Sökresultat

Filtyp

Din sökning på "*" gav 531671 sökträffar

Effects of lubricant condition and tool wear in hard turning of novel-abrasion-resistance (N-AR) cast iron

Advanced materials, such as high abrasion resistant cast iron, have great applications for abrasive and erosive environments. Since the amount and the hardness of the microstructural carbides constituents in this material is extremely high, the abrasion-resistance cast iron is generally difficult to be machined with traditional cemented carbide tool. The hard and abrasive particles in this materia

A conceptual model for the development of Phytophthora disease in Quercus robur

Here, a conceptual model is presented for the development of Phytophthora disease in pedunculate oak. The model is presented using the causal loop diagram tool and gives an overview of how various abiotic and biotic factors, such as soil moisture, nutrient availability and mycorrhizal colonization, may affect the reproduction and the infective capacity of soil-borne Phytophthora species, the susce

The prospects for willow plantations for wastewater treatment in Sweden

The concept of willow vegetation filters for the treatment of nutrient-rich wastewater has the potential to address two of our most serious environmental problems today -water pollution and climate change- in a cost-efficient way. Despite several benefits, including high treatment efficiency, increased biomass yields, improved energy and resource efficiency, and cost savings, willow vegetation fil

Efficacy results of a 52-week, randomised, double-blind, safety study of a calcipotriol/betamethasone dipropionate two-compound product (Daivobet (R)/Dovobet (R)/Taclonex (R)) in the treatment of psoriasis vulgaris

Background: The calcipotriol/betamethasone dipropionate two-compound product is safe and effective in the short-term treatment of psoriasis. Objective: The primary objective was to investigate the safety of two treatment regimens involving use of the two-compound product over 52 weeks. The efficacy results are presented here. Methods: Six hundred and thirty-four patients were randomised double-bli

Novel alleles at the JK blood group locus explain the absence of the erythrocyte urea transporter in European families.

The Kidd (JK) blood group system is of importance in transfusion medicine. The Jk(null) phenotype is associated with absence of the urea transporter in erythrocytes and moderately reduced ability to concentrate urine. We and others recently reported different molecular alterations in the silenced Jkb-like alleles of Polynesians and Finns, populations with higher Jk(null) frequencies. Here we repor

The electronic structure of free water clusters probed by Auger electron spectroscopy

(H2O)(N) clusters generated in a supersonic expansion source with N similar to 1000 were core ionized by synchrotron radiation, giving rise to core-level photoelectron and Auger electron spectra (AES), free from charging effects. The AES is interpreted as being intermediate between the molecular and solid water spectra showing broadened bands as well as a significant shoulder at high kinetic energ

Surface complexation of mellitic acid to goethite: An attenuated total reflection Fourier transform infrared study

The nature of the interaction between mellitic acid (benzene hexacarboxylic acid) and the common soil mineral goethite (alpha-FeOOH) has been investigated as a function of pH and ionic strength by use of attenuated total reflection Fourier transform infrared spectroscopy. Molecular orbital calculations of the theoretical vibrational frequencies of the mellitate ion (L6-) and dihydrogen mellitate (

Genome survey sequencing of the wine spoilage yeast Dekkera (Brettanomyces) bruxellensis

The hemiascomycete yeast Dekkera bruxellensis, also known as Brettanomyces bruxellensis, is a major cause of wine spoilage worldwide. Wines infected with D. bruxellensis develop distinctive, unpleasant aromas due to volatile phenols produced by this species, which is highly ethanol tolerant and facultatively anaerobic. Despite its importance, however, D. bruxellensis has been poorly genetically ch

Altered striatal amino acid neurotransmitter release monitored using microdialysis in R6/1 Huntington transgenic mice

Huntington's disease is an autosomal dominant disease which presents with striatal and cortical degeneration causing involuntary movements, dementia and emotional changes. We employed 16-week-old transgenic Huntington mice (R6/1 line developed by Bates and coworkers) that express exon 1 of the mutant human Huntington gene with 115 CAG triplet repeats. At this age, R6/1 mice do not exhibit an overt

