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  • 301.
    Hansson, Örjan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Preservice teacher's conceptions of the function concept and its significance in mathematics2007Ingår i: Relating practice and research in mathematics education: proocedings of NORMA 05, Fourth Nordic Conference on Mathematics Education / [ed] C Bergsten, B Grevholm, H Stromskag Måsoval & F Rönning, Trondheim: Tapir Academic Press , 2007, s. 271-285Konferensbidrag (Refereegranskat)
    Abstract [en]

    The purpose of this paper is to examine preservice teachers’ conceptions of the function concept as well as their conceptions of the significance of functions in mathematics. A further purpose is to study the effects of an intervention regarding the function concept. Two groups of preservice teachers who are specializing in mathematics and science are participating in the study. The findings indicate changes, firstly in the preservice teachers’ view on the function concept related to the intervention, and secondly with respect to different themes of relevance in their reasoning on the significance and presence of functions in various contexts.

  • 302.
    Hansson, Örjan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA).
    Preservice teachers' views of the presence of functions in school mathematics2010Ingår i: Proceedings of the 34th Conference of the. International Group for the Psychology of Mathematics Education: Mathematics in different settings / [ed] Pinto, M.M.F., Kawasaki, T.F., Belo Horizonte, Brazil, 2010, s. (vol 3) 49-56Konferensbidrag (Refereegranskat)
    Abstract [en]

    This paper examines preservice teacher's views on the function concept. It includes two groups of preservice teachers as they consider the presence of functions in school mathematics. The findings imply that preservice teachers will give issues related to the concept of function low priority in their teaching, and that they require additional support to develop their views on functions. The study illustrates that discussion about fundamental concepts should be an essential component in the preparation of preservice teachers. It also illustrates that reflection on the presence of functions impacts preservice teachers' reasoning, and serves as a starting point for valuable didactical discussions, which are related to subject matter knowledge, pedagogical content knowledge and curricular knowledge.

  • 303.
    Hansson, Örjan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Prospective teachers’ reasoning on linear and quadratic functions: a case study2011Ingår i: Proceedings of the 35th Conference of the International Group for the Psychology of Mathematics Education / [ed] Ubuz, Behiye, Ankara, Turkey: IGPME , 2011, Vol. 3, s. 17-24Konferensbidrag (Refereegranskat)
  • 304.
    Hansson, Örjan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA).
    Reflektionsverktyg - att utveckla modelleringsförmåga2013Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 305.
    Hansson, Örjan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA).
    Resonemangsförmåga2014Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 306.
    Hansson, Örjan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA).
    Resonemangsförmåga2013Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 307.
    Hansson, Örjan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA).
    Samband och förändring2013Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 308.
    Hansson, Örjan
    Högskolan Kristianstad, Fakulteten för lärarutbildning, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Samband och förändring: en översikt med exempel på uppgifter2015Övrigt (Övrigt vetenskapligt)
  • 309.
    Hansson, Örjan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA).
    The significance of facilitating feedback of evoked concept images to the concept definition: a case study regarding the concept of function2007Ingår i: Proceedings of the 31st Conference of the International Group for the Psychology of Mathematics Education: vol. 1 / [ed] Woo, J.H., Lew, H.C., Park, K.S. & D.Y., Seoul, South Korea, 2007, s. 224-Konferensbidrag (Refereegranskat)
  • 310.
    Hansson, Örjan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    The significance of facilitating feedback of evoked concept images to the concept definition: a case study regarding the concept of function2007Ingår i: Proceedings of the 31st Conference of the International Group for the Psychology of Mathematics Education / [ed] J H Woo, H C Lew, K S Park, & D Y Seo, Seoul, South Korea: Seoul National University , 2007, s. 224-Konferensbidrag (Refereegranskat)
    Abstract [en]

    This research examines one high achieving preservice teacher’s conceptions of the function concept and her line of reasoning as she after a calculus course tries to make clear what constitutes a function. A group of twenty-five preservice teachers specializing in mathematics and science participated in the study. One preservice teacher, called Emma, who completed the calculus course with “high pass” is the research subject for the case study in this presentation. The concepts of function and equation are closely linked for the preservice teacher in question. In the advancement of the preservice teacher’s reasoning on functions, feedback from evoked concept images to the concept definition is central, and leads her to a more developed understanding of what constitutes a function. The findings of the research call attention to one component of importance in the development of a concept image, namely, the feedback-process from evoked concept images to the concept definition. Based on the case study results, preservice teachers seemingly need to be exposed to problem formulations concerning the relationships of the function concept to other mathematical concepts (this conclusion is also supported by Hansson, 2006). It was made clear during the interview with Emma that she is not experienced in working with such problems. During an individual’s reasoning, the concept image will almost always be evoked, whereas the concept definition will remain inactive or even be forgotten (Tall & Vinner, 1981). The study indicates that one significant component in the development of preservice teachers’ understanding of the function concept could be to stimulate a feedback of evoked concept images to the concept definition in various contexts, as when Emma comes to a better understanding in the interview. The results of the study also support Vinner’s (1991, 1992) suggestion that this type of reconnection is primarily possible with problems that are not of the standard variety.

    References

    Hansson, Ö. (2006). Studying the views of preservice teachers on the concept of function(LTU doctoral thesis series No. 2006:22). Luleå: Luleå University of Technology. Tall, D., & Vinner, S. (1981). Concept images and concept definition in mathematics with particular reference to limits and continuity. Educational Studies in Mathematics, 12, 151-169.Vinner, S. (1991). The role of definitions in the teaching and learning of mathematics. In D.Tall (Ed.), Advanced mathematical thinking (pp. 65-81). Dordrecht: Kluwer.Vinner, S. (1992). The function concept as prototype for problems in mathematics. In G.Harel & E. Dubinsky (Eds.), The concept of function: Aspects of epistemology and pedagogy (pp. 195-213). Washington, DC: Mathematical Association of America.

