Fakultet for naturvitenskap og teknologi: Recent submissions
Now showing items 361-380 of 4870
-
Biodiversity Impact Assessment Considering Land Use Intensities and Fragmentation
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-16)Land use is a major threat to terrestrial biodiversity. Life cycle assessment is a tool that can assess such threats and thereby support environmental decision-making. Within the Global Guidance for Life Cycle Impact Assessment (GLAM) project, the Life Cycle Initiative hosted by UN Environment aims to create a life cycle impact assessment method across multiple impact categories, including ... -
Planktonic foraminifers and shelled pteropods in the Barents Sea: Seasonal distribution and contribution to the carbon pump of the living fauna, and foraminiferal development during the last three millennia
(Doctoral thesis; Doktorgradsavhandling, 2023-12-06)The Arctic Ocean in general and the Barents Sea specifically, are highly affected by the human induced carbon dioxide (CO2) emissions and increasing temperatures. Atlantification, caused by an increase in warm Atlantic Water inflow, and polar amplification, caused by a higher impact of the increasing temperatures at high latitudes, have already been observed. Moreover, the Barents Sea has been ... -
Privacy Concerns Related to Data Sharing for European Diabetes Devices
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-13)Background: Individuals with diabetes rely on medical equipment (eg, continuous glucose monitoring (CGM), hybrid closed-loop systems) and mobile applications to manage their condition, providing valuable data to health care providers. Data sharing from this equipment is regulated via Terms of Service (ToS) and Privacy Policy documents. The introduction of the Medical Devices Regulation (MDR) and In ... -
The Detection and Attribution of Northern Hemisphere Land Surface Warming (1850–2018) in Terms of Human and Natural Factors: Challenges of Inadequate Data
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-28)A statistical analysis was applied to Northern Hemisphere land surface temperatures (1850–2018) to try to identify the main drivers of the observed warming since the mid-19th century. Two different temperature estimates were considered—a rural and urban blend (that matches almost exactly with most current estimates) and a rural-only estimate. The rural and urban blend indicates a long-term warming ... -
Insights into the role of three Endonuclease III enzymes for oxidative stress resistance in the extremely radiation resistant bacterium Deinococcus radiodurans
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-12)The extremely radiation and desiccation resistant bacterium Deinococcus radiodurans possesses three genes encoding Endonuclease III-like enzymes (DrEndoIII1, DrEndoIII2, DrEndoIII3). In vitro enzymatic activity measurements revealed that DrEndoIII2 is the main Endonuclease III in this organism, while DrEndoIII1 and 3 possess unusual and, so far, no detectable EndoIII activity, respectively. In ... -
Transfer Learning Based Fault Detection for Suspension System Using Vibrational Analysis and Radar Plots
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-26)The suspension system is of paramount importance in any automobile. Thanks to the suspension system, every journey benefits from pleasant rides, stable driving and precise handling. However, the suspension system is prone to faults that can significantly impact the driving quality of the vehicle. This makes it essential to find and diagnose any faults in the suspension system and rectify them ... -
A Modified LeNet CNN for Breast Cancer Diagnosis in Ultrasound Images
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-24)Convolutional neural networks (CNNs) have been extensively utilized in medical image processing to automatically extract meaningful features and classify various medical conditions, enabling faster and more accurate diagnoses. In this paper, LeNet, a classic CNN architecture, has been successfully applied to breast cancer data analysis. It demonstrates its ability to extract discriminative ... -
Integration of renewable energy and sustainable development with strategic planning in the mining industry
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-16)With an increase in the world population, the global demand for minerals is rising, increasing energy consumption. Due to the distance of mines from urban areas, the energy required for mining is highly dependent on fossil fuels. Using renewable energies is an effective solution to reducing this problem. This study examines the challenges and opportunities of integrating renewable energy into ... -
Demonstrating low Raman background in UV-written SiO2 waveguides
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-06)Raman spectroscopy can give a chemical ’fingerprint’ from both inorganic and organic samples, and has become a viable method of measuring the chemical composition of single biological particles. In parallel, integration of waveguides and microfluidics allows for the creation of miniaturized optical sensors in lab-on-a-chip devices. The prospect of combining integrated optics and Raman spectroscopy ... -
Role of transfer functions in PSO to select diagnostic attributes for chronic disease prediction: An experimental study
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-22)Particle Swarm Optimization (PSO) is a classic and popularly used meta-heuristic algorithm in many reallife optimization problems due to its less computational complexity and simplicity. The binary version of PSO, known as BPSO, is used to solve binary optimization problems, such as feature selection. Like other meta-heuristic optimization techniques designed on the continuous search space, PSO ... -
