Sökning: "Myror"

Visar resultat 1 - 5 av 9 avhandlingar innehållade ordet Myror.

  1. 1. Behaviour of Lycaenid butterfly larvae in their mutualistic interactions with ants

    Författare :Annkristin H. Axén; Judith L. Bronstein; Stockholms universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Fjärilar; myror; djurekologi; etologi; Ethology;

    Sammanfattning : Interspecific mutualism often involves partners trading different kinds of services. The cost and benefits of the trade may differ from one interaction to the next, or fluctuate over time in a single interaction, due to factors both internal and external to the mutualism itself. LÄS MER

  3. 2. Historiola de formicis, qvam cum beneplacito amplissimæ facult. phil. Vpsal. præside ... Johanne Bilberg ... exercitii gratia publicè sistit Johannes Hammarin E. f. Uplandus in audit. Gustav. maj. ad d. 7 Junii a:o 1690

    Författare :Johan Bilberg; Johannes Erici Hammarin; Johan Bilberg; Uppsala universitet; []
    Nyckelord :Ants; Myror;

    Sammanfattning : .... LÄS MER

  4. 3. Responses to reduced industrial metal emissions : An ecotoxicological study on Pied Flycatcher (Ficedula hypoleuca, Aves)

    Författare :Åsa Berglund; Erik Nyholm; John Elliott; Umeå universitet; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Toxicology; Toxikologi; Other biology; Övrig biologi; ekotoxikologi; Ecotoxicology; zooekologi; Animal Ecology; environmental science; miljövetenskap;

    Sammanfattning : Metals have been used by humans for thousands of years, and this has resulted in increased concentrations in the biosphere. The environment around point-sources, such as mines and smelters, are of particular concern, as metals may accumulate to high concentrations, and potentially reach levels toxic to the local flora and fauna. LÄS MER

  5. 4. Dynamics in Random Boolean Networks

    Författare :Björn Samuelsson; Funktionell zoologi; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; gravitation; relativity; quantum mechanics; biomathematics biometrics; Bioinformatik; medicinsk informatik; biomatematik; Mathematical logic; set theory; combinatories; Matematisk logik; Mathematical and general theoretical physics; kombinatorik; mängdlära; classical mechanics; Bioinformatics; tissue simulations; transcription networks; random graphs; random maps; nested canalyzing; canalyzing; genetic regulation; Kauffman networks; random Boolean networks; statistical physics; thermodynamics; medical informatics; Matematisk och allmän teoretisk fysik; klassisk mekanik; kvantmekanik; relativitet; termodynamik; statistisk fysik;

    Sammanfattning : There are many examples of complex networks in science. It can be genetic regulation in living cells, computers on the Internet, or social and economic networks. In this context, Boolean networks provide simplistic models that are relatively easy to handle using computer simulations and mathematical methods. LÄS MER

  7. 5. Nitric Oxide Synthase in Pancreatic Islets During Trauma and Parenteral Feeding

    Författare :Saleem Qader; Islet cell physiology; []
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Surgery; orthopaedics; traumatology; Kirurgi; ortopedi; traumatologi; Gastroenterologi; Gastro-enterology; Pancreatitis; Ghrelin; TPN; cNOS; iNOS; PACAP; VIP; cAMP; Pancreatic islets; Insulin secretion;

    Sammanfattning : The influence of trauma (acute pancreatitis) or total parenteral nutrition (TPN) on pancreatic islet hormone secretion in relation to islet expression of inducible nitric oxide synthase (iNOS) was investigated. Acute pancreatitis resulted in an impaired glucose-stimulated insulin secretion (GSIS) which was found to be parallelled by a marked expression of iNOS and an exaggerated NO production in the pancreatic islets. LÄS MER