Sökning: "consumption rate"

Visar resultat 1 - 5 av 571 avhandlingar innehållade orden consumption rate.

  1. 1. The heart rate method for estimating oxygen uptake in walking and cycle commuting : Evaluations based on reproducibility and validity studies of the heart rate method and a portable metabolic system

    Författare :Jane Salier Eriksson; Peter Schantz; Hans Rosdahl; Jostein Hallén; Gymnastik- och idrottshögskolan; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Heart rate; Oxygen consumption; Validity; Reproducibility; Oxycon Mobile; Douglas Bag Method; Cycle commuting; Walking commuting; Medicin Teknik; Medicine Technology;

    Sammanfattning : Walking and cycling to work can contribute to population health, but more objective knowledge concerning exercise intensities, oxygen uptake and the metabolic demands of this physical activity is needed for this and other evaluations. To attain this, valid and reliable instruments are a requirement. LÄS MER

  3. 2. Foraging behaviour in piscivorous fish: mechanisms and patterns

    Författare :Håkan Turesson; Biologiska institutionen; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; aquatic ecology; limnology; Marinbiologi; limnologi; akvatisk ekologi; marine biology; Hydrobiology; piscivory; consumption rate; confusion effect; capture success; predation; encounter rate; prey choice;

    Sammanfattning : Mechanistic understanding of piscivore foraging at the individual level is important in order to understand and make predictions of piscivore effects at population and community levels. To understand the mechanisms affecting selection and consumption rates each step in the foraging cycle (search, encounter, active choice, attack, capture, ingestion, digestion) should be studied. LÄS MER

  4. 3. Essays on Shocks, Welfare, and Poverty Dynamics: Microeconometric Evidence from Ethiopia

    Författare :Yonas Alem; Göteborgs universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; urban Ethiopia; poverty dynamics; dynamic probit; hazard rate; labor market status; subjective well-being; policymakers; life satisfaction; environment; Ethiopia; food price; consumer demand; fertilizer use; rainfall; highlands of Ethiopia; panel data; consumption; welfare; food price shock; Africa;

    Sammanfattning : Five self-contained papers constitute this thesis. Paper 1: Does fertilizer use respond to rainfall variability? Panel data evidence from urban Ethiopia In this article, we use farmers’ actual experiences with changes in rainfall levels and their responses to these changes to assess whether patterns of fertilizer use are responsive to changes in rainfall patterns. LÄS MER

  5. 4. Consumption and loss of commercial stabilisers in polyethylene exposed to different natural environments

    Författare :Nadejzda Haider; KTH; []
    Nyckelord :LDPE; MDPE; ultrasonic extraction; polymer additives; stabilisers; antioxidants; HALS; Irganox 1010; Irgafos 168; migration; consumption; GC-MS; additive degradation products;

    Sammanfattning : A procedure for the extraction and analysis of commercialstabilisers in low density and medium density polyethylene(LDPE and MDPE) films was developed and used to study theconsumption of stabilisers in polymers exposed to differentnatural environments. An ultrasonic technique was applied toextract HALS-3 (Chimassorb 944) from LDPE film and antioxidants(Irganox 1010 and Irgafos 168) from MDPE film. LÄS MER

  7. 5. On Money and Consumption

    Författare :Erik Öberg; Per Krusell; Marco Bassetto; Stockholms universitet; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Economics; nationalekonomi;

    Sammanfattning : Price Level Determination When Tax Payments Are Required in Money. We formalize the idea that the price level can be determined by a requirement that taxes be paid in money. LÄS MER