Now showing items 19041-19060 of 37088

    • Quantification of gear inflicted damages on trawl-caught haddock in the Northeast Atlantic fishery 

      Sistiaga, Manu; Herrmann, Bent; Brinkhof, Jesse; Larsen, Roger B.; Jacques, Nadine; Santos, Juan; Gjøsund, Svein Helge (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-12)
      External damages are indicators of the overall quality of fish and fish welfare. Haddock is an important commercial species widespread in the North Atlantic, but few studies related to quality have been carried out on this species. We studied the levels of external damages on haddock captured with a demersal trawl in the Northeast Atlantic. Further, we investigated to what extent the compulsory ...
    • Targeting mitochondrial oxidative stress with MitoQ reduces NET formation and kidney disease in lupus-prone MRL-lpr mice 

      Fortner, KA; Blanco, Luz P.; Buskiewicz, I; Huang, N; Gibson, PC; Cook, DL; Pedersen, Hege Lynum; Yuen, PST; Murphy, MP; Perl, A; Kaplan, Mariana J.; Budd, RC (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-04-16)
      <i>Objectives</i> - Recent investigations in humans and mouse models with lupus have revealed evidence of mitochondrial dysfunction and production of mitochondrial reactive oxygen species (mROS) in T cells and neutrophils. This can provoke numerous cellular changes including oxidation of nucleic acids, proteins, lipids and even induction of cell death. We have previously observed that in T cells ...
    • Cold Seeps in a Warming Arctic: Insights for Benthic Ecology 

      Åström, Emmelie; Sen, Arunima; Carroll, Michael Leslie; Carroll, JoLynn (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-21)
      Cold-seep benthic communities in the Arctic exist at the nexus of two extreme environments; one reflecting the harsh physical extremes of the Arctic environment and another reflecting the chemical extremes and strong environmental gradients associated with seafloor seepage of methane and toxic sulfide-enriched sediments. Recent ecological investigations of cold seeps at numerous locations on the ...
    • Plasma levels of interleukin 27 in falciparum malaria is increased independently of co-infection with HIV: Potential immune-regulatory role during malaria 

      Otterdal, Kari; Berg, Aase; Michelsen, Annika; Patel, Sam; Gregersen, Ida; Sagen, Ellen Lund; Halvorsen, Bente; Yndestad, Arne; Ueland, Thor; Langeland, Nina; Aukrust, Pål (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-21)
      <i>Background</i> - The immune response during falciparum malaria mediates both harmful and protective effects on the host; however the participating molecules have not been fully defined. Interleukin (IL)-27 is a pleiotropic cytokine exerting both inflammatory and anti-inflammatory effects, but data on IL-27 in malaria patients are scarce.<p><p> <i>Methods</i> - Clinical data and blood samples ...
    • Comparison of antimicrobial prescribing for dental and oral infections in England and Scotland with Norway and Sweden and their relative contribution to national consumption 2010–2016 

      Smith, Andrew; Al-Mahdi, Rania; Malcolm, William; Palmer, Nikolaus; Dahlén, Gunnar; Al-Haroni, Mohammed (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-16)
      <i>Background</i> - Prescribing in dental practice has a relatively small but important contribution to the quantity of antibiotics prescribed in primary care. This study aimed to analyse antibiotic prescribing in dentistry over time (2010–2016) in 4 different Northern European countries and their relative contribution to national outpatients consumption.<p><p> <i>Methods</i> - This retrospective ...
    • U–Pb dating of calcite in ancient carbonates for age estimates of syn- to post-depositional processes: a case study from the upper Ediacaran of Finnmark, Arctic Norway 

      Meinhold, Guido; Roberts, Nick M W; Arslan, Arzu; Jensen, Sören; Ebbestad, Jan Ove R.; Högström, Anette; Høyberget, Magne; Agic, Heda; Palacios, Teodoro; Taylor, Wendy L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-10)
      Results of <i>in situ</i> U–Pb dating of calcite spherulites, cone‐in‐cone (CIC) calcite and calcite fibres from a calcareous concretion of the upper Ediacaran of Finnmark, Arctic Norway, are reported. Calcite spherulites from the innermost layers of the concretion yielded a lower intercept age of 563 ± 70 Ma, which although imprecise, is within uncertainty of the age of sedimentation based on fossil ...
    • Combining selection models and population structures to inform fisheries management: a case study on hake in the Mediterranean bottom trawl fishery 

