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  • 201.
    Reddy, Vijeth Venkataram
    et al.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Flys, Olena
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). Research Institute of Sweden, Borås, Sweden.
    Chaparala, Anish
    Halmstad University, School of Business, Engineering and Science.
    Berrimi, Chihab E.
    Halmstad University, School of Business, Engineering and Science.
    Vedantha Krishna, Amogh
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Rosén, Bengt Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Study on surface texture of Fused Deposition Modeling2018In: Proceedings of the 8th Swedish Production Symposium (SPS 2018) / [ed] Mauro Onori, Lihui Wang, Xi Vincent Wang, Wei Ji, Amsterdam: Elsevier, 2018, Vol. 25, p. 8p. 389-396Conference paper (Refereed)
    Abstract [en]

    Fused Deposition Modeling (FDM) is mostly used to develop functional prototypes and in some applications for end-use parts. It is important to study the surfaces produced by FDM to understand the certainty of process. Truncheon design test artefacts are printed at different print settings and surfaces are measured using stylus profilometer. Taguchi’s design of experiments, signal-to-noise ratio and multiple regression statistics are implemented to establish a concise study of the individual and combined effect of process variables on surface texture parameters. Further, a model is developed to predict the roughness parameters and is compared with experimental values. The results suggest significant roughness parameter values decrease with increase in build inclination and increases with increase in layer thickness except the roughness peak count. © 2018 The Authors. Published by Elsevier B.V

  • 202.
    Reddy, Vijeth Venkataram
    et al.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Tam, Pui Lam
    Chalmers University, Gothenburg, Sweden.
    Vedantha Krishna, Amogh
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Rosén, Bengt Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Subsurface Characterization of Turned Brass alloys using Backscattered Electron Microscopy2017In: Mets&Props 2017: 16th International Conference on Metrology and Properties of Engineering Surfaces: Conference abstracts, 2017, p. 14-15Conference paper (Refereed)
  • 203.
    Reddy, Vijeth Venkataram
    et al.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Vedantha Krishna, Amogh
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Schultheiss, Fredrik
    Lund University, Lund, Sweden.
    Rosén, Bengt Göran
    Halmstad University, School of Business, Engineering and Science, Mechanical Engineering and Industrial Design (MTEK), Functional Surfaces. Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Lead free Brass: Topography Characterization2016Conference paper (Refereed)
    Abstract [en]

    The negative effects of lead on human health and the recycling problems of copper alloys with lead content has led to the increase in concern for reducing/eliminating the use of lead in brass and other copper alloys. Many materials are considered to replace lead in brass; silicon is one such alternative. The real challenge prevails in sustainable manufacturing of lead free brass, to maintain control of the surface integrity when substituting the lead content in the brass with silicon. The investigation includes defined areal surface parameters measured on the turned samples of lead- and lead free brass using an optical coherence scanning interferometer, CSI.This paper deals with the study of surface topography of turned samples of lead and lead free brass. It is important to study the topographical characteristics of the brass samples which are the intermediate link between the manufacturing process variables and the functional behaviour of the surface. To numerically evaluate the sample’s surface topography and to validate the measurements for a significant study, a general statistical methodology is implemented. The results suggest that the surface roughness is higher in lead brass compared to lead free brass and tool coatings have significant influence on the hybrid (Sdr & Sdq) parameters in the surface topography of brass samples.

  • 204.
    Reddy, Vijeth Venkataram
    et al.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Vedantha Krishna, Amogh
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Schultheiss, Fredrik
    Division of Production and Materials Engineering, Lund University, Lund, Sweden.
    Rosén, Bengt Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Surface topography characterization of brass alloys: lead brass (CuZn39Pb3) and lead free brass (CuZn21Si3P)2017In: Surface Topography: Metrology and Properties, ISSN 2051-672X, Vol. 5, no 2, article id 025001Article in journal (Refereed)
    Abstract [en]

    Manufactured surfaces usually consist of topographical features which include both those put forth by the manufacturing process, and micro-features caused by disturbances during this process. Surface characterization basically involves study of these features which influence the functionality of the surface. This article focuses on characterization of the surface topography of machined lead brass and lead free brass. The adverse effect of lead on human health and the environment has led the manufacturing sector to focus on sustainable manufacturing of lead free brass, as well as how to maintain control of the surface integrity when substituting the lead content in the brass with silicon. The investigation includes defined areal surface parameters measured on the turned samples of lead- and lead free brass using an optical coherence scanning interferometer, CSI. This paper deals with the study of surface topography of turned samples of lead-and lead free brass. It is important to study the topographical characteristics of the brass samples which are the intermediate link between the manufacturing process variables and the functional behaviour of the surface. To numerically evaluate the sample's surface topography and to validate the measurements for a significant study, a general statistical methodology is implemented. The results indicate higher surface roughness in turned samples of lead brass compared to lead free brass. © 2017 IOP Publishing Ltd

  • 205.
    Renner, Samuel
    et al.
    Laboratório de Ecologia e Evolução, Universidade do Vale do Taquari – Univates, Lajeado, Brazil.
    Périco, Eduardo
    Laboratório de Ecologia e Evolução, Universidade do Vale do Taquari – Univates, Lajeado, Brazil.
    Dalzochio, Marina S.
    Laboratório de Ecologia e Evolução, Universidade do Vale do Taquari – Univates, Lajeado, Brazil.
    Sahlén, Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Ecoregions within the Brazilian Pampa biome reflected in Odonata species assemblies2019In: Austral ecology (Print), ISSN 1442-9985, E-ISSN 1442-9993, Vol. 44, no 3, p. 461-472Article in journal (Refereed)
    Abstract [en]

    Based on vegetation composition, previous studies of the Pampa biome in southern Brazil have defined seven ecoregions within the area. Here, we test this ecoregion approach studying the semi-aquatic insect group Odonata in five of these regions, aiming at comparing the ecoregions to the more traditional environmental predictors of water quality and land cover. Based on a data set of occupancy comprising 99 species distributed between 131 localities, a one-way Permutational Multivariate Analysis of Variance was used to compare differences in the species composition between the ecoregions, followed by a Principal Component Analysis to visualize the variation. The composition varied significantly between all groups tested, and the ordination explained 61.8% of the variance. A partial redundancy analysis of ecoregions, land cover and water quality variables explained 71% of the variance in Odonata community structure. Ecoregion was the most important predictor, followed by water quality and land cover. Within these species assemblies, we could select certain species that were representative of a given ecoregion, to which their distribution within the Pampa biome was entirely or mainly confined. Of 24 representative species 41.7% were rare, while the rest were more abundant and, hence, easier to detect. We suspect that the differences found between the Pampa ecoregions might be due to geology, as such factors may be strong determinants of biodiversity. Specific ecological requirements at the family and genus levels also seemed to act selectively on the species compositions within the ecoregions. Today, the Pampa is highly fragmented due to agricultural activities such as rice cultivation, extensive cattle farming and forest plantations. We suggest that an ecoregion-based approach to the implementation of conservation measures may be the best way to help these distinct species assemblies survive. © 2018 Ecological Society of Australia

  • 206.
    Renner, Samuel
    et al.
    Universidade do Vale do Taquari, Bairro Universitário, Lajeado, RS, Brazil.
    Périco, Eduardo
    Universidade do Vale do Taquari, Bairro Universitário, Lajeado, RS, Brazil.
    Ely, Gerson
    Universidade do Vale do Taquari, Bairro Universitário, Lajeado, RS, Brazil.
    Sahlén, Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Preliminary dragonfly (Odonata) species list from the Pampa biome in Rio Grande do Sul, Brazil, with ecological notes for 19 new records for the state2017In: Biota Neotropica, ISSN 1806-129X, E-ISSN 1676-0611, Vol. 17, no 4, article id e20170374Article in journal (Refereed)
    Abstract [en]

    An inventory of Odonata was carried out in the southern half of the state of Rio Grande do Sul, Brazil, in the Pampa biome. Originally, this biogeographical region was covered mostly by open fields and grassland, with sections of higher vegetation surrounding water bodies and rocky hills. Today the landscape is fragmented due to agricultural activities, mainly cattle farming, rice crops and forest plantations. Our survey was conducted in three municipalities from this region, between March 2015 and April 2016. Aiming at a general overview of the species composition, our sampling sites were selected on a wide basis, including lakes, bogs, temporary water bodies, small streams and river sections. Eighty two species of Odonata were collected comprising 40 genera and seven families. The dominant families were Libellulidae (56,1%), Coenagrionidae (24,5%) and Aeshnidae (7,3%). We found a diverse odonate assemblage, adding 19 new species records for the state of Rio Grande do Sul.

