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Public Diplomacy and Social Capital: Bridging Theory and Activities
Naddeo, Rachel,Matsunaga, Lucas The Korean Association for Public Diplomacy 2022 Journal of public diplomacy Vol.2 No.1
Public diplomacy activities can benefit from social capital theory, when its social dynamics is elucidated in the investment of complex social networks and in the establishment and management of relationships with foreign publics. Social capital theory explains that actors can produce purposive actions to mobilize resources in social structures, which thus explains the dynamics of social interactions. In response to the lack of conceptual frameworks for understanding public diplomacy activities within social capital theory, we conducted a narrative literature review that intends to identify the means through which international actors, such as governments, engage with foreign publics through the dynamics of social networks and the resources embedded in them. In addition, we explored the multidimensional characteristics of social capital to enhance the comprehension of the manner in which actors access, share, and maintain resources in target communities, institutions, or organizations through public diplomacy activities. In summary, we highlight the importance of new theoretical explorations on the application of social capital theory to public diplomacy and the need for a research agenda in the field.
Control of quorum sensing signals and emerging contaminants in electrochemical membrane bioreactors
Borea, Laura,Naddeo, Vincenzo,Belgiorno, Vincenzo,Choo, Kwang-Ho Elsevier 2018 Bioresource technology Vol.269 No.-
<P><B>Abstract</B></P> <P>The present study investigated the influence of electric field on the removal of quorum sensing (QS) and emerging contaminants using an electrochemical membrane bioreactor (eMBR). A significant reduction of N-octanoyl-L-homoserine lactone signal molecules (∼76%) was achieved in the eMBR, with respect to the level observed in the conventional MBR as the control. Furthermore, the intermittent electric current supply (0.5 mA/cm<SUP>2</SUP>) was found to be effective for the removal of atrazine and estrone. The degradation of key pharmaceutical compounds, such as diclofenac, carbamazepine, and amoxicillin, was also possible, confirming the applicability of the eMBR system for removing the priority chemical compounds of public health concern.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Influence of the electric field on QS activity in the eMBR was first investigated. </LI> <LI> Pharmaceuticals, atrazine and estrone removals by eMBR were evaluated. </LI> <LI> A reduction of C8-HSL concentration in the eMBR was found. </LI> <LI> EPSp and TEP were examined as a function of C8-HSL QS signal molecule. </LI> <LI> EPSp, TEP and C8-HSL concentrations over time were modelled using linear regression. </LI> </UL> </P> <P><B>Graphical abstract</B></P> <P>[DISPLAY OMISSION]</P>
Pasquale Longobardi,Annaluisa Mariconda,Elisa Calabrese,Marialuigia Raimondo,Carlo Naddeo,Luigi Vertuccio,Salvatore Russo,Generoso Iannuzzo,Liberata Guadagno 한국공업화학회 2017 Journal of Industrial and Engineering Chemistry Vol.54 No.-
A stable initiator for ROMP reactions, suitably designed to be embedded in structural resins, has been synthetized. It rapidly polymerizes cyclic olefins in reactive environments. The thermal stability and chemical inertness towards oxirane rings allow its employment in the form of molecular complex in epoxy precursors thus reducing the amount of initiator in structural self-healing materials of 90% wt/wt, simultaneously preserving the catalytic activity at high temperatures (180–200 C) also in presence of the aromatic primary amine (DDS). NMR and FTIR spectroscopy highlighted a relevant initiator stability able to fulfill industrial requirements. Self-healing efficiency has been found to be 103%.