Between Fall and Fall-Rise : Substance-Function Relations in German Phrase-Final Intonation Contours

This study investigates an intonation contour of German whose status has not been established yet: a globally falling contour with a slight rise at the very end of the phrase (FSR). The contour may be said to lie on a phonetic continuum between falling (F) and falling-rising (FR) contours. It is hypothesized that F, FR and FSR differ with respect to their communicative functions: F is terminal, FR

Summary of the recommendations on sexual dysfunctions in men

Introduction. There are few published guidelines for the management of sexual dysfunctions in men and women, despite the prevalence and lack of attention to these problems. Disorders of sexual function in men include erectile dysfunction, orgasm/ejaculation disorders, priapism, and Peyronie's disease. Aim. To provide evidence-based and expert-opinion consensus guidelines for the clinical managemen

Diachronic change and pronoun status: Italian dative 'loro’

From a historical perspective, personal pronouns in Romance languages display a tendency to undergo changes in syntactic status in a particular order, namely; strong > weak > clitic. This paper discusses the possible reasons behind the final step of this sequence of development, i.e. that from a weak form to clitic status. It will be argued that the external trigger for this kind of diachronic cha

An analysis of population genetic differentiation and genotype-phenotype association across the hybrid zone of carrion and hooded crows using microsatellites and MC1R.

Abstract The all black carrion crow (Corvus corone corone) and the grey and black hooded crow (Corvus corone cornix) meet in a narrow hybrid zone across Europe. To evaluate the degree of genetic differentiation over the hybrid zone, we genotyped crows from the centre and edges of the zone, and from allopatric populations in northern (Scotland-Denmark-Sweden) and southern Europe (western-central no

Biophysical controls on CO2 fluxes of three Northern forets based on long-term eddy covariance data.

Abstract in UndeterminedSix to nine years of net ecosystem carbon exchange (NEE) data from forests in Hyytiala in Finland, Soro in Denmark and Norunda in Sweden were used to evaluate the interannual variation in the carbon balance. For half-monthly periods, average NEE was calculated for the night-time data. For the daytime data parameters were extracted for the relationship to photosynthetic acti

Garnet chemistry from the Sloinge excavation, Halland and additional Swedish and Danish excavations - Comparisons with garnet, occurring in a rock context

Information on the geological origin of raw garnet is a pre-requisite for the better understanding of garnet production and trade in ancient societies. The presented study is a first attempt to determine possible source rocks for the garnets found in the Sloinge excavation in southwest Sweden. It includes analyses of garnets from other excavations in Sweden and Denmark. It is also an attempt to de

Technique for measuring moisture storage capacity at high moisture levels

Knowledge of moisture storage capacity above the hygroscopic range is essential when calculating moisture, especially when different materials are to be connected. Generally, the storage capacity is represented by water retention curves, in which suction is plotted against the moisture content. In a number of laboratories in Europe and North America, the pressure plate and pressure membrane techni

Distinguished multiple events of fracture mineralisation related to far-field orogenic effects in Paleoproterozoic crystalline rocks, Simpevarp area, SE Sweden

Detailed investigations of fracture minerals have been carried out in the Simpevarp area, SE Sweden. in order to reveal the low-temperature evolution of the site and to discern different events of deformation, especially in the brittle regime. The study is part of the site characterisation programme for a potential deep-seated repository for spent nuclear fuel. The bedrock in the area is composed

Carrier dynamics around nano-scale Schottky contacts: a femtosecond near-field study

We report spatially and time-resolved measurements of ultrafast carrier dynamics around buried nano-scale Schottky contacts, performed with a novel femtosecond near-field scanning optical microscope. The experimental results are modeled by a self-consistent treatment of the drift-diffusion equation for the carriers and Poisson's equation for the built-in electric field. We show that the built-in f