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Integrated models including optics, structures, control systems, and disturbances are important design tools for Extremely Large Telescopes (ELTs). An integrated model has keen formulated for the European ELT and it includes telescope structure, main servos, primary mirror segment control system, wind, optics, wavefront sensor, deformable mirror, and an AO reconstructor and controller. There are t
The paper examines and illustrates different trends in relation to historical energy use-related intensities and corresponding CO2 emission trends. The methodology encompasses a decomposition quantitative approach for estimating decoupling trends to energy use and economic and demographic parameters driving CO2 emission levels. The analysis covers both global and regional trends for the period 197
I kapitlet problematiseras den sociala rättigheten till skolutbildning på gymnasial nivå i Sverige med fokus på yrkes- och lärlingsutbildning utifrån ett medborgarskapsperspektiv. Syftet är att analysera hur ungdomarnas sociala rättighet till gymnasial utbildning förverkligas av statliga och kommunala aktörer. Jag avgränsar mig till att studera hur skolrepresentanter och tjänstemän på lokal nivå,
If we admit that, with the exception of language, human perception is predominantly visual, it is reasonable to think that all phenomena conveyed by the visual senses have something in common, but then visual semiotics/visual culture will comprehend much more than painting, sculpture, and architecture. The double coding hypotheses of cognitive psychology, as well as Lessing’s classical opposition
Popular Abstract in English Organic synthesis has been defined as the “intentional construction of molecules by chemical means”1 and is often regarded to have commenced with Wöhler’s preparation of urea in 1828.2 Today, the influence of organic synthesis reaches far beyond the domain of chemistry, touching upon fields such as biology, nanotechnology, material science, and medicine. It has thus supThis thesis deals with the development of new reaction methodology for stereoselective synthesis, as well as total synthesis of natural products and investigations of the stereochemical outcome in the Mukaiyama aldol reaction. Chapter 2 describes efforts made towards the total synthesis of the oxindole natural products perophoramidine and the communesin. The first part of this chapter aims to de
The purpose was to study age related changes in circulatory system via Ballistocardiography (BCG) by utilizing Electromechanical Film (EMFi) sensors by gradually changing the ambient temperature from a thermoneutral area to cold direction. ECG and BCG were recorded from a young person (23 years) and from an older person (78 years), both males. During the tests, brachium blood pressure (BP) and pul
This case-control study of tobacco smoking and acute myeloid leukemia (AML), emphasizing specific associations with morphologic and cytogenetic subtypes, comprised smoking histories for 333 cases and 351 controls. Smoking status (ever smokers versus life-long non-smokers) showed no evident effect on AML risk. However, an effect of smoking was indicated at high cumulative smoking doses (pack-years)
The European Union has initiated a number of initiatives to improve resource efficiency in Europe. The Ecodesign Directive is one of the policy instruments that could aid the transition towards a more resource efficient economy. So far, the Directive has mainly been applied to set requirements related to energy efficiency, but there is potential for setting legal standards that increase product du
Protein molecules are responsible for many biological functions in cells. In order to fulfill their various biological roles, these chain-like molecules must fold into precise three-dimensional shapes. The knowledge of accurate molecular structures is a prerequisite for rational drug design and for structure based functional studies. Getting structural information of proteins can be a very difficu
In his recent work, Eco abandons his conventionalist theory of pictures, which was heavily censored by, among others, the present author. In so doing, however, Eco now goes to the other extreme, claiming that television images are like mirrors, which are no signs. It is my contention that Eco fails to come up with a more acceptable theory of iconicity. Since Eco is one of the few semioticians conc
The paper examines the reception of and revisions made to the teachings of the Italian astrologer-monk Placido de Titi (1603 – 1668) in Protestant England following the decline of astrology during the 18th century, particularly as found in the writings of John Worsdale (1766 – c. 1826), whose role in the emergence of modern astrology is to a certain extent reappraised, and of his contemporary crit
Popular Abstract in Swedish Att få inopererat en höft- eller knäprotes är numera ett vanligt ingrepp. Under 80-talet visade svenska och utländska studier att 10-15% av de patienter som genomgick en sådan höftoperation drabbades av försämrad njurfunktion efter operationen. Denna försämring var övergående men kunde vara allvarlig för patienten, och kostsam för sjukvården, under den tid den kvarstod.Total hip replacement (THR) is a common procedure, generally performed in elderly persons. Previous studies indicated that the use of isoxazolyl penicillins could induce a transient post-operative renal dysfunction in these patients. By measuring urinary levels of markers for glomerular (albumin, IgG) and tubular (protein HC) function we studied the influence of systemic cloxacillin, the gentamic
GABA is the major inhibitory neurotransmitter in the CNS and changes in GABAergic neurotransmission affect the overall activity of neuronal networks. The uptake of GABA into synaptic vesicles is mediated by the vesicular GABA transporter (VGAT), and changes in the expression of the transporter directly regulate neurotransmitter release. In this work we investigated the changes in VGAT protein leve
