Essays about: "In-sample analysis"

Showing result 21 - 25 of 41 essays containing the words In-sample analysis.

  1. 21. Conditioning of chromatographic systems prior to metabolomic studies : Investigation of the conditioning effect and the possibility to alter it

    University essay from Uppsala universitet/Avdelningen för analytisk farmaceutisk kemi

    Author : Jasmin Telo; [2017]
    Keywords : Analytical chemistry; metabolomics; metabonomics; conditioning; conditioning effect; UPLC; Q-TOF; HILIC; Protein precipitation; Liquid-liquid extraction;

    Abstract : The conditioning effect in metabolomic studies is the phenomenon of initial variation of analytical results in the first 5-10 injections of a biological sample in chromatographic systems. The deviation manifests itself as a drift in retention time, peak area and in multivariate analysis. READ MORE

  3. 22. Influence of Sample Preparation on Portable XRF-analyses of Aeolian Sediments: a Case Study

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Markus L. Fiola; [2017]
    Keywords : portable XRF; loess; sediment; bärbar XRF; lössjord; sediment;

    Abstract : The geochemical composition of aeolian sediments like windblown dust particles is of major importance for the exploration of dust origin and weathering conditions. This allows for the reconstruction of dust transport pathways and thus wind directions and palaeoclimate conditions. READ MORE

  4. 23. Unlocking the Proteome of Archival Tissue Collections : Proteomic Analysis of Urinary Bladder Cancer Tissues using Mass Spectrometry-based Proteomics

    University essay from Uppsala universitet/Analytisk kemi

    Author : Aleš Holfeld; [2017]
    Keywords : ;

    Abstract : Formalin-fixed and paraffin-embedded (FFPE) and optimal cutting temperature (OCT)-embedded frozen tissue samples have recently gained interest as they exist in vast repositories worldwide and represent a valuable resource for clinical studies. However, unlocking the proteome of these archival tissues has encountered many challenges. READ MORE

  5. 24. Performance of alternative option pricing models during spikes in the FTSE 100 volatility index : Empirical evidence from FTSE100 index options 

    University essay from Linköpings universitet/Institutionen för ekonomisk och industriell utveckling

    Author : Nicklas Rehnby; [2017]
    Keywords : option pricing; stochastic volatility; implied volatility; GARCH; risk-neutral; characteristic functions; Gauss-Laguerre quadrature; Nelder-Mead search algorithm;

    Abstract : Derivatives have a large and significant role on the financial markets today and the popularity of options has increased. This has also increased the demand of finding a suitable option pricing model, since the ground-breaking model developed by Black & Scholes (1973) have poor pricing performance. READ MORE

  6. 25. Nonlinearity In Exchange Rates : Evidence From African Economies

    University essay from Uppsala universitet/Statistiska institutionen

    Author : Ndey Isatou Jobe; [2016]
    Keywords : Nominal Exchange Rates; Linear Models; Random Walk Model; Smooth Transition Autoregressive Model; Linearity Tests; Unit Root Tests; Forecast Evaluation.;

    Abstract : In an effort to assess the predictive ability of exchange rate models when data on African countries is sampled, this paper studies nonlinear modelling and prediction of the nominal exchange rate series of the United States dollar to currencies of thirty-eight African states using the smooth transition autoregressive (STAR) model. A three step analysis is undertaken. READ MORE