Sökning: "time trend"

Visar resultat 1 - 5 av 554 avhandlingar innehållade orden time trend.

  1. 1. Återbesök i Eskilstuna : En undersökning av morfologisk variation och förändring i nutida talspråk

    Detta är en avhandling från Uppsala : Institutionen för nordiska språk

    Författare :Eva Sundgren; Uppsala universitet.; [2002]
    Nyckelord :HUMANIORA; HUMANITIES; HUMANITIES and RELIGION Languages and linguistics; HUMANIORA och RELIGIONSVETENSKAP Språkvetenskap; sociolinguistic variation; langugage change; spoken Swedish; Eskilstuna; morphology; real time; apparent time; panel study; trend study; individual change; generational change; intralinguistic constraints; salience; quantitative analysis; implicational scaling; local integration; social mobility; HUMANITIES and RELIGION Languages and linguistics Scandinavian languages; HUMANIORA och RELIGIONSVETENSKAP Språkvetenskap Nordiska språk; nordiska språk; Scandinavian Languages; Scandinavian languages - general; Sociolinguistic variation; language change; Nordiska språk - allmänt;

    Sammanfattning : Real-time replications of empirical studies of language use are scarce. This study of language change in real time replicates an investigation of the social variation of spoken Swedish in the medium-sized town of Eskilstuna, using data collected 29 years after the original study. LÄS MER

  2. 2. Validation and time series analysis of global stratospheric data sets

    Detta är en avhandling från Uppsala : Institutionen för nordiska språk

    Författare :Ashley Jones; [2009]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; OSIRIS; MIPAS; remote sensing; data assimilation; Trend; stratosphere; ozone; linear regression; Odin; validation;

    Sammanfattning : The depletion of ozone from the stratosphere and the impact of global warming have been identified as phenomena caused as a result of anthropogenic activity. Scientists are thus trying to find quicker and more reliable ways to analyse these environmental problems. LÄS MER

  3. 3. On the returns of trend-following trading strategies

    Detta är en avhandling från Umeå : Umeå universitet

    Författare :Christian Lundström; Umeå universitet.; [2017]
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Bootstrap; Commodity Trading Advisor funds; Contraction-Expansion principle; Crude oil futures; Futures trading; Opening Range Breakout strategies; S P 500 futures; Technical analysis; Time series momentum; Time-varying market inefficiency; nationalekonomi; Economics;

    Sammanfattning : Paper [I] tests the success rate of trades and the returns of the Opening Range Breakout (ORB) strategy. A trader that trades on the ORB strategy seeks to identify large intraday price movements and trades only when the price moves beyond some predetermined threshold. LÄS MER

  4. 4. Confronting new challenges in chemical assessment : emerging contaminants and climate change

    Detta är en avhandling från Stockholm : Department of Applied Environmental Science (ITM), Stockholm Univeristy

    Författare :Deguo Kong; Stockholms universitet.; [2013]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; emerging chemicals; climate change; fate; multimedia model; risk assessment; physical-chemical property; uncertainty; Arctic; Baltic; time series; persistent organic pollutants; temporal trend; Applied Environmental Science; tillämpad miljövetenskap;

    Sammanfattning : Both chemical-specific (e.g. physical-chemical properties) and environmental (e.g. LÄS MER

  5. 5. Analysis of Perfluoroalkyl Acids in Swedish Biota  : Temporal trends, tissue distribution and toxicity

    Detta är en avhandling från Stockholm : Department of Applied Environmental Science (ITM), Stockholm University

    Författare :Katrin Holmström; Stockholms universitet.; [2010]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Environmental chemistry; PFOS; PFAS; pollutant; Baltic guillemot; peregrine falcon; Monoporeia affinis; time trend; toxicity; NATURAL SCIENCES Chemistry Environmental chemistry; NATURVETENSKAP Kemi Miljökemi; NATURAL SCIENCES Chemistry Environmental chemistry Persistent organic compounds; NATURVETENSKAP Kemi Miljökemi Persistenta organiska föreningar; tillämpad miljövetenskap; Applied Environmental Science;

    Sammanfattning : Perfluorinated alkyl acids (PFAS) are ubiquitous environmental contaminants. They are found in high concentrations in top predators worldwide, with perfluorooctane sulfonate (PFOS) as the predominant compound. LÄS MER