The work of community gardens: reclaiming place for community in the city

The growth of community gardens has become the source of much academic debate regarding their role in community empowerment in the contemporary city. In this article, we focus upon the work being done in community gardens, using gardening in Glasgow as a case study. We argue that while community gardening cannot be divorced from more regressive underlying economic and social processes accompanying neoliberal austerity policies, it does provide space for important forms of work that address social needs and advance community empowerment. In developing this argument we use recent geographical scholarship concerning the generative role of place in bringing together individuals and communities in new collective forms of working. Community gardens are places that facilitate the recovery of individual agency, construction of new forms of knowledge and participation, and renewal of reflexive and proactive communities that provide broader lessons for building more progressive forms of work in cities

Towards synthetic biological approaches to resource utilization on space missions.

This paper demonstrates the significant utility of deploying non-traditional biological techniques to harness available volatiles and waste resources on manned missions to explore the Moon and Mars. Compared with anticipated non-biological approaches, it is determined that for 916 day Martian missions: 205 days of high-quality methane and oxygen Mars bioproduction with Methanobacterium thermoautotrophicum can reduce the mass of a Martian fuel-manufacture plant by 56%; 496 days of biomass generation with Arthrospira platensis and Arthrospira maxima on Mars can decrease the shipped wet-food mixed-menu mass for a Mars stay and a one-way voyage by 38%; 202 days of Mars polyhydroxybutyrate synthesis with Cupriavidus necator can lower the shipped mass to three-dimensional print a 120 m(3) six-person habitat by 85% and a few days of acetaminophen production with engineered Synechocystis sp. PCC 6803 can completely replenish expired or irradiated stocks of the pharmaceutical, thereby providing independence from unmanned resupply spacecraft that take up to 210 days to arrive. Analogous outcomes are included for lunar missions. Because of the benign assumptions involved, the results provide a glimpse of the intriguing potential of 'space synthetic biology', and help focus related efforts for immediate, near-term impact

Salt Tolerance and Polyphyly in the Cyanobacterium Chroococcidiopsis (Pleurocapsales)1

Chroococcidiopsis Geitler (Geitler 1933) is a genus of cyanobacteria containing desiccation and radiation resistant species. Members of the genus live in habitats ranging from hot and cold deserts to fresh and saltwater environments. Morphology and cell division pattern have historically been used to define the genus. To better understand the genetic and phenotypic diversity of the genus, 15 species were selected that had been previously isolated from different locations, including salt and freshwater environments. Four markers were sequenced from these 15 species, the 16S rRNA, rbcL, desC1 and gltX genes. Phylogenetic trees were generated which identified two distinct clades, a salt-tolerant clade and a freshwater clade. This study demonstrates that the genus is polyphyletic based on saltwater and freshwater phenotypes. To understand the resistance to salt in more details, species were grown on a range of sea salt concentrations which demonstrated that the freshwater species were salt-intolerant whilst the saltwater species required salt for growth. This study shows an increased resolution of the phylogeny of Chroococcidiopsis and provides further evidence that the genus is polyphyletic and should be reclassified to improve clarity in the literature

Drosophila germ-line modulation of insulin signaling and lifespan

Ablation of germ-line precursor cells in Caenorhabditis elegans extends lifespan by activating DAF-16, a forkhead transcription factor (FOXO) repressed by insulin/insulin-like growth factor (IGF) signaling (IIS). Signals from the gonad might thus regulate whole-organism aging by modulating IIS. To date, the details of this systemic regulation of aging by the reproductive system are not understood, and it is unknown whether such effects are evolutionarily conserved. Here we report that eliminating germ cells (GCs) in Drosophila melanogaster increases lifespan and modulates insulin signaling. Long-lived germ-line-less flies show increased production of Drosophila insulin-like peptides (dilps) and hypoglycemia but simultaneously exhibit several characteristics of IIS impedance, as indicated by up-regulation of the Drosophila FOXO (dFOXO) target genes 4E-BP and l (2)efl and the insulin/IGF-binding protein IMP-L2. These results suggest that signals from the gonad regulate lifespan and modulate insulin sensitivity in the fly and that the gonadal regulation of aging is evolutionarily conserved

Publisher Correction:Voices of biotech leaders (Nature Biotechnology, (2021), 39, 6, (654-660), 10.1038/s41587-021-00941-4)

In the version of this article initially published, an author name was given as Abasi Ene Abong. The correct name is Abasi Ene-Obong. Also, the affiliation for Sebastian Giwa was given as Elevian, Pagliuca Harvard Life Lab, Allston, MA, USA. The correct affiliations are Biostasis Research Institute, Berkeley, CA, USA; Sylvatica Biotech, North Charleston, SC, USA; and Humanity Bio, Kensington, CA, USA. An affiliation for Jeantine Lunshof was given as Department of Genetics, Harvard Medical School, Boston, MA, USA. The correct affiliation is Wyss Institute for Biological Engineering, Harvard University, Boston, MA, USA. The errors have been corrected in the PDF and HTML versions of the article

Voices of biotech leaders

Nature Biotechnology asks a selection of leaders from across biotech to look at the future of the sector and make some predictions for the coming years

Voices of biotech leaders

Nature Biotechnology asks a selection of leaders from across biotech to look at the future of the sector and make some predictions for the coming years.</p

Glasgow's Community Gardens: Sustainable Communities of Care

Drawing upon new approaches to thinking about care this research set out to explore the inter-relationships between sustainability, health, well-being and the urban environment. Through actively engaging with existing grassroots projects involved in community gardening in Glasgow, the project goes beyond existing top-down public policy initiatives, to explore bottom-up and collaborative models of urban regeneration. The research project underpinning this report was designed in collaboration with grassroots community garden groups in the city. Bringing together the experiences and opinions of volunteers and staff working in these gardens and a number of experts and activists in the related areas of Urban Agriculture (UA) and urban green space use, the report identifies a number of ways in which gardens benefit communities. It also assesses a number of challenges faced by community groups as they try to construct a sustainable future for community gardening in Glasgow. After a brief introduction to community gardening in Glasgow, this report outlines a range of benefits accrued to individuals that participate in community garden activities and the wider communities that live in relative proximity to the gardens. The report then considers the main challenges faced by community garden groups in the city

Keeping privatization on track: the active state, the unwilling investor and the case of rail freight in the UK

This paper presents a case study of rail freight privatization in the UK within the context of wider debates about globalization, the neo-liberal privatization programme and the role of the state. The case study reveals the interventionist role played by the state in both legitimizing the process of privatization and selling the idea to a reluctant private sector at home and abroad. In doing so, it points to a number of contradictions and problems in the model of privatization chosen that raises larger questions about the process of economic liberalization and market deregulation