845 results on '"Norwegian Research Centre"'
Search Results
2. Evaluating the Back 2 School Program in a Norwegian Setting: A Multicenter Pilot Study
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UiT The Arctic University of Norway, NORCE Norwegian Research Centre AS, Regionsenter for barn og unges psykiske helse, University of Bergen, University of Stavanger, Norwegian University of Science and Technology, and Toril Sorheim Nilsen, Associate Professor
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- 2024
3. ALzheimer and MUsic THerapy: Effects of Music Lessons on Brain Plasticity, Mood, and Quality of Life in Alzheimer Patients (ALMUTH)
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NORCE Norwegian Research Centre AS, Bergen Municipality, and Stefan Koelsch, Professor
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- 2024
4. Vitamin B12 Supplementation During Pregnancy on Cognitive Development (VitaPreg)
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Tribhuvan University Teaching Hospital, Institute Of Medicine., NORCE Norwegian Research Centre AS, and Sykehuset Innlandet HF
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- 2024
5. Vitamin B12, Neurodevelopment and Growth in Nepal (BeLive)
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Tribhuvan University, Nepal and NORCE Norwegian Research Centre AS
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- 2023
6. Enabling Parents of Children With Autism Spectrum Disorders - a Randomized Controlled Trial of Parenting Programs (ENACT)
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Helse Fonna, St. Olavs Hospital, University of Bergen, Norwegian University of Science and Technology, and NORCE Norwegian Research Centre AS
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- 2023
7. Iodine Status During Pregnancy and Its Effect on Infant Development. (Mommy'sFood)
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NORCE Norwegian Research Centre AS and Marian Kjellevold, PhD, Scientist
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- 2023
8. HealthIntro - Health Perspective in the Introduction Program (HealthIntro)
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NORCE Norwegian Research Centre AS, FAFO Research foundation, Harstad municipality, Senja municipality, Sør-Varanger municipality, and Johanna Laue, associate professor
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- 2021
9. The Effect of Diet on Learning Abilities for Children in Kindergarden
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NORCE Norwegian Research Centre AS, Ludwig-Maximilians - University of Munich, and Jannike Øyen, PhD, Scientist
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- 2020
10. The annual update GLODAPv2.2023: the global interior ocean biogeochemical data product
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European Commission, Norwegian Research Centre, Universidade Federal do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), CSIC - Instituto Español de Oceanografía (IEO), Ministerio de Ciencia e Innovación (España), National Oceanic and Atmospheric Administration (US), Swedish Research Council for Sustainable Development, University of Maryland, National Science Foundation (US), Environmental Restoration and Conservation Agency (Japan), Helmholtz Association, Lauvset, Siv K., Lange, Nico, Tanhua, Toste, Bittig, Henry C., Olsen, Are, Kozyr, Alex, Álvarez-Rodríguez, Marta, Azetsu-Scott, Kumiko, Brown, Peter J., Carter, Brendan R., Cotrim da Cunha, Leticia, Hoppema, Mario, Humphreys, Matthew P., Ishii, Masao, Jeansson, Emil, Murata, Akihiko, Müller, Jens Daniel, Pérez, Fiz F., Schirnick, Carsten, Steinfeldt, Reiner, Suzuki, Toru, Ulfsbo, Adam, Velo, A., Woosley, Ryan J., Key, Robert M., European Commission, Norwegian Research Centre, Universidade Federal do Rio de Janeiro, Conselho Nacional de Desenvolvimento Científico e Tecnológico (Brasil), CSIC - Instituto Español de Oceanografía (IEO), Ministerio de Ciencia e Innovación (España), National Oceanic and Atmospheric Administration (US), Swedish Research Council for Sustainable Development, University of Maryland, National Science Foundation (US), Environmental Restoration and Conservation Agency (Japan), Helmholtz Association, Lauvset, Siv K., Lange, Nico, Tanhua, Toste, Bittig, Henry C., Olsen, Are, Kozyr, Alex, Álvarez-Rodríguez, Marta, Azetsu-Scott, Kumiko, Brown, Peter J., Carter, Brendan R., Cotrim da Cunha, Leticia, Hoppema, Mario, Humphreys, Matthew P., Ishii, Masao, Jeansson, Emil, Murata, Akihiko, Müller, Jens Daniel, Pérez, Fiz F., Schirnick, Carsten, Steinfeldt, Reiner, Suzuki, Toru, Ulfsbo, Adam, Velo, A., Woosley, Ryan J., and Key, Robert M.
- Abstract
The Global Ocean Data Analysis Project (GLODAP) is a synthesis effort providing regular compilations of surface to bottom ocean biogeochemical bottle data, with an emphasis on seawater inorganic carbon chemistry and related variables determined through chemical analysis of seawater samples. GLODAPv2.2023 is an update of the previous version, GLODAPv2.2022 (Lauvset et al., 2022). The major changes are as follows: data from 23 new cruises were added. In addition, a number of changes were made to the data included in GLODAPv2.2022. GLODAPv2.2023 includes measurements from more than 1.4 million water samples from the global oceans collected on 1108 cruises. The data for the now 13 GLODAP core variables (salinity, oxygen, nitrate, silicate, phosphate, dissolved inorganic carbon, total alkalinity, pH, chlorofluorocarbon-11 (CFC-11), CFC-12, CFC-113, CCl4, and SF6) have undergone extensive quality control with a focus on the systematic evaluation of bias. The data are available in two formats: (i) as submitted by the data originator but converted to World Ocean Circulation Experiment (WOCE) exchange format and (ii) as a merged data product with adjustments applied to minimize bias. For the present annual update, adjustments for the 23 new cruises were derived by comparing those data with the data from the 1085 quality-controlled cruises in the GLODAPv2.2022 data product using crossover analysis. SF6 data from all cruises were evaluated by comparison with CFC-12 data measured on the same cruises. For nutrients and ocean carbon dioxide (CO2), chemistry comparisons to estimates based on empirical algorithms provided additional context for adjustment decisions. The adjustments that we applied are intended to remove potential biases from errors related to measurement, calibration, and data-handling practices without removing known or likely time trends or variations in the variables evaluated. The compiled and adjusted data product is believed to be consistent to better than 0.
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- 2024
11. Diet and Learning Abilities in Norwegian Youths
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NORCE Norwegian Research Centre AS, University of Tromso, and Lisbeth Dahl, PhD
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- 2016
12. Health Effects From Removal of Amalgam Restorations in Patients With Symptoms Allegedly Related to Dental Amalgam
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NORCE Norwegian Research Centre AS and Lars Bjorkman, Principal Researcher
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- 2012
13. Regional climate downscaling over Europe: perspectives from the EURO-CORDEX community
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Jacob, Daniela, Teichmann, Claas, Sobolowski, Stefan, Katragkou, Eleni, Anders, Ivonne, Belda, Michal, Benestad, Rasmus, Boberg, Fredrik, Buonomo, Erasmo, Cardoso, Rita M., Casanueva, Ana, Christensen, Ole B., Christensen, Jens Hesselbjerg, Coppola, Erika, De Cruz, Lesley, Davin, Edouard L., Dobler, Andreas, Domínguez, Marta, Fealy, Rowan, Fernandez, Jesus, Gaertner, Miguel Angel, García-Díez, Markel, Giorgi, Filippo, Gobiet, Andreas, Goergen, Klaus, Gómez-Navarro, Juan José, Alemán, Juan Jesús González, Gutiérrez, Claudia, Gutiérrez, José M., Güttler, Ivan, Haensler, Andreas, Halenka, Tomáš, Jerez, Sonia, Jiménez-Guerrero, Pedro, Jones, Richard G., Keuler, Klaus, Kjellström, Erik, Knist, Sebastian, Kotlarski, Sven, Maraun, Douglas, van Meijgaard, Erik, Mercogliano, Paola, Montávez, Juan Pedro, Navarra, Antonio, Nikulin, Grigory, de Noblet-Ducoudré, Nathalie, Panitz, Hans-Juergen, Pfeifer, Susanne, Piazza, Marie, Pichelli, Emanuela, Pietikäinen, Joni-Pekka, Prein, Andreas F., Preuschmann, Swantje, Rechid, Diana, Rockel, Burkhardt, Romera, Raquel, Sánchez, Enrique, Sieck, Kevin, Soares, Pedro M. M., Somot, Samuel, Srnec, Lidija, Sørland, Silje Lund, Termonia, Piet, Truhetz, Heimo, Vautard, Robert, Warrach-Sagi, Kirsten, Wulfmeyer, Volker, Climate Service Center Germany (GERICS), Helmholtz-Zentrum Geesthacht, Hamburg, Germany, NORCE Norwegian Research Centre, The Bjerknes Centre for Climate Research, Bergen, Norway, Department of Meteorology and Climatology, School of Geology, Aristotle University of Thessaloniki, Thessaloniki, Greece, Central Institute for Meteorology and Geodynamics (ZAMG), Vienna, Austria, Department of Atmospheric Physics, Faculty of Mathematics and Physics, Charles University, Prague, Czech Republic, The Norwegian Meteorological Institute, Oslo, Norway, Danish Meteorological Institute (DMI), Copenhagen, Denmark, School of Geography and the Environment, University of Oxford, Oxford, UK, Instituto Dom Luiz (IDL), Faculdade de Ciências, Universidade de Lisboa, Lisbon, Portugal, Meteorology Group, Department of Applied Mathematics and Computer Science, Universidad de Cantabria, Santander, Spain, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark, International Centre for Theoretical Physics (ICTP), Trieste, Italy, Royal Meteorological Institute of Belgium (RMIB), Brussels, Belgium, Institute for Atmospheric and Climate Science, ETH Zurich, Zurich, Switzerland, Agencia Estatal de Meteorología, Madrid, Spain, ICARUS, Department of Geography, Maynooth University, Maynooth, Ireland, University of Castilla-La Mancha, Toledo, Spain, Centre for High-Performance Scientific Computing in Terrestrial Systems, Geoverbund ABC/J, Jülich, Germany, Regional Atmospheric Modeling Group, Department of Physics, University of Murcia, Murcia, Spain, Meteorology Group, Instituto de Física de Cantabria (CSIC-Universidad de Cantabria), Santander, Spain, Croatian Meteorological and Hydrological Service, Zagreb, Croatia, Met Office Hadley Centre, Exeter, UK, Chair of Atmospheric Processes, Brandenburg University of Technology Cottbus - Senftenberg, Cottbus, Germany, Swedish Meteorological and Hydrological Institute, Norrköping, Sweden, Meteorological Institute, University of Bonn, Bonn, Germany, Federal Office of Meteorology and Climatology MeteoSwiss, Zurich-Airport, Switzerland, Wegener Center for Climate and Global Change, University of Graz, Graz, Austria, Royal Netherlands Meteorological Institute (KNMI), De Bilt, The Netherlands, C.I.R.A., Capua, Italy, Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC), Lecce, Italy, Laboratoire des Sciences du Climat et de l’Environnement, IPSL, Unité Mixte CEA-CNRS-UVSQ, Université Paris-Saclay, Gif-sur-Yvette cédex, France, Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Karlsruhe, Germany, Finnish Meteorological Institute (FMI), Helsinki, Finland, National Center for Atmospheric Research, Boulder, USA, Helmholtz-Zentrum Geesthacht, Geesthacht, Germany, CNRM, Université de Toulouse, Météo-France, CNRS, Toulouse, France, Department of Physics and Astronomy, Ghent University, Ghent, Belgium, Institute of Physics and Meteorology, University of Hohenheim, Stuttgart, Germany, Jacob D., Teichmann C., Sobolowski S., Katragkou E., Anders I., Belda M., Benestad R., Boberg F., Buonomo E., Cardoso R.M., Casanueva A., Christensen O.B., Christensen J.H., Coppola E., De Cruz L., Davin E.L., Dobler A., Dominguez M., Fealy R., Fernandez J., Gaertner M.A., Garcia-Diez M., Giorgi F., Gobiet A., Goergen K., Gomez-Navarro J.J., Aleman J.J.G., Gutierrez C., Gutierrez J.M., Guttler I., Haensler A., Halenka T., Jerez S., Jimenez-Guerrero P., Jones R.G., Keuler K., Kjellstrom E., Knist S., Kotlarski S., Maraun D., van Meijgaard E., Mercogliano P., Montavez J.P., Navarra A., Nikulin G., de Noblet-Ducoudre N., Panitz H.-J., Pfeifer S., Piazza M., Pichelli E., Pietikainen J.-P., Prein A.F., Preuschmann S., Rechid D., Rockel B., Romera R., Sanchez E., Sieck K., Soares P.M.M., Somot S., Srnec L., Sorland S.L., Termonia P., Truhetz H., Vautard R., Warrach-Sagi K., Wulfmeyer V., Electronics and Informatics, Physics, Universidad de Cantabria, Ministerio de Economía y Competitividad (España), CSIC-UC - Instituto de Física de Cantabria (IFCA), Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), and European Commission
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IMPACTS ,Climate Research ,010504 meteorology & atmospheric sciences ,0208 environmental biotechnology ,Climate change ,ENSEMBLE ,02 engineering and technology ,Land cover ,01 natural sciences ,Klimatforskning ,COVER CHANGES ,11. Sustainability ,ddc:330 ,Regional science ,Adaptation (computer science) ,Temporal scales ,TEMPERATURE ,0105 earth and related environmental sciences ,MODEL DESCRIPTION ,Global and Planetary Change ,regional climate models, EURO-CORDEX ,Land use ,LAND-USE ,FUTURE CHANGES ,15. Life on land ,SIMULATIONS ,020801 environmental engineering ,Earth system science ,CORDEX ,Geography ,ddc:551.6 ,13. Climate action ,Earth and Environmental Sciences ,MED-CORDEX ,EURO-CORDEX ,DAILY PRECIPITATION STATISTICS ,Downscaling ,Regional climate modelling ,Regional climate models - Abstract
