dinnu kumar

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Chemists Expand Nature's Genetic Alphabet

For the first time, scientists have expanded life's genetic alphabet, by inserting two unnatural, man-made "letters" into a bacterium's DNA, and by showing that the cell's machinery can copy them.<p>The advance means that scientists have a new tool for exploring how life encodes information, which …

I had my DNA analyzed, and all I got was this lousy story

With too much to account for, direct-to-consumer genetics isn't ready for prime time.<p>It’s a situation many have faced before or will in the future: …

Do You Know Where Your Aquarium Fish Come From?

Tracking the species caught for the unevenly regulated aquarium trade is a complicated task.<p>Watching flamboyantly colored fish flit about a saltwater aquarium can be relaxing. Figuring out where they came from, and whether they were caught in a sustainable manner, can be an exercise in …

Hints To Longevity Found In Blood Of 115-Year-Old Woman

She maintained clear cognition until near the end of her life.<p>Born in 1890, Hendrikje van Andel-Schipper died at the age of 115 in 2005, leaving her body to science. Until very close to her death, she remained in relatively good health and cognition, and was for example able to carry on a …

Here's What Happens When An Amoeba 'Eats' The Brain

Last week, nine-year-old Hally Yust died after contracting a rare brain-eating amoeba infection while swimming near her family’s home in Kansas.<p>The organism responsible, <i>Naegleria fowleri,</i> dwells in warm freshwater lakes and rivers and usually targets children and young adults. Once in the brain it …

8 Ways to Reduce Noise in Your Photographs

You have plenty of options to choose from when you want to reduce the noise in your images. However, you first need to understand why noise actually …