This thesis theoretically investigates electronic transport in different low dimensional nanostructures. The miniaturization of electronics means that we reach a limit where quantum effects play a role in electronic devices. To understand and improve electronics at this level it is important to understand the transport properties. Excellent control over the nanostructures also makes them a great p

A well-balanced exploration-exploitation trade-off is crucial for successful acquisition functions in Bayesian optimization. However, there is a lack of quantitative measures for exploration, making it difficult to analyze and compare different acquisition functions. This work introduces two novel approaches - observation traveling salesman distance and observation entropy - to quantify the explor

Nordic Raga is a project featuring three Swedish folk musicians—Mats Edén, Tina Quartey (replacing Dan Knagg), and Pär Moberg—who, together with Jyotsna Srikanth, explore what happens when Nordic folk music meets South Indian musical practice in arranging and improvising music. At this concert they played with:Maya Youssef (SYR/UK) – Arabic qanun, a trailblazer as a female qanun player.Jyotsna Sri

Introduction: Epidemiological studies on elite female ice hockey players are lacking but needed to tailor preventive efforts in this growing group of athletes. Therefore, the aim of this study was to describe the incidence, prevalence, and burden of health problems in elite female ice hockey players. Methods: In this prospective cohort study, we asked all Swedish Women's Hockey League (SWHL) playe

Recent work reported that simple Bayesian optimization methods perform well for high-dimensional real-world tasks, seemingly contradicting prior work and tribal knowledge. This paper investigates the 'why'. We identify fundamental challenges that arise in high-dimensional Bayesian optimization and explain why recent methods succeed. Our analysis shows that vanishing gradients caused by Gaussian pr

Bayesian optimization (BO ) is an effective method for optimizing expensive-to-evaluate black-box functions. While high-dimensional problems can be particularly challenging, due to the multitude of parameter choices and the potentially high number of data points required to fit the model, this limitation can be addressed if the problem satisfies simplifying assumptions. Axis-aligned subspace appro

To address the pressing challenge of decarbonizing heavy-duty transportation, this thesis explores advanced combustion strategies using sustainable gaseous fuels, specifically hydrogen and methane, in internal combustion engines (ICEs). While electrification remains difficult to implement in long-haul applications due to energy density and infrastructure limitations, this work identifies and refin

In the plant-based beverage industry, a residue called okara, is generated in large quantities in the liquid-solid separation step. Despite the high nutritional value of okara from soy and oat beverages with respect to fiber and protein content, these residues are generally discarded or used as animal feed or compost. It would be more sustainable to utilize okara for human consumption, however, th

Non-typeable Haemophilus influenzae (NTHi) is an emerging respiratory pathogen that causes a significant disease burden worldwide, yet an effective vaccine is still lacking. The focus of this thesis is to elucidate the critical molecular interactions governing NTHi pathogenesis and host immunity. We identified Elongation Factor Tu (EF-Tu) as a surface-exposed protein on NTHi, demonstrating its imm

For the past decade, the sharing economy has not only grown but also expanded to cover a wide variety of different activities across the globe. Despite a lot of research, there is still no agreement on how to define and measure the sharing economy, and no consensus on whether the sharing economy is a part of or an alternative to a regular capitalist economy. This paper contributes by presenting a

This master’s thesis project explores different methods for determining an effective electron-electron interaction strength to model dynamic interactions in the Anderson impurity model, an important model within the field of many-body quantum mechanics. The Anderson model describes an impurity atom which is embedded in a metal, with which in can exchange electrons. In this project, different obser

This chapter discusses the role of placed-based relational entanglements in disasters and argues that relations play an important part in shaping how disasters unfold. Exploring the case of mining induced displacement in Sweden’s Malmfälten region – where two cities, Kiruna and Malmberget, and several villages are being moved or razed to make way for expanding mines – the chapter demonstrates how This chapter explores the role of placed-based relational entanglements in disasters and argues that relations play an important part in shaping how disasters unfold. Exploring the case of mining-induced displacement in Sweden’s Malmfälten region—where two cities, Kiruna and Malmberget, and several villages are being moved or razed to make way for expanding mines—the chapter demonstrates how a str

Since the 1987 UN report “Our Common Future”, aimed at bridging divides among various stakeholders by advocating for “sustainable development”, renewed demands for environmentally adjusted measures have emerged, calling for a future that consolidates socially just, ecologically sound, and economically viable outcomes through sustainable forest management. For Nordic forests, this means policy meas