The European CORDEX (EURO-CORDEX) initiative is a large voluntary effort that seeks to advance regional climate and Earth system science in Europe. As part of the World Climate Research Programme (WCRP) - Coordinated Regional Downscaling Experiment (CORDEX), it shares the broader goals of providing a model evaluation and climate projection framework and improving communication with both the General Circulation Model (GCM) and climate data user communities. EURO-CORDEX oversees the design and coordination of ongoing ensembles of regional climate projections of unprecedented size and resolution (0.11° EUR-11 and 0.44° EUR-44 domains). Additionally, the inclusion of empirical-statistical downscaling allows investigation of much larger multi-model ensembles. These complementary approaches provide a foundation for scientific studies within the climate research community and others. The value of the EURO-CORDEX ensemble is shown via numerous peer-reviewed studies and its use in the development of climate services. Evaluations of the EUR-44 and EUR-11 ensembles also show the benefits of higher resolution. However, significant challenges remain. To further advance scientific understanding, two flagship pilot studies (FPS) were initiated. The first investigates local-regional phenomena at convection-permitting scales over central Europe and the Mediterranean in collaboration with the Med-CORDEX community. The second investigates the impacts of land cover changes on European climate across spatial and temporal scales. Over the coming years, the EURO-CORDEX community looks forward to closer collaboration with other communities, new advances, supporting international initiatives such as the IPCC reports, and continuing to provide the basis for research on regional climate impacts and adaptation in Europe., S.S. acknowledges the support of NOTUR/NORSTORE projects NN9280K/NS9001K and the Research Council of Norway and its basic institute support of the strategic project on Climate Services. E.K. acknowledges the support of the Greek Research & Technology Network (GRNET) for provision of technical support and facilities (HPC-ARIS). L.S. and I.G. acknowledge the support of Croatian Science Foundation project CARE (2831) and Ministry of Environment and Energy project TF/HR/P3-M1-O1-0101 (www.prilagodba-klimi.hr). J. F. acknowledges support from the Spanish R+D Programme through grant INSIGNIA (CGL2016-79210-R), co-funded by ERDF/FEDER, and the Altamira Supercomputer at Instituto de Física de Cantabria (IFCA-CSIC), member of the Spanish Supercomputing Network. P.T. acknowledges support from the Belgian Science Policy (BELSPO) within the CORDEX.be (BR/143/A2) project, and the VSC (Flemish Supercomputer Center), funded by the Research Foundation - Flanders (FWO) and the Flemish Government – department EWI.M.A.G. acknowledges support from the Spanish R+D Programme through grants CGL2013-47261-R and CGL2017-89583-R, co-funded by the European Regional Development Fund. RF acknowledges support provided by ICHEC (Irish Centre for High End Computing) and the Irish Environmental Protection Agency. K.G. and S.K. gratefully acknowledge the computing time granted through JARA-HPC on the supercomputers JUROPA and JURECA at Forschungszentrum Jülich. M.B. and T.H. acknowledge support by The Ministry of Education, Youth and Sports from the Large Infrastructures for Research, Experimental Development and Innovations project “IT4Innovations National Supercomputing Center – LM2015070” and the INTER-EXCELLENCE program LTT17007, and support by Charles University from the PROGRES Q16 program. We acknowledge the approval and support of the two Flagship Pilot Studies (the FPS on Convective phenomena at high resolution over Europe and the Mediterranean and the FPS on Land Use and Climate Across Scales) by WRCP CORDEX. We thank Merja Tölle for providing simulation CCLM5-0-9-JLU as contribution to the CORDEX-FPS “Convective phenomena at high resolution over Europe and the Mediterranean”. D. M., M.P., and H.T. gratefully acknowledge the support received via the projects HighEnd:Extremes, SPIRIT, and reclip:convex, funded by the Austrian Climate Research Programme (ACRP) of the Klima- und Energiefonds (nos. B368608, B960272, and B769999, respectively), as well as the Jülich Supercomputing Centre (JSC) for compute time on JURECA through the grant JJSC39 and the Vienna Scientific Cluster (VSC) through the grants 70992 and 71193.
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- 2020
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14. Robust Control Design of Underactuated 2 × 2 PDE-ODE-PDE Systems
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Ulf Jakob F. Aarsnes, Jean Auriol, Roman Shor, Florent Di Meglio, Laboratoire des signaux et systèmes (L2S), CentraleSupélec-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), NORCE - Norwegian Research Centre, Mekjarvik 12, N-4072, Randaberg, Norway., Centre Automatique et Systèmes (CAS), MINES ParisTech - École nationale supérieure des mines de Paris, Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL), Department of Chemical and Petroleum Engineering [Calgary], and University of Calgary
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0209 industrial biotechnology ,Control and Optimization ,Underactuation ,Computer science ,020208 electrical & electronic engineering ,Ode ,02 engineering and technology ,Neutral systems ,Transfer function ,[SPI.AUTO]Engineering Sciences [physics]/Automatic ,Mathematics::Numerical Analysis ,020901 industrial engineering & automation ,Exponential stability ,Computer Science::Systems and Control ,Control and Systems Engineering ,Robustness (computer science) ,Control theory ,Backstepping ,0202 electrical engineering, electronic engineering, information engineering ,[MATH.MATH-AP]Mathematics [math]/Analysis of PDEs [math.AP] ,Robust control - Abstract
International audience; In this paper, we design a robust stabilizing controller for a system composed of two sets of linear heterodirec-tional hyperbolic PDEs, with actuation at one boundary of one of the PDEs, and couplings at the middle boundary with ODEs in a PDE-ODE-PDE configuration. The system is underactuated since only one of the PDE systems is actuated. The design approach employs a backstepping transformation to move the undesired system couplings to the proximal boundary (where the actuation is located). We can then express this target system as a time-delay neutral system for which we can design an appropriate control law to obtain an exponentially stable target system.
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- 2021
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15. Biomarker responses and accumulation of polycyclic aromatic hydrocarbons in Mytilus trossulus and Gammarus oceanicus during exposure to crude oil
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Marie-Hélène Devier, Raisa Turja, Laura Butrimavičienė, Hélène Budzinski, Steinar Sanni, Milda Stankevičiūtė, Kari K. Lehtonen, Marine Research Centre, Finnish Environment Institute, Agnes Sjöbergin katu 2, FI-00790, Helsinki, Finland., NORCE - Norwegian Research Centre, Mekjarvik 12, N-4072, Randaberg, Norway., University of Stavanger, Nature Research Centre, Institute of Ecology, Akademijos str. 2, LT-08412, Vilnius, Lithuania., and Laboratory of Physico- and Toxico-Chemistry of the Environment (LPTC), University Bordeaux 1, Oceanic and Continental Environments and Paleoenvironments (EPOC, UMR 5805 CNRS), 351 cours de la Libération, F-33405, Talence, France.
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0106 biological sciences ,Antioxidant ,Health, Toxicology and Mutagenesis ,medicine.medical_treatment ,meriensuojelu ,biomarkkerit ,010501 environmental sciences ,01 natural sciences ,GEOF ,maaöljy ,Lipid peroxidation ,chemistry.chemical_compound ,Mussels ,merien saastuminen ,biology ,Mytilus trossulus ,General Medicine ,Pollution ,Bioaccumulation ,Polycyclic aromatic hydrocarbons ,Petroleum ,Environmental chemistry ,Micronucleus test ,[SDE]Environmental Sciences ,Research Article ,Environmental Monitoring ,PAH-yhdisteet ,pohjoiskatka ,äyriäiset ,Crude oil ,medicine ,Environmental Chemistry ,Ecotoxicology ,Animals ,Amphipoda ,14. Life underwater ,biologiset menetelmät ,0105 earth and related environmental sciences ,Mytilus ,Brackish water ,010604 marine biology & hydrobiology ,Mussel ,simpukat ,biology.organism_classification ,Gammarids ,katkat ,chemistry ,13. Climate action ,kertyminen ,altistuminen ,sinisimpukka ,Biomarkers ,Water Pollutants, Chemical - Abstract
In the brackish water Baltic Sea, oil pollution is an ever-present and significant environmental threat mainly due to the continuously increasing volume of oil transport in the area. In this study, effects of exposure to crude oil on two common Baltic Sea species, the mussel Mytilus trossulus and the amphipod Gammarus oceanicus, were investigated. The species were exposed for various time periods (M. trossulus 4, 7, and 14 days, G. oceanicus 4 and 11 days) to three oil concentrations (0.003, 0.04, and 0.30 mg L−1 based on water measurements, nominally aimed at 0.015, 0.120, and 0.750 mg L−1) obtained by mechanical dispersion (oil droplets). Biological effects of oil exposure were examined using a battery of biomarkers consisting of enzymes of the antioxidant defense system (ADS), lipid peroxidation, phase II detoxification (glutathione S-transferase), neurotoxicity (acetylcholinesterase inhibition), and geno- and cytotoxicity (micronuclei and other nuclear deformities). In mussels, the results on biomarker responses were examined in connection with data on the tissue accumulation of polycyclic aromatic hydrocarbons (PAH). In M. trossulus, during the first 4 days of exposure the accumulation of all PAHs in the two highest exposure concentrations was high and was thereafter reduced significantly. Significant increase in ADS responses was observed in M. trossulus at 4 and 7 days of exposure. At day 14, significantly elevated levels of geno- and cytotoxicity were detected in mussels. In G. oceanicus, the ADS responses followed a similar pattern to those recorded in M. trossulus at day 4; however, in G. oceanicus, the elevated ADS response was still maintained at day 11. Conclusively, the results obtained show marked biomarker responses in both study species under conceivable, environmentally realistic oil-in-seawater concentrations during an oil spill, and in mussels, they are related to the observed tissue accumulation of oil-derived compounds.
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- 2020
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16. Improving interpretation of sea-level projections through a machine-learning-based local explanation approach
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Jeremy Rohmer, Remi Thieblemont, Goneri Le Cozannet, Heiko Goelzer, Gael Durand, Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), NORCE - Norwegian Research Centre, Mekjarvik 12, N-4072, Randaberg, Norway., Institut des Géosciences de l’Environnement (IGE), Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP ), and Université Grenoble Alpes (UGA)
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[SDU]Sciences of the Universe [physics] ,[SDU.STU]Sciences of the Universe [physics]/Earth Sciences ,Earth-Surface Processes ,Water Science and Technology - Abstract
Sea-level projections are usually calculated from numerical simulations using complex long-term numerical models (or a chain of models) as part of multi-model ensemble studies. Because of their importance in supporting the decision-making process for coastal risk assessment and adaptation, improving the interpretability of these projections is of great interest. Specifically, it is assumed that clear and transparent explanations of projected sea-level changes can increase the trust of the end-users, and ultimately favor their engagement in coastal adaptation. To this end, we adopt the local attribution approach developed in the machine learning community, and we combine the game-theoretic approach known as ‘SHAP’ (SHapley Additive exPlanation, Lundberg & Lee, 2017) with tree-based regression models. We applied our methodology to sea-level projections for the Greenland ice sheet computed by the ISMIP6 initiative (Goelzer et al., 2020) with a particular attention paid to the validation of the procedure. This allows us to quantify the influence of particular modelling decisions and to express the influence directly in terms of sea level change contribution. For Greenland, we show that the largest predicted sea level change, 19cm in 2100, is primarily attributable to >4.5cm (i.e. nearly 25%) to the choice of the model parameter that controls the retreat of marine-terminating outlet glaciers, i.e. to the modelling of the retreat rate of tidewater glaciers; other modelling decisions (choice of global climate model, formulation of the ice sheet model ISM, model grid size, etc.) have only a low-to-moderate influence for this case (with contribution of 1-2cm). This type of diagnosis can be performed on any member of the ensemble, and we show how the aggregation of all local attribution analyses can help guide future model development as well as scientific interpretation, particularly with regard to model spatial resolution or the selection of a specific model formulation.This study was supported by the PROTECT project, which received funding from the European Union's Horizon 2020 research and innovation program under grant agreement No 869304.ReferencesGoelzer, H., et al. (2020). The future sea-level contribution of the Greenland ice sheet: a multi-model ensemble study of ISMIP6. The Cryosphere 14, 3071-3096.Lundberg, S.M., & Lee, S.I. (2017). A unified approach to interpreting model predictions. In Proceedings of the 31st international conference on neural information processing systems (pp. 4768-4777).
