The influence of pregnancy on bone mineral density (BMD) was evaluated by dual-energy X-ray absorptiometry (DXA) in 73 women (mean age 29 years, range 20-44 years) postpartum. Fifty-five age-matched women served as controls. The influence of lactation was evaluated in 65 of the delivered women who were followed with repeated measurements, a mean of 4.5 +/- 0.1 and 11.5 +/- 0.1 months after the del

Popular AbstractSociologen Niklas Luhmann är en av få samhällsvetare som kommit att utveckla en egen teori. Det har skett genom en vidareutveckling av systemteorin och med otaliga inspirationer från klassisk och modern sociologi, filosofi, rättsteori, kommunikationsteori, kognitionsforskning osv. Luhmanns vittomfattande skriftliga verk gör honom till en av de mest betydande sociologerna överhuvudtThis thesis is divided into two main parts. The first is an exposé of Niklas Luhmann's comprehensive sociological systems theory, including the basic tenets of the theory, its historical development and central concepts, and discussions. Systems theory is a theory about the distinction between system and environment. Within the framework of Luhmann's systems theory, one can discern three primary l

When analysing new types of sewage systems, knowledge is needed on the composition of the different wastewater fractions. The computer model URWARE, developed from the model ORWARE, is intended to analyse and compare different wastewater system structures, e.g. to compare wastewater systems where urine and/or faeces are source separated with conventional wastewater systems, where the different was

Identification of individuals at high risk of developing type 2 diabetes is a prerequisite for prevention of the disease. We therefore studied risk factors predicting type 2 diabetes in the Botnia Study in western Finland. A total of 2,115 nondiabetic individuals were prospectively followed with repeated oral glucose tolerance tests. After a median follow-up of 6 years, 127 (6%) subjects developed

The effect of cationic surfactant on the compaction of DNA both in bulk solution and on polystyrene particles has been studied by dynamic light scattering. DNA undergoes a transition from a semiflexible coil to a more compact globule in aqueous solution as a consequence of cationic surfactant binding. Thus the hydrodynamic radius of DNA decreases from 107 nm to about 50 nm in the presence of catio

The local structures of Ga(III) in aqueous oxalate and malonate complexes were studied by means of Ga K-edge EXAFS spectroscopy. Irrespective of the number and type of coordinated ligands, the EXAFS results showed very regular first coordination shells consisting of six oxygen atoms. Scattering paths from more distant atoms revealed that both oxalate and malonate form mononuclear chelate structure

The Earths magnetic field and celestial cues provide animals with compass information during migration.Inherited magnetic compass courses are selected based on the angle of inclination, making itdifficult to orient in the near vertical fields found at high geomagnetic latitudes. Orientation cage experimentswere performed at different sites in high Arctic Canada with adult and young white-crownedsp

The tau lepton lifetime has been measured with the e(+) e(-) --> tau(+) tau(-) events collected by the DELPHI detector at LEP in the years 1991 - 1995. Three different methods have been exploited, using both one-prong and three-prong tau decay channels. Two measurements have been made using events in which both taus decay to a single charged particle. Combining these measurements gave tau(tau) ( 1

Tailfat samples were collected from 56 platypuses, 38 male and 18 fernale in Tasmania. No statistically significant, nor apparent, differences between the sexes were found for tailfat lipid levels and DDT and its metabolites, Lindane and PCB concentrations in tailfat lipid. Apparently-but not statistically-significantly different levels of DDT and its metabolites, Lindane and PCB concentrations we

This thesis documented lake-level changes across Eurasia and made reconstructions of regional climates and atmospheric circulation patterns during the late Quaternary; analysed temporal signals in lake record; used lake data to improve pollen-based quantitative recostructions of climate; and compared lake data with simulated P-E fields from Atmospheric General Circulation (AGC) models. Lake record

Abstract is not available.

Popular Abstract in Swedish Alzheimers sjukdom och vaskulär demens är de vanligaste orsakerna till demens hos äldre, ett tillstånd som i takt med den ökande åldrade befolkningen kommer att innebära ett allt större lidande och en alltjämt ökande ekonomisk belastning. Direkta och indirekta kostnader för vård och omsorg av demenspatienter uppgår sannolikt till ca 40 miljarder kronor om året. Detta ärDementia is a state of permanent loss of cognitive function, most commonly affecting the elderly. With a rapidly growing aged population, the spectrum of disorders that lead to dementia is exerting an ever-increasing toll on patients, families and society alike. The most common dementing disorders are Alzheimer's disease and vascular dementia. Although Alzheimer's disease is very common and was de

To assess the age-related loss of muscle mass and to determine the mechanisms behind this aging atrophy, the muscle structure and fiber type composition have been estimated, using invasive and noninvasive techniques. Limb muscles from older men and women are 25-35% smaller and have significantly more fat and connective tissue than limb muscles from younger individuals. Comparisons of muscle biopsi