494 research outputs found

    Prospecting a systemic design space for pandemic responses

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    Design literature describes an expansion of design activity towards systemic relations, which requires dealing with controversies among multiple actors. These controversies have a sociotechnical nature, given the inextricably of social and technical relations. This research looks at the sociotechnical controversy in COVID-19 design responses to assess the extent of said expansion. A controversial design space mapping was conducted based on a set of web pages found in the international design community which describes design responses for the pandemic. Considered as a representation of a socially-produced design space, the mapping reveals that systemic relations are still overlooked by the design community. A possible explanation for that is the lack of depth in problematizing the COVID-19 pandemic. The research offers, thus, prospective recommendations for a systemic design space for pandemics and other systemic crisis

    An Overview of the Mechanisms Involved in Coffee-Hemileia vastatrix Interactions: Plant and Pathogen Perspectives

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    Coffee is one of the most consumed beverages in the world. It is also one of the most globally traded commodities. Coffee leaf rust (CLR), caused by the biotrophic fungus Hemileia vastatrix, is the most important disease affecting Arabica coffee growing worldwide, leading to significant yield losses if no control measures are applied. A deep understanding of the complex mechanisms involved in coffee-H. vastatrix interactions, such as the pathogen variability and the mechanisms governing plant resistance and susceptibility, is required to breed efficiently for durable resistance and design new approaches for crop protection. Here we summarize our current understanding across multiple areas related to pathogen infection, variability and candidate effectors, breeding for disease resistance, and the various components of the coffee immune system, by reviewing a comprehensive body of research on CLR and the advances recently made. We also update information about the defense responses activated by the application of plant resistance inducers, a promising alternative to fungicides in the control of CLR. Moreover, we identify and discuss future directions for further researchinfo:eu-repo/semantics/publishedVersio

    α-particle production in 6He + 120Sn collisions

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    The collision 6He+120Sn has been investigated at four energies near the Coulomb barrier. A large yield of α particles has been detected, with energies around the energy of the scattered 6He beam. The energy and angular distributions of the α particles have been analyzed and compared with breakup and neutron transfer calculations.Ministerio de Ciencia e Innovación (España) FPA2006-13807-c02-01Junta de Andalucía P07-FQM-02894Ministerio de Educación y Ciencia (España) PCI2006-A7-0654Programa Consolider-Ingenio 2010 (España) CSD2007-0004
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