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Comparing multispectral and hyperspectral data for savannah tree species classification using machine learning

This thesis explores the classification of savannah trees using EnMAP hyperspectral and Sentinel-2 multispectral satellite data using a Random Forest classifier. The study aimed to assess if the increase in spectral information from the hyperspectral data gives an increase in classification performance, to find the advantages and limitations to hyperspectral data compared to multispectral data and

The future of the European Steel Market, Costs vs Emissions in Steel Sourcing

Background: Growing corporate awareness of environmental and social impacts, coupled with initiatives like the Science-Based Targets initiative (SBTi), is driving companies to address greenhouse gas emissions, particularly indirect Scope 3 emissions which often constitute the largest share of their carbon footprint. For ASSA ABLOY, Scope 3 emissions represent 99% of its total footprint, with purch

Why Do Some Lineages Radiate While Others Do Not? Perspectives for Future Research on Adaptive Radiations

Understanding the processes that drive phenotypic diversification and underpin speciation is key to elucidating how biodiversity has evolved. Although these processes have been studied across a wide array of clades, adaptive radiations (ARs), which are systems with multiple closely related species and broad phenotypic diversity, have been particularly fruitful for teasing apart the factors that dr

Health professionals’ experiences delivering an Interdisciplinary Nurse-coordinated SELf-MAnagement intervention for patients with inflammatory arthritis

Purpose: The complex Interdisciplinary Nurse-coordinated SELf-MAnagement (INSELMA) intervention for patients with IA who experience substantial disease impact, was tested in a feasibility study. This study explored healthcare professionals’ (HPs) experiences of delivering the intervention. Materials and methods: A qualitative longitudinal evaluation study was conducted based on four focus group in

Arsine, Stibine and Phosphine Derivatives of [Fe2(CO)6(μ-bdt)] (bdt = Benzenedithiolate) : Syntheses, Structures and Spectroscopic and Electrocatalytic Studies

The reactivity of the benzenedithiolate (bdt)-bridged complex [Fe2(CO)6(µ-bdt)] with arsine, stibine and phosphine ligands has been studied. The new mono- and disubstituted complexes [Fe2(CO)5(EPh3)(µ-bdt)] (E = As, 1; E = Sb 3) and [Fe2(CO)4(EPh3)2(µ-bdt)] (E = As, 2; E = Sb, 4) and the previously reported [Fe2(CO)4(PPh2H)2(µ-bdt)] (5) have been prepared by Me3NO-initiated carbonyl substitution r

Kommersialisering och outsourcing av hushållsarbete : RUT-avdrag, migrantarbete och exploatering inom den svenska städindustrin

Privat städhjälp var tidigare ett marginellt fenomen på svensk arbetsmarknad. Precis som den kommersiella städningen så utfördes den framförallt av kvinnor och i synnerhet av invandrarkvinnor. Ersättningen var låg och utbetalades ofta svart och de som använde sig av privat städhjälp var i första hand välbärgade svenska familjer. För majoriteten av svenska hushåll var däremot städning och annat hus

A CFD-based approach to study cavitation in high-pressure homogenizer valves. Part 1. Cavitation inception, extent and location

Hydrodynamic cavitation occurs in high-pressure homogenizer (HPH) valves, causes wear and influences emulsification. Substantial advances have previously been made studying HPH cavitation in experimental systems. However, there is a lack of understanding on how cavitation develops in industrially relevant valves. The series applies CFD to address this knowledge gap. This part combines a previously

Prevalence of Contact Allergy to Propolis—Testing With Different Propolis Patch Test Materials

Introduction: Propolis is a sticky substance produced by honeybees from plant resins collected from locally growing vegetation. Its chemical composition varies depending on the plant species visited by the bees. Contact dermatitis is commonly reported following exposure to cosmetics containing propolis or following the intake of food supplements. Objectives: To investigate the prevalence of contac

Influence of degradation products from thermal wood modification on wood-water interactions

Thermal modification is a widely used technology for enhancing the dimensional stability and durability of wood. However, thermal degradation reactions in wood are complex and depend on the process conditions applied. Degradation products from thermal wood modification are expected to affect the wood chemistry and the wood–water interactions of the thermally modified wood. In this paper, we invest

Evaluation of laser diffraction as a fast method for particle size distribution measurement of plant cell structures in whole oat and soy beverages

In food engineering in general and in liquid food processing specifically, accurate measurement of particle size is important, both for product development and daily quality control. Laser diffraction is the dominating method for particle size measurement of e.g., plant cell structures in food and beverage processing. However, the accuracy of the method can be questioned since these particles diff

