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| 2. |
- Börjesson, Mikaela, 1987, et al.
(författare)
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Arabinoxylan and Nanocellulose from a Kilogram-scale Extraction of Barley Husk
- 2019
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Ingår i: BioResources. - : BioResources. - 1930-2126 .- 1930-2126. ; 13:3, s. 6201-6220
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Tidskriftsartikel (refereegranskat)abstract
- Processes of extracting hemicellulose from annual plants usually neglect the cellulose fraction. This study explored the possibility of obtaining both a hemicellulose and a cellulose fraction of sufficient quality for further use, with barley husks used as the raw material. An alkaline extraction was used to isolate the biopolymers by a process in which sodium dithionite replaced the traditional sodium borohydride as the reducing agent. The cellulose fraction was successfully transformed into nanocellulose by sulfuric acid hydrolysis, and the obtained hemicellulose (i.e., arabinoxylan) displayed carbohydrate composition characteristics similar to those previously reported in the literature for processes of extracting hemicellulose from barley husks. Using this methodology, both the cellulose and hemicellulose can be isolated in high quantities of dry material and used for transformation into new bio-based materials.
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| 3. |
- Davidsson, Pia, 1962, et al.
(författare)
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Clinical mass spectrometry in neuroscience. Proteomics and peptidomics.
- 2003
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Ingår i: Cellular and molecular biology (Noisy-le-Grand, France). - 0145-5680 .- 1165-158X. ; 49:5, s. 681-8
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Forskningsöversikt (refereegranskat)abstract
- In this review we discuss the merits and drawbacks with the use of proteomic and peptidomic strategies for identification of proteins and peptides in their multidimensional interactions in complex biological processes. The progress in proteomics and peptidomics during the last years offer us new challenges to study changes in the protein and peptide synthesis. These strategies also offer new tools to follow post-translational modifications and other disturbed chemical processes that may be indicative of pathophysiological alteration(s). Furthermore these techniques can contribute to improvements in the diagnosis and therapy of neurodegenerative diseases, such as Alzheimer's disease, and psychiatric diseases, as depression and post traumatic stress disorders. We also consider different practical aspects of the applications of mass spectrometry in clinical neuroscience, illustrated by example from our laboratories. The new proteomic and peptidomic strategies will further enable the progress for clinical neuroscience research.
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| 4. |
- Gumbel, Jörg, et al.
(författare)
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The MATS satellite mission - gravity wave studies by Mesospheric Airglow/Aerosol Tomography and Spectroscopy
- 2020
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Ingår i: Atmospheric Chemistry And Physics. - : COPERNICUS GESELLSCHAFT MBH. - 1680-7316 .- 1680-7324. ; 20:1, s. 431-455
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Tidskriftsartikel (refereegranskat)abstract
- Global three-dimensional data are a key to understanding gravity waves in the mesosphere and lower thermosphere. MATS (Mesospheric Airglow/Aerosol Tomography and Spectroscopy) is a new Swedish satellite mission that addresses this need. It applies space-borne limb imaging in combination with tomographic and spectroscopic analysis to obtain gravity wave data on relevant spatial scales. Primary measurement targets are O-2 atmospheric band dayglow and nightglow in the near infrared, and sunlight scattered from noctilucent clouds in the ultraviolet. While tomography provides horizontally and vertically resolved data, spectroscopy allows analysis in terms of mesospheric temperature, composition, and cloud properties. Based on these dynamical tracers, MATS will produce a climatology on wave spectra during a 2-year mission. Major scientific objectives include a characterization of gravity waves and their interaction with larger-scale waves and mean flow in the mesosphere and lower thermosphere, as well as their relationship to dynamical conditions in the lower and upper atmosphere. MATS is currently being prepared to be ready for a launch in 2020. This paper provides an overview of scientific goals, measurement concepts, instruments, and analysis ideas.
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| 5. |
- Härdelin, Linda, 1977, et al.
(författare)
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Hemicellulose foam
- 2014
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Ingår i: Proc Materials for Tomorrow. ; , s. Nr 24-
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Konferensbidrag (övrigt vetenskapligt/konstnärligt)
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| 6. |
- Karlsson, Niklas, et al.
(författare)
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Awarding a Community Membership Badge - Teachers’ Development of Digital Competences in a cMOOC
- 2014
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Ingår i: Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics). - Cham : Springer International Publishing. - 1611-3349 .- 0302-9743. ; 8699, s. 162-171
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Konferensbidrag (refereegranskat)abstract
- In this article the badge given in connection with a cMOOC designed by and for teachers is explored. Digitala skollyftet aimed to raise the digital competence amongst teachers in Swedish schools. The participants in Digitala skollyftet could apply to be awarded a badge for their participation. The awarding process, as well as the participation, of a small group of people who were awarded badges is analysed. Blog-posts were taken as evidence when applying for badges and blogging thereby became an important way to participate. Blogs can be regarded as exhibition spaces where the blogger exhibits and reflects on their learning process. Results show that there is a difference in how the blogs are designed, depending on the level of experience from the blogger. To a large extent, forums, such as Facebook and Twitter, are used as performance spaces, which facilitate the interaction and discussion with other participants.
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| 8. |
- Karlsson, Stig, et al.
(författare)
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Utvecklingsprocesser
- 2008
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Ingår i: Arbete och teknik på människans villkor. - Stockholm : Prevent. - 9789173650373 ; , s. 38-
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Bokkapitel (övrigt vetenskapligt/konstnärligt)
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