Now showing items 20761-20780 of 37055

    • European Society of Endodontology position statement: Management of deep caries and the exposed pulp 

      Duncan, Henry F.; Galler, Kerstin; Tomson, Phillip L.M.; Simon, Stephanie; El-Karim, Ikhlas; Kundzina, Rita; Krastl, Gabriel; Dammaschke, Till; Fransson, Helena; Markvart, Merete; Zehnder, Matthias; Bjørndal, Lars (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-21)
      This position statement on the management of deep caries and the exposed pulp represents the consensus of an expert committee, convened by the European Society of Endodontology (ESE). Preserving the pulp in a healthy state with sustained vitality, preventing apical periodontitis and developing minimally invasive biologically based therapies are key themes within contemporary clinical endodontics. ...
    • Standing Rock as a place of learning - Strenghtening Indigenous Identities 

      Vassvik, Tuula Sharma (Master thesis; Mastergradsoppgave, 2019-11-12)
      ABSTRACT The paper looks at Indigenous identities and ways of decolonization through the lens of Standing Rock, an indigenous movement called, located by Lake Oahe (the Missoury River), North Dakota, from the spring in 2016 until late february 2017. The movement arose to protect the local drinking water against the construction of the Dakota Access Pipeline (DAPL) and with time came to symbolize ...
    • Hvilken skrivepedagogikk ligger til grunn ved skriveløp hos elever med norsk som andrespråk? En kasusstudie i en setting med særskilt norskundervisning 

      Johnsen, Ruben (Master thesis; Mastergradsoppgave, 2019-11-04)
      I denne studien har jeg ønsket å belyse hvilke skrivepedagogikker som ligger til grunn ved et skriveløp for elever med norsk som andrespråk. Studien er designet som en kasusstudie ved en utvalgt byskole i Nord-Norge. Datamaterialet er samlet inn gjennom observasjon av et skriveløp på en skoleuke, i tillegg til intervju av læreren i etterkant av skriveløpet. Før jeg dro ut for å samle data leste ...
    • Airborne exposure to gaseous and particle-associated organic substances in resin-based dental materials during restorative procedures 

      Nilsen, Bo Wold; Jensen, Einar; Õrtengren, Ulf; Bang, Berit; Michelsen, Vibeke Barman (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-16)
      Dental composite dust has been shown to act as a vehicle for methacrylates in vivo/in vitro. The objective of this study was to assess airborne exposure of dental personnel to gaseous and particle‐associated organic constituents from resin‐based dental materials in a simulated clinic. Sampling of total aerosol fractions and gaseous substances was performed by dental students carrying particle filters ...
    • Mesopelagic sound scattering layers of the high Arctic: Seasonal variations in biomass, species assemblage, and trophic relationships 

      Geoffroy, Maxime; Daase, Malin; Cusa, Marine Lure Joana; Darnis, Gérald; Graeve, Martin; Santana Hernadez, Nestor; Berge, Jørgen; Renaud, Paul Eric; Cottier, Finlo Robert; Falk-Petersen, Stig (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-12)
      Mesopelagic sound scattering layers (SSL) are ubiquitous in all oceans. Pelagic organisms within the SSL play important roles as prey for higher trophic levels and in climate regulation through the biological carbon pump. Yet, the biomass and species composition of SSL in the Arctic Ocean remain poorly documented, particularly in winter. A multifrequency echosounder detected a SSL north of Svalbard, ...
    • Ambient temperature effects on stress-induced hyperthermia in Svalbard ptarmigan 

      Nord, Andreas; Folkow, Lars (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-20)
      Stress-induced hyperthermia (SIH) is commonly observed during handling in homeotherms. However, in birds, handling in cold environments typically elicits hypothermia. It is unclear whether this indicates that SIH is differently regulated in this taxon or if it is due to size, because body temperature changes during handling in low temperatures have only been measured in small birds <0.03 kg (that ...
    • Terrestrial locomotion of the Svalbard rock ptarmigan: comparing field and laboratory treadmill studies 

      Marmol-Guijarro, Andres C; Nudds, Robert L.; Marrin, John C; Folkow, Lars; Codd, Jonathan R (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-07)
      Research into the terrestrial locomotion of birds is often based upon laboratory treadmill experiments. However, it is unclear how transposable these results are for birds moving in the wild. Here, using video recordings, we compared the kinematics of locomotion (stride frequency, stride length, stance phase, swing phase, duty factor) and speed range of Svalbard rock ptarmigan (<i>Lagopus muta ...
    • Responsible for responsibility? A study of digital e-health startups 

