Blar i Faculty of Mathematics and Natural Sciences på tittel

Viser treff 3061-3080 av 9927

    • Femtosecond-pulse-train ionization of Rydberg wave packets 

      Simonsen, Sigrid Ina; Sørngård, Stian Astad; Førre, Morten; Hansen, Jan Petter (Peer reviewed; Journal article, 2012-10-09)
      We calculate, based on first-order perturbation theory, the total and differential ionization probabilities from a dynamic periodic Rydberg wave packet of a given n-shell exposed to a train of femtosecond laser pulses. The ...

    • Fervidobacterium pennivorans subsp. keratinolyticus subsp. nov., a Novel Feather-Degrading Anaerobic Thermophile 

      Javier Lopez, Ruben; Mandolini, Edoardo; Dzhuraeva, Munavvara; Bobodzhanova, Khursheda; Birkeland, Nils Kåre (Journal article; Peer reviewed, 2022)
      Fervidobacterium pennivorans subsp. keratinolyticus subsp. nov. strain T was isolated from a terrestrial, high-altitude hot spring in Tajikistan. This strain is an obligate anaerobic rod and their cells occur singly, in ...

    • FGF signaling acts on different levels of mesoderm development within Spiralia 

      Andrikou, Carmen; Hejnol, Andreas (Journal article; Peer reviewed, 2021)
      FGF signaling is involved in mesoderm induction in members of deuterostomes (e.g. tunicates, hemichordates), but not in flies and nematodes, in which it has a role in mesoderm patterning and migration. However, we need ...

    • Fibres in Heritage Objects : Identification and Characterisation by Imaging Techniques 

      Lukesova, Hana (Doctoral thesis, 2021-08-27)
      The work presented in this thesis focuses on the identification and characterisation of plant fibres from cultural heritage objects. The main emphasis is on method development (Archaeometry) in the field of optical microscopy. ...

    • Fiducial and differential cross sections of Higgs boson production measured in the four-lepton decay channel in \(\boldsymbol{pp}\) collisions at \(\boldsymbol{\sqrt{s}}\) = 8 TeV with the ATLAS detector 

      Aad, Georges; Abbott, Brad; Abdallah, Jalal; Abdel Khalek, Samah; Abdinov, Ovsat Bahram oglu; Aben, Rosemarie; Abi, Babak; Abolins, Maris; AbouZeid, Hass; Abramowicz, Halina; Buanes, Trygve; Dale, Ørjan; Eigen, Gerald; Kastanas, Alex; Liebig, Wolfgang; Lipniacka, Anna; Martin dit Latour, Bertrand; Rosendahl, Peter Lundgaard; Sandaker, Heidi; Sjursen, Therese B.; Smestad, Lillian; Stugu, Bjarne; Ugland, Maren; Bugge, Lars; Bugge, Magnar Kopangen; Cameron, David Gordon; Catmore, James Richard; Czyczula, Zofia; Franconi, Laura; Gjelsten, Børge Kile; Gramstad, Eirik; Ould-Saada, Farid; Pajchel, Katarina; Pedersen, Maiken; Read, Alexander Lincoln; Røhne, Ole Myren; Stapnes, Steinar; Strandlie, Are; Abreu, Henso; Abreu, Rômulo F.; Adamczyk, Leszek; Adams, David; Adelman, Jareed; Adomeit, Stefanie; Adye, Tim; Agatonovic-Jovin, Tatjana; Aguilar Saavedra, Juan Antonio; Åkerstedt, Henrik; Åkesson, Torsten P.A.; Åsman, Barbro; ATLAS, Collaboration (Peer reviewed; Journal article, 2014-11-10)
      Measurements of fiducial and differential cross sections of Higgs boson production in the \({H \rightarrow ZZ ^{*}\rightarrow 4\ell}\) decay channel are presented. The cross sections are determined within a fiducial phase ...

    • Field Pilot Injection Strategies for CO2 Foam EOR in a Layered Heterogeneous Carbonate Reservoir 

      Kristiansen, Stine Marie (Master thesis, 2018-06-20)
      Injection of CO2 foam for enhanced oil recovery (EOR) may provide economic incentives for large-scale industrial CO2 storage. An international field pilot research program has been initiated to develop and test CO2 foam ...

    • Field studies on the abundance, growth and biofouling of the harvestable red alga Vertebrata lanosa (Linnaeus) T.A.Christensen 

      Bjordal, Mari Vold (Master thesis, 2018-08-10)
      Macroalgae have an important ecological role as primary producers and habitat engineers for fauna in coastal areas, and many species can also be used for human consumption. Like vegetables, macroalgae contain essential ...

    • Field-Aligned and Ionospheric Currents by AMPERE and SuperMAG During HSS/SIR-Driven Storms 

      Pedersen, M.N.; Vanhamäki, H.; Aikio, A.T.; Käki, S.; Workayehu, A.B.; Waters, C.L.; Gjerløv, Jesper (Journal article; Peer reviewed, 2021)
      This study considers 28 geomagnetic storms with Dst $\leq-50$ nT driven by high-speed streams (HSSs) and associated stream interaction regions (SIRs) during 2010-2017. Their impact on ionospheric horizontal and field-aligned ...

