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Swirling lean premixed flames are of practical relevance due to their potential for low nitric oxide (NOx) emissions. Unfortunately, these flames have various drawbacks. One critical attribute is the possibility for flashback of the reacting flow into the nozzle. Advanced numerical simulations should be able in the future to predict the transition from stable flames to flashback. For a better unde
The influence of temperature on cost and energy consumption during nanofiltration has been evaluated. The effect of temperature on pressure drop, fouling, concentration polarisation and changes in the membrane performance were evaluated experimentally and theoretically. Nanofiltration experiments using pure solutions and wastewater from the meat industry were performed at 25 and 55 °C with an Alfa
Aims: Network for Pharmacoepidemiology (NEPI) Antidiabetes Study-Eye is a randomized placebo-controlled Swedish trial investigating if treatment with sulphonylurea, in addition to dietary regulation and increased exercise, delays the development of retinopathy in subjects with impaired fasting glucose (IFG). Methods: Subjects were surveyed in primary care with repeated fasting blood glucose measu
The stellar initial mass function at high redshift is an important defining property of the first stellar systems to form and may also play a role in various dark matter problems. We here determine the faint stellar luminosity function in an apparently dark-matter-dominated external galaxy in which the stars formed at high redshift. The Ursa Minor dwarf spheroidal galaxy is a system with a particu
Popular Abstract in Swedish Kan immunförsvaret orsaka ledsjukdomar? Ett väl fungerande immunsystem är en förutsättning för att kroppen ska kunna bekämpa diverse sjukdomar orsakade av t. ex. virus och bakterier. En grundläggande egenskap hos immunsystemet är dess förmåga att kunna skilja på vad som är kroppens egna celler och molekyler och vad som är främmande. Man tror att vissa sjukdomar, så kalCollagen-induced arthritis (CIA) is a mouse model for rheumatoid arthritis, in which autoimmunity is induced by immunization with type II collagen (CII), a cartilage-specific protein. In the present work, alpha/beta T cells were shown to be required for CIA and for the production of anti-CII IgG antibodies, whereas gamma/delta T cells were neither necessary nor sufficient for development of CIA. A
Popular Abstract in Swedish Att bedöma välbefinnande hos patienter med mag/tarmcancer Avhandlingen handlar om undernäring, beroende/oberoende i det dagliga livet och uppfattningar om hälsorelaterad livskvalitet hos patienter som opereras pga cancer i mag/tarmkanalen. Enligt journaldokumentation hos 45 patienter som opererades 1985-89, för cancer i bukspottkörteln, hade patienterna ett försämrat nThe aim was to study some aspects of patients´ well-being, related to nutrition, activities of daily living and health related quality of life, when undergoing major gastrointestinal cancer surgery. Chart documentations (N=45) of patients undergoing subtotal pancreatectomy were studied, and showed the patients' well-being to be affected, although it was not possible to fully evaluate the results o
Objective. Transforming growth factor 13 (TGF)3) plays a key role in the onset and resolution of autoimmune diseases and chronic inflammation. The aim of this study was to delineate the precise function of TGF beta signaling in salivary gland inflammation. Methods. We impaired TGF beta signaling in mouse salivary glands by conditionally inactivating expression of TGF beta receptor type I (TGF beta
Cubozoans, or box jellyfish, differ from all other cnidarians by an active fish-like behaviour and an elaborate sensory apparatus(1,2). Each of the four sides of the animal carries a conspicuous sensory club ( the rhopalium), which has evolved into a bizarre cluster of different eyes(3). Two of the eyes on each rhopalium have long been known to resemble eyes of higher animals, but the function and
Behaviour management problems (BMP) are common among children (4-12%) and the prevalence seems to be rising. Persistent antisocial behaviour often leads to poor long-term psychosocial adjustment. Structured parent-training programmes have proven to be the most effective way of treating BMP in young children. The Incredible Years Series (IYS), which is a manual-based programme, was introduced in Sw
This article outlines laboratory and full-scale studies on fire resistance of SCC. For this purpose 40 pre-stressed columns and 140 cylinders of concrete were subjected to compressive loading at high temperature. The SCC included water-binder ratios, w/b, between 0.40 and 0.70 and large amount limestone powder. Comparison was done with vibrated concrete, VC, with the same w/b. Mix proportions were
It is well known that the interaction of polyelectrolytes with oppositely charged surfactants leads to an associative phase separation; however, the phase behavior of DNA and oppositely charged surfactants is more strongly associative than observed in other systems. A precipitate is formed with very low amounts of surfactant and DNA. DNA compaction is a general phenomenon in the presence of multiv
Early erythroblasts from patients with refractory anemia (RA) and RA with ringed sideroblasts (RARS) show constitutive mitochondrial release of cytochrome c. Moreover, mature erythroblasts in RARS, but not in RA, display aberrant accumulation of mitochondrial ferritin (MtF). We analyzed cytochrome c release, MtF expression, and gene expression during erythrold differentiation in bone marrow cells
The detailed mechanisms which can explain the inherent radiosensitivity of salivary glands remain to be elucidated. Although DNA is the most plausible critical target for the lethal effects of irradiation, interactions with other constituents, such as cell membrane and neuropeptides, have been suggested to cause important physiological changes. Moreover, mast cells seem to be closely linked to rad
The angular pattern of scattered synchrotron x-ray radiation has been used to measure the composition of molecules and nanometer-sized particles in flames. The measured patterns were compared with patterns obtained from calculations for different species compositions. After ensuring that the calculations could reproduce the experiments for air and for ethylene flames under two different combustion
Purpose: Photodynamic therapy utilising delta-aminoleuvlinic acid-induced protoporphyrin IX photosensitisation, was evaluated as a treatment modality for nonmelanoma skin malignancies of the eyelids and the periocular skin, Methods: Photodynamic therapy with laser light at 635 nm was performed in 13 patients with 19 basal cell carcinomas and one patient with 3 cutaneous T-cell lymphoma lesions. A
Popular Abstract in Swedish Populärvetenskaplig sammanfattning av avhandlingen "Invading Herbivory. Effects of the Golden Apple Snail (Pomacea canaliculata) in Asian wetlands". 1980 förde några affärsmän ett okänt antal individer av den sydamerikanska vattensnäckan Pomacea canaliculata till Taiwan. Snäckorna skulle odlas i dammar och säljas som människoföda på marknader i Asien och överskottet skThe South American golden apple snail (Pomacea canaliculata) was intentionally introduced to aquacultures in South East Asia to produce snails for human consumption, but the aquatic snails soon escaped and started to consume large amounts of rice seedlings. The aim of this thesis was to quantify the effects of this invasive herbivore on aquatic plants in natural wetlands since previous research h
Conclusion: The rich supply of nerve fibres containing neurotransmitters, particularly those containing SP and CGRP, is suggested to be a prerequisite for the recognition of chemical irritants as part of a chemical sense. Objective: The present study was designed to examine the distribution of different neurotransmitter candidates in the vomeronasal organ (VNO) of rats. Materials and methods: The
The small heat shock proteins (sHsps) possess a chaperone-like activity which prevents aggregation of other proteins during transient heat or oxidative stress. The sHsps bind, onto their surface, molten globule forms of other proteins, thereby keeping them in a refolding competent state. In Hsp21, a chloroplast-located sHsp in all higher plants, there is a highly conserved region forming an amphip