  • 311.
    Hansson, Örjan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA).
    Tillfällen att utveckla fördjupad förståelse - en bristvara?2013Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 312.
    Hansson, Örjan
    et al.
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Hansson, Lena
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Juter, Kristina
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Redfors, Andreas
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    An attempt to investigate the use of mathematics in physics classrooms2015Ingår i: Proceedings of the 39th Conference of the International Group for the Psychology of Mathematics Education / [ed] Kim Beswick, Tracey Muir, Jill Wells, 2015, Vol. 3, s. 25-32Konferensbidrag (Refereegranskat)
    Abstract [en]

    We outline a framework to study the use of mathematics in physics classrooms. The framework focuses on the relations made between Reality, Theoretical models and Mathematics. In this paper the analyses of one teacher and her 3rd year classes at secondary school are presented. The results show that phenomena in reality are often used as a short prelude to put focus on the relationship theoretical model and mathematics. Mathematics is generally used in an instrumental way to handle various formulas without further insight or discussion of the related models or their relation to reality. There is a lack of varied communication with a structural use of mathematics, i.e., mathematics used to support reasoning in relation to a theoretical model, highlighting the meaning of concepts and models in the studied classrooms. 

  • 313.
    Hansson, Örjan
    et al.
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Holmberg, Inger
    Högskolan Kristianstad.
    Grevholm, Barbro
    Högskolan Kristianstad.
    Hur en innovativ lärandemiljö kan stödja  utvecklingen av lärarstuderandes kommunikationsförmåga i matematik2003Ingår i: / [ed] Ingrid Järnefelt, Lund: Lunds universitet , 2003, s. 45-48Konferensbidrag (Refereegranskat)
  • 314.
    Hansson, Örjan
    et al.
    Högskolan Kristianstad, Fakulteten för lärarutbildning, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Juter, Kristina
    Högskolan Kristianstad, Fakulteten för lärarutbildning, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Fakulteten för lärarutbildning, Avdelningen för matematik- och naturvetenskapernas didaktik.
    Drug calculations in nursing education: is mathematics a problem2018Ingår i: Proceedings of the 42nd Conference of the International Group for the Psychology of Mathematics Education, Umeå, 2018, Vol. 5, s. 244-244Konferensbidrag (Refereegranskat)
    Abstract [en]

    This study concerns the teaching of drug calculations in nursing education. It is part of a larger study and focuses on the first year of a three-year nursing program when the students are introduced to drug calculations. The students who attended the first year on the program was divided into smaller groups. We followed one group where the lecture and problem-solving session was video recorded.It is well known that drug calculations are a critical component in nursing practice. Nurses need to do drug calculations correctly and as part of their nursing education must take a drug calculation test obtaining no errors in the results. However, in spite of drug calculation tests many adverse events occur in nursing practice (e.g., Røykenes & Larsen, 2010). Studies of nursing practice show that mathematics enters practices in a rich variety of ways and that it is not advisable to avoid the complexity of a situation by only using standard methods to capture its visible arithmetic and teach it (Coben & Weeks, 2014). To restrict the teaching to an elementary use of mathematics will not cover all the knowledge that is actually relevant to practice. In routine use, mathe- matical reasoning can be almost invisible and many artefacts in the nursing profession often depends on this invisibility. But at times nurses will need to understand under- lying mathematical models to sort out what is happening or what has gone wrong (Pozzi, Noss & Hoyles, 1998).The results of the current study show that the teaching of first-year students did not support conceptual understanding of mathematics including discussions about mathe- matical reasoning or relevant mathematical concepts. Instead, the students were ad- vised to forget their previous mathematical skills – in particular if they felt insecure about mathematics – and apply “safe” methods with a strong focus on instrumental use. For example, in drug dose calculations a triangular arrangement of dosage (d), concentration (c) and volume (v) was used in relation to the “formula” d=cv, instead of reasoning about how to solve an equation. Discussions about the use of  mathematicsand underlying models were absent in the teaching.

  • 315.
    Hansson, Örjan
    et al.
    Högskolan Kristianstad, Fakulteten för lärarutbildning, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Juter, Kristina
    Högskolan Kristianstad, Fakulteten för lärarutbildning, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Fakulteten för lärarutbildning, Avdelningen för matematik- och naturvetenskapernas didaktik.
    Drug calculations in nursing education: is mathematics a problem?2018Ingår i: Proceedings of the 42nd conference of the international group for the Psychology of mathematics education / [ed] E. Bergqvist, M. Österholm, C. Granberg & L. Sumpter, 2018, Vol. 5, s. 244-Konferensbidrag (Övrigt vetenskapligt)
  • 316. Hart, J.R.
    et al.
    Tiev, V.
    Stovin, V.R.
    Lacoursière, Jean O.
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).
    Guymer, I.
    The effects of vegetation on the hydraulic residence time of stormwater ponds2014Ingår i: Proceedings of the 19th IAHR-APD Congress 2014, Hanoi, Vietnam, 2014Konferensbidrag (Refereegranskat)
    Abstract [en]

    Storm water ponds treat polluted run-off from urban areas, highways and agricultural land. Vegetation plays a key role in water treatment, but further understanding is required to identify how vegetation density and spatial distribution within a pond affect the residence time, an important parameter with respect to water treatment. This paper presents results from a preliminary study where the residence time distribution and discharge of a water treatment pond were measured at two stages within the vegetation’s seasonal growth cycle, representing the minimum and maximum states of the vegetation’s density. The results show clear and significant differences between the residence time distribution for the two cases, and highlight the need for further work on the topic.

  • 317.
    Head, Lesley
    et al.
    Australian Centre for Cultural Environmental Research (AUSCCER), University of Wollongong.
    Regnéll, Joachim
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Nature, culture and time: contested landscapes among environmental managers in Skåne, southern Sweden2012Ingår i: Peopled landscapes: archaeological and biogeographic approaches to landscapes / [ed] Edited by Simon G. Haberle and Bruno David, Canberra: ANU E Press, 2012, s. 221-237Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 318.
    Hellberg, Lina
    et al.
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Pedagogik.
    Thulin, Susanne
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Pedagogik.
    Redfors, Andreas
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA).
    Science in Early Childhood Education - Teachers' communication2016Ingår i: Abstract Book, 2016Konferensbidrag (Refereegranskat)
    Abstract [en]

    To develop knowledge about how science is communicated by the teachers in the preschool context, specificallyteachers' communication about science while planning the intended object of learning. Preschool teachers'attitudes and perceptions of the mission, and what the child in preschool should and can learn, is of outmostimportance for work with science, but also preschool teachers' knowledge of both science and science education(Eshach & Fried, 2005; Fleer, 2009; Thulin, 2011). However, the mission is manifold and further investigations ofhow different aspects come into play when planning science activities are needed. The theoretical framework isprimarily based on phenomenography focusing on developmental pedagogy (Marton & Booth, 1997; PramlingSamuelsson & Asplund Carlsson, 2008). Design-based research (Barab & Squire, 2004) is used to develop andimplement viable practices concerning science activities with a focus on communication. Video and audio areused to collect data. The research adheres to the ethical guidelines of the Swedish Research Council. Allparticipants and children's caregivers are informed and agree to voluntary and anonymous participation with aright to abandon participation. The video-data collection of teachers planning consecutive activities withchildren focusing the intended object of learning (forces and motion) is on-going. Initially, the teachers tend tofocus prerequisites and other aspects of their mission, the relation to the object of learning will be problematizedduring the symposium. The importance of content specific and educational knowledge, and teachers'experiences of their mission is stressed. The significance and complexity of this intertwined perspectives arediscussed.

