Sökning: "Fredrik Johansson"

Visar resultat 21 - 25 av 79 avhandlingar innehållade orden Fredrik Johansson.

  1. 21. Learning with Geometric Embeddings of Graphs

    Författare :Fredrik Johansson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Graphs are natural representations of problems and data in many fields. For example, in computational biology, interaction networks model the functional relationships between genes in living organisms; in the social sciences, graphs are used to represent friendships and business relations among people; in chemoinformatics, graphs represent atoms and molecular bonds. LÄS MER

  3. 22. Multi-functional Chromophores

    Författare :Fredrik Johansson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : As the push towards green energy become stronger, more efficient systems needs to be developed to compete with fossil fuel based systems. In modern Grätzel solar cells, most of the energy losses are inherited from the choice of chromophore and metal oxide surface. LÄS MER

  4. 23. Screening for Candidate Brain Tumor Genes : Identifying Genes that Cooperate with Platelet-Derived Growth Factor in Glioma Development and Progression

    Författare :Fredrik Johansson; Bengt Westermark; Leif Carlsson; Uppsala universitet; []
    Nyckelord :Pathology; PDGF; insertional mutagenesis; retroviral tagging; common insertion site; glioma; expression; cGMP-dependent protein kinase II; Patologi;

    Sammanfattning : Malignant primary brain tumors, gliomas, often overexpress both platelet-derived growth factor (PDGF) ligands and receptors providing an autocrine and/or paracrine boost to tumor growth. Glioblastoma multiforme (GBM) is the most frequent glioma. Its aggressive and infiltrative growth renders it extremely difficult to treat. LÄS MER

  5. 24. Shear Strength of Unfilled and Rough Rock Joints in Sliding Stability Analyses of Concrete Dams

    Författare :Fredrik Johansson; Håkan Stille; Kaare Hoeg; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Geoengineering and mining engineering; Geoteknik och gruvteknik;

    Sammanfattning : The horizontal water load combined with uplift forces implies that concrete damsare sensitive for sliding. At the same time, the safety of concrete dams againstsliding in the rock foundation is associated with large uncertainties. One of themain uncertainties regards the shear strength of rock joints. LÄS MER

  7. 25. Det reglerade undantaget : högerns jordbrukspolitik 1904-2004

    Författare :Fredrik Eriksson; Alf W. Johansson; Torbjörn Nilsson; Lars I. Andersson; Stockholms universitet; []
    Nyckelord :HUMANIORA; HUMANITIES; Allmänna valmansförbundet; Högerpartiet; Högern; Moderata samlingspartiet; Moderaterna; Jordbrukspolitik; Jordbruk; History subjects; Historieämnen;

    Sammanfattning : Agricultural policy and protectionism were major forces behind the foundation of the Swedish Conservative Party (AVF, later Högerpartiet and now Moderata samlingspartiet). Agriculture was seen as a traditional way of life and as such agriculture was deemed important enough to be protected by tariffs. LÄS MER