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- 2022
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17. Global exposure of population and land‐use to meteorological droughts under different Warming Levels and Shared Socioeconomic Pathways: A Coordinated Regional Climate Downscaling Experiment‐based study
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Spinoni, Jonathan, Barbosa, Paulo, Bucchignani, Edoardo, Cassano, John, Cavazos, Tereza, Cescatti, Alessandro, Christensen, Jens Hesselbjerg, Christensen, Ole Bøssing, Coppola, Erika, Evans, Jason, Forzieri, Giovanni, Geyer, Beate, Giorgi, Filippo, Jacob, Daniela, Katzfey, Jack, Koenigk, Torben, Laprise, René, Lennard, Christopher John, Levent Kurnaz, M., Li, Delei, Llopart, Marta, McCormick, Niall, Naumann, Gustavo, Nikulin, Grigory, Ozturk, Tugba, Panitz, Hans‐Jürgen, Rocha, Rosmeri Porfirio, Solman, Silvina Alicia, Syktus, Jozef, TANGANG, FREDOLIN, Teichmann, Claas, Vautard, Robert, Vogt, Jürgen Valentin, Winger, Katja, Zittis, George, Dosio, Alessandro, Extrèmes : Statistiques, Impacts et Régionalisation (ESTIMR), Laboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] (LSCE), Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS)-Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Commissariat à l'énergie atomique et aux énergies alternatives (CEA)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Işık Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümü, Işık University, Faculty of Arts and Sciences, Department of Physics, Öztürk, Tuğba, Joint Research Centre (JRC), Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC Foundation—REMHI Division), University of Colorado, Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE), Niels Bohr Institute (NBI), Danish Meteorological Institute, Abdus Salam International Centre for Theoretical Physics (ICTP), University of New South Wales, Institute of Coastal Research, Climate and Atmosphere Research Center (CARE-C), Helmholtz-Zentrum Geesthacht, Commonwealth Scientific and Industrial Research Organisation (CSIRO) Marine and Atmospheric Research, Rossby Centre, Université du Quebec à Montréal (UQAM), Climate System Analysis Group (CSAG), Bogazici University, Chinese Academy of Sciences (CAS), Universidade Estadual Paulista (UNESP), Isik University, Karlsruhe Institute of Technology (KIT), Universidade de São Paulo (USP), Universidad de Buenos Aires, Centro de Investigaciones del Mar y la Atmósfera (CIMA/CONICET-UBA), The University of Queensland, The National University of Malaysia (UKM), Laboratoire des Sciences du Climat et de l'Environnement (LSCE), Norwegian Research Centre AS, and Centro Italiano Ricerche Aerospaziali (CIRA)
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climate projections ,[SDE.MCG]Environmental Sciences/Global Changes ,Meteorologi och atmosfärforskning ,Population ,Vulnerability ,population ,Future drought ,drought ,2 degrees-C ,socioeconomic scenarios ,Tree mortality ,global warming levels ,Summer monsoon ,Climate projections ,land-use ,Land-use ,Global warming levels ,Projections ,Socioeconomic scenarios ,Drought ,Euro-cordex ,Disaster risk ,CORDEX ,Meteorology and Atmospheric Sciences ,[SDU.STU.CL]Sciences of the Universe [physics]/Earth Sciences/Climatology ,Soil-moisture ,[SDV.EE.BIO]Life Sciences [q-bio]/Ecology, environment/Bioclimatology ,Crop production - Abstract
Made available in DSpace on 2022-04-29T08:31:27Z (GMT). No. of bitstreams: 0 Previous issue date: 2021-01-01 Global warming is likely to cause a progressive drought increase in some regions, but how population and natural resources will be affected is still underexplored. This study focuses on global population and land-use (forests, croplands, pastures) exposure to meteorological drought hazard in the 21st century, expressed as frequency and severity of drought events. As input, we use a large ensemble of climate simulations from the Coordinated Regional Climate Downscaling Experiment, population projections from the NASA-SEDAC dataset, and land-use projections from the Land-Use Harmonization 2 project for 1981–2100. The exposure to drought hazard is presented for five SSPs (SSP1-SSP5) at four Global Warming Levels (GWLs, from 1.5 to 4°C). Results show that considering only Standardized Precipitation Index (SPI; based on precipitation), the combination SSP3-GWL4 projects the largest fraction of the global population (14%) to experience an increase in drought frequency and severity (vs. 1981–2010), with this value increasing to 60% if temperature is considered (indirectly included in the Standardized Precipitation-Evapotranspiration Index, SPEI). With SPEI, considering the highest GWL for each SSP, 8 (for SSP2, SSP4, and SSP5) and 11 (SSP3) billion people, that is, more than 90%, will be affected by at least one unprecedented drought. For SSP5 (fossil-fuelled development) at GWL 4°C, approximately 2·106 km2 of forests and croplands (respectively, 6 and 11%) and 1.5·106 km2 of pastures (19%) will be exposed to increased drought frequency and severity according to SPI, but for SPEI, this extent will rise to 17·106 km2 of forests (49%), 6·106 km2 of pastures (78%), and 12·106 km2 of croplands (67%), with mid-latitudes being the most affected areas. The projected likely increase of drought frequency and severity significantly increases population and land-use exposure to drought, even at low GWLs, thus extensive mitigation and adaptation efforts are needed to avoid the most severe impacts of climate change. European Commission Joint Research Centre (JRC) Centro Euro-Mediterraneo sui Cambiamenti Climatici (CMCC Foundation—REMHI Division) Cooperative Institute for Research in Environmental Sciences (CIRES) and Department of Atmospheric and Oceanic Sciences Snow and Ice Data Center University of Colorado Centro de Investigación Científica y de Educación Superior de Ensenada (CICESE) University of Copenhagen Niels Bohr Institute (NBI) Danish Meteorological Institute Abdus Salam International Centre for Theoretical Physics (ICTP) Faculty of Science University of New South Wales Helmholtz-Zentrum Geesthacht (HZG) Institute of Coastal Research The Cyprus Institute (CyI) Climate and Atmosphere Research Center (CARE-C) Climate Service Center Germany (GERICS) Helmholtz-Zentrum Geesthacht Commonwealth Scientific and Industrial Research Organisation (CSIRO) Marine and Atmospheric Research Swedish Meteorological and Hydrological Institute (SMHI) Rossby Centre Département des Sciences de la Terre et de l'Atmosphère Université du Quebec à Montréal (UQAM) University of Cape Town Climate System Analysis Group (CSAG) Department of Physics Faculty of Arts and Sciences Bogazici University Center for Climate Change and Policy Studies Bogazici University Key Laboratory of Ocean Circulation and Waves Institute of Oceanology Chinese Academy of Sciences (CAS) São Paulo State University and Bauru Meteorological Centre (IPMet/UNESP) Department of Physics Faculty of Arts and Sciences Isik University Institute of Meteorology and Climate Research Karlsruhe Institute of Technology (KIT) Departamento de Ciências Atmosféricas Universidade de São Paulo Facultad de Ciencias Exactas y Naturales Departamento de Ciencias de la Atmósfera y los Océanos (DCAO-FCEN-UBA) Universidad de Buenos Aires Universidad de Buenos Aires Centro de Investigaciones del Mar y la Atmósfera (CIMA/CONICET-UBA) School of Biological Sciences The University of Queensland Department of Earth Sciences and Environment The National University of Malaysia (UKM) National Centre for Scientific Research (CNRS) Institut Pierre-Simon Laplace (IPSL) Laboratoire des Sciences du Climat et de l'Environnement (LSCE) NORCE Norwegian Research Centre AS Centro Italiano Ricerche Aerospaziali (CIRA) São Paulo State University and Bauru Meteorological Centre (IPMet/UNESP)
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- 2021
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18. Cyclic Arginine–Glycine–Aspartate‐Decorated Lipid Nanoparticle Targeting toward Inflammatory Lesions Involves Hitchhiking with Phagocytes
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Jordi Ochando, Olav Haraldseth, Catharina de Lange Davies, Willem J. M. Mulder, Geir Bjørkøy, Twan Lammers, Alexandros Marios Sofias, Maria Hegvik, Sjoerd Hak, Linda Sønstevold, Tromsø Research Foundation, Trond Mohn Foundation, Norwegian Research Centre, and Central Norway Regional Health Authority
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Arginine ,Neutrophils ,Science ,General Chemical Engineering ,medicine.medical_treatment ,Glycine ,General Physics and Astronomy ,Medicine (miscellaneous) ,Nanoparticle ,Inflammation ,Inflammation ,Biochemistry, Genetics and Molecular Biology (miscellaneous) ,Intravital microscopy ,neutrophils ,intravital microscopy ,medicine ,General Materials Science ,Chemistry ,General Engineering ,Phagocyte hitchhiking ,Immunotherapy ,Nanomedicines ,nanomedicines ,arginine–glycine–aspartate ,Aspartate ,Biochemistry ,intravital mi-croscopy ,inflammation ,immunotherapy ,medicine.symptom ,ddc:624 - Abstract
Advanced science (2021). doi:10.1002/advs.202100370, Published by Wiley-VCH, Weinheim
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- 2021
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19. Harmonisation of relevant international standards and regulations to achieve hydrogen risk reduction measurement at NORCE laboratories in the risk management perspective
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Wahyudi, Tri, Abrahamsen, Eirik Bjorheim, Lohne, Hans Petter, Abrahamsen, Eirik Bjorheim (University of Stavanger), and Lohne, Hans Petter (Norwegian Research Centre)
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Hydrogen is the most talked about topic today. Besides being able to reduce carbon dioxide levels with combustion products that do not produce carbon dioxide or known as green energy, its potential as a substitute for existing energy is needed. There are two important things that make hydrogen needed as a substitute for existing energy. The first is the limited availability of hydrocarbons based on(IEO, 2019) “the global supply of crude oil, other liquid hydrocarbons, and biofuels is expected to be adequate to meet the world's demand for liquid fuels through 2050”. This must be kept in mind if future energy shortages are to be avoided. The second thing is concern for climate change. The use of hydrogen as a substitute for existing energy will reduce the level of carbon dioxide production. As we know in general that one of the factors for global warming is the increase in carbon dioxide in the atmosphere. The higher the level of risk that is unknown and could arise over time as the use of hydrogen increases. Hydrogen-based systems, like any other technical system, will unavoidably include hazards connected with potentially dangerous conditions that endanger public safety, health, or the environment. Such as in this case, NORCE laboratories using hydrogen in their fermentation system. In order to ensure that connected products and systems are safe and perform as designed, safety issues must be addressed methodically for each equipment that involved hydrogen. Risk analysis is the right step to make a detailed understanding of risk in an event. However, in the case of hydrogen use, risk analysis is not sufficient. Third party services are also available to help create hydrogen hazard prevention applications for each piece of equipment. However, this seems excessive and tends to be disproportionate to the costs incurred for a research lab that uses hydrogen below the LEL (low explosion limit). The main objective of this thesis is to solve the problem of using hydrogen safely in the NORCE laboratory. Starting from a detailed understanding of the risk perspective in order to describe the risk of hydrogen accidental phenomena and consequences. This is important because it will relate to the selection of the right type of regulation and standard for designing risk reducing measures methods. In this case, the author uses the International Electrotechnical Commission (IEC 60079) series of explosive atmosphere standards and the International Standard Organization (ISO 15916) regarding basic considerations for the safety of hydrogen systems because the potential for explosions in hydrogen release often occurs. In addition, the principle of risk reducing measures and emergency response plan is based on the regulations of Petroleum Safety Authority Norway (PSAN) and NORSOK Z-013. As a result, this thesis provides several recommendations regarding risk reducing measures methods at NORCE Laboratories.
