Now showing items 57-76 of 2157

  • An approximate hybrid method for modeling of electromagnetic scattering from an underground target 

    Bakr, Shaaban Ali (The University of Bergen, 2010-12-09)
    The detection of a potential petroleum reservoir is achieved through inversion of electromagnetic data acquired in sea floor receivers. Inversion of electromagnetic data requires a number of repeated solves of the ...
    Doctoral thesis
  • Aquaporin evolution in fishes 

    Finn, Roderick Nigel; Cerdà, Joan (Frontiers Research Foundation, 2011-07-26)
    Aquaporins represent a primordial group of transmembrane solvent channels that have been documented throughout the living biota. This facet alone emphasizes the positive selection pressure for proteins associated with ...
    Peer reviewedJournal article
  • Arachnoid cysts do not contain cerebrospinal fluid: A comparative chemical analysis of arachnoid cyst fluid and cerebrospinal fluid in adults 

    Berle, Magnus; Wester, Knut; Ulvik, Rune Johan; Kroksveen, Ann Cathrine; Haaland, Øystein; Amiry-Moghaddam, Mahmood; Berven, Frode S. (BioMed Central, 2010-06-10)
    Background Arachnoid cyst (AC) fluid has not previously been compared with cerebrospinal fluid (CSF) from the same patient. ACs are commonly referred to as containing "CSF-like fluid". The objective of this study was to ...
    Journal articlePeer reviewed
  • Arctic Holocene proxy climate database – New approaches to assessing geochronological accuracy and encoding climate variables 

    Sundqvist, H.S.; Kaufmann, Darrell; MaKay, Nickholas; Axford, Y.; Balascio, Nickholas; Briner, Jason P.; Cwynar, L.C.; Sejrup, Hans Petter; Subetto, D.A.; Andrews, J.T.; Bakke, Jostein; Birks, Harry John Betteley; Brooks, S.J.; Vernal, A.E.; Jennings, A.E.; Ljungvist, K.M.; Rûhland, K.M.; Saenger, C.; Smol, J.P.; Viau, A.E. (Copernicus Publications, 2014-08-29)
    We present a systematic compilation of previously published Holocene proxy climate records from the Arctic. We identified 170 sites from north of 58° N latitude where proxy time series extend back at least to 6 cal ka (all ...
    Journal article
  • Arctic Ocean carbon biogeochemistry under climate change and ocean acidification 

    Silyakova, Anna (The University of Bergen, 2013-05-10)
    Human-induced CO2 emissions to the atmosphere cause climate change and ocean acidification. The strongest indicators of climate change and ocean acidification are expected to be found in the Arctic Ocean (AO). The AO ...
    Doctoral thesis
  • Arctic sea ice altimetry - advances and current uncertainties 

    Zygmuntowska, Marta (The University of Bergen, 2014-06-11)
    One of the most prominent features of global climate change is the reduction in Arctic sea ice thickness. The main tool to derive sea ice thickness on an Arctic wide scale is altimetry from satellites, yet current estimates ...
    Doctoral thesis
  • Arctic sea ice and Eurasian climate: A review 

    Gao, Yongqi; Sun, Jianqi; Li, Fei; He, Shengping; Sandven, Stein; Yan, Qing; Zhang, Zhongshi; Lohmann, Katja; Keenlyside, Noel; Furevik, Tore; Suo, Lingling (Science Press, 2014-11-28)
    The Arctic plays a fundamental role in the climate system and has shown significant climate change in recent decades, including the Arctic warming and decline of Arctic sea-ice extent and thickness. In contrast to the ...
    Journal article
  • The Arctic Summer Cloud Ocean Study (ASCOS): Overview and experimental design 

    Tjernström, Michael; Leck, Caroline; Birch, Cathryn E.; Bottenheim, Jan W.; Brooks, Barbara J.; Brooks, Ian M.; Bäcklin, Leif; Chang, Rachel; de Leeuw, Gerrit; Di Liberto, Luca; De La Rosa, Sara; Granath, Eva; Graus, Martin; Hänsel, Armin; Heintzenberg, Jost; Held, Andreas; Hind, Andrew; Johnston, Paul; Knulst, Johan C.; Martin, Maria; Matrai, Patricia A.; Mauritsen, Thorsten; Müller, Markus; Norris, Sarah J.; Orellana, Mónica V.; Orsini, Douglas A.; Paatero, Jussi; Persson, P. Ola G.; Gao, Qiuju; Rauschenberg, Carlton; Ristovski, Zoran; Sedlař, Joseph; Shupe, Matthew D.; Sierau, Berko; Sirevaag, Anders; Sjögren, Staffan; Stetzer, Olaf; Swietlicki, Erik; Szczodrak, Malgorzata; Vaattovaara, Petri; Wahlberg, Nils; Westberg, Maria; Wheeler, Cassie R. (Copernicus Publications, 2014-03-19)
    The climate in the Arctic is changing faster than anywhere else on earth. Poorly understood feedback processes relating to Arctic clouds and aerosol–cloud interactions contribute to a poor understanding of the present ...
    Journal article
  • Arctic/Atlantic exchanges via the Subpolar Gyre 