      Oftedal, Elin Merethe; Foss, Lene; Iakovleva, Tatiana Aleksandrovna (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-30)
      Responsible innovation (RI) has received increased attention from policymakers and academics as a solution to grand challenges and is viewed as the main driver for innovation. The United Nations has suggested 17 Sustainable Development Goals and responsible innovation can be seen as a tool that allows the movement of society towards reducing inequality, coping with environmental challenges and ...
    • Structural Breaks or Continuous Adjustments in Grain Production and Prices 1961-2014? An Explorative Study 

      Fretheim, Torun (Journal article; Tidsskriftartikkel, 2019-06-30)
      This article analyses grain production and prices 1961-2014. We first describe the development in aggregated and relative allocation of land worldwide for wheat, corn and soybeans, and the growth in production volumes and yields. We then proceed by analyzing long-term price relationships. Finding that grain prices are strongly co-integrated, we estimate an Error Correction Model to see whether ...
    • The epidemiology of zoonotic brucellosis in Bahr el Ghazal region of South Sudan 

      Madut, Nuol Aywel; Muleme, James; Kankya, Clovice; Nasinyama, George William; Muma, John Bwalya; Godfroid, Jacques; Jubara, Ambrose Samuel; Muwonge, Adrian (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-26)
      <p><i>Background - </i>In this study, we focused on three zoonotic brucellosis risk groups; abattoir workers, febrile cases at Wau hospital and cattle herders, in Bahr el Ghazal region, South Sudan. Competitive c-ELISA was used to detect anti-<i>Brucella</i> antibodies in 725 individuals between December 2015 and May 2016. In addition, questionnaire metadata, focus group discussions and key informant ...
    • Phylogenetic Reclassification of Vertebrate Melatonin Receptors To Include Mel1d 

      Denker, Elsa; Ebbesson, Lars O.E.; Hazlerigg, David; Macqueen, Daniel J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-01)
      The circadian and seasonal actions of melatonin are mediated by high affinity G-protein coupled receptors (melatonin receptors, MTRs), classified into phylogenetically distinct subtypes based on sequence divergence and pharmacological characteristics. Three vertebrate MTR subtypes are currently described: MT1 (MTNR1A), MT2 (MTNR1B), and Mel1c (MTNR1C / GPR50), which exhibit distinct affinities, ...
    • Body weight and body mass index influence bone mineral density in late adolescence in a two-year follow-up study. The Tromsø Study: Fit Futures 

      Nilsen, Ole Andreas; Ahmed, Luai A.; Winther, Anne; Christoffersen, Tore; Thrane, Gyrd; Evensen, Elin; Furberg, Anne-Sofie; Grimnes, Guri; Dennison, Elaine; Emaus, Nina (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-04-04)
      Determinants of bone acquisition in late adolescence and early adulthood are not well‐described. This 2‐year follow‐up study explored the associations of body weight (BW), body mass index (BMI), and changes in weight status with adolescent bone accretion in a sample of 651 adolescents (355 girls and 296 boys) between 15 and 19 years of age from The Tromsø Study: Fit Futures. This Norwegian ...
    • Seasonal shifts in feeding patterns: Individual and population realized specialization in a high Arctic fish 

      Cusa, Marine Lure Joana; Berge, Jørgen; Varpe, Øystein (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-21)
      Species with a broad and flexible diet may be at an advantage in a rapidly changing environment such as in today's Arctic ecosystems. Polar cod (<i>Boreogadus saida</i>), an abundant and ecologically important circumpolar Arctic fish, is often described as a zooplankton generalist feeder, which suggests that it may cope successfully with changes in prey composition. This description is justified ...
    • The PI3K and MAPK/p38 pathways control stress granule assembly in a hierarchical manner 

