Now showing items 41-60 of 230

    • Genetically Engineered Virus Vaccine Vectors: Environmental Risk Management Challenges 

      Myhr, Anne Ingeborg; Traavik, Terje (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
    • Synthetic Aperture Focusing of Ultrasonic Data From Multilayered Media Using an Omega-K Algorithm 

      Skjelvareid, Martin H.; Olofsson, Tomas; Birkelund, Yngve; Larsen, yngvar (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      The synthetic aperture focusing technique (SAFT) is used to create focused images from ultrasound scans. SAFT has traditionally been applied only for imaging in a single medium, but the recently introduced phase shift migration (PSM) algorithm has expanded the use of SAFT to multilayer structures. In this article we present a similar focusing algorithm called multi-layer omega-k (MULOK), which ...
    • Trans-Atlantic genetic uniformity in the rare snowbed sedge Carex rufina 

      Westergaard, Kristine; Alsos, Inger Greve; Engelskjøn, Torstein; Flatberg, Kjell Ivar; Brochmann, Christian (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      The red-listed, amphi-Atlantic sedge Carex rufina is highly specialized to certain alpine snowbeds, and threatened by current changes in snow cover duration and moisture conditions. Here we address its range-wide genetic diversity, history, and conservation using amplified fragment length polymorphisms (AFLPs). Despite extensive primer testing, we detected very low overall diversity (4.1% polymorphic ...
    • Optimal foraging in chick-raising Common Guillemots (Uria aalge) 

      Bugge, Julie; Barrett, Robert T.; Pedersen, Torstein (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      The Norwegian population of the Common Guillemot Uria aalge has declined by > 95% since the 1960s, and is classified as critically endangered in the Norwegian Red List. Much of the recent decline has been attributed to reduced food availability, but without extensive documentation of adult diet. Instead, chick diet has been considered a proxy of adult diet during the breeding season in many Norwegian ...
    • Avipoxviruses : infection biology and their use as vaccine vectors 

      Weli, Simon Chioma; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Avipoxviruses (APVs) belong to the Chordopoxvirinae subfamily of the Poxviridae family. APVs are distributed worldwide and cause disease in domestic, pet and wild birds of many species. APVs are transmitted by aerosols and biting insects, particularly mosquitoes and arthropods and are usually named after the bird species from which they were originally isolated. The virus species Fowlpox virus (FWPV) ...
    • Orthopoxvirus DNA in Eurasian Lynx, Sweden 

      Tryland, Morten; Okeke, Malachy Ifeanyi; Hård af Segerstad, Carl; Mörner, Torsten; Traavik, Ingemar Terje; Ryser-Degiorgis, Marie-Pierre (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Cowpox virus, which has been used to protect humans against smallpox but may cause severe disease in immunocompromised persons, has reemerged in humans, domestic cats, and other animal species in Europe. Orthopoxvirus (OPV) DNA was detected in tissues (lung, kidney, spleen) in 24 (9%) of 263 free-ranging Eurasian lynx (Lynx lynx) from Sweden. Thymidine kinase gene amplicon sequences (339 bp) from ...
    • Archaeology and the debate on the transition from reindeer hunting to pastoralism. 

      Sommerseth, Ingrid (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      The distinctive Sami historical land use concerning reindeer management and settlement of inner Troms, North Norway, is reflected in places with archaeological remains. The insight and knowledge connected with these places can be accessed through oral traditions and place-names where reindeer management is embedded in reindeer knowledge developed over long time spans. Previous distinctions between ...
    • Virological and serological surveillance for type A influenza in the black-legged kittiwake (Rissa tridactyla) 

      Tønnessen, Ragnhild; Germundsson, Anna; Jonassen, Christine M.; Haugen, Irene; Berg, Kristin; Barrett, Robert T.; Rimstad, Espen (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      The epidemiology of avian influenza viruses (AIVs) in gulls is only partially known. The role of the world's most numerous gull species, the black-legged kittiwake (Rissa tridactyla), as a potential AIV reservoir species has been unclear. The prevalence of AIV and humoral response against AIV were therefore studied in a colony of apparently healthy black-legged kittiwakes breeding in a nesting cliff ...
    • "Lærerforum". Læreres bruk av og vurdering av et nettbasert veiledningstilbud. 

      Lund, Øystein (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Mange tiltak foreslås for å ruste norske lærere til å møte stadig større pedagogiske utfordringer. Nettbasert veiledning er ett slikt tiltak, og forventningene til de teknologibaserte løsningene har vært store. Imidlertid mangler forskning på hvordan lærere anvender, og vurderer tilbud om nettbasert faglig støtte. Artikkelen belyser funn fra en studie av læreres bruk av det nettbaserte veiledningstilbudet ...
    • Roald Amundsen : fortellinger om en polarhelt 

      Aarekol, Lena (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      2011 is the Nansen-Amundsen Year in Norway. This year celebrate two anniversaries with great significance for Norway. It is 150 years since the birth of Fritdjof Nansen and 100 years since Roald Amundsen, accompanied by four of his men, arrived as the first at the South Pole. During this year several new exhibitions has been made and displayed in different museums in Norway. The article surveys the ...
    • Unintended consequences: how the recovery of sea eagle Haliaeetus spp. populations in the northern hemisphere is affecting seabirds 

      Hipfner, Mark J.; Blight, Louise K.; Lowe, Roy W.; Wilhelm, Sabina I.; Robertson, Gregory J.; Barrett, Robert T.; Anker-Nilssen, Tycho; Good, Thomas P. (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      The recovery of sea eagle Haliaeetus spp. populations in the temperate northern hemisphere in the closing decades of the 20th century is one of the great conservation success stories of recent times, but the re-establishment of these apex predators in marine systems has had consequences for seabirds. Sea eagles affect seabirds both directly (by taking adults and offspring and by inducing potentially ...
    • Negotiating with the public - a new role for ethnographic museums? 

