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Minerva Biolabs GmbH, Germany

Minerva Biolabs GmbH is a leading biotechnology company for the development and marketing of detection & elimination kits for the control of microbial contamination. The company is based in Berlin. Our core competence lies in the control of mycoplasma, bacteria and viruses in cell cultures and bioph more

dichrom GmbH, Germany

dichrom - formerly SeQuant GmbH – is concentrating on the distribution and support of high quality products for liquid chromatography synthesis and isolation. The personal and individual customer support is of substantial importance for dichrom. Here a competent and comprehensive product and applica more

Catalogs Standards

Analytical UHPLC, GPC and HPLC Columns, Preparative Columns and Chromatography Media

The free catalogue offers a comprehensive overview of columns and media with a focus on analysis and purification of biomolecules more

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Publications Standards

  • Random number generators go public

    On 10 July, researchers in Chile will unveil an online public random number service. Later in July, the U.S. National Institute of Standards and Technology (NIST) will launch its Randomness Beacon as a permanent service, upgrading a pilot program that began in 2013. Brazil, too, is planning a beacon more

  • Prevalence-induced concept change in human judgment

    Do we think that a problem persists even when it has become less frequent? Levari et al. show experimentally that when the “signal” a person is searching for becomes rare, the person naturally responds by broadening his or her definition of the signal—and therefore continues to find it even when it more

  • Toward a sustainable materials system

    Global annual resource use reached nearly 90 billion metric tons in 2017 and may more than double by 2050. This growth is coupled with a shift of materials extraction from Europe and North America to Asia. In 2017, 60% of all materials were extracted in Asia, and extraction is expected to rise subst more

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Definition

McFarland standards

McFarland standards In microbiology , McFarland standards are used as a reference to adjust the turbidity of bacteria l suspensions so that the number of bacteria will be within a given range. Original McFarland standards were made by mixing s ... more

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