  • 319.
    Helldén, Gustav
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA).
    Elevers kunskapsutveckling och förståelse av ekologiska processer2013Bok (Övrigt vetenskapligt)
    Abstract [sv]

    Bokens innehåll bygger på en longitudinell studie då författaren följde hur enskilda elevers förståelse av ekologiska processer utvecklades från årskurs två till årskurs åtta i grundskolan samt hur eleverna såg på sin kunskapsutveckling i början av sista terminen på gymnasiet. Författaren beskriver och diskuterar elevers förståelse av ett antal ekologiska fenomen som handlar om villkor för liv, växande och nedbrytning i naturen samt om blommans roll.

    Några av frågorna som ställs i boken är:

    • Vilka föreställningar har elever om de gröna växternas villkor för liv och växande?

    • Vad föreställer sig elever att det händer med döda växter på marken? Hur uppfattar de att jord bildas?

    • Hur föreställer sig elever att tillväxten från frö till fullbildad växt går till?

    • Vilka tankar har elever om blommans roll?

    Boken vänder sig till lärarstudenter och yrkesverksamma lärare.

  • 320.
    Helldén, Gustav
    et al.
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Högström, Per
    Luleå tekniska universitet.
    Jonsson, Gunnar
    Luleå tekniska universitet.
    Karlefors, Inger
    Luleå tekniska universitet.
    Vikström, Anna
    Luleå tekniska universitet.
    Vägar till naturvetenskapens värld: ämneskunskap i didaktisk belysning2015 (uppl. 2)Bok (Övrigt vetenskapligt)
    Abstract [sv]

    Bokens författare börjar med att behandla de små atomerna, därefter cellen och villkoren för några olika livsformers liv och växande, och avslutar i ekosystemen och våra mänskliga samhällen. Deras utgångspunkt är övertygelsen om att det naturvetenskapliga ämnesinnehållet ska behandlas tillsammans med de ämnesdidaktiska frågorna.Den didaktiska belysningen är inspirerad av variationsteorin, en teori om lärande som utgår från att variationen är en viktig förutsättning för att vi ska kunna urskilja saker i vår omvärld. Fokus ligger här på ”lärandets objekt”, det vill säga det som eleverna förväntas lära sig, hur detta lärande görs möjligt och vad eleverna sedan faktiskt lär sig.Boken är främst tänkt som kurslitteratur inom lärarutbildningen och grundläggande fortbildningar för förskollärare och lärare. Den kan också användas i olika barnledarutbildningar inom natur- och fritidssektorn. Intresserade lärare som vill bredda sina kunskaper i ämnet kan också ha stor glädje av boken.Denna nya upplaga har kompletterats med två nya kapitel: ett grundläggande från fysikens område och ett om rymden.

  • 321.
    Henmyr, Viktor
    et al.
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Biomedicin. Lund University.
    Carlberg, Daniel
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Biomedicin.
    Manderstedt, Eric
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Plattformen för molekylär analys. Lund University.
    Lind-Halldén, Christina
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Biomedicin.
    Säll, T.
    Lund University.
    Cardell, L. O.
    Karolinska Institutet.
    Halldén, Christer
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Biomedicin.
    Genetic variation of the toll-like receptors in a Swedish allergic rhinitis case population2017Ingår i: BMC Medical Genetics, ISSN 1471-2350, E-ISSN 1471-2350, Vol. 18, nr 1, artikel-id 18Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND: Variation in the 10 toll-like receptor (TLR) genes has been significantly associated with allergic rhinitis (AR) in several candidate gene studies and three large genome-wide association studies. These have all investigated common variants, but no investigations for rare variants (MAF ≤ 1%) have been made in AR. The present study aims to describe the genetic variation of the promoter and coding sequences of the 10 TLR genes in 288 AR patients.

    METHODS: Sanger sequencing and Ion Torrent next-generation sequencing was used to identify polymorphisms in a Swedish AR population and these were subsequently compared and evaluated using 1000Genomes and Exome Aggregation Consortium (ExAC) data.

    RESULTS: The overall level of genetic variation was clearly different among the 10 TLR genes. The TLR10-TLR1-TLR6 locus was the most variable, while the TLR7-TLR8 locus was consistently showing a much lower level of variation. The AR patients had a total of 37 promoter polymorphisms with 14 rare (MAF ≤ 1%) and 14 AR-specific polymorphisms. These numbers were highly similar when comparing the AR and the European part of the 1000Genomes populations, with the exception of TLR10 where a significant (P = 0.00009) accumulation of polymorphisms were identified. The coding sequences had a total of 119 polymorphisms, 68 were rare and 43 were not present in the European part of the 1000Genomes population. Comparing the numbers of rare and AR-specific SNPs in the patients with the European part of the 1000Genomes population it was seen that the numbers were quite similar both for individual genes and for the sum of all 10 genes. However, TLR1, TLR5, TLR7 and TLR9 showed a significant excess of rare variants in the AR population when compared to the non-Finnish European part of ExAC. In particular the TLR1 S324* nonsense mutation was clearly overrepresented in the AR population.

    CONCLUSIONS: Most TLR genes showed a similar level of variation between AR patients and public databases, but a significant excess of rare variants in AR patients were detected in TLR1, TLR5, TLR7, TLR9 and TLR10. This further emphasizes the frequently reproduced TLR10-TLR1-TLR6 locus as being involved in the pathogenesis of allergic rhinitis.

