Viser treff 3746-3765 av 4753

    • Scalable exploration of population-scale drug consumption data 

      Skar, Tengel Ekrem (Master thesis; Mastergradsoppgave, 2019-06-01)
      The potential for knowledge discovery is currently underutilized on pharmacoepidemiologic data sets. A big dataset enables finding and assessing rare drug consumption patterns that are associated with adverse drug reactions causing hospitalization, or death. To enable such exploration of big pharmacoepidemiology data, four key issues need so be addressed. First, to ingest, transform, preprocess ...
    • A scalable, interactive widget library for visualizing biological data 

      Johansen, Terje Andre (Master thesis; Mastergradsoppgave, 2011-06)
      In biology the introduction next generation technology is increasing the amount of data generated rapidly. New sequencing machines are able to produce terabytes of genomic data in days and in later years the cost of storing data has become higher than to produce it. With enormous amounts of data arrives great opportunities, but also new challenges; how should biologists analyze and interpret the ...
    • Scalable-resolution structured illumination microscopy 

      Butola, Ankit; Acuna Maldonado, Sebastian Andres; Hansen, Daniel Henry; Agarwal, Krishna (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-11-15)
      Structured illumination microscopy suffers from the need of sophisticated instrumentation and precise calibration. This makes structured illumination microscopes costly and skill-dependent. We present a novel approach to realize super-resolution structured illumination microscopy using an alignment non-critical illumination system and a reconstruction algorithm that does not need illumination ...
    • Scalar Relativistic Effects with Multiwavelets: Implementation and Benchmark 

      Brakestad, Anders; Jensen, Stig Rune; Tantardini, Christian; Pitteloud, Quentin Gregoire; Wind, Peter Ariaan; Užulis, Jānis; Gulans, Andris; Hopmann, Kathrin Helen; Frediani, Luca (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-05)
      The importance of relativistic effects in quantum chemistry is widely recognized, not only for heavier elements but throughout the periodic table. At the same time, relativistic effects are strongest in the nuclear region, where the description of electrons through a linear combination of atomic orbitals becomes more challenging. Furthermore, the choice of basis sets for heavier elements is ...
    • Scale Space Methods for Analysis of Type 2 Diabetes Patients' Blood Glucose Values 

      Skrøvseth, Stein Olav; Godtliebsen, Fred (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      We describe how scale space methods can be used for quantitative analysis of blood glucose concentrations from type 2 diabetes patients. Blood glucose values were recorded voluntarily by the patients over one full year as part of a self-management process, where the timeand frequency of the recordings are decided by the patients. This makes a unique datasetin its extent, though with a large variation ...
    • Scale-free vortex cascade emerging from random forcing in a strongly coupled system 

      Rypdal, Kristoffer; Ratynskaia, Svetlana; Kozelov, Boris; Klumov, Boris; Knapek, Christina (Working paper; Arbeidsnotat, 2008-03-04)
      The notions of self-organised criticality (SOC) and turbulence are traditionally considered to be applicable to disjoint classes of phenomena. Nevertheless, scale-free burst statistics is a feature shared by turbulent as well as self-organised critical dynamics. It has also been suggested that another shared feature is universal non-gaussian probability density functions (PDFs) of global fluctuations. ...
    • Scale-space methodology applied to spectral feature detection, multinormality testing and the k-sample problem, and wavelet variance analysis 

      Hindberg, Kristian (Doctoral thesis; Doktorgradsavhandling, 2012-03-23)
      The number of scale-space statistical algorithms has been greatly increased over the last 15 years. The concept originated from computer vision, introduced in Lindeberg (1994). The seminal paper by Chaudhuri and Marron (1999) brought the scale-space concept into smoothing of curves and kernel density estimation through the SiZer tool. By using all relevant smoothing bandwidths, i.e., the scale part, ...
    • Scales of tectonic processes controlling fluid flow systems on the Svyatogor Ridge, Fram Strait 