  • 207.
    Renner, Samuel
    et al.
    Lab de Evolução e Ecologia, Centro Universitário Univates, Lajeado, RS, Brazil.
    Périco, Eduardo
    Lab de Evolução e Ecologia, Centro Universitário Univates, Lajeado, RS, Brazil.
    Sahlén, Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Effects of exotic tree plantations on the richness of dragonflies (Odonata) in Atlantic Forest, Rio Grande do Sul, Brazil2016In: International Journal of Odonatology, ISSN 1388-7890, Vol. 19, no 4, p. 207-219Article in journal (Refereed)
    Abstract [en]

    One of the forest types occurring in Southern Brazil is the mixed ombrophilous forest (MOF), a subtype of the Atlantic Forest, which is one of the richest biomes on Earth. This biome currently remains as a highly fragmented mosaic, under pressure from human development. The diversity and ecology of most animal groups in this biome are poorly known. We studied Odonata in a large forest fragment, including an ecological reserve: the Floresta Nacional de São Francisco de Paula (FLONA-SFP), in Rio Grande do Sul, administrated by the Brazilian government. The reserve is dominated by MOF with sectors of Pinus elliottii and Araucaria angustifolia. Three surveys of these forest sectors over one year yielded 42 species, with the highest species richness recorded in the P. elliottii sector. The odonate species recorded here are all generalist in terms of habitat preferences, but they appeared only in low numbers and were very particular in their occurrence pattern. We therefore assume that the introduction of an alien element in the Atlantic Forest has given rise to a new species assemblage, where the ecology of the species is adapted to the novel habitat of Pinus plantations. As expected, the species occurring in the MOF sectors were mainly habitat specialists. The Araucaria plantations had an intermediate species composition. Despite the differences observed in habitat preference between generalist and specialist species, such exotic plantation habitats may act as a temporary biodiversity reservoir for further habitat colonization. © 2016 Worldwide Dragonfly Association

  • 208.
    Renner, Samuel
    et al.
    Centro Universitário Univates, Lajeado, RS, Brazil.
    Périco, Eduardo
    Centro Universitário Univates, Lajeado, RS, Brazil.
    Sahlén, Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    List of Odonates from the Floresta Nacional de São Francisco de Paula (FLONA - SFP), with two new distribution records for Rio Grande do Sul, Brazil2016In: Biota Neotropica, ISSN 1806-129X, E-ISSN 1676-0611, Vol. 3, article id e20150132Article in journal (Refereed)
    Abstract [en]

    A survey of Odonata was carried out in the National Forest FLONA - SFP, Northeastern region of the Rio Grande do Sul state, Brazil. This conservation unit is mainly covered by Mixed Ombrophilous Forest (MOF), a subtype of Atlantic Forest biome, being also areas covered in planted Pinus, planted Araucaria and open fields. Our sampling efforts were conducted in thirty aquatic environments inside this reserve during the period between January 2014 and November 2014. The sampling sites were selected randomly, comprehending lakes, bogs, small streams and river sections, all inserted in the four vegetation types occurring in the reserve. Fortysix species of Odonata were collected and grouped into 23 genera and seven families. The dominant families were Coenagrionidae (32%), Libellulidae (32%), Aeshnidae (12%), and, Calopterygidae and Lestidae (9%). As expected, the findings revealed the presence of a highly diverse Odonate assemblage, mainly represented by generalist species in the most human disturbed sectors (Pinus and Open fields) and some specialist species in the pristine forest. Two species were registered for the first time in the state of Rio Grande do Sul, Brazil: Libellula herculea Karsch, 1889 (Libellulidae) and Heteragrion luizfelipei Machado, 2006 (Heteragrionidae). © 2016, Universidade Estadual de Campinas UNICAMP. All rights reserved.

  • 209.
    Renner, Samuel
    et al.
    Ecologia e Sensoriamento Remoto, Centro Universitário Univates, Lajeado-RS, Brasil.
    Périco, Eduardo
    Ecologia e Sensoriamento Remoto, Centro Universitário Univates, Lajeado-RS, Brasil.
    Sahlén, Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Man-made lakes form species-rich dragonfly communities in the Brazilian Atlantic Forest (Odonata)2016In: Odonatologica, ISSN 0375-0183, Vol. 45, no 3-4, p. 135-154Article in journal (Refereed)
    Abstract [en]

    One of the forest types occurring in Southern Brazil is the Mixed Ombrophilous Forest (MOF), a subtype of the Atlantic Forest and one of the biodiversity hotspots on Earth. We sampled adult Odonata at 30 locations in the Floresta Nacional de São Francisco de Paula (FLONA-SFP), Rio Grande do Sul, Brazil, a national reserve which is divided into several sectors of MOF, planted Araucaria angustifolia, Pinus elliottii used for sustainable and financial purposes, and open fields. There are three types of aquatic environments in the reserve: lakes, swamps, and rivers/streams. Our aim was to obtain an overview of the species’ distribution patterns in the three types of aquatic environments and to evaluate the species occurring in lakes, an exclusively man-made habitat in this area. We recorded 46 species from seven odonate families; 25 species (x = 5.71 ± 1.77 SD) occurring in rivers/ streams, 24 in lakes (11.57 ± 2.15) and 21 in swamps (5.22 ± 3.60). Using Non-metric Multidimensional Scaling (NmDS), we showed that the species composition differed clearly between the three types of aquatic habitats. While swamps and rivers/streams had a relatively similar and uniform species composition, species in the lakes were more varied but the total species number was almost as high as that of the rivers/streams. The lake communities also differed distinctly from those of the other habitats, and we assume that the lake species originate from other degraded areas in the vicinity, indicating that the remains of the Atlantic Forest has already been strongly altered by humans. Given the poor knowledge of the Odonata in the Atlantic Forest/MOF, we hope that our study may increase the understanding of the communities, and contribute to the development of conservation measures for this fragmented biome.

  • 210.
    Renner, Samuel
    et al.
    Universidade do Vale do Taquari, Lajeado, Brazil.
    Périco, Eduardo
    Universidade do Vale do Taquari, Lajeado, Brazil.
    Schmidt Dalzochio, Marina
    Universidade do Vale do Taquari, Lajeado, Brazil.
    Sahlén, Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Water body type and land cover shape the dragonfly communities (Odonata) in the Pampa biome, Rio Grande do Sul, Brazil2018In: Journal of Insect Conservation, ISSN 1366-638X, E-ISSN 1572-9753, Vol. 22, no 1, p. 113-125Article in journal (Refereed)
    Abstract [en]

    The biogeographical region known as the Pampa biome in southern Brazil, was originally mainly covered with open fields or grassland, with areas of riparian forest surrounding the water bodies. Today this landscape appears highly fragmented due to agricultural activities such as rice cultivation, extensive cattle farming, and forest plantations. Studies have shown that the Pampa biome has high levels of biodiversity and endemism, but with regard to invertebrates, this biome is still one of the least known in Brazil. We therefore designed a study comparing the dragonfly (Odonata) communities to environmental and landscape features in this area, measuring diversity by species richness, relative abundance and Shannon index. Our results showed that the Pampa is a biome very rich in odonates, and that the species communities are highly dependent on the environmental conditions of the area. Habitats such as Rivers/Streams, bordered by native grasslands and riparian forests, were shown to harbour communities that were ecologically more complex and sensitive than other habitat types. Man-made lakes and agricultural areas displayed lower levels of biodiversity and odonate communities dominated by generalist species. By combining data on the communities of Odonata and other taxa, our analyses may be instrumental in determining priority areas for future conservation measures within the area. © 2018, Springer International Publishing AG, part of Springer Nature.

  • 211.
    Rosén, Bengt Göran
    et al.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Barth, Henrik
    Halmstad University, School of Business, Engineering and Science, Centre for Innovation, Entrepreneurship and Learning Research (CIEL).
    FabLab Halmstad – a hub and pilot plant for academia2017Conference paper (Refereed)
  • 212.
    Rosén, Bengt-Göran
    et al.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Eriksson, Lars
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). Jönköping University, Jönköping, Sweden.
    Bergman, Martin
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Kansei, surfaces and perception engineering2016In: Surface Topography: Metrology and Properties, ISSN 2051-672X, Vol. 4, no 3, article id 033001Article in journal (Refereed)
    Abstract [en]

    The aesthetic and pleasing properties of a product are important and add significantly to the meaning and relevance of a product. Customer sensation and perception are largely about psychological factors. There has been a strong industrial and academic need and interest for methods and tools to quantify and link product properties to the human response but a lack of studies of the impact of surfaces. In this study, affective surface engineering is used to illustrate and model the link between customer expectations and perception to controllable product surface properties. The results highlight the use of the soft metrology concept for linking physical and human factors contributing to the perception of products. Examples of surface applications of the Kansei methodology are presented from sauna bath, health care, architectural and hygiene tissue application areas to illustrate, discuss and confirm the strength of the methodology. In the conclusions of the study, future research in soft metrology is proposed to allow understanding and modelling of product perception and sensations in combination with a development of the Kansei surface engineering methodology and software tools.

