Sökning: "growth mechanism"

Visar resultat 16 - 20 av 1017 avhandlingar innehållade orden growth mechanism.

  1. 16. Growth regulation in sarcomas : studies in vivo and in cell culture

    Författare :Avni Abdiu; Linköpings universitet; []
    Nyckelord :MEDICINE; MEDICIN;

    Sammanfattning : Sarcomas are malignant tumors of mesenchymal origin, and can arise in soft-tissue and in bones. It has been suggested that the abnormal growth regulation in sarcoma cells may be due to an autocrine mechanism, in which the cells are stimulated by an endogenous production of growth factors. LÄS MER

  3. 17. Estrogens and lymphoma growth

    Författare :Muhammad Sharif Hasni; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :;

    Sammanfattning : Lymphomas are generally not considered as endocrine-associated cancers. Nevertheless, most lymphoid malignancies show a gender differencein incidence and prognosis, with males being more affected.The molecular mechanism for this gender difference is unknown. LÄS MER

  4. 18. Turbulence-Assisted Planetary Growth : Hydrodynamical Simulations of Accretion Disks and Planet Formation

    Författare :Wladimir Lyra; Nikolai Piskunov; Thomas Henning; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; accretion; accretion disks; hydrodynamics; instabilities; methods: numerical; solar system: formation; planets and satellites: formation; magnetohydrodynamics MHD ; turbulence; diffusion; stars: planetary systems: formation; Astronomy and astrophysics; Astronomi och astrofysik;

    Sammanfattning : The current paradigm in planet formation theory is developed around a hierarquical growth of solid bodies, from interstellar dust grains to rocky planetary cores. A particularly difficult phase in the process is the growth from meter-size boulders to planetary embryos of the size of our Moon or Mars. LÄS MER

  5. 19. Growth Dynamics of Semiconductor Nanostructures by MOCVD

    Författare :Kai Fu; Ying Fu; Lars-Erik Wernersson; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Growth dynamics; Monte Carlo; semiconductor quantum dot; Material physics with surface physics; Materialfysik med ytfysik;

    Sammanfattning : Semiconductors and related low-dimensional nanostructures are extremely important in the modern world. They have been extensively studied and applied in industry/military areas such as ultraviolet optoelectronics, light emitting diodes, quantum-dot photodetectors and lasers. LÄS MER

  7. 20. Mechanism of Action of the Plant Growth Promoting Bacterium Paenibacillus polymyxa

    Författare :Salme Timmusk; Gerhart Wagner; Janet Jansson; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Microbiology; Plant growth promotion; Induced resistance; Biocontrol; Deleterious rhizobacterium; Mikrobiologi; Microbiology; Mikrobiologi;

    Sammanfattning : Paenibacillus polymyxa belongs to the group of plant growth promoting rhizobacteria (PGPR). Activities associated with P. polymyxa-treatment of plants in earlier experiments include, e.g. LÄS MER