Browsing Det matematisk-naturvitenskapelige fakultet by Title

Now showing items 726-745 of 838

  • The ABCflux database: Arctic–boreal CO2 flux observations and ancillary information aggregated to monthly time steps across terrestrial ecosystems 
    Virkkala, Anna-Maria; Natali, Susan M.; Rogers, Brendan M.; Watts, Jennifer D.; Savage, Kathleen; Connon, Sara June; Mauritz, Marguerite; Schuur, Edward A. G.; Peter, Darcy; Minions, Christina; Nojeim, Julia; Commane, Roisin; Emmerton, Craig; Goeckede, Mathias; Helbig, Manuel; Holl, David; Iwata, Hiroki; Kobayashi, Hideki; Kolari, Pasi; López-Blanco, Efrén; Marushchak, Maija E.; Mastepanov, Mikhail; Merbold, Lutz; Parmentier, Frans-Jan W.; Peichl, Matthias; Sachs, Torsten; Sonnentag, Oliver; Ueyama, Masahito; Voigt, Carolina; Aurela, Mika; Boike, Julia; Celis, Gerardo; Chae, Namyi; Christensen, Torben R; Bret-Harte, M. Syndonia; Dengel, Sigrid; Dolman, Han; Edgar, Colin W.; Elberling, Bo; Euskirchen, Eugénie S.; Grelle, Achim; Hatakka, Juha; Humphreys, Elyn; Järveoja, Järvi; Kotani, Ayumi; Kutzbach, Lars; Laurila, Tuomas; Lohila, Annalea; Mammarella, Ivan; Matsuura, Yojiro; Meyer, Gesa; Nilsson, Mats B.; Oberbauer, Steven F.; Park, Sang-Jong; Petrov, Roman; Prokushkin, Anatoly S.; Schulze, Christopher; St. Louis, Vincent L.; Tuittila, Eeva-Stiina; Tuovinen, Juha Pekka; Quinton, William; Varlagin, Andrej; Zona, Donatella; Zyryanov, Viacheslav I. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Abstract. Past efforts to synthesize and quantify the magnitude and change in carbon dioxide (CO2) fluxes in terrestrial ecosystems across the rapidly warming Arctic–boreal zone (ABZ) have provided valuable information but ...
  • The Advantage of Nanowire Configuration in Band Structure Determination 
    Dimitrievska, Mirjana; Hage, Fredrik Sydow; Escobar Steinvall, Simon; P. Litvinchuk, Alexander; Z. Stutz, Elias; Ramasse, Quentin M.; Fontcuberta i Morral, Anna (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Earth-abundant and environmentally friendly semiconductors offer a promising path toward low-cost mass production of solar cells. A critical aspect in exploring new semiconducting materials and demonstrating their enhanced ...
  • The average and local structure of TiVCrNbDx (x = 0, 2.2, 8) from total scattering and neutron spectroscopy 
    Nygård, Magnus Moe; Fjellvåg, Øystein; Sørby, Magnus Helgerud; Sakaki, Kouji; Ikeda, Kazutaka; Armstrong, Jeff; Vajeeston, Ponniah; Slawinski, Wojciech Andrzej; Kim, Hyunjeong; Machida, Akihiko; Nakamura, Yumiko; Hauback, Bjørn (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    The volumetric hydrogen density of 160 kg H/m 3 in TiVCrNbH 8 is among the highest for interstitial hy- drides, but the reported reversible capacity is only about 2/3 of the full theoretical capacity at room temperature. ...
  • The benefits of using a consistent tangent operator for viscoelastoplastic computations in geodynamics 
    Duretz, Thibault; Souche, Alban; de Borst, René; Le Pourhiet, Laeticia (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2018)
    Strain localization is ubiquitous in geodynamics and occurs at all scales within the lithosphere. How the lithosphere accommodates deformation controls, for example, the structure of orogenic belts and the architecture of ...
  • The Boreal–Arctic Wetland and Lake Dataset (BAWLD) 
    Olefeldt, David; Hovemyr, Mikael; Kuhn, McKenzie A.; Bastviken, David; Bohn, Theodore J.; Connolly, John; Crill, Patrick; Euskirchen, Eugénie S.; Finkelstein, Sarah A.; Genet, Helene; Grosse, Guido; Harris, Lorna I.; Heffernan, Liam; Helbig, Manuel; Hugelius, Gustaf; Hutchins, Ryan; Juutinen, Sari; Lara, Mark J.; Malhotra, Avni; Manies, Kristen; McGuire, A. David; Natali, Susan M.; O'Donnell, Jonathan A.; Parmentier, Frans-Jan W.; Räsänen, Aleksi; Schädel, Christina; Sonnentag, Oliver; Strack, Maria; Tank, Suzanne E.; Treat, Claire; Varner, Ruth K.; Virtanen, Tarmo; Warren, Rebecca K.; Watts, Jennifer D. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Methane emissions from boreal and arctic wetlands, lakes, and rivers are expected to increase in response to warming and associated permafrost thaw. However, the lack of appropriate land cover datasets for scaling ...
