| 11. |
- Dotsenko, Gleb, et al.
(author)
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Material disintegration affects enzymatic determination of beta-glucan in barley and oats
- 2019
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In: Journal of Cereal Science. - : Elsevier BV. - 0733-5210 .- 1095-9963. ; 88, s. 138-144
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Journal article (peer-reviewed)abstract
- Material disintegration is the primary step in beta-glucan determination in cereal grains. This study investigated the effect of disintegration approach on beta-glucan content, determined by an enzymatic method in mature kernels of barley and oat. Milling with a coffee grinder was found to be relevant only for pre-disintegration and homogenization of the grain (4.6% and 3.2% beta-glucan content was found in barley and oats, respectively). Ball milling appeared to be the most efficient approach for reducing material particle size, but resulted in samples with underestimated beta-glucan content (4.6% and 3.3% in barley and oats, respectively). Grinding with mortar and pestle in liquid nitrogen and repeated centrifugal milling were found to be the optimal disintegration methods for barley kernels (5.2% and 4.7-4.8% beta-glucan content, respectively). Grinding with mortar and pestle (either in dry state or in liquid nitrogen) and single centrifugal milling were the optimal disintegration methods for oat kernels (3.6-3.9% and 3.3-3.4% beta-glucan content, respectively).
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| 12. |
- Fei, Mingliang, et al.
(author)
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Achieving of high-diet-fiber barley via managing fructan hydrolysis
- 2022
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In: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 12
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Journal article (peer-reviewed)abstract
- High fructan content in the grain of cereals is an important trait in agriculture such as environmental resilience and dietary fiber food production. To understand the mechanism in determining final grain fructan content and achieve high fructan cereal, a cross breeding strategy based on fructan synthesis and hydrolysis activities was set up and have achieved barley lines with 11.8% storage fructan in the harvested grain. Our study discovered that high activity of fructan hydrolysis at later grain developmental stage leads to the low fructan content in mature seeds, simultaneously increasing fructan synthesis at early stage and decreasing fructan hydrolysis at later stage through crossing breeding is an efficient way to elevate grain diet-fiber content. A good correlation between fructan and beta glucans was also discovered with obvious interest. Field trials showed that the achieved high fructan barley produced over seven folds higher fructan content than control barley and pull carbon-flux to fructan through decreasing fructan hydrolysis without disruption starch synthesis will probably not bring yield deficiency.
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| 13. |
- Kamal-Eldin, Afaf, et al.
(author)
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Dietary fiber components, microstructure, and texture of date fruits (Phoenix dactylifera, L.)
- 2020
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In: Scientific Reports. - : Nature Publishing Group. - 2045-2322. ; 10:1, s. 1-11
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Journal article (peer-reviewed)abstract
- Date fruits vary widely in the hardness of their edible parts and they are classified accordingly into soft, semi-dry, and dry varieties. Fruit texture, a significant parameter in determining consumer acceptance, is related to the tissue structure and chemical composition of the fruit, mainly the ratio of sucrose to reducing sugars. This study aimed to understand the relationship between the chemical composition, microstructure, and texture profile of 10 major Emirati date fruits. The soluble sugars, glucose and fructose, represent ca 80 g/100 g of the fruits on the basis of dry weight (DW) while the dietary fiber contents varied 5.2-7.4 g/100 dg D.W. with lignin being the main determinant of the variability. The textures of the samples were studied using instrumental texture profile analysis. While no correlation was found between the soluble sugar and texture parameters in this study, the different fiber constituents correlated variably with the different parameters of date fruit texture. Lignin, arabinoxylan, galactomannan, and pectin were found to correlate significantly with fruit hardness and the related parameters, gumminess and chewiness. Both lignin and arabinoxylan correlated with resilience, and arabinoxylan exhibited a strong correlation with cohesiveness.
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| 14. |
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| 15. |
- Ahlberg, Eva-Lena, et al.
(author)
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Learning From Incident Reporting? : Analysis of Incidents Resulting in Patient Injuries in a Web-Based System in Swedish Health Care
- 2020
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In: Journal of patient safety. - : Wolters Kluwer. - 1549-8417 .- 1549-8425. ; 16:4, s. 264-268
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Journal article (peer-reviewed)abstract
- Objectives Incident reporting (IR) systems have the potential to improve patient safety if they enable learningfrom the reported risks and incidents. The aim of this study was to investigate incidents registered in an IR system in a Swedish county council.Methods The study was conducted in the County Council of Östergötland, Sweden. Data were retrieved from the IR system, which included 4755 incidents occurring in somatic care that resulted in patient injuries from 2004 to 2012. One hundred correctly classified patient injuries were randomly sampled from 3 injury severity levels: injuries leading to deaths, permanent harm, and temporary harm. Three aspects were analyzed: handling of the incident, causes of the incident, and actions taken to prevent its recurrence.Results Of the 300 injuries, 79% were handled in the departments where they occurred. The department head decided what actions should be taken to prevent recurrence in response to 95% of the injuries. A total of 448 causes were identified for the injuries; problems associated with procedures, routines, and guidelines were most common. Decisions taken for 80% of the injuries could be classified using the IR system documentation and root cause analysis. The most commonly pursued type of action was change of work routine or guideline.Conclusions The handling, causes, and actions taken to prevent recurrence were similar for injuries of different severity levels. Various forms of feedback (information, education, and dialogue) were an integral aspect of the IR system. However, this feedback was primarily intradepartmental and did not yield much organizational learning.
