Search for dissertations about: "Comets"

Showing result 16 - 19 of 19 swedish dissertations containing the word Comets.

  2. 16. Measurement of primary DNA damage in individual cells from humans and mice using the alkaline single cell gel electrophoresis assay

    Author : Hamid Vaghef; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pharmaceutical biosciences; Farmaceutisk biovetenskap; Biopharmacy; Biofarmaci; arbets- och miljömedicin; Occupational and Environmental Medicine;

    Abstract : Primary DNA damage is considered to be an important step in the development of tumours and itmay also serve as a biomarker of genotoxic stress. Measurement of DNA strand breaks in peripherallymphocytes can yield useful information about the suitability of these cells for biomonitoring purposesand subsequently risk assessment. READ MORE

  4. 17. Laser Interaction with Minerals Common on Asteroids

    Author : Niklas Anthony; Mikael Granvik; Christina Wanhainen; Olle Norberg; Christopher Dreyer; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Onboard space systems; Rymdtekniska system;

    Abstract : Asteroids are worth studying for three reasons: planetary protection, industrial applications, and scientific knowledge. It is critical we develop technologies capable of diverting objects on collision courses with our planet. READ MORE

  5. 18. Debris disks and the search for life in the universe

    Author : Gianni Cataldi; Alexis Brandeker; Jean-Charles Augereau; Stockholms universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; debris disks; astrobiology; Astronomy; astronomi;

    Abstract : Circumstellar debris disks are the extrasolar analogues of the asteroid belt and the Kuiper belt. These disks consist of comets and leftover planetesimals that continuously collide to produce copious amounts of circumstellar dust that can be observed as infrared excess or in resolved imaging. READ MORE

  6. 19. Thin water and ice films on minerals : a molecular level study

    Author : Merve Yeşilbaş; Jean-François Boily; Johannes Messinger; Grégory Lefèvre; Umeå universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; water; ice; cryosalt; minerals; rocks; atmosphere; Dynamic Vapour Sorption; FTIR; cryo-FESEM; fysikalisk kemi; Physical Chemistry;

    Abstract : Minerals in Earth’s crust and suspended in the atmosphere form water or ice films as thin as a few nanometers to as thick as a few micrometers, and beyond. Mineral-bound water and ice films in terrestrial systems (e.g. READ MORE