‘Sardar Patel’s order banning RSS should be displayed at 'Statue of Unity'’

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.

New Delhi, Jun 9: BJP leader Jyotiraditya Scindia and his mother Madhavi Raje Scindia have tested positive for COVID-19 and are currently undergoing treatment in a Delhi hospital, India Today reported on Tuesday.

They were admitted on Monday to Max Super Specialty Hospital, Saket, after the two complained of throat irritation and fever.

"Not so good news: @JM_Scindia and his mother have tested positive for corona, The former Cong turned BJP leader from MP has been admitted to hospital.. Wish him a speedy recovery!" tweeted Rajdeep Sardesai, consulting editor at the India Today group.

Breaking now: Not so good news: @JM_Scindia and his mother have tested positive for corona, The former Cong turned BJP leader from MP has been admitted to hospital.. Wish him a speedy recovery!  @IndiaToday

— Rajdeep Sardesai (@sardesairajdeep) June 9, 2020

Scindia, former Congress MP from Guna constituency in Madhya Pradesh, quit the party and joined BJP last March. Scindia, who was once Minister of State with independent charge for Power, is the BJP candidate for the upcoming Rajya Sabha elections from Madhya Pradesh.

Kanpur, Jan 18: Kanpur has witnessed an Unnao-like incident as the out on bail accused in rape case attack the family members of the victim. The mother of the victim, who later died in the hospital, was brutally attacked by the accused. The accused reportedly attacked the victim's mother and her aunt on January 8.

The actual rape case goes back to 2018 when a group of men abducted a minor girl from her own society. The accused had reportedly raped her and also beaten up her mother.

A video of mother being beaten up reportedly went viral soon after.

The mother of the victim had reportedly filed a complaint against one of the accused for abducting and molesting her daughter two years ago at a tannery falling under jurisdiction of Chakeri police station. The main accused along with five others was booked under section 354 of the IPC (sexual assault of children) and sent to jail. Around two weeks ago, the accused got bail and on January 9 they attacked the deceased and her sister.