Sökning: "lens model"

Visar resultat 21 - 25 av 113 avhandlingar innehållade orden lens model.

  1. 21. Seeing through the lens of social justice: A threshold for engineering

    Författare :Jens Kabo; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; liminality; threshold concepts; critical thinking; social justice; engineering education;

    Sammanfattning : In recent times the need for educational research dedicated to engineering education has been recognised. This PhD project is a contribution to the development of engineering education scholarship and the growing body of engineering education research. In this project it was recognised that problem solving is a central activity to engineering. LÄS MER

  3. 22. Cataract induced by UVR-B 300nm : characterization and genetic modulation of the lens sensitivity to oxidative stress

    Författare :Linda Maren Meyer; Karolinska Institutet; Karolinska Institutet; []
    Nyckelord :Lens; cataract; ultraviolet radiation; oxidative stress; Grx1; interleukins;

    Sammanfattning : Cataract is defined as an opacification of the lens resulting in visual impairment. Worldwide, it is the number one cause of blindness and there are currently no strategies to prevent the onset of the disease. Cataract surgery is the most commonly performed elective intervention in industrialized countries. LÄS MER

  4. 23. Fish Lenses : Anatomy and Optics

    Författare :Tomasz M Kozłowski; Funktionell zoologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Plasticity; Development; Cellular structure; Lens fiber cells; Modeling; Laser Scanning; Schlieren photography; Fast Fourier Transform FFT ;

    Sammanfattning : I have investigated some of the biological regulatory mechanisms governing the development of crystalline lenses. I used fish as model animals because they possess optically interesting lenses, while the geometrical simplicity of fish lenses allows for studies that are difficult or impossible with the lenses of other animals. LÄS MER

  5. 24. The Search for Syntax : Investigating the Syntactic Knowledge of Neural Language Models Through the Lens of Dependency Parsing

    Författare :Artur Kulmizev; Joakim Nivre; Roger Levy; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; syntax; language models; dependency parsing; universal dependencies; Datorlingvistik; Computational Linguistics;

    Sammanfattning : Syntax — the study of the hierarchical structure of language — has long featured as a prominent research topic in the field of natural language processing (NLP). Traditionally, its role in NLP was confined towards developing parsers: supervised algorithms tasked with predicting the structure of utterances (often for use in downstream applications). LÄS MER

  7. 25. Posterior capsule opacification : An experimental study in vitro and in vivo

    Författare :Niklas Wallentin; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical biosciences; Posterior capsule opacification PCO ; after-cataract; lens epithelial cell; proliferation; aqueous humor AqH ; inflammation; growth factors; basic fibroblast growth factor bFGF ; transforming growth factor-β TGF-β ; extracapsular cataract extraction; corneal incision; rabbit; Farmaceutisk biovetenskap; Biopharmacy; Biofarmaci; galenisk farmaci; Pharmaceutics;

    Sammanfattning : The clinical and economic significance of posterior capsule opacification (PCO) makes it an important public health problem. A better understanding of the pathogenesis in order to reduce/prevent PCO is needed. For this purpose an experimental model in the rabbit was used and further developed in thisthesis. LÄS MER