Browsing Faculty of Mathematics and Natural Sciences by Title

Now showing items 7269-7288 of 9863

    • Quantitative microbial ecology off the northern Antarctic Peninsula. Antarctic microbial ecology 

      Hewes, Christopher D. (Doctoral thesis, 2010-06-22)
      The waters surrounding the South Shetland Islands, Antarctica, comprise a coastal/oceanic ecosystem that is iron-fertilized naturally from shelf sources of Weddell Sea origin. My thesis incorporates data from an 18-year ...

    • Quantitative molecular detection of larval Atlantic herring (Clupea harengus) in stomach contents of Atlantic mackerel (Scomber scombrus) marks regions of predation pressure 

      Allen, Bridie; Ray, Jessica Louise; Tiedemann, Maik; Komyakova, Valeriya; Vikebø, Frode Bendiksen; Skaar, Katrine Sandnes; Stiasny, Martina H.; Folkvord, Arild; Nash, Richard David Marriott; Stenevik, Erling Kåre; Kjesbu, Olav Sigurd (Journal article; Peer reviewed, 2021)
      Mortality rates in the early life-history stages of fishes are generally high yet identifying the causes remain unclear. Faltering recruitment rates of Atlantic herring (Clupea harengus) in the Norwegian Sea indicate a ...

    • Quantitative multiproxy assessment of long-term patterns of Holocene environmental change from a small lake near Abisko, northern Sweden 

      Bigler, Christian; Larocque, Isabelle; Peglar, Sylvia M.; Birks, Harry John Betteley; Hall, Roland I. (Peer reviewed; Journal article, 2002)
      Quantitative reconstructions are made of Holocene changes in climatic and environmental conditions from analyses of pollen, chironomids and diatoms in identical stratigraphic levels of a sediment core from Vuoskkujávri ...

    • Quantitative NMR analysis of the aqueous phase from hydrothermal liquefaction of lignin 

      Halleraker, Hilde Vik; Barth, Tanja (Journal article; Peer reviewed, 2020-08-06)
      Hydrothermal liquefaction (HTL) of biomass such as lignin could contribute to finding replacements for petroleum, both as a fuel and production of chemicals. The organic phase produced in formic acid assisted HTL of lignin ...

    • Quantitative Pore-Scale Analysis of CO2 Foam for CCUS 

      Benali, Benyamine (Master thesis, 2019-12)
      This experimental thesis is a part of ongoing projects lead by the Reservoir Physics group at the Department of Physics and Technology, University of Bergen. The main objectives of this thesis were to develop image analysis ...

    • Quantitative proteomics analysis of zebrafish exposed to sub-lethal dosages of β-methyl-amino-L-alanine (BMAA) 

      Frøyset, Ann Kristin; Khan, Essa Ahsan; Fladmark, Kari Espolin (Peer reviewed; Journal article, 2016-07-12)
      The non-protein amino acid β-methylamino-L-alanine (BMAA) is a neurotoxin present in microalgae and shown to accumulate in the food web. BMAA has been linked to the complex neurodegenerative disorder of Guam and to increased ...

    • Quantitative reconstruction of precipitation changes on the NE Tibetan Plateau since the Last Glacial Maximum - extending the concept of pollen source area to pollen-based climate reconstructions from large lakes 

      Wang, Yongbo; Herzschuh, Ulrike; Shumilovskikh, Lyudmila S.; Mischke, Steffen; Birks, Harry John Betteley; Wischnewski, Juliane; Böhner, Jürgen; Schlutz, Frank; Lehmkuhl, Frank; Diekmann, Bernhard; Wünnemann, Bernd; Zhang, Chengjun (Peer reviewed; Journal article, 2014-01-08)
      Pollen records from large lakes have been used for quantitative palaeoclimate reconstruction, but the influences that lake size (as a result of species-specific variations in pollen dispersal patterns that smaller pollen ...

