Sökning: "Claus Persson"

Hittade 3 avhandlingar innehållade orden Claus Persson.

  1. 1. Socialt entreprenörskap – informations- och kommunikationsteknologi för lokal handlingsgemenskap

    Författare :Claus Persson; Institutionen för informatik; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; social learning; democracy; discussion; dialogue; virtual community; participative action; community of action; e-participation; e-democracy; ICT; social entrepreneurship; ethics;

    Sammanfattning : The theoretical findings of the thesis is composed of three parts, it consists of (i) a framework for social entrepreneurship, (ii) some pitfalls and success factors and (iii) a perspicuous design guide. These findings was a result of field research during a long time – more than 5 years, 2000-2005 – and the scientific purpose was to give a broad description and understanding of the research problem, which was: How should (i) social, (ii) pedagogical and (iii) technical components be arranged and aligned in a process to develop, uphold or vitalize a social and learning context by help of ICT-supported dialogue and discussion – e-democracy and e-participation – between ordinary participants/members and their representatives? The thesis describes a dialogue and discussion-based social entrepreneurship for the development and use of a similar like socio-technical ICT-artifact. LÄS MER

  3. 2. The identification and functional evaluation of novel cancer-associated fibroblast subtypes and matrisome proteins in pancreatic cancer

    Författare :Joshua Cumming; Daniel Öhlund; Cedric Patthey; Jenny Persson; Claus Jørgensen; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cancer-associated fibroblast CAF ; Single-cell RNA sequencing scRNAseq ; Pancreatic ductal adenocarcinoma PDAC ; Tumor microenvironment TME ; Extracellular matrix ECM ; Organoid-based co-culture model; Drug-screen; Oncology; onkologi;

    Sammanfattning : Pancreatic ductal adenocarcinoma (PDAC) is a highly lethal malignancy characterized by an extensive desmoplastic stroma. The stroma is the site of intricate communication between malignant cells and their surrounding environment. LÄS MER

  4. 3. Evolution of Plants : a mathematical perspective

    Författare :Magnus Lindh; Åke Brännström; Jacob Johansson; Mats G Larson; Lennart Persson; Claus Rüffler; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Evolution; plants; mathematics; optimization; optimal control; adaptive dynamics; flowering; seasons; tree crown; drought; taproot; trade-off; strategy; trait; ESS; NPP; LAI; Red Queen; Mathematics; matematik;

    Sammanfattning : The Earth harbors around 300 000 plant species. The rich and complex environment provided by plants is considered a key factor for the extraordinary diversity of the terrestrial fauna by, for example, providing food and shelter. LÄS MER