Sökning: "Björn G. Johansson"

Visar resultat 6 - 10 av 10 avhandlingar innehållade orden Björn G. Johansson.

  1. 6. Applications of hydrodynamic forces for membrane chromatography

    Författare :Björn Johansson Fast; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Membrane chromatography; FRAP; Protein accumulation; Supported lipid bilayer; Microfluidics; SEEC; Diffusion; Hydrodynamic forces; Label-free;

    Sammanfattning : Membrane proteins are proteins that reside in the cell membrane. Due to their position in the cell membrane, the barrier between the cell interior and exterior, they are vital to cell signaling. Moreover, the presence of membrane proteins in the cell's signaling pathways make membrane proteins important drug targets. LÄS MER

  2. 7. Psi-calculi: a framework for mobile process calculi : Cook your own correct process calculus - just add data and logic

    Författare :Magnus Johansson; Björn Victor; Joachim Parrow; Catuscia Palamidessi; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; process calculi; pi-calculus; bisimulation; operational semantics; nominal logic; Computer science; Datavetenskap; Datavetenskap; Computer Science;

    Sammanfattning : A psi-calculus is an extension of the pi-calculus with nominal data types for data structures, logical assertions, and conditions. These can be transmitted between processes and their names can be statically scoped as in the standard pi-calculus. LÄS MER

  3. 8. Granular Materials for Transport Infrastructures : Mechanical performance of coarse–fine mixtures for unbound layers through DEM analysis

    Författare :Ricardo de Frias Lopez; Johan Silfwerbrand; Jonas Ekblad; Björn Birgisson; Jörgen Johansson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; discrete element method; force distribution; gap-graded mixtures; granular materials; particle-scale behaviour; permanent deformation; resilient modulus; soil fabric; binära blandningar; diskreta elementmetoden; grusmaterial; kraftöverföring; verkningssätt på partikelnivå; permanent deformation; skelettstruktur; styvhet; Byggvetenskap; Civil and Architectural Engineering;

    Sammanfattning : Granular materials are widely used as unbound layers within the infrastructure system playing a significant role on performance and maintenance. However, fields like pavement and railway engineering still heavily rely on empirically-based models owing to the complex behaviour of these materials, which partly stems from their discrete nature. LÄS MER

  4. 9. New Forms of Collaboration in Emergency Response Systems : A framework for participatory design of information systems

    Författare :Kayvan Yousefi Mojir; Sofie P Pilemalm; Stefan Holgersson; Björn JE Johansson; Linköpings universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : An emergency response systems (ERS) is usually responsible for delivering essential services to save lives and minimise environmental damage in case of small, frequent or large-scale emergencies. The ongoing global financial crisis, lack of professional resources, public sector cuts and rising public expectations are some of the challenges ERSs currently are facing. LÄS MER

  5. 10. The Human Y chromosome and its role in the developing male nervous system

    Författare :Martin M. Johansson; David Skuse; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; MSY; sex differences; CNV; SNP; palindrome; palindromes; gr gr duplication; gr gr deletion; b2 b3 deletion; b2 b3 duplication; blue-grey duplication; blue-grey like duplication; IR2; U3; STS; AZFa; AZFb; AZFc; Olivary nucleus; Medulla oblongata; spinal cord; white matter; Affymetrix 6.0; embryo; embryonal; haplogroup; haplogroups; R1a; R1b; R-M207; E-M96; I-M170; J-M304; G-M201; Ashkenazi; Bolivian; Chinese; SNP array; padlock probing; AMY-tree; Biologi med inriktning mot zoologisk utvecklingsbiologi; Biology with specialization in Animal Development;

    Sammanfattning : Recent research demonstrated that besides a role in sex determination and male fertility, the Y chromosome is involved in additional functions including prostate cancer, sex-specific effects on the brain and behaviour, graft-versus-host disease, nociception, aggression and autoimmune diseases. The results presented in this thesis include an analysis of sex-biased genes encoded on the X and Y chromosomes of rodents. LÄS MER