      Waghorn, Kate Alyse (Doctoral thesis; Doktorgradsavhandling, 2019-06-13)
      The Svyatogor Ridge, located in the Fram strait, is a site hosting a fluid flow system. The Svyatogor Ridge is part of the inside corner high at the Knipovich Ridge-Molloy Transform fault intersection. The Knipovich Ridge is an ultra-slow, melt-poor spreading ridge with approximately 8 mm/yr spreading rate. At this northernmost segment of the Knipovich Ridge, spreading is predominantly accommodated ...
    • Scaling of global temperatures explained by linear energy balance models 

      Rypdal, Kristoffer; Fredriksen, Hege-Beate (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12)
      <i>Introduction</i>: Scale invariance of natural variability of global surface temperatures is often interpreted as a signature of nonlinear dynamics. However, the observed scaling can be adequately explained by linear energy balance involving subsystems with different response times.
    • Scanning acoustic microscopy—A novel noninvasive method to determine tumor interstitial fluid pressure in a xenograft tumor model 

      Hofmann, Matthias; Pflanzer, Ralph; Habib, Anowarul; Shelke, Amit; Bereiter-Hahn, Jürgen; Bernd, August; Kaufmann, Roland; Sader, Robert; Kippenberger, Stefan (Journal article; Tidsskriftartikkel; Peer reviewed, 2016-04-22)
      Elevated tumor interstitial fluid pressure (TIFP) is a prominent feature of solid tumors and hampers the transmigration of therapeutic macromolecules, for example, large monoclonal antibodies, from tumor-supplying vessels into the tumor interstitium. TIFP values of up to 40 mm Hg have been measured in experimental solid tumors using two conventional invasive techniques: the wick-in-needle and the ...
    • A Scatter-Based Prototype Framework and Multi-Class Extension of Support Vector Machines 

      Jenssen, Robert; Kloft, Marius; Zien, Alexander; Sonnenburg, Soeren; Müller, Klaus R. (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      We provide a novel interpretation of the dual of support vector machines (SVMs) in terms of scatter with respect to class prototypes and their mean. As a key contribution, we extend this framework to multiple classes, providing a new joint Scatter SVM algorithm, at the level of its binary counterpart in the number of optimization variables. This enables us to implement computationally efficient ...
    • Scenario Design, Data Measurement, and Analysis Approaches in Maritime Simulator Training: A Systematic Review 

      Munim, Ziaul Haque; Krabbel, Helene Luise Sonna; Haavardtun, Per; Kim, Tae Eun; Bustgaard, Morten; Thorvaldsen, Haakon (Chapter; Bokkapittel, 2023-08-29)
      Developing objective assessment approach in maritime simulator training can be a highly challenging task due to the complexity of simulating realistic scenarios, capturing relevant performance indicators and establishing good assessment protocols. This study provides a synthesis of simulation scenario contexts, data collection tools, and data analysis approaches in published simulator training ...
    • Scenario-based modelling of the potential for solar energy charging of electric vehicles in two Scandinavian cities 

      Good, Clara; Shepero, Mahmoud; Munkhammar, Joakim; Boström, Tobias (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-11-19)
      In order to contribute to the reduction of greenhouse gas emissions, electric vehicles (EVs) should be charged using electricity from renewable energy sources. This paper describes a study of photovoltaics (PV) utilization for EV charging in two Scandinavian cities: Tromsø in Norway and Uppsala in Sweden, with the objective to evaluate self-sufficiency and self-consumption. The suitable areas ...
    • Schema crawled API documentation exploration 

      Bakkeli, Nicolai (Master thesis; Mastergradsoppgave, 2017-12-15)
      Åpne API blir stadig mer utbredt som fører til at utviklere kan benytte mye tid i å lese dokumentasjon for å finne et passende alternativ. Tesen beskriver en design som kan benyttes for å danne et sett med hjelpemidler som har til hensikt å redusere unødvendige alternativ av API for brukeren. Dette gjøres via en web crawler som går gjennom API dokumentasjon samt en behandler av datamengdene som ...
    • The science case for the EISCAT_3D radar 

