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Laser-induced fluorescence (LIF) has been developed for visualization of fuel distribution fields in an operating spark-ignition (SI) engine. Since the standard research fuel iso-octane, does not yield a useful LIF signal a fluorescent additive was used. None of the commonly used seeds were found adequate. A seed not commonly used in this context, 3-pentanone, C2H5COC2H5, was chosen due to favorab
The thesis presents a numerical method developed by the author and its applications for computing the generated sound by an unsteady flow field and its propagation. The full equations of motion for compressible and unsteady flows describe both flow field and sound generation and propagation. It is assumed that the flow variables can be decomposed into semi-compressible / incompressible components
AIMS: Despite exclusion of left atrial thrombi by transoesophageal echocardiography, cardioversion-related thromboembolism has been reported in atrial fibrillation or flutter. To define a low-risk group for cardioversion without previous anticoagulation, patients were selected for immediate cardioversion if there were no thrombi, no echo spontaneous contrast and the outflow velocity of the left at
Popular Abstract in Swedish Bakgrund I Sverige erbjuds samtliga gravida kvinnor ett rutinultraljud vid 18-20 graviditetsveckor. Syftet med undersökningen är att fastställa antalet foster, uppskatta graviditetslängd samt granska fosteranatomin för att upptäcka eventuella missbildningar. En del missbildningar kan man se med ultraljud, men långtifrån alla. Att redan under graviditeten känna till om The aim was to evaluate first trimester nuchal translucency (NT) measurement for detection and risk assessment of fetal malformations and fetal loss. 39 572 pregnant women were randomised to either a routine ultrasound scan at 12-14 weeks including NT measurement or to a routine scan at 18-20 weeks. Prenatal diagnosis of major congenital heart malformations was compared between the two groups. In
Factor I (FI) is the major complement inhibitor that degrades Ob and C4b in the presence of cofactors such as factor H (FH) and membrane cofactor protein (MCP). Recently, mutations and polymorphisms in complement regulator molecules FH and MCP but also in FI have been associated with atypical hemolytic uremic syndrome (aHUS). HUS is a disorder characterized by hemolytic anemia, thrombocytopenia an
Biofuels are commonly stored in large stacks that may heat up and self-ignite from microbiological and chemical heat production. This paper shows how isothermal (heat conduction) calorimetry can be used to measure heat production rates of biofuels at relatively low temperatures close to where self-heating starts to become a problem. Measurements can be made to assess how the reaction rate is a fun
Popular Abstract in Swedish "Mötet mellan personal och patienter samt patienternas tillstånd. Effekter av klinisk grupphandledning till personal samt individuellt anpassad omvårdnad till patienter med demenssjukdomar" Avhandlingens övergripande syfte var att undersöka mötet mellan patienter och personal, patienternas tillstånd och beteende samt effekterna av individuellt planerad omvårdnad och klThe aim of thesis was to investigate the nurse-patient encounter in dementia care (n=9 patients), functional and cognitive ability, behaviours and mood of the patients as well as the reliability of the instruments used (n=75 nursing home patients). A further aim was to investigate the effects on the aspects mentioned above of a one-year controlled intervention (individually planned care and clinic
Difficulties in a family's psychosocial situation during the period of infancy are associated with mental problems and behavioural disorders in children. The aim of the study was to identify the extent and type of psychosocial factors in families with infants, including social aspects, mental problems and substance abuse as well as circumstances surrounding the birth. All infants born between Marc
The protection provided by poly(ethyleneimine) (PEI) to muscle lactate dehydrogenase (LDH) in metal-catalyzed oxidation (MCO) systems (CuSO(4) or FeCl(2) combined with H(2)O(2)) was studied, and comparisons were made with the chelators EDTA and desferal, respectively. The analytical chelating capacity of PEI was estimated to be around 1 mol Cu(2+)/10 mol ethyleneimine for all molecular weights of
Background. To evaluate the relationship between age and poor ovarian response to pregnancy and cancellation rate after IVF stimulation. Methods. Poor ovarian response was defined as <= 5 follicles at ovum pick up (OPU). Out of 1,706 consecutive OPUs performed during 2003/2004, 290 poor responders were identified. This cohort of poor responders was divided into two groups, 'older' and 'younger', w
The evolution of radiation-induced carbon-related defects in low temperature irradiated oxygen containing silicon has been studied by means of Fourier transform infrared absorption spectroscopy (FTIR) and deep level transient spectroscopy (DLTS). FTIR measurements have shown that annealing of interstitial carbon atom C-i, occurring in the temperature interval 260-300 K, results in a gradual appear
Studies published between 2001 and 2005 that utilise cryogenic transmission electron microscopy as a tool for investigating solutions containing DNA with or without amphiphiles present are reviewed. DNA or oligonucleotides form complexes with amphiphilic molecules such as lipids, so-called lipoplexes, and the structures and morphologies are excellent objects to study by cryogenic transmission elec
On film critic Robin Wood's work in the 1970s.
We consider a nontrivial symmetric periodic gravity wave on a current with nondecreasing vorticity. It is shown that if the surface profile is monotone between trough and crest, it is in fact strictly monotone. The result is valid for both finite and infinite depth.
OBJECTIVES: To evaluate the influence of residual beta-cell function on glucagon secretion and glucose counter-regulation following hypoglycaemia in type 1 diabetes. DESIGN AND SUBJECTS: The hormonal counter-regulatory responses to standardized insulin-induced hypoglycaemia were investigated, 18 patients with type 1 diabetes of long duration and 12 healthy subjects were investigated. Nine of the d
The article is devoted to investigation of the classes of functions belonging to the gaps between classes Pn+1 (I) and P, (I) of matrix monotone functions for full matrix algebras of successive dimensions. In this paper we address the problem of characterizing polynomials belonging to the gaps P-n(I) Pn+1 (I) for bounded intervals L We show that solution of this problem is closely linked to soluti
The present contribution focuses on the mathematical techniques used to solve steady state metabolic models for the case of an overdetermined system. Even when parts of the system are underdetermined it is possible to solve the model partially and obtain statistically meaningful results. This is illustrated with data gathered from a set of E. coli W3110.shik1 phosphate- or carbon-limited continuou
A simple, efficient, and flexible procedure for the synthesis of chiral, amphiphilic, and water-soluble macrocycles is reported. Acylation of p-xylylenediamine with N-Fmoc-protected glycine, -aspartic acid, -glutamic acid, and -arginine, followed by removal of Fmoc-groups, gave amino acid:p-xylylene conjugate diamines, which were converted to ten macrocycles via stepwise urea formation using p-nit
