Popular Abstract in Swedish Synkrotronstrålning genereras när laddade partiklar som färdas med relativistiska hastigheter böjs av i ett magnetfält. Under accelerationen som böjningen utgör genereras synkrotronstrålning i en smal kon i partikelns framåtriktning. Denna fotonstrålning är intensiv och utgör en användbar prob inom materialforskningen. Genom att belysa material med synkrotronstrålningenWithin research, synchrotron radiation is a highly useful probe for the study of materials, their properties and structures. Currently, no other radiation source allows the combination of high intensity and short wavelengths. The 3rd generation light sources currently in use for the production of synchrotron radiation are however considerable investments: for already existing facilities this makes

Excitation of the chassis enables single-antenna terminals to achieve good bandwidth and radiation performance, due to the entire chassis being utilized as the main radiator. In contrast, the same chassis excitation phenomenon complicates the design of multiple antennas for MIMO applications, since the same characteristic mode of the chassis may be effectively excited by more than one antenna, lea

Building on the view of massive modularity, a number of generalized assumptions lead to an entirely new concept of functional brain modules. In contrast to the nerve centers usually considered to be active in the brain, these modules, called symbions, are non-localized, non-hierarchical, and based on subcellular molecular mechanisms rather than on neurons. They act according to local rules that ma

Background and purpose The effect of oral snuff on bone healing is virtually unknown. In vitro data have indicated that delay in bone healing in smokers may be the result of components of smoke other than nicotine. We compared the time for bone healing after high tibial osteotomy in snuffers, smokers, and in control subjects who did not use snuff or cigarettes. Patients and methods 175 male patien

BACKGROUND: As rheumatoid arthritis (RA) occurs more often in women than in men, it has been suggested that reproductive hormones may play an important role in the pathogenesis.METHODS: Between 1991 and 1996, 30 447 subjects (18 326 women) were included in a community-based health survey. Information on female hormonal changes and stress-related factors was obtained using a self-administered quest

Purpose: Resident microglial cells normally do not express sialoadhesin (a sialic acid binding receptor), whereas recruited inflammatory macrophages have been shown to do so. The expression of sialoadhesin was examined here in the course of photoreceptor cell degeneration and following transplantation. Methods: Sialoadhesin expression was analyzed in retinas of rd1 and rds mice. For transplantatio

BACKGROUND:: Hypnotic benzodiazepine receptor agonists (HBRAs; zolpidem, zopiclone, and zaleplon) are used in the treatment of insomnia. Little is known about the safety of HBRAs during pregnancy. METHODS:: Data from the Swedish Medical Birth Registry from July 1, 1995, up to 2007 were used to identify 1318 women who reported the use of HBRAs in early pregnancy. They gave birth to 1341 infants. Ma

Även om Gösta Werner (1908-2009) aldrig var någon centralgestalt inom den svenska experimentfilmen, likt Pontus Hultén eller Peter Weiss, gjorde han starkt avtryck litegrann från sidan. Under närmare nio decennier närde Werner en självreflexiv inställning till filmmediet i rollen som filmstudioordförande, redaktör, filmskapare, föreningsman och forskare och det är i synnerhet bredden på hans engag