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This thesis investigates the behaviour of an active dynamic filtering (ADF) system connected to an unknown electrical grid and suggests how to use control theory to reach desired requirements. The ADF system, which is based on a product by Comsys AB, consists of a PI controller and a low pass filter. The main part of this work was focused on developing methods for system identification by finding
The thesis investigates how employees in the anti-money laundering departments of Sweden's four major banks perceive the impact of bank secrecy on their ability to combat money laundering. Through an analysis of the results from a survey study, the thesis aims to provide insight into whether bank secrecy effectively balances anti-money laundering legislation or if there is a need for greater i
Polyhydroxybutyrate-co-valerate (PHBV), a biodegradable biopolymer, holds promise as a sustainable alternative to petroleum-based plastics. In this study, PHBV was biosynthesized and extracted, followed by an extensive evaluation of various downstream purification methods focusing on surfactant-based washing protocols. Different conditions of sodium dodecyl sulphate (SDS) washing varying in temper
Industriella revolutionen är en av de största stegen människan tagit i sin utveckling som art. Idag, ungefär två sekel senare kantas samhället med problem såsom föroreningar och hög energiförbrukning. En central aktör i denna utveckling är den kemiska industrin – en vital sektor som, särskilt inom områden som läkemedelsutveckling, har expanderat kraftigt under 1900-talet. I EU under 2020, producerChemical waste from industrial processes poses a significant environmental challenge, often resulting from inefficient synthetic routes that involve excess reagents and ineffective methods. The principles of atom and step economy have become central to modern synthetic strategies, aiming to minimize waste and maximize molecular efficiency. In this context, photo-redox catalysis has emerged as a co
This thesis focuses on two primary parts: the design of a 10-bit medium high-speed, high-linearity current-steering digital-to-analog converter (DAC), and the implementation of a linear analog interpolation technique aimed at suppressing images at the DAC output. Design considerations for the current-steering DAC are discussed comprehensively, and the circuit is designed in 22nm Fully-Depleted Si
Aim: The primary aim was to investigate the incidence, birth characteristics, and timing of diagnosis of cephalhaematoma (CH). The secondary aim was to explore associations between CH and complications during the neonatal period and infancy. Methods: This is a nationwide population-based register study of infants (< 12 months) born in Sweden from 1997 to 2018. Information was retrieved from health
In inflammatory bowel disease (IBD) the pathogenetic process is characterized by dysbiosis, increased permeability, translocation, and immune activation. The aim of the present study was to assess the presence of viable bacteria in the blood of patients with IBD and to correlate the findings with clinical characteristics. The study included 28 patients with Crohn’s disease (CD) (median age 38 year
Purpose: Ovarian cancer ranks as a gynecological malignancy with poor prognosis, specifically if detected late. Primary treatment includes cytoreductive surgery and adjuvant chemotherapy with curative intent. Local anesthetics (LA) administered in the perioperative period may potentially impact patient outcome by several mechanisms. The beneficial impact of LA has been attributed, among other fact
To evaluate the behaviour of a single timber-concrete composite (TCC) T-beam, a simplified 2D finite element (FE) model in Abaqus is developed and validated using experimental tests and the Gamma method given in Annex B of EN 1995–1-1. The shear connection used in the beam consist of perfobond connectors, which are adhesively bonded to the timber beam. In the developed model, beam and shell finite
This meta-review evaluated the possibility of more specified recommendations in antibiotic treatment through a narrowed focus on facial trauma. The aim was to analyze the effect of different regimens of antibiotic in treatment of skeletal trauma to the face. The knowledge mapping was based on existing systematic reviews (SRs) on trials specified in a PICO: Participants (P): Adults and children, di
Recent technological developments in warehousing have introduced new risks. This paper presents an integrative review that combines insights from highly automated warehouse systems (HAWS) and risk management, providing a comprehensive understanding of technology-related warehouse disruptions and vulnerabilities. We identify five major disruptions that can affect HAWS: cyberattacks, technology sabo
Estuaries are complex environments rich in biodiversity, making it challenging to understand the distribution and occurrence of microplastics due to the multiple variables that can influence the movement of these particles. Based on this, this study evaluated the influence of different environmental aspects on the distribution and transport of microplastics in the surface waters of the Tramandaí R
Chaperone proteins are essential for maintaining proteostasis. Their main role is to assist with the folding of other proteins and to prevent the aggregation of misfolded proteins. The molecular chaperone DNAJB6b efficiently suppresses amyloid formation of several peptides. This activity may rely on the same physicochemical properties as those driving chaperone self-assembly into large micellar-li
The one-particle Green function of a many-electron system is traditionally formulated within the self-energy picture. A different formalism was recently proposed, in which the self-energy is replaced by a dynamical exchange-correlation field, which acts on the Green function locally in both space and time. It was found that there exists a fundamental quantity, referred to as the dynamical exchange
This study assesses the feasibility of extracting high-quality DNA from blood samples stored at – 20 °C for up to 21 years under suboptimal conditions. It addresses sample mishandling in research, where many samples lack proper biobank protocols. Prior studies focused on short-term storage and controlled conditions, highlighting the negative effects of freeze–thaw cycles. This study evaluates whet
Motivation Efforts to address health disparities are often limited by the lack of robust computational tools for inferring genetic ancestry by calculating an individual's genetic similarity to continental groups. We have already shown that a preferred alternative to self-described race is using ancestry-informative markers (AIMs) that can be classified into ancestral components and used to estimat
