21 Italian tourists, 3 Indians quarantined at ITBP centre in Delhi

Lucknow, Jan 12: The controversy over renowned Pakistani poet Faiz Ahmad Faiz's iconic poem 'Hum dekhenge' may have caused an upheaval in the literary world but it has also helped in resurrecting the famous poet for the young generations.

Students and young professionals are making a beeline for books on Faiz, his biography and his poems and book sellers are ordering supplies of Faiz books.

"Earlier, we sold hardly one book in a month or on Faiz but after the controversy, people are curious to know more about the poet and his poems. We have placed orders for the entire literary range on Faiz Ahmad Faiz," said a leading book seller in Hazratganj in Lucknow.

The bookseller said that the highest demand was for books written in Devnagri script.

"Not many in the young generation can read or write Urdu so they prefer Devnagri," the book seller said.

In Kanpur, most of the leading bookshops have already run out of stocks and book stalls in the ongoing Handloom Expo are drawing huge crowds for Faiz books.

Suchita Srivastava, B.Ed student in Kanpur said, "I have never been fond of Urdu poetry because I do not understand much of the language but after the controversy, I want to read poems of Faiz to understand what he wanted to say. I am taking help of Google to understand difficult words in Urdu."

Krishna Rao, another student at the Chandra Shekhar Azad University of Agriculture and Technology, said that since books on Faiz had been sold out, he had ordered a Kindle edition and was reading them.

"Reading his poems actually widens one's perspective of things and becomes even more precious if you take into account the time and context in which they were written," he said.

London, May 20: The current physical distancing guidelines of 6 feet may be insufficient to prevent COVID-19 transmission, according to a study which says a mild cough in low wind speeds can propel saliva droplets by as much as 18 feet.

Researchers, including those from the University of Nicosia in Cyprus, said a good baseline for studying the airborne transmission of viruses, like the one behind the COVID-19 pandemic, is a deeper understanding of how particles travel through the air when people cough.

In the study, published in the journal Physics of Fluids, they said even with a slight breeze of about four kilometres per hour (kph), saliva travels 18 feet in 5 seconds.

"The droplet cloud will affect both adults and children of different heights," said study co-author Dimitris Drikakis from the University of Nicosia.

According to the scientists, shorter adults and children could be at higher risk if they are located within the trajectory of the saliva droplets.

They said saliva is a complex fluid, which travels suspended in a bulk of surrounding air released by a cough, adding that many factors affect how saliva droplets travel in the air.

These factors, the study noted, include the size and number of droplets, how they interact with one another and the surrounding air as they disperse and evaporate, how heat and mass are transferred, and the humidity and temperature of the surrounding air.

In the study, the scientists created a computer simulation to examine the state of every saliva droplet moving through the air in front of a coughing person.

The model considered the effects of humidity, dispersion force, interactions of molecules of saliva and air, and how the droplets change from liquid to vapour and evaporate, along with a grid representing the space in front of a coughing person.

Each grid, the scientists said, holds information about variables like pressure, fluid velocity, temperature, droplet mass, and droplet position.

The study analysed the fates of nearly 1,008 simulated saliva droplets, and solved as many as 3.7 million equations.

"The purpose of the mathematical modelling and simulation is to take into account all the real coupling or interaction mechanisms that may take place between the main bulk fluid flow and the saliva droplets, and between the saliva droplets themselves," explained Talib Dbouk, another co-author of the study.

However, the researchers added that further studies are needed to determine the effect of ground surface temperature on the behaviour of saliva in air.

They also believe that indoor environments, especially ones with air conditioning, may significantly affect the particle movement through air.

This work is important since it concerns safety distance guidelines, and advances the understanding of the transmission of airborne diseases, Drikakis said.

Jaipur, Mar 29: A batch of 275 Indians evacuated from coronavirus-hit Iran arrived at the Jodhpur airport on Sunday morning, an official said.

He said a preliminary screening of the passengers was conducted at the airport and thereafter, they were shifted to the Army Wellness Facility set up at the Jodhpur Military Station.

Additional Chief Secretary (Health) Rohit Kumar Singh said of the 275 passengers, there were 133 women and 142 men, including two infants and four children.