Filetype
The QR decomposition is used to solve least squares problems, systems of equations and other important linear algebra tasks. We consider the computation of the QR decomposition for tall-skinny matrices, using the Cholesky decomposition as an intermediate step. To improve efficiency, we introduce randomised numerical linear algebra and sketching as a tool for improving computational efficiency. Num
The synthesis of small organic molecules in the pharmaceutical industry necessitates efficiency and selectivity. For obtaining selectivity in C(sp2)-H functionalization, thianthrenation has emerged as a promising method for furnishing electrophilic substrates, with thianthrene acting as a linchpin that facilitates selective functionalization through subsequent displacement reactions. This thesis u
This study delves into the role of films, particularly animated films, in shaping and reshaping international audiences’ perceptions and tourist intention of a destination.Data were collected qualitatively through semi-structured interviews with multicultural participants studying at Lund University, both before and after watching the movie.Movie attributes model (Place-Performance-Personality mod
Traditional mechanical methods for the recycling of polyethylene terephthalate (PET) fail to produce high-quality materials suitable for upcycling. Alternatives like chemical recycling face challenges due to the high energy demands, concerns, and the cost of specialized equipment. Enzymatic recycling has emerged as a promising alternative, offering a simple process under environmentally friendly c
This study explores the potential of thermophoresis as a method of translating silicon nanowires in a liquid. Thermophoresis, the movement of particles against a temperature gradient, provides a scalable method of manipulating the particles. Simulations conducted in COMSOL examined both spherical and cylindrical approximations of nanowires, focusing on their translation under varying temperature g
This paper investigates the impact of Trump’s opinion polls on U.S. Treasury yields during the 2016, 2020, and 2024 presidential elections. Focusing on both 2-year and 10-year yields, the study examines short- and long-term perspectives and compares the effects across the 2016 and 2024 elections. Using a GARCH-in-Mean model and the “Trump-Head-to-Head Momentum” (THHM) variable, we test three hypot
This project investigates non-planar 3D printing techniques using a robotic system and Polylactic Acid (PLA) filament, drawing inspiration from the spider web’s structure. The primary aim is to develop methods that optimise material usage while maximising print coverage over large areas. Ultimately, the research seeks to expand the capabilities of robotic manufacturing and uncover new architectura
Dogs, gophers, ants, and frogs pop in and out of Steinbeck’s literature, and while they might escape unnoticed at a first glance, these animals serve a significant role to the storytelling. The question is what purpose animals serve in some of Steinbeck’s short novels. I argue that animals in the six novels primarily serve the purposes of mirroring characters and emphasising depth, empathy, and co
This thesis explores how the relationship between economic shocks and fertility rates has evolved in Spain from 1977 to 2024, using regional panel data across the country’s 17 autonomous communities. The analysis applies two-way fixed effects models to assess whether the impact of economic variables, particularly unemployment, has diminished over time, as demographic and cultural factors have gain
As social media continues to advance rapidly and globalization intensifies, brands are grappling with a heightened complexity of crises. In this process, emotional factors are crucial in disseminating the crisis. Brands are increasingly attempting to influence the emotions of their audiences and ease crises through entertaining content. To explore the potential of brand entertainment strategies as
This study investigates how expiration dates and dynamic shelf life labels influence consumer preferences and willingness to pay (WTP) for fresh chicken products. Using a discrete choice experiment (DCE), the research evaluates the impact of shelf life duration, price, and the presence of a real-time freshness indicator on consumer decision-making. A sample of fresh chicken consumers in Lund, Swed
Mental Imagery (MI) allows us to simulate real-life experiences and visualise events we have never witnessed, but what happens when we change the language of the narrative? This study investigated how language context (L1 vs. L2) influences the vividness of mental imagery and the emotional intensity associated with that imagery during narrative comprehension. A total of 58 sequential bilinguals fr
The Rohingya crisis is a profound human rights and humanitarian disaster, representing one of the most severe contemporary instances of statelessness. This condition is characterised by the systematic denial of nationality and fundamental rights, largely facilitated by Myanmar's discriminatory state-institutionalised practices and its Citizenship Law of 1982, which excludes the Rohingya from r
Title: Hedging with Heritage: Investigating the risk-mitigating role of Corporate Brand Heritage Course: BUSN39 - Degree Project in Global Marketing Purpose: This study aims to examine the relationship between corporate brand heritage and their stock price volatility. Methodology: A quantitative approach is employed, using researcher-assigned formative indicators to quantify corporate brand herit
Railway networks are a critical component of modern transportation systems, but their efficiency is often challenged by disturbances that propagate through the network, leading to delays and reduced punctuality. This thesis investigates station-level disturbances and their duration, with the aim of developing a foundation for an online tool that can estimate disturbance durations. Using historical
This thesis investigates the effectiveness of step size control in the numerical simulation of Stochastic Differential Equations (SDEs). The study is divided into a theoretical exploration and a series of numerical experiments. The theoretical section introduces key definitions and theorems, delves into the properties of Brownian motion, and examines the conditions under which solutions to SDEs ca
In recent years, the focus that LGBTQ+ rights have been receiving internationally has led to the reconsideration of their status, in both national and international contexts. Among many examples, this shift has been significant in Israel, where political discourse has made LGBTQ+ rights more and more visible. This study aims to present the processes of how Israeli politicians have incorporated LGB
The kraft pulp bleaching process presents significant operational challenges due to its inherent non-linear reactions and unpredictable delays, complicating effective control and optimization. This thesis aims to improve the efficiency of the process through modeling it, and lays the groundwork for a new and improved automatic model-based control system. It explores a way of handling the varying d
This thesis explores the aesthetics of microplastics in climate art – art specifically produced to point up issues related to climate change or perceived as addressing these issues – and reflects on the perceptual challenge posed by the often invisible presence of microplastics despite their profound environmental impacts. The study focuses on how two artworks, Pyroplastics and Plastic Air render
The composition of the tumour microenvironment has been reported as a meaningful predictor in triple-negative breast cancer’s (TNBC) prognosis and response to treatment and has allowed for implementation of new therapeutic approaches such as immunotherapy. Therefore, new spatially resolved approaches have arisen recently to unravel the properties of the microenvironment, ranging from spatial trans
