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Ring signatures enable a signer to sign a message on behalf of a group anonymously, without revealing her identity. Similarly, threshold ring signatures allow several signers to sign the same message on behalf of a group; while the combined signature reveals that some threshold t of the group members signed the message, it does not leak anything else about the signers’ identities. Anonymity is a c
Background: The Hawthorne Effect is the change in behaviour by subjects due to their awareness of being observed and is evident in both research and clinical settings as a result of various forms of observation. When the Hawthorne effect exists, it is short-lived, and likely leads to increased productivity, compliance, or adherence to standard protocols. This study is a qualitative component of an
BACKGROUND: Transportation noise is increasingly acknowledged as a cardiovascular risk factor, but the evidence base for an association with stroke is sparse. OBJECTIVE: We aimed to investigate the association between transportation noise and stroke incidence in a large Scandinavian population. METHODS: We harmonized and pooled data from nine Scandinavian cohorts (seven Swedish, two Danish), total
The Taymyr Peninsula constitutes the eastern delimitation of a possible Kara Sea basin ice sheet. The existence of such an ice sheet during the last global glacial maximum (LGM), i.e. during the Late Weichselian/Upper Zyryansk, is favoured by some Russian scientists. However, a growing number of studies point towards a more minimalistic view concerning the areal extent of Late Weichselian/Upper Zy
BACKGROUND: Sabellarids, also known as honeycomb or sandcastle worms, when building their tubes, produce chemical signals (free fatty acids) that are responsible for larval settlement and the formation of three-dimensional aggregations. The larval palps and the dorsal hump (becoming the median organ in adults) are presumed to participate in such a substrate selection during settlement. Notably, th
ABSTRACT: BACKGROUND: Today, no objective criteria exist to differentiate between individual primary tumors and intra- or intermammary dissemination respectively, in patients diagnosed with two or more synchronous breast cancers. To elucidate whether these tumors most likely arise through clonal expansion, or whether they represent individual primary tumors is of tumor biological interest and may
A positive image of a city or region attracts people, investors and enterprises. High-quality environment and local sustainability initiatives can be used for creating a positive image. A growing number of regions and cities around the world have in recent years attempted to exploit this opportunity through sustainable development strategies and innovative environmental initiatives combined with g
Popular Abstract in Swedish Huntingtons sjukdom (HS) är en ärftlig hjärnsjukdom utan botemedel. Den orsakas av en mutation i en gen som kallas huntingtin. Den klassas som en s.k. neurodegenerativ sjukdom, där man ser en förlust av neuroner i delar av hjärnan som kontrollerar kroppsrörelser. Detta resulterar i dansliknande rörelser (chorea) och det är även därför som HS ibland kallas för danssjukanHuntington’s disease (HD) is a fatal, hereditary disease for which there is no cure. It is caused by a mutation in a gene called huntingtin. HD is a so-called neurodegenerative disease, where there is a loss of neurons in areas of the brain that control body movements. This results in uncontrolled dance-like movements (chorea). Traditionally, research on HD has focused round the brain and what is
Denna uppsats avser att utreda hur anställningsskyddet för en professionell tränare ser ut. Syftet är att tydliggöra under vilka förutsättningar som en idrottsförening kan avsluta en tränares anställning. Särskilt fokus riktas mot frågan om det utifrån den nuvarande arbetsrättsliga lagstiftningen går att rättfärdiga en uppsägning av en tränare som sker med hänvisning till att denne inte presterat This thesis is aimed at describing the employment protection of sports coaches. The purpose is to clarify the conditions under which a sports association can terminate a coach's employment. Focus will be placed on the question of whether it, on the basis of the current labour law legislation in Sweden, is possible to justify the dismissal of a coach on the grounds that he or she has not achiev
Bumblebees are essential pollinators of wild and cultivated plants. They have experienced global declines over the last decades mainly due to habitat loss and fragmentation caused by agricultural intensification and land use changes. Haplodiploid hymenopterans with single-locus complementary sex determination (CSD), such as bees and bumblebees, are likely to experience partly different consequence
År 1994 såg det internationella samfundet passivt på medan uppskattnings-vis 800 000 människor förlorade sina liv i ett folkmord i Rwanda. Fem år senare inledde NATO en militär intervention i Kosovo med argumentet att det rörde sig om en "humanitär intervention". I båda fallen var säkerhetsrå-det oförmöget eller ovilligt att agera, trots att det var tänkt att agera som beskyddare av värlIn 1994 the international community stood idly by while an estimated 800.000 people lost their lives in a genocide in Rwanda. Five years later, NATO launched its military intervention in Kosovo, with the argument that it was a ‘humanitarian intervention’. In both cases, the Security Council was unable or unwilling to act although it was supposed to act as the protector of world peace and security.
