Lärande över nätet innebär ett förändrat tänkande för både lärare och studenter. Med den lyckade fort- och vidareutbildningskursen medicinsk fysik för gymnasielärare som exempel, diskuteras i det följande lärandemodell, erfarenheter och faktorer som är viktiga för att nå framgång med en kurs. Det primära syftet med kursen är att ge fysiklärare bättre förutsättningar att undervisa fysik och teknik

Popular Abstract in Swedish När en organism utsätts för stress, t. ex. vid hög temperatur, starkt solljus, torka eller köld, produceras särskilda hjälpar-proteiner, s. k. ¨stress-proteiner¨. Syntesen av cellens normala proteiner stängs av och istället produceras bara stress-proteiner. Dessa stress-proteiner är till för att skydda andra protein som skadas under stress. De s. k. ¨värme-stress¨ proteA specific group of heat shock proteins, the so called small heat shock proteins (sHsps), exists in all organisms but are especially abundant in plants. The sHsps prevent aggregation of other proteins (substrate proteins) during transient heat and oxidative stress. Molten globule forms of the substrate proteins are kept in a re-folding competent state by binding onto the outer surface of the sHsp.

Popular Abstract in English 111-Indium is a radioactive isotope that can be chemically linked to different molecules. When this compound is given to patients is distributed heterogeneously within the structures that build up the testicle. Different parts of the so-called germ cells are sensitive to radiation in different ways. Therefore, if a radioisotope that send out electrons with low energies It is well known that the testicles are among the most radiosensitive tissue, and constitute an important critical target for both external and internal radiation during diagnostic and therapeutic use of radionuclides. In systemic radionuclide therapy where very high activities are administered, the testis may become a dose-limiting organ; often with a complex, non-uniform activity distribution an

Vehicle-to-vehicle (V2V) communications aim to enhance driver safety and traffic efficiency by using the recently designated frequency bands in the 5.9 GHz range in Europe. Due to the time-frequency selective fading behavior of the vehicular communication channel, multi-antenna techniques can provide enhanced link conditions by means of diversity processing. This paper highlights the integration o

This chapter starts with a brief review of research concerning work stress, coping, gender, and health. We also present results from a study which is part of a larger ongoing project: Collective stress and coping at work from a gender perspective. The study puts forth a complementary approach to the individualistic perspective by viewing coping as both an individual and a collective phenomenon. Th

This paper addresses multicarrier communications over the additive white Gaussian noise channel under a power spectral density (PSD) constraint. Depending on the shape of the PSD mask, straightforward power loading according to the waterfilling principle may yield poor throughput results. Several information processing techniques have been proposed to enhance the spectral properties of a multicarr

A reduced four-step scheme for Computational Fluid Dynamics (CFD) analysis is presented here in the context of industrial type laboratory combustor. The present scheme has been optimized for a syngas mixture consisting of 10% CH4, 22.5% CO and 67.5% H2 by volume, and for a methane-air mixture. The optimization of the global scheme is done by comparing with the detailed San Diego mechanism using pe