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Pulsating or not? A search for hidden pulsations below the red edge of the ZZ Ceti instability strip

The location of the red edge of the ZZ Ceti instability strip is definedobservationally as being the lowest temperature for which a white dwarfwith a H-rich atmosphere (DA) is known to exhibit periodic brightnessvariations. Whether this cut-off in flux variations is actually due to acessation of pulsation or merely due to the attenuation of anyvariations by the convection zone, rendering them invi

Permeability and mass transfer as a function of the cooking temperature during the frying of beefburgers

Intrinsic permeability of water in beefburgers made of different meat raw materials cooked at 50 degrees C, 60 degrees C, 70 degrees C and 80 'C was measured using an air-driven pressure cell, and it was found to be in the range of 6.8 x 10(-18) m(2) to 1.6 x 10(-16) m(2) for the temperature ranging from 50 degrees C to 80 degrees C. The highest permeability value was found in beefburgers prepared

Helicity dependence of the gamma p -> N pi channels and multipole analysis in the Delta region

A high-quality double-polarization data set for the helicity dependence of the total and differential cross-sections for both gammap --> Npi channels in the Delta region has been obtained in the framework of the GDH experiment. The experiment, performed at the Mainz microtron MAMI, used a 4pi detection system, a circularly polarized photon beam, and a longitudinally polarized frozen-spin target. T

The impact of canopy exchange on differences observed between atmospheric deposition and throughfall fluxes

To study the impact of canopy exchange on differences observed between atmospheric deposition and throughfall fluxes, several-held experiments were performed at the Speulder forest in The Netherlands. Relevant information was obtained by (i) measuring open-field precipitation and throughfall fluxes with different time resolutions, using two canopy exchange models, (ii) by comparing results from su

Proliferation, Invasion and p16 Localisation in Malignancies

Popular Abstract in Swedish Okontrollerad proliferation och invasion är två viktiga egenskaper i tumörutveckling och tumörprogression. Tidigare studier har visat att invaderande tumörceller i kolorektalcancer har låg proliferation parallellt med en uppreglering av tumörsuppressorn p16. Vi undersökte p16-uttrycket och proliferation i basalcellscancer och skivepitelcancer i huden, tumörer som är lokUncontrolled proliferation and invasion are two characteristics in tumour development and progression. Previous studies have shown that invading tumour cells in colorectal cancer have low proliferation in parallel to upregulation of the tumour suppressor p16. We set out to detail the p16 expression and proliferation in basal cell carcinoma and squamous cell carcinoma of the skin, tumours that are

Predominance of CIN versus MSI in the development of rectal cancer at young age.

BACKGROUND: Development of proximal and distal colorectal cancers involve partly different mechanisms associated with the microsatellite instability (MSI) and the chromosomal instability (CIN) pathways. Colorectal cancers in patients under 50 years of age represent about 5% of the total number of tumors and have been associated with an increased frequency of MSI tumors. However, MSI and CIN may pl

Bacterial destruction of mica during bioleaching of kaolin and quartz sand by Bacillus cereus

Growth and metabolic activities of Bacillus cereus were found to cause the extraction of iron atoms from the octahedral position in mica in the kaolin sample (49%) and in the quartz sands sample (17%) after 3 months of bioleaching, while aluminium removal was only 5%. Mica destruction was detected in kaolin and quartz sands samples by X-ray diffraction analysis and also by i.r. adsorption spectros

Analysis of RNA and enzymes of potential importance for regulation of 5-aminolevulinic acid synthesis in the protochlorophyllide accumulating barley mutant tigrina-d12

Dark-grown tigrina-d(12) mutants of barley (Hordeum vulgare L.) accumulate abnormally high amounts of the chlorophyll intermediate protochlorophyllide. In light dark cycles this leads to necrotic segments of the seedling leaves and lethality due to photodynamic damage by the excessive protochlorophyllide accumulated in the dark period. Upon inhibition of the early chlorophyll biosynthetic enzyme,

On the optical theory of underwater vision in humans

Defocus changes the visual contrast sensitivity function, thereby creating a complex curve with local dips and peaks. Since underwater vision in humans is severely defocused, we used optical theory and the phenomenon of spurious resolution to predict how well humans can see in this environment. The values obtained correspond well with experimental measurements of underwater human acuity from earli

Plan & Protest : En sociologisk studie av kontroverser, demokrati och makt i den fysiska planeringen

Popular Abstract in Swedish Den fysiska planeringen innebär interaktion mellan aktörer inom skilda samhällssfärer där parter med skilda sociala positioner, resurser, perspektiv och värderingar möts. Aktörernas bilder av vilka effekter ett givet planförslag medför och vilka effekter som ska betraktas som de mest centrala varierar regelmässigt. Mellan de berörda parterna är det därför inte ovanligt Since planning in connection with new building projects frequently generates controversy, it can be seen as a typical form of contentious politics. The aim of this dissertation is to analyze siting controversies, their origin, development and termination, in efforts to explore the problem of legitimacy in planning processes of this sort. The research approach employed is that of a multiple case s