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Kvicksilver, Hg, är ett farligt grundämne i miljön då Hg är ett flyktigt ämne. Hg blir farligt för oss människor om det ansamlas i kroppen i form av metylkvicksilver och kan orsaka skador på nervsystemet, njurar och fortplantningsorgan mm. Kvicksilver förs in i vår närmsta livsmiljö i allt större omfattning genom industriprocesser; vanligast är då förbränning av kol och användning i lampor, vulkanMercury is a a heavy metal and its presence in our environment constitutes an health-hazard for example in the form of methyl-mercury. Therefore, it is important to construct sensors to detect this pollutant. Research is also being performed on developing optical sensors and mercury can be detected through a range of methods, from point monitoring using Zeeman absorption to 3-D scanning of the atm

This thesis compares traditional machine learning algorithms and large language models (LLMs) in developing personalized recommender systems to enhance passenger experiences on flights. Traditional methods like collaborative filtering have been widely used but face challenges such as data sparsity and cold-start problems. LLMs, with their advanced natural language processing capabilities, offer pr

Today, it is difficult to take care of organs that could have been donated to patients. In Sweden around 92 000 people die every year yet less than 200 of them become kidney donors. UGLK Science AB has developed a patented technology for restoring kidney function which increases the time window for donations significantly. In this project, the exterior of the kidney perfusion machine used for this

Urban environments are often seen as the opposite of natural environments, with the belief that the built cannot accommodate the natural. However, this is a false perception. Ecological systems within urban environments are of great importance and can provide microclimates and habitats that do not exist in surrounding areas. Yet, this quality is rarely utilized because of the perception that built

In mobile communications the demand for increased capacity and speeds is a constant. 5G NR is the latest generation which is now seeing widespread adoption. Crucial technologies like Massive MIMO and beamforming are enabled by the use of large antenna arrays. While these arrays allow a 5G network to handle larger amounts of data at higher speeds they do have drawbacks. Specifically, the power requ

This study investigates the relation between preferences and cognitive effort in decision making tasks in a natural setting. Does the way a supermarket’s shelves are organized affect how easy it is to choose what items to purchase? Does it affect the quality of our choice? The eye-movements of participants were recorded during their regular shopping trips in two supermarkets with different shelf

Linear-transmitters based on combined analog locked loop universal modulator (CALLUM) architectures are attractive, as they promise both high efficiency and high linearity. To date, it has not been possible to analyze a CALLUM transmitter as a linear feedback network due to the nonlinear nature of the control equations governing it. The main purpose of this paper has been the derivation of a linea

Activity quantification in nuclear medicine imaging is highly desirable, particularly for dosimetry and biodistribution studies of radiopharmaceuticals. Quantitative In-111 imaging is increasingly important with the current interest in therapy using Y-90 radiolabeled antibodies. One of the major problems in quantification is scatter in the images, which leads to degradation of image quality. The a

Den tilltalades tidigare brottslighet kan i svensk rätt påverka påföljdsbestämningen för ny brottslighet, dvs. straffmätning och påföljdsval, på främst tre sätt. I första hand kan den tidigare brottsligheten beaktas genom ett skärpt påföljdsval. I andra hand har rätten möjlighet att förklara villkorligt medgiven frihet förverkad. I sista hand finns det genom straffskärpning möjlighet att förlänga

The aim of this Master's thesis is to construct an algorithm that nds the optimal credit limit for an individual credit card holder. It should be optimal in the sense that the algorithm suggests the lowest credit limit required for reaching the business goal of generating "X SEK within d days after limit raise" for the issuer of the credit card. This is achieved in three stages. Firs

The proposed adverse impact of income inequality on health has long been an important topic in health economics. A negative correlation between inequality and health has been found in several empirical studies but the issues regarding causality and causes are yet to be resolved. The widespread theory that the effects on health goes via disinvestment in social capital and trust is heavily researche

During the past fifty years pollinators in Europe have been declining. Agricultural intensification is considered to be main driver for this decline. In Europe agricultural schemes are used in order to e.g. maintain biological diversity. As a part of these schemes several European countries use flower strips to increase the amount of pollinators in the landscape. Status and Trends of European Poll

Purpose: This qualitative study aimed to investigate experiences and perceptions of hospital physicians regarding the discharging process, focusing on information transfer regarding medications.Methods: By purposive sampling three focus groups were formed. To facilitate discussions and maintain consistency, a semi-structured interview guide was used. Discussions were audio recorded and transcribed

In patients with suspected venous thromboembolism (VTE), it is recommended to estimate the pre-test probability of VTE, either by experience or by standardized scoring schemes (e.g. Wells or Geneva score), before performing a D-dimer test [1], [2]. Patients with a low probability or unlikely VTE should have D-dimer performed, and if negative, VTE can be excluded, without further investigations, wh

BackgroundThe Minimal Insomnia Symptom Scale (MISS) is a three-item screening instrument that has been found to be psychometrically sound and capable of screening for insomnia among adults and older people. This study aimed to test the measurement properties of the MISS together with an additional item focusing on daytime functioning among adolescents using the Rasch measurement model.MethodsA cro

Reuse of different types of experience is a key issue in successful improvement in software engineering. The approach taken in the Quality Improvement Paradigm (QIP) and its supporting organisation, tile Experience Factory (EF), is to define an Experience Base (EB), where all types of reusable objects are organised and stored. The objects may be of any type related to software development, for exa

Studying life history strategies is crucial for understanding the diversity among organisms. The trade-offs in traits related to survival, self-maintenance and reproduction play an important role in the variation of life histories and can be adjusted in response to environmental and physiological factors. Telomeres, which are repetitive DNA sequences found at the ends of chromosomes, can serve as

In this work, we use the measurement technique of high-speed Diffuse Back Illumination Extinction Imaging (DBI-EI) to obtain quantitative information in the form of projected liquid volume (PLV) in a highly transient GDI process. For the DBI-EI setup we use a LED-Panel as the light source, which fulfills diffuse back illumination extinction imaging criteria. Measurements were carried out in a cons