking
massive gravity has been studied in the framework of holography. We find that
there is a first order phase transition(FPT) and second order phase
transition(SPT) both in Bekenstein-Hawking entropy(BHE)-temperature plane and
holographic entanglement entropy(HEE)-temperature plane. Furthermore, for the
FPT, the equal area law is checked and for the SPT, the critical exponent of
the heat capacity is also computed. Our results confirm that the phase
structure of HEE is similar to that of BHE in lorentz breaking massive gravity,
which implies that HEE and BHE have some potential underlying relationship.Comment: 10 pages, 10 figure
Food waste within eco-friendly households: modelling the factors that have an impact on food waste levels
Purpose: The purpose of this study is to identify the key factors that explain variances in levels of food waste in eco-friendly households. Despite the growing literature on food waste, there is a substantial lack of knowledge on the determinants of food waste in eco-friendly households.
Methodology: The findings are based on a quantitative survey of 334 respondents. Frequency distribution and the ordered probit modelling and marginal effect analysis are used to analyse the survey data.
Findings: Most of the eco-friendly households report food wasting from 0% (no food wasted at all) to 20%. In this survey, affluent young males, who have young children and who frequently eat outside of the home, are found to be more likely to waste food than others. Furthermore, older females who are anxious about the cost of food waste, people who can distinguish between 'use by' and 'best before' dates, and who make an effort to reduce food waste, are found to be less likely to waste food. Marginal effects are presented since they show the impact of a change in an explanatory variable on the predicted probabilities of wasting food. At high levels of food waste, knowledge of expiry dates appears to be the only discriminatory variable, and at negligible or low levels of food waste, the presence of young children in the household seems to be a crucial predictor for food waste.
Policy implications: Research on factors that explain variances in levels of food waste is crucial if modern society is to make a transition to more sustainable lifestyles
Focal Spot, Winter 1983/84
https://digitalcommons.wustl.edu/focal_spot_archives/1036/thumbnail.jp
The impact of economic, social and environmental factors on trip satisfaction and the likelihood of visitors returning
Tourism is vital to the economy of many regions; however visitor numbers in some are stagnating. Using a novel approach, this case study of the Great Barrier Reef explores and quantifies risks to visitor numbers, utilising tourist survey data supplemented by objective data from secondary sources. Economic, social and environmental factors affecting trip satisfaction are identified, which itself is found to affect the likelihood of a tourist returning; the impact of changes on trip satisfaction and on repeat visits is then estimated. Linkages between tourism and other industries are clearly demonstrated; increased construction work, decreased water clarity and decreased perceptions of tourist safety are all estimated to significantly reduce likelihood of repeat visits and hence impact tourist revenues, placing the financial viability of the industry at risk. Future development within the region should be evaluated holistically, rather than industries such as tourism, construction, agriculture etc. each being developed in isolation
- …