Temporary agency work has come to the fore during recent years as the phenomenon in itself has become more frequent on many national labour markets. This thesis examines how, by means of labour law and collective bargaining, the balance between, on the one hand, the employers’ need for flexibility, and on the other hand, the work-force’s need for stability and continuity in the form of income and

Popular Abstract in Swedish Regleringen av esofagus och den nedre esofagussfinkterns motilitet har rönt intresse på grund av dess betydelse vid vissa sjukdoms-tillstånd såsom gastroesofageal reflux och akalasi. Den nedre esofagussfinktern har vidare använts som modell för farmakologiska och fysiologiska studier av viss typ av autonom neurotransmission, s k icke-adrenerg, icke-kolinerg (NANC) neuroThe inhibitory neuromuscular control of the human and cat lower oesophagus was investigated by morphological, functional, and biochemical methods. A supply of nerve fibres and myenteric cell bodies, containing nitric oxide synthase (NOS), haem oxygenase (HO)-2, vasoactive intestinal peptide (VIP), and pituitary adenylate cyclase activating peptide (PACAP) was observed. The highest density of nerve

This thesis analyzed the relationship between breastfeeding, nasopharyngeal colonization and acute otitis media (AOM) in children. Nasopharyngeal cultures were collected from 400 children and milk samples from their mothers in connection with the scheduled visits to well baby clinics at 1-3, 4-7 and 8-12 months of age, and episodes of AOM and URI were documented. The nasopharyngeal flora was acqui

Klimatkänslighet – ett viktigt begrepp Klimatkänsligheten definieras som den långsiktiga temperaturökning som blir resultatet av en fördubbling av mängden koldioxid i atmosfären. Även om definitionen hänvisar till en fördubbling av halten koldioxid i atmosfären, gäller den generellt även för en fördubbling av halten koldioxidekvivalenter, vilket är ett omräkningsmått som innefattar alla växthusgas

Popular Abstract in Swedish Organiskt kol och mikroorganismer har ofta en mycket hög spatiell variation i jorden. Dessutom är mikroorganismer ofta begränsade av mängden kol även om detta beror på den den relativa koncentrationen av kväve, fosfor och organiskt kol i systemet. Man kan dock anta att mikroorganismers biomassa och aktivitet kan samvariera med halten organiskt kol i jordar som har en föOrganic carbon and bacteria have a high variability at different scales in the soil, and organic carbon may be a limiting factor for growth of soil bacteria. Thus, it can be expected that these co-vary at different scales in the soil. In this thesis, I have studied the spatial interaction between soil bacteria and natural and contaminant (polycyclic aromatic hydrocarbon, PAH) organic carbon. The o

The observed high-spin states in 142Gd are interpreted as based on a triaxial nucleus rotating around the classically unfavored longest principal axis. For the first time such an interpretation is supported by experimental data including lifetimes which have been measured using DSAM with EUROBALL in the 114}Sn(32S,2p2n)142Gd reaction at 160~MeV.

The SIMATIC IT family of products from SIEMENS A&D AS MES, addresses the MES (Manufacturing Execution System) market. One of the products is explicitly aimed for manufacturing execution management.The ISA 95 standard is of highest relevance for products targeting this market since the standard addresses the Manufacturing Operations domain as well as its integration with the Business systems do

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The studied bump stop is a hollow folded polyurethane cylinder mounted around the damper rod in a MacPherson front wheel suspension, restricting the upward wheel displacement. It is a critical component for durability since the force transfer through the bump stop determines the vertical peak loads to the car body. In extreme load cases as driving over a curb, the bump stop is subjected to impact

The new era of safety related electronic systems in vehicles puts new demands on the manufacturer to prove reliability and safety of the systems. Standards that earlier have been used by the industry to prove compliance with demands on functional safety are difficult to implement for the automotive industry. Difficulties also arise when trying to prove immunity against electromagnetic disturbances

Structural investigations of compounds in the CsI-(Cd/Hg)I2 system have been performed by means of X-ray diffraction, thermogravimetric and calorimetric techniques. Crystals of the compounds studied were synthesized from aqueous solutions of CsI and CdI2/HgI2 by the slow evaporation of water. In total, the structure of ten compounds were determined by means of X-ray diffraction on single crystals,