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- 2021
20. Seasonal Carbon Dynamics in the Near‐Global Ocean
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Lydia Keppler, Nicolas Gruber, Irene Stemmler, Siv K. Lauvset, Peter Landschützer, Landschützer, P., 2 International Max Planck Research School on Earth System Modelling Hamburg Germany, Gruber, N., 3 Environmental Physics, Institute of Biogeochemistry and Pollutant Dynamics ETH Zurich Zurich Switzerland, Lauvset, S. K., 4 NORCE Norwegian Research Centre, Bjerknes Centre for Climate Research Bergen Norway, Stemmler, I., and 1 Max‐Planck‐Institute for Meteorology Hamburg Germany
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0106 biological sciences ,FFN ,Atmospheric Science ,010504 meteorology & atmospheric sciences ,chemistry.chemical_element ,Atmospheric sciences ,01 natural sciences ,DIC ,SOM‐FFN ,seasonal variability ,Environmental Chemistry ,14. Life underwater ,monthly climatology ,0105 earth and related environmental sciences ,General Environmental Science ,Global and Planetary Change ,010604 marine biology & hydrobiology ,Dynamics (mechanics) ,neural networks ,NCP ,chemistry ,13. Climate action ,SOM‐ ,Environmental science ,Carbon - Abstract
The seasonal cycle represents one of the largest signals of dissolved inorganic carbon (DIC) in the ocean, yet these seasonal variations are not well established at a global scale. Here, we present the Mapped Observation‐Based Oceanic DIC (MOBO‐DIC) product, a monthly DIC climatology developed based on the DIC measurements from GLODAPv2.2019 and a two‐step neural network method to interpolate and map the measurements. MOBO‐DIC extends from the surface down to 2,000 m and from 65°N to 65°S. We find the largest seasonal amplitudes of surface DIC in the northern high‐latitude Pacific (∼30 to >50 μmol kg−1). Surface DIC maxima occur in hemispheric spring and minima in fall, driven by the input of DIC into the upper ocean by mixing during winter, and net community production (NCP) driven drawdown of DIC over summer. The seasonal pattern seen at the surface extends to a nodal depth of, Key Points We present a near‐global monthly DIC climatology (MOBO‐DIC) based on ship observations and a two‐step neural network Seasonal surface DIC amplitudes range from 0 to more than 50 μmol kg−1 MOBO‐DIC yields a spring‐to‐fall NCP in the euphotic zone of the mid‐latitudes of 3.9 ± 2.7 Pg C yr−1, European Community's Horizon 2020 Project, International Max Planck Research School on Earth System Modelling (IMPRS‐ESM)
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- 2020
21. Closed-loop tool face control with the bit off-bottom
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Ulf Jakob F. Aarsnes, Jean Auriol, Florent Di Meglio, Roman Shor, Laboratoire des signaux et systèmes (L2S), Université Paris-Sud - Paris 11 (UP11)-CentraleSupélec-Centre National de la Recherche Scientifique (CNRS), Department of Chemical and Petroleum Engineering [Calgary], University of Calgary, NORCE - Norwegian Research Centre, Mekjarvik 12, N-4072, Randaberg, Norway., Centre Automatique et Systèmes (CAS), MINES ParisTech - École nationale supérieure des mines de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)
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0209 industrial biotechnology ,Computer science ,Flatness (systems theory) ,Directional drilling ,[SPI.MECA.VIBR]Engineering Sciences [physics]/Mechanics [physics.med-ph]/Vibrations [physics.class-ph] ,[PHYS.PHYS.PHYS-GEO-PH]Physics [physics]/Physics [physics]/Geophysics [physics.geo-ph] ,02 engineering and technology ,Industrial and Manufacturing Engineering ,Drill string ,Computer Science Applications ,Setpoint ,020901 industrial engineering & automation ,020401 chemical engineering ,Control and Systems Engineering ,Control theory ,Modeling and Simulation ,Orientation (geometry) ,Face (geometry) ,[INFO.INFO-AU]Computer Science [cs]/Automatic Control Engineering ,Trajectory ,[MATH.MATH-AP]Mathematics [math]/Analysis of PDEs [math.AP] ,0204 chemical engineering ,Rotation (mathematics) - Abstract
International audience; In this paper, we develop three methods to achieve reliable closed-loop, tool face control for directional drilling operations. This is a necessary step to achieve closed-loop, automated directional guidance. Our algorithms combine existing industry top-drive controllers with new control approaches. The torsional model we use for the drill string has been field validated and takes into account the Coulomb friction between the drill string and the borehole. These distributed friction terms are either assumed known (or measured) or can be estimated using a state-observer. In this work, we improve such a state-observer to obtain an estimation of the tool face orientation in real-time. We then propose different approaches to control the tool face. The first method is based on a feed-forward control law. It uses the flatness of the model and the estimation of the orientation to generate an admissible trajectory which is then tracked. In the second procedure, we require a stable rotation off-bottom before smoothly changing the reference to zero to stop bit rotation. This change of reference induces a change of orientation that can be estimated and finally compensated by repeating the procedure. Finally, the last method uses a series of trapezoidal setpoint inputs-bumps-to calculate the change in downhole tool face per change in surface orientation before arriving at the correct tool face after three iterations. These three algorithms are illustrated in simulations of field scenarios and their effectiveness and limitations, depending on the reliability and availability of downhole orientation data, are discussed.
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- 2020
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22. Future Global Meteorological Drought Hot Spots: A Study Based on CORDEX Data
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Hans-Juergen Panitz, Panos Hadjinicolaou, Niall McCormick, Jozef Syktus, Tereza Cavazos, M. Levent Kurnaz, Silvina Alicia Solman, Erika Coppola, Daniela Jacob, Marta Llopart, Paulo Barbosa, Edoardo Bucchignani, Robert Vautard, Filippo Giorgi, Jürgen Vogt, Burkhardt Rockel, Fredolin Tangang, Jack Katzfey, René Laprise, Tugba Ozturk, Alessandro Dosio, Jonathan Spinoni, Rosmeri Porfírio da Rocha, Gustavo Naumann, Beate Geyer, George Zittis, Jens Hesselbjerg Christensen, Grigory Nikulin, Torben Koenigk, Katja Winger, Christopher Lennard, Claas Teichmann, Jason P. Evans, John J. Cassano, Delei Li, Ole Bøssing Christensen, Joint Research Centre, Centro Euro-Mediterraneo sui Cambiamenti Climatici, University of Colorado Boulder, Centro de Investigacion Cientifica y de Educacion Superior de Ensenada, University of Copenhagen, Danish Meteorological Institute, Abdus Salam International Centre for Theoretical Physics, University of New South Wales, Institute of Coastal Research, Cyprus Institute, Climate Service Center Germany, Commonwealth Scientific and Industrial Research Organisation Marine and Atmospheric Research, Swedish Meteorological and Hydrological Institute, University du Quebec à Montreal, University of Cape Town, Bogazici University, Institute of Oceanology, Universidade Estadual Paulista (Unesp), Isik University, Karlsruhe Institute of Technology, Universidade de São Paulo (USP), Universidad de Buenos Aires, University of Queensland, National University of Malaysia (UKM), Laboratoire des Sciences du Climat et de l’Environment, Norwegian Research Centre AS (NORCE), Işık Üniversitesi, Fen Edebiyat Fakültesi, Fizik Bölümü, Işık University, Faculty of Arts and Sciences, Department of Physics, and Öztürk, Tuğba
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Atmospheric Science ,CLIMATE-CHANGE PROJECTIONS ,DROUGHTS ,010504 meteorology & atmospheric sciences ,0208 environmental biotechnology ,Drainage basin ,Precipitation ,02 engineering and technology ,Climate prediction ,01 natural sciences ,Klimatforskning ,purl.org/becyt/ford/1 [https] ,Meteorological drought ,purl.org/becyt/ford/1.5 [https] ,TEMPERATURA ,Evapotranspiration ,ddc:550 ,Climate change ,Mediterranean region ,TEMPERATURE ,Northern Hemispheres ,River basins ,geography.geographical_feature_category ,EARTH SYSTEM MODEL ,FOOD SECURITY ,General Circulation Model ,Climatology ,Regional circulation models ,GLOBAL ,Climate Research ,REGIONAL CLIMATE MODELS ,HYDROLOGICAL DROUGHTS ,Drought characteristics ,Climate models ,Southern South America ,CMIP5 ,0105 earth and related environmental sciences ,geography ,Drought ,Global temperature ,POTENTIAL EVAPOTRANSPIRATION ,SIMULATIONS ,020801 environmental engineering ,PRECIPITATION CLIMATOLOGY ,Earth sciences ,Global circulation model ,Standardized precipitation index ,Environmental science ,Climate model ,MULTIMODEL ,FUTURE SCENARIOS - Abstract
Two questions motivated this study: 1) Will meteorological droughts become more frequent and severe during the twenty-first century? 2) Given the projected global temperature rise, to what extent does the inclusion of temperature (in addition to precipitation) in drought indicators play a role in future meteorological droughts? To answer, we analyzed the changes in drought frequency, severity, and historically undocumented extreme droughts over 1981–2100, using the standardized precipitation index (SPI; including precipitation only) and standardized precipitation-evapotranspiration index (SPEI; indirectly including temperature), and under two representative concentration pathways (RCP4.5 and RCP8.5). As input data, we employed 103 high-resolution (0.448) simulations from the Coordinated Regional Climate Downscaling Experiment (CORDEX), based on a combination of 16 global circulation models (GCMs) and 20 regional circulation models (RCMs). This is the first study on global drought projections including RCMs based on such a large ensemble of RCMs. Based on precipitation only,;15% of the global land is likely to experience more frequent and severe droughts during 2071–2100 versus 1981–2010 for both scenarios. This increase is larger (;47% under RCP4.5,;49% under RCP8.5) when precipitation and temperature are used. Both SPI and SPEI project more frequent and severe droughts, especially under RCP8.5, over southern South America, the Mediterranean region, southern Africa, southeastern China, Japan, and southern Australia. A decrease in drought is projected for high latitudes in Northern Hemisphere and Southeast Asia. If temperature is included, drought characteristics are projected to increase over North America, Amazonia, central Europe and Asia, the Horn of Africa, India, and central Australia; if only precipitation is considered, they are found to decrease over those areas. Fil: Spinoni, Jonathan. Joint Research Centre; Italia Fil: Barbosa, Paulo. Joint Research Centre; Italia Fil: Bucchignani, Edoardo. Centro Euro Mediterraneo Sui Cambiamenti Climatici.; Italia Fil: Cassano, John. State University of Colorado at Boulder; Estados Unidos Fil: Cavazos, Tereza. Centro de Investigacion Cientifica y de Educacion Super; México Fil: Christensen, Jens H.. Danish Meteorological Institute; Dinamarca Fil: Christensen, Ole B.. Danish Meteorological Institute; Dinamarca Fil: Coppola, Erika. The Abdus Salam. International Centre for Theoretical Physics; Italia Fil: Evans, Jason. University of New South Wales. Faculty of Science; Australia Fil: Geyer, Beate. Institute of Coastal Research; Alemania Fil: Giorgi, Filippo. The Abdus Salam. International Centre for Theoretical Physics; Italia Fil: Hadjinicolaou, Panos. Environment And Water Research Center; Chipre Fil: Jacob, Daniela. Climate Service Center; Alemania Fil: Katzfey, Jack. Commonwealth Scientific And Industrial Research Organis; Australia Fil: Koenigk, Torben. Swedish Meteorological And Hydrological; Suecia Fil: Laprise, René. Université du Québec a Montreal; Canadá Fil: Lennard, Christopher J.. University of Cape Town; Sudáfrica Fil: Kurnaz, M. Levent. Bogazici University; Turquía Fil: Delei, L.I.. Chinese Academy of Sciences; República de China Fil: Llopart, Marta. Universidade Estadual Paulista Julio de Mesquita Filho; Brasil Fil: McCormick, Niall. European Commission Joint Research Centre; España Fil: Naumann, Gustavo. European Commission Joint Research Centre; España Fil: Nikulin, Grigory. No especifíca; Fil: Ozturk, Tugba. No especifíca; Fil: Panitz, Hans Juergen. No especifíca; Fil: da Rocha, Rosmeri Porfirio. No especifíca; Fil: Rockel, Burkhardt. No especifíca; Fil: Solman, Silvina Alicia. Consejo Nacional de Investigaciones Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Centro de Investigaciones del Mar y la Atmósfera. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Centro de Investigaciones del Mar y la Atmósfera; Argentina Fil: Syktus, Jozef. The University of Queensland; Australia. University of Queensland; Australia Fil: Tangang, Fredolin. No especifíca; Fil: Vautard, Robert. No especifíca; Fil: Vautard, Robert. Centre National de la Recherche Scientifique; Francia Fil: Vogt, Jürgen V.. European Commission Joint Research Centre; España Fil: Winger, Katja. Université du Québec a Montreal; Canadá Fil: Zittis, George. No especifíca; Fil: Dosio, Alessandro. No especifíca
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- 2020
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23. A phenomenological transient model of bit foundering
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Adrian Ambrus, Ulf Jakob F. Aarsnes, Florent Di Meglio, Laurent Gerbaud, Norwegian Research Centre, Oslo, Norway, Centre Automatique et Systèmes (CAS), MINES ParisTech - École nationale supérieure des mines de Paris, and Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)
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ComputingMilieux_PERSONALCOMPUTING ,ESC ,Drilling ,02 engineering and technology ,Mechanics ,Bit–rock interaction ,010502 geochemistry & geophysics ,Geotechnical Engineering and Engineering Geology ,Bit foundering ,01 natural sciences ,GeneralLiterature_MISCELLANEOUS ,[SPI.AUTO]Engineering Sciences [physics]/Automatic ,Rate of penetration ,Bit (horse) ,[PHYS.MECA.STRU]Physics [physics]/Mechanics [physics]/Structural mechanics [physics.class-ph] ,Fuel Technology ,020401 chemical engineering ,Weight on bit ,Transient (oscillation) ,0204 chemical engineering ,Drilling optimization ,Geology ,0105 earth and related environmental sciences - Abstract
International audience; In this paper we developed a phenomenological transient model of bit foundering which accounts for cuttings transport around the bit through time-dependent erosion and deposition terms. By bit foundering we mean the observed effect where Rate of Penetration no longer increases (and potentially decreases) with Weight on Bit. The model is compared against several experimental data sets and a data set from a full-scale drilling test, and is shown to qualitatively replicate the foundering behavior observed in the data. The simple formulation of the bit foundering model makes it attractive for drilling optimization and control applications.
