Now showing items 15881-15900 of 37183

    • Kritisk viktig, men samfunnsøkonomisk ulønnsomt … 

      Bardal, Kjersti Granås; Solvoll, Gisle; Mathisen, Terje Andreas; Østbye, Stein (Journal article; Tidsskriftartikkel, 2021-04-19)
      <p>Samferdselsprosjekter som oppleves som kritisk viktige lokalt og regionalt, vurderes ofte som samfunnsøkonomisk ulønnsomme. Med mange prosjekter som konkurrerer om begrensede offentlige midler, er det da svært viktig at beslutninger om hvilke prosjekter som skal prioriteres er velbegrunnede og gjennomtenkte. <p>Den samfunnsøkonomiske analysen skal – ved å synliggjøre tiltakenes samfunnsøkonomiske ...
    • Imputation and classification of time series with missing data using machine learning 

      Dretvik, Vilde Fonn (Mastergradsoppgave; Master thesis, 2021-06-21)
      This work is about classifying time series with missing data with the help of imputation and selected machine learning algorithms and methods. The author has used imputation to replace missing values in two data sets, one containing surgical site infection (SSI) data of 11 types of blood samples of patients over 20 days, and another data set called uwave which contain 3D accelerometer data of several ...
    • Complexity-Entropy Analysis of Chaotic and Intermittent Fluctuations in Physical Systems 

      Eilertsen, Sivert Høgli (Master thesis; Mastergradsoppgave, 2021-06-01)
      Time series from chaotic and stochastic systems share properties which can make it hard to distinguish them from each other. The Complexity-Entropy analysis provides appropriate measures of entropy and complexity and representing the calculated values in the representation space, the Complexity-Entropy plane, have been shown to be able to distinguish between time series of stochastic and chaotic ...
    • Probabilistic Load Forecasting with Deep Conformalized Quantile Regression 

      Jensen, Vilde (Master thesis; Mastergradsoppgave, 2021-06-01)
      The establishment of smart grids and the introduction of distributed generation posed new challenges in energy analytics that can be tackled with machine learning algorithms. The latter, are able to handle a combination of weather and consumption data, grid measurements, and their historical records to compute inference and make predictions. An accurate energy load forecasting is essential to assure ...
    • Investigating the Impact of Susceptibility Artifacts on Adjacent Tumors in PET/MRI through Simulated Tomography Experiments 

      Olsen, Erlend Bredal (Mastergradsoppgave; Master thesis, 2021-06-01)
      For quantitative PET imaging, attenuation correction (AC) is mandatory. Currently, all main vendors of hybrid PET/MRI systems apply a segmentation-based approach to compute a Dixon AC-map based on fat and water images derived from in- and opposed-phase MR-images. Changes in magnetic susceptibility pose major problems for MRI, which may lead to artifacts resulting in tissue misclassification in the ...
    • Extracting Information from Multimodal Remote Sensing Data for Sea Ice Characterization 

      Nilsen, Torjus (Mastergradsoppgave; Master thesis, 2021-06-01)
      Remote sensing is the discipline that studies acquisition, preparation and analysis of spectral, spatial and temporal properties of objects without direct touch or contact. It is a field of great importance to understanding the climate system and its changes, as well as for conducting operations in the Arctic. A current challenge however is that most sensory equipment can only capture one or fewer ...
    • Geochemical characteristics of sediment- and mafic rock-hosted Cu deposits in the Kåfjord area, Alta-Kvænangen Tectonic Window, Northern Norway 

      Simonsen, Sondre Stenvold (Mastergradsoppgave; Master thesis, 2021-06-15)
      The Precambrian Alta-Kvænangen Tectonic Window (AKTW) located in the northern part of Norway, hosts different types of copper mineralization. Some of Cu occurrences have been previously mined, but their geochemical and stable isotope characteristics have not been a subject of detailed investigations, and therefore the relevant ore-forming processes are still poorly understood. This study, brings new ...
    • Helsesykepleieres arbeid med matoverfølsomhet hos førskolebarn En kvalitativ studie om hvordan helsesykepleiere ser på sitt kunnskapsgrunnlag. 

      Pedersen, Marita (Mastergradsoppgave; Master thesis, 2021-05-03)
      Bakgrunn: Matoverfølsomhet er et stort og vedvarende folkehelseproblem. Forekomsten er usikker, men i Europa beregnes det at mellom 11-26 millioner av mennesker lider av matallergi. Prevalensen topper seg i barneårene til mellom 5% og 8%, og den høyeste insidensen er i barnets første leveår. Helsesykepleiere er den yrkesgruppen som tettest følger opp barn, ungdom og deres familier. De er ofte ...
    • The Effects of Perinatal Fluoxetine Exposure on Social and Non-Social Investigation Behaviors in a Novel Environment 

      Johansen, Jesper Solheim; Sylte, Ole Christian (Mastergradsoppgave; Master thesis, 2020-07-31)
      Selective serotonin reuptake inhibitors (SSRIs) are increasingly prescribed as medication for various affective disorders during pregnancy. SSRIs cross the placenta and affect serotonergic neurotransmission in the fetus, but the neurobehavioral consequences for the offspring remain largely unclear. Recent research has linked perinatal SSRI exposure to alterations in both social and non-social ...
    • Arabismos en el español: Un análisis léxico de arabismos referidos a humanos 

      Larsen, Jan Steffen (Mastergradsoppgave; Master thesis, 2021-05-13)
      The Spanish language is, as many know, one of the languages derived from Latin. What distinguishes Spanish from the other languages derived from Latin is the influence of Arabic through the Arabic conquest of the Iberian Peninsula. Several scholars have studied the Arabic words that have been incorporated into the Spanish vocabulary through extensive contact between the speakers of the two languages. ...
    • La posición de los adjetivos adverbiales de modo en español; Estudio empírico y propuesta de análisis 

