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Visar resultat 1 - 5 av 6 avhandlingar som matchar ovanstående sökkriterier.

1. 1. Mapping the Landscape of Digital Game-Based Learning in Swedish Compulsory and Upper Secondary Schools : Opportunities and Challenges for Teachers

   Författare :Melinda Máthé; Harko Verhagen; Mats Wiklund; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; digital game-based learning; digital game-based teaching; digital games; education and games; Information Society; informationssamhället;

   Sammanfattning : Interest in the use of digital games in education has been increasing over the past few decades. Advocates argue that digital games are powerful learning tools with the potential to support increased motivational, cognitive, behavioural, affective, physiological and social outcomes. However, empirical evidence for their effectiveness is mixed. LÄS MER

3. 2. The phencyclidine model of schizophrenia : dysregulation of brain dopamine systems induced by NMDA receptor antagonists

   Författare :Jan M Mathé; Karolinska Institutet; Karolinska Institutet; []
   Nyckelord :phencyclidine; MK-801; CNQX; prazosin; tetrodotoxin; dopamine; neurotensin; ventral tegmental area; nucleus accumbens; medial prefrontal cortex;

   Sammanfattning : Non-competitive NMDA receptor antagonists, such as phencyclidine (PCP) and dizocilpine (MK-801) can even acutely induce a drug induced psychotic state which closely resembles schizophrenia. The midbrain dopamine (DA) neurons, which originate in the ventral tegmental area (VTA), are involved in motivational, attentional and cognitive processes, and have also been profoundly implicated in schizophrenia. LÄS MER

4. 3. P-glycoprotein and chiral antidepressant drugs : Pharmacokinetic, pharmacogenetic and toxicological aspects

   Författare :Louise Karlsson; Fredrik C. Kugelberg; Finn Bengtsson; Johan Ahlner; Aleksander A. Mathé; Linköpings universitet; []
   Nyckelord :;

   Sammanfattning : The blood-brain barrier (BBB) is formed by the capillary endothelial cells, joined together by tight junctions, with transporter proteins. BBB acts to regulate the brain concentrations of substances including many drugs. LÄS MER

5. 4. Spectral estimates for the magnetic Schrödinger operator and the Heisenberg Laplacian

   Författare :Anders Hansson; Ari Laptev; B Malcolm Brown; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; spectral theory; Schrödinger operator; magnetic field; Aharonov-Bohm; Lieb-Thirring; diamagnetic inequality; Heisenberg group; Heisenberg Laplacian; hypoelliptic; spektralteori; Schrödingeroperator; magnetfält; Aharonov-Bohm; Lieb-Thirring; diamagnetisk olikhet; Heisenberggrupp; Heisenberg-Laplace-operator; hypoelliptisk; MATHEMATICS; MATEMATIK;

   Sammanfattning : I denna avhandling, som omfattar fyra forskningsartiklar, betraktas två operatorer inom den matematiska fysiken. De båda tidigare artiklarna innehåller resultat för Schrödingeroperatorn med Aharonov-Bohm-magnetfält. LÄS MER

7. 5. Network Optimization of Evolving Mobile Systems with Presence of Interference Coupling

   Författare :Lei You; Di Yuan; Pierre Flener; Gabor Fodor; Uppsala universitet; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Resource optimization; load coupling; OFDMA; NOMA; Computer Science; Datavetenskap;

   Sammanfattning : The rapid development from 4G to 5G of mobile communications poses significant challenges in providing high rate and capacity, making it more crucial for efficient utilization of time-frequency resource via optimally configuring the network. Mathematical optimization serves as a powerful tool for addressing this type of problems. LÄS MER