Sökning: "abundance"

Visar resultat 1 - 5 av 736 avhandlingar innehållade ordet abundance.

  1. 1. Scarcity, Abundance and Sufficiency: Contributions to Social and Economic Theory

    Författare :Adel Daoud; Göteborgs universitet.; Gothenburg University.; [2011]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; economics; sociology; scarcity; abundance; sufficiency;

    Sammanfattning : Economic sociology has established itself as a strong and vibrant field in the social sciences. A number of significant studies have been conducted on the relation between the economy and society: on firms, markets, networks, money, and general action theory. But little has been done on the issues of scarcity, abundance, and sufficiency (SAS). LÄS MER

  2. 2. Överflöd och ofullbordan. Essä om det moderna

    Detta är en avhandling från Coyote Förlag, Magnus Stenbocksgatan 5, SE-22224 LUND, Sweden

    Författare :Bo Isenberg; [2001]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; abstraction; abundance; classical modernity; contingency; crisis; modernity; oblivion; postmodernity; the principle of insufficient reason; religion; society; sociology; structivity; Sociology; tradition; cultural sociology; historical anthropology; Sociologi; Cultural anthropology; ethnology; Kulturantropologi; etnologi;

    Sammanfattning : The problem which the present study discusses is modernity. The study interprets modernity’s cultural and anthropological dispositions as historical appearances. Consequently, it is situated at the intersection of cultural sociology and historical anthropology. The aim is to generate insight and understanding rather than a coherent theory. LÄS MER

  3. 3. Organic Phosphorus Compounds in Aquatic Sediments Analysis, Abundance and Effects

    Detta är en avhandling från Uppsala : Acta Universitatis Upsaliensis

    Författare :Joakim Ahlgren; Emil Rydin; Monica Waldebäck; Lars Tranvik; Karin Markides; Sven Blomqvist; [2006]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; Organic phosphorus; aquatic sediment; eutrophication; NMR; internal loading; sample preparation; extraction; degradation; Miljökemi; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi;

    Sammanfattning : Phosphorus (P) is often the limiting nutrient in lacustrine and brackish eco-systems, and enhanced input of P into an aquatic system might therefore negatively impact the environment. Because modern waste water manage-ment have reduced external P input to surface waters, internal P loading from the sediment has become one of the main P sources to aquatic ecosys-tems, in which relatively unknown organic P compounds seem to be more active in P recycling than previously thought. LÄS MER

  4. 4. Studies on Baltic Sea mysids

    Detta är en avhandling från Stockholm : Department of Systems Ecology, Stockholm University

    Författare :Martin Ogonowski; Sture Hansson; Jörgen Berge; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Mysids; hydroacoustics; Baltic Sea; abundance; stable isotopes; specific dynamic action SDA ; diel vertical migration; partial migration; trophic interactions; physiology; benthic-pelagic coupling; protein:DNA; C:N ratio; genetic structure; marin ekologi; Marine Ecology;

    Sammanfattning : Mysid shrimps (Mysidacea, Crustacea) are efficient zooplanktivores in both marine and freshwater systems as well as lipid rich prey for many species of fish.  Although some efforts have been made to study the role of mysids in the Baltic Sea, very few studies have been carried out in recent time and there are still knowledge gaps regarding various aspects of mysid ecology. LÄS MER

  5. 5. Climate Change, Dengue and Aedes Mosquitoes Past Trends and Future Scenarios

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Jing Liu-Helmersson; Joacim Rocklöv; Åke Brännström; Eduardo Massad; Richard Paul; [2018]
    Nyckelord :MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; dengue; mathematical modelling; vectorial capacity; DTR; Aedes aegypti; Aedes albopictus; climate change; Europe; vector invasion; abundance; dengue; matematisk modellering; vektorkapacitet; DTR; Aedes aegypti; Aedes albopictus; klimatförändring; Europa; vektor invasion; Epidemiology; epidemiologi;

    Sammanfattning : Background Climate change, global travel and trade have facilitated the spread of Aedes mosquitoes and have consequently enabled the diseases they transmit (dengue fever, Chikungunya, Zika and yellow fever) to emerge and re-emerge in uninfected areas. Large dengue outbreaks occurred in Athens in 1927 and in Portuguese island, Madeira in 2012, but there are almost no recent reports of Aedes aegypti, the principal vector, in Europe. LÄS MER