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3-Hydroxypropionic acid was isolated by bioactivity-guided fractionation of extracts obtained from submerged cultures of several endophytic fungi isolated from above-ground plant organs. This compound showed selective nematicidal activity against the plant-parasitic nematode Meloidogyne incognita with LD50 values of 12.5-15 mug/ml. Activity against the saprophytic Caenorhabditis elegans was fivefo
An improved ELISA method for the detection of Staphylococcal. Enterotoxin B (SEB) in protein A preparations is presented. Fab fragments were obtained by digestion with papain of anti-SEB IgG bound to SEB immobilized on Sepharose 4B. Anti-SEB and peroxidase-labeled Fab fragments from secondary antibodies were successfully used in a modified ELISA of SEB in protein A preparations. SEB-Sepharose was
Objective: To identify the reasons and their relative importance why medicines are returned to Swedish pharmacies unused. Setting: A random sample of the pharmacies in Sweden. Method: Interviews using a semi-structered interview form with pharmacy customers returning unused medicines to the pharmacy. Main outcome measure: Reasons given by patients/relatives/carers for returning unused medicines to
Associations with functional groups of natural organic matter (NOM) are of great importance for bioavailability, toxicity, and mobility of trace metals in soils and waters. In this study, the coordination chemistry of copper, Cu(II), in organic soils and dissolved organic matter (DOM) from soils and streams was investigated by extended X-ray absorption fine structure (EXAFS) spectroscopy. In both
The first order second moment (FOSM) method is used for deriving a risk measure for safety of people in hotels. The measure is the reliability index ß. The safety is expressed as the evacuation time margin which is the difference between the available time before untenable conditions occur and the evacuation time. These times are subjected to uncertainty. The reliability index is used to determine
A field sampling device to study the transport of aromatic, persistent chlorinated hydrocarbons from water to air was constructed. It was tested in large, outdoor artificial ponds contaminated with polychlorinated biphenyls (PCBs). The PCB compounds volatilised to air at a rate of 0·9 to 9·6 ng m−2 h−1 depending on levels of PCBs in the water and water temperature.
Popular Abstract in Swedish Ordet diffusion kommer från det latinska ordet diffu´sio som betyder spridning. Diffusion förekommer nästan överallt, även om man inte alltid kan se det. Exempelvis består all den luft som vi andas in av en mängd molekyler som diffunderar fram och tillbaka. Eller så kan det vara vattenmolekyler som diffunderar in till plåten på bilen och gör så att den rostar, eller varHindered diffusion occurs in the most different processes, as has been described in this thesis. It is very important to have an understanding of the influence of hindered diffusion on the mass transfer rate, especially when competing rate processes are acting simultaneously. Using mathematical modeling and simulation makes it possible to predict the effects of hindered diffusion. The systems that
BioArray Software Environment (BASE) is a web-based software package for storing, searching, and analyzing locally generated microarray data and information surrounding microarray production. The workflow begins in sample management and, optionally, microtiter plate tracking and ends in visualization and analysis of entire experiments. The relative ease with which new analysis plug-ins can be adde
Two examples of intraplacental choriocarcinoma are described. Both were small and had arisen in otherwise normal third trimester placentas. The covering mantle of many of the villi adjacent to the choriocarcinomas was formed, either focally or wholly, of neoplastic trophoblastic tissue: it is only at this stage of the development of a choriocarcinoma that villous structures are present, and a stud
Guidelines are used in information and quality management systems to ensure high quality by supporting design, production and communication processes. These guidelines can be presented as a conventional system on an intranet suitable for printouts, visualized as a traditional text-based report with a list of headings accompanied by tables and pictures or presented as paper documents in manuals or
Popular Abstract in Swedish Ärftlig blindhet orsakas oftast av sjukdomar där näthinnans fotoreceptorer, som ombesörjer omvandlingen av ljus till elektriska impulser, degenererar. Det anses att denna celldödsprocess styrs av ett antal olika mekanismer och projektets mål är att försöka identifiera och karaktärisera dessa mekanismer. Retinitis Pigmentosa (RP) är en ärftlig sjukdom där en genetisk defRetinitis pigmentosa (RP) is an inherited disorder and the leading cause of visual impairment in the working age population. It is caused by a number of different genetic mutations, all of which cause the rod photoreceptors to degenerate. As the rods become few in numbers, the cones will also begin to die, resulting in total blindness. Since the genetic defects leading to RP are numerous, it would
A platform for rapid on-line protein digestion of protein mixtures for direct infusion to a mass spectrometer is presented. A mixture of protein A, staphylococcal enterotoxin B and cytochrome c was used as a model mixture injected on a gel filtration column and a trypsin reactor which were connected in series to a micro liquid chromatography (mu LC) system. The peptides in the column eluate were a
We study the ground-state properties of a quasi-two-dimensional Bose Einstein condensate of indirect excitons, which are confined in an anisotropic harmonic potential. Incorporating the interactions, we calculate the order parameter variationally. The difficulties in the detection of a Bose-Einstein condensate are also discussed, along with possible ways which would overcome them.
