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Popular Abstract in Swedish Immunsystemet utgörs av de celler och molekyler i kroppen som har till uppgift att skydda oss mot angrepp av sjukdomsframkallande bakterier, virus och parasiter. Dessa patogener hindras först och främst av fysiska barriärer såsom hud, slemhinnor och mag/tarm kanalen. Patogener som har lyckats ta sig igenom dessa barriärer, möter härnäst immunsystemets första försvarslinThis thesis is based on work studying the immunoregulatory mechanisms that govern the balance between activation and inactivation of T lymphocytes. Most of the work has been carried out in an experimental system using a T cell receptor (TCR-Vb3) transgenic mouse strain to obtain a homogenous T-cell population and utilizing the properties of bacterial superantigens to induce T cell responses and un

The Encyclopedia of Global Environmental Governance and Politics surveys the broad range of environmental and sustainability challenges in the emerging Anthropocene and scrutinizes available concepts, methodological tools, theories and approaches, as well as overlaps with adjunct fields of study. This comprehensive reference work, written by some of the most eminent academics in the field, contain

Popular Abstract in Swedish Essentiella oljor från eukalyptusblad, Eucalyptus camaldulensis Dehn., utvunna genom destillation (HD) och superkritisk koldioxid (SC-CO2) -extraktion har jämförts. Utvalda huvudkomponenter från oljorna visar att komponenter i extrakt från SC-CO2 har övervägande högre molekylvikt än i dem från HD. Fysikalisk-kemiska egenskaper som molekylvikt, ångtryck och steriska faktA comparison of essential oils from leaves of Eucalyptus camaldulensis Dehn. obtained by hydrodistillation (HD) and supercritical carbon dioxide (SC-CO2) extraction is presented. Selected major components of the oils showed a predominance of higher molecular weight components in the SC-CO2 extracts than in those obtained by HD. Physico chemical properties such as molecular weight, vapour pressure

Medicinal plants cultivation has grown all over the world. This paper studies the role of Medicinal plants cultivation in sustainable development. The research takes the city of Fortaleza in Brazil as a case study. The results show that the proposed Living Pharmacy Program, which has been implanting for more than 20 years since 1990 in the municipality of Fortaleza, is enlarging the access of the

Programmets innehåll har vuxit fram i samtal mellan forskare från de fem forskningsmiljöerna och företrädare för de kommuner som har uttalat intresse för att delta i programmet. Intresset har kommit till uttryck i samtal med kommunföreträdare som har berättat om erfarenheter från besvärliga situationer, erfarenheter som behöver analyseras och ställas i relation till andra kommuners erfarenheter oc

When developing commercial software products it is crucial to select the right requirements for the right release and to have a short mean-time-to-market (MTTM) in order to be competitive. We report on a simulation of a model of market-driven requirements engineering processes with requirements selection quality as a key aspect. The simulator is built using an open source simulation framework and

This thesis describes the results obtained from investigations carried out on epitaxially grown III-V semiconductor nanowires aimed at improving our understanding of and knowledge on the growth mechanism of nanowires. This is important to be able to control their growth, in order to make future applications possible. Nanowire growth was carried out using chemical beam epitaxy (CBE). This is a gro

Popular Abstract in Swedish Vår arvsmassa består av en cirka två meter lång tråd av DNA. Denna långa DNA-tråd är väl hoppackad och alla kärnbärande celler i kroppen har en kopia av den. Tråden kan delas upp i korta segment som utgör våra gener och mellanliggande segment vars uppgift inte är helt klarlagd. Totalt har vi enligt nuvarande beräkningar cirka 30 000 gener. Dessa gener, som innehåller koThe aim the thesis work was to study the human cystatins C, E/M, F, G, H and I both in vivo and in vitro. A mouse devoid of cystatin C was used for the cystatin C studies. The levels of cystatins C, E/M and F were measured in pleural effusion samples of patients with various lung disorders. Cystatin F protein and RNA levels were measured in the human haematopoietic cell line U937 as well as in cel

The end of the Cold War and the subsequent dismantling of the Soviet Union has brought about fundamental changes in the Baltic Sea region in the last decade. In view of these developments, this article addresses two central questions when it comes to Baltic Sea security—how can the current peace in the Baltic Sea region be characterized and what are the prospects and problems involved in achieving

Popular Abstract in Swedish En cell är den minsta beståndsdelen av det som vi definierar som liv. Cellen avgränsas av ett cellmembran som gör att rätt miljö, dvs rätt koncentration av alla nödvändiga molekyler, upprätthålls inuti cellen. Cellmembranet består bl a av olika slags fett, sk lipider. Många små molekyler kan fritt passera igenom membranet medan andra kräver specifika transportkanaler i The aquaporins (AQPs) belong to a family of water permeable membrane channels found in virtually all living organisms. Thirteen isoforms of mammalian AQPs are found, whereas in Arabidopsis thaliana 35 genes encoding AQPs are found. The AQPs are distributed in different organs, cell types and in different subcellular membranes. The aquaporins form homotetramers where each monomer functions as an in

Redogörelse för två kortlivade grenar av ätten Tersmeden under 1700-talet.

The afternoon effect, i.e., that prices in a sequence of auctions with identical items are decreasing with the order in which the auctions are terminated, is a frequently observed phenomenon in empirical auction studies. Using an unsurpassed amount of data from sequential online train ticket auctions, we investigate two hitherto unexplored dimensions inherent in sequential auctions, namely, the ti