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  • Cornell: Project aims to sequence 2,500 genomes

    Cornell researchers are part of an international collaboration to build the most detailed map of human genetic variation. The map promises to provide a much more comprehensive understanding of the role of inherited DNA variation in human history, evolution and disease and the best methods to use to more

  • Pivoting hooks of graphene's chemical cousin could revolutionize work of electron microscopes

    The single layer material Graphene was the subject of a Nobel prize this year but research led by a team of researchers at the University of Warwick has found molecular hooks on the surface of its close chemical cousin, Graphene Oxide, that will potentially provide massive benefits to researchers us more

  • Fuel cells in operation: A closer look

    Measuring a fuel cell's overall performance is relatively easy, but measuring its components individually as they work together is a challenge. That's because one of the best experimental techniques for investigating the details of an electrochemical device while it's operating is x-ray photoelectro more

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  • cDNA Synthesis with the Transcriptor First Strand cDNA Synthesis Kit from Formalin-Fixed Paraffin-Embedded Tissue (FFPET) Samples

    Partial degradation of RNA is a common problem when working with FFPET samples. Semi-­quantitative RT-PCR assays amplifying the 5´- and 3´-end sequences of the housekeeping gene b-actin present a solution: calculating the ratio of the 3´- to 5´-amplicon allows ­assessment of RNA integrity. An important step for reproducible quantification is the reverse ­transcription reaction. The ­applicability of the new Transcriptor First Strand cDNA Synthesis Kit to partially degraded FFPET RNA was evaluated. The new kit is compared with the widely used First Strand cDNA Synthesis Kit for RT-PCR (AMV). Under modified reaction ­conditions (temperature, time) the kit reversely transcribes the FFPET samples with high ­efficiency. more

  • Making the connection - particle size, size distribution and rheology

    A number of factors influence the rheology of a suspension, including particle size, particle size distribution, and the volume fraction of solids present. Here we examine the relationship between rheology and particle size parameters. Commonly used rheological terms are described and we present data from example systems to illustrate key points more

  • The Determination of Hazardous Substances According to RoHS and WEEE Directives

    1st July 2006 is an important deadline for the electro- and electronics industries. This date bans hazardous substances like lead, cadmium, mercury, hexavalent chromium and polybrominated biphenyls and diphenyl ethers from electro- and electronic equipment. This restriction, even though in discussion since 1991, has become more and more important from year to year because of tons of electronic waste releasing toxic substances which are accumulated in the environment, the food chain and all human beings. In order to enforce the substances ban and the limitation or substitution of hazardous components, elemental analysis is obviously the most important control measure for monitoring limiting values. This requires precise analytical systems such as X-ray fluorescence, ICP- and atomic absorption spectrometers. These instruments are able to detect trace concentrations of hazardous compounds - for example cadmium, using an atomic absorption spectrometer in the flame atomization mode up to 0.1 mg/L, or using the di more

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LNA™ for microRNA research - Exiqon

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