      McCrea, Ian W.; Aikio, Anita; Alfonsi, Lucilla; Belova, Evgenia; Buchert, Stephan C.; Clilverd, Mark; Engler, Norbert; Gustavsson, Björn Johan; Heinselman, C.; Kero, Johan; Kosch, Mike; Lamy, Herve; Leyser, Thomas; Ogawa, Yasunobu; Oksavik, Kjellmar; Pellinen-Wannberg, Asta; Pitout, Frederic; Rapp, Markus; Stanislawska, Iwona; Vierinen, Juha (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-07-29)
      The EISCAT (European Incoherent SCATer) Scientific Association has provided versatile incoherent scatter (IS) radar facilities on the mainland of northern Scandinavia (the EISCAT UHF and VHF radar systems) and on Svalbard (the electronically scanning radar ESR (EISCAT Svalbard Radar) for studies of the high-latitude ionised upper atmosphere (the ionosphere). The mainland radars were constructed ...
    • Science goals for a high-frequency radar and radio imaging array 

      Isham, Brett Cameron; Bullett, Terence; Gustavsson, Björn Johan; Polisensky, Emil; Brum, Christiano; Fallen, Christopher; Belyey, Vasyl; Parra-Rojas, Francisco; Norouzi, Leila; Stramkals, Arturs; Ökten, Mehmet Baran (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-01)
      A medium and high-frequency antenna array for radar and radio imaging of the ionosphere is planned for installation in Aguadilla, Puerto Rico. Science goals include the study of space weather, radio propagation, meteors, lightning, and plasma physics. Radio imaging is ideal for the study of stimulated ionospheric radio emissions, such as those induced by the Arecibo Observatory high-power HF radio ...
    • The Science of Sungrazers, Sunskirters, and Other Near-Sun Comets 

      Jones, Geraint; Knight, Matthew; Battams, Karl; Boice, Daniel; Brown, John; Giordano, Silvio; Raymond, John; Snodgrass, Colin; Steckloff, Jordan; Weissman, Paul; Fitzsimmons, Alan; Lisse, Carey M; Opitom, Cyrielle; Birkett, Kimberley; Bzowski, Maciej; Decock, Alice; Mann, Ingrid; Ramanjooloo, Yudish; McCauley, Patrick (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-12-18)
      This review addresses our current understanding of comets that venture close to the Sun, and are hence exposed to much more extreme conditions than comets that are typically studied from Earth. The extreme solar heating and plasma environments that these objects encounter change many aspects of their behaviour, thus yielding valuable information on both the comets themselves that complements other ...
    • Scientific literacy for fremtidens borgere. I hvor stor grad har norske elever oppnådd scientific literacy etter 11 års naturfagundervisning? 

      Olaisen, Sandra (Master thesis; Mastergradsoppgave, 2016-05-30)
      Hensikten med dette masterprosjektet var å undersøke i hvor stor grad norske elever har oppnådd scientific literacy gjennom naturfag, ut i fra en hypotese om at naturfaglæreplanen ikke tilrettelegger i stor nok grad for utvikling av ansvarlige borgere. Dette ble gjort ved å undersøke elevers evner til å bruke informert avgjørelsestaking, argumentasjon og kildekritikk for å finne potensielle løsninger ...
    • A scientometrics view on sustainable development in surface mining: Everything from the beginning 

      Nouri Qarahassanlou, Ali (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-03-11)
      In summary, the study on sustainable development in the late 20th century aimed to balance economic, social, and environmental factors in open-pit mining. The study found that while mining has negative ecological impacts, it also has positive economic and social benefits. The study analyzed 77 articles and found a growing trend in scientific interest in sustainable development research from 1985 to ...
    • ScopeSense: An 8.5-Month Sport, Nutrition, and Lifestyle Lifelogging Dataset 

      Riegler, Michael Alexander; Thambawita, Vajira; Chatterjee, Ayan; Nguyen, Thu; Hicks, Steven; Telle-Hansen, Vibeke; Pettersen, Svein Arne; Johansen, Dag; Jain, Ramesh; Halvorsen, Pål (Chapter; Bokkapittel, 2023-03-29)
      Nowadays, most people have a smartphone that can track their everyday activities. Furthermore, a significant number of people wear advanced smartwatches to track several vital biomarkers in addition to activity data. However, it is still unclear how these data can actually be used to improve certain aspects of people’s lives. One of the key challenges is that the collected data is often massive and ...