Now showing items 4961-4980 of 36124

    • Hydrography, inorganic nutrients and chlorophyll a linked to sea ice cover in the Atlantic Water inflow region north of Svalbard 

      Renner, Angelika; Bailey, Allison Michelle; Reigstad, Marit; Sundfjord, Arild; Chierici, Melissa; Jones, Elizabeth Marie (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-04)
      Changes in the inflow of Atlantic Water (AW) and its properties to the Arctic Ocean bring more warm water, contribute to sea ice decline, promote borealisation of marine ecosystems, and affect biological and particularly primary productivity in the Eurasian Arctic Ocean. One of the two branches of AW inflow follows the shelf break north of Svalbard, where it dominates oceanographic conditions, ...
    • Improving traffic-related air pollution estimates by modelling minor road traffic volumes 

      Alvarado-Molina, Miguel; Curto, Ariadna; Wheeler, Amanda J.; Tham, Rachel; Cerin, Ester; Nieuwenhuijsen, Mark; Vermeulen, Roel; Donaire-Gonzalez, David (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-07)
      Accurately estimating annual average daily traffic (AADT) on minor roads is essential for assessing traffic-related air pollution (TRAP) exposure, particularly in areas where most people live. Our study assessed the direct and indirect external validity of three methods used to estimate AADT on minor roads in Melbourne, Australia. We estimated the minor road AADT using a fixed-value approach ...
    • Physical activity, residential greenness, and cardiac autonomic function 

      Korpisaari, Maija; Puhakka, Soile; Farrahi, Vahid; Niemelä, Maisa; Tulppo, Mikko; Ikäheimo, Tiina Maria Anneli; Korpelainen, Raija; Lankila, Tiina (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-28)
      Purpose: This population-based study examines the associations between physical activity (PA), residential environmental greenness, and cardiac health measured by resting short-term heart rate variability (HRV).<p> <p>Methods: Residential greenness of a birth cohort sample (n=5433) at 46 years was measured with normalized difference vegetation index (NDVI) by fixing a 1km buffer around each ...
    • Managing persistent physical symptoms when being social and active is the norm: a qualitative study among young people in Denmark 

      Andersen, Julie Høgsgaard; Risør, Mette Bech; Frostholm, Lisbeth; Rask, Mette Trøllund; Rosendal, Marianne; Rask, Charlotte Ulrikka (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-07)
      Background An increasing number of young people in Western countries report persistent physical symptoms (PPS). PPS may disturb everyday activities and they may have negative consequences for later adult mental and physical health. Still little is known about how young people handle PPS in their everyday lives. This study examines how young people with PPS attempt to manage their symptoms while ...
    • Evaluating Deep Q-Learning Algorithms for Controlling Blood Glucose in In Silico Type 1 Diabetes 

      Angel, Tejedor H Miguel; Hjerde, Sigurd; Myhre, Jonas Nordhaug; Godtliebsen, Fred (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-07)
      Patients with type 1 diabetes must continually decide how much insulin to inject before each meal to maintain blood glucose levels within a healthy range. Recent research has worked on a solution for this burden, showing the potential of reinforcement learning as an emerging approach for the task of controlling blood glucose levels. In this paper, we test and evaluate several deep Q-learning algorithms ...
    • Abrupt permafrost thaw triggers activity of copiotrophs and microbiome predators 

      Scheel, Maria; Zervas, Athanasios; Rijkers, Ruud; Tveit, Alexander Tøsdal; Ekelund, Flemming; Campuzano Jiménez, Francisco; Christensen, Torben R.; Jacobsen, Carsten S. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-05)
      Permafrost soils store a substantial part of the global soil carbon and nitrogen. However, global warming causes abrupt erosion and gradual thaw, which make these stocks vulnerable to microbial decomposition into greenhouse gases. Here, we investigated the microbial response to abrupt in situ permafrost thaw. We sequenced the total RNA of a 1 m deep soil core consisting of up to 26 500-year-old permafrost ...
    • Atlantification influences zooplankton communities seasonally in the northern Barents Sea and Arctic Ocean 