      Eidesen, Emil Jentoft (Mastergradsoppgave; Master thesis, 2021-05-12)
      In Spanish, modal adjectives are generally presented as a class of units which, when used inside a noun phrase, is usually placed before the noun, albeit with ill-defined exceptions that allow them to be used after the noun. This corpus-based study aims to explore and better define the conditions that allow adjectives to be used postnominally, by semantically categorising a substantial quantity of ...
    • Inhibition of bacterial and human zinc-metalloproteases by bisphosphonate- and catechol-containing compounds 

      Rahman, Fatema; Nguyen, Tra-Mi; Adekoya, Olayiwola; Campestre, Cristina; Tortorella, Paolo; Sylte, Ingebrigt; Winberg, Jan-Olof (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-23)
      Compounds containg catechol or bisphosphonate were tested as inhibitors of the zinc metalloproteases, thermolysin (TLN), pseudolysin (PLN) and aureolysin (ALN) which are bacterial virulence factors, and the human matrix metalloproteases MMP-9 and −14. Inhibition of virulence is a putative strategy in the development of antibacterial drugs, but the inhibitors should not interfere with human enzymes. ...
    • The significance of knowledge readiness for co-creation in university industry collaborations 

      Mathisen, Line; Jørgensen, Eva Jenny Benedikte (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-10)
      This study explores value co-creation in university industry collaborations. The study is inspired by the constructivist approach to grounded theory and self-ethnography and based on interviews with 27 informants (eleven industry mentors and 16 academics) engaged in university industry collaborations. The findings suggest that co-creation depends on knowledge readiness and knowledge readiness develops ...
    • Strong macrobenthic community differentiation among sub-Arctic deep fjords on small spatial scales 

      Kokarev, Valentin; Tachon, Mathieu; Austad, Marthe; Mcgovern, Maeve; Reiss, Henning (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-02-16)
      Fjords play an important role in carbon cycling and sequestration, but the burial of organic matter in sediments strongly depends on the composition of macrobenthic communities. We studied three deep, sub-Arctic fjords located in northern Norway to assess the community differentiation of neighbouring fjords and the underlying environmental drivers. The fjords have relatively deep depositional basins ...
    • Ventilation History of the Nordic Seas Deduced from Pelagic‐Benthic Radiocarbon Age Offsets 

      Telesiński, Maciej M.; Ezat, Mohamed; Muschitiello, Francesco; Bauch, Henning A.; Spielhagen, Robert F. (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-03-24)
      Changes in ocean circulation are considered a major driver of centennial-to-millennial scale climate variability during the last deglaciation. Using four sediment records from the Nordic Seas, we studied radiocarbon ventilation ages in subsurface and bottom waters to reconstruct past variations in watermass overturning. Planktic foraminiferal ages show significant spatial variability over most of ...
    • Cross-platform application of a sea ice classification method considering incident angle dependency of backscatter intensity and its use in separating level and deformed ice 

      Guo, Wenkai; Itkin, Polona; Lohse, Johannes; Johansson, Malin; Doulgeris, Anthony Paul (Journal article; Tidsskriftartikkel; Peer reviewed, 2021)
      Wide-swath C-band synthetic aperture radar (SAR) has been used for sea ice classification and estimates of sea ice drift and deformation since it first became widely available in the 1990s. Here, we examine the potential to distinguish surface features created by sea ice deformation using ice type classification of SAR data. To perform this task with extended spatial and temporal coverage, we ...
    • Rettsforfølgelse av trollfolk i Europa, Finnmark og Kjelvik 

      Hagen, Rune Blix (Lecture; Forelesning, 2020-10-01)
    • Newly-formed sea ice distinction near the oil platform Prirazlomnaya in the Pechora Sea using polarimetric Radarsat-2 SAR observations 

      Ivonin, Dmitry; Ivanov, Andrey; Johansson, Malin; Brekke, Camilla (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-01)
      A polarimetric approach developed to discriminate oil slicks and look-alikes was used to study the polarimetric properties of newly-formed ice (NFI) observed near the Prirazlomnaya oil platform. This approach is based on the multipolarization parameter called Resonant to Non-resonant signal Damping (RND), which is related to the ratio between the ice damping and the short wind waves and wave breakings. ...
    • Suggesting an Extensive Interpretation of the Concept of Novelty That Looks at the Bio-Cultural Dimension of Food 

      Poto, Margherita Paola; Morel, Mathilde (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-30)
      “Novel food” in the European Union’s (EU) legal terms refers to any food that was not used for human consumption to a significant degree within the EU before 15 May 1997 (Regulation 2015/2283/EU (2015)). Placing novel food on the market requires a safety assessment when such novelty is ascertained, with the consequent need of an authorization procedure that is not required for food traditionally ...
    • Effects of outplanting time on growth, shedding and quality of Saccharina latissima (Phaeophyceae) in its northern distribution range 

      Matsson, Böris Sanna Christina A; Metaxas, Anna; Forbord, Silje; Kristiansen, Svein; Handå, Aleksander; Bluhm, Bodil (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-04-30)
      To reach the goal of large-scale seaweed cultivation in Norway and the rest of Europe, new knowledge about the commercially important kelp species <i>Saccharina latissima</i> is needed. Efforts to maximise biomass by outplanting the seaweed in different seasons can affect seaweed quality. Here, we investigate the effects of outplanting time (February, April, and May) when cultivating <i>S. latissima</i> ...