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(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Correlations in azimuthal angle extending over a long range in pseudorapidity between particles, usually called the “ridge” phenomenon, were discovered in heavy-ion collisions, and later found in pp and p–Pb collisions. ...
(Doctoral thesis / Doktoravhandling, 2024)
A challenge in vascular surgeries is the precise positioning of catheters. Robotic systems, especially flexible soft/serial-link robots, might be employed to assist surgeons during catheterizations by providing better ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
MALTA2 is the latest full-scale prototype of the MALTA family of Depleted Monolithic Active Pixel Sensors (DMAPS) produced in Tower Semiconductor 180nmCMOS sensor imaging technology. In order to comply with the requirements ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Asearch for the associated production of a heavy resonance with a top-quark or a top-antitop-quark pair, and decaying into a t ¯t pair is presented. The search uses the √data recorded by the ATLAS detector in pp collisions ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
A powerful and robust control system is a crucial, often neglected, pillar of any modern, complex physics experiment that requires the management of a multitude of different devices and their precise time synchronisation. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Background
Although dysphagia is a common side effect after radiotherapy (RT) of head and neck cancer (HNC), data on long-term dysphagia is scarce. We aimed to 1) compare radiation dose parameters in HNC survivors with ...
(Doctoral thesis / Doktoravhandling, 2024)
How does the structure of neutron-rich atomic nuclei change when moving away from stability? Here, both single-particle and collective effects are studied by using two case studies: the chain of neutron-rich copper isotopes ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Abstract
Purpose
To analyze tumor characteristics derived from pelvic magnetic resonance imaging (MRI) of patients with squamous cell carcinoma of the anus (SCCA) before and during chemoradiotherapy ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
This paper presents a study of Z → llγ decays with the ATLAS detector at the Large Hadron Collider. The analysis uses a proton–proton data sample corresponding to an integrated luminosity of 20.2 fb−1 collected at a centre-of ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
We report energy renormalizations from electron-phonon and electron-magnon interactions in spin minority surface resonances on Ni(111). The different interactions are identified, disentangled, and quantified from the ...
(Doctoral thesis / Doktoravhandling, 2024)
Space weather affects life on Earth in a variety of different ways. One of the arguably most well-known and recognizable space weather effects are the auroras (aurora borealis and aurora australis for the northern and for ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
Background
Pump thrombosis (PT) and related adverse complications contributed to the HeartWare Ventricular Assist Device (HVAD) market withdrawal. Many patients still receive lifelong support, with deficient PT surveillance ...
(Doctoral thesis / Doktoravhandling, 2024)
This thesis explores Microbially Induced Calcium Carbonate Precipitation (MICP) as a technique for soil improvement with minimal carbon footprint. In this technique, bacteria are used to drive crystallization of calcite ...
(Doctoral thesis / Doktoravhandling, 2023)
The pixel sensor chip ALPIDE (ALICE PIxel DEtector), specifically designed for the upgrade of ITS (Inner Tracking System) of ALICE (A Large Ion Collider Experiment), has been identified as an exciting candidate for other ...
(Doctoral thesis / Doktoravhandling, 2023)
In the pursuit of treatment strategies for brain tumors, advanced MRI techniques are used to investigate the properties of tumors. Cancer is known to affect the biomechanical properties of tissues, such as stiffness. MR ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Modulating surface wrinkling is important for a variety of engineering applications. It has been known for more than two decades that the wavelength of surface wrinkles occurring in a metal film–soft polymer system scales ...
(Master thesis / Masteroppgave, 2023)
(Doctoral thesis / Doktoravhandling, 2023)
Glioblastoma is a deadly type of brain cancer. It is difficult to treat and has a poor prognosis, with most adult patients surviving only 12-15 months after diagnosis. Magnetic resonance imaging (MRI) scans are essential ...
(Doctoral thesis / Doktoravhandling, 2023)
In the pursuit of the high luminosity upgrade of the Large Hadron Collider (LHC) at CERN, the current Inner Detector of the ATLAS experiment will be completely replaced by a new all-silicon Inner Tracker (ITk). MALTA, a ...
