Sökning: "signatures"

Visar resultat 11 - 15 av 426 avhandlingar innehållade ordet signatures.

  1. 11. Electronic Cash and Hierarchical Group Signatures

    Författare :Mårten Trolin; Johan Håstad; Helger Lipmaa; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datavetenskap;

    Sammanfattning : I denna avhandling presenteras resultat inom två områden – elektroniska betalningar och hierarkiska gruppsignaturer. • En starkare säkerhetsdefinition för digitala pengar presenteras med syfte att användare inte ska behöva lita på banken i samma utsträckning som för äldre definitioner. LÄS MER

  3. 12. Breast cancer : Multifocality, heterogeneity, and related genetic signatures

    Författare :Gyula Pekar; Dumanski Jan; Sapino Anna; Uppsala universitet; []
    Nyckelord :breast; breast cancer multifocality; molecular phenotypes; intertumoral heterogeneity; biobanking; gene copy number aberrations;

    Sammanfattning : Breast carcinoma often exhibits a complex subgross morphology and may occupy a large volume of the breast tissue and show unifocal, multifocal or diffuse growth patterns. Expression of estrogen- and progesterone receptors, HER2 overexpression, tumor grade, and proliferative activity allows us to classify breast carcinoma into molecular subgroups (Luminal A, Luminal B, HER2-type, triple negative, and basal-like). LÄS MER

  4. 13. DNA methylation signatures in precursor lymphoid neoplasms : with focus on clinical implications & the biology behind

    Författare :Zahra Haider; Sofie Degerman; Magnus Hultdin; Göran Roos; Pieter van Vlierberghe; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Acute Lymphoblastic Leukemia; Lymphoma; T-ALL; BCP-ALL; T-LBL; DNA methylation; CIMP; Prognosis; TAL1; HOX.;

    Sammanfattning : Precursor lymphoid neoplasms, namely acute lymphoblastic leukemias (ALL) and lymphoblastic lymphomas (LBL), are characterized by an aggressive proliferation of malignant progenitor B- or T-cells. To improve risk classification at diagnosis, better prognostic and treatment stratifying biomarkers are needed. LÄS MER

  5. 14. Analyses of genomic and gene expression signatures

    Författare :Rickard Sandberg; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Microarray; comparative genomics; differential gene expression; cell lines; computational biology;

    Sammanfattning : Biology has entered a challenging, information-intense period where computational experiments are complementing traditional experiments. A plethora of new techniques have allowed biological processes to be investigated on a global scale. LÄS MER

  7. 15. Astrophysical and Collider Signatures of Extra Dimensions

    Författare :Henrik Melbéus; Tommy Ohlsson; Jörn Kersten; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Extra-dimensional quantum field theories; universal extra dimensions; Kaluza-Klein dark matter; Arkani-Hamed-Dimopoulos-Dvali model; hierarchy problem; neutrino mass; seesaw mechanism; Large Hadron Collider phenomenology; Elementary particle physics; Elementarpartikelfysik;

    Sammanfattning : In recent years, there has been a large interest in the subject of extra dimensions in particle physics. In particular, a number of models have been suggested which provide solutions to some of the problems with the current Standard Model of particle physics, and which could be tested in the next generation of high-energy experiments. LÄS MER