  • 322.
    Henmyr, Viktor
    et al.
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Biomedicin.
    Lind-Halldén, Christina
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Biomedicin.
    Halldén, Christer
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Biomedicin.
    Säll, Torbjörn
    Lund University.
    Carlberg, Daniel
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Biomedicin.
    Bachert, Claus
    Belgien.
    Cardell, Lars-Olaf
    Karolinska institutet.
    Chronic rhinosinusitis patients show accumulation of genetic variants in PARS22016Ingår i: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 11, nr 6, artikel-id e0158202Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Genetic studies of chronic rhinosinusitis (CRS) have identified a total of 53 CRS-associated SNPs that were subsequently evaluated for their reproducibility in a recent study. The rs2873551 SNP in linkage disequilibrium with PARS2 showed the strongest association signal. The present study aims to comprehensively screen for rare variants in PARS2 and evaluate for accumulation of such variants in CRS-patients. Sanger sequencing and long-range PCR were used to screen for rare variants in the putative promoter region and coding sequence of 310 CRS-patients and a total of 21 variants were detected. The mutation spectrum was then compared with data from European populations of the 1000Genomes project (EUR) and the Exome Aggregation Consortium (ExAC). The CRS population showed a significant surplus of low-frequency variants compared with ExAC data. Haplotype analysis of the region showed a significant excess of rare haplotypes in the CRS population compared to the EUR population. Two missense mutations were also genotyped in the 310 CRS patients and 372 CRS-negative controls, but no associations with the disease were found. This is the first re-sequencing study in CRS research and also the first study to show an association of rare variants with the disease.

  • 323.
    Henmyr, Viktor
    et al.
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Biomedicin.
    Vandeplas, Griet
    University Hospital Ghent.
    Halldén, Christer
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Biomedicin.
    Säll, Torbjörn
    Lund University.
    Olze, Heidi
    Charité Berlin.
    Bachert, Claus
    Karolinska Institutet.
    Cardell, Lars Olaf
    Karolinska Institutet.
    Replication study of genetic variants associated with chronic rhinosinusitis and nasal polyposis2014Ingår i: Journal of Allergy and Clinical Immunology, ISSN 0091-6749, E-ISSN 1097-6825, Vol. 133, nr 1, s. 273-275Artikel i tidskrift (Refereegranskat)
  • 324.
    Hernroth, Bodil
    et al.
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).
    Baden, S.
    University of Gothenburg.
    Tassidis, Helena
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).
    Hörnaeus, K.
    Uppsala University.
    Guillemant, J.
    Uppsala University.
    Bergström Lind, S.
    Uppsala University.
    Bergquist, J.
    Uppsala University.
    Impact of ocean acidification on antimicrobial activity in gills of the blue mussel (Mytilus edulis)2016Ingår i: Fish and Shellfish Immunology, ISSN 1050-4648, E-ISSN 1095-9947, Vol. 55, s. 452-459Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Here, we aimed to investigate potential effects of ocean acidification on antimicrobial peptide (AMP) activity in the gills of Mytilus edulis, as gills are directly facing seawater and the changing pH (predicted to be reduced from ∼8.1 to ∼7.7 by 2100). The AMP activity of gill and haemocyte extracts was compared at pH 6.0, 7.7 and 8.1, with a radial diffusion assay against Escherichia coli. The activity of the gill extracts was not affected by pH, while it was significantly reduced with increasing pH in the haemocyte extracts. Gill extracts were also tested against different species of Vibrio (V. parahaemolyticus, V. tubiashii, V. splendidus, V. alginolyticus) at pH 7.7 and 8.1. The metabolic activity of the bacteria decreased by ∼65–90%, depending on species of bacteria, but was, as in the radial diffusion assay, not affected by pH. The results indicated that AMPs from gills are efficient in a broad pH-range. However, when mussels were pre-exposed for pH 7.7 for four month the gill extracts presented significantly lower inhibit of bacterial growth. A full in-depth proteome investigation of gill extracts, using LC-Orbitrap MS/MS technique, showed that among previously described AMPs from haemocytes of Mytilus, myticin A was found up-regulated in response to lipopolysaccharide, 3 h post injection. Sporadic occurrence of other immune related peptides/proteins also pointed to a rapid response (0.5–3 h p.i.). Altogether, our results indicate that the gills of blue mussels constitute an important first line defence adapted to act at the pH of seawater. The antimicrobial activity of the gills is however modulated when mussels are under the pressure of ocean acidification, which may give future advantages for invading pathogens.

  • 325.
    Hernroth, Bodil
    et al.
    Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. KVA.
    Baden, Susanne P
    University of Gothenburg.
    Alteration of host-pathogen interactions in the wake of climate change: increasing risk for shellfish associated infections?2018Ingår i: Environmental Research, ISSN 0013-9351, E-ISSN 1096-0953, Vol. 161, s. 425-438Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The potential for climate-related spread of infectious diseases through marine systems has been highlighted in several reports. With this review we want to draw attention to less recognized mechanisms behind vector-borne transmission pathways to humans. We have focused on how the immune systems of edible marine shellfish, the blue mussels and Norway lobsters, are affected by climate related environmental stressors. Future ocean acidification (OA) and warming due to climate change constitute a gradually increasing persistent stress with negative trade-off for many organisms. In addition, the stress of recurrent hypoxia, inducing high levels of bioavailable manganese (Mn) is likely to increase in line with climate change. We summarized that OA, hypoxia and elevated levels of Mn did have an overall negative effect on immunity, in some cases also with synergistic effects. On the other hand, moderate increase in temperature seems to have a stimulating effect on antimicrobial activity and may in a future warming scenario counteract the negative effects. However, rising sea surface temperature and climate events causing high land run-off promote the abundance of naturally occurring pathogenic Vibrio and will in addition, bring enteric pathogens which are circulating in society into coastal waters. Moreover, the observed impairments of the immune defense enhance the persistence and occurrence of pathogens in shellfish. This may increase the risk for direct transmission of pathogens to consumers. It is thus essential that in the wake of climate change, sanitary control of coastal waters and seafood must recognize and adapt to the expected alteration of host-pathogen interactions.

  • 326.
    Hernroth, Bodil
    et al.
    Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. The Royal Swedish Academy of Sciences.
    Holm, Ingvar
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).
    Gondikas, Andreas
    University of Gothenburg.
    Tassidis, Helena
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).
    Manganese inhibits viability of prostate cancer cells2018Ingår i: Anticancer Research, ISSN 0250-7005, E-ISSN 1791-7530, Vol. 38, nr 1, s. 137-145Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    BACKGROUND/AIM: Androgen deprivation therapy is usually in the initial phase a successful treatment for prostate cancer but eventually most patients develop androgen-independent metastatic disease. This study investigated if manganese (Mn) reduces viability of prostate cancer via induction of apoptosis.

