Sökresultat

Popular Abstract in Swedish Huvudtanken i svensk välfärdspolitik är att genom generella åtgärder skapa ett samhälle tillgängligt för alla medborgare. Det är därför viktigt att undvika segregering och särlösningar och i stället höja normalverksamhetens standard. Fritidshemmets mål och uppgifter är desamma för alla barn och kvaliteten i verksamheten ska vara så hög att alla barns behov tillgodoses. The main idea behind the Swedish welfare state is to create a society accessible to all citizens by using to general measures. It is, therefore, important to avoid segregation and special solutions, and instead increase the standard of normal activities. The objectives and tasks of day centres for school-age children are the same for all children and the quality of the operations should be of a st

AbstractThis thesis is devoted to calibration of mathematical chromatography models. Chromatography models include unknown parameters that must be determined before the models can be applied to optimization or scale-up of a chromatography process. The aim of the work presented in the thesis was to develop methods for determining these unknown model parameters.The fundamental approach adopted to de

The measured net ecosystem exchange (NEE) of CO2 between the ecosystem and the atmosphere reflects the balance between gross CO2 assimilation [gross primary production (GPP)] and ecosystem respiration (R-eco). For understanding the mechanistic responses of ecosystem processes to environmental change it is important to separate these two flux components. Two approaches are conventionally used: (1)

Large-scale protein conformational motions on nanosecond – microsecond time scales are important for many biological processes, but remain largely unexplored because of methodological limitations. NMR relaxation methods can access these time scales if protein tumbling is prevented, but the isotropy required for high-resolution solution NMR is then lost. However, if the immobilized protein molecule

Oxytocin (OT) and vasopressin (VP) are neurohypophyseal hormones with potent stimulatory actions on the uterus. In order to determine whether these hormones may have a paracrine action on the uterus, OT and VP gene expression was studied in myometrium from pregnant rats at gestational ages of 14 and 20 days, and from ovariectomized animals treated with oestradiol and progesterone. OT and VP mRNA c

Researchers who desire to bring about change in organizational settings require approaches to inquiry which can go beyond superficial appearances and prejudice. In seeking to go beyond mere examination of socio technical systems researchers have developed a proliferation of different approaches. Many of these have drawn upon social and human sciences to ground methods and assumptions in philosophi

Popular Abstract in Swedish Lunds strängfragmenteringsmodell beskriver hur färgade partiklar (kvarkar och gluoner, tillsammans kallade partoner) som produceras vid högenergetisk partikelkollisioner omvandlas till färgneutrala hadroner. Denna avhandling utvecklar och utforskar ett alternativt tillvägagångssätt till modellen. Den nya infallsvinkeln förbättrar modellen för system som består av många

A common way to cool the tip is to use serpentine passages with 180-deg turn under the blade tip-cap. Improving internal convective cooling is therefore required to increase the blade tip life. In this paper, augmented heat transfer of a blade tip has been investigated numerically. The computational models consist of a two-pass channel with 180-deg turn and pin-fins mounted on the tip-cap, and a s

The Prototype Repository, at the Aspo HRL (Hard Rock Laboratory), is a demonstration project for the deposition of spent nuclear fuel, and provides a full-scale reference for testing predictive models relating to a spent nuclear fuel repository, both its individual components as well as the complete system. The final layout involves six deposition holes, four in an inner section and two in an oute

Background: Scientific reviewing is a voluntary process to determine if a manuscript deserves publication. REVIEW means: Responsibly Evaluate, Verify and Improve the manuscript, Educate the authors and editors, and Weigh your expert opinion against the submitted work. Provide your review in a respectful, unbiased and timely manner. Review Methods: Make sure editors know about your willingness to r

Purpose of this paper The purpose of this paper is to present a comparative case study of the procedures and guiding principles in the packaging selection practice of two international companies. Design/methodology/approach A qualitative case study with an inductive approach was conducted. The data was collected through semi-structured interviews, documentation, and field visits. Findings Th

Oxidative degradation is a serious threat to long-term use and recyclability of polymers. Successful recycling of polymeric quality products requires characterization of the polymer material after reprocessing and use. Lately, a growing awareness of the heterogeneous nature of degradation has developed in terms of physical spreading, non-uniform distribution of stabilizer, physical loss of stabili

Popular Abstract in Swedish Ett av dagens stora miljöproblem är de höga halter av koldioxid som ackumuleras i atmosfären. En stor del av samhällets koldioxidutsläpp kommer från förbränning av fossila bränslen som kol, olja eller bensin. Ett av de mest lovande alternativa bränslen som kan ersätta dagens stora bensinförbrukning är bioetanol. Cellulosainnehållande restprodukter från skogsbruk (t.ex. Ethanol produced from cellulose is a promising future alternative fuel. The production process has three main steps: (i) pretreatment of raw material to increase degradability; (ii) enzymatic hydrolysis of cellulose to produce glucose; (iii) fermentation of glucose into bioethanol. This thesis contains studies with the aim to improve the enzymatic hydrolysis of cellulose from steam pretreated spru

Popular Abstract in Swedish Cirka hälften av dödsfallen i västvärlden orsakas av hjärt-kärlsjukdomar såsom hjärtinfarkt, kärlkramp och stroke. En gemensam nämnare för dessa är den bakomliggande sjukdomen ateroskleros (åderförkalkning eller åderförfettning). Ateroskleros är en inflammatorisk sjukdom, som leder till förträngningar (plack) av blodkärl. En orsak till detta är att blodfetter fas

Present digital logic gates are primarily built from field effect transistors (FETs) such as complementary metal oxide semiconductors with the gate length in the deep sub-μm regime. As device feature sizes approach the nanometer regime, fundamental physical constraints and increasingly prohibitive economic costs will make further miniaturization in electronic circuits difficult, and this has motiv

Popular Abstract in Swedish Skulle p53-målgenen TRIM22 kunna skydda mot cancer uppkomst? Frisk blodbildning En frisk vuxen människa har mellan fyra och sex liter blod, beroende på individens kroppsstorlek. Blodet produceras i benmärgen som finns i skelettbenen. Varje sekund bildas normalt i benmärgen tre till fyra miljoner blodkroppar från våra stamceller. Blodkropparna är specialiserade celler The tumor suppressor gene p53 is a transcription factor that mediates cell cycle arrest, apoptosis and differentiation. p53 mediated differentiation of leukemic cells depends on the transcriptional activity of p53 but so far no obvious differentiation inducing target gene has been identified. Using a cDNA microarray analysis, I identified TRIM22/Staf50 as a novel direct target gene to p53. The fun

Background: The European Molecular Genetics Quality Network (EMQN) was formed in order to improve external quality assessment for molecular genetic testing in Europe. From 1999 to 2002 it received funding from the European Union under the Standards, Measurement and Testing programme (contract no. SMT4-CT98-7515). Since then, its maintenance has been supported through subscription of the participan