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- 2021
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24. Priorities to inform research on tire particles and their chemical leachates: A collective perspective.
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Obanya HE, Khan FR, Carrasco-Navarro V, Rødland ES, Walker-Franklin I, Thomas J, Cooper A, Molden N, Amaeze NH, Patil RS, Kukkola A, Michie L, Green-Ojo B, Rauert C, Couceiro F, Hutchison GR, Tang J, Ugor J, Lee S, Hofmann T, and Ford AT
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- Environmental Monitoring, Vehicle Emissions prevention & control, Vehicle Emissions analysis, Research, Environmental Policy legislation & jurisprudence, Water Pollutants, Chemical analysis, Water Pollutants, Chemical chemistry, Water Pollutants, Chemical toxicity
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Concerns over the ecological impacts of urban road runoff have increased, partly due to recent research into the harmful impacts of tire particles and their chemical leachates. This study aimed to help the community of researchers, regulators and policy advisers in scoping out the priority areas for further study. To improve our understanding of these issues an interdisciplinary, international network consisting of experts (United Kingdom, Norway, United States, Australia, South Korea, Finland, Austria, China and Canada) was formed. We synthesised the current state of the knowledge and highlighted priority research areas for tire particles (in their different forms) and their leachates. Ten priority research questions with high importance were identified under four themes (environmental presence and detection; chemicals of concern; biotic impacts; mitigation and regulation). The priority research questions include the importance of increasing the understanding of the fate and transport of these contaminants; better alignment of toxicity studies; obtaining the holistic understanding of the impacts; and risks they pose across different ecosystem services. These issues have to be addressed globally for a sustainable solution. We highlight how the establishment of the intergovernmental science-policy panel on chemicals, waste, and pollution prevention could further address these issues on a global level through coordinated knowledge transfer of car tire research and regulation. We hope that the outputs from this research paper will reduce scientific uncertainty in assessing and managing environmental risks from TP and their leachates and aid any potential future policy and regulatory development., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2024
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25. General practitioners' attitudes and practices regarding sick leave certification for patients with depression in Norway - a cross-sectional study.
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Hetlevik Ø, Ruths S, Grung I, Nilsen S, and Bringedal B
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- Humans, Cross-Sectional Studies, Norway, Female, Male, Middle Aged, Adult, Surveys and Questionnaires, Practice Patterns, Physicians' statistics & numerical data, Depression, Certification, Sick Leave statistics & numerical data, General Practitioners psychology, General Practitioners statistics & numerical data, Attitude of Health Personnel
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Background: Depression is among the most frequent reasons for sick leave, whereas health authorities recommend a rather strict practice, arguing that work is health-promoting. We aimed to explore GPs' attitudes and practices regarding sick leave certification for depressed patients., Methods: A cross-sectional study using the Norwegian Physician Survey (N = 1617, 70% response rate) in 2021. The GPs in the panel (N = 221) responded to questions about sick leave certification and cooperation with employers and the Norwegian Labour and Welfare Administration (Norwegian acronym: Nav) regarding patients with depression. We used crosstabulation with chi square statistics and logistic regression models to assess differences among GPs., Results: Among 221 GPs, 62% often/very often perceived patients' questions for sick leave certification as the main reason for encountering. A total of 46% often/very often considered patients' expectations inappropriate, with female GPs more frequently than male GPs (36% vs 56%, p = 0.005) and younger GPs more frequently than their older counterparts (p < 0.001). Although 68% considered sick leave as part of treatment, only 16% often/very often initiated sick leave unless patients raised the question. Sixty-seven percent of GPs reported to often/very often avoid sick listing, if possible, more females than males. GPs who often/very often considered questions for sick leave inappropriate less often considered sick leave as part of treatment (odds ratio (OR): 0.25; 95% CI: 0.13-0.49), and less often report a well-functioning cooperation with Nav (OR:0.37; 95% CI:0.14-0.96). GPs who often/very often considered sick leave as part of treatment more often proposed sick leave for their patients (OR:4.70; 96% CI 1.57-14.01) and reported a less strict approach to sick listing (OR: 40; 95% CI: 0.20-0.79). Ninety-five percent of the GPs rarely/never had direct contact with patients' employers, whereas 92% often/very often asked patients about their dialogue with the workplace. Eighty-eight percent of the GPs often/very often experienced cooperation with NAV as good, and 87% often/very often felt trusted by them., Conclusions: Most GPs reported a strict attitude towards sick leave for depression, whereas one-third had a less strict approach. Different perceptions of the appropriateness of sick listing indicate variations in treatment and access to social security benefits., Competing Interests: Declarations. Ethics approval and consent to participate: The survey was approved by the Norwegian Agency for Shared Services in Education and Research. The Regional Committee for Medical and Health Research Ethics found that this study did not require approval from the decision IRB 0000 1870. All the members of the panel provided informed written consent to participate in the study. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests., (© 2024. The Author(s).)
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- 2024
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26. Metabolic profiles in early pregnancy associated with metabolic pregnancy complications in women with obesity.
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Michelsen TM, Skytte HN, Gunnes N, Holven KB, Christensen JJ, and Roland MCP
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- Humans, Female, Pregnancy, Adult, Prospective Studies, Pre-Eclampsia blood, Pre-Eclampsia epidemiology, Longitudinal Studies, Body Mass Index, Hypertension, Pregnancy-Induced epidemiology, Hypertension, Pregnancy-Induced blood, Cohort Studies, Obesity epidemiology, Obesity blood, Metabolome, Pregnancy Complications blood, Pregnancy Complications epidemiology, Diabetes, Gestational blood, Diabetes, Gestational epidemiology
- Abstract
Introduction: Higher maternal body mass index (BMI) is associated with metabolic disturbances and pregnancy complications. We aimed to examine whether metabolic profiles in early pregnancy were associated with metabolic pregnancy complications in women with obesity (BMI ≥ 30 kg/m
2 )., Material and Methods: Nested cohort study from a prospective longitudinal cohort (n = 1031) of women who were healthy prior to pregnancy and gave birth at Oslo University Hospital from 2002-2008. The sample comprised 81 women with obesity. Metabolic pregnancy complications included gestational diabetes mellitus, gestational hypertension and preeclampsia. In plasma samples from gestational weeks 14-16, 91 metabolites were analyzed by nuclear magnetic resonance spectroscopy. We performed a principal component analysis to reduce the metabolic dimensions. Logistic regression models were fitted to estimate crude and adjusted odds ratios (ORs) of metabolic pregnancy complications., Results: Twenty-four out of 81 women developed metabolic pregnancy complications (gestational hypertension, preeclampsia, and/or gestational diabetes). Two of five principal components (80 % explained variance) were significantly associated with metabolic pregnancy complications. The ratio of monounsaturated to total fatty acids increased the risk of metabolic pregnancy complications (OR 2.09, 95 % confidence interval [CI] 1.25-3.75), while the ratio of polyunsaturated to monounsaturated fatty acids decreased the risk (OR 0.54, 95 % CI 0.30-0.89). The ratio of omega-3 to total fatty acids (OR 0.59, 95 % CI 0.34-0.98) and the ratio of docosahexaenoic acid to total fatty acids (OR 0.57, 95 % CI 0.31-0.97) also decreased the risk of metabolic pregnancy complications., Conclusion: Metabolic profile in early pregnancy was associated with risk of metabolic pregnancy complications in women with obesity. We observed the strongest associations between fatty acid composition and metabolic pregnancy complications., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Marie Cecilie P Roland and Trond M. Michelsen report financial support was provided by South-Eastern Norway Regional Health Authority. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)- Published
- 2024
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27. Prepregnancy body mass index and visceral fat exhibit divergent associations with metabolic factors in pregnant women with obesity: A Norwegian cohort study.
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Bonnichsen ML, Gunnes N, Nyfløt LT, Haugen G, and Roland MC
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- Humans, Female, Pregnancy, Adult, Norway, Prospective Studies, Longitudinal Studies, Adipokines blood, Cohort Studies, Blood Glucose metabolism, Intra-Abdominal Fat metabolism, Body Mass Index, Pregnancy Complications metabolism, Obesity metabolism
- Abstract
Introduction: Pregnancy involves changes in maternal metabolism that differ between normal-weight women and women with overweight or obesity, including changes in glucose, insulin, lipids, and adipokines. These changes contribute to altered risk profiles for adverse outcomes for both mother and child during pregnancy, childbirth, and postpartum. We explored associations between visceral fat and prepregnancy body mass index (pBMI), respectively, with glucose and lipid metabolism, as well as with adipokines and C-reactive protein (CRP), measured fasting in early and late pregnancy. We hypothesized that among women with pBMI ≥35 kg/m
2 , visceral fat measured around gestational week 18 (visceral fat18) would show associations with greater number of metabolic variables during pregnancy, than pBMI., Material and Methods: This prospective longitudinal cohort study was conducted at the Department of Gynecology and Obstetrics at Drammen Hospital from 2016 to 2019. We included 166 nulliparous (47.6%) and parous pregnant women with pBMI ≥35 kg/m2 and singleton pregnancy. Women with type 1 diabetes were excluded. We evaluated associations of pBMI and visceral fat estimated with bioimpedance weight around gestational week 18 (visceral fat18) with fasting metabolic measures around gestational weeks 18 and 36 using median regression models. We used the paired t-test or the Wilcoxon signed-rank test, as appropriate, to analyze changes in metabolic measures from early to late pregnancy, and median regression to estimate crude and adjusted differences in medians of 21 maternal metabolic measures associated with one-unit changes in pBMI and visceral fat18, respectively., Results: pBMI and visceral fat18 were highly correlated and showed associations with similar metabolic measures in pregnancy in crude analysis. After mutual adjustment for each other in addition to age and parity, pBMI was associated with glucose metabolism, in particular fasting insulin, whereas visceral fat18 was primarily associated with leptin., Conclusions: Among pregnant women with BMI ≥35 kg/m2 , easily obtainable pBMI and the more resource-demanding estimate of visceral fat18 exhibit divergent associations with metabolic measures; pBMI was positively associated with insulin, glucose, and HbA1c, while visceral fat18 was positively associated with leptin. We did not find visceral fat18 to be associated with greater number of metabolic factors than pBMI., (© 2024 The Author(s). Acta Obstetricia et Gynecologica Scandinavica published by John Wiley & Sons Ltd on behalf of Nordic Federation of Societies of Obstetrics and Gynecology (NFOG).)- Published
- 2024
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28. How well can the fetal heart rate baseline be assessed by intrapartum intermittent auscultation? An interrater reliability and agreement study.
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Engelhart CH, Vanbelle S, Øian P, Pay ASD, Kaasen A, and Blix E
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- Humans, Female, Pregnancy, Reproducibility of Results, Norway, Adult, Fetal Monitoring methods, Labor, Obstetric, Heart Auscultation methods, Auscultation methods, Heart Rate, Fetal physiology, Observer Variation, Midwifery
- Abstract
Background: We aimed to examine the inter-reliability and agreement among midwives when assessing the fetal heart rate (FHR) using the handheld Doppler. The primary aim was to measure the reliability and agreement of FHR baseline (baseline) as beats per minute (bpm). The secondary aims were to measure fluctuations from the baseline, defined as increases and decreases, and classifications (normal or abnormal) of FHR soundtracks. This is the first interrater reliability and agreement study on intermittent auscultation (IA) to our knowledge., Methods: The participant population consisted of 154 women in labor, from a mixed-risk population and admitted to hospital for intrapartum care. The rater population were 16 midwives from various maternity care settings in Norway. A total of 154 soundtracks were recorded with a handheld Doppler device, and the 16 raters assessed 1-min soundtracks once, through an online survey (Nettskjema). They assessed the baseline, FHR increase or decrease, and the FHR classification. The primary outcome, baseline, was measured with intraclass correlation coefficient (ICC). The secondary outcomes were measured with kappa and proportion of agreement., Results: The interrater reliability for the baseline (bpm) was ICC(A,1) 0.74 (95% CI 0.69-0.78). On average, an absolute difference of 7.9 bpm (95% CI 7.3-8.5 bpm) was observed between pairs of raters., Conclusion: Our results demonstrate an acceptable level of reliability and agreement in assessing the baseline using a handheld Doppler., (© 2024 The Author(s). Birth published by Wiley Periodicals LLC.)