    MATERIALS AND METHODS: The prostate cancer cell lines PC3, DU145 and LNCaP underwent dose- and time-dependent screening of viability, analyzed by the 3-(4,5-dimethyl-thiazol-2-yl)-2,5-diphenyl-tetrazolium bromide assay. Flow cytometry was used for the cell-cycle and apoptosis analyses. Intracellular Mn concentration was measured using inductively coupled plasma-mass spectrometry.

    RESULTS: At Mn concentrations of 200-1000 μM, the effect on viability was most pronounced in PC3 followed by LNCaP cells. These cell lines also showed higher intracellular concentration of Mn compared to DU145. In all cell lines, Mn increased the proportion of cells arrested in the G0/G1 phase and induced apoptosis.

    CONCLUSION: To our knowledge, this is the first report demonstrating Mn as a potential agent in prostate cancer therapy.

  • 327.
    Hernroth, Bodil
    et al.
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).
    Krång, Anna-Sara
    University of Gothenburg.
    Baden, Susanne
    University of Gothenburg.
    Bacteriostatic suppression in Norway lobster (Nephrops norvegicus) exposed to manganese or hypoxia under pressure of ocean acidification2015Ingår i: Aquatic Toxicology, ISSN 0166-445X, E-ISSN 1879-1514, Vol. 159, s. 217-224Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Future ocean acidification (OA) and warming following climate change elicit pervasive stressors to the inhabitants of the sea. Previous experimental exposure to OA for 16 weeks at pH levels predicted for 2100, has shown to result in serious immune suppression of the Norway lobster, Nephrops norvegicus. The lobsters are currently affected by stressors such as periodical hypoxia inducing high levels of bioavailable manganese (Mn). Here, we aimed to investigate possible effects of interactions between OA and these stressors on total hemocyte counts (THC) and on recovery of inoculated bacteria in the lobsters, measured as a proxy for bacteriostatic response. The effects were judged by following numbers of culturable Vibrio parahaemolyticus in hepatopancreas, 4 and 24 h post inoculation in lobsters kept in replicate tanks with six different treatments; either ambient (pCO2∼ 500 μatm/pH∼8.1 units) or CO2 manipulated seawater (OA; pCO2 1550 μatm/pH∼7.6 units) for 8 weeks. During the last two weeks additional stress of either hypoxia (∼23% oxygen saturation) or Mn (∼9 mgL−1) was added except in control treatments. Our results showed clear effect on bacteriostatic response in Norway lobsters exposed to these stressors. In lobster kept in ambient seawater without additional stressors the number of culturable bacteria in hepatopancreas was reduced by ∼ 34%. In combined treatment of ambient seawater and hypoxia the reduction was ∼23%, while in the Mn-exposed animals, there was no reduction at all. This was also the case in all OA-treatments where mean numbers of culturable V. parahaemolyticus tended to increase. In lobsters from ambient seawater with or without hypoxia, the total hemocyte count (THC) was not significantly different as was also the case in OA without additional stressors. However, in OA-treatments combined with either hypoxia or Mn, THC was reduced by ∼ 35%.While the reduction of culturable V. parahaemolyticus in lobsters was clearly affected by these stressors, we found no notable effects on growth, survival or hemolytic properties of the bacteria itself. Thus, we conclude that this predicted stress scenario is beneficial for the pathogen in its interaction with the host. As OA proceeds, it may force the health of the ecologically and economically important N. norvegicus to a tipping point if exposed to more short-term stressors such as the periodical events of hypoxia and Mn. This could impact lobster condition and biomass and may as well increase the risk for bacterial transmission to consumers.

  • 328.
    Hjernquist, Mårten B.
    et al.
    Uppsala University.
    Söderman, Fredrik
    Uppsala University.
    Jönsson, K. Ingemar
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).
    Herczeg, Gábor
    Finland.
    Laurila, Anssi
    Uppsala University.
    Merilä, Juha
    Finland.
    Seasonality determines patterns of growth and age structure over a geographic gradient in an ectothermic vertebrate2012Ingår i: Oecologia, ISSN 0029-8549, E-ISSN 1432-1939, Vol. 170, nr 3, s. 641-649Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Environmental variation connected with seasonality is likely to affect the evolution of life-history strategies in ectotherms, but there is no consensus as to how important life-history traits like body size are influenced by environmental variation along seasonal gradients. We compared adult body size, skeletal growth, mean age, age at first reproduction and longevity among 11 common frog ( Rana temporaria ) populations sampled along a 1,600-km-long latitudinal gradient across Scandinavia. Mean age, age at first reproduction and longevity increased linearly with decreasing growth season length. Lifetime activity (i.e. the estimated number of active days during life-time) was highest at mid-latitudes and females had on average more active days throughout their lives than males. Variation in body size was due to differences in lifetime activity among populations—individuals (especially females) were largest where they had the longest cumulative activity period—as well as to differences between populations in skeletal growth rate as determined by skeletochronological analyses. Especially, males grew faster at intermediate latitudes. While life-history trait variation was strongly associated with latitude, the direction and shape of these relationships were sex- and trait-specific. These context-dependent relationships may be the result of life-history trade-offs enforced by differences in future reproductive opportunities and time constraints among the populations. Thus, seasonality appears to be an important environmental factor shaping life-history trait variation in common frogs.

  • 329.
    Hofman, Maria
    et al.
    Finland.
    Jeronen, Eila
    Finland.
    Palmberg, Irmeli
    Finland.
    Persson, Christel
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Yli Panula, Eija
    Finland.
    Systems thinking as a base for sustainable development2015Konferensbidrag (Refereegranskat)
    Abstract [en]

    Introduction: Systems thinking as a base for sustainable development

    Sustainable development is a wide and complex item often connected to environment and environmental policy. There are studies that show the importance of species identification, interest in nature and outdoor experience for achieving the understanding of environmental issues and understanding of a sustainable lifestyle.

    The fact is that there is an environmental knowledge gap existing. Ecological literacy is important to bridge this gap. It is important to develop a comprehensive understanding of complex casual relationships, as relationships between human systems and natural systems might be. The starting point to develop this complex understanding is for students to develop a mature understanding of key ecological concepts. These key concepts support more complex concepts which are the base for understanding the more complex relationships.

