Search results
1 – 10 of over 1000Chunlan Li, Jun Wang, Min Liu, Desalegn Yayeh Ayal, Qian Gong, Richa Hu, Shan Yin and Yuhai Bao
Extreme high temperatures are a significant feature of global climate change and have become more frequent and intense in recent years. These pose a significant threat to both…
Abstract
Purpose
Extreme high temperatures are a significant feature of global climate change and have become more frequent and intense in recent years. These pose a significant threat to both human health and economic activity, and thus are receiving increasing research attention. Understanding the hazards posed by extreme high temperatures are important for selecting intervention measures targeted at reducing socioeconomic and environmental damage.
Design/methodology/approach
In this study, detrended fluctuation analysis is used to identify extreme high-temperature events, based on homogenized daily minimum and maximum temperatures from nine meteorological stations in a major grassland region, Hulunbuir, China, over the past 56 years.
Findings
Compared with the commonly used functions, Weibull distribution has been selected to simulate extreme high-temperature scenarios. It has been found that there was an increasing trend of extreme high temperature, and in addition, the probability of its indices increased significantly, with regional differences. The extreme high temperatures in four return periods exhibited an extreme low hazard in the central region of Hulunbuir, and increased from the center to the periphery. With the increased length of the return period, the area of high hazard and extreme high hazard increased. Topography and anomalous atmospheric circulation patterns may be the main factors influencing the occurrence of extreme high temperatures.
Originality/value
These results may contribute to a better insight in the hazard of extreme high temperatures, and facilitate the development of appropriate adaptation and mitigation strategies to cope with the adverse effects.
Details
Keywords
Chiara Bertolin and Elena Sesana
The overall objective of this study is envisaged to provide decision makers with actionable insights and access to multi-risk maps for the most in-danger stave churches (SCs…
Abstract
Purpose
The overall objective of this study is envisaged to provide decision makers with actionable insights and access to multi-risk maps for the most in-danger stave churches (SCs) among the existing 28 churches at high spatial resolution to better understand, reduce and mitigate single- and multi-risk. In addition, the present contribution aims to provide decision makers with some information to face the exacerbation of the risk caused by the expected climate change.
Design/methodology/approach
Material and data collection started with the consultation of the available literature related to: (1) SCs' conservation status, (2) available methodologies suitable in multi-hazard approach and (3) vulnerability leading indicators to consider when dealing with the impact of natural hazards specifically on immovable cultural heritage.
Findings
The paper contributes to a better understanding of place-based vulnerability with local mapping dimension also considering future threats posed by climate change. The results highlight the danger at which the SCs of Røldal, in case of floods, and of Ringebu, Torpo and Øye, in case of landslide, may face and stress the urgency of increasing awareness and preparedness on these potential hazards.
Originality/value
The contribution for the first time aims to homogeneously collect and report all together existing spread information on architectural features, conservation status and geographical attributes for the whole group of SCs by accompanying this information with as much as possible complete 2D sections collection from existing drawings and novel 3D drawn sketches created for this contribution. Then the paper contributes to a better understanding of place-based vulnerability with local mapping dimension also considering future threats posed by climate change. Then it highlights the danger of floods and landslides at which the 28 SCs are subjected. Finally it reports how these risks will change under the ongoing impact of climate change.
Details
Keywords
Andrea Valagussa, Paolo Frattini, Giovanni Battista Crosta, Daniele Spizzichino, Gabriele Leoni and Claudio Margottini
Aim of this paper is to evaluate the reliability of UNESCO Periodic Reports for the assessment of hazards affecting the UNESCO world heritage sites (WHSs) and to rank the most…
Abstract
Purpose
Aim of this paper is to evaluate the reliability of UNESCO Periodic Reports for the assessment of hazards affecting the UNESCO world heritage sites (WHSs) and to rank the most critical WHSs in Europe through multicriteria analysis.
Design/methodology/approach
The Periodic Reports represent the available continental-scale knowledge on hazards that threaten the WHSs in Europe and include 13 different natural threats. The information included in these reports has been first validated with high-quality data available in Italy for volcanoes, landslides, and earthquakes. Starting from the Periodic Reports, a multicriteria hazard analysis has been developed by using the analytical hierarchy procedure (AHP) approach. This analysis allows to identify and to rank the most critical WHSs at the European scale.
Findings
The data provided by Periodic Reports are demonstrated to be a good starting point for a continental-scale analysis of the actual distribution of natural threats affecting WHSs in Europe. The Periodic Reports appear to be reliable enough for a first-order assessment of hazards. The general overview of the hazard at the European scale shows high value of hazard index in the Eastern Mediterranean area and Balkans, due to a combination of earthquakes and landslides. The most at danger cultural site is in Bosnia and Herzegovina, while the most at danger natural site is Norway.
Originality/value
The paper gives a contribution to improve the continental-scale knowledge on hazards affecting the UNESCO heritage sites. The assessment of hazard inside the WHSs is an important task for the preservation of cultural and natural heritage, and it is important for UNESCO to achieve some of its goals. Through this research, European WHSs have been ranked according to their degree of hazard.
