20 research outputs found

    How Will the Emerging Plurality of Lives Change How We Conceive of and Relate to Life?

    Get PDF
    The project “A Plurality of Lives” was funded and hosted by the Pufendorf Institute for Advanced Studies at Lund University, Sweden. The aim of the project was to better understand how a second origin of life, either in the form of a discovery of extraterrestrial life, life developed in a laboratory, or machines equipped with abilities previously only ascribed to living beings, will change how we understand and relate to life. Because of the inherently interdisciplinary nature of the project aim, the project took an interdisciplinary approach with a research group made up of 12 senior researchers representing 12 different disciplines. The project resulted in a joint volume, an international symposium, several new projects, and a network of researchers in the field, all continuing to communicate about and advance the aim of the project

    Animal Models of Human Cerebellar Ataxias: a Cornerstone for the Therapies of the Twenty-First Century

    Full text link

    Molecular responses in Aspergillus nidulans to Streptomyces-produced inhibitors of V-ATPases

    Get PDF
    In nature filamentous fungi and bacteria compete for space and nutrients. Both kinds of organisms have evolved mechanisms such as synthesis of antibiotic secondary metabolites to defeat other microbes. Studies of synthesis of antibiotics and microbial ecology in general have important applications in both agriculture and medicine. This thesis deals with molecular responses in the filamentous fungus Aspergillus nidulans to inhibitors of V-ATPases, bafilomycin and concanamycin. These antibiotics are produced by various species within the bacterial genus Streptomyces. The main function of V-ATPases in fungi is to keep the vacuoles acidified. Inhibition of V-ATPases leads to fungal hyperbranching and extremely reduced radial growth. Changes at the molecular level were observed when the fungus was treated with the antibiotics. Using mRNA differential display, five genes with changed expression after treatment were identified. A proteomic approach was used to screen for affected proteins, and 20 proteins displayed changed abundance after antibiotic treatment. Five of these were successfully identified. Most of these gene products were previously unknown, but one could be directly linked to disrupted V-ATPases. The function of several others could not, at this point, be directly related to inhibited V-ATPases. In this thesis, two genes were further characterised. The first of them, vmaA, encodes a major subunit of the V-ATPase. Disruption of vmaA confirmed that the V-ATPase is the main target for bafilomycin and concanamycin in A. nidulans. This mutant strain promises to be a useful tool in further studies of the identified gene products. The most extensively studied gene in this work is phiA. This gene was identified by mRNA differential display, and was up-regulated by bafilomycin. Surprisingly, phiA was found to be essential for normal asexual development. This is intriguing, and several hypotheses can be formulated, of which the most likely is that the induced phiA expression after inhibited V-ATPases is due to secondary effects in the fungus, i.e. caused by triggering growth arrest. In this thesis, several molecular methods, e.g. differential display, proteomics, and immunohisto-chemistry, have been used successfully to study interactions between bacteria and filamentous fungi

    Metoder för flerfÀrgsstickning : En undersökning av instruktioner i handböcker

    No full text
    Melin, O-P, 2017, Metoder för flerfĂ€rgsstickning - En undersökning av instruktioner i handböcker. (Fair-isle knitting methods – A survey of instructions in knitting manuals), Institutionen för Konstvetenskap, Department of Art History, Uppsala University.   The study researches the instructions for various methods of executing patterned knitting with two or more colours (often called Fair Isle knitting) in knitting-manuals from the Nordic countries, the UK and North America, in search of similarities, differences and traditions. Professor Edward Shils defines tradition as something created by humans which is transmitted between at least three generations. Are there similarities and differences between these areas in regard to how colour knitting is worked? The study identifies and differentiates between four main methods for colour-knitting. The researched ca 130 manuals, dated from the 1950ÂŽs until the present - were analyzed in regard to the relative frequency of the methods they advocate. The result is that two-thirds of the instructions for Fair Isle knitting, during the period and regardless of geographical/cultural area, propose the stranded method with parallel floats. The other stranded method - with rotated floats - is less often given, and seems to have become less popular within the researched period. The method with rotated floats is mentioned more often in manuals from the Anglo-Saxon countries. The bound methods of Fair Isle knitting are the least suggested in the researched manuals, despite the bound and woven method being referred to, especially in British manuals, as equally advantageous. This method also never seems to have had much popularity in the Nordic countries. Bound and twined knitting, although until recently only used in areas of Sweden and Norway, might, because of the recent publication of manuals, find a new lease of life. Professor Shils regards tradition as a transmitted pattern of thought connected to a thing or practice. Knitting to create textile from thread is therefore a tradition, as well as the methods that are handed down weather by oral or written instruction. As noted, some methods of colour-knitting are traditions more in some areas than in others. Also, some knitting methods may never have been lasting enough to establish themselves as traditions.   Keywords: Fair Isle knitting, instructions, methods, knitting-manuals

    Skum för att tĂ€cka ensilage– metodens möjligheter och svagheter för effektiv och hĂ„llbar grovfoderhantering : Slutrapport

    No full text
    Syftet med projektet Àr visa pÄ möjligheterna med att ersÀtta plastfilm i plansilotÀckning med miljövÀnligt skum för att uppnÄ en tillfredstÀllande ensileringsprocess för nordiska förhÄllanden. MÄlet med projektet Àr att se hur vÀl metoden fungerar samt för att belysa metodens möjligheter och svagheter. Detta innebÀr att förse lantbrukare med en objektiv bild av metodens potential under svenska förhÄllanden

    Vakuumlagring av fuktig spannmĂ„l –möjligheter och svagheter för effektiv och hĂ„llbar kraftfoderhantering

    No full text
    Syftet med projektet var att visa pÄ möjligheten att ersÀtta syrabaserade konserveringsmedel vid vakuumlagring med mikrobiella tillsatsmedel för att uppnÄ en acceptabel konserveringprocess av fuktigt spannmÄl relevant för nordiska förhÄllanden. MÄlet med projektet var att se hur kombinationen vakuum och mikroorganism fungerar i praktiken bÄde genom att titta pÄ fördelar samt att identifiera möjliga nackdelar

    Topics in Quantum Geometry

    No full text
    We consider two distinct, analytic models of quantum geometry that are both inspired by a desire to understand the dynamical space-time of non-perturbative quantum gravity.EThOS - Electronic Theses Online ServiceGBUnited Kingdo
    corecore