Search results

Popular Abstract in Swedish Två av de viktigaste polyaminerna påträffades redan i slutet av 1600-talet, som kristaller i tjursperma och har därför fått namnen spermin och spermidin. Dessa aminer bildas från en annan substans, putrescin, som först isolerades från ruttnande kött. Namnet putrescin kommer från engelskans putrefaction, som betyder förruttnelse. Polyaminer, som kemiskt sett är positivt The polyamines putrescine, spermidine and spermine are essential for cell growth and differentiation. The biosynthesis of polyamines are tightly regulated by feedback mechanisms involving two enzymes, namely ornithine decarboxylase (ODC) and S-adenosylmethionine decarboxylase (AdoMetDC). This thesis deals with the mechanisms behind the polyamine-mediated feedback control of these enzymes. The poly

The knowledge on the optics of fogbows is scarce, and their polarization characteristics have never been measured to our knowledge. To fill this gap we measured the polarization features of 16 fogbows during the Beringia 2005 Arctic polar research expedition by imaging polarimetry in the red, green and blue spectral ranges. We present here the first polarization patterns of the fogbow. In the patt

P>1. Female preferences for particular male ornaments may shift between populations as a consequence of ecological differences that change the reliability and detectability of the ornament, but few studies have examined how ornaments function in different populations. 2. We examined the signalling function of male plumage ornaments in a warbler, the common yellowthroat (Geothlypis trichas), breedi

PURPOSE: To evaluate the correlation between improvement in visual acuity and the reduction of foveal thickness after a single intravitreal injection of 4 mg of triamcinolone in diabetic macular edema. DESIGN: Prospective, interventional, nonrandomized clinical trial. METHOD: PATIENTS: In a prospective study 24 eyes with diabetic macular edema were treated with an intravitreal injection of 4 mg of

In this study we compare two types of Large Eddy Simulation (LES) turbulent combustion models with experimental data for a low swirl stabilized turbulent lean premixed flame. Such flames are a great challenge to numerical simulations since they are unsteady and sensitive to boundary conditions, and details of the experimental set-up. The two classes of LES turbulent combustion models considered ar

Mo-V-Nb-Te-oxide catalysts with nominal metal compositions equal to those of M1, M2, and a mixture of the M1 and M2 phases were prepared in neat and sol-diluted forms. The latter catalysts were prepared with 30 wt% of Al2O3, SiO2, or TiO2 sol. All catalysts were characterized by BET, XRD, and TPR and tested for the respective ammoxidation of propane and propene. XRD showed that dilution with SiO2

Purpose: To prospectively test the mathematical models for calculation of the risk of malignancy in adnexal masses that were developed on the International Ovarian Tumor Analysis (IOTA) phase 1 data set on a new data set and to compare their performance with that of pattern recognition, our standard method. Methods: Three IOTA centers included 507 new patients who all underwent a transvaginal ultr

Nonpharmacologic and team care research present unique design challenges. Nonpharmacologic care by nature is multifaceted and complex. Rarely do patients receive an intervention in isolation. The delivery of a single or group of interventions can be provided by one provider but is frequently provided by teams. Therefore, it is imperative that clinical researchers design studies that evaluate singl

Popular Abstract in Swedish Kroppens fettceller innehåller en energidepå i form av s.k. triglycerider, en glycerolmolekyl med tre påkopplade fettsyror, som kan användas vid behov (fasta, arbete och dylikt). För att kroppens andra celler ska kunna använda fettdepåerna som energikälla, måste fettsyrorna frikopplas från glycerolmolekylen och skickas ut ur fettcellerna till blodet. Fettsyrorna transpoThe primary role of hormone-sensitive lipase (HSL), an 84 kDa enzyme of 768 amino acids (in the rat protein), is to hydrolyse stored triacylglycerols in adipocytes of white adipose tissue. Catecholamines and insulin regulate lipolysis through cellular signalling. A major target of this regulation is HSL, activated through phosphorylation by cAMP-dependent protein kinase (cAMP-PK). Insulin activate

Staten kan under vissa förutsättningar omhänderta barn som lever i en skadlig miljö. Det är av yttersta vikt att så inte sker helt sonika. Denna uppsats syftar till att utreda huruvida det sätt på vilket tvångsomhändertaganden ska ske och faktiskt sker, är förenligt med föreställningen om ett rättssäkert samhälle. Många har i den juridiska litteraturen presenterat teorier om vad begreppet rättssäkChildren living in a harmful environment might compulsorily be taken into care by the social services. It is of utmost importance that this is not done arbitrarily. The purpose of this essay is to investigate if this act of the State is being done in consistency with the notion of the rule of law. In the judicial doctrine many people have presented theories of the meaning of the rule of law. All o

This work was carried out for the company Verifyter AB in Lund. Their main customers are microchip manufacturers. Verifyter provides a tool called PinDown that does automatic debugging on their customers' test runs. The tool creates a large amount of data with information about these test runs. The company wants to be able to visualize this data for their customers in order for their customers

Trots stora insatser från samhället för att förmå föräldrar att nå samförståndslösningar minskar inte antalet vårdnadstvister. Antalet vårdnadsärenden som leder till tvister i domstol har tvärtemot ökat avsevärt. I 2006 års vårdnadsreform angavs föräldrars samarbetsförmåga som en särskilt viktig faktor vid avgörandet av vårdnadsfrågor. Syftet var att domstolen skulle bli försiktigare med att förorDespite great efforts by society to persuade parents to reach consensus solutions, the number of custody disputes is not decreasing. On the contrary, the number of custody cases leading to litigation in court has increased considerably. The 2006 custody reform identified parents' ability to cooperate as a particularly important factor in deciding custody issues. The aim was to make the Court m

Histopathology is the procedure used in medicine to optically examine microscope-images of tissue samples (biopsies) in order to study the manifestation of disease. It is used, for example, to diagnose the spread and type of cancer tumors, which have implications on the chosen treatment. Currently this type of analysis is done manually by trained professionals. It is time consuming and the diagnos

Uppsatsens syfte är att studera hur myndigheter och lagstiftaren kan agera för att undvika misslyckade upphandlingar. Det uppnås genom att studera det nuvarande regelverket i LOU och två upphandlingar som uppmärksammats medialt som misslyckade upphandlingar. Inledningsvis studeras LOU och det påpekas särskilt att varken förberedelse eller uppföljning av upphandling omfattas av regelverket. DärefteThe purpose of this thesis is to study how authorities and legislators can act to avoid failed public procurements. This is achieved by studying the current regulation and two public procurements that are regarded as failed public procurements by the media. Firstly, an account of current regulations for public procurement is made. Particular attention is paid to that neither preparation of procure

Powders are complex systems that depend strongly on how the individual particles in- teract and their surroundings. Understanding powders behaviour under certain conditions is very important for the product in many applications, one of them being Additive Manu- facturing (AM). The overall goal of this study is to understand and quantify the effect of flow additives in combination with iron powder.

Studied Case: This thesis focuses the research on the impact of Industry 4.0 at the Port of Barcelona. It considers of relevance the affect that the fourth industrial revolution is taking place in the workplaces all around the world. The researcher takes the case of the logistics service provider as the Port of Barcelona to understand the implication that the five major technologies characteristic

There are spatial elements and factors in every social activity. Physical environment in particular and its characteristics has a significant effect in the social decisions and outcomes of a location and of the residents of disadvantaged areas. These spatial elements and factors have been the main focus in many researches and studies about young people’s socio-economic statuses and achievements. T