Promoting nutrition sensitive and climate smart agriculture through increased use of traditional underutilised species in the Pacific

Poster presented at Tropentag 2014. International Conference on Research on Food Security, Natural Resource Management and Rural Development. "Bridging the Gap between Increasing Knowledge and Decreasing Resources" Prague (Czech Republic) Sep 17-19 2014

Decrumpling membranes by quantum effects

The phase diagram of an incompressible fluid membrane subject to quantum and thermal fluctuations is calculated exactly in a large number of dimensions of configuration space. At zero temperature, a crumpling transition is found at a critical bending rigidity $1/\alpha_{\rm c}$. For membranes of fixed lateral size, a crumpling transition occurs at nonzero temperatures in an auxiliary mean field approximation. As the lateral size L of the membrane becomes large, the flat regime shrinks with $1/\ln L$.Comment: 9 pages, 4 figure

Opportunities for mainstreaming biodiversity for food and nutrition into institutional food procurement programs in Brazil

Brazil has a well-established political and regulatory framework aimed at promoting food and nutritional security. This framework represents an innovative and ethical social contract aimed at achieving social inclusion, sustainable livelihoods and citizenship. It includes the Food Acquisition Program (PAA) and the National School Meals Program (PNAE), institutional food procurement programs which provide equitable support to family farming by acquiring their products at a fair price and directing them to public schools, public programs and social organisations. PNAE and PAA have been identified by the GEF-funded Biodiversity for Food and Nutrition Project (BFN) as entry-points for potentially improving nutrition and livelihoods with links to native biodiversity. At least 30% of the food purchased with federal funds through PNAE must be bought directly from family farmers. Both initiatives include ethical standards and incentives of up to 30% in the price for organic or agroecological produce, prioritising purchases from quilombolas and indigenous communities, while also supporting family agriculture organisations to rescue, produce, store, and distribute seeds of local or traditional varieties. This creates new opportunities for the use of resources from Brazilian ecosystems, promoting institutional markets for biodiversity products while providing incentives for the management and sustainable use of agricultural biodiversity. However, assessments reveal that the proportion of food products from native biodiversity purchased overall by PNAE and PAA are low, which also reflects the current status of Brazilian agriculture, based mostly on exotic species. In order to better mainstream biodiversity into PNAE and PAA, the BFN Project in Brazil is working to increase awareness on the importance and nutritional value of native biodiversity species. Advocacy workshops, capacity building, as well as strategic alliances and partnerships with policy makers and other stakeholders are an important element of this, as are contributions to policy instruments that impact both programs. BFN also engages with Federal Universities, which are also collaborating centres for the implementation of PNAE, in research partnerships and activities to conduct analysis on the nutritional composition of 70 prioritised native fruit species and work with traditional communities to assess the knowledge and use of biodiversity foods

Diversifying institutional food procurement – opportunities and barriers for integrating biodiversity for food and nutrition in Brazil

The Brazilian Food Procurement Program (PAA) and the National School Feeding Program (PNAE) were identified by the GEF-funded Biodiversity for Food and Nutrition Project (BFN)1 as policy instruments with the greatest potential for diversifying institutional food procurement and improving di- ets while supporting family farming. This paper discusses the opportunities identified for mainstream- ing biodiversity through PAA and PNAE, targeted activities undertaken as well as two case studies. The first case study presents findings linked to the implementation of the PNAE in quilombola communi- ties in Goiás, while the second describes results of the inclusion of Juçara fruits (Euterpe edulis Mart.) in school meals in São Paulo. The paper concludes by highlighting some of the key barriers to better biodiversity mainstreaming and institutional food procurement together with some recommendations

Chiral Fermions on the Lattice through Gauge Fixing -- Perturbation Theory

We study the gauge-fixing approach to the construction of lattice chiral gauge theories in one-loop weak-coupling perturbation theory. We show how infrared properties of the gauge degrees of freedom determine the nature of the continuous phase transition at which we take the continuum limit. The fermion self-energy and the vacuum polarization are calculated, and confirm that, in the abelian case, this approach can be used to put chiral gauge theories on the lattice in four dimensions. We comment on the generalization to the nonabelian case.Comment: 31 pages, 5 figures, two refs. adde