Sökning: "reading speed"

Visar resultat 21 - 25 av 33 avhandlingar innehållade orden reading speed.

  1. 21. Choice of tRNA on Translating Ribosomes

    Författare :Elli Bouakaz; Måns Ehrenberg; Christian Spahn; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; Ribosome; Translation; Accuracy; Proofreading; tRNA; Molekylärbiologi; Molecular biology; Molekylärbiologi;

    Sammanfattning : This thesis addresses different aspects of the question about accuracy of protein synthesis: i) the mechanism of tRNA selection during translation ii) study of ribosomal mutations that affect accuracy and iii) the choice of aminoacyl-tRNA isoacceptors on synonymous codons.By measuring the codon reading efficiencies of cognate and near-cognate ternary complexes we demonstrate that in optimal physiological conditions accuracy of substrate selection is much higher than previously reported; that during translation the ribosomal A site is not blocked by unspecific binding of the non-cognate tRNAs which would inhibit the speed of protein synthesis. LÄS MER

  3. 22. Development of optimized radiation therapy using external electron and photon beams

    Författare :Mats Åsell; Henk Huizenga; Stockholms universitet; []
    Nyckelord :Target design; Collimator Scattered Radiation; Collimator Scatter Kernel; Treatment Planning; Radiation Therapy Optimization; Intensity Modulation; Energy Modulation; Beam Modality Combinations; medicinsk strålningsfysik; Medical Radiation Physics;

    Sammanfattning : The development of new intensity modulated radiation therapy (IMRT) techniques and treatment optimization tools makes it desirable to further improve modulation methods by using scanned photon and electron beams. It is shown that the narrowest possible photon beams have the potential to improve the flexibility in dose delivery, speed up the dose delivery and improve the treatment outcome. LÄS MER

  4. 23. Development and results of the Swedish road deflection tester

    Författare :Peter Andrén; Anders Eriksson; Anders Lenngren; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Other engineering mechanics; Övrig teknisk mekanik;

    Sammanfattning : A project to construct a high-speed road deflection tester was initiated in the 1991. A mid-sized truck was used as a carrier for the first prototype. The results were promising and it was decided to build a full-size truck system. The new vehicle, based on a Scania R143 ML, was completed in 1997. LÄS MER

  5. 24. Medical, cognitive and motor outcome after treatment of pilocytic astrocytoma in the posterior fossa in childhood

    Författare :Ingela Kristiansen; Per Frisk; B Strömberg; Klas Blomgren; Uppsala universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Childhood; CNS tumour; pilocytic astrocytoma; posterior fossa; long-term outcome; cognition; language; motor performance; learning difficulties; Pediatrik; Pediatrics;

    Sammanfattning : Introduction: Pilocytic astrocytoma is the most common brain tumour in childhood. The aim of the studies was to investigate late medical, cognitive and motor complications in patients treated in childhood for pilocytic astrocytoma in the posterior fossa. LÄS MER

  7. 25. Stereo vision algorithms in reconfigurable hardware for robotics applications

    Författare :Jörgen Lidholm; Lars Asplund; Mikael Ekström; Giacomo Spampinato; Mattias O'Nils; Mälardalens högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Computer science; Datavetenskap; Computer Science; datavetenskap;

    Sammanfattning : This thesis presents image processing solutions in FPGA based embedded vision systems. Image processing is a demanding process but the information that can be extracted from images is very useful and can be used for many tasks like mapping and navigation, object detection and recognition, collision detection and more. LÄS MER