Sökning: "Nissan"

Visar resultat 1 - 5 av 11 avhandlingar innehållade ordet Nissan.

  1. 1. Evaluation of Variable Speed Limits : Empirical Evidence and Simulation Analysis of Stockholm’s Motorway Control System

    Författare :Albania Nissan; Haris N. Koutsopoulos; Tomer Toledo; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Motorway Control System; Mainline Control; Variable Speed Limits; Driver Behavior; Capacity; Intelligent Transport Systems; microsimulation model; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; Mechanical energy engineering; Mekanisk energiteknik; Mechanical energy engineering; Mekanisk energiteknik;

    Sammanfattning : Variable Speed Limits (VSL) are often used to improve traffic conditions on congested motorways. VSL can be implemented as mandatory or advisory. The objective of the thesis isto study in detail the effectiveness of VSL. The focus is on both, design parameters and conditions under which VSL are most effective. LÄS MER

  3. 2. Spatial control of mRNA stability in yeast

    Författare :Susanne Huch; Tracy Nissan; Anders Byström; Anders Virtanen; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; mRNA stability; P bodies; mRNA turnover; gene regulation; decapping factors; molekylärbiologi; Molecular Biology;

    Sammanfattning : The degradation of mRNA is an important modulator of gene expression and the ultimate fate of messenger mRNA. Important steps in the degradation of mRNA include initial shortening of its poly(A) tail followed by the subsequent removal of the m7G cap. These two processes are linked temporally as well as spatially. LÄS MER

  4. 3. Post-transcriptional regulation by RNases in Streptococcus pyogenes

    Författare :Anne-Laure Lécrivain; Emmanuelle Charpentier; Bernt Eric Uhlin; Tracy Nissan; Ciarán Condon; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Post-transcriptional regulation; mRNA decay; RNA sequencing; RNase Y; RNase III; YhaM; PNPase; RNase R; RNase J1; Streptococcus pyogenes.; molekylärbiologi; Molecular Biology;

    Sammanfattning : Ribonucleases (RNases) are proteins that adjust cellular RNA levels by processing RNA transcripts, leading to their stabilization or degradation. RNases are grouped based on their ability to cleave the transcript internally (endoRNases) or degrade the transcript starting from the ends (exoRNases). LÄS MER

  5. 4. mRNA degradation factors as regulators of the gene expression in Saccharomyces cerevisiae

    Författare :Mridula Muppavarapu; Tracy Nissan; Per Sunnerhagen; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; mRNA decapping; mRNA degradation; Pat1; Edc3; Lsm4; Lsm1-7; P bodies; Dcp2; Transcription; Ribosome biogenesis; Exosome.; molekylärbiologi; Molecular Biology;

    Sammanfattning : Messenger RNA degradation is crucial for the regulation of eukaryotic gene expression. It not only modulates the basal mRNA levels but also functions as a quality control system, thereby controlling the availability of mRNA for protein synthesis. LÄS MER

  7. 5. Influence of wobble uridine modifications on eukaryotic translation

    Författare :Hasan Tükenmez; Anders Byström; Tracy Nissan; Sebastian Leidel; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : Elongator is a conserved six subunit protein (Elp1p-Elp6p) complex that is required for the formation of ncm5 and mcm5 side chains at wobble uridines in transfer RNAs (tRNAs). Moreover, loss-of-function mutations in any gene encoding an Elongator subunit results in translational defects and a multitude of phenotypic effects. LÄS MER