      Wold, Anette; Hop, Haakon; Svensen, Camilla; Søreide, Janne; Assmann, Karen M.; Ormanzcyk, Mateusz; Kwaśniewski, Sławomir (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-29)
      The Barents Sea is undergoing rapid ocean warming with less sea ice and increased Atlantic inflow, shifting the pelagic ecosystem towards a more boreal one, a process referred to as Atlantification. While such changes have already been documented in the southern and central Barents Sea, less is known about the degree of Atlantification in the northern Barents Sea and Arctic Ocean. In this seasonal ...
    • Mammographic features and risk of breast cancer death among women with invasive screen-detected cancer in BreastScreen Norway 1996–2020 

      Moshina, Nataliia; Backmann, Heinrich August; Skaane, Per; Hofvind, Solveig Sand-Hanssen (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-08)
      Objectives We explored associations between mammographic features and risk of breast cancer death among women with small (<15 mm) and large (≥15 mm) invasive screen-detected breast cancer.<p> <p>Methods We included data from 17,614 women diagnosed with invasive breast cancer as a result of participation in BreastScreen Norway, 1996–2020. Data on mammographic features (mass, spiculated mass, ...
    • Dementia Disease Initiation: Demographically adjusted norms based on Scandinavian samples and comparison with published norms from North America 

      Espenes, Johan Jacob (Doctoral thesis; Doktorgradsavhandling, 2023-12-14)
      <p><i>Background:</i> Norms are necessary for interpreting neuropsychological test scores. In Norway and Sweden, there is a lack of local norms on neuropsychological tests. Consequently, Scandinavians are frequently norm-referenced to participants from North America tested decades prior. However, factors such as time of assessment, language, population differences in average performance on cognitive ...
    • Regression-based normative data for the D-KEFS Color-Word Interference Test in Norwegian adults ages 20–85 

      Espenes, Johan Jacob; Lorentzen, Ingrid Myrvoll; Eliassen, Ingvild Vøllo; Hessen, Erik; Waterloo, Knut K; Timón, Santiago; Fladby, Tormod; Walhovd, Kristine Beate; Fjell, Anders Martin; Kirsebom, Bjørn-Eivind Seljelid (Journal article; Tidsskriftartikkel, 2023-11-16)
      <p><i>Objective:</i> The Delis-Kaplan Executive Function System (D-KEFS) Color-Word-Interference Test (CWIT; AKA Stroop test) is a widely used measure of processing speed and executive function. While test materials and instructions have been translated to Norwegian, only American age-adjusted norms from D-KEFS are available in Norway. We here develop norms in a sample of 1011 Norwegians between 20 ...
    • Mastering the Arctic? Political Culture and colonialism in the Russian Far North 

      Hodgson, Kara Kathleen (Doctoral thesis; Doktorgradsavhandling, 2023-12-13)
      This case study of colonialism in the Russian Arctic asks (1) Why is Moscow attempting to (re)colonize its Arctic region? (2) How can we understand the relationship between the Russian state and its Arctic region/residents? (3) What are the foundations of this relationship and how entrenched are they? It finds that internal and resource colonialism are occurring, that Moscow’s current colonialist ...
    • Pharmaceutical Care Network Europe definition of quality indicators for pharmaceutical care: a systematic literature review and international consensus development 

      Fujita, Kenji; Halvorsen, Kjell Hermann; Sato, Noriko; Jazbar, Janja; Modamio, Pilar; Waltering, Isabel; De Wulf, Isabelle; Westerlund, Tommy; Chen, Timothy F.; Teichert, Martina (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-30)
      Background Over the past 40 years, the tasks of pharmacists have shifted from logistic services to pharmaceutical care (PhC). Despite the increasing importance of measuring quality of care, there is no general defnition of Quality Indicators (QIs) to measure PhC. Recognising this, a working group in a European association of PhC researchers, the Pharmaceutical Care Network Europe (PCNE), was ...
    • Testing for the fitness benefits of natural transformation during community-embedded evolution 

      Winter, Macaulay; Harms, Klaus; Johnsen, Pål Jarle; Buckling, Angus; Vos, Michiel (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-01)
      Natural transformation is a process where bacteria actively take up DNA from the environment and recombine it into their genome or reconvert it into extra-chromosomal genetic elements. The evolutionary benefits of transformation are still under debate. One main explanation is that foreign allele and gene uptake facilitates natural selection by increasing genetic variation, analogous to meiotic ...
    • Colonic distribution of FMT by different enema procedures compared to colonoscopy – proof of concept study using contrast fluid 

