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  • 1.
    Bergh, Jan-Erik
    Dalarna University, School of Education and Humanities, Biology.
    Skadedjursbekämpning med låg syrehalt av herbarier och insektssamlingar2003In: Syrefria mikroklimat : förebyggande konservering / [ed] Fjaestad, Monika; Åkerlund, Monika; Bergh, Jan-Erik, Stockholm: Riksantikvarieämbetets förlag , 2003, p. 68-81Chapter in book (Other academic)
  • 2.
    Bergh, Jan-Erik
    et al.
    Dalarna University, School of Education and Humanities, Biology.
    Ann, Hallström
    Anoxic treatment of a moth-infected saddle2000In: Nordisk Museologi, ISSN 1103-8152, no 2, p. 119-122Article in journal (Other academic)
    Abstract [en]

    Pest insects pose a continuous and serious threat to museum objects that are organic in origin. Traditionally various chemical substances have been used for insect control, but in recent decades there has been increased concern about the disadvantages of this type of control strategy (Dawson 1988). Among the alternative control methods developed for museum use in recent decades, low oxygen treatment (Gilberg 1991)is of special interest. Using nitrogen or argon to replace oxygen, produces no residues and allows a conditioning of the gas regarding temperature and relative humidity. The first practical application in the Nordic countries of this method took place at Skokloster Castle in Central Sweden.

  • 3.
    Bergh, Jan-Erik
    et al.
    Dalarna University, School of Education and Humanities, Biology.
    Jensen, K.-M. V
    Åkerlund, M.
    Stengård Hansen, L.
    Andrén, M.
    A contribution to standards for freezing as a pest control method for museums2006In: Collection Forum, ISSN 0831-4985, Vol. 21, no 1-2, p. 117-125Article in journal (Refereed)
  • 4.
    Bergh, Jan-Erik
    et al.
    Dalarna University, School of Education and Humanities, Biology.
    Rönnegård, L.
    Barns bilder av forskare2005In: Rikskonferensen för ämnesdidaktik, Karlstad, 2005Conference paper (Other academic)
  • 5.
    Bergh, Jan-Erik
    et al.
    Dalarna University, School of Education and Humanities, Biology.
    Stengård Hansen, L
    Vagn Jensen, K-M
    Vaeggemose Nielsen, P
    The Effect of Anoxic Treatment on the Larvae of Six Species of Dermestids (Coleoptera)2003In: Journal of applied entomology, ISSN 0931-2048, E-ISSN 1439-0418, no 127, p. 317-321Article in journal (Refereed)
  • 6.
    Bergh, Jan-Erik
    et al.
    Dalarna University, School of Education and Humanities, Biology.
    Åkerlund, M.
    Anoxic treatment of insect collections and implications of drawer design2007In: Collection Forum, ISSN 0831-4985, Vol. 22, no 1-2, p. 10-22Article in journal (Refereed)
  • 7.
    Bergh, Jan-Erik
    et al.
    Dalarna University, School of Education and Humanities, Biology.
    Åkerlund, Monika
    Hallström, Ann
    Kvävgasbehandling av malangripna sadlar med VELOXY® kvävegeneratorer2003In: Syrefria mikroklimat : förebyggande konservering / [ed] Fjæstad, Monika; Åkerlund, Monika; Bergh, Jan-Erik, Riksantikvarieämbetets förlag , 2003, p. 82-85Chapter in book (Other academic)
  • 8. Espeland, Marianne
    et al.
    Irestedt, Martin
    Johanson, Kjell Arne
    Akerlund, Monika
    Bergh, Jan-Erik
    Dalarna University, School of Education, Health and Social Studies, Biology.
    Kallersjo, Mari
    Dichlorvos exposure impedes extraction and amplification of DNA from insects in museum collections2010In: Frontiers in Zoology, ISSN 1742-9994, E-ISSN 1742-9994, Vol. 7, article id 2Article in journal (Refereed)
    Abstract [en]

    Background: The insecticides dichlorvos, paradichlorobenzene and naphthalene have been commonly used to eradicate pest insects from natural history collections. However, it is not known how these chemicals affect the DNA of the specimens in the collections. We thus tested the effect of dichlorvos, paradichlorobenzene and naphthalene on DNA of insects (Musca domestica) by extracting and amplifying DNA from specimens exposed to insecticides in two different concentrations over increasing time intervals. Results: The results clearly show that dichlorvos impedes both extraction and amplification of mitochondrial and nuclear DNA after relatively short time, whereas paradichlorobenzene and naphthalene do not. Conclusion: Collections treated with paradichlorobenzene and naphthalene, are better preserved concerning DNA, than those treated with dichlorvos. Non toxic pest control methods should, however, be preferred due to physical damage of specimens and putative health risks by chemicals.

