Eloquent Images

Drawing on original research covering different periods and spaces, this book sets out to appreciate the specific place of images in the history of evangelisation in the long modern period. How can we reconceptualise the functions of the visual mediation of the gospel message, both in terms of the production and reception of this message and in terms of its effective mediators, artists, religious, and cultural ambassadors? The contributions in this book offer multiple geographical and historical insights regarding the circulation of the image on the global scale of the Christianised world or the world in the process of being Christianised, from China to Iberia. Combining the contribution of historians and art historians, the authors highlight the points of intercultural encounter and tension around preaching, catechesis, devotional practices and the propagandistic use of images. Through its aesthetic and social study of the image, and by examining the inner and outer borders of Europe and the mission lands, Eloquent Images contributes significantly to the history of evangelisation, one of the major dynamics of the first European globalisation.

Prominence of environmental and anthropogenic agents on the occurrence of coral reef bleaching syndrome and coral diseases

Coral reefs are the most productive ecosystems on Earth. They ensure the conservation of biodiversity and are a live habitat for 25% of all marine organisms. The main relationship on the coral reef is the symbiosis between corals and algae from the genus Symbiodinium (commonly called zooxanthellae). The authors of this publication have characterized and described the factors limiting the occurrence of coral reefs, including: water temperature, salinity, access to sunlight, contamination, physicochemical and hydromechanical parameters of water. Moreover anthropogenic threats to coral reefs have been specified, including diving tourism, ecological disasters (e.g. oil spills) and the development of marine aquaristics. Rapid changes in the basic living conditions are dangerous for corals and their symbionts and may cause the unsuitability of the new environment resulting in diseases such as coral bleaching. Corals bleaching is a disease associated with the break of the coral and algae relationship which results in a coral reef death on a global scale. Awareness of these negative factors, often related to human activity, may allow us to better understand the ecological processes that are the basis of reef functioning and might enable us to prevent and oppose to the changes and ecological recessions of coral reefs.

Cyber Security Frameworks

In this paper we attempt to explain and establish certain frameworks that can be assessed for implementing security systems against cyber-threats and cyber-criminals. We give a brief overview of electronic signature generation procedures which include its validation and efficiency for promoting cyber security for confidential documents and information stored in the cloud. We strictly avoid the mathematical modelling of the electronic signature generation process as it is beyond the scope of this paper, instead we take a theoretical approach to explain the procedures. We also model the threats posed by a malicious hacker seeking to induce disturbances in the functioning of a power transmission grid via the means of cyber-physical networks and systems. We use the strategy of a load redistribution attack, while clearly acknowledging that the hacker would form its decision policy on inadequate information. Our research indicate that inaccurate admittance values often cause moderately invasive cyber-attacks that still compromise the grid security, while inadequate capacity values result in comparatively less efficient attacks. In the end we propose a security framework for the security systems utilised by companies and corporations at global scale to conduct cyber-security related operations. Keywords: Electronic signature, Key pair, sequence modelling, hacker, power transmission grid, Threat response, framework.

Moral urban citizenship and the youth problem in a Danish ghetto

PurposeThis article examines the interventions from municipality, state and other actors in the Gellerup estate, a Danish “ghetto” by focusing on the youth problem and its construction, by examining a cross-disciplinary academic workshop intending to “solve the youth problem” of the estate.Design/methodology/approachThe article is based on the two authors' participation in the academic workshop, as well as their continued engagement with the Gellerup estate through separate project employments and ethnographic research projects in the estate, consisting of both participant observation and interviews.FindingsIn the article the authors suggest that the 2015 workshop reproduced particularly the category of idle urban young men as problematic. The authors analyze this as a form of “moral urban citizenship”. The article also analyzes some of the proposed solutions to the problem, particularly architectural transformations, and connects the Danish approach to the problems of the “ghetto” to urban developments historically and on a global scale.Originality/valueCross-disciplinary academic attempts to solve real-world problems are rarely incorporated as ethnographic data. In this article the authors attempt to include part of their own practice as academics as valuable data that opens up new perspectives on a field and their own involvement and analysis of it.

Seasonal variations, trend in the tropopause height/temperature over Indian stations and its modulations by SST anomalies of east Pacific Ocean

Global warming due to increase in the Green House Gases is now well known. There are several studies, also, suggesting discernible changes over the years in respect of meteorological parameters like, rainfall events, frequency and intensity of tropical cyclones/hurricanes, maximum/minimum temperature, SST of oceans etc, on regional as well as global scale. The present study besides finding out seasonal variations in tropopause height and temperature across each 5° latitude over India based on a longer data set, has demarcated the locations where significant trend in respect of temperature and height was observed over Indian region on annual scale besides investigating the possible causes of this trend. The study has also confirmed significant linear associationship between tropopause temperature/height over Indian stations and SST anomalies of east Pacific Ocean with SST leading by one year.

The Effects of Political Attitudes on Affective Polarization: Survey Evidence from 165 Elections

How do individual-level political attitudes influence affective polarization on a global scale? This article contributes to the debate on the social distance of party affect by testing a set of hypotheses in 165 elections across the world. With a sample of over 170,000 voters, the results of multilevel mixed-effects regressions demonstrate that ideological radicalism, political knowledge, and external efficacy substantively affect how voters see the main political parties in electoral disputes taking place in 52 countries from 1996 to 2019. Satisfaction with democracy, however, is context-dependent; it positively influences affective polarization only when generalized democratic satisfaction is low. Furthermore, I show that these correlations remain stable regardless of the operationalization of affective polarization—that is, based on two dominant parties and weighted for multiparty competition. These findings provide robust inputs to the study of party preferences and social distance in a cross-national longitudinal perspective.

Global-scale interdecadal variability a skillful predictor at decadal-to-multidecadal timescales for Sahelian and Indian Monsoon Rainfall

In the present study, a sea surface temperature-based index named global-scale interdecadal variability (GIV) encompassing the combined variability of Atlantic multidecadal oscillation (AMO) and interdecadal Pacific oscillation (IPO) has been proposed. The warm phase of GIV exhibits a “cold AMO-like” pattern in the Atlantic basin and a “warm IPO-like” pattern in the Pacific basin. About 84% (R ~−0.914) of Sahelian and 42% (R ~−0.647) of Indian rainfall’s temporal variance is attributed to GIV, showing substantial improvement compared to the variance explained by AMO and IPO individually. The physical mechanism for GIV-rainfall teleconnection is related to a modification of the Walker circulation. Although there is a substantial degree of uncertainty in the current generation of state-of-the-art climate models from the Coupled Model Intercomparison Project Phase 5 (CMIP5), some still replicate the observed GIV’s spatial structure, its teleconnection, and associated physical mechanism. The results presented herein advance our knowledge about rainfall’s interdecadal variability and have imperative ramifications for developing skillful decadal predictions.