Why BJP has not built bigger statue for Mahatma Gandhi: Shashi Tharoor

Jaipur, Jun 8: An inquiry has been initiated against staff of a private hospital in Rajasthan's Churu district after receiving screenshots of a purported WhatsApp chat in which they allegedly discussed about not attending to Muslim patients affected by COVID-19, police said on Sunday.

Screenshots of the chat between the hospital staff had gone viral following which an investigation has been initiated, they said.

Dr Sunil Choudhary, who runs the Srichand Baradiya Rog Nidan Kendra in Sardarshahar and whose staff purportedly wrote the messages, apologised through a Facebook post, saying the hospital staff did not have any intention to hurt any religious groups.

"We have received a complaint following which we are taking action to register FIR in the matter," Churu Superintendent of Police Tejaswini Gautam said.

Sardarshahar police station SHO Mahendra Dutt Sharma said the police control room had received a complaint regarding screenshots of the chat being circulated on social media. "We are inquiring into the matter. An FIR will be registered against the names mentioned in the WhatsApp chat," Sharma said.

New Delhi, Mar 2: The Supreme Court on Monday dismissed a curative petition filed by convict Pawan Kumar Gupta who was sentenced to death in the 2012 Nirbhaya gang rape and murder case.

A five-judge bench headed by Justice N V Ramana said that no case is made out for re-examining the conviction and the punishment of the convict.

Other members of the bench were justices Arun Mishra, R F Nariman, R Banumathi and Ashok Bhushan.

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.