    • Field-case simulation of CO2-plume migration using vertical-equilibrium models 

      Nilsen, Halvor Møll; Herrera, Paulo; Ashraf, Seyed Meisam; Ligaard, Ingeborg S.; Iding, Martin; Hermanrud, Christian; Lie, Knut-Andreas; Nordbotten, Jan Martin; Dahle, Helge K.; Keilegavlen, Eirik (Peer reviewed; Journal article, 2011)
      When injected in deep saline aquifers, CO2 moves radially away from the injection well and progressively higher in the formation because of buoyancy forces. Analyzes have shown that after the injection period, CO2 will ...

    • Field-scale impacts of long-term wettability alteration in geological CO2 storage 

      Kassa, Abay; Gasda, Sarah Eileen; Landa-Marbán, David; Sandve, Tor Harald; Kumar, Kundan (Journal article; Peer reviewed, 2022)
      Constitutive functions that govern macroscale capillary pressure and relative permeability are central in constraining both storage efficiency and sealing properties of storage systems. Constitutive functions for porous ...

    • Fifteen emerging challenges and opportunities for vegetation science: a horizon scan by early-career researchers 

      Yannelli, Florencia A.; Bazzichetto, Manuele; Conradi, Timo; Pattison, Zarah; Andrade, Bianca O.; Anibaba, Quadri Agbolade; Bonari, Gianmaria; Chelli, Stefano; Cuk, Mirjana; Damasceno, Gabriella; Fantinato, Edy; Geange, Sonya Rita; Guuroh, Reginald Tang; Holle, Mukhlish Jamal Musa; Küzmič, Filip; Lembrechts, Jonas J.; Mosyaftiani, Amarizni; Šikuljak, Tijana; Teixeira, Juliana; Tordoni, Enrico; Pérez-Valladares, Cloe X.; Sperandii, Marta G. (Journal article; Peer reviewed, 2022)
      With the aim to identify future challenges and opportunities in vegetation science, we brought together a group of 22 early career vegetation scientists from diverse backgrounds to perform a horizon scan. In this contribution, ...

    • Fighting dust explosion hazards in the process industries 

      Eckhoff, Rolf Kristian (Journal article; Peer reviewed, 2020)

    • Filtering duplicate reads from 454 pyrosequencing data 

      Balzer, Susanne Mignon; Malde, Ketil; Grohme, Markus A.; Jonassen, Inge (Peer reviewed; Journal article, 2013)
      Motivation: Throughout the recent years, 454 pyrosequencing has emerged as an efficient alternative to traditional Sanger sequencing and is widely used in both de novo whole-genome sequencing and metagenomics. Especially ...

    • Filtering of FTLE for Visualizing Spatial Separation in Unsteady 3D Flow 

      Pobitzer, Armin; Peikert, Ronald; Fuchs, Raphael; Theisel, Holger; Hauser, Helwig (Peer reviewed; Journal article, 2012)
      In many cases, feature detection for flow visualization is structured in two phases: first candidate identification, and then filtering. With this paper, we propose to use the directional information contained in the ...

    • Finding a Needle in the Virus Metagenome Haystack - Micro-Metagenome Analysis Captures a Snapshot of the Diversity of a Bacteriophage Armoire 

      Ray, Jessica; Dondrup, Michael; Modha, Sejal; Steen, Ida Helene; Sandaa, Ruth-Anne; Clokie, Martha (Peer reviewed; Journal article, 2012-04-11)
      Viruses are ubiquitous in the oceans and critical components of marine microbial communities, regulating nutrient transfer to higher trophic levels or to the dissolved organic pool through lysis of host cells. Hydrothermal ...

    • Finding Common Grounds: The Moral Machine Case 

      Rehman, Anum (Master thesis, 2023-03-06)

    • Finding even subgraphs even faster 

      Goyal, Prachi; Misra, Pranabendu; Panolan, Fahad; Philip, Geevarghese; Saurabh, Saket (Peer reviewed; Journal article, 2015)
      Problems of the following kind have been the focus of much recent research in the realm of parameterized complexity: Given an input graph (digraph) on n vertices and a positive integer parameter k, find if there exist k ...

    • Finding haplotypic signatures in proteins 

      Vasicek, Jakub; Skiadopoulou, Dafni; Kuznetsova, Ksenia; Wen, Bo; Johansson, Stefan; Njølstad, Pål Rasmus; Bruckner, Stefan; Käll, Lukas; Vaudel, Marc (Journal article; Peer reviewed, 2023)
      Background The nonrandom distribution of alleles of common genomic variants produces haplotypes, which are fundamental in medical and population genetic studies. Consequently, protein-coding genes with different ...

    • Finding Induced Subgraphs via Minimal Triangulations 

      Fomin, Fedor; Villanger, Yngve (Peer reviewed; Journal article, 2010)
      Potential maximal cliques and minimal separators are combinatorial objects which were introduced and studied in the realm of minimal triangulation problems in- cluding Minimum Fill-in and Treewidth. We discover unexpected ...

    • Finding k Disjoint Triangles in an Arbitrary Graph 

      Fellows, Mike; Heggernes, Pinar; Rosamond, Frances; Sloper, Christian; Telle, Jan Arne (Journal article; Peer reviewed, 2004)
      We consider the NP-complete problem of deciding whether an input graph on n vertices has k vertex-disjoint copies of a fixed graph H. For H=K 3 (the triangle) we give an O(22klog k + 1.869k n 2) algorithm, and for general ...