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- 2024
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29. To neutrally offer or strongly recommend? General practitioners' perspectives on screening for gestational diabetes according to the national guideline in Norway.
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Forthun I, Møen KA, and Hjörleifsson S
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- Humans, Female, Pregnancy, Norway, Adult, Practice Patterns, Physicians', General Practice, Male, Middle Aged, Qualitative Research, Diabetes, Gestational diagnosis, General Practitioners, Focus Groups, Mass Screening, Practice Guidelines as Topic, Attitude of Health Personnel
- Abstract
Objective: To explore general practitioners' experiences and reflections on how the current Norwegian guideline for screening for gestational diabetes affects their clinical practice., Design: A qualitive study in which data were collected through semi-structured focus group interviews and analyzed thematically., Setting and Subjects: Five focus groups conducted in 2020 among GPs in Norway; three interviews took place face-to-face and two were held digitally. The total number of participants was 31., Results: GPs acknowledged the potential benefits of more extensive screening, but had concerns about the medicalization of pregnancy, stating that some women experienced considerable anxiety. The GPs expressed doubts about the guideline's evidence base but differed in how they interpreted what the guideline was asking them to do. Some offered eligible women the opportunity to be screened, while other set up a screening appointment without consulting the women first. For some, fear of incrimination made them recommend screening without being convinced that it was the right thing for the patient., Conclusions: It is unclear whether the guideline for gestational diabetes requires GPs to recommend screening to pregnant women or if they should provide neutral information about the availability of screening. This ambiguity should be addressed, and the guideline evaluated against the core principles of general practice.
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- 2024
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30. Obstetric anal sphincter injuries during instrumental vaginal delivery: An observational study based on 18-years of real-world data.
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Fodstad K, Laine K, and Räisänen S
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- Humans, Female, Pregnancy, Norway epidemiology, Adult, Prevalence, Obstetrical Forceps adverse effects, Extraction, Obstetrical adverse effects, Extraction, Obstetrical statistics & numerical data, Extraction, Obstetrical instrumentation, Obstetric Labor Complications epidemiology, Obstetric Labor Complications etiology, Registries, Lacerations epidemiology, Lacerations etiology, Logistic Models, Parity, Anal Canal injuries, Episiotomy statistics & numerical data, Episiotomy adverse effects, Vacuum Extraction, Obstetrical adverse effects, Vacuum Extraction, Obstetrical statistics & numerical data
- Abstract
Objective: To determine the prevalence and secular trends of obstetric anal sphincter injuries (OASIS) in vacuum and forceps deliveries in Norway, both with and without episiotomy., Design: Population-based real-world data collected during 2001-2018., Setting: Medical Birth Registry Norway., Population or Sample: Nulliparous women with singleton foetuses in a cephalic presentation delivered by either vacuum or forceps (n = 70 783)., Methods: Logistic regression analyses were applied to the OASIS prevalence in six 3-year time periods. Both crude odds ratios and adjusted odds ratios (aORs) with 95% confidence intervals (CIs) were determined., Main Outcome Measures: OASIS prevalence., Results: The OASIS prevalence in vacuum and forceps deliveries decreased from 14.8% during 2001-2003 to 5.2% during 2016-2018. The overall reduction between the first and last 3-year time period was 61% (aOR = 0.39, 95% CIs = 0.35-0.43). The only exception to this decreasing trend in OASIS was found in forceps deliveries performed without an episiotomy. The OASIS prevalence was approximately twofold higher in forceps compared to vacuum deliveries (aOR = 1.92, 95% CIs = 1.79-2.05). Performing either a mediolateral or lateral episiotomy was associated with a 45% decrease in the prevalence of OASIS relative to no episiotomy (aOR = 0.55, 95% CIs = 0.52-0.58)., Conclusions: Opting for vacuum rather than forceps delivery in conjunction with a mediolateral or lateral episiotomy could significantly lower the OASIS prevalence in nulliparous women., (© 2024 The Author(s). BJOG: An International Journal of Obstetrics and Gynaecology published by John Wiley & Sons Ltd.)
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- 2024
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31. Developmental trajectories of conduct problems and time-varying peer problems: the Bergen child study.
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Girard LC, Bøe T, Nilsen SA, Askeland KG, and Hysing M
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- Humans, Male, Female, Norway epidemiology, Child, Adolescent, Risk Factors, Young Adult, Problem Behavior psychology, Longitudinal Studies, Peer Group, Conduct Disorder epidemiology, Conduct Disorder psychology
- Abstract
Background: While it is increasingly acknowledged that conduct problems and peer problems often co-occur in development, less is known about the ways in which peer problems may alter the developmental course of conduct problems for distinct subgroups., Methods: Using data from a large population-based study in Norway (the Bergen Child Study/youth@hordaland; 47.4% males), we estimated group-based trajectories of conduct problems and the presence of time-varying peer problems on the developmental progression of conduct problems between seven and 19 years of age. Risk factors for group membership were also examined., Results: A 3-group model of conduct problems best fit the data (non-engagers, low-engagers, moderate-stable). The presence of peer problems increased the estimated level of conduct problems for both the low-engagers and moderate-stable groups across adolescence. No differences in conduct problems were observed when peer problems were present in childhood or preadolescence for these two groups, nor for the non-engagers group at any point. Being male, having lower perceived economic wellbeing, and lower levels of parental education predicted group membership for the moderate-stable group, whilst lower paternal education predicted membership for the low-engagers group., Conclusions: Support for developmental 'turning points' was found, suggesting that adolescence is a particularly salient time for those with conduct problems. In particular, the presence of peer problems can increase observed conduct problems at this stage in development., (© 2024. The Author(s).)
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- 2024
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32. From outsider to participant: a qualitative study about attaining and retaining work among persons with mental illness.
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Stangeland F, Sveinsdottir V, and Ree E
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- Humans, Male, Female, Norway, Adult, Middle Aged, Motivation, Interviews as Topic, Sick Leave statistics & numerical data, Qualitative Research, Mental Disorders psychology
- Abstract
Background: In Norway, the number of people on sick leave and health-related absence from work has increased over the last few years, and mental illness is one of the main contributing factors. Individual Placement and Support (IPS) and the Qualification Program (QP) are two work-oriented measures offered by Norwegian labor and welfare authorities, aimed at increasing labor market participation among people with health-related problems. The aim of this study was to explore which factors people with mental illnesses found helpful for attaining and retaining work, and their experiences with taking part in IPS and the QP., Methods: The study had a qualitative explorative design. Eight semi-structured interviews with individuals who had attained and retained work after receiving IPS or taking part in the QP were conducted. The data were analyzed using systematic text condensation, a thematic and descriptive, cross-case analysis strategy., Results: The analysis revealed three main themes, each related to the contexts of work and daily life: (1) inclusion and support, (2) structure and routines, and (3) motivation and self-confidence. The participants emphasized the importance of feeling included and supported both at work and by their family and friends. Furthermore, structures and routines at work and in the participants' daily lives kept them engaged and made them feel better, which was important for retaining work. Having the motivation to attain and retain work was essential and seemed to increase over time together with improved self-confidence as a result of being able to stay at work., Conclusion: Inclusion, support, structure, routines, and motivation are decisive for people with mental illnesses in changing their view of their health and increasing their independence and experiences of coping in work and everyday life. Taking part in work-oriented measures seemed to function as a "gateway" to changing behavior for the participants, both in work situations as well as more generally in life., Competing Interests: Declarations. Ethics approval and consent to participate: The Norwegian Regional Committees for Medical and Health Research Ethics exempted the project (reference #497816) because it did not fall under the Health Research Act LOV-2008-06-20-44 §4a. The Act on Medical and Health Research (the Health Research Act). http://app.uio.no/ub/ujur/oversatte-lover/data/lov-20080620-044-eng.pdf . and referred it to the Data Protection Services at the Norwegian Centre for Research Data, who approved the study (reference #238288). The study followed the basic principles of the Helsinki Declaration. Written informed consent was obtained from all the participants in the study. The interviews were audio-recorded using encrypted software and thereafter transcribed using pseudonyms. Consent for publication: Not applicable. Competing interests: The authors declare no competing interests., (© 2024. The Author(s).)
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- 2024
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33. Comparing continuous and perfusion cultivation of microalgae on recirculating aquaculture system effluent water.
- Author
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Böpple H, Slegers PM, Breuhaus P, and Kleinegris DMM
- Abstract
Effluent water from recirculating aquaculture systems (RAS) contains nutrients from fish excrements and leftover feed. This study investigated the nutrient remediation potential from RAS effluent water through microalgae cultivation in 25 L tubular reactors. We compared nutrient uptake and biomass productivity in continuous and perfusion cultivation modes for freshwater, brackish water and saltwater. Stable high biomass densities were achieved with additional nitrate during continuous cultivation (up to 3.88 g L
-1 ) or by membrane filtration during perfusion cultivation (up to 3.59 g L-1 ). A life cycle assessment (LCA) compared the two different cultivation modes in terms of environmental sustainability on a 1 ha scale. The LCA and preliminary economic assessment showed that perfusion cultivation appears to have a lower environmental impact for relatively low nutrient concentrations, but additional equipment and higher energy demands are leading to increased operational (+6 %) and capital expenses (up to +60 %)., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)- Published
- 2024
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34. Staff retention and mortality.
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Sandvik H and Hunskaar S
- Abstract
Competing Interests: Competing interests: The BMJ has judged that there are no disqualifying financial ties to commercial companies. The authors declare the following other interests: None. Further details of The BMJ policy on financial interests is here: https://www.bmj.com/sites/default/files/attachments/resources/2016/03/16-current-bmj-education-coi-form.pdf.
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- 2024
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35. Variation in general practitioners' follow-up of depressed patients starting antidepressant medication: a register-based cohort study.
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Hansen AB, Hetlevik Ø, Baste V, Haukenes I, Smith-Sivertsen T, and Ruths S
- Abstract
Background: Guidelines recommend follow-up within 2 weeks for patients starting medication for depression. Knowledge is lacking about how general practitioners' (GPs) follow-up varies with patients' sociodemographic characteristics., Objective: To describe follow-up by GP and specialist in mental healthcare provided to men and women with depression within 3 months of starting drug therapy. Furthermore, to examine whether follow-up varied according to patients' age and education., Methods: Registry-based cohort study comprising all patients aged ≥18 years in Norway with a new depression episode in 2014 who started on antidepressants within 12 months from diagnosis. Patients' age and educational level were the exposures. Outcomes were follow-up by GP and/or mental healthcare specialist, and talking therapy with GP, within 90 days of first prescription. Cox proportional hazard models were used to estimate the likelihood of having follow-up contacts. Log binomial regression analysis was performed to explore the likelihood of having talking therapy with a GP. Time to first contact was illustrated by Kaplan-Meier survival curves., Results: The study population comprised 17 000 patients, mean age 45.7 years, 60.6% women. Only 27.8% of the patients were followed up by GP and/or specialist within 2 weeks of the first drug dispensing, 67.1% within 90 days. Older or less educated men and women received less and later contacts than the younger or more highly educated., Conclusions: Differences in age and educational level were associated with follow-up of depressed patients who started medication. This may indicate unwarranted variation in depression care that GPs should consider when prescribing antidepressants., (© The Author(s) 2024. Published by Oxford University Press.)
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- 2024
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36. Impact of a multifaceted intervention programme on antibiotic prescribing and dispensing in four patient-centred settings in five European countries. The HAPPY PATIENT project.
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García-Sangenís A, Lykkegaard J, Hansen MP, González López-Valcárcel B, Raynal F, Vallejo-Torres L, Bjerrum L, Chalkidou A, Jensen JN, Rebnord I, Lindberg BH, Taxis K, Lambert M, Radzeviciene R, Jaruseviciene L, Touboul Lundgren P, Bruno P, Lesage V, Kowalczyk A, Godycki-Cwirko M, Lionis C, Karkana MN, Anastasaki M, Hansen MB, Olsen JK, Søndergaard J, Modena D, Mally S, Álvarez L, and Llor C
- Abstract
Background: The primary cause of antimicrobial resistance is excessive and non-indicated antibiotic use., Aim: To evaluate the impact of a multifaceted intervention aimed at various healthcare professionals (HCPs) on antibiotic prescribing and dispensing for common infections., Design and Setting: Before-and-after study set in general practice, out-of-hours services, nursing homes, and community pharmacies in France, Greece, Lithuania, Poland, and Spain., Methods: Following the Audit Project Odense method, HCPs from these four settings self-registered encounters with patients related to antibiotic prescribing and dispensing before and after an intervention (February-April 2022 and February-April 2023). Prior to the second registration, the HCPs undertook a multifaceted intervention, which included reviewing and discussing feedback on the first registration's results, enhancing communication skills, and providing communication tools. Indicators to identify potentially unnecessary prescriptions and non-first-line antibiotic choices were developed, and the results of the two registrations were compared., Results: A total of 345 HCPs registered 10 744 infections in the first registration period and 10 207 infections in the second period. In general practice, participants showed a significant 9.8% reduction in unnecessary antibiotic prescriptions in the second period, whereas limited or no effect was observed in out-of-hours services and nursing homes (0.8% reduction and 4.5% increase, respectively). Pharmacies demonstrated an 18% increase in safety checks, and correct advice in pharmacies rose by 17%., Conclusion: External factors like COVID-19, antibiotic shortages, and a streptococcal epidemic impacted the intervention's benefits. Despite this, the intervention successfully improved antibiotic use in both settings., (© The Author(s) 2024. Published by Oxford University Press.)
