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BACKGROUND: Viral gene therapy of malignant brain tumors has been restricted by the limited vector distribution within the tumors. Multipotent mesenchymal stromal cells (MSCs) and other precursor cells have shown tropism for gliomas, and these cells are currently being explored as potential vehicles for gene delivery in glioma gene therapy. OBJECTIVE: To investigate MSC migration in detail after i

This paper evaluates to what extent policy-makers have been able to promote the creation and consolidation of comprehensive research groups that contribute to the implementation of a successful innovation system. Malmquist productivity indices are applied in the case of the Spanish Food Technology Program, finding that a large size and a comprehensive multi-dimensional research output are the key

Med en s.k. Pressure Plate utrustning kan porstukturen hos porösa material undersökas. För grovporösa material, t.ex. olika jordarter, kan även kapillära stighöjden -”sugförmågan”- och kornstorleken bestämmas på ett enkelt sätt. Metoden går ut på att man gradvis pressar ut vatten ur ett vattenmättat prov genom att utsätta detta för stegvis ökat tryck. Det finns ett enkelt samband -Laplace´s lag- m

The impossibility results of Bovens and Hartmann (2003) and Olsson (2005) call into question the strength of the connection between coherence and truth. As part of the inquiry into this alleged link, I define a notion of degree of truth-conduciveness, relevant for measuring the usefulness of coherence measures as rules-of-thumb for assigning probabilities in situations of partial knowledge. I use

Inter-firm job switching of workers is a much cited but seldom measured source of the productivity advantages of spatial employment density. It has been advanced as a conduit for localized knowledge flows as well as labor market matching efficiency. Using a matched employer-employee dataset for Sweden, we estimate the influence spatial employment density has on the probability of inter-firm job sw

This study evaluated the effects of retinal ischemia-reperfusion (IR) injury and pre-treatment with the potent and specific aldose reductase inhibitor fidarestat on apoptosis, aldose reductase and sorbitol dehydrogenase expression, sorbitol pathway intermediate concentrations, and oxidative-nitrosative stress. Female Wistar rats were pre-treated with either vehicle (N-methyl-D-elucamine) or fidare

Based on atomic force microscopy nanoindentation measurements of phage λ, we previously proposed a minimal model describing the effect of water hydrating DNA that strengthens viral capsids against external deformation at wild-type DNA packing density. Here, we report proof of this model by testing the prediction that DNA hydration forces can be dramatically decreased by addition of multivalent ion

Telomere length has been associated with risk of many cancers, but results are inconsistent. Seven single nucleotide polymorphisms (SNPs) previously associated with mean leukocyte telomere length were either genotyped or well-imputed in 11 108 case patients and 13 933 control patients from Europe, Israel, the United States and Australia, four of the seven SNPs reached a P value under .05 (two-side

We demonstrate radio frequency single-electron transistors fabricated from epitaxially grown InAs/InP heterostructure nanowires. Two sets of double-barrier wires with different barrier thicknesses were grown. The wires were suspended 15 nm above a metal gate electrode. Electrical measurements on a high-resistance nanowire showed regularly spaced Coulomb oscillations at a gate voltage from -0.5 to

Popular Abstract in Swedish Livmoderhalscancer är den näst vanligaste cancerformen att drabba kvinnor. Behandlingen baseras på vilket stadium sjukdomen befinner sig i och innebär en avsevärd risk för biverkningar. FDG-PET är en undersökningsmetod som kan visualisera områden i kroppen med ökat sockerupptag. Cancerceller har en kraftigt ökad omsättning av socker och därmed kan tumörer avbildas med FCervical cancer is the second most common cancer in females. The treatment, based on clinical FIGO stage, carries a significant risk of side effects. FDG-PET enables non-invasive studies of glucose metabolism. Cancer cells show an increased glucose uptake and metabolism that can be visualised and further analysed. The aims of this thesis were to evaluate FDG-PET in the clinical management of cerv

Popular Abstract in Swedish Invasiv candidiasis är en allvarlig jästsvampinfektion hos redan svårt sjuka patienter och denna infektion har ökat under de senaste årtiondena. Blododling, som ärreferensdiagnostisk metod för denna infektion, har relativt låg känslighet liksom detektion av Candidaspecifika antikroppar och antigener. Utvecklingen av PCR baserade diagnostik går långsamt och det saknas stInvasive candidiasis (IC) is a serious condition and timely diagnosis with early initiation of antifungal therapy is imerative for improving outcomes. Arabinitol is a sugar alcohol with two stereoisomers, D-arabinitol (DA) and L-arabintiol (LA). Several pathogenic Candida species produce DA in vitro and high DA levels have been detected in serum and urine in patients with IC. Renal dysfunction aff

Flower colour is an important signal used by flowering plants to attract pollinators. Many anthophilous insects have an innate colour preference that is displayed during their first foraging bouts and which could help them locate their first nectar reward. Nevertheless, learning capabilities allow insects to switch their colour preferences with experience and thus, to track variation in floral nec

Temperature-corrected oxygen measurements were performed by using multi-mode diode laser correlation spectroscopy at temperatures ranging between 300 and 473 K. The experiments simulate in situ monitoring of oxygen in coal-combustion exhaust gases at the tail of the flue. A linear relationship with a correlation coefficient of -0.999 was found between the evaluated concentration and the gas temper

Hydroquinone glycosides were produced by transglycosylation reactions catalyzed by cyclodextrin glucanotransferase (CGTase) from Thermoanaerobacter sp. (Toruzyme (R) 3.0L). The reactions were carried out in an aqueous system containing hydroquinone (HQ) and maltodextrin as acceptor and donor substrate molecules respectively. The conditions for the synthesis of hydroquinone glucoside (alpha-arbutin