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On the Extraction of Essential Oils by Supercritical Carbon Dioxide and its Influence on the Mesomorphic Phase Structures

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

Culture of Medicinal Plants in the city of Fortaleza as a proposal for the sustainable development of the municipality

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

Framgångsrik Förändring – ett nationellt kommunforskningsprogram om hantering av förändrade ekonomiska förutsättningar och besvärliga situationer

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

Investigation of requirements selection quality in market-driven software processes using an open source discrete event simulation framework

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

Epitaxial growth of semiconductor nanowires

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

Type 2 Cystatins. Studies on the role of the major cystatin, cystatin C, in mice and on properties and distribution of the novel human cystatins F, G, H and I.

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

Stable peace in the Baltic Sea region: Prospects and problems

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

Expression and Function of Human and Plant Aquaporins

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

Decomposing the Afternoon Effect: An Empirical Investigation of Sequential Train Ticket Auctions

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

Three Pion Interferometry in the NA44 Experiment

This thesis presents a three-particle correlation analysis with pions originating from Sulphur-Lead and Lead-Lead collisions at 200 and 158 GeV/c per nucleon respectively, taken by the CERN heavy-ion experiment NA44. The genuine three-body correlation is suppressed in both colliding systems which indicates that the particle production source is partly coherent. The two-dimensional three-particle c