Sökresultat
Filtrera
Filtyp
Din sökning på "*" gav 533737 sökträffar
Activity Report: Automatic Control 2004
Present and past : ceramics and homesteads : an ethnoarchaeological investigation in the Buhera district, Zimbabwe
On the Solution of the Stationary Riccati Equation by Integration : Choice of Steplength
Acute changes in cerebral oxygenation and cerebral blood volume in preterm infants during surfactant treatment
Following administration of surfactant a marked depression in aEEG activity occurs for about 10 minutes; the mechanism of this depression is unknown. In view of this, twenty-nine preterm infants were investigated with near infrared spectroscopy (NIRS) to evaluate rapid changes in total cerebral haemoglobin concentration and cerebral oxyhaemoglobin concentration during rescue treatment with natural
Fat feeding impairs glycogen synthase activity in mice without effects on its gene expression.
Hygroscopic Behaviour of Flue Gas Particles Emitted from a 1.5 MW Biomass Fired Grate Boiler
X-ray-emission-threshold-electron coincidence spectroscopy
Using a penetration-field threshold photoelectron (TPE) analyzer and efficient photon detectors X-ray-emission-threshold-electron coincidence (XETECO) spectroscopy has been developed to a point where peak shape analysis becomes meaningful. The spectra can, on the present level of accuracy, be interpreted as conventional TPE spectra free from post collision interaction effects. For the neon atom an
Identification and localization of retinal cystatin C
PURPOSE. Cystatin C is a mammalian cysteine protease inhibitor, synthesized in various amounts by many kinds of cells and appearing in most body fluids. There are reports that it may be synthesized in the mammalian retina and that a cysteine protease inhibitor may influence the degradation of photoreceptor outer segment proteins. In the current study cystatin C was identified, quantitated, and loc
Desensitisation as a means of preventing untoward reactions to ionic contrast media
Patients with a previous history of anaphylactic reactions to ionic iodinated contrast media were desensitised before a second radiologic examination was performed. The tolerance to the contrast medium was raised by repeated intravenous injections in increasing doses and concentrations. No serious side effects were noted when the examinations with contrast medium was repeated within a few days aft
A norbislabdane and other labdanes from Aframomum sulcatum
Extracts of the seeds of Aframomum sulcatum (Oliv. & Hanb) K. Schum (Zingiberaceae) yielded a novel norbislabdane derivative, sulcanal (1) and the new labdane (12E)-8beta,17-epoxy-11-hydroxy-12-labden-15.16-dial-11,15-hemiacetal (2) (as a 1:1 C-15 epimeric mixture), along with known labdane diterpenes.
Increase of Biogas Production at Wastewater Treatment Plants Addition of urban organic waste and pre-treatment of sludge
Popular Abstract in Swedish Organiskt avfall utgör ett problem men är samtidigt en resurs med dess innehåll av näringsämnen och energi. Ett sätt att ta om hand organiskt avfall är att bryta ned det anaerobt genom s.k. rötning. Det organiska materialet reduceras då samtidigt som biogas produceras. Biogas består till största delen av metan som är energirikt och kan ersätta fossila bränslen vid prodAnaerobic digestion of organic matter results in the production of biogas, which can be used to replace fossil fuels. There is potential for increased biogas production at wastewater treatment plants by digesting urban organic waste either separately or together with the sludge. Biogas production could also be increased by sludge pre-treatment. The objective of this work was to evaluate the poten
Determination of heat loss from the feet and insulation of the footwear
This study compared the methods of determining the footwear insulation on human subjects and the thermal foot model. Another purpose was to find out minimal number of measurement points on human foot that is needed for insulation calculation. Bare foot was tested at three ambient temperatures on 6 subjects. Three types of footwear were tested on 2 subjects. The mean insulation for bare foot obtain
In vivo testing of the protection provided by non-latex gloves against a 2-hydroxyethyl methacrylate-containing acetone-based dentin-bonding product
In dentistry, allergic contact dermatitis to acrylates and allergic contact urticaria to latex are important occupational hazards. There is a need to identify non-latex gloves which are suitable for dental work but at the same time provide adequate protection against acrylate monomers. In a previous study, a new open-chamber system was used for testing the in vivo protection of 6 different gloves
Novel gamma-carboxyglutamic acid-containing peptides from the venom of Conus textile
The cone snail is the only invertebrate system in which the vitamin K-dependent carboxylase (or gamma-carboxylase) and its product gamma-carboxyglutamic acid (Gla) have been identified. It remains the sole source of structural information of invertebrate gamma-carboxylase substrates. Four novel Gla-containing peptides were purified from the venom of Conus textile and characterized using biochemica
Distribution of iodine 125-labeled alpha1-microglobulin in rats after intravenous injection
The 28-kd plasma protein alpha(1)-microglobulin is found in the blood of mammals and fish in a free, monomeric form and as high-molecular-weight complexes with molecular masses above 200 kd. In this study, iodine 125-labeled free and high-molecular weight rat alpha(1)-microglobulin (a mixture of alpha(1)-microglobulin/alpha(1)-inhibitor-3 and alpha(1)-microglobulin/fibronectin complexes) were inje
Evaluating measurements with MATLAB : a doctoral student's course at Building Materials, Lund University, Sweden
Lars Ahlins väg till författarskapet.
Channel models for ultrawideband personal area networks
This article describes the modeling of ultra-wideband wireless propagation channels, especially for the simulation of personal area networks. The IEEE 802.15.3a standards task group has established a standard channel model to be used for the evaluation of PAN physical layer proposals. We discuss the standard model, the measurements that form its basis, and the possibilities for future improvements
Modelling steam drying of a single porous ceramic sphere: Experiments and simulations
In order to investigate and describe the drying kinetics occurring in a porous material during superheated steam drying, a model was developed based on the fundamental transport equations for mass and heat. The driving forces in the model are gradients of moisture, temperature and pressure. The transport coefficients employed were either measured experimentally or were derived theoretically from t