      Heberle, Alexander Martin; Razquin Navas, Patricia; Langelaar-Makkinje, Miriam; Kasack, Katharina; Sadik, Ahmed; Faessler, Erik; Hahn, Udo; Marx-Stoelting, Philip; Opitz, Christiane A.; Sers, Christine; Heiland, Ines; Schaeuble, Sascha; Thedieck, Kathrin (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-28)
      All cells and organisms exhibit stress-coping mechanisms to ensure survival. Cytoplasmic protein-RNA assemblies termed stress granules are increasingly recognized to promote cellular survival under stress. Thus, they might represent tumor vulnerabilities that are currently poorly explored. The translation-inhibitory eIF2α kinases are established as main drivers of stress granule assembly. Using a ...
    • Seasonal constancy (summer vs. winter) of benthic size spectra in an Arctic fjord 

      Mazurkiewicz, Mikołaj; Górska, Barbara; Renaud, Paul Eric; Legeżyńska, Joanna; Berge, Jørgen; Włodarska-Kowalczuk, Maria (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-08)
      Size spectra are important descriptors of community structure and can indicate changes in community functioning in response to shifts in environmental conditions. There are relatively few assessments of benthic size spectra, and most are based on summer samples alone. Processes influencing size spectra, such as recruitment and predation pressure, vary seasonally, and understanding this variation is ...
    • Sylfjellet: a new outcrop of the Paleogene Van Mijenfjorden Group in Svalbard 

      Jochmann, Malte Michel; Augland, Lars Eivind; Lenz, Olaf; Bieg, Gerd; Haugen, Turid; Grundvåg, Sten-Andreas; Jelby, Mads E.; Midtkandal, Ivar; Dolezych, Martina; Hjálmarsdóttir, Hanna Rósa (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-12-05)
      A hitherto unrecognized Paleogene outcrop has been discovered at Sylfjellet, a mountain located at the northern side of Isfjorden, Svalbard. The strata, which cover an area of 0.8 km2, have until now been assigned to the Lower Cretaceous succession of the Adventdalen Group. In this study, the Sylfjellet site was studied in detail to provide an updated structural and sedimentological description of ...
    • Multi-pathogen serological survey of migratory caribou herds: A snapshot in time 

      Carlsson, Anja M.; Curry, Patricia S.; Elkin, Brett T.; Russell, Donald E.; Veitch, Alasdair M.; Branigan, Marsha; Campbell, Mitch; Croft, Bruno; Cuyler, Christine; Côté, Steeve D.; Leclerc, Lise-Marie; Tryland, Morten; Nymo, Ingebjørg Helena; Kutz, Susan J. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-07-31)
      Pathogens can impact host survival, fecundity, and population dynamics even when no obvious disease is observed. Few baseline data on pathogen prevalence and diversity of caribou are available, which hampers our ability to track changes over time and evaluate impacts on caribou health. Archived blood samples collected from ten migratory caribou herds in Canada and two in Greenland were used to test ...
    • A cross-sectional and 6-year follow-up study of associations between leisure time physical activity and vertebral fracture in adults 

      Mikkilä, Saija; Calogiuri, Giovanna; Emaus, Nina; Morseth, Bente (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-17)
      <i>Introduction</i>: Vertebral fractures are common osteoporotic fractures, affecting 2–46% of the population, causing morbidity and increased risk of mortality. Physical activity has beneficial effects for bone health, including increased bone mineral density and reduced hip fractures. However, evidence concerning prevention of vertebral fractures is scarce. Therefore, the aim of this study was to ...
    • Religion og etnisitet blant japansk-brasilianere. En studie i Tomé-Açu 

      Valle, Rolv-Håkon (Master thesis; Mastergradsoppgave, 2019-11-08)
      This is a study of the diversity of religions found among Japanese-Brazilians living in the city of Quatro Bocas, in the municipality of Tomé-Açu, in the State of Pará, in the north of Brazil. It examines relations between religions and ethnicities. I conducted fieldwork, first in Quatro Bocas between September and October 2017, and then in the city of São Paulo in December 2018. I interviewed ...
    • Ansvar for skade forårsaket av rein: om gjerdehold, objektivt ansvar og medvirkning 

      Ravna, Øyvind (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-01-15)
      Reindriftsloven pålegger reineiere et objektivt ansvar for skade rein forårsaket av rein. Ansvaret har røtter tilbake til 1883 og omtales av Reindriftslovutvalget som strengt og meget omfattende. Også bufeholdere har et objektivt ansvar for skade deres dyr forårsaker. I praksis kan imidlertid bufeholderes og reindriftsutøveres ansvar på dette området arte seg nokså ulikt. I 2007 fremmet Samerettsutvalget ...