Sökresultat
Filtrera
Filtyp
Din sökning på "*" gav 528149 sökträffar
Sant eller falskt fynd? Tillämpning av bayesianska principer kan förbättra bedömningen
Utilisation of antenatal care by country of birth in a multi-ethnic population: a four-year community-based study in Malmo, Sweden
Background. The aim of this study was to investigate differences in use of antenatal care in a multi-ethnic population in Malmo, Sweden, over a 4-year period. Age, parity, cohabiting status, use of an interpreter, and tobacco-use were examined to assess the potential effects of confounding factors. Methods. A 4-year (2000-2003) retrospective community-based register study was performed. Low-risk s
Intraobserver and interobserver reproducibility of three-dimensional gray-scale and power Doppler ultrasound examinations of the cervix in pregnant women.
Electron transfer from cytochrome b559 and tyrosineD to the S2 and S3 states of the water oxidizing complex in photosystem II
We have investigated the electron transfer from reduced tyrosine YD (YDred) and cytochrome b559 to the S2 and S3 states of the water oxidizing complex (WOC) in Photosystem II. The EPR signal of oxidized cyt b559, the S2 state multiline EPR signal and the EPR signal from YD@? were measured to follow the electron transfer to the S2 and S3 states at 245 and 275 K. The majority of the S2 centers was r
Design and performance of the S6 calorimeter
Predicting spontaneous termination of atrial fibrillation with time-frequency information
Our approach to predicting spontaneous termination of atrial fibrillation (AF) is based on parameters derived from the time-frequency distribution of the residual ECG signal, resulting from spatiotemporal cancellation of QRST complexes. Each consecutive, logarithmically scaled spectrum of the time-frequency distribution of the residual ECG is modeled as a frequency shifted and amplitude scaled ver
Ungdomars sexualitet - attityder och erfarenheter. Avsnitt: Sexuell exploatering. Att sälja sex mot ersättning/pengar
The paranasal sinuses as reservoirs for nitric oxide.
Internal water molecules and magnetic relaxation in agarose gels
Agarose gels have long been known to produce exceptionally large enhancements of the water H-1 and H-2 magnetic relaxation rates. The molecular basis for this effect has not been clearly established, despite its potential importance for a wide range of applications of agarose gels, including their use as biological tissue models in magnetic resonance imaging. To resolve this issue, we have measure
Stochastic Modeling and Optimization under Uncertainty of a Hydro Power System
Electricity bought and sold on the deregulated Nordic power market is dominated by hydro power. However, hydro power generation is restricted by the amount of water in reservoirs. The inflows to these reservoirs show a yearly cycle and seasonal planning of the production is necessary. Seasonal planning up to 1.5 years for a power producer in a hydro-thermal system with a regulated river is consid
A Short Study on Implementation of Controllers
Contrast-medium-induced nephropathy correlated to the ratio between dose in gram iodine and estimated GFR in ml/min
Purpose: To suggest a more precise tool when assessing the risk of contrast-medium-induced nephropathy (CIN), i.e. the ratio between contrast medium (CM) dose expressed in grams of iodine (g-I) and estimated glomerular filtration rate in ml/min (eGFR; based on equations using serum-creatinine (s-Cr), weight, height, age, and/or sex), here named I-dose/GFR ratio. Material and Methods: A Medline sea
No title
Proceeding from the assumption that metaphors as well as pictures are iconic signs, the present contribution studies what happens when metaphors occur in figurative pictures. The author distinguishes between primary iconicity, the recognition of which is a condition for the categorization of an object as a sign, and secondary iconicity, which is perceived only after an object has been categorized
Methods to measure and predict the transfer function size dependence of individual DMAs
In this study of the transfer function of copies of the Vienna-type differential mobility analyser (DMA) it was found that three, supposedly identical, DMAs exhibited distinct differences with respect to the width of the transfer function. This means that the transfer function of a DMA needs to be determined on an individual basis in order to obtain accurate results from DMA measurements. The size
A numerical study of the shear-strength-predicting capabilities of test specimens for wood-adhesive bonds
The sensitivity to geometrical imperfections of various test methods for wood-adhesive bonds was investigated using nonlinear finite element analysis. The adhesive layers in the specimens were modelled using a nonlinear softening, fracture mechanics model. The specimen types corresponded to the standards according to ASTM-D4680, ASTM-D905, EN-302-1 and a modified version of the ASTM-D3535 specimen
The sensitivity of nonlinear harmonic generation to electron beam quality in free electron lasers
The generation of harmonics through a nonlinear mechanism driven by bunching at the fundamental has sparked interest as a path toward enhancing and extending the usefulness of an X-ray free-electron laser (FEL) facility. The sensitivity of the nonlinear harmonic generation to undulator imperfections, electron beam energy spread, peak current, and emittance is important in an evaluation of the proc
Relation of aortic root dilatation and age in Marfan's syndrome
Aims The main aim of this study was to describe the age at which pathological aortic root dilation occurs in patients with Marfan's syndrome (MFS). Methods and results A total of 160 patients with MFS attending a regional cardiac centre were reviewed retrospectively. Dilation of the ascending aorta was diagnosed by comparing the maximum aortic sinus measurement with control data from the literatur
Adding formoterol to budesonide in moderate asthma--health economic results from the FACET study
The FACET (Formoterol and Corticosteroid Establishing Therapy) study established that there is a clear clinical benefit in adding formoterol to budesonide therapy in patients who have persistent symptoms of asthma despite treatment with low to moderate doses of an inhaled corticosteroid. We combined the clinical results from the FACET study with an expert survey on average resource use in connecti
Development of gene therapy for hematopoietic stem cells using lentiviral vectors.
Lentiviral vectors are promising tools for the development of gene therapy since they can transduce both quiescent and dividing target cells. Lentiviral vectors may be particularly promising gene delivery tools for hematopoietic stem cells since these target cells tend to be quiescent and are therefore difficult target cells for vectors that require dividing targets. Human hematopoietic stem cells