Filtyp
The problem of communicating one bit over a memoryless Gaussian channel with an energy constraint is discussed. It is assumed that the channel is allowed to be used only two times. An ideal feedback channel is also supposed available. The optimal feedback strategy and the bit-error probability are derived. It is shown that feedback gives a significant performance gain and that the optimal strategy
Popular Abstract in Swedish Tillväxthormon (growth hormone, GH) har en central roll för reglering av tillväxt och ämnesomsättning hos däggdjur. Tillväxthormon frisätts från hypofysen, transporteras i blodet och utövar sina effekter på olika vävnader. Denna avhandling beskriver hur tillväxthormon påverkar ämnesomsättningen i fettceller från råtta, med särskild inriktning på de insulin-lika effekterGrowth hormone (GH) exerts growth-promoting and metabolic effects in mammals. The metabolic effects of GH in adipose tissue are insulin-antagonistic or insulin-like. Cells that just have been exposed to GH are insensitive to the hormone. This study addresses the question of how GH exerts its insulin-like metabolic effects, using primary rat adipocytes as a model system. It is shown that GH increas
Popular Abstract in Swedish Streptococcus pyogenes (grupp A streptokocker) är en bakterie som orsakar flera olika infektionssjukdomar hos människan, av vilka de vanligaste är halsfluss och svinkoppor. För att kunna infektera sin värd använder sig en patogen bakterie av virulens-faktorer och S. pyogenes uttrycker flera olika sådana. Den viktigaste av dessa anses vara M proteinet som
Popular Abstract in Swedish Talet om det mångkulturella i skolan och samhället: En analys av diskurser om det mångkulturella inom utbildning och politik åren 1973-2006 Det svenska samhället har under de senaste tre decennierna påverkats av debatter, rapporteringar och diskussioner om det mångkulturella samhället. Frågan om hur man ska handskas med ?det mångkulturella? har uppfattats och beskrivitThe debate on "multicultural issues" has had a considerable impact on society, and in Sweden, dealing with such issues has been described and defined as a major problem. The aim of the present thesis is to analyse the various contents of discourses on multicultural issues that have influenced education and policy documents during the period 1973-2006. On several occasions, the Swedish government h
Emission sources in proton-nucleus and nucleus-nucleus collisions at intermediate energies have been studied. Pion excitation functions from the absolute threshold to 500 MeV have been measured with an ion beam of continuously varying energy with an energy resolution of 1 MeV. Total yields, angular distributions and target mass dependences are compared to QMD and BUU calculations. Proton/deutero
The influence of extensive sedum-moss vegetated roofs on runoff water pollution loads was studied for four full scale installations located in southern Sweden. The aim of the study was to ascertain whether the vegetated roof behaves as a sink or a source of pollutants on annual basis. The pollution loads from vegetated roofs was also compared with the pollution loads from two non-vegetated roofs l
Popular Abstract in Swedish Föreliggande avhandling, «Migrations du croire chez Michel de Certeau», undersöker Certeaus analyser av tron såsom de förekommer i hans litterära produktion. Den franska substantivformen «le croire» översätter jag med «tron» på svenska, vilket motsvaras exempelvis av de engelska uttrycken «belief» eller «believing». Min tes är att det finns ett samband mellan Certeaus aThis study investigates the concept of believing in Michel de Certeau's writings. My thesis is that a connection exists between his analysis of believing and an attitude of migration, displacement, voyage and existential quest. This connection concerns even his personal life in so far as he moves from one discipline to another. My study tries to reconstruct and discuss this complex of migrations o
In a joint project – Human Factors in ANS, HUFA - between the Swedish Civil Aviation Administration and Lund University the aim is to find out how a new team-based organization and the introduction of a new air traffic control system will affect safety culture and psychosocial working environment by changes in organizational climate, team climate and leadership. All in all, four studies will be co
A recent upsurge in rights talk has left a mark on many areas of law and social policy. Areas such as freedom of expression and hate speech that have traditionally been debated in terms of rights, as well as family law and the welfare of children, human trafficking and prostitution, national security and anti-terrorism legislation, economic policy and market development, to mention but a few, have
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Popular Abstract in Swedish Fall och frakturer hos äldre är ett vanligt förekommande och ökande hälsoproblem, som orsakar fysiska, sociala och psykologiska problem hos den enskilde och är kostsamt för samhället. Syftet med avhandlingen är att undersöka fallolyckor bland de patienter i åldern 65-74 år som kommit till ortopedklinikens akutmottagning, att undersöka reliabiliteten beträffande gångtestFalls and fractures in older people are a common and increasing health problem which causes physical, social and psychological problems for the individual and is costly to society. The aims of this thesis were to investigate accidental falls of patients aged 65 - 74 who attended an orthopedic emergency ward, to investigate reliability of the modified figure of eight (MFE) and compare it with other
The central theme in St. Gregory of Nyssa's work "Contra Eunomium II" is whether it is possible to speak about God - in particular the essence of God. The chapter delineates Gregory's subtle answer.