    In today’s society humans need to develop a narrow specialization, but they also need to develop a capacity of holistic thinking. This capacity of holistic thinking or systemic thinking is needed because for example sustainable development that links economy, human life and natural environment into one single entity. There are also some recent ecological literacy frameworks that emphasize systems thinking for the construction of a “big picture” view. Systems thinking is a way of thinking that can get people to see their part in the big picture. All are part of a system, everything you do affects the system. If a component is changing in a system, it causes changes in the other system components. The focus in such thinking is on processes and entirety instead of parts.

    Objectives: This will be a presentation of an article in progress. Newly qualified teachers teach about nature and biodiversity with the skills they have obtained during the obligatory part of their teacher education. Knowledge and identification of species is one of the factors that are important in developing an interest in environmental issues and sustainable development. The aim of the study is to find out more about Nordic student teachers’ conceptions about the relationship between species identification, biodiversity and sustainable development and to try to find out if the student teachers develop some kind of systems thinking through their teacher studies.

    Methods: The survey was conducted as a questionnaire to 456 second- to fourth- year student teachers. For this article mainly one qualitative question in the survey was analyzed. To analyze the relationships between the concepts we have used content analysis of the images and content analysis of text and terms as a method.

    Results: The results from the study are not completed yet.

    Conclusion: Because the results from the study are not completed yet, there are no conclusions yet.

  • 330.
    Holgersson, Ingemar
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Att arbeta med noteringar för att få syn på vad som händer i undervisningen2014Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 331.
    Holgersson, Ingemar
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Att arbeta med öppna uppgifter2014Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 332.
    Holgersson, Ingemar
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Att utveckla elevernas problemlösningsförmåga2014Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 333.
    Holgersson, Ingemar
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Barns uppfattning av materia: varför blir ett ljus mindre när det brinner?2004Ingår i: Naturfagenes didaktikk - en disciplin i forandring: det 7. nordiske forskersymposiet om undervisning i naturfag i skolen / [ed] E K Henriksen & M Ödegaard, Kristiansand, Norge: Höyskoleforlaget , 2004, s. 329-344Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 334.
    Holgersson, Ingemar
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Det dolda spelet i klassrummet2014Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 335.
    Holgersson, Ingemar
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Förslag på problem att arbeta med2014Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 336.
    Holgersson, Ingemar
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Samband och förändring för årskurs 1-32014Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 337.
    Holgersson, Ingemar
    et al.
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Barendregt, Wolmet
    Göteborgs universitet.
    Emanuelsson, Jonas
    Göteborgs universitet.
    Ottosson, Torgny
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Pedagogik.
    Rietz, Elisabeth
    Lindström, Berner
    Göteborgs universitet.
    Fingu – a game to support children’s development of arithmetic competence: theory, design and empirical research2016Ingår i: International perspectives on teaching and learning mathematics with virtual manipulatives / [ed] Moyer-Packenham, Patricia S., Springer International Publishing , 2016Kapitel i bok, del av antologi (Refereegranskat)
  • 338.
    Holgersson, Ingemar
    et al.
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Barendregt, Wolmet
    University of Gothenburg.
    Rietz, Elisabeth
    University of Gothenburg.
    Ottosson, Torgny
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Pedagogik.
    Lindström, Berner
    University of Gothenburg.
    Can children enhance their arithmetic competence by playing a specially designed computer game?2016Ingår i: Cursiv [publisher: Institut for Didaktik, Danmarks Pædagogiske Universitetsskole, Aarhus Universitet, DK], ISSN 1901-8878, E-ISSN 1901-8886, Vol. 18, s. 177-188Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Fingu is a game and a game platform using virtual manipulatives designed to help children develop competence and fluency with basic number combinations. We present results from an intervention lasting for seven to nine weeks, in which 82 children (5, 6, and 7 years old) were allowed to play the game as part of their ordinary preschool or school activities. The results showed significant positive differences between pre- and post-tests in four arithmetic measures, with moderate to large effect sizes. In contrast, most differences between post-tests and delayed post-tests were non-significant, with low or no effect sizes.

  • 339.
    Holgersson, Ingemar
    et al.
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Barendregt, Wolmet
    Göteborgs universitet.
    Rietz, Elisabeth
    Göteborgs universitet.
    Ottosson, Torgny
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Pedagogik.
    Lindström, Berner
    Göteborgs universitet.
    Can children enhance their arithmetic competence by playing an especially designed computer game?2015Konferensbidrag (Refereegranskat)
    Abstract [en]

    Fingu is a game and a game platform aimed at helping children 4 to 8 years old develop competence and fluency with basic addition combinations. We present results from an eight week intervention, where children, 5-, 6-, and 7 years old, have been allowed to play the game as part of their ordinary pre-school and school activities. Results show significant positive differences between pre- and post-tests in four arithmetic measures with modest to large effect sizes. In contrast most differences between post-tests and delayed-tests, when the children did not play the game, are non-significant with none or low effect sizes. Design principles and results are discussed with special emphasis on children who “struggle to learn math”.

  • 340.
    Holgersson, Ingemar
    et al.
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Barendregt, Wolmet
    Göteborgs universitet.
    Rietz-Lepännen, Elisabeth
    Göteborgs universitet.
    Ottosson, Torgny
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Pedagogik.
    Lindström, Berner
    Göteborgs universitet.
    Can children enhance their arithmetic competence by playing an especially designed computer game?2013Konferensbidrag (Refereegranskat)
    Abstract [en]

    Fingu is a game and a game platform aimed at helping children 4 to 8 years old develop competence and fluency with basic addition combinations. We present results from an eight week intervention, where children, 5-, 6-, and 7 years old, have been allowed to play the game as part of their ordinary pre-school and school activities. Results show significant positive differences between pre- and post-tests in four arithmetic measures with modest to large effect sizes. In contrast most differences between post-tests and delayed-tests, when the children did not play the game, are non-significant with none or low effect sizes. Design principles and results are discussed with special emphasis on children who “struggle to learn math”.