Details
Keywords
Francesca Giuliani, Anna De Falco, Valerio Cutini and Michele Di Sivo
Worldwide, natural hazards are affecting urban cultural heritage and World Heritage Sites, exacerbating other environmental and human-induced threats deriving from deterioration…
Abstract
Purpose
Worldwide, natural hazards are affecting urban cultural heritage and World Heritage Sites, exacerbating other environmental and human-induced threats deriving from deterioration, uncontrolled urbanization and unsustainable tourism. This paper aims to develop a disaster risk analysis in Italian historic centers because they are complex large-scale systems that are cultural and economic resources for the country, as well as fragile areas.
Design/methodology/approach
A heritage-oriented qualitative methodology for risk assessment is proposed based upon the formalization of risk as a function of hazard, vulnerability and exposure, taking into account the values of cultural heritage assets.
Findings
This work provides a contribution to the body of knowledge in the Italian context of disaster risk mitigation on World Heritage Sites, opening for further research on the monitoring and maintenance of the tangible heritage assets. The application to the site of San Gimignano proves the effectiveness of the methodology for proposing preventive measures and actions that ensure the preservation of cultural values and a safer built environment.
Originality/value
The application of a value-based simplified approach to risk analysis is a novelty for historic centers that are listed as World Heritage Sites.
Details
Keywords
King C.T. Duho, Mark Opoku Amankwa and Justice I. Musah-Surugu
The purpose of this paper is to examine the determinants and convergence of government effectiveness in African and Asian countries.
Abstract
Purpose
The purpose of this paper is to examine the determinants and convergence of government effectiveness in African and Asian countries.
Design/methodology/approach
The study utilizes data from 100 countries in Africa and Asia from 2002 to 2018. The panel-corrected standard error regression is used for the regression analysis, while both beta-convergence and sigma-convergence among the countries are tested.
Findings
Both beta-convergence and sigma-convergence exist among African and Asian countries. Asia performs better than Africa across all indicators except for press freedom, and voice and accountability. Corruption perception index, government size, voice and accountability, regulatory quality and economic wealth have a significant positive effect on government effectiveness. Press freedom negatively impacts on government effectiveness, suggesting that freedom is necessary but not sufficient if there are political actors whose actions undermine freedom. Similarly, the political constraint index, as reflected by checks and balances are necessary but not sufficient to enhance government effectiveness, especially in Asia.
Practical implications
The results reveal that for press freedom and political checks and balances to enhance government effectiveness, there is a need for a different and holistic approach. The results are relevant for policymakers, public sector practitioners and academics.
Originality/value
This study utilizes a new dataset and is premier in exploring the convergence of government effectiveness among African and Asian countries.
Details
Keywords
Bapon Fakhruddin, Jassodra Kuizon and Craig Glover
Hazard risk communication has arguably been a challenge, especially in communities which are susceptible to multiple hazards. Orewa was specially chosen for this research in order…
Abstract
Hazard risk communication has arguably been a challenge, especially in communities which are susceptible to multiple hazards. Orewa was specially chosen for this research in order to provide a complete assessment of the effectiveness of communicating New Zealand's early warning strategy in a multi-hazard area. Two categories of surveys were undertaken; experts and academics in emergency management and disaster risk resilience and the Orewa community. A semi-qualitative indicator-based analysis was conducted with the normalization of index values which resulted in four (4) categories; risk perception, risk awareness, risk governance and uncertainty, trust and credibility. The resulting vulnerability index indicated that risk perception and uncertainty, trust and credibility ranked the highest, followed by risk awareness and risk governance. Risk perception had stark differences between what the community perceives as being most at risk from to what the experts deem to be the highest risk for Orewa. This has implications for policy directives as well as funding for risk reduction. Uncertainty, trust and credibility was another area which indicated conflicting sentiments between the community and experts. The community generally trusts decision-makers but the experts think they don't. This shows that the community is aware of their risks, but may not necessarily believe that the experts are providing enough efforts in what is of importance to them. Risk governance is not a vulnerable area to the experts as they have been actively engaging in hazards that they deem Orewa was most at risk from. Any breakdown in communication can have detrimental effects if multiple hazards were to occur at once in the case of Orewa.
Details
Keywords
Francesco Pastore, Claudio Quintano and Antonella Rocca
The Italian school-to-work transition (STWT) is astonishingly slow and long in comparison to the other EU countries. We analyze its determinants comparing the Italian case with…
Abstract
Purpose
The Italian school-to-work transition (STWT) is astonishingly slow and long in comparison to the other EU countries. We analyze its determinants comparing the Italian case with Austria, Poland and the UK.
Design/methodology/approach
The analysis is based on a Cox survival model with proportional hazard. The smoothed hazard estimates allow us to identify the nonlinear path of the hazard function.
Findings
The authors reckon that the actual length of the transition to a stable job is around 30 months in Italy. Conversely, it is less than one year in the other countries. Women are particularly penalized, despite being on average more educated than men. Tertiary or vocational education at high secondary school strongly increases the hazard rate to a regular job. The smoothed hazard estimates suggest positive duration dependence at the beginning of the transition and slightly negative thereafter.