  • 213.
    Ryman Augustsson, Sofia
    et al.
    Department of Health Sciences, Lund University, Lund, Sweden & Department of Sport Science, Faculty of Social Sciences, Linnaeus University, Kalmar, Sweden.
    Arvidsson, Julia
    Halmstad University, School of Business, Engineering and Science.
    Haglund, Emma
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Jump height as performance indicator for the selection of youth football players to national teams2019In: Journal of Sports Medicine and Physical Fitness, ISSN 0022-4707, E-ISSN 1827-1928, Vol. 59, no 10, p. 1669-1675Article in journal (Refereed)
    Abstract [en]

    Background: Different jump tests such as the Countermovement Jump (CMJ), Abalakov Jump (AJ) and Standing Long Jump (SLJ) are often used in practice to evaluate muscular power and functional performance in football. These tests are also used in different selection processes and talent identification, but the significance of the tests for the selection of youth players to national teams are relatively unknown. The aim of this study was to compare jump ability between youth football players selected or not selected for the national team.

    Methods: In this cross-sectional study, 22 players (aged 17±2 years), 11 national players (NP) and 11 non-national players (NNP) were evaluated in three different jump tests; CMJ, AJ and SLJ. Mean scores for the tests were analyzed and compared.

    Results: Significant differences were found between the groups regarding jump height in favor of the NP group in both the CMJ (NP 39.9±5.0 cm vs. NNP 34.2±4.9 cm, P=0.013) and the AJ (NP 47.1±5.4 vs. NNP 40.9±4.7, P=0.010). No group difference was found regarding jump length in SLJ (NP 246.2±17.9 vs. NNP 232.9±16.5, P=0.084).

    Conclusions: The results suggest that tests, measuring jump height, could be used as a performance indicator and part of the selection process of youth football players to national teams, whereas the use of jump length could be questioned. Copyright © 2019 Edizioni Minerva Medica

  • 214.
    Sardar, Samra
    et al.
    University of Copenhagen, Copenhagen, Denmark.
    Alish, Kerr
    University of Copenhagen, Copenhagen, Denmark & Pfizer Pharmaceuticals, Dublin, Ireland.
    Vaartjes, Daniëlle
    University of Copenhagen, Copenhagen, Denmark & Karolinska Institute, Stockholm, Sweden.
    Voetmann, Mathilde Emilie
    University of Copenhagen, Copenhagen, Denmark & Biogen Denmark A/S, Hillerød, Denmark.
    Moltved, Emilie Riis
    University of Copenhagen, Copenhagen, Denmark & QuintilesIMS, North Carolina, USA.
    Andersson, Åsa
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). University of Copenhagen, Copenhagen, Denmark.
    A novel candidate for genetic control of Collagen Induced Arthritis is involved in transcriptional regulation of B-cell proliferation2017Conference paper (Other academic)
  • 215.
    Sardar, Samra
    et al.
    Dept. of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark.
    Andersson, Åsa
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). Dept. of Drug Design and Pharmacology, University of Copenhagen, Copenhagen, Denmark.
    Old and new therapeutics for Rheumatoid Arthritis: in vivo models and drug development2016In: Immunopharmacology and immunotoxicology, ISSN 0892-3973, E-ISSN 1532-2513, Vol. 38, no 1, p. 2-13Article in journal (Refereed)
    Abstract [en]

    Development of novel drugs for treatment of chronic inflammatory diseases is to a large extent dependent on the availability of good experimental in vivo models in order to perform preclinical tests of new drugs and for the identification of novel drug targets. Here, we review a number of existing rodent models for Rheumatoid Arthritis in the context of how these models have been utilized for developing established therapy in Rheumatoid Arthritis and, furthermore, the present use of animal models for studies of novel drug candidates. We have studied the literature in the field for the use of in vivo models during development of anti-rheumatic drugs; from Methotrexate to various antibody treatments, to novel drugs that are, or have recently been, in clinical trials. For novel drugs, we have explored websites for clinical trials. Although a single Rheumatoid Arthritis in vivo model cannot mirror the complexity of disease development, there exist a number of good animal models for Rheumatoid Arthritis, each defining some parts in disease development, which are useful for studies of drug response. We find that many of the established drugs were not tested in in vivo models before being used in the clinic, but rather animal models have been subsequently used to find mechanisms for efficacy. Finally, we report a number of novel drugs, tested in preclinical in vivo models, presently in clinical trials. © 2016 Taylor and Francis.

  • 216.
    Sardar, Samra
    et al.
    University of Copenhagen, Copenhagen, Denmark & Nordic Bioscience A/S, Copenhagen, Denmark.
    Kanne, Katrine
    University of Copenhagen, Copenhagen, Denmark & Novartis International AG, Copenhagen, Denmark.
    Andersson, Åsa
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). University of Copenhagen, Copenhagen, Denmark.
    Analysis of polymorphisms in the mediator complex subunit 13-like (Med13L) gene in the context of immune function and development of experimental arthritis2018In: Archivum Immunologiae et Therapiae Experimentalis, ISSN 0004-069X, E-ISSN 1661-4917, Vol. 66, no 5, p. 365-377Article in journal (Refereed)
    Abstract [en]

    The Mediator complex subunit 13-like (MED13L) protein is part of the multi-protein mediator complex and plays an important role in gene transcription. Polymorphisms in the MED13L gene have been linked to congenital heart anomalies and intellectual disabilities. Despite recent evidence of indirect links of MED13L to cytokine release and inflammation, impact of genetic variations in MED13L on immune cells remains unexplored. The B10.RIII and RIIIS/J mouse strains vary in susceptibility to induced experimental autoimmune disease models. From sequencing data of the two mouse strains, we identified six polymorphisms in the coding regions of Med13l. By using congenic mice, we studied the effect of these polymorphisms on immune cell development and function along with susceptibility to collagen-induced arthritis, an animal model for Rheumatoid Arthritis (RA). Combining in vivo disease data, in vitro functional data, and computational analysis of the reported non-synonymous polymorphisms, we report that genetic polymorphisms in Med13l do not affect the immune phenotype in these mice and are predicted to be non-disease associated. © The Author(s) 2018

  • 217.
    Sardar, Samra
    et al.
    Nordic Bioscience A/S, Copenhagen, Denmark.
    Kerr, Alish
    Nuritas, Dublin, Ireland.
    Vaartjes, Daniëlle
    Karolinska Institutet, Stockholm, Sweden.
    Moltved, Emilie Riis
    IQVIA Denmark, Copenhagen, Denmark.
    Karosiene, Edita
    Novo Nordisk A/S, Copenhagen, Denmark.
    Gupta, Ramneek
    Technical University of Denmark, Lyngby, Denmark.
    Andersson, Åsa
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    The oncoprotein TBX3 is controlling severity in experimental arthritis2019In: Arthritis Research & Therapy, ISSN 1478-6354, E-ISSN 1478-6362, Vol. 21, no 1, article id 16Article in journal (Refereed)
    Abstract [en]

    Background: Development of autoimmune diseases is the result of a complex interplay between hereditary and environmental factors, with multiple genes contributing to the pathogenesis in human disease as well as in experimental models for disease. The T-box protein 3 is a transcriptional repressor essential during early embryonic development, in the formation of bone and additional organ systems, and in tumorigenesis.

    Methods: With the aim to find novel genes important for autoimmune inflammation, we have performed genetic studies of collagen-induced arthritis, a mouse experimental model for Rheumatoid Arthritis.

    Results: We show that a small genetic fragment on mouse chromosome 5, including Tbx3 and three additional protein-coding genes, is linked to severe arthritis and high titers of anti-collagen antibodies. Gene expression studies have revealed differential expression of Tbx3 in B-cells, where low expression was accompanied by a higher B-cell response upon B-cell receptor stimulation in vitro. Furthermore, we show that serum TBX3 levels rise concomitantly with increasing severity of CIA.

    Conclusions: From these results, we suggest that TBX3 is a novel factor important for the regulation of gene transcription in the immune system and that genetic polymorphisms, resulting in lower expression of Tbx3, are contributing to a more severe form of collagen-induced arthritis and high titers of autoantibodies. We also propose TBX3 as a putative diagnostic biomarker for rheumatoid arthritis.