  • The CryoGrid community model (version 1.0) - a multi-physics toolbox for climate-driven simulations in the terrestrial cryosphere 
    Westermann, Sebastian; Ingeman-Nielsen, Thomas; Scheer, Johanna; Aalstad, Kristoffer; Aga, Juditha; Chaudhary, Nitin; Etzelmüller, Bernd; Filhol, Simon; Kääb, Andreas; Renette, Cas; Schmidt, Louise Steffensen; Schuler, Thomas; Zweigel, Robin Benjamin; Martin, Leo Celestin Paul; Morard, Sarah; Ben-Asher, Matan; Angelopoulos, Michael; Boike, Julia; Groenke, Brian; Miesner, Frederieke; Nitzbon, Jan; Overduin, Paul; Stuenzi, Simone M.; Langer, Moritz (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    The CryoGrid community model is a flexible toolbox for simulating the ground thermal regime and the ice–water balance for permafrost and glaciers, extending a well-established suite of permafrost models (CryoGrid 1, 2, and ...
  • The DNA dioxygenase ALKBH2 protects Arabidopsis thaliana against methylation damage 
    Meza, Trine Johansen; Moen, Marivi; Vågbø, Cathrine Broberg; Krokan, Hans Einar; Klungland, Arne; Grini, Paul Eivind; Falnes, Pål (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2012)
    The Escherichia coli AlkB protein (EcAlkB) is a DNA repair enzyme which reverses methylation damage such as 1-methyladenine (1-meA) and 3-methylcytosine (3-meC). The mammalian AlkB homologues ALKBH2 and ALKBH3 display ...
  • The dynamics of unsteady frictional slip pulses 
    Pomyalov, Anna; Barras, Fabian; Roch, Thibault; Brener, Efim A.; Bouchbinder, Eran (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
  • The effect of post-deposition annealing conditions on structural and thermoelectric properties of sputtered copper oxide films 
    Chandrasekaran, Abinaya; Bethke, Kevin; Andrei, Virgil; Baumann, Jonas; Pollakowski-Herrmann, Beatrix; Kanngießer, Birgit; Beckhoff, Burkhard; Vásquez, Cristian; Mayandi, Jeyanthinath; Finstad, Terje; Rademann, Klaus (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The development of thin-film thermoelectric applications in sensing and energy harvesting can benefit largely from suitable deposition methods for earth-abundant materials. In this study, p-type copper oxide thin films ...
  • The effects of hydrogenation on the properties of heavy ion irradiated β-Ga2O3 
    Polyakov, A.Y.; Kuznetsov, Andrej; Azarov, Alexander; Miakonkikh, A.V.; Chernykh, A.V.; Vasilev, A.A.; Shchemerov, I.V.; Kochkova, A.I.; Matros, N.R.; Pearton, S.J. (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
    Defects created in lightly Sn-doped (2 × 1016 cm−3) (010)-oriented bulk β-Ga2O3 implanted with 1.2 MeV, 3 × 1015 cm−2 197Au+ ions before and after treatment in hydrogen plasmas at 330 °C were studied by X-ray measurements, ...
  • The evolving energy budget of experimental faults within continental crust: Insights from in situ dynamic X-ray microtomography 
    McBeck, Jessica Ann; Cordonnier, Benoit; Mair, Karen; Renard, Francois (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2019)
    We investigate the evolving distribution of strain produced by a sliding fault within intact crystalline rock, and the energetics of deformation that occur both on- and off-fault. We slid precut faults of differing roughness ...
  • The Fe addition as an effective treatment for improving the radiation resistance of fcc NixFe1-x single-crystal alloys 
    Wyszkowska, E.; Mieszczynski, C.; Kurpaska, L.; Azarov, Alexander; Chromiński, W.; Jóźwik, I.; Esfandiarpour, A.; Kosińska, A.; Kalita, D.; Diduszko, R.; Jagielski, J.; Nori, S.T.; Alava, M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    In this work, five different compositions of fcc Ni and NixFe1-x single crystal alloys namely Ni, Ni0.88Fe0.12, Ni0.77Fe0.23, Ni0.62Fe0.38, Ni0.38Fe0.62 were irradiated by 1.5 MeV 58Ni ions at room temperature in a wide ...
  • The Genetic Architecture of Amygdala Nuclei 
    Mufford, Mary S.; van der Meer, Dennis; Kaufmann, Tobias Herbert; Frei, Oleksandr; Ramesar, Raj; Thompson, Paul M.; Jahanshad, Neda; Morey, Rajendra A.; Andreassen, Ole; Stein, Dan J.; Dalvie, Shareefa (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Background Whereas genetic variants influencing total amygdala volume have been identified, the genetic architecture of its distinct nuclei has yet to be explored. We aimed to investigate whether increased phenotypic ...