      Bjørklund, Ivar; Brantenberg, Odd t; Eidheim, Harald (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Indigenous peoples, like the Sami of Fenno-Scandinavia, continue to be the object of museum display in ethnographic museums. Most of these exhibits focus predominantly on culture history via objects that reveal the quality and richness of indigenous cultures, with less emphasis on the political struggles that indigenous peoples are involved in. This paper is a reflection on the experiences in ...
    • Long-term decline in egg size of Atlantic puffins Fratercula arctica is related to changes in forage fish stocks and climate conditions 

      Barrett, Robert T.; Nilsen, Erlend Birkeland; Anker-Nilssen, Tycho (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Due to major shifts in the marine ecosystem, many seabirds in the NE Atlantic have experienced short- and long-term breeding failures and population changes. One such seabird is the Atlantic puffin Fratercula arctica, the populations of which have declined in Norway at an annual rate of 2% over a ~30 yr period. Parallel to this decline, we found a significant decline in egg volume at 2 widely ...
    • Kan stedsnavn vise vei? 

      Sommerseth, Ingrid (Chronicle; Kronikk, 2012)
      Allerede i 1928 skrev professor Konrad Nielsen i festskriftet til rektor Qvigstad at samiske stedsnavn er mettet med historie, de inneholder informasjon om ferdsel og bruk av områdene i nord. Nielsen skrev at det er forskjeller i innhold og betydning på samiske stedsnavn brukt av sjøsamene ved kysten og samiske navn som er brukt i innlandet og i fjellområdene hvor reinen hadde sine beiteområder og ...
    • Barnegrava på Kveøy. Hvem var hun som lå der? 

      Sommerseth, Ingrid (Journal article; Tidsskriftartikkel, 2012)
      I eldre jernalder (0–600 e. Kr) ble de døde gravlagt inntil gårdene. I flere av gravene finner vi eksotiske smykker og våpen som vitner om langveis kontakt med datidas Europa. Det er fra denne perioden hvor arkeologene finner flest barn gravlagt. Den nordligste barnegrava finnes på gården Hundstad i Kvæfjord.
    • Polare maskuliniteter 

      Hauan, Marit Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      In this paper my aim is to read and understand the journal of Gerrit de Veer from the last journey of William Barents to the Arctic Regions in 1596 and the journal of captain Junge on his hunting trip from Tromsø to Svalbard in 1834.It is nearly 240 years between this to voyages. The first journal is known as the earliest report from the arctic era. Gerrit de Veer adds instructive copper engravings ...
    • Range shifts and global warming: ecological responses of Empetrum nigrum L. to experimental warming at its northern (high Arctic) and southern (Atlantic) geographical range margin 

      Buizer, B; Weijers, S; van Bodegom, PM; Alsos, Inger Greve; Eidesen, Pernille Bronken; van Breda, J; de Korte, M; van Rijckevorsel, J; Rozema, J (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      Global change is expected to lead to range shifts of plant species. The ecological mechanisms underpinning these shifts are currently not well understood. Here, we compared ecological responses possibly underlying southern range contraction and northern range expansion of Empetrum nigrum, a key species in northern heathlands, which may be related to global change. We hypothesized a negative ...
    • DYLAN i Dividalen / Dieváidvuovdi. Rapport från WP 1 Tromsø 2012 

      Sjøgren, Per Johan E; Andreas, Kirchhefer; Storm, Dikka; Ingrid, Sommerseth; Karl, Frafjord; Arve, Elvebakk (Research report; Forskningsrapport, 2012)
      Forskningsprojektet DYLAN (Hvordan skal vi forvalte DYnamiske LANdskaper?) är ett tvärvetenskapligt projekt med ena foten i naturvetenskapen med paleoekologi, dendroekologi, botanik, zoologi samt bevarandeekologi och andra i kulturvetenskapen med arkeologi och kulturhistoria. Tanken är att ge en helhetlig bild av hur fjellandskapet och de övre dalgångarna i Norge använts och förändrat sig genom ...
    • Teater på tvers i høyere utdanning. Studenters praksiserfaringer som teater i undervisningen. 

      Eriksen, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      I artikkelen beskrives og diskuteres to prosjekter der dramastudenter har produsert teater på bakgrunn av profesjonsstudenters praksiserfaringer, og de ferdige produktene har blitt brukt i utdanningen av nye studenter. Hvordan studenter kan bidra gjensidig til hverandres læring, på tvers av profesjonsutdanninger, fakulteter og faggrenser, er artikkelens problemstilling. Gjennom observasjon, ...
    • Jordbruksboplasser fra bronsealder og førromersk jernalder i Nord-Norge: Veien videre 

      Arntzen, Johan Eilertsen (Chapter; Bokkapittel, 2012)
      Nord-Norge er en langstrakt landsdel med store regionale forskjeller, både når det kommer til bosetting, ressursutnyttelse, landskap og klima. Landsdelen har ei lang historie som et grenseområde mellom ulike folkeslag. Det er også i Nord- Norge det nordlige grenseområdet for den nordiske jordbruksbosettinga i bronsealder og førromersk jernalder finnes. En stor mengde pollenanalyser av ...