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Time-resolved terahertz spectroscopy reveals the influence of charged sensitizing quantum dots on the electron dynamics in ZnO

Photoinitiated charge carrier dynamics in ZnO nanoparticles sensitized by CdSe quantum dots is studied using transient absorption spectroscopy and time-resolved terahertz spectroscopy. The evolution of the transient spectra shows that electron injection occurs in a two-step process, where the formation of a charge transfer state (occurring in several picoseconds) is followed by its dissociation wi

Impact of Surgical Techniques Used for Mitral Valve Repair on Hemodynamic Performance

AbstractBackground Mitral regurgitation (MR) has many etiologies; the most common is degenerative disease. If not corrected, severe MR may cause left and right ventricular heart failure. Mitral valve (MV) repair is the gold standard for treatment of MR. All repair techniques include MV annuloplasty, but various techniques are employed to repair the valvular apparatus. The classical technique of le

Imatinib increases oxygen delivery in extracellular matrix-rich but not in matrix-poor experimental carcinoma

Background: Imatinib causes increased turnover of stromal collagen, reduces collagen fibril diameter, enhances extracellular fluid turnover and lowers interstitial fluid pressure (IFP) in the human colonic carcinoma KAT-4/HT-29 (KAT-4) xenograft model. Methods: We compared the effects of imatinib on oxygen levels, vascular morphology and IFP in three experimental tumor models differing in their co

A radial head prosthesis appears to be unnecessary in Mason-IV fracture dislocation

Background and purpose — Previous reports on elbow injuries with concomitant comminute radial head fracture are difficult to interpret, since they include an array of different soft-tissue and bony injuries around the elbow. We focused on Mason-IV fracture dislocations of the elbow and retrospectively reviewed 2 treatment options: radial head resection or replacement with a radial head arthroplast

Riskhanteringsprocessen och flödessäkerheten

I denna publikation karakteriseras riskhanteringsprocessen som bestående av 14 olika steg och varje steg beskrivs och diskuteras. Även utvidgade aspekter på riskhanteringsprocessen samt riskhanteringens ekonomiska betydelse behandlas.Dagens moderna samhälle är ett i många avseenden sårbart samhälle till stor del uppbyggt kring försörjningskedjor (supply chains). I dessa hårt integrerade kedjor med

Three-dimensional functional human neuronal networks in uncompressed low-density electrospun fiber scaffolds

We demonstrate an artificial three-dimensional (3D) electrical active human neuronal network system, by the growth of brain neural progenitors in highly porous low density electrospun poly-ε-caprolactone (PCL) fiber scaffolds. In neuroscience research cell-based assays are important experimental instruments for studying neuronal function in health and disease. Traditional cell culture at 2D-surfac

Detector Development, Source Characterization and Novel Applications of Laser Ion Acceleration

The main focus of the work presented in this thesis is on experimental studies oflaser acceleration of protons and other positive ions from solid targets. The topic is explored from three different angles: firstly, the development of diagnostics adapted to the ion pulses, secondly, the characterization of the source of the energetic particles and, finally, the application of laser-accelerated prot

Ion currents of cardiomyocytes in different regions of the Göttingen minipig heart

Introduction The Göttingen minipig is a promising model for pharmacological safety assessment and for translational research in cardiology. We have examined the main ion currents in cardiomyocytes of the minipig heart. Methods Cardiac cells were isolated from different cardiac regions (endo-, mid- and epicardial left ventricle and right ventricle) from Göttingen minipigs and examined using the who

ASLA 50 år : Ett samtal om tillämpad språkvetenskap - då, nu och i framtiden

Den svenska föreningen för tillämpad språkvetenskap (Association Suédoise de Linguistique Appliquée, ASLA) bildades formellt i april 1966 och firade således 50 år som förening under 2016. Jubileumet uppmärksammades på olika sätt under året. I samband med ASLA-symposiet i Uppsala den 21-22 april 2016 hölls ett panelsamtal på temat om tillämpad språkvetenskap då, nu och i framtiden. I den här texten

Estimation and Testing in Panel Data with Cross-Section Dependence

This thesis makes a contribution the econometrics of panel data with cross-section dependence (CSD). It consists of five self-contained papers. The most popular approach to account for CSD is to attribute the co-movements of observed variables across entities to unobserved common factors and to estimate these factors via simple cross-section averages of the data. The chapters in this thesis invest

A multi-criteria decision-model for prioritising stakeholder motives in city logistics

PurposeThe purpose is to provide a structured method for prioritising among the diversity of motives and goals of stakeholders involved in city logistics.Design/methodology/approachThe paper is based on a three-year participant observation study in a city logistics project including ten stakeholders. The data relate to the understanding gained during the three years of study and nine semi-structur

DCIP tomografi för kartläggning av jorddjup och strukturer i berg

Det finns planer på att bygga ett energilager i berget vid Önneslöv nära Dalby i Skåne. Berggrunden utgörs av en del av Romeleåsen och består huvudsakligen av gnejs med inslag av amfibolit och diabasgångar. Området ligger omedelbart söder om Sydstens stora bergtäkt, där det framgår att berget till stora delar är kraftigt uppsprucket med lervittrade zoner av olika storlek. I samband med byggande geThere are plans to build an energy storage in the rock at Önneslöv near Dalby in Skåne. The bedrock is of a part of Romeleåsen and mainly comprises gneiss, with elements of amphibolite and dolerite intrusions. The area is located immediately south of the Sydsten’s large rock quarry, which shows that the rock is mostly heavily fractured with clay weathered zones of different sizes. In connection wi