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Found 4 essays matching the above criteria.

  1. 1. Per- and polyfluoroalkyl substances (PFAS) and the effect on apoptosis in early porcine embryo development in vitro

    University essay from SLU/Dept. of Clinical Sciences

    Author : Anna Leclercq; [2021]
    Keywords : apoptosis; PFAS; PFOS; PFHxS; IVF; IVP; porcine; pig; embryo; TUNEL; reproduction;

    Abstract : The aim of this study was to evaluate the effects of PFHxS (perfluorohexane sulfonic acid) and PFOS (perfluorooctane sulfonic acid) on early embryo development parameters and apoptosis on day 6 post fertilization in porcine embryos. A second purpose was to evaluate, and establish, the TUNEL assay in our IVF laboratory. READ MORE

  3. 2. Ouabain Toxicity -Selectivity Towards Renal Cancer Cells

    University essay from KTH/Skolan för kemi, bioteknologi och hälsa (CBH)

    Author : Emma Magnusson; [2020]
    Keywords : Cardiotonic steroids; ouabain; Na K -ATPase; cytotoxicity; renal cancer; apoptosis; Kardiotoniska steroider; ouabain; Na K -ATPase; cytotoxicitet; njurcancer; apoptos;

    Abstract : Ouabain and other cardiotonic steroids are known to inhibit Na + ,K + -ATPase (NKA), theion pump responsible for the ionic gradient across the plasma membrane. These steroidsdisplay a selective toxicity towards several tumour cells in comparison to primary humancells, however, the mechanism behind this is not yet understood. READ MORE

  4. 3. Use of Gravity Sensors for Free Space Orientation

    University essay from KTH/Skolan för informations- och kommunikationsteknik (ICT)

    Author : Victor Garcia-Fernández; [2015]
    Keywords : Kalman; Particle filter; Fixed-point math; MSP430; Kalman; Partikelfilter; fast punkt matematik; MSP430.; Kalman; filtro de partículas; álgebra de punto fijo; MSP430;

    Abstract : This thesis deals with different approaches to filtering the signal output of a three axis accelerometerfor free space orientation, that is, finding the orientation of a sensor relative to gravity. Theplatform this orientation system is to be developed for is a low-power, high-efficiency fixed-pointmath microprocessor, therefore efficiency and mathematical operation precision are factors thatalso need to be taken into consideration in this work. READ MORE

  5. 4. Effect of insulin during oocyte maturation in vitro on bovine early embryo development : partially evaluated by novel fluorescent staining

    University essay from SLU/Dept. of Clinical Sciences

    Author : Ida Lindgren; [2014]
    Keywords : bovine; embryo development; IVF; oocyte maturation; ; insulin; metabolism; bovin; embryoutveckling; IVF; oocytmognad;

    Abstract : Fertility is of central interest in the dairy production but has during the last decades declined. Increased milk yield has resulted in high pressure on the metabolism of the dairy cows that are supposed to manage the transition from dry cows to lactating cows within a few weeks around the parturition. READ MORE