  • 218.
    Schmidt Dalzochio, Marina
    et al.
    Ecology and Evolution, University of Vale do Taquari, UNIVATES, Lajeado, Brazil.
    Périco, Eduardo
    Ecology and Evolution, University of Vale do Taquari, UNIVATES, Lajeado, Brazil.
    Renner, Samuel
    Ecology and Evolution, University of Vale do Taquari, UNIVATES, Lajeado, Brazil.
    Sahlén, Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Effect of tree plantations on the functional composition of Odonata species in the highlands of southern Brazil2018In: Hydrobiologia, ISSN 0018-8158, E-ISSN 1573-5117, Vol. 808, no 1, p. 283-300Article in journal (Refereed)
    Abstract [en]

    Changes in biodiversity have mainly been assessed using taxonomical diversity indices. Although these approaches contribute to the scientific understanding of species richness and composition patterns, trait-based metrics may be more useful for detecting responses to land use change. We used odonates as a model system to compare traits composition in mixed ombrophilous forest (MOF) and tree plantations: exotic species (Pinus sp.) and native species (Araucaria angustifolia). Our goal was to understand and compare how each vegetation type affects the selection of species traits, and which factors are responsible for the presence of the species in the environment. We recorded 36 Odonata species distributed across 14 functional groups. The functional composition varied between MOF and exotic tree plantations and was similar between these two habitats and native tree plantations. Native forest favoured specialist traits. Our results suggest that the conversion of MOF to tree plantations, especially exotic ones, results in a shift to less specialized Odonata communities with altered functional group composition. This result highlights the negative impact associated with the conversion of native forests into exotic plantations. Our results show that odonates with specialist traits are limited to natural forest sites, which makes the conservation of such areas crucial. © 2017 Springer International Publishing AG, part of Springer Nature

  • 219.
    Secomb, Josh L
    et al.
    Queensland Academy of Sport, Nathan, Australia & Edith Cowan University, Joondalup, Australia.
    Farley, Oliver R.
    Auckland University of Technology, Auckland, New Zealand.
    Nimphius, Sophia
    Centre for Exercise and Sport Science Research, Edith Cowan University, Joondalup, Australia.
    Lundgren, Lina E.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Tran, Tai T.
    Canadian Sports Institute-Pacific, Victoria, Canada.
    Sheppard, Jeremy M.
    Edith Cowan University, Joondalup, Australia & Canadian Sports Institute-Pacific, Victoria, Canada.
    The training-specific adaptations resulting from resistance training, gymnastics and plyometric training, and non-training in adolescent athletes2017In: International journal of sports science & coaching, ISSN 1747-9541, E-ISSN 2048-397X, Vol. 12, no 6, p. 762-773Article in journal (Refereed)
    Abstract [en]

    Although previous research has investigated the training-specific adaptations to training in adults, there is a paucity of research aimed at investigating these adaptations in adolescent athletes. As such, adolescent athletes’ training-specific adaptations from three different training interventions were investigated in this study. Sixteen adolescent athletes participated in this study, whereby eight performed both training interventions and eight the non-training control. Pre- and post-testing was performed for each intervention with the testing battery: ultrasonography of the vastus lateralis and lateral gastrocnemius, countermovement jump, squat jump, and isometric mid-thigh pull. The resistance training group had large significant increases in isometric mid-thigh pull relative peak force (p < 0.01, g = 0.85 (−0.01, 1.71)) and vastus lateralis fascicle length (p = 0.04, g = 0.94 (0.07, 1.80)). The gymnastics and plyometric group demonstrated large significant changes in vastus lateralis pennation angle (p = 0.03, g = −0.94 (−1.81, −0.08)) and fascicle length (p = 0.03, g = 1.07 (0.19, 1.95)), and moderate significant increases in lateral gastrocnemius thickness (p = 0.01, g = 0.63 (−0.21, 1.47)) and eccentric leg stiffness (p = 0.03, g = 0.60 (−0.24, 1.44)). No significant changes were observed for any variables in the non-training group. The resistance training evoked increases in lower-body force producing capabilities, whereas the gymnastics and plyometric training evoked changes in muscle structure and inherent muscle qualities. © 2017, © The Author(s) 2017.

  • 220.
    Selck, Henriette
    et al.
    Roskilde University, Roskilde, Denmark.
    Adamsen, Peter B.
    Ramboll Environ, Copenhagen, Denmark.
    Backhaus, Thomas
    University of Gothenburg, Gothenburg, Sweden.
    Banta, Gary T.
    Roskilde University, Roskilde, Denmark.
    Bruce, Peter K.H.
    Stockholm University, Stockholm, Sweden.
    Burton Jr., G. Allen
    University of Michigan, Ann Arbor, Michigan, USA.
    Butts, Michael B.
    DHI Group, Copenhagen, Denmark.
    Boegh, Eva
    Roskilde University, Roskilde, Denmark.
    Clague, John J.
    Simon Fraser University, Burnaby, British Columbia, Canada.
    Dinh, Khuong V.
    Technical University of Denmark, Kongens Lyngby, Denmark.
    Doorn, Neelke
    Delft University of Technology, Delft, The Netherlands.
    Gunnarsson, Jonas S.
    Stockholm University, Stockholm, Sweden.
    Hauggaard-Nielsen, Henrik
    Roskilde University, Roskilde, Denmark.
    Hazlerigg, Charles
    Enviresearch, Newcastle-upon-Tyne, United Kingdom of Great Britain and Northern Ireland.
    Hunka, Agnieszka D.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Jensen, John
    Aarhus University, Silkeborg, Denmark.
    Lin, Yan
    Norwegian Institute for Water Research, Oslo, Norway.
    Loureiro, Susana
    Department of Biology & CESAM, University of Aveiro, Aveiro, Portugal.
    Miraglia, Simona
    Technical University of Denmark, Kongens Lyngby, Denmark.
    Munns Jr., Wayne R.
    US Environmental Protection Agency, Narragansett, Rhode Island, USA.
    Nadim, Farrokh
    Norwegian Geotechnical Institute, Oslo, Norway.
    Palmqvist, Annemette
    Roskilde University, Roskilde, Denmark.
    Rämö, Robert A.
    Stockholm University, Stockholm, Sweden.
    Seaby, Lauren P.
    Roskilde University, Roskilde, Denmark.
    Syberg, Kristian
    Roskilde University, Roskilde, Denmark.
    Tangaa, Stine R.
    Roskilde University, Roskilde, Denmark.
    Thit, Amalie
    Roskilde University, Roskilde, Denmark.
    Windfeld, Ronja
    Roskilde University, Roskilde, Denmark.
    Zalewski, Maciej
    European Regional Centre for Ecohydrology (Polish Academy of Sciences), Lodz, Poland.
    Chapman, Peter M.
    Chapema Environmental Strategies, North Vancouver, British Columbia, Canada.
    Assessing and managing multiple risks in a changing world – The Roskilde recommendations2017In: Environmental Toxicology and Chemistry, ISSN 0730-7268, E-ISSN 1552-8618, Vol. 36, no 1, p. 7-16Article in journal (Refereed)
    Abstract [en]

    Roskilde University (Denmark) hosted a November 2015 workshop, Environmental Risk—Assessing and Managing Multiple Risks in a Changing World. This Focus article presents the consensus recommendations of 30 attendees from 9 countries regarding implementation of a common currency (ecosystem services) for holistic environmental risk assessment and management; improvements to risk assessment and management in a complex, human-modified, and changing world; appropriate development of protection goals in a 2-stage process; dealing with societal issues; risk-management information needs; conducting risk assessment of risk management; and development of adaptive and flexible regulatory systems. The authors encourage both cross-disciplinary and interdisciplinary approaches to address their 10 recommendations: 1) adopt ecosystem services as a common currency for risk assessment and management; 2) consider cumulative stressors (chemical and nonchemical) and determine which dominate to best manage and restore ecosystem services; 3) fully integrate risk managers and communities of interest into the risk-assessment process; 4) fully integrate risk assessors and communities of interest into the risk-management process; 5) consider socioeconomics and increased transparency in both risk assessment and risk management; 6) recognize the ethical rights of humans and ecosystems to an adequate level of protection; 7) determine relevant reference conditions and the proper ecological context for assessments in human-modified systems; 8) assess risks and benefits to humans and the ecosystem and consider unintended consequences of management actions; 9) avoid excessive conservatism or possible underprotection resulting from sole reliance on binary, numerical benchmarks; and 10) develop adaptive risk-management and regulatory goals based on ranges of uncertainty. © 2016 SETAC

  • 221.
    Sernhed, Kerstin
    et al.
    Department of Energy Sciences, Lund University, Sweden.
    Lygnerud, Kristina
    IVL Swedish Environmental Research Institute, Gothenburg, Sweden.
    Werner, Sven
    Halmstad University, School of Business, Engineering and Science, Biological and Environmental Systems (BLESS), Energy Science. Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Synthesis of recent Swedish district heating research2018In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 151, p. 126-132Article in journal (Refereed)
    Abstract [en]