      Mytilineou, Chryssi; Herrmann, Bent; Kavadas, Stefanos; Smith, Chris J.; Megalofonou, Persefoni (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-06-10)
      The reduction of juvenile catch and discards are important targets in fisheries policy. This work examines how selection models can predict the size structure (LFD) of discards and landings considering the effects of area, time period, gear and fisher behaviour. Additional exploitation indicators related to the gear used, fisher's selection pattern, and discards were also estimated. The approach is ...
    • Internal and External Factors in Heritage Language Acquisition: Evidence from Heritage Russian in Israel, Germany, Norway, Latvia and the UK 

      Rodina, Yulia; Kupisch, Tanja; Meir, Natalia; Mitrofanova, Natalia; Urek, Olga; Westergaard, Marit (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-11)
      In this paper, we consider elicited production data (real and nonce words tasks) from five different studies on the acquisition of grammatical gender in Heritage Russian, comparing children growing up in Germany, Israel, Norway, Latvia, and the United Kingdom. The children grow up in diverse heritage language backgrounds, ranging from small groups (in Norway) to large communities (in Latvia). ...
    • Navs vurdering av brukeres bistandsbehov - Rettssikkerhet ved overgang til arbeid 

      Kane, Aina Aune (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-13)
      Ut fra Navs samfunnsmandat om å fremme arbeidsinkludering for brukere med ulike ressurser og behov har jeg undersøkt hvordan Nav-ansatte erfarer sitt arbeid med å fatte vedtak om brukernes bistandsbehov. Jeg har drøftet hvordan rettsriktig vedtak fordrer en tilstrekkelig kartlegging, hvordan kvaliteten i beslutningsgrunnlaget fremmes gjennom brukerens deltakelse, samt hvordan brukernes bistandsbehov ...
    • Artificial light during the polar night disrupts Arctic fish and zooplankton behavior down to 200 m depth 

      Berge, Jørgen; Geoffroy, Maxime; Daase, Malin; Cottier, Finlo Robert; Priou, Pierre; Cohen, Jonathan H.; Johnsen, Geir; McKee, David; Kostakis, I; Renaud, Paul E.; Vogedes, Daniel Ludwig; Anderson, Philip J.; Last, Kim; Gauthier, Stephane (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-05)
      For organisms that remain active in one of the last undisturbed and pristine dark environments on the planet—the Arctic Polar Night—the moon, stars and aurora borealis may provide important cues to guide distribution and behaviours, including predator-prey interactions. With a changing climate and increased human activities in the Arctic, such natural light sources will in many places be masked by ...
    • Higher Weight Spectra of Veronese Codes 

      Johnsen, Trygve; Verdure, Hugues (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-10-18)
      We study q-ary linear codes C obtained from Veronese surfaces over finite fields.We show how one can find the higher weight spectra of these codes, or equivalently, the weight distribution of all extension codes of C over all field extensions of the ground field. Our methods will be a study of the Stanley-Reisner rings of a series of matroids associated to each code C.
    • Erfaringer med deltakelse på kommunale pårørendeskoler 

      Larsen, Lill Sverresdatter; Moholt, Jill-Marit; Hamran, Torunn; Henriksen, Nils Oddbjørn; Blix, Bodil Hansen (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-25)
      <p><i>Bakgrunn:</i> Det er sterke helsepolitiske føringer for at personer med demens skal bo hjemme så lenge som mulig, og det forventes at pårørende skal bidra i omsorgsarbeidet. Pårørendeskolen skal bidra til læring og mestring hos pårørende. <p><i>Metode:</i> Studien er basert på kvalitative intervju med 16 pårørende som hadde deltatt på pårørendeskoler i nordnorske kommuner i perioden 2010–2017. ...
    • Sampling moiré method: a tool for sensing quadratic phase distortion and its correction for accurate quantitative phase microscopy 

      Jayakumar, Nikhil; Ahmad, Azeem; Mehta, Dalip Singh; Ahluwalia, Balpreet Singh (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-24)
      The advantages of quantitative phase microscopy (QPM) such as label-free imaging with high spatial sensitivity, live cell compatibility and high-speed imaging makes it viable for various biological applications. The measurement accuracy of QPM strongly relies on the shape of the recorded interferograms, whether straight or curved fringes are recorded during the data acquisition. Moreover, for a ...
    • Anthropocene rockfalls travel farther than prehistoric predecessors 

