Assessing local food systems in China for building healthy mega-cities

Despite the long-lasting concern for food security in China at the national level, policy attempts to cope with this issue have often resulted to be ineffective. More importantly, they have rarely addressed the question from a local perspective. International experiences of urban food strategies proved to be quite efficacious in enhancing the local provision of food and improving the overall city sustainability by shortening the supply chain, preserving peri-urban areas and improving the nutrition of citizens. By reviewing existing practices of city farming in China, mainly ascribable to urban agriculture experiences, the intention of this paper is to reflect upon the challenges of implementing more comprehensive local food systems. In the conclusion the paper argues that, given the current institutional, socio-economic, and environmental constrains of Chinese cities there is a need of introducing holistic planning tool to assess local food systems in order to ensure the building of real healthy cities.

BESTUFS policy and research recommendations IV: environmental zones in European cities, accommodating the needs of passenger and freight transport in cities, and BESTUFS Project recommendations

Recommendations report produced as part of the EC-funded BESTUFS project on urban freight transport.

Reducing social and environmental impacts of urban freight transport: a review of some major cities

This paper reviews the options available to policy makers in their efforts to reduce the negative impacts of urban freight transport. After providing a summary of the categories of negative impacts that can be targeted together with the specific policy initiatives available, it reviews the actions taken by policy makers across in cities within four countries (UK, Japan, the Netherlands and France). In the case of the UK and Japan attention is focused on a single city as an exemplar of some of the developments. In the case of the Netherlands and France the discussion is wider.

中国四个城市吸引海外回流人才比较研究：一个政策的视角 (Returned highly skilled migrants in four Chinese cities: a policy perspective)

Most studies of returned highly skilled migrants in China were guided by a national approach, emphasizing how the size and direction of the return migration were shaped by national policies and practices. What have been overlooked are the flows of returned skills at the municipal level where talent attraction and employment really take place. To fill this gap, the author conducted a comparative study of the returned highly-skilled migration in Beijing, Shanghai, Guangzhou and Shenzhen, the four most important cities in China. Based on in-depth interviews with returned skills from different countries and with various occupational backgrounds, complemented by the analysis of talent policies that have been issued by each city since the early 1990s and relevant statistical data, this study finds that, first, municipal cities tend to make ‘localized policies’ in order to suit local situation and to increase flexibility and efficiency in their effort of enticing of talents, demonstrating a wide range of variations not yet discussed in previous literature. It is thus crucial to pay timely attention to municipalities in order to obtain a more accurate and balanced picture of returned skilled migration in China. Second, the flow of returned skills shall be perceived in a broader analytical framework, in which the attractiveness to skills comes mostly from the long-term career potentials made possible by the industrial structure of individual city and mediated by social, cultural and geographical factors. It is only within this larger framework and through the interaction with other factors that government policies play their modulator roles.

The potential for neighbourhood regeneration in a period of austerity: changing forms of neighbourhood governance in two cities

Localism is an active political strategy, developed in a period of austerity by the UK's coalition government as a justification for the restructuring of state-civil society relationships. The deprived neighbourhood has long been a site for service delivery and a scale for intervention and action, giving rise to a variety of forms of neighbourhood governance. Prior international comparative research indicated convergence with the US given the rise of the self-help conjuncture and the decline of neighbourhood governance as a medium of regeneration. The subsequent shift in the UK paradigm from ‘big’ to ‘small state’ localism and deficit-reducing cuts to public expenditure confirm these trends, raising questions about the forms of neighbourhood governance currently being established, the role being played by local and central government, and the implications for neighbourhood regeneration. Two emerging forms of neighbourhood governance are examined in two urban local authorities and compared with prior forms examined in earlier research in the case study sites. The emerging forms differ significantly in their design and purpose, but as both are voluntary and receive no additional funding, better organised and more affluent communities are more likely to pursue their development. While it is still rather early to assess the capacity of these forms to promote neighbourhood regeneration, the potential in a period of austerity appears limited. Reduced funding for local services increases the imperative to self-help, while rights to local voice remain limited and the emerging forms provide little scope to influence (declining) local services and (still centralised) planning decisions, especially in neighbourhoods with regeneration needs which are likely to lack the requisite capacities, particularly stores of linking social capital. Initial conclusions suggest greater polarity and the further containment of deprived neighbourhoods.

Klebsiella pneumoniae subsp. pneumoniae–bacteriophage combination from the caecal effluent of a healthy woman

A recent study characterizing bacteriophage populations within human caecal effluent demonstrated the presence of numerous Podoviridae, Siphoviridae and Myoviridae within this material (Hoyles et al., 2014, Res Microbiol 165, 803–812). Further to this work, anaerobic bacteria were isolated on fastidious anaerobe agar from the caecal effluent of a healthy 31-year-old woman. Ten colonies were selected at random, streaked to purity and screened against the remaining caecal effluent (filter-sterilized, 0.45 μm pore size) in an attempt to isolate lytic bacteriophages. Bacteriophages within the effluent [2×105 ± 2.65×103 (n=3) pfu/ml] were active against five of the isolates, all identified by 16S rRNA gene sequence analysis as Klebsiella pneumoniae. One of the five isolates, L4-FAA5, was characterized further and found to be K. pneumoniae subsp. pneumoniae capsule type K2 rmpA+, and was used to propagate a bacteriophage (which we named KLPN1) to purity. Bacteriophage KLPN1 was a member of the Siphoviridae with a rosette-like tail tip and exhibited depolymerase activity, demonstrated by the formation of plaque-surrounding haloes that increased in size over the course of incubation. When screened against a panel of 21 clinical strains representing unknown K. pneumoniae subsp. pneumoniae capsule types and types K1, K2, K5, K20, K54 and K57, KLPN1 infected only K2 strains, but did not exhibit depolymerase activity against these. Whole-genome sequence analysis of KLPN1 showed the bacteriophage to have a genome of 49,037 bp (50.53 GC mol%) comprising 73 predicted ORFs, of which 22 encoded genes associated with structure, host recognition, packaging, DNA replication and cell lysis. The host recognition-associated gene was a potential depolymerase. This is the first report of the isolation of a bacterium–bacteriophage combination from the human caecum, and only the third member of the Siphoviridae known to infect K. pneumoniae subsp. pneumoniae.

Klebsiella pneumoniae subsp. pneumoniae–bacteriophage combination from the caecal effluent of a healthy woman

A sample of caecal effluent was obtained from a female patient who had undergone a routine colonoscopic examination. Bacteria were isolated anaerobically from the sample, and screened against the remaining filtered caecal effluent in an attempt to isolate bacteriophages (phages). A lytic phage, named KLPN1, was isolated on a strain identified as Klebsiella pneumoniae subsp. pneumoniae (capsular type K2, rmpA+). This Siphoviridae phage presents a rosette-like tail tip and exhibits depolymerase activity, as demonstrated by the formation of plaque-surrounding haloes that increased in size over the course of incubation. When screened against a panel of clinical isolates of K. pneumoniae subsp. pneumoniae, phage KLPN1 was shown to infect and lyse capsular type K2 strains, though it did not exhibit depolymerase activity on such hosts. The genome of KLPN1 was determined to be 49,037 bp (50.53 %GC) in length, encompassing 73 predicted ORFs, of which 23 represented genes associated with structure, host recognition, packaging, DNA replication and cell lysis. On the basis of sequence analyses, phages KLPN1 (GenBank: KR262148) and 1513 (a member of the family Siphoviridae, GenBank: KP658157) were found to be two new members of the genus “Kp36likevirus”.