    In Sweden, district heating meets currently above half of the heat demands in buildings. District heating research in Sweden has a long tradition dating back to 1975. The latest research program period included 34 projects and was executed between 2013 and 2017. In this paper, a synthesis is performed on the Swedish research frontier by assessing these recent research projects. The three study purposes was to provide an overview over the executed projects, to identify new research questions, and to identify future challenges to the Swedish district heating industry. The assessment was based on six defined key areas, such as demand, resources, system frameworks, technology, cold supply, and international perspective. The subsequent content analysis was performed from three perspectives: the perspective of energy system transition, the customer perspective, and the sustainability perspective. Final conclusions include the three future challenges for the Swedish district heating industry. These are future strategies to communicate the value of district heating, vision for district heating beyond the transition to fossil free supply, and technology development for efficient use of low temperature heat sources. © 2018 Elsevier Ltd

  • 222.
    Song, Xiao Jun
    et al.
    Halmstad University, School of Business, Engineering and Science.
    Ehde, Per Magnus
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Weisner, Stefan
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Effects of water depth and phosphorus availability on nitrogen removal in agricultural wetlands2019In: Water, ISSN 2073-4441, E-ISSN 2073-4441, article id water-641623Article in journal (Refereed)
  • 223.
    Sutton, Mark A.
    et al.
    Centre for Ecology and Hydrology (Edinburgh Research Station) (CEH), Penicuik, United Kingdom.
    Nemitz, Eriko
    Centre for Ecology and Hydrology (Edinburgh Research Station) (CEH), Penicuik, United Kingdom.
    Milford, Celia
    Centre for Ecology and Hydrology (Edinburgh Research Station) (CEH), Penicuik, United Kingdom & Institute of Earth Sciences “Jaume Almera”, The Spanish National Research Council, Barcelona, Spain.
    Campbell, Claire
    Centre for Ecology and Hydrology (Edinburgh Research Station) (CEH), Penicuik, United Kingdom.
    Erisman, Jan Willem
    Energy research Centre of the Netherlands (ECN), Petten, The Netherlands.
    Hensen, Arjan
    Energy research Centre of the Netherlands (ECN), Petten, The Netherlands.
    Cellier, Pierre
    Institut National de la Recherche Agronomique (INRA), UMR Environnement et Grandes Cultures, Thiverval-Grignon, France.
    David, M.
    Institut National de la Recherche Agronomique (INRA), UMR Environnement et Grandes Cultures, Thiverval-Grignon, France.
    Loubet, Benjamin
    Institut National de la Recherche Agronomique (INRA), UMR Environnement et Grandes Cultures, Thiverval-Grignon, France.
    Personne, Erwan
    Institut National de la Recherche Agronomique (INRA), UMR Environnement et Grandes Cultures, Thiverval-Grignon, France.
    Schjoerring, Jan Kofod
    Plant and Soil Science Laboratory, Faculty of Life Sciences, University of Copenhagen, Copenhagen, Denmark.
    Mattsson, Marie
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). Plant and Soil Science Laboratory, Faculty of Life Sciences, University of Copenhagen, Copenhagen, Denmark.
    Dorsey, James R.
    School for Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester, United Kingdom.
    Gallagher, Martin William
    School for Earth, Atmospheric and Environmental Sciences, University of Manchester, Manchester, United Kingdom.
    Horváth, László
    Hungarian Meteorological Service, Budapest, Hungary.
    Weidinger, Tamás
    Department of Meteorology, Eötvös Loránd University, Budapest, Hungary.
    Mézáros, Robért
    Department of Meteorology, Eötvös Loránd University, Budapest, Hungary.
    Dämmgen, Ulrich
    Institut für Agrar Ökologie, Bundesforschungsanstalt für Landwirtschaft, Braunschweig, Germany.
    Neftel, Albrecht
    Agroscope Reckenholz-Tänikon Research Station ART, Zürich, Switzerland.
    Herrmann, Beat
    Agroscope Reckenholz-Tänikon Research Station ART, Zürich, Switzerland.
    Lehman, B. E.
    University of Bern, Bern, Switzerland.
    Flechard, Christophe R.
    Soils, Agronomy and Spatialization Unit, UMR-SAS, INRA, Rennes, France.
    Burkhardt, Juergen K.
    Institute for Crop Science and Resource Conservation, INRES-PE, University of Bonn, Bonn, Germany.
    Dynamics of ammonia exchange with cut grassland: Synthesis of results and conclusions of the GRAMINAE Integrated Experiment2009In: Biogeosciences, ISSN 1726-4170, E-ISSN 1726-4189, Vol. 6, no 12, p. 2907-2934Article in journal (Refereed)
    Abstract [en]

    Improved data on biosphere-atmosphere exchange are fundamental to understanding the production and fate of ammonia (NH3) in the atmosphere. The GRAMINAE Integrated Experiment combined novel measurement and modelling approaches to provide the most comprehensive analysis of the interactions to date. Major intercomparisons of micrometeorological parameters and NH3 flux measurements using the aerodynamic gradient method and relaxed eddy accumulation (REA) were conducted. These showed close agreement, though the REA systems proved insufficiently precise to investigate vertical flux divergence. Grassland management had a large effect on fluxes: emissions increased after grass cutting (−50 to 700 ng m-2 s-1 NH3) and after N-fertilization (0 to 3800 ng m-2 s -1) compared with before the cut (−60 to 40 ng m-2 s -1). © Author(s) 2009.

  • 224.
    Tengblad, Stefan
    et al.
    Högskolan i Skövde, Skövde, Sverige.
    Berntson, Erik
    Stockholms universitet, Stockholm, Sverige.
    Cregård, Anna
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). Halmstad University, School of Business, Engineering and Science, Centre for Innovation, Entrepreneurship and Learning Research (CIEL).
    Organisatorisk komplexitet är också en möjlighet2018In: Att leda i en komplex organisation: Utmaningar och nya perspektiv för chefer i offentlig verksamhet / [ed] Anna Cregård, Erik Berntson & Stefan Tengblad, Stockholm: Natur och kultur, 2018, p. 183-195Chapter in book (Other (popular science, discussion, etc.))
  • 225.
    Torell, A.
    et al.
    Ängelholms sjukhus, Ängelholm, Sweden.
    Bremander, Ann
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). Lund University, Lund, Sweden & Spenshult R&D center, Halmstad, Sweden.
    Bergman, Stefan
    Lund University, Lund, Sweden; Spenshult R&D center, Halmstad, Sweden & The Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden.
    Haglund, Emma
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). Spenshult R&D center, Halmstad, Sweden.
    Symptoms of pain, fatigue and self-efficacy in young patients with spondyloarthritis: – a comparison between women and men2017In: Annals of the Rheumatic Diseases, ISSN 0003-4967, E-ISSN 1468-2060, Vol. 76, no Suppl. 2, p. 1515-1515Article in journal (Refereed)
    Abstract [en]

    Background; The disease spondyloarthritis (SpA) have often an early onset, and can debuts already in teenagers or young adults.  Knowledge of how these patients reporting pain, fatigue and self-efficacy can help to better understand the characteristics of women and men with SpA.

    Objectives: To study the differences between young women and men with SpA with regards to self-reported questionnaires on pain, fatigue and self-efficacy.

    A cross sectional population based cohort were used to create a young patients with SpA.

    Methods: The study is created on a cross-sectional population based cohort of patients with SpA.  They were identified through a health care register by searching for ICD-10 codes for SpA between the years 2003-2007, responding to a questionnaire survey in 2009. 201 patients, 18-36, 29% with the diagnosis of ankylosing spondylitis, 39% with psoriatic arthritis, and 32% with undifferentiated spondyloarhtritis form a subgroup of young patients eligible for analysis.  The surveys including questions concerning self-reported pain (NRS 0-10 and pain mannequin), fatigue (NRS 0-10), self-efficacy (ASES 10-100, low-high). The pain mannequin was used to categorize patients into groups; non chronic pain, chronic regional pain or chronic generalized pain. Self-reported disease activity (BASDAI 0-10) and health related quality of life (EQ5D, 0-1) were used to describe the group. Characteristic symptoms are reported as mean, standard deviation (SD) and frequencies. Mann- Whitney U test and Chi2 test were used to study gender differences.

    Results: The mean age (SD) was, 30 (5) years, 60 % were women. The group reported disease activity (BASDAI) of 3.8 (2.3), quality of life 0.75 (0.16), and that they had their diagnosis for 7 (5) years. One third were smokers or former smokers, and 69 % reached WHO’s recommended level of health enhancing physical activity. Women reported higher pain 3.9 (2.4) compared to men 2.9 (2.1), p=0.001. In the group of both women and men 21 % reported regional chronic pain, 41 % generalized chronic pain and the remaining 38 % reported non chronic pain. More women reported regional and generalized chronic pain than men, p=0.026. Women reported more fatigue 5.0 (2.6) compared to men 3.9 (2.7), p=0.003, less self-efficacy for pain 53 (20), compared to men 59 (21), p=0.041 and for symptoms 59 (19) compared to men 65 (20), p=0.045.

    Conclusion: A significant proportion of both women and men reported symptoms consistent with chronic generalized pain. Women reported generally impaired health compared to men, with a greater percentage with chronic pain, higher rates of pain and fatigue and reduced self-efficacy to manage pain and symptoms. This information could be valuable for clinicians in the care of young patients with SpA. 

