BJP leader arrested after 200 cows starve to death at his gaushala in Durg

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.

Mumbai, Mar 8: A day after the Enforcement Directorate registered a money laundering case against Yes Bank founder Rana Kapoor and raided his premises, he was taken to the agency's office in Mumbai on Saturday for further questioning.

Kapoor, who was grilled by central agency's officials on Friday night at his Samudra Mahal residence in Mumbai, was shifted to the ED office in the metropolis around 12.30 pm.

ED officials said Kapoor was questioned throughout the night, with some rest time.

A senior ED official connected with the probe told IANS: "Kapoor will be questioned about Yes Bank loans to Dewan Housing Finance Limited (DHFL)."

The official said that during searches a lot of incriminating documents were found and the agency wanted to grill him on his links with DHFL promoters and other companies.

Kapoor's alleged role in the disbursal of loan to a corporate entity and kickbacks reportedly received in his wife's bank account are also under probe.

The ED had filed the money laundering case against Kapoor and raided his residence, apart from issuing a look-out circular so that he does not flee the country.

The ED registered a money laundering case against Kapoor as a continuation of its probe against the DHFL wherein it was allegedly found that Rs 12,500 crore was diverted to 80 shell companies using one lakh fake borrowers. The transactions with these shell companies date back to 2015.

An ED official in New Delhi told IANS that the DHFL probe revealed that funds diverted by the DHFL originated from Yes Bank.

He said that the searches at Kapoor's residence on Friday night were meant to find out any irregularity in grant of loans to the DHFL by the Yes Bank.

The ED has accused Kapil and Dheeraj Wadhawan of DHFL of purchasing shares in five firms -- Faith Realtors, Marvel Township, Abe Realty, Poseidon Realty, and Random Realtors -- after which they were amalgamated with Sunblink.

The outstanding loans of these five firms, totalling around Rs 2,186 crore till July 2019, were allegedly appropriated onto the books of Sunblink to cover up the diversion of loans acquired from DHFL.

The ED's action comes after the RBI superseded Yes Bank Board for 30 days and appointed an administrator, putting a cap of Rs 50,000 on withdrawals by account holders for a month.

The RBI said that the bank's board was superseded "owing to serious deterioration in the financial position of the bank".

Former SBI CFO Prashant Kumar was appointed as administrator of Yes Bank, which has over 1,000 branches and 1,800-plus ATMs across the country.

On Thursday, Union Finance Minister Nirmala Sitharaman said that the bank was on watch since 2017 and developments relating to it were monitored on a day-to-day basis.

New Delhi, Jun 8: India on Monday reported the highest single-day spike of 9,983 more COVID-19 cases and 206 deaths in the last 24 hours.

With this, the country's coronavirus count has reached 2,56,611, including 1,25,381 active cases, according to the Ministry of Health and Family Welfare.

1,24,094 patients have been cured/discharged so far and 7,135 succumbed to the deadly virus. While one patient has migrated.

With 85,975 cases, Maharashtra is the worst-affected state in the country followed by Tamil Nadu at 31,667 cases.

A total of 1,08,048 samples were tested for coronavirus in the last 24 hours and overall 47,74,434 samples have been tested till now.