Biodiversity worsens all over the world, in urgency to cope with

An intergovernmental ecological body said on Friday that the biodiversity, the essential variety of life forms on Earth, continued to decline in every region of the world, significantly reducing nature’s capacity to contribute to people’s well-being. Those alarming trends are endangering economies, livelihoods, food security and the quality of life of people everywhere, according to…

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March For Our Lives: Huge gun-control rallies sweep US

Hundreds of thousands of protesters have taken to the streets across the US to call for tighter gun control. The March For Our Lives movement arose after 17 deaths in a school shooting in Parkland, Florida, last month. Student leader and Parkland survivor Emma Gonzalez gave a powerful speech at the main Washington DC event.…

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Deoxyribonucleoside triphosphates (dNTPs)

Dissolve each dNTP in distilled water at an approximate concentration of 100 mM. Adjust to pH 7.0 with 0.05 M Tris base using a micropipette (use pH paper to check the pH). Dilute an aliquot of the neutralized dNTP appropriately, and read the optical density at the wavelengths given in the table below. Base                    Wavelength                          Extinction coefficient…

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