(Doctoral thesis / Doktoravhandling, 2023)
The subject of heavy-element nucleosynthesis still holds many mysteries. Part is due to the difficulty of simulating the astrophysical scenarios where it takes place, and part is because the relevant properties of the ...
(Master thesis / Masteroppgave, 2023)
In this work, new sets of multi-q ground states of the honeycomb J1-J2 Heisenberg model in the case of J1 = 2J2 were found by rewriting the Hamil- tonian in a way that allows for a geometric interpretation of the ground ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
A search for a new massive charged gauge boson, W′, is performed with the ATLAS detector at the LHC. The dataset used in this analysis was collected from proton-proton collisions at a centre-of-mass energy of = 13 TeV, and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Incoherent scatter radars (ISRs) represent the only instrument (both ground and space based) capable of making high temporal and spatial resolution measurements of multiple atmospheric parameters—such as densities, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Diffusion of Zn in (001)- and (¯201)-oriented β−Ga2O3 was studied using secondary-ion mass spectrometry and first-principles calculations based on hybrid and semilocal functionals. The β−Ga2O3 samples were sealed in quartz ...
(Doctoral thesis / Doktoravhandling, 2023)
Images taken of aurora are of key interest for research regarding space physics.To get as much material as possible, many imagers are positioned in key locations around the world, taking many images per year.Over the span ...
(Master thesis / Masteroppgave, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
After the decrease of ozone-depleting substances (ODSs) as a consequence of the Montreal Protocol, it is still challenging to detect a recovery in the total column amount of ozone (total ozone) at northern high latitudes. ...
(Doctoral thesis / Doktoravhandling, 2023)
Radio-waves propagating through the ionised part of the atmosphere, the ionosphere, can get impacted by plasma structures and irregularities. The effects on the signal can be observed by ground based receivers, and are ...
(Doctoral thesis / Doktoravhandling, 2023)
Ischemia-reperfusion injury (IRI) has long been a challenge in organ transplantation and general surgery. Disorders characterized by IRI have a high mortality and morbidity rate, where delayed treatment is one of the causes, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
MALTA is part of the Depleted Monolithic Active Pixel sensors designed in Tower 180 nm CMOS imaging technology. A custom telescope with six MALTA planes has been developed for test beam campaigns at SPS, CERN, with the ...
(Master thesis / Masteroppgave, 2023)
A geomagnetic storm originates from high-energy solar events, e.g. a coronal mass ejection, causing massive solar winds leading to complex disturbances and changes to the near-Earth space environment. This master's thesis ...
(Doctoral thesis / Doktoravhandling, 2023)
As known, data is a valuable resource nowadays. But what about what we do not know? In what way does our lack of knowledge affect the description of reality and, what is even more important, how can we use this for our own ...
(Master thesis / Masteroppgave, 2023)
This Master’s thesis develops a numerical simulation tool in Python to simulate rocket trajectory with Thrust Vector Control (TVC). The model implements a Proportional-Integral-Derivative (PID) controller adjusting the ...
(Master thesis / Masteroppgave, 2023)
The electronics group at the physics institute has developed an instrument called ’Multi-Needle Langmuir Probe’ (m-NLP) to measure electron density in plasma. This instrument flies on various space probes, e.g. on the ICI ...
(Master thesis / Masteroppgave, 2023)
In this master thesis, we compared the performance of a Neural Network (NN) and a Boosted Decision Tree (BDT) Machine Learning (ML) algorithm for the binary classification of Dark Matter (DM) signal and the Standard Model ...
(Master thesis / Masteroppgave, 2023)
In this project we analysed the functional role of directed simplicial structures in biological neural networks. This was inspired by previous work analysing the correlations in the activity in such networks, but a novel ...
