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Can you hear cancer? A statistical investigation into throat cancer detection using voice recordings

Halscancer är en livsförändrande diagnos som innefattar omständliga och obehagliga undersökningar. Då cancern påverkar stämband och form på strupen uppstår frågan: Kan man höra cancer? Detta arbete undersöker hur denna röstförändring kan användas för att tidigt diagnostisera cancer genom att analysera rösten genom ljudbehandling och statistiska modeller för klassificering. För att undersöka huruvThis thesis explores whether throat cancer can be detected from voice recordings using statistical methods in the context of mobile health applications. It focuses on two main questions: Can throat cancer be detected from voice recordings? and Which data features and models perform best in this task? To investigate these questions, acoustic features were extracted from patient recordings and analy

Maximising protein production by avoiding food-feed competition - parameterisation of feeds in a Swedish food systems model

A major inefficiency in contemporary agriculture arises from food-feed competition, where limited agricultural resources are used to produce animal feed instead of human-edible crops. Due to factors like metabolic losses and waste, this is often less resource efficient. This thesis investigates the optimal number of cattle in the Swedish agricultural system when aiming to maximise protein producti

Removal of PVA from textile wastewater using modified PVDF membranes by electrospun cellulose nanofibers

The objective of this study was to assess the feasibility of using a poly(vinylidene fluoride) (PVDF) membrane modified with cellulose/nanostructures as a separation technique for the removal of poly(vinyl alcohol)(PVA)/reactive dyes from synthetic textile wastewater. The goal was to recycle PVA/reactive dye yellow 145 for reuse in the industry while simultaneously reclaiming water for reuse. To a

Exceptionally Strong Double-Layer Barriers Generated by Polyampholyte Salt

Experiments using the surface force apparatus have found anomalously long-range interactions between charged surfaces in concentrated salt solutions. Ion clustering has been suggested as a possible origin of this behavior. In this work, we demonstrate that if such stable clusters indeed form, they are able to induce remarkably strong free energy barriers under conditions where a corresponding solu

Acoustic estimation of voice roughness

Roughness is a perceptual characteristic of sound that was first applied to musical consonance and dissonance, but it is increasingly recognized as a central aspect of voice quality in human and animal communication. It may be particularly important for asserting social dominance or attracting attention in urgent signals such as screams. To ensure that the results of roughness research are valid a

Advancing time-resolved structural biology: latest strategies in cryo-EM and X-ray crystallography

Structural biology offers a window into the functionality of molecular machines in health and disease. A fundamental challenge lies in capturing both the high-resolution structural details and dynamic changes that are essential for function. The high-resolution methods of X-ray crystallography and electron cryo-microscopy (cryo-EM) are mainly used to study ensembles of static conformations but can

Wage Earners, Taxpayers or Everyman Capitalists? : The Making of a Mutual Fund Culture in Sweden

This chapter explains how a mutual fund culture, which strengthened the link between households and the stock market, emerged exceptionally early in Sweden. We explore the popularisation of individual shareholding through state-subsidised fund savings schemes, the Tax Funds (introduced by the centre-right government in 1978) and the similar Everyman’s Funds (introduced by the Social Democratic gov

Impacts of the 2019–2020 Black Summer Drought on Eastern Australian Forests

Droughts present a significant global challenge, particularly to forest ecosystems in regions such as eastern New South Wales, Australia, which is known for its dry climate and frequent, intense droughts. Recent studies have indicated a notable increase in tree mortality and canopy browning across this area, especially during the recent extreme drought period culminating in the Black Summer of 201

Entrepreneurial ecosystems in the informal economy : a case study of mototaxi drivers in Colombia

In this chapter, we evaluate how the concept of the entrepreneurial ecosystem - a systemic approach to regional economic development that is receiving increased attention from both policymakers and academics - can assist in analysing and understanding the informal economy. We argue that despite the focus of entrepreneurial ecosystems on high-growth entrepreneurship, the ‘systemic’ perspective of t

A balancing act : towards a conceptual framework for the governance of buyer-supplier relationships in defence supply chains

Against the backdrop of the current geopolitical situation, logistics preparedness emerges as a pivotal area of focus for defence supply chains. Despite the critical role of commercial suppliers, research on utilising these in defence logistics and supply chains remains scarce. Adopting a supply chain governance lens, we have conducted a systematic literature review to provide an overview of exist

Synthetic DNA and mitochondrial donation : no need for donor eggs?

Mitochondrial replacement therapy has been developed in order to prevent the transmission of mitochondrial mutations, yet it raises ethical concerns, particularly regarding the involvement of third-party DNA and the risks associated with donor procedures. This paper explores an alternative approach using synthetic DNA (synDNA) to construct mitochondrial organelles, thereby bypassing the need for d

Canopy height and biomass distribution across the forests of Iberian Peninsula

Accurate mapping of vegetation canopy height and biomass distribution is essential for effective forest monitoring, climate change mitigation, and sustainable forestry. Here we present high-resolution remote sensing-based canopy height (10 m resolution) and above ground biomass (AGB, 50 m resolution) maps for the forests of the Iberian Peninsula from 2017 to 2021, using a deep learning framework t

Insights into the Interconnected Dynamics of Groundwater Drought and InSAR-Derived Subsidence in the Marand Plain, Northwestern Iran

Groundwater drought, a significant natural disaster in arid and semi-arid regions, contributes to numerous consecutive issues. Due to the inherent complexity of groundwater flow systems, accurately quantifying and describing this phenomenon remains a challenging task. As a result of excessive agricultural development, the Marand Plain in northwestern Iran is experiencing both groundwater drought a

Episodic events are flexibility encoded in both integrated and separated neural representations

This study investigates how the brain encodes episodic events to support diverse memory functions. Thirty-six participants viewed movies simulating real-life interactions while EEG was recorded. They first watched movies featuring two characters (AB), followed by scenes where one original character interacted with a new one (BC). Memory was assessed for direct (AB and BC), indirect (AC) associatio

Anxious Dads and Depressed Moms : Child Disability and the Mental Health of Parents

Having a child with a disability undoubtedly affects parents in many ways, including their well-being. However, the specific mental health trajectories of parents, differentiated by the severity of impairments and parental roles, remain under-explored. We investigate the mental-health effects of having a child with a disability. Using individual-level register data from Sweden, we exploit the epid