    • Quantitative seismic interpretation in thin-bedded geology using full-wavefield elastic modelling 

      Tschache, Saskia (Doctoral thesis, 2023-09-28)
      Refleksjonsseismikk brukes til å lage seismiske «bilder» av den øverste delen av jordskorpen, blant annet med tanke på leting etter reservoarer for olje, gass, karbonlagring og geotermisk energi. I tillegg til å gi grunnlag ...

    • Quantitative transcriptomics, and lipidomics in evaluating ovarian developmental effects in Atlantic cod (Gadus morhua) caged at a capped marine waste disposal site 

      Khan, Essa Ahsan; Zhang, Xiaokang; Hanna, Eileen Marie; Bartosova, Zdenka; Yadetie, Fekadu; Jonassen, Inge; Goksøyr, Anders; Arukwe, Augustine (Journal article; Peer reviewed, 2020)
      In the present study, a previously capped waste disposal site at Kollevåg (Norway) was selected to study the effects of contaminant leakage on biomarkers associated with Atlantic cod (Gadus morhua) reproductive endocrinology ...

    • Quantum Computing, how it is jeopardizing RSA, and Post-Quantum Cryptography 

      Fossen-Helle, Anna (Master thesis, 2020-12-19)
      Quantum computers are a fact and with the quantum computers follows quantum algorithms. How will quantum computing affect how we look at public-key cryptography? And more specifically: how will it affect the most widely ...

    • Quantum control and characterization of ultrafast ionization with orthogonal two-color laser pulses 

      Agueny, Hicham (Peer reviewed; Journal article, 2020-01-14)
      We study ultrafast ionization dynamics using orthogonally polarized two-color (OTC) laser pulses involving the resonant “first plus second” (ω + 2ω) scheme. The scheme is illustrated by numerical simulations of the ...

    • Quantum Control of Rydberg Atoms 

      Eliasson, Sondre Hilmar Hopen (Master thesis, 2014-06-02)
      In 2007 the AEGIS experiment was started at CERN with the goal to determine the gravitational acceleration of the antihydrogen atom. This is achieved through accelerating the antihydrogen atoms toward a detector and measure ...

    • Quantum social networks 

      Cabello, Adán; Danielsen, Lars Eirik; López-Tarrida, Antonio J.; Portillo, José R. (Peer reviewed; Journal article, 2012-06-27)
      We introduce a physical approach to social networks (SNs) in which each actor is characterized by a yes–no test on a physical system. This allows us to consider SNs beyond those originated by interactions based on pre-existing ...

    • Quark self-energy and condensates in NJL model with external magnetic field 

      Liu, Juan; Du, Yi-lun; Shi, Song (Journal article; Peer reviewed, 2021)
      In a one-flavor NJL model with a finite temperature, chemical potential, and external magnetic field, the self-energy of the quark propagator contains more condensates besides the vacuum condensate. We use Fierz identity ...

    • Quarkonia as probes of the QGP and of the initial stages of the heavy-ion collision with ALICE 

      Lofnes, Ingrid Mckibben (Journal article; Peer reviewed, 2022)
      Studies of quarkonium production in heavy-ion collisions can be used for probing QGP properties. The suppression and regeneration of bound quarkonium states is sensitive to the medium properties. Modifications of the ...

    • Quarkonium measurements in nucleus–nucleus collisions with ALICE 

      Dillenseger, Pascal; Acharya, Shreyasi; Acosta, Fernando T.; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Neelima; Ahammed, Zubayer; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Ersdal, Magnus Rentsch; Fionda, Fiorella Maria Celeste; Nystrand, Joakim; Rehman, Attiq Ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Wagner, Boris; Zhou, Zhuo; Arsene, Ionut Cristian; Bätzing, Paul Christoph; Dordic, Olja; Lardeux, Antoine Xavier; Lindal, Svein; Mahmood, Sohail Musa; Malik, Qasim Waheed; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Helstrup, Håvard; Langøy, Rune; Lien, Jørgen André; Ahn, Sang Un; Aiola, Salvatore; Akindinov, Alexander; Al-Turany, Mohammad; Alam, Sk Noor; Albuquerque, D. S. D.; Aleksandrov, Dmitry; Alessandro, Bruno; ALICE, Collaboration (Peer reviewed; Journal article, 2019)
      Quarkonia, i.e. bound states of bb¯ and cc¯ quarks, are powerful observables to study the properties of nuclear matter under extreme conditions. The formation of a Quark-Gluon Plasma (QGP), which is predicted by lattice ...

