Airing imperium: A historiography of radio governance in South Asia

The 1920s emerged as a landmark decade in the world history of radio, more particularly in South Asia. About a century later, this paper seeks to stitch together a critical historiography of radio governance in colonial South Asia. In doing so, the paper seeks to unravel colonial constructions, norms and rationalities associated with the modern medium of radio in the South Asian context. This paper draws on the works of Pinkerton, Zivin, Brayne, Potter and gleanings in their work of the autobiographical writings of Fielden and Reith, the first broadcasting controller of All India Radio and the general manager of the British Broadcasting Corporation, respectively, besides some official documents cited in these works pertaining to the goings-on in British South Asia and its broadcasting. Ultimately, this paper seeks to not only historicize the eventual decolonization and democratization that occurred, but also sets the stage to locate, understand and move towards sustainable media governance in a post-2015 world.

A matter of time? Sustainability and digital media use

Purpose This paper aims to unfold and emphasise the relevance of sustainability and time as research topics in media and communication research and discusses the relation of both phenomena with a focus on processes of media appropriation and media consumption. Design/methodology/approach The submission argues theoretically. Firstly, theories on sustainability and media and media and time are presented. Secondly, previous approaches from research on sustainable media use will be discussed. Finally, the authors call for a stronger accentuation of research on digital media, time, and sustainability. Findings The submission shows that previous research on sustainable media use does sufficiently take individual and social time experience into account. Moreover, research is too much focussed on the individual level. The authors therefore argue for three major conceptual changes in research on digital sustainability: time is a sustainable human resource; a shift of perspective from individual to relations is needed; and consideration of the cultural condition of capitalism is necessary. Practical implications This paper includes implications for the future research on digital media, time and sustainability. Originality/value According to the authors’ knowledge, this paper is the first one that connects perspectives on time with digital sustainability.

Media Tourism and Its Role in Sustaining Scotland’s Tourism Industry

Popular media, including films, television, comics, videogames, and books, are an increasingly important aspect of contemporary tourism. This is especially the case in Scotland, where popular culture led to the development of Scotland’s tourism industry. In this article, we will describe the phenomenon of media-related tourism in Scotland with respect to three selected case studies within Scotland: First, Glenfinnan Viaduct, made famous by the Harry Potter film series; Second, Doune Castle, used as a set for Monty Python, Game of Thrones and more recently, Outlander; Third, Abbotsford, home of Sir Walter Scott, a classical novelist now celebrating his 250th Birthday Anniversary. In examining these case studies, the article will consider how sustainable media tourism is. This approached is from the lens of media tourism and its impact on rural communities, concerns over local infrastructure, wider understandings of media tourism as a growing sub-sector, and the sustainability of the wider Scottish tourism industry in relation to the coronavirus pandemic.

Deep Eutectic Solvents as Catalysts for Upgrading Biomass

Deep eutectic solvents (DESs) have emerged as promising green solvents, due to their versatility and properties such as high biodegradability, inexpensiveness, ease of preparation and negligible vapor pressure. Thus, DESs have been used as sustainable media and green catalysts in many chemical processes. On the other hand, lignocellulosic biomass as an abundant source of renewable carbon has received ample interest for the production of biobased chemicals. In this review, the state of the art of the catalytic use of DESs in upgrading the biomass-related substances towards biofuels and value-added chemicals is presented, and the gap in the knowledge is indicated to direct the future research.

Natural deep eutectic solvents as tailored and sustainable media for the extraction of five compounds from compound liquorice tablets and their comparison with conventional organic solvents

A 1,4-butanediol–levulinic acid system was selected as a topgallant solvent and extraction parameters were optimized. NADES extracts exhibited higher extraction efficiency and in vitro antioxidant activities than conventional solvent extracts.

Sustainable Regeneration through the Cultural Conversion of Urban Heritage

As the industrial structure rapidly changed, the buildings and facilities at the helm of the previous industrialization era lost their original functions and became idle. These spaces contain elements of local history, culture, and time and provide the basis for this study. Therefore, it focuses on the role of a city’s sustainable media if they are converted to fit the city’s social and local context. In this study, we examine sustainable regeneration by adopting the methodology of the “new directions in planning theory” method, which means a contradictory approach to the sustainable values of long-standing industrial heritages from both physical and cognitive perspectives. We argue that its physical appearance, landscaping, and tectonic relation, composed of a specific spectrum of time accumulation, help people experience a sense of collective memory. In this way, a sense of time and place are embedded in materiality and are important to consider when moving toward urban sustainability. Our findings have implications for a new perspective on concrete regeneration strategies.

Strategies for metal colloidal nancrystal synthesis in sustainable media

[ACCESS RESTRICTED TO THE UNIVERSITY OF MISSOURI AT REQUEST OF AUTHOR.] Over the past decades, the Green Chemistry and Sustainability concept has aroused researchers to denounce their traditional ways of thinking regarding chemical processes to address the challenges relevant to global environmental concerns. The concept has demonstrated how fundamental scientific methodologies can protect human health and the environment in an economically beneficial manner. In academia and industry, the use of green solvents, such as water, supercritical fluids, ionic liquids (ILs) and deep eutectic solvents (DESs), has then become desirable in chemical processes. In the field of green nanochemistry, ILs and DESs have acquired courtesy as sustainable media for nanomaterials synthesis. There have been attempts to employ such eco-friendly fluids to synthesize, and additionally, control size and shapes of nanomaterials, where the field has been gaining intense interests as the morphology dictates the properties and functionalities of such nanomaterials. This dissertation reports strategies for metal colloidal nanocrystal synthesis in sustainable media and aims to build a foundation for understanding how to tailor eco-friendly IL and DES fluids to control the growth of metal nanocrystals. Chapter 1 explores research reporting strategies used for metal colloid synthesis in ILs and DESs. In Chapter 2, we have developed a strategy to replace a common organic solvent with an IL to prepare monodisperse gold nanoparticles (AuNPs) by a very fast microwave method. The pyrrolidinium IL used in the work demonstrates its capability to be efficiently recovered and reused for carrying out nanoscale synthesis iteratively. The work highlights the incompatibility of imidazolium ILs for the select nanoscale synthetic strategy. For Chapter 3, we have demonstrated a control over nanoparticle size and shape generated at an aqueous-organic interface. We have shown that an interfacial photoreduction leads to the production of spherical and wire-like nanostructures, respectively, when the IL employed involves a coordinated and non-coordinated IL anion, respectively. Next, Chapter 4 has focused on exploitation of a purposefully designed IL-inspired surfactant, acting dually as a reducing and stabilizing agent, for facile and controllable AuNP formation. The reported synthetic method is simple and rapid, using only a gold precursor and the surfactant. Coinage AuNPs can be obtained very fast, while predominantly triangular-shaped AuNPs can also be achieved by tuning parameters, such as the ratio of surfactant to the gold precursor, temperature, implementing a time delay before heating, and an addition of a directing agent. Finally, Chapter 5 outlines zwitterionic deep eutectic solvents (ZDESs) as novel media for metal nanocrystal synthesis, to expand portfolio of available DESs as the field is relatively new compared to that of IL.