  • 226.
    Törnblom, Margareta
    et al.
    Helsingborg Hospital, Department of Occupational Therapy and Physiotherapy, Helsingborg, Sweden & RandD Spenshult, Halmstad, Sweden.
    Andersson, Maria
    RandD Spenshult, Halmstad, Sweden & Lund University, Department of Clinical Sciences, Department of Rheumatology, Lund, Sweden.
    Trulsson Schouenborg, Anna
    Skåne University Hospital, Department of Pain Rehabilitation, Lund, Sweden & Lund University, Department of Health Sciences, Physiotherapy, Lund, Sweden.
    Haglund, Emma
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). RandD Spenshult, Halmstad, Sweden.
    Validation of the Test for Substitution Patterns - in individuals with symptomatic knee osteoarthritis2019In: Annals of the Rheumatic Diseases, ISSN 0003-4967, E-ISSN 1468-2060, Vol. 78, no Suppl 2, p. 0712-0712Article in journal (Refereed)
    Abstract [en]

    Background: Few tools evaluates quality of movements in individuals with knee osteoarthritis (OA). The Test for Substitution Patterns (TSP) is developed to measure the ability to perform five functional movements regarding postural control and altered movement patterns (1). TSP is validated and reliable in individuals with anterior cruciate ligament injury, but has not yet been evaluated in individuals with knee OA.

    Objectives: To study the relationships between the OA modified TSP (OA-TSP) and self-reported knee function as measured with the Knee Injury and osteoarthritis Outcome Score (KOOS) and the 30-s chair stand test (30-s CST) in individuals with symptomatic knee OA. A second aim was to study the discriminative ability of the OA-TSP for unilateral knee pain.

    Methods: Sixty-two individuals with symptomatic knee osteoarthritis were included using consecutive sampling. Health status was assessed with the EuroQol five dimension scale (EQ5D, 0-1 worst-best), and knee function in five subscales for KOOS (pain, symptoms, ADL, quality of life and sport/recreation, 0-100 worst-best). The 30-s CST-test measured the number of rises in 30 seconds. In the OA-TSP, substitution patterns are observed and scored from 0-3 (no substitution pattern-poorly performed) during five standardized functional movements. The maximum score is 54 points/side with score of 108 points. Median and min-max were used for all descriptive data. Spearman´s correlation and Wilcoxon signed rank test were used for analyzes. A correlation coefficient rs ≥±0.50 is considered large, ±0.30 to < 0.50 moderate and ±0.10 < 0.30 small.

    Results: The median age was 54 years (30-61), 76% were women. The median Body Mass Index was 25 (18-48) and EQ5D 0.8 (0.29-1.00). There were no significant differences between the gender regarding BMI and EQ5D. Median OA-TSP total score was 29 (10-70). Median KOOS pain was 75 (36-100), symptoms 71 (21-96), ADL 87 (30-100), and sport/rec 50 (0-100). In the 30-s CST the median was 16 raises (5-32). Moderate, significant correlations were observed between TSP total score and KOOS pain and KOOS ADL (rs=-0.30; p=0.03, rs=-0.35; p=0.01 respectively) and small correlations between TSP and KOOS sport/recreation and KOOS symptoms (rs=-0.13; p=0.36, rs=-0.22; p=0.11 respectively). There was a moderate, significant correlation between TSP total score and 30-s CST (rs=-0.34; p<0.01). Discriminative ability for the TSP for unilateral knee pain was found to be significant worse in the painful side, with median 18 (2-36) vs. 14 (7-37) in the not painful side, p=0.001.

    Conclusion: The OA-TSP could be used as a functional test to detect altered knee alignment interpreted as an early sign of knee OA and assist the physiotherapist in functional testing during the rehabilitation of individuals with symptomatic knee OA.

  • 227.
    Urrutia-Cordero, Pablo
    et al.
    Halmstad University, School of Business, Engineering and Science. Univ Autonoma Madrid, Dept Biol, Madrid 28049, Spain..
    Agha, Ramsy
    Univ Autonoma Madrid, Dept Biol, Madrid 28049, Spain..
    Cires, Samuel
    Univ Autonoma Madrid, Dept Biol, Madrid 28049, Spain..
    Angeles Lezcano, Maria
    Univ Autonoma Madrid, Dept Biol, Madrid 28049, Spain..
    Sanchez-Contreras, Maria
    Univ Autonoma Madrid, Dept Biol, Madrid 28049, Spain..
    Waara, Karl-Otto
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Utkilen, Hans
    Norwegian Inst Publ Hlth, Dept Water Hyg, N-0403 Oslo, Norway..
    Quesada, Antonio
    Univ Autonoma Madrid, Dept Biol, Madrid 28049, Spain..
    Effects of harmful cyanobacteria on the freshwater pathogenic free-living amoeba Acanthamoeba castellanii2013In: Aquatic Toxicology, ISSN 0166-445X, E-ISSN 1879-1514, Vol. 130, p. 9-17Article in journal (Refereed)
    Abstract [en]

    Grazing is a major regulating factor in cyanobacterial population dynamics and, subsequently, considerable effort has been spent on investigating the effects of cyanotoxins on major metazoan grazers. However, protozoan grazers such as free-living amoebae can also feed efficiently on cyanobacteria, while simultaneously posing a major threat for public health as parasites of humans and potential reservoirs of opportunistic pathogens. In this study, we conducted several experiments in which the freshwater amoeba Acanthamoeba castellanii was exposed to pure microcystin-LR (MC-LR) and six cyanobacterial strains, three MC-producing strains (MC-LR, MC-RR, MC-YR, MC-WR, [Dha7] MC-RR) and three strains containing other oligopeptides such as anabaenopeptins and cyanopeptolins. Although the exposure to high concentrations of pure MC-LR yielded no effects on amoeba, all MC-producing strains inflicted high mortality rates on amoeba populations, suggesting that toxic effects must be mediated through the ingestion of toxic cells. Interestingly, an anabaenopeptin-producing strain caused the greatest inhibition of amoeba growth, indicating that toxic bioactive compounds other than MCs are of great importance for amoebae grazers. Confocal scanning microscopy revealed different alterations in amoeba cytoskeleton integrity and as such, the observed declines in amoeba densities could have indeed been caused via a cascade of cellular events primarily triggered by oligopeptides with protein-phosphatase inhibition capabilities such as MCs or anabaenopeptins. Moreover, inducible-defense mechanisms such as the egestion of toxic, MC-producing cyanobacterial cells and the increase of resting stages (encystation) in amoebae co-cultivated with all cyanobacterial strains were observed in our experiments. Consequently, cyanobacterial strains showed different susceptibilities to amoeba grazing which were possibly influenced by the potentiality of their toxic secondary metabolites. Hence, this study shows the importance of cyanobacterial toxicity against amoeba grazing and, that cyanobacteria may contain a wide range of chemical compounds capable of negatively affect free-living, herbivorous amoebae. Moreover, this is of high importance for understanding the interactions and population dynamics of such organisms in aquatic ecosystems. (c) 2012 Elsevier B.V. All rights reserved.

  • 228.
    Van der Elst, Kristien
    et al.
    Department of Rheumatology, University Hospitals Leuven, Leuven, Belgium & Skeletal Biology and Engineering Research Centre, Department of Development and Regeneration, KU Leuven–University of Leuven, Leuven, Belgium.
    Bremander, Ann
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). Department of Clinical Sciences, Section of Rheumatology, Lund University, Lund, Sweden & Research and Development Centre, Spenshult, Halmstad, Sweden.
    De Groef, An
    Department of Rehabilitation Sciences, KU Leuven – University of Leuven, Leuven, Belgium.
    Larsson, Ingrid
    Halmstad University, School of Health and Welfare, Centre of Research on Welfare, Health and Sport (CVHI).
    Mathijssen, Elke G.E.
    Department of Rheumatology, Sint Maartenskliniek, Nijmegen, The Netherlands.
    Vriezekolk, Johanna E.
    Department of Rheumatology, Sint Maartenskliniek, Nijmegen, The Netherlands.
    Westhovens, Rene
    Department of Rheumatology, University Hospitals Leuven, Leuven, Belgium & Skeletal Biology and Engineering Research Centre, Department of Development and Regeneration, KU Leuven–University of Leuven, Leuven, Belgium.
    van Eijk-Hustings, Yvonne J.L.
    Department of Clinical Epidemiology and Medical Technology Assessment, Maastricht University Medical Centre, Maastricht, The Netherlands & Department of Rheumatology, Maastricht University Medical Centre, Maastricht, The Netherlands.
    European Qualitative research project on Patient-preferred outcomes in Early Rheumatoid Arthritis (EQPERA): rationale, design and methods of a multinational, multicentre, multilingual, longitudinal qualitative study2019In: BMJ Open, ISSN 2044-6055, E-ISSN 2044-6055, Vol. 9, no 3, article id e023606Article in journal (Refereed)
    Abstract [en]

    INTRODUCTION: Including the patient perspective is important to achieve optimal outcomes in the treatment of rheumatoid arthritis (RA). Ample qualitative studies exist on patient outcomes in RA. A Belgian study recently unravelled what matters most to patients throughout the overwhelming and rapidly evolving early stage of RA. The present study, European Qualitative research project on Patient-preferred outcomes in Early Rheumatoid Arthritis (EQPERA) was created to contribute to a more universal understanding of patient-preferred health and treatment outcomes by integrating the perspectives of patients with early RA from three European countries.

