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Holding your breath can increase your chances of catching COVID-19: Study

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It was found that the deposition is inversely proportional to the aspect ratio of capillaries which suggests that droplets are likely to deposit in longer bronchioles.

So, the transportation of the virus-laden droplets deep into the lungs increases with a decreased breathing frequency. This is because low breathing increases the time of residence of the virus, therefore increasing the chances of the infection.

The study was led by Professor Mahesh Panchagnula Department of Applied Mechanics, IIT Madras and his two other scholars.

According to Panchagnula, “Our lungs have a branched structure, it has bronchioles that are dichotomously branched. This means each bronchiole branches into two and these go on for 23 generations. The deeper generations, 17 to 23, is where the aerosols meet the blood.”

The findings of this study were published in the international journal ‘Physics of Fluids’.

“Covid-19 has opened a gap in our understanding of deep pulmonological systemic diseases. Our study unravels the mystery behind how particles are transported and deposited in the deep lung. The study demonstrates the physical process by which aerosol particles are transported into the deep generations of the lung,” said Panchagnula, while elaborating on the need for such research.


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India Republic Day 2021: Parade, Flag hoisting time, celebration and all you need to know

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India will be celebrating its 72nd Republic Day this year. It is celebrated all across India with lots of patriotism and fervor. Magnificent parades by regiments of the Indian army, navy, the air force, police, and the paramilitary forces will be witnessed at Rajpath, Delhi. India’s defensive prowess will be on display too, with the latest missiles, aircraft, and weapon systems. Beautiful tableaus representing the uniqueness of all the states of India are also showcased during the parade. The celebration usually ends with numerous air shows and flypasts by the Indian forces.

This year, for the first time in 50 years, there will be no chief guest at the Republic Day parade. Also, a number of changes will be introduced. There will be smaller marching contingents, the distance for the parade will be shorter than usual and the number of people will be reduced to a minimum.

As per PTI, 25,000 spectators will be allowed to witness the celebrations as compared to a normal crowd of 1 lakh, and children below the age of 15 years are not allowed. This year, the size of the marching contingent will be also brought down to 96, which was 144 in the previous years. Also, each member of the contingent will wear a mask and will follow all the protocols laid down by the government.

The distance of the parade will be shorter than usual :

There will be a total of 32 tableaux wherein the Union Territory of Ladakh will be participating for the very first time. This year, Lieutenant Bhawana Kanth – part of IAF’s tableau – will be featuring a light combat aircraft, a light combat helicopter, and a Sukhoi fighter jet fitted with ‘made in India’ missiles. One of the major attractions will be the Rafale fighter jets doing a vertical Charlie at the end of the fly-past.

Security:

Delhi police will also look after the security for the event. 75 percent of the city police personnel will be on duty with heavy barricading at many intersections, checkpoints along with sniffer dogs, and metal detectors.
New additions:

This year, 122 soldiers of the Bangladesh Armed Forces will be taking part in the parade. And it will be the third time since independence that any foreign contingent will be part of the parade.

According to the government officials, this year, veterans’ parade by ex-servicemen and women is canceled as they are more susceptible to contract COVID-19.

New additions:

This year, 122 soldiers of the Bangladesh Armed Forces will be taking part in the parade. And it will be the third time since independence that any foreign contingent will be part of the parade.

Due to the ongoing farmers’ protest in Delhi against the new farm laws thousands of farmers are set to participate in a tractor rally. Over two lakh tractors are expected to take part in the parade and there will be around five routes. The tractor parade will only begin after 12 pm once the main parade is finished.


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Quick crossword No 15,825

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Cryptic crossword No 28,352

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