      Skjevling, Linn; Hanssen, Hege Marie; Valle, Per Christian; Goll, Rasmus; Juul, Frederik Emil; Arlov, Øystein; Johnsen, Peter Holger (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-23)
      Background Fecal microbiota transplantation (FMT) has become an important treatment method in recurrent Clostridioides difficile infections and is under investigation as a treatment for several other diseases. FMT’s mechanism of action is assumed to be through alterations of the colon microbiota. FMT can be delivered by several methods, but few studies have directly compared how FMT is distributed ...
    • Statistical experiment analysis of wear and mechanical behaviour of abaca/sisal fiber-based hybrid composites under liquid nitrogen environment 

      Natrayan, L.; Surakasi, Raviteja; Paramasivam, Prabhu; Dhanasekaran, Seshathiri; Kaliappan, S.; Patil, Pravin P. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-04)
      Ice accretion on various onshore and offshore infrastructures imparts hazardous effects sometimes beyond repair, which may be life-threatening. Therefore, it has become necessary to look for ways to detect and mitigate ice. Some ice mitigation techniques have been tested or in use in aviation and railway sectors, however, their applicability to other sectors/systems is still in the research phase. ...
    • A review of infrared thermography applications for ice detection and mitigation 

      Adeel, Yousuf; Khawaja, Hassan Abbas; Virk, Muhammad Shakeel (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-18)
      Ice accretion on various onshore and offshore infrastructures imparts hazardous effects sometimes beyond repair, which may be life-threatening. Therefore, it has become necessary to look for ways to detect and mitigate ice. Some ice mitigation techniques have been tested or in use in aviation and railway sectors, however, their applicability to other sectors/systems is still in the research phase. ...
    • Automatic identification of chemical moieties 

      Lederer, Jonas; Gastegger, Michael; Schütt, Kristof T.; Kampffmeyer, Michael Christian; Müller, Klaus-Robert; Unke, Oliver T. (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-30)
      In recent years, the prediction of quantum mechanical observables with machine learning methods has become increasingly popular. Message-passing neural networks (MPNNs) solve this task by constructing atomic representations, from which the properties of interest are predicted. Here, we introduce a method to automatically identify chemical moieties (molecular building blocks) from such representations, ...
    • Bulky, electron-rich, renewable: analogues of Beller's phosphine for cross-couplings 

      van der Westhuizen, Danielle; Castro, Abril C; Hazari, Nilay; Gevorgyan, Ashot (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-30)
      In recent years, considerable progress has been made in the conversion of biomass into renewable chemicals, yet the range of value-added products that can be formed from biomass remains relatively small. Herein, we demonstrate that molecules available from biomass serve as viable starting materials for the synthesis of phosphine ligands, which can be used in homogeneous catalysis. Specifically, ...
    • Involvement of A13 dopaminergic neurons in prehensile movements but not reward in the rat 

      Garau, Celia; Hayes, Jessica; Chiacchierini, Giulia; Mccutcheon, James Edgar; Apergis-Schoute, John (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-09)
      Tyrosine hydroxylase (TH)-containing neurons of the dopamine (DA) cell group A13 are well positioned to impact known DA-related functions as their descending projections innervate target regions that regulate vigilance, sensory integration, and motor execution. Despite this connectivity, little is known regarding the functionality of A13-DA circuits. Using TH-specific loss-of-function methodology ...
    • Complex Systems Methods Characterizing Nonlinear Processes in the Near-Earth Electromagnetic Environment: Recent Advances and Open Challenges 

      Balasis, Georgios; Balikhin, Michael A.; Chapman, Sandra; Consolini, Giuseppe; Daglis, Ioannis A.; Donner, Reik V.; Kurths, Jürgen; Paluš, Milan; Runge, Jakob; Tsurutani, Bruce T.; Vassiliadis, Dimitris; Wing, Simon; Gjerloev, Jesper W.; Johnson, Jay; Materassi, Massimo; Alberti, Tommaso; Papadimitriou, Constantinos; Manshour, Pouya; Boutsi, Adamantia Zoe; Stumpo, Mirko (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-12)
      Learning from successful applications of methods originating in statistical mechanics, complex systems science, or information theory in one scientific field (e.g., atmospheric physics or climatology) can provide important insights or conceptual ideas for other areas (e.g., space sciences) or even stimulate new research questions and approaches. For instance, quantification and attribution of ...