      Vick, Louise Mary; Borella, Josh Walter; Quigley, Mark (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-09-02)
      Human modification of natural landscapes has influenced surface processes in many settings on Earth. Quantitative data comparing the distribution and behavior of geologic phenomena before and after human arrival are sparse but urgently required to evaluate possible anthropogenic influences on geologic hazards. We conduct field and imagery-based mapping, statistical analysis, and numerical modeling ...
    • Product Inhibition of Biological Hydrogen Production in Batch Reactors 

      Das, Subhashis; Calay, Rajnish K; Chowdhury, Ranjana; Nath, kaustav; Eregno, Fasil (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-12)
      In this paper, the inhibitory effects of added hydrogen in reactor headspace on fermentative hydrogen production from acidogenesis of glucose by a bacterium, Clostridium acetobutylicum, was investigated experimentally in a batch reactor. It was observed that hydrogen itself became an acute inhibitor of hydrogen production if it accumulated excessively in the reactor headspace. A mathematical model ...
    • Bo i Nord i Tromsø, fra idé til realitet. Et eksperiment for klimavennlige boliger og sosiale boformer 

      Bjørnsen, Tone (Master thesis; Mastergradsoppgave, 2020-06-02)
      I denne oppgaven beskrives Bo i Nord et boligområde sentralt på Tromsøya fra de første ideene, via det kommunale planarbeidet og til området stod ferdig. Boligområdet ble anlagt i 1990 og var planlagt som en boligutstilling i tilknyttet organisasjonen Winter Cities, og skulle vise eksempler på gode klimatilpassede boliger i arktiske strøk. Bo i Nord er et tettbygget småhusområde hvor boligene ligger ...
    • Early Detection of Change by Applying Scale-Space Methodology to Hyperspectral Images 

      Uteng, Stig; Johansen, Thomas Haugland; Zaballos, Jose Ignacio; Ortega, Samuel; Holmström, Lasse; Callico, Gustavo M.; Fabelo, Himar; Godtliebsen, Fred (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-27)
      Given an object of interest that evolves in time, one often wants to detect possible changes in its properties. The first changes may be small and occur in different scales and it may be crucial to detect them as early as possible. Examples include identification of potentially malignant changes in skin moles or the gradual onset of food quality deterioration. Statistical scale-space methodologies ...
    • Automatic fringe pattern enhancement using truly adaptive period-guided bidimensional empirical mode decomposition 

      Gocłowski, Paweł; Trusiak, Maciej; Ahmad, Azeem; Styk, Adam; Mico, Vicente; Ahluwalia, Balpreet Singh; Patorski, Krzysztof (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-02-19)
      Fringe patterns encode the information about the result of a measurement performed via widely used optical full-field testing methods, e.g., interferometry, digital holographic microscopy, moiré techniques, structured illumination etc. Affected by the optical setup, changing environment and the sample itself fringe patterns are often corrupted with substantial noise, strong and uneven background ...
    • Sub-nanometer height sensitivity by phase shifting interference microscopy under environmental fluctuations 

      Ahmad, Azeem; Dubey, Vishesh Kumar; Butola, Ankit; Tinguely, Jean-Claude; Ahluwalia, Balpreet Singh; Mehta, Dalip Singh (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-03-18)
      Phase shifting interferometric (PSI) techniques are among the most sensitive phase measurement methods. Owing to its high sensitivity, any minute phase change caused due to environmental instability results into, inaccurate phase measurement. Consequently, a well calibrated piezo electric transducer (PZT) and highly-stable environment is mandatory for measuring accurate phase map using PSI implementation. ...
    • Higher spatial than seasonal variation in floodplain soil eukaryotic microbial communities 

      Fournier, Bertrand; Samaritani, Emanuela; Frey, Beat; Seppey, Christophe Victor W.; Lara, Enrique; Heger, Thierry J.; Mitchell, Edward A.D. (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-05-10)
      Beta diversity is a key component of biodiversity with implications ranging from species dynamics to ecosystem functioning. However, β-diversity and its drivers have received little attention, especially for micro-eukaryotes which play key roles in soil functioning. We studied the diversity of soil micro-eukaryotes in a Swiss lowland floodplain using high-throughput Illumina sequencing of soil DNA. ...