Generalized Teleparallel de Sitter geometries
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-30)Theories of gravity based on teleparallel geometries are characterized by the torsion, which is a function of the coframe, derivatives of the coframe, and a zero curvature and metric compatible spin-connection. The appropriate notion of a symmetry in a teleparallel geometry is that of an affine symmetry. Due to the importance of the de Sitter geometry and Einstein spaces within General Relativity, ... -
A Multi-pronged Self-adaptive Controller for Analyzing Misconfigurations for Kubernetes Clusters and IoT Edge Devices
(Conference object; Konferansebidrag, 2023-10-12)Kubernetes default configurations do not always provide optimal security and performance for all clusters and IoT edge devices deployed, making them vulnerable to security breaches and information leakage if misconfigured. Misconfiguration leads to a compromised system that disrupts the workload, allows access to system resources, and degrades the system’s performance. To provide optimal security ... -
Adaptive Controller to Identify Misconfigurations and Optimize the Performance of Kubernetes Clusters and IoT Edge Devices
(Conference object; Konferansebidrag, 2023-10-12)Kubernetes default configurations do not always provide optimal security and performance for all clusters and IoT edge devices deployed, affecting the scalability of a given workload and making them vulnerable to security breaches and information leakage if misconfigured. We present an adaptive controller to identify the type of misconfiguration and its consequence threat to optimize the system ... -
Diel and seasonal methane dynamics in the shallow and turbulent Wadden Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-25)The Wadden Sea is a coastal system along the fringe of the land–sea borders of Denmark, Germany and the Netherlands. The Wadden Sea is extremely productive and influenced by strong variations in physical and biological forcing factors that act on timescales of hours to seasons. Productive coastal seas are known to dominate the ocean's methane emission to the atmosphere, but knowledge of controls and ... -
Geographical study of the stroke incidence and mortality rates using Bayesian analysis
(Master thesis; Mastergradsoppgave, 2023-09-21)There is large geographical variation in the stroke incidence rate worldwide. In addition, stroke is one of the diseases with highest mortality rate. In this thesis, our main focus is to examine if there are any geographical variation in stroke incidence and mortality rates in Norway. We approach this study using models within the Bayesian framework. Before performing analysis, we first introduce ... -
The Subglacial Lake That Wasn't There: Improved Interpretation From Seismic Data Reveals a Sediment Bedform at Isunnguata Sermia
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-08-26)Radio Echo Sounding (RES) surveys conducted in May 2010 and April 2011 revealed a 2 km2 flat area with increased bed reflectivity at the base of Isunnguata Sermia at the western margin of the Greenland Ice Sheet. This flat reflector was located within a localized subglacial hydraulic potential (hydropotential) minimum, as part of a complex and elongated trough system. By analogy with comparable ... -
Deep-time Arctic climate archives: high-resolution coring of Svalbard's sedimentary record – SVALCLIME, a workshop report
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-26)We held the MagellanPlus workshop SVALCLIME “Deep-time Arctic climate archives: high-resolution coring of Svalbard's sedimentary record”, from 18 to 21 October 2022 in Longyearbyen, to discuss scientific drilling of the unique high-resolution climate archives of Neoproterozoic to Paleogene age present in the sedimentary record of Svalbard. Svalbard is globally unique in that it facilitates ... -
A Meta-Perspective on Societal Security & Safety: Ontological, Epistemological, & Axiological Assumptions in Societal Security & Safety Research
(Master thesis; Mastergradsoppgave, 2022-01-04)This thesis explores the ontological, epistemological, and axiological assumptions held by societal security & safety researchers by utilizing the scoping study methodology to select and rapidly assess relevant literature for inquiry about these assumptions. The relevant literature is analyzed according to a framework consisting of several questions related to the metaphysical notions of the author(s), ... -
ML-Peaks: Chip-seq peak detection pipeline using machine learning techniques
(Chapter; Bokkapittel, 2023-07-17)CHIP-Seq data is critical for identifying the locations where proteins bind to DNA, offering valuable insights into disease molecular mechanisms and potential therapeutic targets. However, identifying regions of protein binding, or peaks, in CHIP-seq data can be challenging due to limitations in peak detection methods. Current computational tools often require manual human inspection using data ... -
On elementary particles as representations of the Poincaré group
(Master thesis; Mastergradsoppgave, 2023-08-14)This thesis is concerned with the definition of elementary particles as irreducible projective unitary representations of the Poincaré group. During the contents of this work, we will introduce the relevant prerequisites and results. Concerning differential geometry, we will discuss smooth manifolds, Lie groups and Lie algebras. About quantum mechanics, we will introduce Hilbert spaces and the basic ...