  • The genetic architecture of the human thalamus and its overlap with ten common brain disorders 
    Elvsåshagen, Torbjørn; Shadrin, Alexey; Frei, Oleksandr; van der Meer, Dennis; Bahrami, Shahram; Kumar, Vinod J.; Smeland, Olav Bjerkehagen; Westlye, Lars T.; Andreassen, Ole A.; Kaufmann, Tobias (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract The thalamus is a vital communication hub in the center of the brain and consists of distinct nuclei critical for consciousness and higher-order cortical functions. Structural and functional thalamic alterations ...
  • The genetic history of Scandinavia from the Roman Iron Age to the present 
    Rodriguez-Varela, Ricardo; Moore, Kristjan H.S.; Ebenesersdottir, Sunna; Kilinc, Gulsah; Kjellström, Anna; Papmehl-Dufay, Ludvig; Alfsdotter, Clara; Berglund, Birgitta; Alrawi, Loey; Kashuba, Natlija; Sobrado, Veronica; Lagerholm, Vendela Kempe; Gilbert, Edmund; Cavalleri, Gianpiero L.; Hovig, Eivind; Kockum, Ingrid; Olsson, Tomas; Alfredsson, Lars; Hansen, Thomas F.; Werge, Thomas; Munters, Arielle R.; Bernhardsson, Carolina; Skar, Birgitte; Christophersen, Axel; Turner-Walker, Gordon; Gopalakrishnan, Shyam; Daskalaki, Evangelia; Omrak, Ayca; Perez-Ramallo, Patxi; Skoglund, Pontus; Girdland-Flink, Linus; Gunnarsson, Fredrik; Hedenstierna-Jonson, Charlotte; Gilbert, Marcus Thomas Pius; Lidén, Kerstin; Jakobsson, Mattias; Einarsson, Lars Petter; Victor, Helena; Krzewinska, Maja; Zachrisson, Torun; Storå, Jan; Stefánsson, Kári; Helgason, Agnar; Götherström, Anders (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    We investigate a 2,000-year genetic transect through Scandinavia spanning the Iron Age to the present, based on 48 new and 249 published ancient genomes and genotypes from 16,638 modern individuals. We find regional variation ...
  • The genetic structure of Norway 
    Mattingsdal, Morten; Ebenesersdóttir, Sigríður Sunna; Moore, Kristjan H. S.; Andreassen, Ole Andreas; Hansen, Thomas F.; Werge, Thomas; Kockum, Ingrid; Olsson, Tomas; Alfredsson, Lars; Helgason, Agnar; Stefánsson, Kári; Hovig, Johannes Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Abstract The aim of the present study was to describe the genetic structure of the Norwegian population using genotypes from 6369 unrelated individuals with detailed information about places of residence. Using standard ...
  • The Genome of the Great Gerbil Reveals Species-Specific Duplication of an MHCII Gene 
    Nilsson, Pernille; Solbakken, Monica Hongrø; Schmid, Boris Valentijn; Orr, Russell; Lv, Ruichen; Cui, Yujun; Song, Yajun; Zhang, Yujiang; Baalsrud, Helle Tessand; Tørresen, Ole K.; Stenseth, Nils Christian; Yang, Ruifu; Jakobsen, Kjetill Sigurd; Easterday, William Ryan; Jentoft, Sissel (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Abstract The great gerbil (Rhombomys opimus) is a social rodent living in permanent, complex burrow systems distributed throughout Central Asia, where it serves as the main host of several important vector-borne ...
  • The heterogeneous nucleation of threading dislocations on partial dislocations in III-nitride epilayers 
    Smalc-Koziorοwska, Julita; Moneta, J.; Chatzopoulou, P.; Vasileiadis, I.G.; Bazioti, Kalliopi; Prytz, Øystein; Belabbas, I.; Komninou, Ph.; Dimitrakopulos, G.P. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Abstract III-nitride compound semiconductors are breakthrough materials regarding device applications. However, their heterostructures suffer from very high threading dislocation (TD) densities that impair several aspects ...
  • The Impact of Different Hydrogen Configurations on Light- and Elevated-Temperature- Induced Degradation 
    Hammann, Benjamin; Assmann, Nicole; Weiser, Philip Michael; Kwapil, Wolfram; Niewelt, Tim; Schindler, Florian; Søndenå, Rune; Monakhov, Eduard; Schubert, Martin C. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    In this article, the impact of different hydrogen configurations and their evolution on the extent and kinetics of light- and elevated-temperature-induced degradation (LeTID) is investigated in float-zone silicon via charge ...
  • The Influence of Confining Pressure and Preexisting Damage on Strain Localization in Fluid-Saturated Crystalline Rocks in the Upper Crust 
    McBeck, Jessica Ann; Cordonnier, Benoit; Ben-Zion, Yehuda; Renard, Francois (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
    The spatial organization of deformation may provide key information about the timing of catastrophic failure in the brittle regime. In an ideal homogenous system, deformation may continually localize toward macroscopic ...