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- 2024
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37. A comprehensive review of remediation strategies for mitigating salt precipitation and enhancing CO 2 injectivity during CO 2 injection into saline aquifers.
- Author
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Darkwah-Owusu V, Yusof MAM, Sokama-Neuyam YA, Turkson JN, and Fjelde I
- Abstract
Geological CO
2 sequestration is a proven method for mitigating climate change by reducing atmospheric CO2 levels. However, CO2 injection often induces salt precipitation, leading to decreased formation permeability, which in turn limits CO2 injectivity and storage capacity. Conventional approaches, such as freshwater and low-salinity water injection, have been employed to mitigate salt precipitation. Despite their widespread use, these methods provide only temporary improvement and can be ineffective in some scenarios, resulting in long-term issues such as salt recrystallization and clay swelling. Given the complexity and significance of this issue, a comprehensive review of salt precipitation mechanisms and remediation techniques is essential. This paper critically examines the processes of salt precipitation during CO2 injection in saline aquifers and evaluates various remediation techniques aimed at improving CO2 injectivity. The paper reviews the influence of CO2 flow dynamics, geochemical reactions, and fluid properties on salt precipitation and pore throat accumulation, assessing the efficacy and limitations of existing mitigation methods. Additionally, the paper explores alternative techniques with potential for long-term CO2 sequestration, analyzing their advantages and drawbacks. Based on insights from the reviewed sources, the paper recommends exploring alternative treatment measures and the integration of hybrid solutions to enhance CO2 injectivity. The findings presented serve as a valuable reference for advancing research and practice in this critical area, offering a deeper understanding of the challenges and potential solutions for effective CO2 sequestration in saline aquifers., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)- Published
- 2024
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38. A Combined Telemedicine and Ambulatory Wound Care Team Intervention for Improving Cross-Sector Outpatient Chronic Wound Management: Protocol for the Mixed Methods TELE-AMBUS Research Project.
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Høyland SA, Holte KA, Øygarden O, Islam K, Kjerstad E, Gjerstad-Sørensen R, Høyland SA, Wærnes HR, Carayon P, Fallon M, Bradbury S, Gürgen M, Husebø SE, and Rødseth E
- Subjects
- Humans, Chronic Disease therapy, Patient Care Team organization & administration, Quality Improvement, Outpatients, Telemedicine, Ambulatory Care, Wounds and Injuries therapy
- Abstract
Background: There is a growing prevalence of nonhealing wounds and chronic diseases in society, and there is an associated need for wound management solutions that include the use of telemedicine. A broad spectrum of factors influences the planning and execution of interventions within telemedicine in chronic wound management, spanning organizations, technologies, and individuals, including professionals and patients. The Telemedicine and Ambulatory Wound Care Team (TELE-AMBUS) project applies a whole-system research approach to account for this spectrum of factors., Objective: The primary objective of this study was to explore and analyze the implementation and consequences of an outpatient wound management model, comprising 2 interconnected quality improvement interventions (ie, telemedicine and ambulatory wound care team) aimed at older and vulnerable patients with chronic wounds, across the specialist and primary health care sectors. Embedded in this objective is the aim to improve the competence levels of health care providers and, consequently, the service quality of outpatient wound management across specialist and primary health care services., Methods: This project examines the implementation and consequences of an outpatient wound management model through a combined process and economic evaluation research strategy. A sociotechnical system theory approach and multiple work package design support the examination. The project uses observations, conversations, interviews, and economic assessments to gather rich, in-depth insights and understanding on why and how the new wound management model contributes to a change or not compared with the traditional treatment model., Results: The project has been funded from 2021 to 2025. Baseline interviews have been conducted since April 2022 and concluded in January 2024. Fieldwork, including nonparticipant observations, semistructured interviews, and informal conversations, has been conducted since November 2022 and is expected to conclude in March 2025. In parallel and as part of the cost-effectiveness analyses, time usage data on the outpatient and regular clinical models are being gathered during the fieldwork., Conclusions: We applied a whole-system approach in multiple ways, that is, to design or inform our fieldwork and to explore, evaluate, and translate project findings into practice across services. To our knowledge, this approach has not been undertaken in telemedicine in chronic wound management literature and associated human factors and ergonomics research. Thus, our approach can produce both original and novel research and theoretical results internationally., International Registered Report Identifier (irrid): DERR1-10.2196/55502., (©Sindre Aske Høyland, Kari Anne Holte, Olaug Øygarden, Kamrul Islam, Egil Kjerstad, Ragnhild Gjerstad-Sørensen, Synnøve Aske Høyland, Hanne Rusten Wærnes, Pascale Carayon, Maureen Fallon, Sarah Bradbury, Marcus Gürgen, Sissel Eikeland Husebø, Eirin Rødseth. Originally published in JMIR Research Protocols (https://www.researchprotocols.org), 04.11.2024.)
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- 2024
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39. Parasite scars: the impact of salmon lice injury on sea trout populations.
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Vollset KW, Lennox RJ, Lehmann GB, Skår B, Ulgenes I, and Skoglund H
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- Animals, Norway, Ectoparasitic Infestations veterinary, Ectoparasitic Infestations epidemiology, Ectoparasitic Infestations parasitology, Population Dynamics, Trout, Fish Diseases parasitology, Fish Diseases epidemiology, Copepoda physiology
- Abstract
Spillback effects of the parasitic salmon louse from fish farms to wild fish are a critical environmental concern for countries with wild salmon. The ectoparasitic louse causes significant physical and physiological damage to wild salmonids that probably have long-term impacts on individuals and population dynamics. However, empirical links between injuries and abundance of lice have not been established in the wild. This study establishes a strong association between dorsal fin injuries in wild sea trout ( Salmo trutta ) and infestation with salmon lice at a marine site in Norway. We further assessed the prevalence of such injuries on sea trout returning to spawning grounds from snorkelling observations in 16 rivers in Hardangerfjord, western Norway, from 2007 to 2021. The prevalence of injuries decreased with distance from the fjord outlet, from approximately 70% in middle and outer parts to approximately 10% in the inner parts. Additionally, a negative correlation was found between sea trout population size and the proportion of the population with dorsal fin damage. The results demonstrate that salmon lice inflict high levels of injury on significant portions of sea trout populations in areas with intensive fish farming, leading to poorer population status in affected populations.
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- 2024
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40. Chitosan-based insecticide formulations for insect pest control management: A review of current trends and challenges.
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Mohan K, Kandasamy S, Rajarajeswaran J, Sundaram T, Bjeljac M, Surendran RP, and Ganesan AR
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- Animals, Insecta drug effects, Chitosan chemistry, Chitosan pharmacology, Insect Control methods, Insect Control trends, Insecticides chemistry, Insecticides pharmacology
- Abstract
Future agricultural practices necessitate green alternatives to replace hazardous insecticides while distinguishing between pests and beneficial insects. Chitosan, as a biological macromolecule derived from chitin, is biodegradable and exhibits low toxicity to non-target organisms, making it a sustainable alternative to synthetic pesticides. This review identifies chitosan-derivatives for insecticidal activity and highlights its efficacy including genotoxicity, defense mechanism, and disruption of insect's exoskeleton at different concentrations against several insect pests. Similarly, synergistic effects of chitosan in combination with natural extracts, essential oils, and plant-derived compounds, enhances insecticidal action against various pests was evaluated. The chitosan-based insecticide formulations (CHIF) in the form of emulsions, microcapsules, and nanoparticles showed efficient insecticide action on the targeted pests with less environmental impact. The current challenges associated with the field-trial application were also recognized, by optimizing potent CHIF-formulation parameters, scaling-up process, and regulatory hurdles addressed alongside potential solutions. These findings will provide insight into achieving the EU mission of reducing chemical pesticides by 50 %., Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 Elsevier B.V. All rights reserved.)
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- 2024
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41. Anaphylaxis after Treatment with an Endodontic Material Containing Polyethylene Glycol.
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Alnæs M, Storaas T, Vindenes HK, Guttormsen AB, and Björkman L
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- Humans, Female, Male, Fatal Outcome, Middle Aged, Adult, Anaphylaxis chemically induced, Polyethylene Glycols adverse effects, Root Canal Filling Materials adverse effects
- Abstract
Polyethylene glycol (PEG) is sometimes included in temporary endodontic filling materials to modify viscosity. PEG is considered a low hazard chemical, but parenteral PEG exposure is associated with a risk of anaphylaxis. We report 2 cases of anaphylaxis after treatment with an endodontic temporary filling material containing PEG. One patient survived after hospital treatment, but the second case was fatal. Extensive investigations were needed to find the culprit. Allergic reactions to PEG are increasingly reported and have significant implications for the patient. Precautionary measures are discussed., (Copyright © 2024 The Authors. Published by Elsevier Inc. All rights reserved.)
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- 2024
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42. Taxonomic and abundance biases affect the record of marine eukaryotic plankton communities in sediment DNA archives.
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Nguyen NL, Pawłowska J, Zajaczkowski M, Weiner AKM, Cordier T, Grant DM, De Schepper S, and Pawłowski J
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- DNA Barcoding, Taxonomic methods, RNA, Ribosomal, 18S genetics, Eukaryota genetics, Eukaryota classification, DNA, Environmental genetics, Biota, Aquatic Organisms genetics, Aquatic Organisms classification, Seawater, Sequence Analysis, DNA methods, Geologic Sediments chemistry, Plankton genetics, Plankton classification, Biodiversity
- Abstract
Environmental DNA (eDNA) preserved in marine sediments is increasingly being used to study past ecosystems. However, little is known about how accurately marine biodiversity is recorded in sediment eDNA archives, especially planktonic taxa. Here, we address this question by comparing eukaryotic diversity in 273 eDNA samples from three water depths and the surface sediments of 24 stations in the Nordic Seas. Analysis of 18S-V9 metabarcoding data reveals distinct eukaryotic assemblages between water and sediment eDNA. Only 40% of Amplicon Sequence Variants (ASVs) detected in water were also found in sediment eDNA. Remarkably, the ASVs shared between water and sediment accounted for 80% of total sequence reads suggesting that a large amount of plankton DNA is transported to the seafloor, predominantly from abundant phytoplankton taxa. However, not all plankton taxa were equally archived on the seafloor. The plankton DNA deposited in the sediments was dominated by diatoms and showed an underrepresentation of certain nano- and picoplankton taxa (Picozoa or Prymnesiophyceae). Our study offers the first insights into the patterns of plankton diversity recorded in sediment in relation to seasonality and spatial variability of environmental conditions in the Nordic Seas. Our results suggest that the genetic composition and structure of the plankton community vary considerably throughout the water column and differ from what accumulates in the sediment. Hence, the interpretation of sedimentary eDNA archives should take into account potential taxonomic and abundance biases when reconstructing past changes in marine biodiversity., (© 2024 John Wiley & Sons Ltd.)
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- 2024
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43. Perineal tear and childbirth-related posttraumatic stress: A prospective cohort study.
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Baumann S, Staudt A, Horesh D, Eberhard-Gran M, Garthus-Niegel S, and Horsch A
- Abstract
Objective: Quantitative studies examining the occurrence of childbirth-related posttraumatic stress disorder (CB-PTSD) following severe perineal rupture are lacking. The objective of this population-based study was to investigate the prospective associations between the degree of perineal tear during childbirth and CB-PTSD symptoms, when adjusting for known covariates (maternal age, years of school education, premature birth, and parity). We hypothesized that women with different degrees of perineal tear will differ regarding (1) the level of CB-PTSD symptoms at 8 weeks and 2 years postpartum and (2) the rate of change in CB-PTSD symptoms from 8 weeks to 2 years postpartum., Method: Secondary data analysis from the Akershus Birth Cohort, a large population-based prospective cohort study using self-report questionnaires and hospital record data., Results: The degree of perineal tear was significantly associated with CB-PTSD symptoms at 8 weeks and 2 years postpartum. However, the degree of perineal tear was not significantly associated with the change in CB-PTSD symptoms over time. Similar patterns were found for both total CB-PTSD symptoms as well as for avoidance and intrusion symptoms only., Conclusion: Results seem to support a dose-response model, suggesting that the higher the severity of the perineal tear, the higher the posttraumatic morbidity., (© 2023 The Authors. Acta Psychiatrica Scandinavica published by John Wiley & Sons Ltd.)