    METHODS AND ANALYSIS: In EQPERA, a qualitative, explorative, longitudinal study will be implemented in The Netherlands and Sweden, parallel to the methods applied in the previously conducted Belgian study. In each country, a purposive sample of patients with early RA will be individually interviewed 3-6 months after start of the initial RA treatment and subsequently, the same participants will be invited to take part in a focus group 12-18 months after RA treatment initiation. Data collection and analysis will be independently conducted by the local research teams in their native language. A meta-analysis of the local findings will be performed to explore and describe similarities, differences and patterns across countries.

    ETHICS AND DISSEMINATION: Ethics approval was granted by the responsible local ethics committees. EQPERA follows the recommendations of the Declaration of Helsinki. Two main papers are foreseen (apart from the data reporting on the local findings) for peer-reviewed publication.

    © Author(s) (or their employer(s)) 2019.

  • 229.
    Vedantha Krishna, Amogh
    et al.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Flys, Olena
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). RISE, Research Institutes of Sweden, Borås, Sweden.
    Reddy, Vijeth Venkataram
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Leicht, Alexander
    Chalmers University of Technology, Gothenburg, Sweden .
    Hammar, Lars
    Chalmers University of Technology, Gothenburg, Sweden .
    Rosén, Bengt Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Potential approach towards effective topography characterization of 316L stainless steel components produced by selective laser melting process2018In: European Society for Precision Engineering and Nanotechnology, Conference Proceedings - 18th International Conference and Exhibition, EUSPEN 2018, Bedford: euspen , 2018, p. 259-260Conference paper (Refereed)
    Abstract [en]

    In this paper, an attempt is made to explain the surface texture of Selective Laser Melting (SLM) parts more satisfyingly than the existing methods. Investigations were carried out on the 316L stainless steel SLM samples. To account for most of the surface conditions, a truncheon artefact was employed for the analysis. A Stylus Profilometer was employed as a metrology tool for obtaining the 3D surface measurements. A methodology is proposed to extract and characterize the topographic features of Additive Manufactured (AM) surfaces. Here, the overall roughness of the surface is segregated into the roughness of the powder particles and the waviness due to thermal and the “staircase” effects. Analyzing these features individually results in an increased understanding of the AM process and an opportunity to optimize machine settings.

  • 230.
    Vedantha Krishna, Amogh
    et al.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Flys, Olena
    Reddy, Vijeth Venkataram
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Rosén, Bengt Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Surface topography characterization using 3D stereoscopic reconstruction of SEM images2018In: Surface Topography: Metrology and Properties, ISSN 2051-672X, Vol. 6, no 2, article id 024006Article in journal (Refereed)
    Abstract [en]

    A major drawback of the optical microscope is its limitation to resolve finer details. Many microscopes have been developed to overcome the limitations set by the diffraction of visible light. The scanning electron microscope (SEM) is one such alternative: it uses electrons for imaging, which have much smaller wavelength than photons. As a result high magnification with superior image resolution can be achieved. However, SEM generates 2D images which provide limited data for surface measurements and analysis. Often many research areas require the knowledge of 3D structures as they contribute to a comprehensive understanding of microstructure by allowing effective measurements and qualitative visualization of the samples under study. For this reason, stereo photogrammetry technique is employed to convert SEM images into 3D measurable data. This paper aims to utilize a stereoscopic reconstruction technique as a reliable method for characterization of surface topography. Reconstructed results from SEM images are compared with coherence scanning interferometer (CSI) results obtained by measuring a roughness reference standard sample. This paper presents a method to select the most robust/consistent surface texture parameters that are insensitive to the uncertainties involved in the reconstruction technique itself. Results from the two-stereoscopic reconstruction algorithms are also documented in this paper. © 2018 IOP Publishing Ltd.

  • 231.
    Vedantha Krishna, Amogh
    et al.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Flys, Olena
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS). Research Institutes of Sweden (RISE), Borås, Sweden.
    Reddy, Vijeth Venkataram
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Rosén, Bengt-Göran
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Surface topography characterization using 3D stereoscopic reconstruction of SEM images2017In: Mets&Props 2017: Mets&Props 2017: 16th International Conference on Metrology and Properties of Engineering Surfaces: Conference abstracts, 2017, 2017, p. 219-221Conference paper (Refereed)
  • 232.
    Verikas, Antanas
    et al.
    Halmstad University, School of Information Technology, Halmstad Embedded and Intelligent Systems Research (EIS), CAISR - Center for Applied Intelligent Systems Research. Kaunas University of Technology, Kaunas, Lithuania.
    Parker, James
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Bacauskiene, Marija
    Kaunas University of Technology, Kaunas, Lithuania.
    Olsson, M. Charlotte
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Exploring relations between EMG and biomechanical data recorded during a golf swing2017In: Expert systems with applications, ISSN 0957-4174, E-ISSN 1873-6793, Vol. 88, p. 109-117Article in journal (Refereed)
    Abstract [en]

    Exploring relations between patterns of peak rotational speed of thorax, pelvis and arm, and patterns of EMG signals recorded from eight muscle regions of forearms and shoulders during the golf swing is the main objective of this article. The linear canonical correlation analysis, allowing studying relations between sets of variables, was the main technique applied. To get deeper insights, linear and nonlinear random forests-based prediction models relating a single output variable, e.g. a thorax peak rotational speed, with a set of input variables, e.g. an average intensity of EMG signals were used. The experimental investigations using data from 16 golfers revealed statistically significant relations between sets of input and output variables. A strong direct linear relation was observed between lin- ear combinations of EMG averages and peak rotational speeds. The coefficient of determination values R2 = 0 . 958 and R2 = 0 . 943 obtained on unseen data by the random forest models designed to predict peak rotational speed of thorax and pelvis , indicate high modelling accuracy. However, predictions of peak rotational speed of arm were less accurate. This was expected, since peak rotational speed of arm played a minor role in the linear combination of peak speeds. The most important muscles to predict peak rotational speed of the body parts were identified. The investigations have shown that the canon- ical correlation analysis is a promising tool for studying relations between sets of biomechanical and EMG data. Better understanding of these relations will lead to guidelines concerning muscle engagement and coordination of thorax, pelvis and arms during a golf swing and will help golf coaches in providing substantiated advices. ©2017 Elsevier Ltd. All rights reserved.

  • 233.
    Weisner, Stefan
    et al.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Johannesson, Karin
    IFM Biology, Linköping University, Linköping, Sweden.
    Thiere, Geraldine
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Svengren, Henrik
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Ehde, Per Magnus
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Tonderski, Karin S.
    IFM Biology, Linköping University, Linköping, Sweden.
    National Large-Scale Wetland Creation in Agricultural Areas—Potential versus Realized Effects on Nutrient Transports2016In: Water, ISSN 2073-4441, E-ISSN 2073-4441, Vol. 8, no 11, article id 544Article in journal (Refereed)
    Abstract [en]

    During 2007–2013, the Swedish Board of Agriculture granted support within a national program to about 1000 wetlands, corresponding to a 5300-hectare wetland area, with the dual goal to remove nutrients from water and to improve biodiversity in agricultural landscapes. The aim of the present study was to compare the effects on nutrient transports that are realized within the national program to what could be obtained with the same area of wetlands if location and design of wetlands were optimized. In single, highly nutrient-loaded wetlands, a removal of around 1000 kg nitrogen and 100 kg phosphorus per hectare wetland area and year was estimated from monitoring data. Statistical models were developed to estimate the overall nutrient removal effects of wetlands created within the national program. Depending on model, the effect of the national program as a whole was estimated to between 27 and 38 kg nitrogen and between 2.7 and 4.5 kg phosphorus per hectare created wetland area and year. Comparison of what is achieved in individual wetlands to what was achieved in the national program indicates that nutrient removal effects could be increased substantially in future wetland programs by emphasising location and design of wetlands.

