We suggest that the collapsing core of a massive rotating star may fragment to produce two or more compact objects. Their coalescence under gravitational radiation gives the resulting black hole or neutron star a significant kick velocity, which may explain those observed in pulsars. A gamma-ray burst can result only when this kick is small. Thus, only a small fraction of core-collapse supernovae

Popular Abstract in Swedish Sjukdomar hos äldre har ofta annan sjukdomsbild än motsvarande sjukdom hos medelålders och yngre. Till exempel är symtomen är ofta mindre tydliga, äldre har ofta flera samtidiga sjukdomar som ger en komplex sjukdomsbild, dessutom kan ett ”mindre allvarligt” sjukdomstillstånd föra med sig betydande besvär pga annan samtidig sjukdom. Detta gäller även för depressionssjukdStudies have found that depressive states in old age that do not fulfil the criteria for major depression are clinically important depressive states. These depressive states are common in primary care patients. Therefore, studies of late-life depression from a primary care perspective are needed. A depressive rating scale, Hopkins Symptom Checklist-25 (HSCL-25), was used in a community survey in 1

The distribution of wealth and income as revealed in Swedish registers and special studies.

Abstract Sweden has experienced a dramatic change from being a belligerent greatpower in the 17th and 18th centuries to becoming a peaceful small nation in the 19th and 20th centuries. The country has not been involved in war for over 180 years. Modern Sweden has established more or less peaceful relations with other countries. This thesis focuses on the 19th century as beeing an important period

Elongation factor G (EF-G) catalyses the translocation step in protein synthesis on the ribosome. During this event the antibiotic Fusidic acid (FA) binds to and irreversably inhibits the release of the EF-G:GDP complex from the ribosome. The difficulties to elucidate the exact binding mechanism of FA to the EF-G:GDP:ribosome complex are due to the fact that FA only binds to EF-G when the factor i

In 2019 the first neutrons will be fired at the ESS plant, at least to its present plan, located in the outskirts of Lund, the brightest neutron facility in the world. In the scientists’ self-images, this kind of high technology and international cooperative knowledge production is entitled Big Science or Global Science. The concept “technoscience” isn’t used. This chapter will discuss if the conc

This book examines gender and the dynamics of social change in contemporary Iran, documenting the changes in women's lives and showing how women now have become agents of social change rather than victims. Bringing together the detailed primary research of a number of eminent scholars working in Iran, this collection provides unique perspectives on the past decade in Iranian society and explores t

Popular Abstract in Swedish Inom jonstråleanalysen används en partikelstråle, vanligtvis av protoner eller alfapartiklar, med hög energi för undersökning av prov. Då dessa partiklar skjuts in i provet sker kollisioner, reaktioner eller annan form av växelverkan med elektroner och kärnor i provets inre. En del av dessa processer ger upphov till högenergetisk strålning som kan studeras med lämpliga In nuclear microprobe experiments, high resolution maps of the measured parameter, e.g. element- or mass distribution, in a sample can be produced with a variety of ion beam analytical techniques. The principle underlying all the techniques is that ions at MeV energies are used as projectiles to cause interactions with the target material. Because of the limited range of ions in matter, there is a