Browsing Det matematisk-naturvitenskapelige fakultet by Title

Now showing items 323-342 of 838

  • Genetic Characterization in High-Risk Individuals from a Low-Resource City of Peru 
    Zavaleta, Elizabeth; Solis, Nelly; Palacios, Maria Isabel; Zevallos-Escobar, Liz Elva; Corales, Edison Vasquez; Bazo-Alvarez, Juan Carlos; Dominguez-Barrera, Constantino; Campos, Anthony; Wernhoff, Patrik; Ekstrøm, Per Olaf; Møller, Pål; Visnovska, Martina; Hovig, Eivind; Balazar-Palacios, Janina; Alvarez-Valenzuela, Karin; Nakken, Sigve; Dominguez-Valentin, Mev (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Background: Genetic testing for hereditary cancers is inconsistently applied within the healthcare systems in Latin America. In Peru, the prevalence and spectrum of cancer-predisposing germline variants is thus poorly ...
  • Genome-wide analysis reveals genetic overlap between alcohol use behaviours, schizophrenia and bipolar disorder and identifies novel shared risk loci 
    Wiström, Erik David; O'Connell, Kevin Sean; Karadag, Naz; Bahrami, Shahram; Hindley, Guy Frederick Lanyon; Lin, Aihua; Cheng, Weiqiu; Steen, Nils Eiel; Shadrin, Alexey; Frei, Oleksandr; Djurovic, Srdjan; Dale, Anders M.; Andreassen, Ole A.; Smeland, Olav Bjerkehagen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Background and aim Schizophrenia (SCZ) and bipolar disorder (BD) have a high comorbidity of alcohol use disorder (AUD), and both comorbid AUD and excessive alcohol consumption (AC) have been linked to greater illness ...
  • Genome-wide Association Analysis of Schizophrenia and Vitamin D Levels Shows Shared Genetic Architecture and Identifies Novel Risk Loci 
    Jaholkowski, Piotr Pawel; Hindley, Guy; Shadrin, Alexey; Tesfaye, Markos; Bahrami, Shahram; Nerhus, Mari; Rahman, Zillur; O'Connell, Kevin Sean; Holen, Børge; Parker, Nadine; Cheng, Weiqiu; Lin, Aihua; Rødevand, Linn; Karadag, Naz; Frei, Oleksandr; Djurovic, Srdjan; Dale, Anders M.; Smeland, Olav Bjerkehagen; Andreassen, Ole (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract Low vitamin D (vitD) levels have been consistently reported in schizophrenia (SCZ) suggesting a role in the etiopathology. However, little is known about the role of underlying shared genetic mechanisms. ...
  • Genome-Wide Transcript Profiling of Endosperm without Paternal Contribution Identifies Parent-of-Origin-Dependent Regulation of AGAMOUS-LIKE36 
    Shirzadi, Reza; Andersen, Ellen Dehnes; Bjerkan, Katrine; Gloeckle, Barbara M; Heese, Maren; Ungru, Alexander; Winge, Per; Koncz, C; Aalen, Reidunn B.; Schnittger, Arp; Grini, Paul Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    Seed development in angiosperms is dependent on the interplay among different transcriptional programs operating in the embryo, the endosperm, and the maternally-derived seed coat. In angiosperms, the embryo and the endosperm ...
  • Geometric Stoichiometry: Unifying Concepts of Animal Nutrition to Understand How Protein-Rich Diets Can Be “Too Much of a Good Thing” 
    Anderson, Thomas R.; Raubenheimer, David; Hessen, Dag Olav (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Understanding the factors that control the growth of heterotrophic organisms is central to predicting food web interactions and biogeochemical cycling within ecosystems. We present a new framework, Geometric Stoichiometry ...
  • Gold(I) N-heterocyclic carbene precursors for focused electron beam-induced deposition 
    Glessi, Cristiano; Mahgoub, Aya; Hagen, Cornelis W.; Tilset, Mats (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Seven gold(I) N-heterocyclic carbene (NHC) complexes were synthesized, characterized, and identified as suitable precursors for focused electron beam-induced deposition (FEBID). Several variations on the core Au(NHC)X ...
  • Grain size sensitive creep during simulated seismic slip in nanogranular fault gouges: constraints from Transmission Kikuchi Diffraction (TKD) 
    Demurtas, Matteo; Smith, Steven A.F.; Prior, David J.; Brenker, Frank E.; Di Toro, Giulio (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    Nanograins (≪1 μm) are common in the principal slip zones of natural and experimental faults, but their formation and influence on fault mechanical behavior are poorly understood. We performed transmission Kikuchi diffraction ...
  • Granular porous landslide tsunami modelling – the 2014 Lake Askja flank collapse 
    Rauter, Matthias; Viroulet, Sylvain; Gylfadóttir, Sigríður Sif; Fellin, Wolfgang; Løvholt, Finn (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    Subaerial landslides and volcano flank collapses can generate tsunamis with devastating consequences. The lack of comprehensive models incorporating both the landslide and the wave mechanics represents a gap in providing ...
  • Gravitational and Finite-Size Effects On Pressure Saturation Curves During Drainage 
    Ayaz, Monem; Toussaint, Renaud; Schäfer, Gerhard; Måløy, Knut Jørgen (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    We experimentally and numerically study the influence of gravity and finite-size effects on the pressure-saturation relationship in a given porous medium during slow drainage. The effect of gravity is systematically varied ...
  • H passivation of Li on Zn-site in ZnO: Positron annihilation spectroscopy and secondary ion mass spectrometry 
    Johansen, Klaus Magnus H; Zubiaga, Asier; Tuomisto, Filip; Monakhov, Edouard; Kuznetsov, Andrej; Svensson, Bengt Gunnar (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2011)
    The interaction of hydrogen (H) with lithium (Li) and zinc vacancies (VZn) in hydrothermally grown n-type zinc oxide (ZnO) has been investigated by positron annihilation spectroscopy (PAS) and secondary ion mass spectrometry. ...
