Suchergebnisse

Policy capacity is described as a determinant for effective policy implementation. Its contents vary according to modes of governance. Based on available academic studies, grey literature, and semi-structured interviews, this study empirically explores how urban village redevelopment has been carried out in two cities, Hangzhou and Guangzhou, through the lens of policy capacity. By contrasting policy outcomes and the manifestation of policy capacity at different levels in these two cities, we develop three arguments that contribute to our understanding of urban renewal and policy capacity. Firstly, the performance of any policy action is affected by the capacity of the central actor to develop and implement policies. Secondly, understanding the interactive logical between analytical, operational, and political capacities under different governance modes is the key to understanding the strengths and weaknesses of policy capacity in a specific sector. Shaped by local contexts and past experience, local governments are predisposed to path dependence in developing and deploying policy capacity in urban village redevelopment. Thirdly, the capabilities and resources needed to support policies are largely determined by policy problematization at the analytical level: the technique-based approach of policy capacity theory needs to complete the missing link between policy framing and ethical issues.

Lack of suitable electron donors or acceptors is in many cases the key reason for pollutants to persist in the environment. Externally supplementation of electron donors or acceptors is often difficult to control and/or involves chemical additions with limited lifespan, residue formation or other adverse side effects. Microbial electrochemistry has evolved very fast in the past years - this field relates to the study of electrochemical interactions between microorganisms and solid-state electron donors or acceptors. Current can be supplied in such so-called bioelectrochemical systems (BESs) at low voltage to provide or extract electrons in a very precise manner. A plethora of metabolisms can be linked to electrical current now, from metals reductions to denitrification and dechlorination. In this perspective, we provide an overview of the emerging applications of BES and derived technologies towards the bioremediation field and outline how this approach can be game changing ; This work was funded through the European Union's Horizon 2020project ELECTRA under grant agreement No. 826244 and National Natural Science Foundation of China (NSFC) (No. 31861133001,31861133002, 31861133003). S.P is a Serra Húnter Fellow (UdG-AG-575) and acknowledges the funding from the ICREA Acad emia award.LEQUiA has been recognized as consolidated research group by theCatalan Government with code 2017-SGR-1552. KR is supported by theGhent University special research fund under grant No. BOF19/GOA/026