Over the last several years, the debate about publics seems to have newly emerged. This debate critically reflects the Habermasian ideal of a (national) public sphere in a transnational context. However, it seems that the issue of a reconstruction of a global public sphere is more complex. In this brilliant and provocative book, Ingrid Volkmer argues that a reflective approach of globalization is required in order to identify and deconstruct key strata of deliberate public discourse in supra- and subnational societal formations. This construction helps to understand the new processes of legitimacy at the beginning of the 21st century in which the traditional conception of a ‘public’ and its role as a legitimizing force are being challenged and transformed. The book unfolds this key phenomenon of global deliberate interconnectedness as a discursive and negotiated dimension within ‘reflective’ globalization, i.e. continuously constituting, maintaining and refining the ‘life’ of the global public and conceptualizes a global public sphere. Offering insightful case studies to illustrate this new theory of the global public sphere, the book will be essential reading for students and scholars of media and communication studies , and social and political theory.
This book introduces a new methodology to assess the way in which journalists today operate within a new sphere of communicative ‘public’ interdependence across global digital communities by focusing on climate change debates. The authors propose a framework of ‘cosmopolitan loops,’ which addresses three major transformations in journalistic practice: the availability of ‘fluid’ webs of data which situate journalistic practice in a transnational arena; the increased involvement of journalists from developing countries in a transnationally interdependent sphere; and the increased awareness of a larger interconnected globalized ‘risk’ dimension of even local issues which shapes a new sphere of news ‘horizons.’ The authors draw on interviews with journalists to demonstrate that the construction of climate change ‘issues’ is increasingly situated in an emerging dimension of journalistic interconnectivity with climate actors across local, global and digital arenas and through physical and digital spaces of flows.
Ingrid Volkmer argues that the new global exchange can be regarded as a trans-societal sphere of mediation, which involves a global exchange of universal but also - increasingly - particular news and political information issues. This new diverse global information flow provides the communication platform, on which a global civil society emerges.
Ingrid Volkmer argues that the new global exchange can be regarded as a trans-societal sphere of mediation, which involves a global exchange of universal but also - increasingly - particular news and political information issues. This new diverse global information flow provides the communication platform, on which a global civil society emerges.
Over the last several years, the debate about publics seems to have newly emerged. This debate critically reflects the Habermasian ideal of a (national) public sphere in a transnational context. However, it seems that the issue of a reconstruction of a global public sphere is more complex. In this brilliant and provocative book, Ingrid Volkmer argues that a reflective approach of globalization is required in order to identify and deconstruct key strata of deliberate public discourse in supra- and subnational societal formations. This construction helps to understand the new processes of legitimacy at the beginning of the 21st century in which the traditional conception of a ‘public’ and its role as a legitimizing force are being challenged and transformed. The book unfolds this key phenomenon of global deliberate interconnectedness as a discursive and negotiated dimension within ‘reflective’ globalization, i.e. continuously constituting, maintaining and refining the ‘life’ of the global public and conceptualizes a global public sphere. Offering insightful case studies to illustrate this new theory of the global public sphere, the book will be essential reading for students and scholars of media and communication studies , and social and political theory.
This book introduces a new methodology to assess the way in which journalists today operate within a new sphere of communicative ‘public’ interdependence across global digital communities by focusing on climate change debates. The authors propose a framework of ‘cosmopolitan loops,’ which addresses three major transformations in journalistic practice: the availability of ‘fluid’ webs of data which situate journalistic practice in a transnational arena; the increased involvement of journalists from developing countries in a transnationally interdependent sphere; and the increased awareness of a larger interconnected globalized ‘risk’ dimension of even local issues which shapes a new sphere of news ‘horizons.’ The authors draw on interviews with journalists to demonstrate that the construction of climate change ‘issues’ is increasingly situated in an emerging dimension of journalistic interconnectivity with climate actors across local, global and digital arenas and through physical and digital spaces of flows.
The separation of isotopes has always been a challenge because of their identical size, shape and thermodynamic properties. Nowadays, the extraction of deuterium is performed e.g. by the Girdler Sulfid process or cryogenic distillation, which lead to low separation factors (below 2.5) in combination with high energy costs. The standard way to produce helium-3 is to skim it as a byproduct of the radioactive tritium decay. In this thesis, two alternative approaches have been investigated for the separation of light isotopes, Quantum Sieving and Chemical Affinity Sieving . While Quantum Sieving is based on confinement in small pores, Chemical Affinity Sieving relies on strong adsorption sites. Both methods use the mass difference of the isotopes, which is related to their zero-point energy. The microporous metal-organic frameworks are excellent candidates for studying these quantum effects due to their well-defined pore structure and the possibility to introduce strong adsorption sites directly into the framework. The samples have been exposed to an isotope mixture and the adsorbed quantity of each isotope was detected by low-temperature thermal desorption spectroscopy (TDS). The ratio of the desorbed amount of the isotopes leads directly to the selectivity (separation factor). The selectivity is determined as a function of exposure time and temperature and exhibits the highest value of 25 observed for hydrogen isotopes at temperatures well above the boiling point of liquid nitrogen.
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