  • Hall effect measurements on thermoelectric Ca3Co4O9: On how to determine the charge carrier concentration in strongly correlated misfit cobaltites 
    Schrade, Matthias; Norby, Truls; Finstad, Terje (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2015)
    The Hall coefficient RH and electrical conductivity of misfit calcium cobalt oxide (Ca2CoO3−δ)q(CoO2) (CCO) were measured at room temperature for different oxygen vacancy concentrations δ. Based on these and numerous ...
  • Heritability Estimation of Cognitive Phenotypes in the ABCD Study® Using Mixed Models 
    Smith, Diana M.; Loughnan, Robert; Friedman, Naomi P.; Parekh, Pravesh; Frei, Oleksandr; Thompson, Wesley K.; Andreassen, Ole; Neale, Michael; Jernigan, Terry L.; Dale, Anders M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Abstract Twin and family studies have historically aimed to partition phenotypic variance into components corresponding to additive genetic effects ( A ), common environment ( C ), and unique environment ( E ). Here we ...
  • hGSuite HyperBrowser: A web-based toolkit for hierarchical metadata-informed analysis of genomic tracks 
    Kalyanasundaram, Sumana; Lefol, Yohan Pierre; Gundersen, Sveinung; Rognes, Torbjørn; Alsøe, Lene; Nilsen, Hilde; Hovig, Eivind; Sandve, Geir Kjetil Ferkingstad; Domanska, Diana (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Many high-throughput sequencing datasets can be represented as objects with coordinates along a reference genome. Currently, biological investigations often involve a large number of such datasets, for example representing ...
  • High electron mobility single-crystalline ZnSnN2 on ZnO (0001) substrates 
    Gogova, Daniela; Olsen, Vegard Skiftestad; Bazioti, Kalliopi; Lee, In-Hwan; Prytz, Øystein; Vines, Lasse; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / SubmittedVersion, 2020)
    Making a systematic effort, we have developed single-crystalline ZnSnN2 on ZnO (0001) by reactive magnetron co-sputtering. Epitaxial growth was achieved at 350 °C by co-sputtering from metal targets in a nitrogen atmosphere, ...
  • High entropy alloy CrFeNiCoCu sputter deposited films: Structure, electrical properties, and oxidation 
    Mayandi, Jeyanthinath; Schrade, Matthias; Vajeeston, Ponniah; Stange, Marit Synnøve Sæverud; Lind, Anna Maria; Sunding, Martin Fleissner; Deuermeier, Jonas; Fortunato, Elvira; Løvvik, Ole Martin; Ulyashin, Alexander; Diplas, Spyridon; Almeida Carvalho, Patricia; Finstad, Terje Gunnar (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    High entropy alloy (HEA) films of CrFeCoNiCu were deposited by sputtering. Their structure was characterized and their electric transport properties were studied by temperature-dependent Hall and Seebeck measurements. The ...
  • High mobility of intrinsic defects in α-Ga2O3 
    Azarov, Alexander; Park, Ji-Hyeon; Jeon, Dae-Woo; Kuznetsov, Andrej (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
    Migration properties of the intrinsic defects were investigated in α-Ga2O3 by controllable introduction of the lattice disorder with ion irradiation and monitoring its evolution as a function of ion dose, flux, and ...
  • High performance and toxicity assessment of Ta3N5 nanotubes for photoelectrochemical water splitting 
    Xu, Kaiqi; Chatzitakis, Athanasios Eleftherios; Risbakk, Sanne; Yang, Mingyi; Backe, Paul Hoff; Grandcolas, Mathieu; Bjørås, Magnar; Norby, Truls Eivind (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2019)
    In this work, Co-based cocatalysts are electrodeposited on mesoporous Ta3N5 nanotubes. The electrodeposition time is varied and the optimized photoelectrode reaches a photocurrent density of 6.3 mA/cm2 at 1.23 V vs. SHE, ...
  • High Performance Predictable Quantum Efficient Detector Based on Induced-Junction Photodiodes Passivated with SiO2/SiNx 
    Koybasi, Ozhan; Nordseth, Ørnulf; Tran, Trinh; Povoli, Marco; Rajteri, Mauro; Pepe, Carlo; Bardalen, Eivind; Manoocheri, Farshid; Summanwar, Anand; Korpusenko, Mikhail; Getz, Michael Norderhaug; Ohlckers, Per; Ikonen, Erkki; Gran, Jarle (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    We performed a systematic study involving simulation and experimental techniques to develop induced-junction silicon photodetectors passivated with thermally grown SiO2 and plasma-enhanced chemical vapor deposited (PECVD) ...
  • High power iron phosphate cathodes by atomic layer deposition 
    Brennhagen, Anders; Kvamme, Kristian Breivik; Sverdlilje, Katja S. S.; Nilsen, Ola (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Amorphous thin films of FePO4 and Fe4(P2O7)3 show excellent power capabilities and good stability as cathode materials in Li-ion batteries. Within our tested range of materials, 10 nm FePO4 shows the best results and can ...
  • High temperature transport properties of thermoelectric CaMnO3-d - Indication of strongly interacting small polarons 
    Schrade, Matthias; Kabir, Rezaul; Li, Sean; Norby, Truls; Finstad, Terje (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    The conductivity and Seebeck coefficient of CaMnO3−δ have been studied at temperatures up to 1000 °C and in atmospheres with controlled oxygen partial pressure. Both transport coefficients were varied in situ by the ...