Search for dissertations about: "clones"

Showing result 1 - 5 of 291 swedish dissertations containing the word clones.

  1. 1. Treeline dynamics in short and long term perspectives : observational and historical evidence from the southern Swedish Scandes

    Author : Lisa Öberg; Bengt-Gunnar Jonsson; Leif Kullman; Ulf Segerström; Mittuniversitetet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Betula pubescens ssp. czerepanovii; Picea abies; Pinus sylvestris; climate change; monitoring; treeline advance; clones; megafossils; immigration; Holocene; cryptic refugia; Swedish Scandes; Terrestrial ecology; Terrestrisk ekologi;

    Abstract : Against the background of past, recent and future climate change, the present thesis addresses elevational shifts of alpine treelines in the Swedish Scandes. By definition, treeline refers to the elevation (m a.s.l. READ MORE

  2. 2. Analysis of Sun-Damaged Skin and Epidermal p53 Clones

    Author : Helena Bäckvall; Nicole Basset-Seguin; Uppsala universitet; []
    Keywords : MEDICAL AND HEALTH SCIENCES; MEDICIN OCH HÄLSOVETENSKAP; MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Pathology; Patologi; Pathology; Patologi; Pathology; patologi;

    Abstract : Sun-damaged skin is a relevant target tissue for studying the development of skin cancer. The aim of the present study was to investigate the epidermal response to ultraviolet radiation (UVR) in human skin in vivo and in vitro and to explore the mutagenic effect of UVA. READ MORE

  3. 3. Impact and control of weeds in biomass willow clones

    Author : Johannes Albertsson; Sveriges lantbruksuniversitet; Sveriges lantbruksuniversitet; []
    Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES;

    Abstract : Willow (Salix spp.) grown on arable land as short-rotation coppice (SRC) produces renewable energy in the form of woody biomass. This perennial crop has a high ratio of energy output to input and a good environmental profile. However, weed control is mostly dependent on herbicide use. READ MORE

  4. 4. Initiation and histogenesis of adventitious roots in Salix clones

    Author : Ingemar Fjell; Stockholms universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : .... READ MORE

  5. 5. Strong Partial Clones and the Complexity of Constraint Satisfaction Problems : Limitations and Applications

    Author : Victor Lagerkvist; Peter Jonsson; Christer Bäckström; Nadia Creignou; Linköpings universitet; []
    Keywords : NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : In this thesis we study the worst-case time complexity of the constraint satisfaction problem parameterized by a constraint language (CSP(S)), which is the problem of determining whether a conjunctive formula over S has a model. To study the complexity of CSP(S) we borrow methods from universal algebra. READ MORE