(Doctoral thesis / Doktoravhandling, 2023)
The Standard Model of particle physics, describing the fundamental constituents (the matter particles) and their interactions (the forces), is undoubtedly one of the greatest triumphs of modern physics. However, the Standard ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Measurements of single-, double-, and triple-differential cross-sections are presented for boosted top-quark pair-production in 13 TeV proton–proton collisions recorded by the ATLAS detector at the LHC. The top quarks are ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Master thesis / Masteroppgave, 2023)
Spektroskopi, målingen av spektrene til elektromagnetisk stråling, har omfattende anvendelser innen astrofysikk, kjerneforskning og industriell tomografi. Innen industriell tomografi brukes strålingsdetektorer i en ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Simplified models provide a useful way to study the impacts of a small number of new particles on experimental observables and the interplay of those observables, without the need to construct an underlying theory. In this ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
After its successful campaign of measurements beyond the Polar Arctic Circle, the PolarquEEEst experiment measured the cosmic charged particle rate at sea level in a latitude interval between 35◦ Nand 82◦ N. In this paper, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Doctoral thesis / Doktoravhandling, 2023)
Crystalline materials are the backbone of modern technology, from semiconductors to structural materials. The properties of these materials, including their strength, conductivity, and optical properties, are strongly ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Doctoral thesis / Doktoravhandling, 2023)
Perineuronal nets are protein structures that encapsulate certain neurons in the brain. They have been linked to memory retention and proposed to have a barrier function, as well as affecting properties of the neuronal ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Anal cancer is a rare disease with increasing incidence. The main treatment is a combination of chemo- and radiation therapy. Modern radiation therapy is an efficient treatment, providing a high radiation dose to tumor ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Various theoretical models and experimental results propose different governing mechanisms for friction at the nanoscale. We consider a graphene sheet modified with Kirigami-inspired cuts and under the influence of strain. ...
(Master thesis / Masteroppgave, 2023)
Gjennom stadig økende fokus på programmering i skolen, som gjennom Læreplanverket for kunnskapsløftet (LK20) virkelig har fått desidert større plass også i norsk skole, er det et stort behov for forskning. Dette ettersom ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Background Radiotherapy (RT) is increasingly being used on dogs with spontaneous head and neck cancer (HNC), which account for a large percentage of veterinary patients treated with RT. Accurate definition of the gross ...
(Master thesis / Masteroppgave, 2023)
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
Recent years have witnessed an increasing interest in time-dependent coupled-cluster (TDCC) theory for simulating laser-driven electronic dynamics in atoms and molecules, and for simulating molecular vibrational dynamics. ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Metal additive manufacturing has in recent years gained an increasing amount of attention, especially the subgroup of laser powder-bed fusion and aluminium alloys. However, established alloys are designed for casting and ...
(Master thesis / Masteroppgave, 2023)
Labyrinthine and maze-like patterns emerge across diverse natural systems and scientific disciplines and have been the subject of extensive research. This study introduces a versatile growth model designed to simulate ...
(Master thesis / Masteroppgave, 2023)
The Stochastic Series Expansion (SSE) method with the Directed Loop updates allows for efficient simulation of quantum spin lattice systems at finite temperatures. Here we develop a new approach for sampling response ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
This paper describes a search for dark photons (γd) in proton-proton collisions at s√ = 13 TeV at the Large Hadron Collider (LHC). The dark photons are searched for in the decay of Higgs bosons (H → γγd) produced through ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Master thesis / Masteroppgave, 2023)
Denne oppgaven inngår som en del av flere oppgaver hvor målet er å lage et rimelig og fleksibelt forskningsekkolodd. Her er fokuset ekkoloddets svitsjenhet, som bestemmer om ekkoloddet skal sende eller motta signaler med ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Current inference techniques for processing multi-needle Langmuir probe (m-NLP) data are often based on adaptations of the Orbital Motion-Limited (OML) theory which relies on several simplifying assumptions. Some of these ...
Accelerating Spike Metrics Using Siamese Neural Networks Restricted Access
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Whereas local quantum field theories provide a natural framework for the localization of observables, the correct formulation of a localized state has yet to be clarified. The idea of strict localization was suggested by ...
