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Product Certification Standards Organization CSA Group

CSA Group provides product certification and product testing services to Canada, the U.S, Europe, and worldwide. As a leading standards organization with over 100 years of expertise, we are the trusted product certification experts. If youre looking to have an impact on future standards, we have opportunities to get involved.

Structural basis for human coronavirus attachment to

Jun 03, 2019 Supplementary Figure 1CryoEM analysis of apo and holo HCoV OC43 S glycoprotein.a, c, Representative electron micrographs (defocus1.4 m and 1.2 µm) and class averages of apo (a) and holo (c) HCoV OC43 S trimer embedded in vitreous ice.Scale bars100 nm (micrograph) and 200 nm Å (class averages). b, d Gold standard (blue) and model/map (red) Fourier shell correlation curves.

Novel inter crystal scattering event identification method

Positron emission tomography (PET) is an essential imaging device which provides diagnostic information in a wide range of disease states (Phelps 2000, Kim 2016, Ahn 2017).PET provides tomographic images by detecting a pair of 511 keV annihilation gamma rays generated from the radiopharmaceuticals distributed in a patient's body.