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- Gosch, M., et al.
(författare)
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Parallel dual-color fluorescence cross-correlation spectroscopy using diffractive optical elements
- 2005
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Ingår i: Journal of Biomedical Optics. - : SPIE-Intl Soc Optical Eng. - 1083-3668 .- 1560-2281. ; 10:5
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Tidskriftsartikel (refereegranskat)abstract
- Dual-color cross-correlation spectroscopy allows the detection and quantification of labeled biomolecules at ultra-low concentrations, whereby the sensitivity of the assay correlates with the measurement time. We now describe a parallel multifocal dual-color spectroscopic configuration employing multiple avalanche photodiodes and hardware correlators. Cross-correlation curves are obtained from several dual-color excitation foci simultaneously. Multifocal dual-color excitation is achieved by splitting each of two laser beams (488 and 633 nm) into four sub-beams with the help of two 2 X 2 fan-out diffractive optical elements (DOES), and subsequent superposition of the two sets of four foci. The fluorescence emission from double-labeled biomolecules is detected by two 2 x 2 fiber arrays.
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- Haugen, H. A., et al.
(författare)
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CCS in the Skagerrak/Kattegat area
- 2011
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Ingår i: Energy Procedia. 10th International Conference on Greenhouse Gas Control Technologies; Amsterdam; 19-23 September 2010. - : Elsevier BV. - 1876-6102. ; 4, s. 2324-2331
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Konferensbidrag (refereegranskat)abstract
- This paper presents an ongoing project with the aim to assess a CO 2 infrastructure in the Skagerrak/Kattegat region (the sea bordered by north of Denmark, south coast of Norway and the west coast of Sweden). The area comprises 10-12 CO2 emission sources of more than 0.5 Mt/year. The geological and geophysical assessment of CO2 storage potential in the described area as well as reservoir modelling and simulations are performed in work package (WP) 1. The results from WP1 are used in the other work packages. Candidate storage sites are matched with those point sources in the region that are technically and economically feasible for CO2 capture, together with an assessment of the connecting infrastructure needs. WP 2 focuses on identifying optimal technological CO2 infrastructure solutions. Sources-to-sink solutions are in the process of being developed based on input from WP1 and WP3. Assessment of the build-up of a complete CCS infrastructure from a system perspective is the overall focus of WP 3, covering economical, practical and judicial aspects. The project group explores the economic potential for capture at each individual site including looking at other CO2 mitigation options and propose relevant capture technology with cost estimations. Dissemination of project results is organized in a separate work package, WP4.
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- Henriksson, M, et al.
(författare)
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Nuclear colocalization of c-myc protein and hsp70 in cells transfected with human wild-type and mutant c-myc genes
- 1992
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Ingår i: Experimental Cell Research. - 0014-4827. ; 203:2, s. 94-383
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Tidskriftsartikel (refereegranskat)abstract
- Using immunofluorescence and electron microscopy we have studied the localization of wild-type and mutant c-myc proteins transiently expressed in CV-1 cells. In agreement with our previous observations, wild-type c-myc protein accumulated in large amorphous globules in the nucleus. All mutant proteins tested accumulated in the nucleus as well, but gave rise to morphologically different inclusion bodies. Many small globules appeared in cells transfected with D145-262 (deletion of amino acids 145-262), while cells transfected with D371-412 or D414-433 generated structures looking like a fine network or like beads on a string. In addition, a particulate cytoplasmic staining appeared in some cells transfected with the wild-type gene and in cells transfected with mutants D145-262 or D414-433. Since the c-myc protein has been reported to stimulate expression of exogenous hsp70 protein, we also examined the intracellular distribution of hsp70 in the transfected cells. Double immunofluorescence microscopy revealed that hsp70 codistributed with the c-myc protein in distinct globules in the nucleus of many but not all myc-positive cells. However, the levels of hsp70 transcripts were not significantly raised compared to nontransfected and vector-transfected cells. Likewise, the levels of hsp70 protein did not vary significantly. These findings indicate that overexpression of c-myc stimulates translocation of preexisting hsp70 from the cytoplasm into the nucleus, rather than influencing hsp70 expression. Conceivably, this may represent one of several mechanisms whereby the cell deals with excessive amounts of c-myc protein.
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- Arvidsson, Patrik, 1969-
(författare)
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Assessment of participation in people with a mild intellectual disability
- 2013
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- The overall aim of this doctoral thesis was to explore an assessment of participation according to the International Classification of Functioning, Disability and Health (ICF) in people with a mild intellectual disability.Study I used secondary data and explored how participation can be assessed. Study II-IV explored participation empirically regarding 68 everyday activities from all nine life domains according to the ICF. Study II explored assessment of self-rated participation by investigating to what extent perceived ability, actual performance and perceived importance correlated. Study III-IV explored the contribution of perceived importance to an assessment of participation; study III by investigating frequencies of everyday activities regarding performance and importance separately as well as regarding combined measures of performance and perceived importance, and study IV by comparing proxy ratings with self-rated measures regarding ability and measures of participation. Study III also correlated measures of participation with a single-item measure of subjective general well-being and study II and IV investigated internal consistency in terms of Cronbach’s alpha. Study II and III included 55 and 69 individuals with intellectual disability respectively. Study IV included 40 individuals with intellectual disability and 40 proxy persons. The informants from the target group were partly the same.Study II and IV supported the suggestions from study I that participation should be assessed by self-ratings and study II found that this is an appropriate method also to people with a mild intellectual disability. Study III showed that participation is related to subjective well-being. Study III-IV found somewhat different results if measuring participation as performance solely or as a combination of performance and perceived importance. Overall, the results of the thesis suggest that performance solely might be sufficient to assess participation at a group level but in a clinical context, when the knowledge of a certain individual is of interest, the perceived aspect of involvement is necessary to include in an assessment of participation.
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