OSL dating as an alternative tool for age determination of relic charcoal kilns

Chronometric studies of charcoal production remains are largely based on ¹⁴C-dating of associated charcoal. Owing to intrinsic limitations, however, this method provides no meaningful time resolution for post-1650 CE features. We investigate the potential of optically stimulated luminescence (OSL) dating of heated sandy sediments as an alternative and complementary tool for dating charcoal kiln remains. Seven samples from five relic charcoal kilns and 11 complementary samples from the underlying sandy substrate are used. Through a range of procedural tests, we demonstrate that the single-aliquot, regenerative-dose procedure in combination with OSL signals from quartz allows determining equivalent doses both accurately and precisely. For four of the five investigated kilns, OSL ages are consistent with independent age information from ¹⁴C-dating and written sources. Especially for post-1650 CE features, the precision can be significantly better than that of ¹⁴C-dating, and we highlight the potential of OSL dating for distinguishing, relatively, between charcoal production phases with an unprecedented time resolution. We conclude that the approach is a promising alternative to ¹⁴C.     

How should tourism education values be transformed after 2020?

Abstract

Values and axiology are necessary components for successful and meaningful tourism education and research. They especially need to be revisited in considering the future of higher education in a COVID-19 world. If transformation means to bring about a substantial change in a positive direction, then the COVID-19 pandemic might be a blessing in disguise for tourism higher education, as a substantial change has been due for quite some time. The transformative powers that education offers are seen in the individual through the internal and external transformations of learners. Higher education holds the promise of transforming society, but it is widely criticized for being too enmeshed in neoliberal values, which weakens it ability to productively equip students with capacities to transform the society they are entering. Education, both generally and more specifically tied to tourism higher education, requires a stronger awareness of lived values and aspirational values to transform how education is carried out. These include, for example, an emphasis on wellbeing indicators over revenue and tourist arrival numbers. All humans act and plan for their futures according to their lived values, but such values are hardly ever overtly acknowledged in research or in daily parlance. The COVID-19 pandemic is stirring up a new search for these lived values in a context where past formulas are failing on a global scale.     

Embracing the future: path transformation and system reconfiguration for self-driving cars in West Sweden

ABSTRACT

The past years have witnessed a surge of academic interest into how new industrial paths are developed in regions. Transformation processes of existing regional industries have received less attention. This article focuses on radical innovation-based renewal processes of established paths and investigates how regional innovation systems are tackling challenges related to path transformation. Drawing on insights from the regional and technological innovation systems literatures, we develop an analytical framework that elucidates the relation between path transformation and system reconfiguration. The framework suggests that regional innovation system elements are created or adapted to (i) target the build-up of system functions regionally; (ii) link up to system functions in other locations, and (iii) transplant system functions from elsewhere. The analytical framework is applied to a case study of the transformation of the automotive industry in West Sweden towards self-driving cars. The empirical analysis provides support for the importance of the three types of system reconfiguration and emphasises the relevance of different types of assets. Furthermore, it highlights how actors tend to utilise previous networks and positions in global innovation systems rather than turning to the development of system functions regionally as the ‘default option’ of system reconfiguration.