According to a recent study, the sense of smell of humans has been gradually diminishing. In other words, the noses are becoming less sensitive with time. &nbsp;

The study has found two scent receptors for musk and body odour with mutations, which make scents less or more intense. &nbsp;

Sijia Wang of the Chinese Academy of Sciences and Joel Mainland of the Monell Chemical Senses Center have contributed to these findings. &nbsp;

Also Read |&nbsp;<a href="https://www.wionews.com/science/scientists-discover-a-way-to-target-destroy-cancer-cells-heres-how-the-ground-breaking-therapy-works-450088" hreflang="en">Scientists discover a way to target &amp; destroy cancer cells: Here's how the ground-breaking therapy works</a>

In this research, around 1,000 Han Chinese people were asked to rate the intensity and pleasantness of 10 odours on a 100-point scale. &nbsp; &nbsp;&nbsp;

The odours tested included galaxolide, a synthetic musk and 3M2H, which is one of about 120 chemicals that comprise body odour, but also carries the “characteristic scent” by itself. &nbsp; &nbsp; &nbsp;

Also Read |&nbsp;<a href="https://www.wionews.com/science/how-life-began-study-explains-how-a-moon-helps-create-life-on-a-planet-450068" hreflang="en">'How life began': Study explains how a moon helps create life on a planet</a>

The results of the study confirmed associations discovered earlier between the perception, including intensity, and genetic variants for specific odour receptors for three out of four of the scents. &nbsp;&nbsp;

For the first time, the scientists found genetic variants, which were linked to the perception of the musky scent of galaxolide and 3M2H, helping them to get identified by odour receptors of humans. &nbsp; &nbsp;&nbsp;

The findings of the research have been published in the journal Plos Genetics. &nbsp; &nbsp; &nbsp;

(With inputs from agencies)&nbsp;

According to a recent study, the sense of smell of humans has been gradually diminishing. In other words, the noses are becoming less sensitive with time. The study has found two scent receptors for musk and body odour with mutations, which make scents less or more intense.

According to a recent study, the sense of smell of humans has been gradually diminishing. In other words, the noses are becoming less sensitive with time. The study has found two scent receptors for musk and body odour with mutations, which make scents less or more intense. Sijia Wang of the Chinese Academy of Sciences and Joel Mainland of the Monell Chemical Senses Center have contributed to these findings. Also Read | Scientists discover a way to target & destroy cancer cells: Here's how the ground-breaking therapy works In this research, around 1,000 Han Chinese people were asked to rate the intensity and pleasantness of 10 odours on a 100-point scale. The odours tested included galaxolide, a synthetic musk and 3M2H, which is one of about 120 chemicals that comprise body odour, but also carries the “characteristic scent” by itself. Also Read | 'How life began': Study explains how a moon helps create life on a planet The results of the study confirmed associations discovered earlier between the perception, including intensity, and genetic variants for specific odour receptors for three out of four of the scents. For the first time, the scientists found genetic variants, which were linked to the perception of the musky scent of galaxolide and 3M2H, helping them to get identified by odour receptors of humans. The findings of the research have been published in the journal Plos Genetics. (With inputs from agencies)

In evolution, humans’ noses have become less sensitive, finds study

Baking summer heat has forced Rome to close some of their iconic drinking fountains known as &quot;big noses&quot;, or &quot;nasoni&quot;, that constantly gush fresh water on thousands of street corners, causing a public outcry. The fountains are as much a part of Rome as the Colosseum or the Tiber River.

Hit by the soaring temperatures drying out southern Europe, the Italian capital has started turning off up to 30 of the 2,800 distinctive curved metal taps every day, dismaying Romans and prompting concerns homeless people would become dehydrated. Fountains on tourist trails will be left open, the mayor said.

The Movimento 5 Stelle, or 5-star movement, is the acting ruling party in Rome, which advanced the proposal to make citizens pay for public water. Ironically they were the same party behind a massive referendum against water privatisation in Italy six years ago.

