Sökning: "databas"

Visar resultat 1 - 5 av 98834 avhandlingar innehållade ordet databas.

  1. 1. A Utopian Quest for Universal Knowledge Diachronic Histories of Botanical Collections between the Sixteenth Century and the Present

    Författare :Anna Svensson; Sabine Höhler; Peder Roberts; Sverker Sörlin; Dániel Margócsy; []
    Nyckelord :HUMANIORA; HUMANITIES; history of botany; utopia; Oxford University Botanic Garden; pressed plants in books; botanical collection; classification; herbarium; Global Plants; digitisation; database; conservation; natural dyeing; botanikhistoria; utopi; Oxford University Botanic Garden; pressade växter i böcker; botaniska samlingar; klassifikation; herbarium; Global Plants; digitalisering; databas; växtfärgning; History of Science; Technology and Environment; Historiska studier av teknik; vetenskap och miljö;

    Sammanfattning : This thesis explores the history of botany as a global collection-based science by tracing parallels between utopian traditions and botanical collecting, from their sixteenth-century beginnings to the present. A range of botanical collections, such as gardens, herbaria and classification systems, have played a central role in the struggle to discover a global or universal scientific order for the chaotic, diverse and locally shaped kingdom of plants. LÄS MER

  2. 2. English Lexical Nominalizations in a Norwegian-Swedish Contrastive Perspective

    Författare :Lene Nordrum; Göteborgs universitet.; Gothenburg University.; [2007]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; HUMANIORA; HUMANITIES; lexical nominalization; grammatical metaphor; deverbal noun; argument structure; popular science; nominal style; verbal style; contrastive linguistics; English; Norwegian; Swedish;

    Sammanfattning : The present study investigates English lexical nominalizations in terms of their syntax and semantics, and contrastively, in terms of their translations into Norwegian and Swedish. The material comprises 586 English lexical nominalizations and their Norwegian and Swedish translations collected from seven popular science texts in the English-Norwegian Parallel Corpus (ENPC) and the English-Swedidh Parallel Corpus (ESPC). LÄS MER

  3. 3. On axioms and images in the history of Mathematics

    Detta är en avhandling från Uppsala : Department of Mathematics, Uppsala University

    Författare :Johanna Pejlare; Uppsala universitet.; Göteborgs universitet.; Gothenburg University.; [2007]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; MATHEMATICS; MATEMATIK; Mathematics; History of mathematics; axiomatization; intuition; visualization; images; Euclidean geometry; axiomatization; intuition; visualization; images; Euclidean geometry;

    Sammanfattning : This dissertation deals with aspects of axiomatization, intuition and visualization in the history of mathematics. Particular focus is put on the end of the 19th century, before David Hilbert's (1862–1943) work on the axiomatization of Euclidean geometry. The thesis consists of three papers. LÄS MER

  4. 4. Physical properties and processes of secondary organic aerosol and its constituents

    Detta är en avhandling från Uppsala : Department of Mathematics, Uppsala University

    Författare :Kent Salo; Göteborgs universitet.; Gothenburg University.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; SOA; ageing; VOC; atmosphere; volatility; VTDMA; monoterpenes; ageing; VOC; volatility; monoterpenes; atmosphere; VTDMA;

    Sammanfattning : Atmospheric aerosol particles are involved in several important processes including the formation of clouds and precipitation. A considerable fraction of the ambient aerosol mass consists of organic compounds of both primary and secondary origin. LÄS MER

  5. 5. Characterisation and Some Statistical Aspects of Univariate and Multivariate Generalised Pareto Distributions

    Detta är en avhandling från Göteborg : Chalmers University of Technology

    Författare :Nader Tajvidi; Göteborgs universitet.; Gothenburg University.; [1996]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; generalised Pareto distribution; multivariate extreme value theory; multivariate Pareto distribution; small sample properties; Bartlett s correction; maximum likelihood; statistical computations; simulation AMS 1991 subject classification: 62F11; 62E20; 60F17; 65U05; 62E20; maximum likelihood; simulation AMS 1991 subject classification: 62F11; small sample properties; 60F17; multivariate extreme value theory; statistical computations; Bartlett s correction; multivariate Pareto distribution; 65U05;

    Sammanfattning : Extreme value theory is about the distributions of very large or very small values in a time series or stochastic process. This has numerous applications connected with environmental science, civil engineering, materials science and insurance. A rather recent approach for modelling extreme events is the so called peak over threshold (POT) method. LÄS MER