Practical implications
Stimulating economic growth and investing in education and training are important pre-conditions for shortening the transition.
Originality/value
Despite the duration of the STWT is one of the most important indicators to measure the efficiency of the STWT, it is not easy to measure. The authors build on their previous research work on this topic, but relaxing the assumption of a monotonic hazard rate and using the flexible baseline hazard approach to test for the existence of nonlinear duration dependence. Furthermore, they extend the analysis by including student-workers who attended a vocational path of education, in order to detect its effectiveness in allowing young people finding a job sooner.
Thanh Mai Ha, Shamim Shakur and Kim Hang Pham Do
This paper analyses Hanoi consumers' evaluation of food risk and response to the perceived risk.
Abstract
Purpose
This paper analyses Hanoi consumers' evaluation of food risk and response to the perceived risk.
Design/methodology/approach
The authors employed the mixed method approach that integrates segmentation analysis on the survey data and information from group discussions.
Findings
Based on consumers' risk rating of six food groups and level of food safety worry, the authors identified four distinct consumer segments: low, moderate, high and very-high-risk perception. The authors found the existence of widespread food safety concerns among Hanoi consumers. Living in an urban region was associated with a higher level of food risk perception. Moderate, high and very-high-risk perception segments exhibited a very low level of institutional trust and subjective control over hazards. Response to the perceived risk differed across segments. “Very high-risk perception” was associated with the most risk-averse behaviour, putting more effort into seeking food safety information and engaging more in supermarket purchase. Consumers with a low and moderate perceived food risk participate more in self-supply of food to reduce their food safety concern.
Practical implications
The paper provides empirical evidence on consumers' evaluation of food risk and their risk-reducing strategies to support the risk communication in Vietnam.
Social implications
Enhancing institutional trust and risk communication including hazard education can improve consumer confidence in food.
Originality/value
This is the first segmentation study on consumer food risk perception in Vietnam.
Details
Keywords
Due to the “European Union Framework Directive on Safety and Health at work” (Directive 89/391/EEC, 1989), every employer is obliged to avoid psychosocial hazards when designing…
Abstract
Purpose
Due to the “European Union Framework Directive on Safety and Health at work” (Directive 89/391/EEC, 1989), every employer is obliged to avoid psychosocial hazards when designing work. Little is known empirically about the barriers that workplace actors experience while developing and implementing OSH measures that prevent psychosocial hazards. The purpose of this paper is to explore barriers, causes and attempts to overcome them and discusses them with reference to relevant theoretical concepts and models that help to explain how these barriers hinder the development and implementation of OSH measures.
Design/methodology/approach
Semi-structured interviews with workplace actors in charge of psychosocial risk assessment (PRA) were conducted in 41 business cases, and transcripts were analysed using a thematic analysis approach. Barriers, causes and attempts to overcome them were extracted inductively and discussed with reference to relevant theories and explanatory models.
Findings
The complex nature of psychosocial risks, hindering general beliefs, lack of a perceived scope for risk avoidance, lack of assumptions of responsibility among players on all hierarchical levels, discrepancies between formal responsibility and decision authority, and low reflexivity on processes of development and implementation of interventions were described as barriers. Causes and attempts to overcome these barriers were reflected upon by workplace actors.
Practical implications
Recommendations on the organisation of PRA will be given with respect to the reported results and relevant research in this field.
Originality/value
This qualitative study explores the barriers to developing and implementing OSH measures to eliminate psychosocial hazards, from the perspective of actors in charge of PRA, and why they might fail.
Details
Keywords
Mónica Moreno, Rocío Ortiz and Pilar Ortiz
Heavy rainfall is one of the main causes of the degradation of historic rammed Earth architecture. For this reason, ensuring the conservation thereof entails understanding the…
Abstract
Purpose
Heavy rainfall is one of the main causes of the degradation of historic rammed Earth architecture. For this reason, ensuring the conservation thereof entails understanding the factors involved in these risk situations. The purpose of this study is to research three past events in which rainfall caused damage and collapse to historic rammed Earth fortifications in Andalusia in order to analyse whether it is possible to prevent similar situations from occurring in the future.
Design/methodology/approach
The three case studies analysed are located in the south of Spain and occurred between 2017 and 2021. The hazard presented by rainfall within this context has been obtained from Art-Risk 3.0 (Registration No. 201999906530090). The vulnerability of the structures has been assessed with the Art-Risk 1 model. To characterise the strength, duration, and intensity of precipitation events, a workflow for the statistical use of GPM and GSMaP satellite resources has been designed, validated, and tested. The strength of the winds has been evaluated from data from ground-based weather stations.
Findings
GSMaP precipitation data is very similar to data from ground-based weather stations. Regarding the three risk events analysed, although they occurred in areas with a torrential rainfall hazard, the damage was caused by non-intense rainfall that did not exceed 5 mm/hour. The continuation of the rainfall for several days and the poor state of conservation of the walls seem to be the factors that triggered the collapses that fundamentally affected the restoration mortars.
Originality/value
A workflow applied to vulnerability and hazard analysis is presented, which validates the large-scale use of satellite images for past and present monitoring of heritage structure risk situations due to rain.
Details