  • 234.
    Werner, Sven
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    District heating and cooling in Sweden2017In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 126, p. 419-429Article in journal (Refereed)
    Abstract [en]

    The purpose with this review is to provide a presentation of the background and current position for district heating and cooling in Sweden. The review structure considers the market, technical, supply, environmental, institutional, and future contexts. The main conclusions are high utilisation of district heating in Swedish buildings, commitment to the third generation of district heating technology, high proportions of heat recycling and renewable supply, high compliance to European definition of efficient district heating, considerable reductions of fossil carbon dioxide emissions, strong national driving forces from high fossil fuel taxes, and soft district heating regulation based on transparency. District cooling systems are small compared to district heating systems. From strong legislative driving forces, the Swedish heat market became a testing ground for a market situation when fossil fuels are expensive in a heat market. The long-term market solutions have then become district heating in dense urban areas and local heat pumps in suburban and rural areas. © 2017 The Author. Published by Elsevier Ltd.

  • 235.
    Werner, Sven
    Halmstad University, School of Business, Engineering and Science, Biological and Environmental Systems (BLESS), Energy Science. Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Fjärrvärmens framtida roll i Europa2017Report (Other academic)
  • 236.
    Werner, Sven
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    International review of district heating and cooling2017In: Energy, ISSN 0360-5442, E-ISSN 1873-6785, Vol. 137, p. 617-631Article, review/survey (Refereed)
    Abstract [en]

    The purpose with this review is to provide a presentation of the background for the current position for district heating and cooling in the world, with some deeper insights into European conditions. The review structure considers the market, technical, supply, environmental, institutional, and future contexts. The main global conclusions are low utilisation of district heating in buildings, varying implementation rates with respect to countries, moderate commitment to the fundamental idea of district heating, low recognition of possible carbon dioxide emission reductions, and low awareness in general of the district heating and cooling benefits. The cold deliveries from district cooling systems are much smaller than heat deliveries from district heating systems. The European situation can be characterised by higher commitment to the fundamental idea of district heating, lower specific carbon dioxide emissions, and higher awareness of the district heating and cooling benefits. The conclusions obtained from the six contexts analysed show that district heating and cooling systems have strong potentials to be viable heat and cold supply options in a future world. However, more efforts are required for identification, assessment, and implementation of these potentials in order to harvest the global benefits with district heating and cooling. © 2017 The Author

  • 237.
    Werner, Sven
    et al.
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Lygnerud, Kristina
    IVL Svenska miljöinstitutet, Sverige.
    Sernhed, Kerstin
    Lunds Universitet, Lund, Sverige.
    Lauenburg, Patrick
    Lunds Universitet, Lund, Sverige.
    En syntes av Fjärrsyn 2013-2017: Bortom förnybart2017Report (Other academic)
  • 238.
    Wikenros, Camilla
    et al.
    Grimsö Wildlife Research Station, Department of Ecology, Swedish University of Agricultural Sciences, Riddarhyttan, Sweden.
    Aronsson, Malin
    Grimsö Wildlife Research Station, Department of Ecology, Swedish University of Agricultural Sciences, Riddarhyttan, Sweden.
    Liberg, Olof
    Grimsö Wildlife Research Station, Department of Ecology, Swedish University of Agricultural Sciences, Riddarhyttan, Sweden.
    Jarnemo, Anders
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Hansson, Jessica
    Halmstad University.
    Wallgren, Märtha
    3 Forestry Research Institute of Sweden, Uppsala Science Park, SE-751 83, Uppsala, Sweden.
    Sand, Håkan
    Grimsö Wildlife Research Station, Department of Ecology, Swedish University of Agricultural Sciences, Riddarhyttan, Sweden.
    Bergström, Råger
    3 Forestry Research Institute of Sweden, Uppsala Science Park, SE-751 83, Uppsala, Sweden.
    Fear or food - Abundance of red fox in relation to occurrence of lynx and Wolf2017In: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 7, no 1, article id 9059Article in journal (Refereed)
    Abstract [en]

    Apex predators may affect mesopredators through intraguild predation and/or supply of carrion from their prey, causing a trade-off between avoidance and attractiveness. We used wildlife triangle snow-tracking data to investigate the abundance of red fox (Vulpes vulpes) in relation to lynx (Lynx lynx) and wolf (Canis lupus) occurrence as well as land composition and vole (Microtus spp.) density. Data from the Swedish wolf-monitoring system and VHF/GPS-collared wolves were used to study the effect of wolf pack size and time since wolf territory establishment on fox abundance. Bottom-up processes were more influential than top-down effects as the proportion of arable land was the key indicator of fox abundance at the landscape level. At this spatial scale, there was no effect of wolf abundance on fox abundance, whereas lynx abundance had a positive effect. In contrast, at the wolf territory level there was a negative effect of wolves on fox abundance when including detailed information of pack size and time since territory establishment, whereas there was no effect of lynx abundance. This study shows that different apex predator species may affect mesopredator abundance in different ways and that the results may be dependent on the spatiotemporal scale and resolution of the data. © 2017 The Author(s).

  • 239.
    Wikenros, Camilla
    et al.
    Grimsö Wildlife Research Station, Department of Ecology, Swedish University of Agricultural Sciences, Riddarhyttan, Sweden; Mammal Research Institute, Polish Academy of Sciences, Białowieża, Poland.
    Jarnemo, Anders
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Frisén, Marielle
    Halmstad University.
    Kuijper, Dries P. J.
    Mammal Research Institute, Polish Academy of Sciences, Waszkiewicza 1, Białowieża, Poland.
    Schmidt, Krzysztof
    Mammal Research Institute, Polish Academy of Sciences, Białowieża, Poland.
    Mesopredator behavioral response to olfactory signals of an apex predator2017In: Journal of ethology, ISSN 0289-0771, E-ISSN 1439-5444, Vol. 35, no 2, p. 161-168Article in journal (Refereed)
    Abstract [en]

    Olfactory signals constitute an important mechanism in interspecific interactions, but little is known regarding their role in communication between predator species. We analyzed the behavioral responses of a mesopredator, the red fox (Vulpes vulpes), to an olfactory cue (scat) of an apex predator, the lynx (Lynx lynx) in BiałowieÅŒa Primeval Forest, Poland, using video camera traps. Red fox visited sites with scats more often than expected and the duration of their visits was longer at scat sites than at control sites (no scat added). Vigilant behavior, sniffing and scent marking (including over-marking) occurred more often at scat sites compared to control sites, where foxes mainly passed by. Vigilance was most pronounced during the first days of the recordings. Red fox behavior was also influenced by foxes previously visiting scat sites. They sniffed and scent marked (multiple over-marking) more frequently when the lynx scat had been over-marked previously by red fox. Fox visits to lynx scats may be seen as a trade-off between obtaining information on a potential food source (prey killed by lynx) and the potential risk of predation by an apex predator. © 2017, The Author(s).

  • 240.
    Wu, Yi Ning
    et al.
    Halmstad University, School of Business, Engineering and Science. School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China.
    Mattsson, Marie
    Halmstad University, School of Business, Engineering and Science, The Rydberg Laboratory for Applied Sciences (RLAS).
    Ding, Min Wei
    Halmstad University, School of Business, Engineering and Science. School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China.
    Wu, Meng T.
    School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China.
    Mei, Juan
    School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China.
    Shen, Yao Liang
    School of Environmental Science and Engineering, Suzhou University of Science and Technology, Suzhou, China.
    Effects of Different Pretreatments on Improving Biogas Production of Macroalgae Fucus Vesiculosus and Fucus Serratus in Baltic Sea2019In: Energy & Fuels, ISSN 0887-0624, E-ISSN 1520-5029, Vol. 33, no 3, p. 2278-2284Article in journal (Refereed)
    Abstract [en]

    Global warming along with energy demand and rising prices of natural energy resources have motivated studies to find some renewable and clean energy. The use of algae as the third-generation biofuel can avoid the competition for farmland, and algae can be considered as a potential future source of renewable energy. Algae can be used for biogas production through anaerobic digestion (AD). Fucus vesiculosus and Fucus serratus are the two dominating species of brown seaweed growing in the Baltic Sea in the southwest of Sweden. Pretreatment can significantly affect the biogas production because hydrolysis of the algae cell wall structure is a rate-limiting step in the AD process. In this study, four different pretreatments: mechanical, microwave (600 W, 2 min), ultrasonic (110 V, 15 min), and microwave combined with ultrasonic (600 W, 2 min; 110 V, 15 min) were applied to the seaweed and then codigested with a biogas plant leachate. The aim of this study was to investigate methane yields from AD after these pretreatments. The results showed that when compared with only mechanical pretreatment, the ultrasonic, ultrasonic combined with microwave, and microwave pretreatments could obtain increased cumulative methane yields of 167, 185, and 156%, respectively. The combined pretreatment showed a maximum methane yield of 260 mL/g·of volatile solids after 20 days of digestion. The ultrasonic combined with microwave pretreatment showed a significant improvement in methane yield when compared with the mechanical pretreatment. Copyright © 2019 American Chemical Society

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