Shutting down some water fountains could benefit the agriculture sector. In Lazio (Rome&#39;s region) many farmers are forced to strictly manage their last water resources due to a water crisis.

Brandishing a plastic bottle in the central Piazza Venezia, city resident Carmelo Teti said,&quot;When I go around I fill up this bottle with water, because to buy mineral water costs and I cannot afford it.&quot;

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A woman cools off next to a fountain in Rome, Italy July 4, 2017. (Reuters)
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Romans&nbsp;say that the nasonis&nbsp;also benefit&nbsp;runners, tourists, poor people and animals.

In a letter to Rome&#39;s mayor, Virginia Raggi, water company Acea blamed the &quot;exceptional drought&quot; for the temporary measure and said: &quot;We are absolutely aware of the inconvenience that might be caused.&quot;

The company said it was committed to replacing and fixing the city&#39;s decayed and ruptured pipes, which according to consumer group Codacons leak 40 per cent of the water they carry.

Several consumers associations, like Codacons and Eco Italia Solidale, point&nbsp;out how the nasoni only account for one percent of Rome&#39;s water supply, but&nbsp;help&nbsp;in keeping sewers clean and watering plants in public places.

Part of the plan is also to help limit the amount of water taken from picturesque nearby Lake Bracciano, whose sinking surface level has prompted a local campaign to protect it.

The Committee for the Defence of Lake Bracciano was critical, saying: &quot;You won&#39;t save Lake Bracciano by leaving Rome&#39;s homeless thirsty,&quot; echoing a warning from the Red Cross.

(With agency inputs)

&nbsp;

Summer heat has caused Rome to each day close 30 of the iconic fountains that constantly gush water, causing a public outcry

Baking summer heat has forced Rome to close some of their iconic drinking fountains known as "big noses", or "nasoni", that constantly gush fresh water on thousands of street corners, causing a public outcry. The fountains are as much a part of Rome as the Colosseum or the Tiber River. Hit by the soaring temperatures drying out southern Europe, the Italian capital has started turning off up to 30 of the 2,800 distinctive curved metal taps every day, dismaying Romans and prompting concerns homeless people would become dehydrated. Fountains on tourist trails will be left open, the mayor said. The Movimento 5 Stelle, or 5-star movement, is the acting ruling party in Rome, which advanced the proposal to make citizens pay for public water. Ironically they were the same party behind a massive referendum against water privatisation in Italy six years ago. Shutting down some water fountains could benefit the agriculture sector. In Lazio (Rome's region) many farmers are forced to strictly manage their last water resources due to a water crisis. Brandishing a plastic bottle in the central Piazza Venezia, city resident Carmelo Teti said,"When I go around I fill up this bottle with water, because to buy mineral water costs and I cannot afford it." A woman cools off next to a fountain in Rome, Italy July 4, 2017. (Reuters) × Romans say that the nasonis also benefit runners, tourists, poor people and animals. In a letter to Rome's mayor, Virginia Raggi, water company Acea blamed the "exceptional drought" for the temporary measure and said: "We are absolutely aware of the inconvenience that might be caused." The company said it was committed to replacing and fixing the city's decayed and ruptured pipes, which according to consumer group Codacons leak 40 per cent of the water they carry. Several consumers associations, like Codacons and Eco Italia Solidale, point out how the nasoni only account for one percent of Rome's water supply, but help in keeping sewers clean and watering plants in public places. Part of the plan is also to help limit the amount of water taken from picturesque nearby Lake Bracciano, whose sinking surface level has prompted a local campaign to protect it. The Committee for the Defence of Lake Bracciano was critical, saying: "You won't save Lake Bracciano by leaving Rome's homeless thirsty," echoing a warning from the Red Cross. (With agency inputs)

War of the 'noses': Are Rome's eternal drinking fountains running dry?

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