Popular Abstract in Swedish Att packa ryggsäcken och resa till tropikerna, till vad man ofta kallar ‘tredje världen’ för en längre tids vistelse anses ofta vara av avsevärd betydelse för en individs identitet och framtida liv. För många resenärer upplevs resan som ett sätt att ta kontroll över den egna tiden och rörelsen, en kontroll som betraktas som en bristvara i de miljöer resenärerna kommer fThis work addresses the phenomenon of long-term, so-called ‘independent’ travelling, or backpacking, often to destinations described as the ‘third world’. It regards backpacker journeys as arenas for identity work, for expressing individuality and a ‘strong character’. Rather than merely being a parenthetic detour in time and space a backpacker’s trip to the tropics can be understood as a creative

The possibility of using pervaporation for the recovery of natural aroma compounds in the food industry has been widely recognised. The aim of this study was to build a bridge between experimental studies of multi-component systems and potential applications of pervaporation in the food industry. Therefore, a novel process simulation of pervaporation has been developed for multi-component mixtures

Lying athwart both the temperate and subtropical zones, the Ning-Zhen Mountains are particularly prone to extreme floods in the summer months when cold fronts collide with the subtropics-derived warm airmasses. The Holocene flood deposits in the region may provide a long-term perspective on hydrographical change and its palaeoclimatic implications. Radiocarbon dates on carbonised wood preserved in

Recovery of electroencephalographic activity and somatosensory evoked responses was studied in paralyzed and lightly anesthetized (70% N2O) rats in which profound hypoglycemia had been induced by insulin administration. The duration of severe hypoglycemia was defined as the duration of a flat electroencephalogram (EEG) recording (5, 30, and 60 min, respectively) before restitution with glucose. Th

Aim: To explore whether the phrasing of the questions and the response alternatives would influence the answers to questions about legalisation of euthanasia. Methods: Results were compared from two different surveys in populations with similar characteristics. The alternatives "positive'', "negative'', and "don't know'' (first questionnaire) were replaced with an explanatory text, "no legal sanct

Objective: To assess the therapeutic effects of oral zileuton tablets combined with low-dose beclomethasone compared to doubling the dose of beclomethasone, in improving lung function and reducing asthma symptoms. Methods: Randomized, active-controt, double-blind, parallel, multi-center study of zileuton (400 or 600mg QID)+200 mu g beclomethasone dipropionate (BDP) BID versus ptacebo+BDP 400pg BID

Abstract is not available

The objective of the present investigation was to develop a technique to synthesize submicronic particles of Nb-doped strontium titanate with a homogeneous composition. This was achieved by a modified glycine-nitrate process, using Ti-lactate, Nb-oxalate, and Sr(NO3)(2) as starting materials. A combination of both citric acid and glycine was needed in order to integrate the useful features of both

Antibody evolution in vivo proceeds mainly by stepwise improvements, accomplished by single base pair substitutions. Lately, receptor revision, i.e. exchange of large parts of the V gene for another sequence, has been suggested to provide a complementary route for affinity maturation. By employing a receptor revision like evolution process in vitro using combinatorial libraries and phage display s

The role of photosynthetic pigments in the development of separation methods in biochemistry during the period 1900-1980 is described beginning with M. Tswett who introduced separation of chlorophylls and carotenoids on columns and coined the term chromatography in 1906. In Uppsala, T. Svedberg developed the ultracentrifuge in the 1920s. A. Tiselius improved electrophoresis in the 1930s and develo

This thesis explores the relationship between domestic political processes and interindustry variations in unilateral and multilateral trade policies. The literature on endogenous protection is extended to account for the potential importance of information flows, to explore the consequences of adapting the analyses to political systems which differ from the American kind, and to build a framework

The photoinduced excited-state processes in 1,1'-diethyl-2,2'-cyanine iodine are investigated using femtosecond time-resolved pump-probe spectroscopy. Using a broad range of probe wavelengths, the relaxation of the initially prepared excited-state wavepacket can be followed down to the sink region. The data directly visualize the directed downhill motion along the torsional reaction coordinate and

A new PCR kit (AMPLICOR CT/NG; Roche Diagnostic Systems, Inc., Branchburg, N.J.) was used as a screening tool for the detection of Chlamydia trachomatis and Neisseria gonorrhoeae in first-void urine (FVU) specimens from 3,340 asymptomatic women attending European health care units for contraceptive advice or pregnancy termination. All samples were kept frozen (-20 degrees C) prior to testing. Chla

The release of two compositionally different solutes from a composite gel composed of two different populations of microgel particles embedded in a single bulk gel matrix is described, showing the potential of the "plum-pudding gel" as a multifunctional platform for controlled surface release. One hydrophobic solute (pyrene) and one hydrophobic and charged solute (rhodamine 123) were chosen as the