  • 341.
    Holgersson, Ingemar
    et al.
    Högskolan Kristianstad, Forskningsmiljön Learning in Science and Mathematics (LISMA). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Ödmark, Krister
    Umeå universitet.
    Popov, Oleg
    Umeå universitet.
    Att göra noteringar och att auskultera2014Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 342.
    Holm, Ingvar
    et al.
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).
    Rehnstam-Holm, Ann-Sofi
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).
    Samverkansinlärning: en modell för att öka genomströmningen i svåra kurser2017Ingår i: Högskolepedagogisk debatt, ISSN 2000-9216, nr 1, s. 56-70Artikel i tidskrift (Övrigt vetenskapligt)
  • 343.
    Holmberg, Inger
    et al.
    Högskolan Kristianstad, Sektionen för lärande och miljö.
    Grevholm, Barbro
    Högskolan Kristianstad, Sektionen för lärande och miljö.
    Hansson, Örjan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Hur en innovativ lärandemiljö kan stödja utvecklingen av lärarstuderandes kommunikationsförmåga i matematik2004Ingår i: / [ed] Järnefelt, Ingrid, Lund: UCLU Lunds universitet , 2004, s. 45-48Konferensbidrag (Refereegranskat)
  • 344.
    Holmstedt, Pernilla
    et al.
    Högskolan Kristianstad, Fakulteten för lärarutbildning, Avdelningen för utbildningsvetenskap inriktning grundskola, gymnasium och specialpedagogik.
    Jönsson, Anders
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Fakulteten för lärarutbildning, Forskningsmiljön Learning in Science and Mathematics (LISMA).
    Aspelin, Jonas
    Högskolan Kristianstad, Fakulteten för lärarutbildning, Forskningsmiljön Forskning Relationell Pedagogik (FoRP). Högskolan Kristianstad, Fakulteten för lärarutbildning, Avdelningen för utbildningsvetenskap inriktning grundskola, gymnasium och specialpedagogik.
    Learning to see new things: using criteria to support pre-service teachers’ discernment in the context of teachers’ relational work2018Ingår i: Frontiers in education, Vol. 3, s. 1-14Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The purpose of this study was to investigate how preservice teachers’ understanding of relational competence can be supported through the use of digital video and explicit criteria. The study is a mixed method intervention study, where preservice teachers analyzed the teacher-student relationship as depicted in a short video sequence with the support of explicit criteria. These analyses were analyzed with content analysis according to the criteria and a thematic comparison of preservice teachers’ analyses before and after the access to explicit criteria. Findings suggest that the use of explicit criteria supported preservice teachers’ discernment of significant dimensions of teacher-student relationships, so that they were able to discern and discuss aspects of the teacher-student relationship with a specific focus on teacher-student interaction and with greater detail and nuance. The study also provides some tentative evidence that modelling the use of criteria may support preservice teachers’ use of the criteria.

  • 345.
    Holopainen, Sari
    et al.
    Finland.
    Arzel, Céline
    Finland.
    Dessborn, Lisa
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Elmberg, Johan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Gunnarsson, Gunnar
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Nummi, Petri
    Finland.
    Pöysä, Hannu
    Finland.
    Sjöberg, Kjell
    SLU.
    Habitat use in ducks breeding in boreal freshwater wetlands: a review2015Ingår i: European Journal of Wildlife Research, ISSN 1612-4642, E-ISSN 1439-0574, Vol. 61, nr 3, s. 339-363Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Breeding habitats strongly influence duck reproduction and survival. The boreal biome harbours a large share of the worlds wetlands, which are important breeding sites for several duck species. Based on 98 studies in the peer-reviewed literature, we here synthesize and evaluate which habitat characteristics affect habitat use and reproduction of ducks breeding in boreal freshwater wetlands with respect to (1) species and guild (dabbling, diving and piscivorous ducks) and (2) breeding cycle stage (settling by pairs, nesting and brood rearing). We consider the following aspects related to habitat: wetland morphology and spatial aggregation, water characteristics, habitat structure and vegetation, and biotic interactions. Most of the peer-reviewed studies of duck habitat use in boreal wetlands are from North America and Fennoscandia, while nearly half of the boreal area lacks such studies. Few species dominate research thus far while several others have not been studied at all. Nest site use and success are mainly related to predator avoidance. Food resources and habitat structure are the key characteristics affecting habitat use by duck pairs and broods as well as breeding success, although there are differences between duck guilds. Among the commonly studied variables, there is little evidence that water characteristics affect duck habitat use or survival. The most notable knowledge gaps are found in the effects of anthropogenic activities on habitat use and breeding success of ducks. Because boreal breeding environments are increasingly affected by human activities, we underline the need for future studies combining climate variation with natural and anthropogenic disturbances.

  • 346. Holopainen, Sari
    et al.
    Arzel, Céline
    Elmberg, Johan
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Fakulteten för naturvetenskap, Forskningsmiljön Man & Biosphere Health (MABH). Högskolan Kristianstad, Fakulteten för naturvetenskap, Avdelningen för miljö- och biovetenskap.
    Fox, Anthony D
    Guillemain, Matthieu
    Gunnarsson, Gunnar
    Högskolan Kristianstad, Fakulteten för naturvetenskap, Forskningsmiljön Man & Biosphere Health (MABH).
    Nummi, Petri
    Sjöberg, Kjell
    Väänänen, Veli-Matti
    Alhainen, M
    Pöysä, Hannu
    Sustainable management of migratory European ducks: finding model species2018Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    Eurasian migratory ducks are a natural resource shared between multiple European countries. Due to lack of flyway-level management and monitoring, there is a risk of “the tragedy of the commons” arising, where populations are overexploited. Effective management may also be hindered by a poor understanding of the factors that limit and regulate migratory populations throughout their flyways, and over time. Following decades of population increase, some European duck populations now show signs of levelling off or even decline, underlining the need for more active management. In Europe, we lack effective common tools to manage duck populations, despite the need and enthusiasm for establishing flyway-level adaptive management (AM) schemes for migratory birds. There are several international legal agreements (e.g. EEC Birds Directive, AEWA) that oblige European countries to sustainably manage migratory birds and their habitats. Although the lack of coordinated demographic and hunting data remains a challenge to sustainable management planning for waterfowl, AM provides a robust decision-making framework even in the presence of uncertainty.

    We investigate the research and monitoring needs in Europe to successfully apply AM to ducks, and search for possible model species, focusing on freshwater duck species.  Our geographical focus is NW Europe (excluding Russia), the area utilized by ducks in the East-Atlantic flyway. Based on current knowledge and their wide distribution, we suggest that Common Teal Anas crecca, Eurasian Wigeon Mareca penelopeand Common Goldeneye Bucephala clangulawould be the best species for testing the application of an AM modelling approach for ducks in Europe. Applying AM to huntable species with relatively good population data as models for broader implementation represents a cost effective way of starting to develop AM on a European flyway scale for ducks and other harvested waterbirds.

