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We have investigated heterostructures formed within Vapor-Liquid-Solid grown III-V nanowhiskers. The growth conditions that are typical for chemical beam epitaxy facilitate the creation of atomically abrupt interfaces. In this paper we investigate the properties of heterostructure interfaces including switching of either the column-V material (As, P) or the column-III material (In, Ga).
The relationship between airway responsiveness to bronchoconstrictor- and cough-inducing stimuli has been examined in Ascaris suum-sensitized conscious guinea-pigs. Guinea-pigs were sensitized to Ascaris suum [4000 PNU and 100 mg Al(OH)3 i.p. on days 1 and 7] and then challenged with aerosolized antigen on days 21, 28 and 35. At day 35, antigen-exposure produced an early bronchoconstrictor respons
As part of a project aimed at developing models for photosystem II (PSII) in green plants, we have prepared a series of model compounds (7, 8, and 13). In these compounds, a photosensitizer, ruthenium(II) tris(bipyridyl) complex (to mimic the function of P-680 in PSII), was covalently linked to a manganese(II) ion through different bridging ligands. The structures of the compounds were characteriz
Objectives To clarify if differences in the physical workload, the psychosocial factors and in musculoskeletal disorders can be attributed to work organizational factors. Methods The physical workload (muscular activity of m. trapezius, positions and movements of the head, upper arms and wrists and heart rate) was assessed in 24 female hospital cleaners working in a traditional work organization (
Detta är ett kapitel i en volym vars syfte är att studera det fantastiska i litteratur från olika delar av den fransktalande världen. Mitt bidrag handlar om fallet Patrick Chamoiseau som ett exempel på modern användning av det fantastiska i västindisk litteratur.This is a chapter in a volume whose aim is to study the fantastic in literature from different parts of the French speaking world. My contribution deals with the case of Patrick Chamoiseau as an example of the modern use of the fantastic in Carribean literature.
A number of filamentous fungi are known to produce high levels of saline-soluble and low-molecular-mass lectins. The function of these proteins are not clear but it has been proposed that they are involved in storage of nutrients, development, recognition of other organisms, and defense reactions. A gene encoding such a lectin (AOL) was deleted in the nematode-trapping fungus Arthrobotrys oligospo
With the increasing concerns about our environment and human health, more and more stringent emission limits have been specified. These adopted and still coming emission limits require and promote more accurate, less experiential methods to design and develop the combustors. In this thesis, computation fluid dynamics (CFD) technology, based on large eddy simulation (LES) and level set G-equation m
Syftet med denna studie var att beskriva förändringar i det fysiska aktivitetsmönstret – ökad, minskad eller oförändrad fysisk aktivitet – hos en grupp studenter under en tremånadersperiod. I studien deltog 155 studenter. Två av de formulär som ingår i den transteoretiska modellen (förändringsstadier och beteendestrategier) användes. Slutsatser: • Om studierna planeras bättre skulle fler studente
The effects of a new calcium antagonist, isradipine (PN 200-110) on postpartum uterine activity and the maternal cardiovascular system were investigated. Uterine activity was recorded by a microtip transducer catheter inserted transcervically within 45 min of normal vaginal delivery. 0.5 mg of isradipine was given as a bolus injection during 5 min to 7 women with spontaneous uterine activity and 1
The release gamma-aminobutyric acid (GABA) and ATP from rat beta cells was monitored using an electrophysiological assay based on overexpression GABAA or P2X2 receptor ion channels. Exocytosis of LDCVs, detected by carbon fiber amperometry of serotonin, correlated strongly (similar to 80%) with ATP release. The increase in membrane capacitance per ATP release event was 3.4 fF, close to the expecte
This article deals with probable causes for missing values when using the Revised Class Play instrument for peer assessment of social behavior. The study was conducted with 10-13 year old primary school children in Sweden. The findings reveal that missing values may be caused by the cognitive and linquistic complexity of the instrument (RCP), as well as by gender stereotypes. The results indicated
Solvent extraction of phosphoric acid with Alamine 336 and tri-n-octylamine in toluene has been investigated. The activity of phosphoric acid is expressed as a polynomial of ionic strength and Bromley's model for electrolyte solutions is employed for calculation of ionic activity coefficients. Three species R3N (H3P04) n with n = 1, 2 and 3 in the organic phase are taken into account for explanati
