Filetype
Populärvetenskaplig sammanfattning: Frågan om jordens ålder fick sitt svar först vid 1900-talets början, då upptäckten gjordes att uran sönderfaller till bly med bestämd hastighet. Genom att mäta blyisotoper i uranhaltiga mineral kunde man räkna baklänges och se hur lång tid som krävts för att den uppmätta mängden bly skulle bildas. Samma typ av beräkningar gjorda på mineralet zirkon (ZrSiO2) är i
Popular Abstract in Swedish Brosk bekläder våra leder och förser dem med en slät yta vilket förhindrar en direkt ben mot ben kontakt. Det fungerar också som stötdämpare i belastade leder och ger glidytan mycket låg friktion. Vatten hålls kvar i broskets matrix på grund av den negativt laddade proteogykanen Aggrecan vilken i sin tur hålls kvar i ett nätverk av kollagenfibrer. När en led belastas prThe cartilage matrix is made up of a fibrillar meshwork comprising type II collagen and other associated proteins. One main function of this network is to retain the large aggregating proteoglycan, aggrecan, a vital component in the regulation of fluid flux in cartilage. In disease such as osteoarthritis, the breakdown of the collagen network appears to be the final step in destruction of cartilag
The hyperfine coupling constants and the natural radiative lifetimes of the 5 p 2 P 3/2 and 6 p 2 P 3/2 levels of K 39 were determined in a level crossing experiment on an enriched K 39 sample in a sealed-off resonance cell. The following results were obtained: ----- -- a (5 p 2 P 3/2 ) = 1.973 (12) MHz -- a (6 p 2 P 3/2 ) = 0.886 (8) MHz ----- -- b (5 p 2 P 3/2 ) = 0.870 (18) MHz -- b (6 p 2 P 3/
BACKGROUND: – The clinical use of risk scores to guide treatment decisions and improve clinical outcomes has rarely been prospectively evaluated. This study aimed to evaluate whether a biomarker-based ABC-AF risk score–guided multidimensional treatment strategy improves long-term outcomes in patients with AF. METHODS: – The multicenter, registry-based, randomized, controlled, open-label study enro
A biorefinery can operate with various plant materials as feed stock, (in contrast to fossil-based oil refineries). It has been defined by the International Energy Agency, Task 42, as “the sustainable processing of biomass into a spectrum of marketable bio-based products (chemicals, materials) and bioenergy (biofuels, power, heat)”. One of the challenges in operating large-scale facilities is that
Microsoft PowerPoint - NGEA01_2014 10/19/2015 1 Consequences of climate change ANNA MARIA JÖNSSON, INES, LU This lecture Climate change impacts - focus on natural and managed ecosystems • Climate change • Observed changes • Future concerns • Adaptation strategies • Next week: exercise 10/19/2015 2 www.ipcc.ch, 5AR 2013 - Increased global mean temperature - Anthropogenic emission of GHG - Climate e
https://www.nateko.lu.se/sites/nateko.lu.se/files/ngea01_2015_consequences_of_climate_change.pdf - 2026-07-23
Like many island people, Ontong Javans are always on the move to and from their gardens or the sea, between islands within the atoll, and to other localities both within and outside Solomon Islands. This article explores the nature of this mobility and the ways in which the spatial mobility of Ontong Javans is linked to their livelihood strategies and to social mobility. Building on both quantitat
L1_0-ordered thin-film FePd was measured using AFM, MFM, TEM, XRR and GISAXS to determine what defects were present and how they affected the X-ray scattering. In AFM it was found that there was a terrace structure, with surface steps going along the <110>-direction. These steps originated in dislocations moving from the Pd-FePd interface to the surface, which could be seen in the TEM. The layer t
Future sixth-generation (6G) wireless systems are expected to support extreme data rates, massive connectivity, and high energy efficiency. Largescale Multiple-Input Multiple-Output (MIMO) combined with Orthogonal Frequency Division Multiplexing (OFDM) is a key enabling technology to meet these demands. However, OFDM signals exhibit a high Peakto- Average Power Ratio (PAPR), which forces power amp
A feed control strategy, based on estimated sugar concentrations, was developed with the purpose of avoiding severe inhibition of the yeast Saccharomyces cerevisiae during fermentation of spruce hydrolyzate. The sum of the fermentable hexose sugars, glucose and mannose, was estimated from on-line measurements of carbon dioxide evolution rate and biomass concentration by use of a simple stoichiomet
The rapid progress in scanning probe microscopy (SPM) techniques in the last decade has induced an increasing need for manufacturing advanced SPM tips. One important case is conductive and transparent tips. For such tips, only a few techniques have been proposed. which are either expensive or have poor reproducibility. We here propose a simple and cheap sol-gel technique to prepare fibers with a s
A scintillating fibre tracker is proposed to measure elastic proton scattering at very small angles in the ATLAS experiment at CERN. The tracker will be located in so-called Roman Pot units at a distance of 240 m on each side of the ATLAS interaction point. An initial validation of the design choices was achieved in a beam test at DESY in a relatively low energy electron beam and using slow off-th
Reference attribute grammars (RAGs) can be used to express semantics as super-imposed graphs on top of abstract syntax trees (ASTs). A RAG-based AST can be used as the in-memory model providing semantic information for software language tools such as compilers, refactoring tools, and meta- modeling tools. RAG performance is based on dynamic attribute evaluation with caching. Caching all attributes
Departing from three metaphors—the body as gift, resource, and commodity—the book explores the contemporary exchange of organs, tissues, and cells. Although the gift is the sanctioned metaphor for donating parts of the body, the underlying perspective from the side of states, authorities, and the medical establishment often seems to be that the body shall be understood as a resource. But medicine,
Males of the European pine sawfly, Neodiprion sertifer Geoffr., were marked and released downwind from pheromone traps, baited with 100 mug of the sex pheromone (2S,3S,7S)-3,7-dimethyl-2-pentadecyl acetate. Males were released 5 m downwind from one trap, or downwind from five traps, 50 m or 200 m away. The average capture rates after 24 hr were 21.5%, 17.7% and 3.8%, respectively. The capture rate
Microdialysis was used for sampling enzyme hydrolysis products of starch hydrolysed with beta -amylase, pullulanase, and/or isoamylase, to obtain information about the molecular structure of starch. Starches from waxy, normal, and high amylose maize, and from normal and genetically modified potato (amylose deficient) were used, and also commercial potato amyloses. The hydrolysis products were anal
Autumn migration routes and orientation of Swedish Ospreys Pandion haliaetus were studied by satellite tracking of 18 birds. Of these. 13 could be followed during the entire migration (6 females, 5 males and 2 juveniles). Most birds migrated across western and central Europe to winter in tropical West Africa. However, one juvenile flew to Cameroon and one Female used a very easterly route and reac