    Langehaug, Helene Reinertsen; Medhaug, Iselin; Eldevik, Tor; Otterå, Odd Helge (American Meteorological Society, 2012)
    In the present study we investigate the decadal variability in the strength and shape of the Subpolar Gyre (SPG) in a 600-year pre-industrial simulation using the Bergen Climate Model. The atmospheric influence on the ...
    Journal article
  • Argo Profiling Floats in the Nordic Seas: Deep-water circulation, hydrography and comparisons to the TOPAZ model 

    Bjordal, Katrine Dale (The University of Bergen, 2006-05)
    Master thesis
  • Artssuksesjon av planteplankton i Raunefjorden våren 2010. Reguleringsmekanismer og elementsammensetning ved røntgenfluorescens 

    Haugen, Stig Bjarte (The University of Bergen, 2011-10-03)
    Denne studien av artssuksesjon og reguleringsmekanismer er satt sammen av to deler. Den ene delen består av et tokt til Svinøysnittet, mens den andre er en serie av prøvetakinger og målinger i Raunefjorden i Hordaland. ...
    Master thesis
  • Aspects on interactions between mid- to high latitude atmospheric circulation and some surface processes 

    Byrkjedal, Øyvind (The University of Bergen, 2006-06-08)
    The Arctic is a hot topic in Climate Research. A large number of signs of a warming Arctic Climate have been identified the latest years. This is of major concern in light of the increasing atmospheric content of greenhouse ...
    Doctoral thesis
  • Assessing and comparing climatic control on distribution and reproduction of alpine and lowland species in the subalpine habitat of western Norway. 

    Meineri, Eric (The University of Bergen, 2012-02-06)
    Aims and background: Species range shift is among the most well-documented responses to climate change. As a result, a growing number of studies model species climatic niches to predict how species ranges may displace ...
    Doctoral thesis
  • Assessing and Mitigating Risks in Computer Systems 

    Netland, Lars-Helge (The University of Bergen, 2008-09-26)
    When it comes to non-trivial networked computer systems, bulletproof security is very hard to achieve. Over a system's lifetime new security risks are likely to emerge from e.g. newly discovered classes of vulnerabilities ...
    Doctoral thesis
  • Assessing Model Uncertainties Through Proper Experimental Design 

    Hvidevold, Hilde Kristine; Alendal, Guttorm; Johannessen, Truls; Mannseth, Trond (Elsevier, 2013)
    This paper assesses how parameter uncertainties in the model for rise velocity of CO2 droplets in the ocean cause uncertainties in their rise and dissolution in marine waters. The parameter uncertainties in the rise velocity ...
    Journal article
  • Assessment of Sequential and Simultaneous Ensemble-based History Matching Methods for Weakly Non-linear Problems 

    Fossum, Kristian (The University of Bergen, 2015-02-13)
    The ensemble Kalman filter (EnKF) has, since its introduction in 1994, gained much attention as a tool for sequential data assimilation in many scientific areas. In recent years, the EnKF has been utilized for estimating ...
    Doctoral thesis
  • Assessment of the biodegradability of xanthan in offshore injection water 

    Hovland, Beate (The University of Bergen, 2015-04-29)
    The application of biopolymers in EOR operations is considered environmental friendly compared to synthetic polymers. However, microbial degradation of the biopolymers may lead to a deterioration of effect in ...
    Master thesis
  • Association between body height and chronic low back pain: a follow-up in the Nord-Trøndelag Health Study 

    Heuch, Ingrid; Heuch, Ivar; Hagen, Knut; Zwart, John-Anker (BMJ, 2015-06-15)
    Objective: To study potential associations between body height and subsequent occurrence of chronic low back pain (LBP). Design: Prospective cohort study. Setting: The North-Trøndelag Health Study (HUNT). Data ...
    Journal article
  • Atlantic salmon (Salmo salar L.) sterol metabolism and metabolic health – impact of dietary lipids 

    Liland, Nina Sylvia (The University of Bergen, 2014-12-12)
    Marine resources are today limited, and due to this there is an increasing inclusion of non-marine lipids in the diet of farmed salmonids. An optimal diet for farmed Atlantic salmon (Salmo salar L.) should not only promote ...
    Doctoral thesis
  • ATLAS Detector Monitoring with Jets 

    Skjei, Kent Olav (The University of Bergen, 2009-10-02)
    The purpose of this thesis was to provide a high level software framework for detecting large problems with the ATLAS detector at the LHC and estimate the jet resolution from the f irst data. The result was the program ...
    Master thesis