Sökning: "unknown transition matrix"

Visar resultat 6 - 10 av 11 avhandlingar innehållade orden unknown transition matrix.

1. 6. Platelets – Multifaceted players in tumor progression and vascular function

   Författare :Yanyu Zhang; Anna-Karin Olsson; Gertraud Orend; Uppsala universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Cancer; Tumor; Platelet; HRG; PDGFB; TBK1; NETs; Angiogenesis; EMT; Metastasis; Medicinsk vetenskap; Medical Science; Oncology; Onkologi; Biologi med inriktning mot molekylär cellbiologi; Biology with specialization in Molecular Cell Biology;

   Sammanfattning : Platelets play a crucial role for blood hemostasis, the process that prevents bleeding. In addition, platelets have been demonstrated to promote cancer progression and cancer related complications like metastasis and thrombosis. LÄS MER

3. 7. Mechanistic Approach to Corrosion of Zirconium by Water - A First Principle Study

   Författare :Mikaela Lindgren; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; zirconium; hydrogen pick-up; corrosion; oxygen vacancy; DFT;

   Sammanfattning : Zirconium and zirconium oxides are of major technological importance. There are broad applications for these materials, from fuel cell electrolyte to semiconductors and in hip-implants. In nuclear power plants, zirconium alloys are widely used as cladding material to contain the fission fuel in the reactor cores. LÄS MER

4. 8. Cell cycle control in G1 : restriction points for growth factors and anchorage dependence

   Författare :Peter Zickert; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :cell cycle; cyclin E; growth control; growth factor; restriction point; ECM; anchorage;

   Sammanfattning : Background: The eukaryotic cell cycle consists of four well-defined phases. During the S phase DNA is replicated and during the M phase the chromosomes are segregated to daughter cells. The time gap between completion of M phase and entry into S phase is called G1. The time gap between S phase and mitosis is called G2. LÄS MER

5. 9. Offline and Online Models for Learning Pairwise Relations in Data

   Författare :Fazeleh Sadat Hoseini; Chalmers tekniska högskola; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Mulit-Armed Bandit; Pairwise Relations; Performance Modeling; Motion Trajectory Clustering; Minimax Distance; Bottleneck Identification; Online Learning; Representation Learning; Memory Efficiency; Concurrent Programming; Thompson Sampling;

   Sammanfattning : Pairwise relations between data points are essential for numerous machine learning algorithms. Many representation learning methods consider pairwise relations to identify the latent features and patterns in the data. This thesis, investigates learning of pairwise relations from two different perspectives: offline learning and online learning. LÄS MER

7. 10. Biodegradable magnesium implants, immunomodulation, and tissue repair/regeneration

   Författare :Heithem Ben Amara; Göteborgs universitet; []
   Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Adipose tissue; Biodegradable implants; Bone–implant interface; Bone marrow; Inflammation; Cellular mechanotransduction; Gene expression; Immunohistochemistry; Magnesium; Neovascularization; Osseointegration; Soft tissue injuries;

   Sammanfattning : The century-old paradigm of holding fractures with a metallic implant to enable bone repair, known as osteosynthesis, is still used today without alteration. Patients are increasingly being treated with metallic implants made of magnesium (Mg) that secure osteosynthesis and are reabsorbed in situ without the surgical re-entry that requires their permanent analogs. LÄS MER