Sökning: "Inversions"

Visar resultat 6 - 10 av 56 avhandlingar innehållade ordet Inversions.

  1. 6. A Unified Multitude : Experimental Studies of Bacterial Chromosome Organization

    Författare :Eva Garmendia; Diarmaid Hughes; Linus Sandegren; John R. Roth; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; bacterial evolution; chromosome organization and structure; chromosomal inversions; EF-Tu; horizontal gene transfer; Biologi med inriktning mot mikrobiologi; Biology with specialization in Microbiology;

    Sammanfattning : Bacteria are many, old and varied; different bacterial species have been evolving for millions of years and show many disparate life-styles and types of metabolism. Nevertheless, some of the characteristics regarding how bacteria organize their chromosomes are relatively conserved, suggesting that they might be both ancient and important, and that selective pressures inhibit their modification. LÄS MER

  3. 7. The Contribution of Vehicle, Occupant and Other Factors to the Risk of Injury as a Result of Vehicle Rollover

    Författare :Stephen Ridella; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Intrusion; Kinematics; Injury Causation; Roof Inversions.; Rollover; CIREN; NASS-CDS; Restraints;

    Sammanfattning : Injuries and deaths as a result of vehicle rollover have been declining in recent years like other crash modes, but it still remains a consistently large contributor of the overall crash fatalities in the United States. Also, more new vehicles are becoming equipped with electronic stability control and are subject to new regulations that call for increased roof strength and countermeasures to prevent ejection during rollover crashes. LÄS MER

  4. 8. Microwave Radiometric Observations of the Middle Atmosphere: Simulations and Inversions

    Författare :Patrick Eriksson; Chalmers tekniska högskola; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; atmospheric radiative transfer; middle atmosphere; sub-mm; data inversion; profile retrieval; microwaves; limb sounding; ozone; remote sensing;

    Sammanfattning : Two well-known examples of global environmental problems are the ozone depletion and the enhanced greenhouse effect. The importance and the complexity of these questions generate a demand for improved atmospheric observations, and microwave radiometry is an approach which is increasingly important for measurements of the middle atmosphere (10-100 km). LÄS MER

  5. 9. Interchromosomal effects of inversions on crossing-over and segregation in Drosophila melanogaster

    Författare :Claes Ramel; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : .... LÄS MER

  7. 10. The influence of climate on ozone risk for vegetation

    Författare :Jenny Klingberg; Göteborgs universitet; []
    Nyckelord :local climate; topography; nocturnal temperature inversions; ozone spring peak; passive diffusion sampler; AOT40; stomatal ozone flux; stomatal conductance; phytotoxic ozone dose; EMEP; MATCH; RCA3; climate change;

    Sammanfattning : Ground-level ozone (O3) is a harmful air pollutant causing reduced crop yield and quality, reduced forest growth and negative effects on human health in large parts of the world. O3 is generally seen as a regional scale air pollution problem, but O3 concentration ([O3]) variation on a smaller geographical scale can be considerable. LÄS MER