Munin: Recent submissions
Now showing items 4901-4920 of 37183
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Trustworthiness Evaluation Framework for Digital Ship Navigators in Bridge Simulator Environments
(Chapter; Bokkapittel, 2023)The maritime industry is going towards implementing digital navigators, i.e., AI created by machine learning algorithms, on autonomous vessels in the future. Digital navigators can be developed by utilizing machine learning algorithms, e.g., deep learning type neural networks trained by data sets from human navigators. Even though there is significant importance in studying the trustworthiness of ... -
Multiple Model Adaptive Estimation Coupled With Nonlinear Function Approximation and Gaussian Mixture Models for Predicting Fuel Consumption in Marine Engines
(Chapter; Bokkapittel, 2023)Digital twin type models can be developed for physical systems that are complex nonlinear a system of systems (SoS). However, such models are usually difficult to represent by linear equations. Therefore, an adequate linearization technique should be introduced. Therefore, linear models as digital twins can be interpreted easily and need much less computational power when applied to various industrial ... -
Exotic pollen in sediments from the high Arctic Lake Tenndammen, Svalbard archipelago: diversity, sources, and transport pathways
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-18)We analysed the pollen and spores extracted from 73 samples of lacustrine sediments from Colesdalen in Svalbard (Lake Tenndammen) as well as 10 soil samples collected from the lake’s shores. In total, 56 pollen taxa were recorded from the sediments spanning the last 800 years, whilst 35 pollen types were found in the soil samples. Pollen was categorised as (i) regional (from Svalbard); (ii) ... -
CELLULAR, A Cell Autophagy Imaging Dataset
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-11-16)Cells in living organisms are dynamic compartments that continuously respond to changes in their environment to maintain physiological homeostasis. While basal autophagy exists in cells to aid in the regular turnover of intracellular material, autophagy is also a critical cellular response to stress, such as nutritional depletion. Conversely, the deregulation of autophagy is linked to several diseases, ... -
Anti-microbial activity and immunomodulation of recombinant hepcidin 2 and NK-lysin from flounder (Paralichthys olivaceus)
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-10-21)Infections due to pathogens impact global aquaculture economy, where diseases caused by bacteria should be in particular focus due to antibiotic resistance. Hepcidin and NK-lysin are important innate immune factors having potential to be exploited as alternatives to antibiotics due to their antimicrobial activity and immunomodulatory capacity. In this study, the recombinant proteins of hepcidin 2 ... -
Preventing E. coli Biofilm Formation with Antimicrobial Peptide-Functionalized Surface Coatings: Recognizing the Dependence on the Bacterial Binding Mode Using Live-Cell Microscopy
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-31)Antimicrobial peptides (AMPs) can kill bacteria by destabilizing their membranes, yet translating these molecules’ properties into a covalently attached antibacterial coating is challenging. Rational design efforts are obstructed by the fact that standard microbiology methods are ill-designed for the evaluation of coatings, disclosing few details about why grafted AMPs function or do not ... -
Quantifying zoobenthic blue carbon storage across habitats within the Arctic’s Barents Sea
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-26)Introduction: The Arctic sea ice extent in September (when it is at its lowest) has declined 13% Q10 per decade, and the Arctic Ocean is becoming a more Atlantic-influenced system. Rapid climate-forced changes are taking place in many high-latitude marine ecosystems. The Barents Sea is one such highlatitude shelf ecosystem, between approximately 70° and 80°N in the Norwegian Arctic. The purpose ... -
Unpacking uncertainty in regional avalanche forecasting: A quantitative case study of uncertainty in forecasting regional avalanche danger
(Master thesis; Mastergradsoppgave, 2023-12-10)When assessing a risk, a future event, uncertainty is vital as we cannot know what will happen. Having an active relationship to uncertainty can reduce it and help the decision-makers make informed decisions. Avalanche forecasting is widely used by outdoor recreational and local authorities for emergency preparedness use. Therefore, an additional focus on uncertainty in this field benefits people ... -
Power availability of PV plus thermal batteries in real-world electric power grids
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-07-25)As variable renewable energy sources comprise a growing share of total electricity generation, energy storage technologies are becoming increasingly critical for balancing energy generation and demand.<p> <p>In this study, a real-world electricity system was modeled rather than modeling hypothetical future electric power systems where the existing electricity infrastructure are neglected. In ... -
The expressive power of pooling in Graph Neural Networks
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023)In Graph Neural Networks (GNNs), hierarchical pooling operators generate local summaries of the data by coarsening the graph structure and the vertex features. While considerable attention has been devoted to analyzing the expressive power of message-passing (MP) layers in GNNs, a study on how graph pooling affects the expressiveness of a GNN is still lacking. Additionally, despite the recent advances ... -
