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Sökning: WFRF:(Skoglund Jörgen)

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1.
  • Antell, Susanne, et al. (författare)
  • Eco-anxiety in the global classroom : Educational strategies about biodiversity in a sustainable perspective
  • 2021
  • Konferensbidrag (refereegranskat)abstract
    • Dalarna UniversitySusanne Antell - Jörgen Dimenäs - Annie-Maj Johansson - Johanne Maad - Lena SkoglundEco-anxiety in the global classroom - educational strategies about biodiversity in a sustainable perspectiveFrom all over the world it has been reported that children are increasingly suffering anxiety and grief about climate change, what has been termed “eco-anxiety”. The anxiety is partly built up by concerns for species survival. One million animal species are threatened by extinction, and fundamental system changes are needed to save the quality of life worldwide, according to the IPBES (2019) report.Swedish preschools and elementary schools have long traditions of education for sustainable development, primarily by visiting nature and recycling materials. However, young people´s concerns about climate change force schools to reorient education towards a more global world where sustainable and ethical values include all forms of life.The aim of this study is to investigate what can affect the way students, teachers and whole schools do or do not engage with the challenging issues in a global learning agenda with a special focus on biodiversity loss.Theoretical frameworkThe study takes its theoretical point of departure regarding learning and teaching from Deweys (1934/1980) aesthetic theory that makes it possible to study pupil´s engagement and their meaning making as a holistic process. Important for the study is also Roberts (2007) argument that studies in science education not purely should be related to pupils’ natural scientific general knowledges and their opportunity to work with inquiry but also to values related to their attitudes and engagement.Action researchThe study will be conducted in three steps related to action research. Firstly, a questionnaire will be sent to preschool teachers and teachers to investigate to what extent and in what areas are they teaching about biodiversity. Secondly, preschool teachers and teachers, will participate in focus groups to discuss how we can reach beyond their present teaching. Thirdly, will we together with preschool teachers and teachers finally develop holistic educational models where discussions about sustainable and ethical values are given a significant role in science education.Expected findingsAn expected result is to achieve models for education, together with teachers, where sustainable and ethical discussions embracing different life forms in both local and global contexts will contribute to meaning making and a holistic approach in the classroom.Relevance to Nordic educational researchThe study is relevant for the Nordic educational research since it will identify how Nordic schools may use eco-anxiety as a catalyst for developing interest, knowledge and engagementabout complex issues related to climate change, such as sustainable and ethical dimensions of anthropogenic biodiversity loss.In this symposium participants are invited to share reflections on how schools may transform eco-anxiety to action competence.Dewey, J. (1934/1980). Art as experience. New York: Touchstone.IPBES (2019). Summary for policymakers of the global assessment report on biodiversity and ecosystem services of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services.IPBES secretariat, Bonn, Germany.Roberts, D. A. (2007). Scientific Literacy/science literacy. In S. K. Abell & N. G. Lederman (Eds)Handbook of research on science education. 729-780. Mahwah, New Jersy, USA: Lawrence Erlbaum Associates.
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2.
  • Larsson, Helena, et al. (författare)
  • Content Validity Index and Intra- and Inter-Rater Reliability of a New Muscle Strength/Endurance Test Battery for Swedish Soldiers
  • 2015
  • Ingår i: PLOS ONE. - : Public library science. - 1932-6203. ; 10:7
  • Tidskriftsartikel (refereegranskat)abstract
    • The objective of this study was to examine the content validity of commonly used muscle performance tests in military personnel and to investigate the reliability of a proposed test battery. For the content validity investigation, thirty selected tests were those described in the literature and/or commonly used in the Nordic and North Atlantic Treaty Organization (NATO) countries. Nine selected experts rated, on a four-point Likert scale, the relevance of these tests in relation to five different work tasks: lifting, carrying equipment on the body or in the hands, climbing, and digging. Thereafter, a content validity index (CVI) was calculated for each work task. The result showed excellent CVI (>= 0.78) for sixteen tests, which comprised of one or more of the military work tasks. Three of the tests; the functional lower-limb loading test (the Ranger test), dead-lift with kettlebells, and back extension, showed excellent content validity for four of the work tasks. For the development of a new muscle strength/endurance test battery, these three tests were further supplemented with two other tests, namely, the chins and side-bridge test. The inter-rater reliability was high (intraclass correlation coefficient, ICC2,1 0.99) for all five tests. The intra-rater reliability was good to high (ICC3,1 0.82-0.96) with an acceptable standard error of mean (SEM), except for the side-bridge test (SEM%>15). Thus, the final suggested test battery for a valid and reliable evaluation of soldiers' muscle performance comprised the following four tests; the Ranger test, dead-lift with kettlebells, chins, and back extension test. The criterion-related validity of the test battery should be further evaluated for soldiers exposed to varying physical workload.
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4.
  • Åstrand, Jörgen, et al. (författare)
  • A rat model for testing pharmacologic treatments of pressure-related bone loss
  • 2003
  • Ingår i: Clinical Orthopaedics and Related Research. - : Ovid Technologies (Wolters Kluwer Health). - 0009-921X. ; :409, s. 296-305
  • Tidskriftsartikel (refereegranskat)abstract
    • Fluid pressure, instability, or particles have been suggested to initiate the process leading to loosening of prosthetic implants. In a rat model where bone resorption is caused by oscillating fluid pressure, the resorptive response seems much stronger than the response that can be induced by particles or instability. Bone resorption is caused by osteoclasts. It has been suggested that the formation of osteoclasts is influenced by tumor necrosis factor-alpha, which can be blocked by etanercept. Osteoclasts can be inactivated with bisphosphonates, which bind to bone and inactivate osteoclasts when the bisphosphonate-containing bone is resorbed. Bone formation can be increased dramatically by intermittent parathyroid hormone treatment, especially at sites with high bone turnover. This might compensate for increased osteoclastic activity. Forty-two rats received a plate implant, by which fluid pressure was applied to a bone surface by compressing a soft tissue membrane. Eight rats were treated with etanercept 0.75 mg/kg/day, six rats were treated with alendronate 205 mug/kg/day, six rats received saline, and six rats were nonpressurized controls. Nine rats received intermittent parathyroid hormone treatment with nine separate controls. The area of bone resorption under the implant was evaluated by histomorphometry. Alendronate-treated rats showed less bone resorption, but etanercept, intermittent parathyroid hormone treatment, or saline did not reduce the fluid pressure-induced bone resorption. This model is a comparatively simple way of testing pharmacologic reduction of local bone resorption in vivo.
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