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- 2024
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44. Accelerated ensemble optimization using momentum methods.
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Nilsen MM, Stordal AS, Lorentzen RJ, Raanes PN, and Eikrem KS
- Abstract
We investigate the use of various momentum methods in combination with an ensemble approximation of gradients, for accelerated optimization. Although momentum gradient descent methods are popular in machine learning, it is unclear how they perform when applied to time-consuming dynamic problems such as production optimization for petroleum reservoir management. Four different momentum methods are extensively tested on a reservoir test case in one deterministic and one robust setting. The numerical experiments show that momentum strategies yield, on average, a higher net present value with fewer simulations needed., (© 2024. The Author(s).)
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- 2024
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45. Sexual Distress and Quality of Life in Women With Genital Erosive Lichen Planus-A Cross-sectional Study.
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Skullerud KH, Gjersvik P, Eberhard-Gran M, Pripp AH, Qvigstad E, Vangen S, and Helgesen ALO
- Abstract
Objective: The study aimed to assess sexual distress and quality of life in women with moderate-to-severe genital erosive lichen planus (GELP)., Materials and Methods: Thirty-six women with GELP were recruited at the Oslo University Hospital in Norway. The diagnosis was confirmed by a dermatologist with experience in vulvovaginal disease and based on characteristic clinical changes in the vulva and/or vagina, and biopsy results if available. Clinical severity was measured using the GELP score with a score ≥5 required for inclusion. Sexual distress was measured using the revised Female Sexual Distress Scale (FSDS-R), and quality of life was measured using the Dermatology Life Quality Index (DLQI). Topical steroid treatment was allowed., Results: The mean FSDS-R score was 22.7 (range 0-45) with 27 women reporting high scores for sexual distress (FSDS-R score >15). The mean DLQI score was 8.8 (range 1-19) with 15 women reporting a moderate impact (DLQI score 6-10), and 12 women reporting a very large impact (DLQI score 11-20) of GELP on their quality of life. No clear correlations were found between disease severity assessed by GELP scores and FSDS-R or DLQI scores. Age was not correlated with FSDS-R or DLQI scores., Conclusions: These results demonstrate that a substantial number of women with GELP experience sexual distress and a reduced quality of life., Competing Interests: The authors have declared they have no conflicts of interest., (Copyright © 2024 The Author(s). Published by Wolters Kluwer Health, Inc. on behalf of the ASCCP.)
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- 2024
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46. Pregnancy-Associated Maternal Mortality Within One Year After Childbirth: Population-Based Cohort Study.
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Arshad N, Skjærven R, Klungsøyr K, Sørbye LM, Kvalvik LG, and Morken NH
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Objective: The objective of this study is to assess associations between pregnancy complications and pregnancy-associated maternal mortality (PAM) within 1 year after childbirth., Design: Population-based cohort study., Setting: Norway, 1967-2020., Population: 1 237 254 mothers with one or more singleton pregnancies registered in the Medical Birth Registry, 1967-2019 and followed in the Cause of Death Registry to 2020., Methods: Logistic regression was used to calculate odds ratios (ORs) with 95% confidence intervals (CIs), adjusted for maternal education, age, year of first childbirth and chronic medical conditions., Main Outcome Measures: PAM by lifetime history of pregnancy complications: placental abruption, preeclampsia, preterm birth, perinatal death, small for gestational age (< 2.5 percentile), gestational diabetes and gestational hypertension., Results: Crude OR for PAM was 4.24 (95% CI 3.53-5.10), if complications occurred in the last pregnancy, whereas 2.52 (2.08-3.06) if complications occurred in the first pregnancy, compared to mothers without complications in any pregnancy. Adjusted ORs for PAM when complications occurred in the last pregnancy were, for placental abruption 3.75 (1.20-11.72), preeclampsia: 4.42 (3.17-6.15), preterm birth: 4.32 (3.25-5.75), perinatal death: 24.18 (16.66-35.08), small for gestational age: 2.90 (1.85-4.54), gestational diabetes: 1.43 (0.63-3.25) and pregnancy hypertension: 2.05 (1.12-3.74) compared to mothers without complications. The OR for PAM increased slightly by increasing the number of complicated pregnancies but the trend was stronger for increasing number of complications in the last pregnancy (e.g., during 1999-2019: one complication; 4.14 [2.79-6.13], two complications; 11.50 [6.81-19.43])., Conclusion: Complications in the last pregnancy were more strongly associated with PAM than those in the first pregnancy., (© 2024 The Author(s). BJOG: An International Journal of Obstetrics and Gynaecology published by John Wiley & Sons Ltd.)
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- 2024
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47. Risk of first hip fracture under treatment with zoledronic acid versus alendronate: a NOREPOS cohort study of 88,000 Norwegian men and women in outpatient care.
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Riska BSL, Gunnes N, Finnes TE, Meyer HE, Hoff M, Omsland TK, and Holvik K
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- Humans, Female, Aged, Male, Norway epidemiology, Aged, 80 and over, Middle Aged, Cohort Studies, Risk Factors, Hip Fractures epidemiology, Zoledronic Acid therapeutic use, Bone Density Conservation Agents therapeutic use, Alendronate therapeutic use, Alendronate administration & dosage, Ambulatory Care statistics & numerical data
- Abstract
We aimed to investigate the risk of hip fracture associated with zoledronic acid treatment compared to alendronate on a population level. The risk of hip fracture was lower in women using zoledronic acid and higher in women who had discontinued treatment. The findings support the effectiveness of intravenous bisphosphonate., Purpose: To investigate whether zoledronic acid (ZOL) was associated with a lower risk of the first hip fracture than alendronate (ALN) in Norway using real-world data., Methods: Nationwide data on drugs dispensed in outpatient pharmacies were individually linked with all hospital-treated hip fractures. Individuals aged 50-89 years without previous hip fracture were included at their first filling of a prescription for ALN or ZOL during 2005-2016. Hazard ratios (HRs) with 95% confidence intervals (95% CIs) for first hip fracture by time-varying exposure to ZOL versus ALN were estimated in sex-stratified flexible parametric survival analyses. Covariates included time-varying accumulated ALN exposure and comorbidity level expressed by the prescription-based Rx-Risk Comorbidity Index, marital status, education, and residential urbanity., Results: Of 75,250 women who initiated treatment, 72,614 (96.5%) were exposed to ALN and 6366 (8.5%) to ZOL. Of 12,739 men who initiated treatment, 12,311 (96.6%) were exposed to ALN and 784 (6.2%) to ZOL. In women, the HR for first hip fracture was 0.75 (95% CI: 0.61-0.91) for ZOL versus ALN. In men, the corresponding HR was 0.59 (95% CI: 0.32-1.07). Discontinued treatment was associated with increased risk compared with current ALN treatment in women (HR: 1.33; 95% CI: 1.24-1.42, men: HR 1.13 (95% CI: 0.95-1.35))., Conclusions: In women, the risk of first hip fracture when treated with ZOL was 25% lower than when treated with ALN. Discontinued treatment was associated with a 33% increase in hip fracture risk. Similar, albeit statistically non-significant, results were observed in men., (© 2024. The Author(s).)
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- 2024
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48. Assessing the potential for gas supersaturation downstream of hydropower plants in Norway, Austria and Germany.
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Pulg U, Lennox RJ, Enqvist M, Stranzl SF, Espedal EO, Schwarz M, Lorke A, Flödl P, Hauer C, Schletterer M, Halleraker JH, and Velle G
- Subjects
- Austria, Germany, Norway, Risk Assessment, Rivers chemistry, Water Pollutants, Chemical analysis, Gases analysis, Power Plants, Environmental Monitoring methods
- Abstract
Hydroelectric power facilities can generate episodic total dissolved gas supersaturation (TDGS), which is harmful to aquatic life. We developed a decision tree-based risk assessment to identify the potential for TDGS at hydropower plants and conducted validation measurements at selected facilities. Applying the risk model to Norway's hydropower plants (n = 1696) identified 473 (28 %) high-risk plants characterized by secondary intakes and Francis or Kaplan turbines, which are prone to generating TDGS when air is entrained. More than half of them discharge directly to rivers (283, 17 % of total). Measurements at 11 high-risk plants showed that 8 of them exhibited biologically relevant TDGS (120 % to 229 %). In Austria and Germany, the analysis of hydropower plants was limited due to significant data constraints. Out of 153 hydropower plants in Austria, 80 % were categorized at moderate risk for TDGS. Two Austrian plants were monitored, revealing instances of TDGS in both (up to 125 %). In Germany, out of 403 hydropower plants, 265 (66 %) fell into the moderate risk, with none in the high-risk category. At a dam in the Rhine River, TDGS up to 118 % were observed. Given the uncertainty due to limited data access and the prevalence of run-of-river plants in Austria and Germany, there remains an unclarified risk of TDGS generation in these countries, especially at spillways of dams and below aerated turbines. The results indicate a previously overlooked potential for the generation of biologically harmful TDGS at hydropower installations. It is recommended to systematically screen for TDGS at hydropower installations through risk assessment, monitoring, and, where needed, the implementation of mitigation measures. This is increasingly critical considering the expanding global initiatives in hydropower and efforts to maintain the ecological status of freshwater ecosystems., Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Martin Schletterer reports a relationship with TIWAG Tyrolean Hydropower that includes: employment. If there are other authors, they declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper., (Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
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- 2024
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49. Pathogens from salmon aquaculture in relation to conservation of wild Pacific salmon in Canada.
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Krkosek M, Bateman AW, Bass AL, Bugg WS, Connors BM, Deeg CM, Di Cicco E, Godwin S, Grimm J, Krichel L, Mordecai G, Morton A, Peacock S, Shea D, Riddell B, and Miller KM
- Subjects
- Animals, Canada epidemiology, Conservation of Natural Resources, British Columbia epidemiology, Animals, Wild, Aquaculture, Fish Diseases virology, Fish Diseases epidemiology, Fish Diseases microbiology, Salmon virology
- Abstract
The spread of pathogens from farmed salmon is a conservation concern for wild Pacific salmon in British Columbia (BC), Canada. Three pathogens are prevalent in farmed Atlantic salmon in BC, spill over to wild Pacific salmon, and are linked to negative impacts on wild salmon: Piscine orthoreovirus, Tenacibaculum spp., and sea lice ( Lepeophtheirus salmonis ). Molecular screening of infectious agents in farmed and wild salmon and environmental DNA highlights a further 4 agents that are likely elevated near salmon farms and 37 that co-occur in wild and farmed salmon. Pathogens likely affect wild salmon indirectly by mediating migration, competition, and predation. Current net-pen aquaculture practices pose these risks to numerous populations of all species of wild salmon in BC, most of which are not covered in Government of Canada science and advisory reports. Climate change, pathogen evolution, and changes to disease management and aquaculture regulations will influence future risks.
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- 2024
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50. Longitudinal investigation of a single variant SARS-CoV-2-outbreak in the immunologically naïve population of Ulvik, Norway.
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Mortensen N, Wensaas KA, Solem U, Sivertsen A, Grewal HMS, Rortveit G, Ulvestad E, and Litleskare S
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- Humans, Norway epidemiology, Male, Female, Adult, Child, Middle Aged, Adolescent, Longitudinal Studies, Surveys and Questionnaires, Aged, Young Adult, Child, Preschool, Disease Outbreaks, Fatigue epidemiology, Retrospective Studies, Prospective Studies, COVID-19 epidemiology, COVID-19 immunology, SARS-CoV-2 immunology, SARS-CoV-2 genetics
- Abstract
Purpose: To perform an extensive investigation of the clinical features and long-term complications among the n = 134 adults and children with nucleic acid amplification test (NAAT) verified SARS-CoV-2-infection in the immunologically naïve population of Ulvik, Norway, during the single variant B.1.1.7 outbreak in late January through February 2021., Methods: Every infected person regardless of whether symptoms of COVID-19 were present was invited to answer a web-based questionnaire at two- and seven months after testing positive. The period from initial infection to the first questionnaire was assessed retrospectively, and the time points at two- and seven months were assessed prospectively., Results: A total of 87 of 134 (65%) NAAT-positive persons answered the first questionnaire, of which 35/87 (40%) were children, and 74 of 87 (85%) answered the second questionnaire. Children experienced symptoms less often than adults during the acute phase of infection (51% (18/35) versus 81% (42/52) (p = .004)). At two-months follow-up 88% (53/60) of participants with symptoms during the acute phase, including all children, reported no longer having symptoms. Among those with persisting symptoms at seven months, fatigue (18/25) and insomnia (16/24) were common., Conclusion: In an immunologically naïve population infected with the SARS-CoV-2 B.1.1.7 variant, the clinical features of acute phase symptoms were similar to previous studies. Children underwent asymptomatic infection more often than adults, and adults more often experienced persisting symptoms. Insomnia and fatigue were common complaints among those with persisting symptoms seven months after infection., (© 2024. The Author(s).)
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- 2024
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