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| 16. |
- Andersson, Annica, et al.
(author)
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4-year-old language repertoire in a counting situation
- 2016
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Conference paper (other academic/artistic)abstract
- We consider an interaction among one of us researchers and four 4-year-old boys who were asked to count beans. By recognizing multiple discourses at play, we problematize the identification of this interaction (and other interactions) as a mathematical (or counting) situation. We identify aspects of the children’s language repertoires and consider how they index various discourses and authority structures. We ask how these discourses intersect in the interaction.
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| 17. |
- Andersson, Annica, 1963-, et al.
(author)
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Agency in mathematics education
- 2011
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In: Proceedings, the 7th Congress of the European Society for Research in Mathematics Education, CERME – 7. ; , s. 1389-1398
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Conference paper (peer-reviewed)abstract
- In this paper we elaborate on the notion of agency. We relate agency to Skovsmose‘s and Biesta‘s frameworks respectively. Both Skovsmose and Biesta are concerned with citizenship education, mathematics education and the purpose of education from a critical position. We explore if and how Skovsmose‘s and Biesta ́s frameworks respectively relate to agency
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| 18. |
- Andersson, Annica, et al.
(author)
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Alkylresorcinols in wheat and rye flour and bread
- 2010
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In: Journal of Food Composition and Analysis. - : Elsevier BV. - 0889-1575 .- 1096-0481. ; 23, s. 794-801
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Journal article (peer-reviewed)abstract
- The alkylresorcinol (AR) content and relative homologue composition were determined in Norwegian flours and bread. The following average values for total AR content (mu g/g dm) were found: wholegrain wheat flour available only to bakers (490) and to both consumers and bakers (710), refined wheat flour (36), wheat bran (3625), wholegrain spelt wheat flour (650), refined spelt wheat flour (80), wholegrain rye flour (972), refined rye flour (90) and rye bran (2753). The C17:0/C21:0 ratio was 0.1 for wheat and 0.8-0.9 for rye, confirming that it can be used to distinguish between wheat and rye. The AR content of Norwegian refined wheat flour was higher than that of Swedish, due to a consistently higher milling extraction rate in Norway. The content of AR varied from 27 to 2766 mu g/g dm in hard bread and 21 to 548 mu g/g dm in soft bread. The highest contents were found in bread with a high proportion of wholegrain flour and/or bran, in agreement with earlier studies. There was a good correlation (r = 0.91) and a high compliance between calculated and analysed AR levels in soft bread, confirming that AR can be used as a biomarker for wholegrain wheat and/or rye content in a cereal product. (C) 2010 Elsevier Inc. All rights reserved.
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| 19. |
- Andersson, Annica, et al.
(author)
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Balancing Acts : Numbers for truth and reconciliation
- 2017
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Conference paper (other academic/artistic)abstract
- Indigenous children were taken from their families and placed in residential schools since the 1870s and until 1996 in Canada with the aim to “kill the Indian in the child.” A Truth and Reconciliation Commission (TRC) was formed in 2008 to provide victims of these schools the opportunity to recount their experiences in a safe and culturally appropriate manner. After five years of gathering these experiences, the TRC report summarizes what was heard, and identifies 94 calls to action. We will show how numbers are used and not used in two TRC documents. We identify the value of such analysis for school and university mathematics teachers as an example of a culturally situated use of number for rhetorical purposes, which relates to the ideas of culturally responsive teaching and critical mathematics education. Not only does this kind of learning address calls for democratic and critical citizenship, it belongs in Canada’s new age of responsiveness to Indigenous experiences of colonialism.
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| 20. |
- Andersson, Annica
(author)
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Chemical and electronic structure of electroluminescent materials and interfaces in polymer-LEDs
- 2000
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Licentiate thesis (other academic/artistic)abstract
- Following the discovery that conjugated polymers can be used as the emitting layer in light emitting devices, extensive studies on these materials have been carried out. In a few years, due to the development of new materials and an increasing knowledge of the underlying chemistry and physics, the performance has improved a lot. One of the important factors that determine the performance of the devices is the chemistry upon interface formation. In the simplest single-layer device there are two interfaces, the interface between the conjugated polymer and the anode and cathode respectively. This thesis deals to a large extent with investigations of the chemical and electronic structure at these interfaces by means of X-ray photoelectron spectroscopy (XPS) and ultraviolet photoelectron spectroscopy (UPS). The first chapters give a short introduction to conjugated polymers, polymer LEDs and photoelectron spectroscopy on conjugated material. The following three chapters provide some background information in the subject areas of the papers with some references to closely related studies. The first paper compares the device performance characteristics upon using two different anodes, indium tin oxide (ITO) and fluorine tin oxide (FTO). The second and third papers report on chemical interactions between the ITO-anode and the precursor polymer of PPV, one of the most frequently used conjugated polymers. The fourth and final paper reports on the early stage of interface formation between two different metal atoms (lithium and sodium), and a conjugated molecule.
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