Describes use of the quantum-beat method to study hyperfine structure in the 5 2 P 3/2 and 6 2 P 3/2 states of 23 Na. A pulsed dye laser, frequency-doubled into the UV region, was used to excite sodium atoms abruptly in a beam. The fluorescent light was recorded with a fast transient digitiser, interfaced to a micro-computer. Theoretical calculations using many-body perturbation theory were perfor

Experiments performed with the high contrast 0.7 J, 35 fs Ti:Sapphire laser at the Lund Laser Centre focused into a supersonic helium gas jet have demonstrated the production of quasi-monoenergetic electron beams with energies up to 150 MeV. The beam is a result of controlled wavebreaking of a wakefield generated by the relativistically channeled laser beam. Under the best conditions of laser ener

The Lewis (Le) blood group antigens are a set of fucosylated glycan structures. They are present as N- and O-linked structures on glycoproteins and as glycolipid-based structures on cell surfaces. Depending on the exact structure, the Lewis group is divided into four subgroups; Lea, Leb, Lex and Ley. Lex and Lea can further be sialylated and/or sulfonated. Among these, Lex has been found to be imp

THERE WAS A TIME when many philosophers agreed that metaphysics was dead. Anyone aquatinted with the works of D.H. Mellor knows that the subject is alive and well. Two young philosophers who are familiar with his work, Anna-Sofia Maurin and Johannes Persson, met him in Cambrige for an interview.

Investigations over two major tectonic zones in the Hallandsås Horst, Southern Sweden were carried out in connection with a railway tunnelling project. A combination of resistivity imaging, core drilling and geophysical logging was found to provide a good overview of the variation in rock quality and detailed information on the engineering geological characteristics and genesis of the strata. Resi

This paper deals with the considerable membership shifts between the Swedish union confederations LO (blue-collar), TCO (white-collar) and Saco (white-collar), but above all it is about the rising share of union members in occupational/professional unions in the last few decades. This development corresponds to Saco's increased share of union members (8 per cent in 1990, 15 per cent in 2008). Also

European renewable energy policy has gone through a remarkable development over the last few years. It has moved from being a predominantly national-level concern with a focus on environmental issues to a top European policy agenda item where security of supply and competitiveness concerns figure with equal prominence. In 2007 and 2008 EU established a very forceful policy framework with ambitiou

Soft Magnetic Composites (SMC) based on iron powder have a strong potential for improving both the performance and the manufacturing of various electromagnetic components and devices, such as inductors, induction heaters and electrical machines. A new casting or moulding method we have developed makes use of a modified composite, termed SM2C, or soft magnetic mouldable composite. Use of it makes i