T cells play an important role in the immune system where T cell receptors (TCR) identify foreign pathogens bound to major histocompability complex (MHC) molecules on antigen presenting cells (APCs). The detection of an antigen causes the T cell to trigger, which is an activation of the cell that results in a cellular immune response. This triggering process is not fully understood and studying th
Changing environmental conditions can generate physiological stress in birds, which subsequently can lead to the development of an altered diet. In addition to their energetic properties, dietary fatty acids (FAs) have been linked to several important physiological processes in birds, but still the knowledge of their effect on avian ecology is limited. In this study, I examine the fatty acid compo
Denna uppsats behandlar frågeställningar rörande romska barn, dvs. barn med minoritetsstatus i LVU-ärenden (lagen om vård av unga). Uppsatsens syfte är att studera hur rättsväsendet hanterar LVU-ärenden som berör romska barn och att undersöka om rättsväsendet vidtar speciella åtgärder för att garantera de romska barnen sina minoritetsrättigheter. Uppsatsens har även två delysften, att kortfattat bThis essay deals with issues concerning the Romani children, i.e. children with minority status in LVU cases (the law on the care of youth). The essays main purpose is to study how the legal system handles LVU cases involving Romani children and to investigate if the judiciary is taking special measures to ensure the Romani children their minority rights. The essay also aims to briefly describe th
This report incorporates a product development project, carried out in close connection with the Malmö-based biotechnology concern - Eurodiagnostica - that specializes in development of diagnostical tools for human diseases. The product, that is to be set under development by this project, is a faecal extraction tool. The device will enable the process of dissolving a specified volume of human fae
Background: Logistics and distribution of sold goods have traditionally been individually handled by each company in the Wanxingda Group with minimal coordination on group level. The strong relationships between the companies within the group and their close geographical proximity to each other indicate that there might exist potential for closer collaboration in this area. Furthermore, many of th
Niacinamide (NIA) is a widely used skincare ingredient with established benefits for skin barrier support, inflammation reduction, and dermal health. However, the mechanisms governing its transdermal delivery remain insufficiently understood, particularly regarding how formulation pH influences its permeation through the stratum corneum (SC). This study investigates how donor phase pH (5.0 vs. 7.4
Winter transportation is equally important as the summer transportation, or even more meaningful for countries, which are affected by the winter conditions. In this perspective, the focus of this paper is in the Baltic Sea, which is a sea, where some of its areas are frozen every year. During winter times, vessels may face heavy ice conditions and extreme weathers when navigating through ice fiel
ABSTRACT Author: Emmy Emanuelsson, Erika Jönsson Title: A qualitative study about how professionals reflect on learning-disabled parental capacity Supervisor: Alexandru Panican Assessor: Christina Erneling The purpose with this study was to explore how professionals in social work reflect on learning-disabled parental capacity from a child- and parent perspective. We have investigated two differen
Streams in Norrbotten County, near the coast of the Gulf of Bothnia in northern Sweden, suffer from recurrent episodes of low pH and high metal concentrations, which have resulted in fish kills and cadmium levels exceeding environmental quality standards defined in the EU Water Framework Directive. The cause of these acid episodes is that sulfide sediments, which are quite common under the highest
