Avancerad sökning

Hittade 3 avhandlingar som matchar ovanstående sökkriterier.

  1. 1. Carbon Dioxide in Inland Waters : Drivers and Mechanisms Across Spatial and Temporal Scales

    Författare :Anna Cecilia Nydahl; Gesa A. Weyhenmeyer; Marguerite Xenopoulos; Uppsala universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; carbon dioxide; dissolved organic carbon; inland water; lake; stream; groundwater; mesocosm; carbonate system; carbon; Biology with specialization in Limnology; Biologi med inriktning mot limnologi;

    Sammanfattning : Inland waters are an essential component of the global carbon cycle as they are very active sites for carbon transformation processes. Much of this carbon is transformed into the greenhouse gas carbon dioxide (CO2) and emitted into the atmosphere. LÄS MER

  3. 2. Coastal microbial respiration in a climate change perspective

    Författare :Anna Nydahl; Johan Wikner; Kristina Sundbäck; Umeå universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; biology; biologi;

    Sammanfattning : In a climate change perspective increased precipitation and temperature are expected which should influence the coastal microbial food web. Precipitation will have a strong impact on river flow and thereby increase the carbon input to the coastal zone as well as lowering the marine salinity by dilution with freshwater. LÄS MER

  4. 3. Consuming and Communicating Fruit and Vegetables : A Nation-Wide Food Survey and Analysis of Blogs among Swedish Adults

    Författare :Anna-Mari Simunaniemi; Margaretha Nydahl; Agneta Andersson; Helena Sandberg; Liisa Valsta; Uppsala universitet; []
    Nyckelord :fruit and vegetables; 24-h recall; food frequency questionnaire; discourse analysis; cluster analysis; communication; blogs; Culinary Arts and Meal Science; Måltidskunskap; Kostvetenskap; Food; Nutrition and Dietetics;

    Sammanfattning : The aim of this thesis was to investigate fruit and vegetable (F&V) consumption among Swedish adults and to use F&V-related perceptions for audience segmentation. Further, the aim was to identify motives and approaches of F&V bloggers, as well as to analyze F&V-related online discourses. LÄS MER