  • 347.
    Hultberg, M.
    et al.
    Swedish University of Agricultural Sciences.
    Bodin, Hristina
    Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Fungi-based treatment of brewery wastewater-biomass production and nutrient reduction2017Ingår i: Applied Microbiology and Biotechnology, ISSN 0175-7598, E-ISSN 1432-0614, Vol. 101, nr 11, s. 4791-4798Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The beer-brewing process produces high amounts of nutrient-rich wastewater, and the increasing number of microbreweries worldwide has created a need for innovative solutions to deal with this waste. In the present study, fungal biomass production and the removal of organic carbon, phosphorus and nitrogen from synthetic brewery wastewater were studied. Different filamentous fungi with a record of safe use were screened for growth, and Trametes versicolor, Pleurotus ostreatus and Trichoderma harzianum were selected for further work. The highest biomass production, 1.78 ± 0.31 g L(-1) of dry weight, was observed when P. ostreatus was used for the treatment, while T. harzianum demonstrated the best capability for removing nutrients. The maximum reduction of chemical oxygen demand, 89% of the initial value, was observed with this species. In the removal of total nitrogen and phosphorus, no significant difference was observed between the species, while removal of ammonium varied between the strains. The maximum reduction of ammonium, 66.1% of the initial value, was also found in the T. harzianum treatment. It can be concluded that all treatments provided significant reductions in all water-quality parameters after 3 days of growth and that the utilisation of filamentous fungi to treat brewery wastewater, linked to a deliberate strategy to use the biomass produced, has future potential in a bio-based society.

  • 348.
    Hultberg, Malin
    et al.
    Swedish University of Agricultural Sciences.
    Bodin, Hristina
    Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap.
    Ardal, Embla
    Swedish University of Agricultural Sciences.
    Asp, Håkan
    Swedish University of Agricultural Sciences.
    Effect of microalgal treatments on pesticides in water2016Ingår i: Environmental Technology, Vol. 37, nr 7, s. 893-898Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The effect of the microalgae Chlorella vulgaris on a wide range of different pesticides in water was studied. Treatments included short-term exposure (1 h) to living and dead microalgal biomass and long-term exposure (4 days) to actively growing microalgae. The initial pesticide concentration was 63.5 ± 3.9 µg L−1. There was no significant overall reduction of pesticides after short-term exposure. A significant reduction of the total amount of pesticides was achieved after the long-term exposure to growing microalgae (final concentration 29.7 ± 1.0 µg L−1) compared with the long-term control (37.0 ± 1.2 µg L−1). The concentrations of 10 pesticides out of 38 tested were significantly lowered in the long-term algal treatment. A high impact of abiotic factors such as sunlight and aeration for pesticide reduction was observed when the initial control (63.5 ± 3.9 µg L−1) and the long-term control (37.0 ± 1.2 µg L−1) were compared. The results suggest that water treatment using microalgae, natural inhabitants of polluted surface waters, could be further explored not only for removal of inorganic nutrients but also for removal of organic pollutants in water.

  • 349.
    Hultberg, Malin
    et al.
    Swedish University of Agricultural Sciences.
    Prade, Thomas
    Swedish University of Agricultural Sciences.
    Bodin, Hristina
    Högskolan Kristianstad, Fakulteten för naturvetenskap, Forskningsmiljön Man & Biosphere Health (MABH). Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Swedish University of Agricultural Sciences.
    Vidakovic, Aleksandar
    Swedish University of Agricultural Sciences.
    Asp, Håkan
    Swedish University of Agricultural Sciences.
    Adding benefit to wetlands: valorization of harvested common reed through mushroom production2018Ingår i: Science of the Total Environment, ISSN 0048-9697, E-ISSN 1879-1026, Vol. 637-638, s. 1395-1399Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Wetlands have been successfully implemented as water purification systems for removal of plant nutrients and can play a significant role in nutrient recycling, depending on use of the harvested biomass. In a constructed wetland in southern Sweden examined in this study, assimilation of plant nutrients in wetland biomass corresponded to 234 kg/ha nitrogen, 22.8 kg/ha phosphorus, and 158 kg/ha potassium in the study year (2016). The harvested biomass, composed exclusively of common reed, was evaluated as a substrate for production of oyster mushrooms, one of the most widely produced edible mushrooms in the world. The biological efficiency of the substrate was 138 ± 10%, corresponding to production of 1.4 kg mushrooms (fresh weight) based on 1 kg reed (dry weight). The fruiting bodies had high quality, with total protein concentration 18.3 ± 2.8% and very low levels of contaminating heavy metals. Thus, nutrient assimilation in wetland biomass not only decreases the risk of eutrophication in recipient waters, but can be utilized for direct production of high-quality food. The biomass remaining after mushroom production, composed of mycelium and partly degraded wetland biomass, has potential for use in ruminant feed, i.e., as roughage.

  • 350.
    Hörnaeus, K.
    et al.
    Uppsala University.
    Guillemant, J.
    Uppsala University.
    Mi, J.
    Uppsala University.
    Hernroth, Bodil
    Högskolan Kristianstad, Sektionen för lärande och miljö, Avdelningen för Naturvetenskap. Högskolan Kristianstad, Forskningsmiljön Man & Biosphere Health (MABH).
    Bergquist, J.
    Uppsala University.
    Bergström Lind, Sara
    Uppsala University.
    Mass spectrometry data from a quantitative analysis of protein expression in gills of immuno-challenged blue mussels (Mytilus edulis)2016Ingår i: Data in Brief, E-ISSN 2352-3409, Vol. 8, s. 470-473Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Here, we provide the dataset associated with our research article on the potential effects of ocean acidification on antimicrobial peptide (AMP) activity in the gills of Mytilus edulis, "Impact of ocean acidification on antimicrobial activity in gills of the blue mussel (Mytilus edulis)" [1]. Blue mussels were stimulated with lipopolysaccharides and samples were collected at different time points post injection. Protein extracts were prepared from the gills, digested using trypsin and a full in-depth proteome investigation was performed using liquid chromatography coupled to tandem mass spectrometry (LC-MS/MS). Protein identification and quantification was performed using the MaxQuant 1.5.1.2 software, "MaxQuant enables high peptide identification rates, individualized p.p.b.-range mass accuracies and proteome-wide protein quantification" [2].

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