(Master thesis / Masteroppgave, 2023)
The gamma ray strength functions and nuclear level densities have been extracted from particle-gamma coincidences of the Mo-96(p, p' gamma) and Mo-100(p, p' gamma) reactions from experiments at the Oslo Cyclotron Laboratory, ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
The effects of boron at concentrations ranging from 5 to 525 ppm in low copper spheroidal graphite iron (SGI) has been studied. At 130 to 140 ppm, no particular effect of boron was observed on the size distributions, number ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Several extensions of the Standard Model predict the production of dark matter particles at the LHC. A search for dark matter particles produced in association with a dark Higgs boson decaying into W+W− in the ℓ±νqq¯¯′, ...
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Master thesis / Masteroppgave, 2023)
(Master thesis / Masteroppgave, 2023)
Detection and classification of flow-regimes are needed for improvements in the oil and gas sector, as well as in nuclear power plants. This thesis work presents a novel combination of convolutional neural networks applied ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Wrought magnesium alloys have received attention due to their potential application as lightweight materials. However, their use is limited by their poor corrosion resistance. Rare earth additions have the potential to ...
(Master thesis / Masteroppgave, 2023)
Through densely connected networks of vessels, microcirculatory systems exchange blood in the vasculature and the surrounding tissue. For finite element solvers, these vast microcirculatory systems can offer challenges in ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
This paper presents measurements of charged-hadron spectra obtained in pp, p+Pb, and Pb+Pb collisions at s√ or sNN−−−√ = 5.02 TeV, and in Xe+Xe collisions at sNN−−−√ = 5.44 TeV. The data recorded by the ATLAS detector at ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
This paper presents a search for hypothetical massive, charged, long-lived particles with the ATLAS detector at the LHC using an integrated luminosity of 139 fb−1 of proton–proton collisions at s√ = 13 TeV. These particles ...
(Master thesis / Masteroppgave, 2023)
We study the behaviour of thermal systems in a freeze-in singlet model. Particularly, we account for intermediate resonant Higgs bosons in dark matter production through a finite-temperature Breit-Wigner decay rate.
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Differential cross-section measurements of Zγ production in association with hadronic jets are presented, using the full 139 fb−1 dataset of s√ = 13 TeV proton–proton collisions collected by the ATLAS detector during Run ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Purpose
To explore Norwegian breast radiologists’ expectations of adding artificial intelligence (AI) in the interpretation procedure of screening mammograms.
Methods
All breast radiologists involved in interpretation ...
(Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2023)
Migration properties of the intrinsic defects were investigated in α-Ga2O3 by controllable introduction of the lattice disorder with ion irradiation and monitoring its evolution as a function of ion dose, flux, and ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
A search for pair-produced scalar and vector leptoquarks decaying into quarks and leptons of different generations is presented. It uses the full LHC Run 2 (2015–2018) data set of 139 fb−1 collected with the ATLAS detector ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Liquid-filled corners and capillary bridges can establish networks connecting seemingly isolated clusters during drainage in porous media. Coupled with drainage through the bulk of pores and throats, the flow through these ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Vicinal surfaces of bismuth are unique test beds for investigating one-dimensional (1D) spin-polarized surface states that may one day be used in spintronic devices. In this paper, such states have been observed for the ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
Abstract Large-scale tissue deformation which is fundamental to tissue development hinges on local cellular rearrangements, such as T1 transitions. In the realm of the multi-phase field model, we analyse the statistical ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
A measurement of the top-quark mass (mt) in the tt¯ → lepton + jets channel is presented, with an experimental technique which exploits semileptonic decays of b-hadrons produced in the top-quark decay chain. The distribution ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
In this study, the results of hydrogen plasma treatments of β-Ga2O3, α-Ga2O3, κ-Ga2O3 and γ-Ga2O3 polymorphs are analyzed. For all polymorphs, the results strongly suggest an interplay between donor-like hydrogen configurations ...
(Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
The level structure of 158Er has been studied using the Gammasphere spectrometer via the 114Cd(48Ca,4n) reaction at 215 MeV with both thin (self-supporting) and thick (backed) targets. The level scheme has been considerably ...