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Samhällets storskaliga digitalisering har inte bara påverkat människors vardag och yrkesliv, den har också påverkat undervisning och lärande på ett genomgripande plan – inte minst när det gäller det kunskapsbyggande som tar plats i skolor och klassrum, under ledning av lärare. Under de senaste decennierna har pappersbaserat material och laborationsutrustning ersatts av applikationer och digitala vThis thesis is about learning. It is about how younger students (6–12 years old) usethings on-screen (representations, feedback, or virtual characters) and how they handle digitalised learning environments. I have explored this subject using many perspectives and theories, not only focusing on handheld tools and physical or virtual materials, but also on the social interactions behind the screens,

In Sweden, Finland, Norway, and Denmark, the contact person intervention (CPI) is declared for children and youth in national legislation. The CPI is based on a relationship between the child and a volunteer adult who provides support to the child in need in different life situations. In this review, we summarise how the CPI within child welfare services has been studied and defined in four Nordic

Genetic variation at the 19q13.3 KLK locus is linked with prostate cancer susceptibility in men. The non-synonymous KLK3 single nucleotide polymorphism (SNP), rs17632542 (c.536 T > C; Ile163Thr-substitution in PSA) is associated with reduced prostate cancer risk, however, the functional relevance is unknown. Here, we identify that the SNP variant-induced change in PSA biochemical activity mediates

InBi(0 0 1) is formed epitaxially on InAs(1 1 1)-A by depositing Bi onto an In-rich surface. Angle-resolved photoemission measurements reveal topological electronic surface states, close to the M high symmetry point. This demonstrates a heteroepitaxial system entirely in the III–V family with topological electronic properties. InBi shows coexistence of Bi and In surface terminations, in contradict

We present a detailed depth-sensitive study of the evolution in correlated electron behavior from the surface of the prototypical correlated oxide, SrxCa1-xVO3, to its bulk. Photoemission measurements of varying surface sensitivity are employed to directly compare both the spectral weight and energetics of the correlated electron features, and resonant soft x-ray emission spectroscopy is used as a

(Ga,Mn)As is a model diluted ferromagnet system in which the atomic spins of Mn ions are ferromagnetically arranged due to the exchange interaction with valence band holes. An important tecchnological concern regarding this system has been approaches that might result in reduction of the density of Mn interstitial and increase in the content of Mn in order to make the system practically feasible.

Poor preoperative sleep quality and impaired sleep continuity may heighten acute postoperative pain intensity and increase analgesic consumption, with negative implications for recovery, mental and physical health. The main objective of the current review was to investigate the relationship between preoperative sleep disturbance and acute postoperative pain control. Four electronic databases were

This paper is concerned with the feasibility of the power flow in DC power grids with constant power loads. We introduce the notion of distance to infeasibility as a voltage stability index and robustness measure for power flow feasibility. In particular, we study the p-norm distance to infeasibility in the domain of the constant power loads, and show how this distance may be expressed as a mathem

Purpose: Childhood cancer survivors, in particular those treated with radiation therapy, are at high risk of long-term iatrogenic events. The prediction of risk of such events is mainly based on the knowledge of the radiation dose received to healthy organs and tissues during treatment of childhood cancer diagnosed decades ago. We aimed to set up a standardized organ dose table to help former pati

In this paper we provide an analytical solution to an H2 optimal control problem, that applies whenever the process corresponds to a uniformly damped network of masses and springs. The solution covers both stable and unstable systems, and illustrates analytically how damping affects the levels of achievable performance. Furthermore, the resulting optimal controllers can be synthesised using passiv

The aerobic oxidation of carbon monoxide to carbon dioxide is catalysed by the Mo/Cu-containing CO-dehydrogenase enzyme in the soil bacterium Oligotropha carboxidovorans, enabling the organism to grow on the small gas molecule as carbon and energy source. It was shown experimentally that silver can be substituted for copper in the active site of Mo/Cu CODH to yield a functional enzyme. In this stu

Grounded in the social cognitive theory, the main aim of this study is to explore the impact of telepresence, social presence, and emotional engagement on impulsive buying tendencies within the realm of travel live-streaming (TLS). To examine further, the moderating effect of guidance shopping was included. An online questionnaire was distributed to 332 live-streaming viewers from China, and the c