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Why India Needs to Incentivize Water Reuse

While treated wastewater in India is often discharged into water bodies or used for non-essential purposes such as irrigating public parks, its reuse for more critical applications remains relatively uncommon. With depleting freshwater sources, erratic rainfall patterns, and growing water scarcity, it is imperative that India adapt innovative water management solutions. Data from the Central […]

environment variable not read in sed

I am trying to update sudoers via script and passing the value of $HOSTNAME and it’s not working..obviously missing something. I am expecting: %[email protected] ALL=(ALL:ALL) ALL %[email protected] ALL=(ALL:ALL) ALL Below are the many attempts and results: sed -i “/#My Customization.*/a%[email protected] ALL=(ALL:ALL) ALL\n””%”${HOSTNAME}”[email protected] ALL=(ALL:ALL) ALL” /tmp/sudoers.bak1 Returns: %[email protected] ALL=(ALL:ALL) ALL %[email protected] ALL=(ALL:ALL) ALL sed -i “/#My […]

How Cells Resist the Pressure of the Deep Sea

To study the cell membranes of deep-sea animals, the biochemist Itay Budin (center) joined forces with marine biologists Steve Haddock (right) and Jacob Winnikoff (left). Photographs: From left: Tamrynn Clegg; Geoffroy Tobe; John Lee “They are looking into an area that, to a large degree, has not been explored,” said Sol Gruner, who researches molecular […]

Dolphins Are Exhaling Microplastics

In fact, bubble bursts caused by wave energy can release 100,000 metric tons of microplastics into the atmosphere each year. Since dolphins and other marine mammals breathe at the water’s surface, they may be especially vulnerable to exposure. Where there are more people, there is usually more plastic. But for the tiny plastic particles floating […]

‘Humanity would watch helplessly as space junk multiplies uncontrollably’: has the number of satellite launches reached a tipping point?

“Since the start of the space age, we’ve had a throwaway culture – a bit like plastics in the ocean,” says Nick Shave, managing director of Astroscale UK, an in-orbit servicing company headquartered in Japan. Getting a satellite into orbit around the Earth used to be a big deal. From the launch of the first, […]