Use of Biopowders as Adsorbents of Potentially Toxic Elements Present in Aqueous Solutions

This study examines the adsorption and desorption behaviors of phosphorus (P), arsenic (As), fluoride (F), and chromium (Cr) in aqueous solutions on green materials such as cork bark (CB) and pine bark (PB). These materials are characterized by active functional groups and net negative charges on their surfaces and porous structures. The evaluation considers variations in contaminant concentration

A framework for neural organoids, assembloids and transplantation studies

As the field of neural organoids and assembloids expands, there is an emergent need for guidance and advice on designing, conducting and reporting experiments to increase the reproducibility and utility of these models. In this Perspective, we present a framework for the experimental process that encompasses ensuring the quality and integrity of human pluripotent stem cells, characterizing and man

Counter-diffusion studies of human transthyretin : the growth of high-quality crystals for X-ray and neutron crystallography

A crystallogenesis study of human transthyretin using the counter-diffusion method is described as an alternative to conventional convective vapour diffusion and batch approaches for protein crystallization. The X-ray diffraction results show systematic trends that exhibit unique patterns of crystallization and high crystal quality as well as a remarkable degree of coherence within extended crysta

The Role of Geometry in Mg Implant Design

During the last decades, MgMg and alloys gained interest as degradable implant materials: its mechanical propertiesMechanical properties are close to bone and a second surgery for removing them can be avoided. Properties are gained from chemical composition and processing as they are responsible for microstructureMicrostructure development. However, this is not good enough in many cases. When the

Enlarged cavum septum pellucidum as a neuroimaging signature of head impact exposure

Cavum septum pellucidum (CSP) is commonly observed upon neuroimaging examination in individuals exposed to repetitive head impacts (RHI) and post-mortem in cases with chronic traumatic encephalopathy. Consequently, CSP has been proposed as a potential biomarker for RHI-related neurodegeneration, yet prevalence estimates of CSP across other neurodegenerative diseases and its clinical implications a

Degradation of simethicone – A study on formation of D4, D5 and D6

Simethicone, a widely used anti-foaming agent in pharmaceuticals, consists mainly of polydimethylsiloxane (PDMS) combined with silica gel. While it is safe in pharmaceutical use, concerns have been raised about its degradation into cyclic siloxanes—specifically D4, D5, and D6—which can cause environmental and health hazards. This study investigated the degradation behavior of simethicone under var

Alternative production method of Psilocybin, bioreactor cultivation of Psilocybe Cubensis

Depression är ett stort problem i samhället idag, det vanligaste läkemedlet som används för behandling av det är någon typ av Selektiva serotoninåterupptagshämmare (SSRI). Dessa läkemedel är effektiva men kräver regelbundna doser och har otrevliga sidoeffekter såsom viktuppgång, emotionell avtrubbning och sexuell dysfunktion. Psilocybin har nyligen fått uppmärksamhet som ett alternativ till dessThe scientific interest in psilocybin has recently been reignited, the research community has once again begun to investigate the promising potential that psilocybin offers in the area off treatment of depression and PTSD. An obstacle to the research of psilocybin is that today pharmaceutical grade psilocybin is produced using an inefficient and thus costly synthetic process. This hampers the rese

Urban Heat and Elderly Vulnerability: The Role of Urban Blue and Green Spaces in Gothenburg, Sweden

This research explores how elderly residents in Gothenburg, Sweden, interact with and access-urban blue and green spaces, how this may vary in warmer temperatures, and the applications this-can have in current climate adaptation planning in the city. This study considers a localized focus-area situated in Gothenburg Municipality’s Climate Adaptation Plan. Using a mixed methods-approach, this resea

Utökad användning av batterilagring vid gasturbinanläggningar, möjligheter för stödtjänster och elhandel

This disquisition explores the possibilities to install a battery storage situated in a gasturbineplant to enable a start up of the gasturbine in the case of a powerfailure. Since powerfailures are rare, the battery will mostly and to a large extent be unused, this creates an economic dilemma. Uniper has taken in and recieved a tender which includes and discribes a battery with a larger storage sy

A Study of Changes in Resistivity of the Semi-Conducting Layers in High Voltage Direct Current Cables

The resistivity of the semi-conducting material in high voltage direct current cables were studied under a variety of conditions. A wide theoretical background was also created, summarizing previous works within the field and providing useful explanations for the characteristics seen in the results. The semi-conducting material works as a protective shield for the insulation of the cable, protecti