Total Variation Graph Neural Networks
(Journal article; Tidsskriftartikkel, 2023-07)Recently proposed Graph Neural Networks (GNNs) for vertex clustering are trained with an unsupervised minimum cut objective, approximated by a Spectral Clustering (SC) relaxation. However, the SC relaxation is loose and, while it offers a closed-form solution, it also yields overly smooth cluster assignments that poorly separate the vertices. In this paper, we propose a GNN model that computes cluster ... -
Grazing intensity drives a trophic shift in the diet of common alpine birds
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-02-18)Large mammalian herbivores (LMH) shape vertebrate communities and structure food webs in many terrestrial ecosystems. However, the mechanisms that underlie the effects of LMH on other vertebrates are poorly understood. In France, domestic LMH have grazed alpine and mountain grasslands for thousands of years, profoundly influencing landscapes and wildlife. As LMH modify habitat structure, favour ... -
Advanced data cluster analyses in digital twin development for marine engines towards ship performance quantification
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-02-24)Due to the growing rate of energy consumption, it is necessary to develop frameworks for enhancing ship energy efficiency. This paper proposes a solution for this issue by introducing a digital twin framework for quantifying ship performance. For this purpose, extensive low-level clustering is performed using Gaussian Mixture Models (GMM) with the Expectation Maximization algorithm on a dataset ... -
CaMKIIa+ neurons in the bed nucleus of the stria terminalis modulate pace of natural reward seeking depending on internal state
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-02-24)This study aims to investigate the underlying neurobiological mechanisms that regulate natural reward seeking behaviors, specifically in the context of sexual behavior and sucrose self-administration. The role of CaMKIIa+neurons in the bed nucleus of the stria terminalis (BNST) was explored using chemogenetic silencing and -stimulation. Additionally, the study examined how these effects ... -
A new dispatching mechanism for parallel-machine scheduling with different efficiencies and sequence-dependent setup times
(Journal article; Tidsskriftartikkel; Peer reviewed, 2024-02-22)he Apparent Tardiness Cost (ATC) dispatching rule was initially developed to minimize tardiness in single machine scheduling problems. ATC extensions have been frequently applied in other production settings, relying heavily on blocking idle machine capacity with a single-machine outlook; this approach may not result in the best outcomes, considering that machines have different efficiencies. This ... -
Full Transfer Potential in L3/Ln Acquisition Crosslinguistic Influence as a Property-by-Property Process
(Chapter; Bokkapittel, 2023-07-13)This chapter discusses L3/Ln acquisition as a step-by-step acquisition process, where crosslinguistic influence is considered to be the result of co-activation of lexical items and syntactic structures of the previously acquired languages in processing. That is, as argued by the Linguistic Proximity Model and the Scalpel Model, L3/Ln acquisition is learning by parsing/processing. The main focus of ... -
On C-class equations
(Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-29)The concept of a C-class of differential equations goes back to E. Cartan with the upshot that generic equations in a C-class can be solved without integration. While Cartan’s definition was in terms of differential invariants being first integrals, all results exhibiting C-classes that we are aware of are based on the fact that a canonical Cartan geometry associated to the equations in the class ... -
Conflict Coverage in India and Pakistan of the Taliban Takeover in 2021 A Study of English-language Newspapers’ Reporting in Light of the Security Competition between India and Pakistan and the Enduring Rivalry at its Core
(Mastergradsoppgave; Master thesis, 2023-11-01)After twenty years of war, in August 2021, the United States withdrew from Afghanistan, the Afghan forces surrendered, and the Taliban regained power over Afghanistan (Yousaf and Jab-arkhail 2021, 1). The resulting security risks extend beyond the borders of Afghanistan (Verma 2022, 152). Consequently, the events received extensive attention in the media outlets in the region. This research analyses ... -
Between Self-determination and Secession: An Assessment of the Indigenous People of Biafra (IPOB) Agitations for the Independence of Southeast Nigeria
(Mastergradsoppgave; Master thesis, 2023-10-31)This thesis assesses the conflict between the Nigerian state and an ethnic-based organization called the Indigenous People of Biafra (IPOB). The Nigerian-IPOB conflict stems from the Nigerian Civil War of 1967 - 1970, which was caused by a secessionist attempt by the eastern region of Nigeria, historically referred to as The Biafra War. Amid claims of marginalization and the adoption of indigenousness ... -
Exploring helpers' perspectives about Mental Health and Psychological Support (MHPSS) offered to refugees in Mozambique
(Mastergradsoppgave; Master thesis, 2023-10-31)Civil wars have the potential to produced devastating impacts, including increasing the number of people seeking asylum abroad. Forcibly displaced people usually carry vulnerabilities and are at greater risk of developing common and severe mental health disorders, due to stress and traumatic situations experienced prior to their flight or even after arriving at the host country, all of that combined ...