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Vi använder dem varje dag utan att tänka på det. PFAS är kemikalier som finns i regnjackor, stekpannor, matförpackningar och till och med i brandskum. Problemet är att de inte bryts ner i naturen. De sprids i stället med vatten och kan till slut hamna i våra sjöar och i vårt dricksvatten. Och det är precis vad som händer i sjön Bolmen. Bolmen är inte vilken sjö som helst. Den är en av södra SverigPer- and polyfluoroalkyl substances (PFAS) are a group of highly persistent synthetic chemicals that have raised growing concern due to their widespread presence in the environment and potential health effects. This study focuses on Lake Bolmen, one of southern Sweden’s most important sources of drinking water, and investigates how PFAS enter and accumulate in the lake. A total of 23 PFAS compound

Machine learning models can analyze physiological data, such as electroencephalography (EEG), for various classification tasks. One such task is Auditory Attention Decoding (AAD), aimed at identifying the sound a person is actively attending to, offering significant benefits for users of hearing aids. However, EEG data often exhibits a low signal-to-noise ratio, and its collection is often expensi

Purpose: The purpose of this study is to explore how consumers perceive brand-centric entertainment films, as well as how these films influence associations with the brands featured within them. Specifically, the study seeks to identify if and how these films shape or reshape brand meaning from a consumer perspective. Methodology: The study takes a qualitative approach and employs a research desi

As digital transformation continues to expand, the threat landscape for cyber-attacks has become increasingly complex. Proactive detection and prevention of cyber-threats are essential to secure critical infrastructures. This thesis proposes an approach centered on leveraging data analysis and Machine Learning (ML) to analyze and predict the existence of potential cyber-threats. By harnessing the

Små regulatoriska molekyler i vårt blod Sedan det mänskliga genomet kartlades i början av 2000-talet har stora upptäckter gjorts och teknikutvecklingen har gått fort. Dagens sekvenseringsmaskiner är kraftfulla och kan sekvensera hela det mänskliga genomet på bara två dagar. I mitt masterarbete har jag undersökt små korta RNA-molekyler i mänskligt blod. Denna typ av molekyler är mycket lovande somAbstract In recent years focused research aimed at finding new specific and sensitive biomarkers for detection, classification and, monitoring of human cancers has been ongoing. MicroRNAs (miRNAs) are small, 19-24 nucleotides, noncoding RNAs that are stably expressed in body fluids such as blood. These circulating RNAs have shown great promise as biomarkers, because the unique expression patterns

The purpose of this bachelor ́s thesis is to make a comparison between the two measurements of credit risk ”Distance to default” with a modified Merton model and credit ratings from Standard & Poor ́s. The thesis investigates how well the measures agree with one another by using Spearman ́s rank correlation coefficient. By doing this the thesis is meant to provide the reader with an idea of wh

I kölvattnet till coronaviruspandemin har vaccinfrågan aktualiserats och hamnat högt på den mediala dagordningen. Det vetenskapliga paradigmet att vaccin är nyttigt och nödvändigt för folkhälsan blir idag utmanat av så kallade vaccinmotståndare. SVT Dokument inifråns dokumentärfilm Vaccinkrigarna gör anspråk på att korrekt skildra dessa vaccinmotståndare. Frågans polariserade karaktär väcker dock

Öresundsregionens skatteavtal har under en längre tid varit föremål för diskussioner och kritik. Skatteavtalet mellan Danmark och Sverige genomgick större förändringar år 1996 och år 2003. Dessa avtal har fått stora konsekvenser för flera olika berörda parter, vilket väckt debatten kring avtalet som en policy. Genom att undersöka policyprocessen som lett fram till hur avtalen är utformade idag sam

For more than 40 years the case-law of the European Court of Justice has been developing the principle of prohibition of abuse of law in the European Union. However, in the sphere of value-added tax, the principle was invoked by the Court for the first time in 2006 in the landmark case Halifax, creating a tension between this emerging principle and the principle of legal certainty observed and pro

Haematopoietic stem cells are the source of all blood components including T-cells. When the T-cell programme is initiated in these cells, the expression of T-cell associated genes such as TCF7 is up-regulated, while genes opposing this fate are turned off. Subsequently, epigenetic marks on the gene BCL11B and its regulatory elements, disabling the expression of the gene, are removed and the trans

Purpose Our purpose is to increase the understanding of an organization’s change process by interpreting organizational members’ lived experience during a change process where messages are being communicated ambiguously. We will draw on Weick’s theoretical framework of sensemaking in order to analyze the effects of top managers’ strategic ambiguity. We further aim to contribute to academia by addr

This study examined how staff at residential care homes (HVB) in Sweden work to strengthen clients' independence in preparation for life after institutional care, as well as the significance of the relationship between staff and client. Young people leaving residential care are a vulnerable group due to the absence of a secure social network and insufficient treatment for past behavioural issu

Decision-support systems based on artificial intelligence (AI) are increasingly implemented in everyday societal contexts, including high-stakes domains such as finance, medicine, and law. While these systems play an expanding role in shaping important decisions under uncertainty, a fundamental question concerns how algorithmic advice affects the behavior of human decision-makers. Despite this, mo

In a murine model of platelet alloimmunization, we examined the definitive role that mononuclear cells (MC) have in modulating platelet immunity by using platelets from severe combined immunodeficient (SCID) mice. CB.17 (H-2(d)) SCID or BALB/c (H-2(d)) mouse platelets were transfused weekly into fully allogeneic CBA (H-2(k)) mice and antidonor antibodies measured by flow cytometry. MC levels in BA

Drell-Yan pair production off nuclei is an ideal tool to test the cold nuclear effects occurring before a hard collision since no interaction in the final state is expected, neither energy loss or absorption. We present for the first time a comprehensive study of the nucleus-to-nucleon production ratio (the nuclear modification factor) within the color dipole approach using the Green function form

We study the initial-state interactions (non-coherence) and nuclear shadowing (coherence) effects in the Drell-Yan pair production process in p+Pb collisions at the LHC energies. The analysis of the nuclear suppression, RpA < 1, has been performed in the color dipole approach in the large coherence length approximation. The Z0 boson contribution relevant at large dilepton invariant masses has been

Different starchy foods are frequently consumed in the Mexican diet. Some of them were developed by Pre-Columbian Mesoamerican civilizations. Until today, common beans (Phaseolus vulgaris), tortillas made with maize (Zea mays) and related maize-based products are some of the main staple foods. Additionally, wheat-based foods are also important starch sources, incorporated in different dishes. This