    • Quarkonium production in p-Pb collisions with ALICE 

      Paul, Biswarup; Acharya, Shreyasi; Acosta, Fernando T.; Adamová, Dagmar; Adolfsson, Jonatan; Aggarwal, Madan M.; Aglieri Rinella, Gianluca; Agnello, Michelangelo; Agrawal, Neelima; Ahammed, Zubayer; Alme, Johan; Altenkaemper, Lucas; Djuvsland, Øystein; Ersdal, Magnus Rentsch; Fionda, Fiorella Maria Celeste; Nystrand, Joakim; Rehman, Attiq Ur; Røhrich, Dieter; Tambave, Ganesh Jagannath; Ullaland, Kjetil; Wagner, Boris; Zhou, Zhuo; Arsene, Ionut Cristian; Bätzing, Paul Christoph; Dordic, Olja; Lardeux, Antoine Xavier; Lindal, Svein; Mahmood, Sohail Musa; Malik, Qasim Waheed; Richter, Matthias; Røed, Ketil; Skaali, Toralf Bernhard; Tveter, Trine Spedstad; Wikne, Jon Christopher; Zhao, Chengxin; Hetland, Kristin Fanebust; Kileng, Bjarte; Nesbø, Simon Voigt; Storetvedt, Maksim Melnik; Helstrup, Håvard; Langøy, Rune; Lien, Jørgen André; Ahn, Sang Un; Aiola, Salvatore; Akindinov, Alexander; Al-Turany, Mohammad; Alam, Sk Noor; Albuquerque, D. S. D.; Aleksandrov, Dmitry; Alessandro, Bruno; ALICE, Collaboration (Peer reviewed; Journal article, 2019)
      ALICE has measured quarkonium production in p-Pb collisions at backward (−4.46 < ycms < −2.96), mid (−1.37 < ycms < 0.43) and forward (2.03 < ycms < 3.53) rapidity (y) regions down to zero transverse momentum (pT). The ...

    • Quarks and gluons in the Lund plane 

      Dreyer, Frédéric A.; Soyez, Gregory; Takacs, Adam (Journal article; Peer reviewed, 2022)
      Discriminating quark and gluon jets is a long-standing topic in collider phenomenology. In this paper, we address this question using the Lund jet plane substructure technique introduced in recent years. We present two ...

    • Quarkyonic matter from hydro and rapid freeze out 

      Csernai, László Pál; Cheng, Yun; Horvát, S.; Magas, V. K.; Mishustin, I. N.; Molnár, E.; Strottman, D.; Zétényi, M. (Peer reviewed; Journal article, 2009)
      Quarkyonic matter is a predicted phase between deconfined ideal QGP and Hadronic matter where the dominant degrees of freedom are quarks. Collective flow measurements indicate that the flow developed in QGP, as flow ...

    • Quartz overgrowth textures and fluid inclusion thermometry evidence for basin-scale sedimentary recycling: An example from the Mesozoic Barents Sea Basin 

      Haile, Beyene Girma; Line, Lina Hedvig; Klausen, Tore Grane; Olaussen, Snorre; Eide, Christian Haug; Jahren, Jens; Hellevang, Helge (Journal article; Peer reviewed, 2020)
      Sedimentary recycling has the potential to obscure source-to-sink relationships, provenance interpretations, burial history reconstructions and robust reservoir quality predictions in siliciclastic sedimentary basins. Here, ...