  • 9.
    Petersson, Maria
    et al.
    Dalarna University, School of Education and Humanities, Biology.
    Bergh, Jan-Erik
    Dalarna University, School of Education and Humanities, Biology.
    Kan en röd tråd och Linnés anda bidra till lärares engagemang i Nature of Science?2007In: Fagdidaktikk mellom skole og lærerutdanning, Oslo, 2007Conference paper (Other academic)
    Abstract [sv]

    I samband med firandet av Linnéjubiléet 2007 görs stora satsningar för att för att intressera allmänhet och ungdomar för naturvetenskap. Ett syfte är att sprida kunskap om vetenskapsprocesser i ”Linnés anda”, vilket innebär att man vill öka nyfikenheten på naturvetenskap, få förståelse för kretivitet och entreprenörskap, inte minst hos det uppväxande släktet. Linnéprojektet och biologiresurscentrum har tagit fram resurser för skolprojekt Linné och projektet Röda tråden finansierar en stor del av de skolprojekt som genomförs i Dalarna. Vid Högskolan Dalarna kommer det att ges två olika kurser, som har till syfte att inspirera lärare till att undervisa om Nature of Science, samt att reflektera över den egna undervisningen. Den ena kursen har med utgångspunkt från Carl von Linné som syfte att engagera lärare från förskola till grundskola. Den andra kursen, som riktar sig till lärarstuderanden och gymnasielärare eller lärare på grundskolans senare år med minst ett års akademiska studier i biologi, problematiserar vetenskapshistoria i biologi genom att studera ”arvet efter Linne och Darwin i modern biologi”. I Röda tråden-projektet genomförs även en högre seminarieserie och i detta kommer erfarenheter av kurserna att utvärderas med utgångspunkt från hur lärare/lärarstuderanden har använt de olika aspekterna av kursernas innehåll för att utveckla och beskriva sin egen undervisning. Är det möjligt att undervisa för nyfikenhet? På vilket sätt kan man understödja och inspirera lärare för att undervisa om naturvetenskap i Linnés anda? Vårt konferensbidrag syftar till att analysera på vad vis de beskrivna kurserna kan bidraga till en större förståelse för vad Nature of Science innebär, samt att diskutera vilka aspekter på Nature of Science, som går att identifiera i Skolprojekt Linné.

  • 10. Åkerlund, M
    et al.
    Bergh, Jan-Erik
    Dalarna University, School of Education and Humanities, Biology.
    Anoxic treatment of large mounted natural history specimen2003In: Manuscript to NOOX3, Conference at The British Library and The Natural History Museum, London, 2003Conference paper (Refereed)
  • 11. Åkerlund, M
    et al.
    Bergh, Jan-Erik
    Dalarna University, School of Education and Humanities, Biology.
    Skadedjursbekämpning med låg syrehalt2003In: Realia, ISSN 0283-4618, Vol. 24, no 2, p. 13-14Article in journal (Other academic)
  • 12. Åkerlund, Monika
    et al.
    Bergh, Jan-Erik
    Dalarna University, School of Education and Humanities, Biology.
    Behandling med låg syrehalt av ett stort naturhistoriskt museiföremål2003In: Syrefria mikroklimat: förebyggande konservering / [ed] Fjæstad, Monika; Åkerlund, Monika; Bergh, Jan-Erik, Riksantikvarieämbetets förlag , 2003, p. 62-67Chapter in book (Other academic)
  • 13. Åkerlund, Monika
    et al.
    Bergh, Jan-Erik
    Dalarna University, School of Education and Humanities, Biology.
    Nitrogen treatment: An insect case study2001In: Integrated Pest Management for Collections. Proceedings of 2001: A Pest Odyssey / [ed] Kingsley, Helen; Pinniger, David; Xavier-Rowe, Amber; Winsor, Peter, London, 2001Conference paper (Other academic)
    Abstract [en]

    Anoxic treatment was tested for pest control on three types of insect cases. Test animals were larvae of Trogoderma angustum (Solier) and Anthrenus verbasci (L). Cases were enclosed in low diffusion plastic and the oxygen level was reduced by use of the VELOXY nitrogen generator. Test was performed 1) with nitrogen treatment only, 2) with 2 sachets of Ageless 200 added during one and two weeks respectively and 3) with 4 and 8 sachets of Ageless 200 added during one week. Oxygen level was reduced to 0.2% by the VELOXY. Temperature was about 22º C and RH around 28% in the cases. In the treatment with VELOXY only, all test specimens died. With 2 Ageless 200 almost all insects survived one week. After two weeks a few larvae survived in the tightest case. With 4 Ageless 200, 3 Trogoderma survived in the tightest case. With 8 sachets all insects died.

  • 14. Åkerlund, Monika
    et al.
    Bergh, Jan-Erik
    Dalarna University, School of Education and Humanities, Biology.
    Skadedjursbekämpning med låg syrehalt2003In: Realia, ISSN 0283-4618, Vol. 24, no 2, p. 13-14Article in journal (Other academic)
1 - 14 of 14
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