Blar i Faculty of Mathematics and Natural Sciences på tittel
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Unaccounted mortality in purse seine fisheries. Quantification and mitigation of slipping mortality
(Doctoral thesis, 2014-06-06)Purse seining is an efficient fishing method that is used to catch most of the world’s pelagic fish species. In some of these fisheries slipping is used to adjust catch size, increase catch value or to release illegal ... -
UncertainData.jl: a Julia package for working with measurements and datasets with uncertainties
(Journal article; Peer reviewed, 2019-11-01)UncertainData.jl provides an interface to represent data with associated uncertainties for the Julia programming language (Bezanson, Edelman, Karpinski, & Shah, 2017). Unlike Measurements.jl (Giordano, 2016), which deals ... -
Uncertainties in Arctic sea ice thickness and volume: new estimates and implications for trends
(Peer reviewed; Journal article, 2014-04-22)Sea ice volume has decreased in the last decades, evoked by changes in sea ice area and thickness. Estimates of sea ice area and thickness rely on a number of geophysical parameters which introduce large uncertainties. To ... -
Uncertainty and ignored information in the analysis of bat ultrasound: Bayesian approximation to the rescue
(Journal article; Peer reviewed, 2022)Bat ultrasound analysis has been around for several decades and it is one of the most important tools in studies of bat ecology. Discrimination between species is based on intra-specific features of echolocation calls. ... -
Uncertainty estimation in sound scattering measurements within an anechoic chamber
(Master thesis, 2022-01-07)Uncertainty was estimated for seven variable changes in sound scattering measurements in an anechoic chamber to explore their impact individually and compared to each other. These variables were change of loudspeaker, ... -
Uncertainty in twenty-first century projections of the Atlantic Meridional Overturning Circulation in CMIP3 and CMIP5 models
(Peer reviewed; Journal article, 2016-05-26)Uncertainty in the strength of the Atlantic Meridional Overturning Circulation (AMOC) is analyzed in the Coupled Model Intercomparison Project Phase 3 (CMIP3) and Phase 5 (CMIP5) projections for the twenty-first century; ... -
Uncertainty-aware spot rejection rate as quality metric for proton therapy using a digital tracking calorimeter
(Journal article; Peer reviewed, 2023)Objective. Proton therapy is highly sensitive to range uncertainties due to the nature of the dose deposition of charged particles. To ensure treatment quality, range verification methods can be used to verify that the ... -
Unclear associations between small pelagic fish and jellyfish in several major marine ecosystems
(Peer reviewed; Journal article, 2019-02-28)During the last 20 years, a series of studies has suggested trends of increasing jellyfish (Cnidaria and Ctenophora) biomass in several major ecosystems worldwide. Some of these systems have been heavily fished, causing a ... -
Unconditionally stable Methods for Hamilton-Jacobi Equations
(Department of Applied Mathematics report, Research report, 2000-05) -
Uncovering Amino Acids Patterns At The Membrane-Binding Interfaces Of Peripheral Proteins
(Master thesis, 2020-07-04) -
Under-Ice Phytoplankton Blooms in the Central Arctic Ocean: Insights From the First Biogeochemical IAOOS Platform Drift in 2017
(Journal article; Peer reviewed, 2020)In April 2017, the first Ice Atmosphere Arctic Ocean Observing System (IAOOS) platform equipped with biogeochemical sensors was deployed near the North Pole. Over the next 8 months it meandered southward with the ice, ... -
Underlying event properties in pp collisions at √s = 13 TeV
(Journal article; Peer reviewed, 2020)This article reports measurements characterizing the Underlying Event (UE) associated with hard scatterings at midrapidity (|η| < 0.8) in pp collisions at √s = 13 TeV. The hard scatterings are identified by the leading ... -
Understanding climate change impacts on biome and plant distributions in the Andes: Challenges and opportunities
(Journal article; Peer reviewed, 2022)Aim: Climate change is expected to impact mountain biodiversity by shifting species ranges and the biomes they shape. The extent and regional variation in these impacts are still poorly understood, particularly in the ... -
Understanding differences in North Atlantic poleward ocean heat transport and its variability in global climate models
(Journal article; Peer reviewed, 2021)The ocean heat transport from the North Atlantic to the Barents Sea impacts the sea ice extent and the energy budget of the Arctic. The analyzed climate models from the fifth (CMIP5) and sixth Coupled Model Intercomparison ... -
Understanding learner behaviour in online courses with Bayesian modelling and time series characterisation
(Journal article; Peer reviewed, 2021)The intrinsic temporality of learning demands the adoption of methodologies capable of exploiting time-series information. In this study we leverage the sequence data framework and show how data-driven analysis of temporal ... -
Understanding of European Cold Extremes, Sudden Stratospheric Warming, and Siberian Snow Accumulation in the Winter of 2017/18
(Peer reviewed; Journal article, 2020)It is unclear whether the Eurasian snow plays a role in the tropospheric driving of sudden stratospheric warming (SSW). The major SSW event of February 2018 is analyzed using reanalysis datasets. Characterized by predominant ... -
Understanding the correlation between (g − 2) μ and μ → eγ in the MSSM
(Peer reviewed; Journal article, 2014-08)The supersymmetric contributions to the muon anomalous magnetic moment a μ and to the decay μ → eγ are given by very similar Feynman diagrams. Previous works reported correlations in specific scenarios, in particular if a ... -
Understanding the dynamics of recent Norwegian extreme weather events and their influence on energy production
(Master thesis, 2021-08-05)The growing frequency and severity of extreme weather events in the Northern Hemisphere has prompted a lot of research being done on their origin and physical mechanisms. Both simplified and complex approaches have been ... -
Understanding the occurrence and fate of microplastics in coastal Arctic ecosystems: The case of surface waters, sediments and walrus (Odobenus rosmarus)
(Journal article; Peer reviewed, 2021)The Arctic ecosystem receives contaminants transported through complex environmental pathways – such as atmospheric, riverine and oceanographic transport, as well as local infrastructure. A holistic approach is required ...