Search results

Syntetisk framställning av naturligt förkommande substans med anti-cancer egenskap. Naturprodukt är naturligt förkommande substans som är producerat av levande organismer och har oftast anti-cancer eller andra gynnsamma egenskaper. Genom evolutionen har levande organismer skapat dessa naturprodukter för att skydda sig själv mot angrepp. Dessa naturprodukter med läkande egenskaper finns oftast i myThe fascinating molecular structure of indoline alkaloids, especially that of the communesins and perophoramidine (Figure 1), has encouraged the studies towards the total synthesis of the representatives of this alkaloid family, in particular perophoramidine. Finding methodologies to construct the vicinal quaternary stereocenters with the stereochemistry of perophoramidine is one of the main chall

Context: Data from the recently launched astrometric satellite Gaia will be coming in soon with the final data release expected in 2022. This will provide a very precise map of the Galaxy. The Solar system and Galaxy is thought to be filled with invisible bodies (planetesimals, planets, brown dwarfs, neutron stars, black holes, etc.) and they will affect the observations via gravitational lensing.

NADH:upiquinone oxidoreductase, or complex I, is the first and largest enzyme in the respiratory chain. It is the last known enzyme in the chain due to its complexity of being a very large complex comprising of a hydrophilic and a hydrophobic domains of about 46 subunits in total in the eukaryote enzyme. Another reason of its complexity is that the hydrophobic domain does not have any redox center

Polyphenols are a group of compounds that are widely spread in the plant kingdom. These compounds are of great interest for researchers because of their antioxidant properties that are important for both plant life and human health. Sample preparation is a crucial step for the determination of phenolic compounds and their metabolites in biological samples. Methods for isolation and preconcentratio

Two novel tetradentate ligands N, N’-Dimethyl-N, N’-bis(2-(chloromethyl)-1-methylbenzimidazole)- ethane-1,2-diamine (mepL), (-)-2-(((S)-2-((S)-1-(benzimidazol-2-ylmethyl) pyrrolidin-2-yl) pyrrolidin-1-yl)methyl)benzimidazole (PDPL) and their iron complexes [Fe(mepL)(CH3CN)2](SbF6)2 (SbF62), [Fe(CF3SO3)2(PDPL)] (OTf1) and [Fe(PDPL) (CH3CN)2](SbF6)2 (SbF61) were synthesized and characterized with IR

When designing control systems for real applications, it is important to first do testing in a simulated environment, to ensure adequate performance. This is especially important when designing control systems for applications that have high operation costs, e.g., submarines, since late errors in the development can be extremely costly. Saab develops steering systems for submarines. Prior to this

Idag vet man att det finns planeter även utanför vårt solsystem, de snurrar runt sina stjärnor precis som vi snurrar runt Solen - vår stjärna. Man kallar dem `exoplaneter', och hittills har man detekterat över tusen stycken. En del av alla dessa exoplaneter har till synes underliga egenskaper: Deras omloppsbanor är väldigt små, endast några hundradelar av Jordens omloppsbana, samtidigt som de The origin of the class of exoplanets typically referred to as hot Jupiters is to this day an unsettled matter. Some of the proposed formation channels predict certain values of the spin-orbit misalignment parameter, i.e. the angle between the stellar rotation axis, and the angular momentum vector of the planet orbit. One such formation channel is tidal capture following Kozai resonance (TCKR). Th

Every year hundreds of thousands of Central American migrants from mainly Honduras, Guatemala and El Salvador embark on a journey through Mexican territory with the hopes of a better future in the United States - estimations suggest that up to thirty percent are women. Transnational migration is due to heightened violence in Central America on the rise. Although earlier research about women´s part

High levels of stress have been documented to impact memory and attention. On the other hand according to previous literature low levels of stress can be helpful in preparing individuals physically and mentally to become active. Relaxation techniques have been proved to reduce stress successfully but there is debate regarding if they have the same positive effects on cognitive performance as well.

Föreliggande studie har undersökt psykologyrkets inverkan på privatlivet, samt hur psykologer skiljer mellan det privata jaget och jaget i rollen som psykolog. Ett delsyfte var att få fördjupad förståelse för vilka föreställningar och förväntningar som psykologrollen inbegriper. Det finns få tidigare studier inom ämnet varför en explorativ ansats har valts. Semistrukturerade intervjuer genomfördesThe aim of the present study was to examine how working as a psychologist can affect the private life and how psychologists manage to separate the private self from the self in the role of the psychologist. A secondary aim was to explore ideas and expectations on the role of a psychologist. There were few prior studies in the area why an explorative approach was chosen. Semi-structured interviews

I dagens sjukvård finns det många etablerade metoder för att diagnostisera sjukdomar. Vissa av dessa är avbildningstekniker som PET, CT eller MR medan andra, som biopsi, är en annan typ av undersökning som utförs. Dessa metoder har både för- och nackdelar. Gemensamt för dem är att de antingen är dyra, potentiellt kan ha bieffekter eller tar lång tid. Sjukvården har många alternativ, men vilket är The shape of a diffuse reflectance spectra can provide knowledge about tissue composition. By analysing this spectra one can, with the right evaluation methods, find out information about the tissue. With known absorption properties of the present tissue chromophores it is possible, with a curve fit algorithm, to find their volume fractions in any measured tissue. In this work, the usability of

The aim of this paper was to explore the perceptions and images of mental illness that is conveyed in the media form of internet magazines, more precisely in the discussion forums that are found below the articles. This paper also explored how the category of people with mental health problems related to these structures. A central focus was to investigate how the image was constructed from the ta

Om skam och skrivande.

Titel: Prissättningsproblematiken för multikanalföretag - Hur bemöter multikanalföretag den ökade pristransparensen på Internet Ämne: FEKH69, Examensarbete i redovisning på kandidatnivå, 15 HP Författare: Linn Boman och Emina Holmgren Handledare: Ola Mattisson Nyckelord: Multikanalföretag, marknadsvillkor, ”The Long Tail model” e-handel, prissättningsstrategi, värdebaserad, nischade produkter

Detta arbete har som syfte att belysa hur bristfälligt bemötande och behandling av fysiska skador har normaliserats inom den svenska förlossningsvården. Det innebär samtidigt att belysa de argument som används för att marginalisera dessa skador. Åkommorna som berörs är både fysiska och psykiska. De kan vara i from av underlivsbristningar eller ett psykiskt lidande på grund av bristande information

The e-commerce market is growing explosively and the competition between retailers grows larger every day. Companies will have to step up their offers in order to keep customers, and one way to do this is to improve their packaging. The main goal of this master’s thesis is to develop a proposal for an e-commerce packaging with an improved customer experience for the online clothing retailer nelly.