BJP mounts attack on Siddaramaiah, rakes up Hublot watch issue again

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, May 18: Very severe cyclonic storm ‘Amphan’, over central parts of South Bay of Bengal, has intensified into extremely severe cyclonic storm, the India Meteorological Department (IMD) said on Monday. The weather department has warned that ‘Amphan’ may turn into a “super cyclonic storm’.

According to experts, North Odisha coast will face the maximum impact of cyclone Amphan when it makes landfall.

“Wind speed expected to be 110-120 kmph, gusting up to 130 kmph. Balasore, Bhadrak, Jajpur, Mayurbhanj dist can be affected on 20 May (when it makes landfall), IMD Bhubaneswar scientist Umashankar Das told news agency ANI.

The IMD has said that ‘Amphan’ will cross West Bengal - Bangladesh coasts between Digha (WB) and Hatiya island - in the afternoon/evening of May 20 as very severe cyclonic storm.

Earlier, the IMD had warned that ‘Amphan’, over central parts of South Bay of Bengal, will intensify into an extremely severe cyclonic storm on Monday.

“Very Severe Cyclonic Storm (VSCS) ‘AMPHAN’ over central parts of South Bay of Bengal near latitude 12.5°N and longitude 86.4°E, about 870 km nearly south of Paradip (Odisha). To intensify further into an Extremely Severe Cyclonic Storm (ESCS) in the next six hours,” the IMD said in a tweet on Monday.

National Disaster Response Force (NDRF) has sent its 10 teams to Odisha and seven teams to West Bengal in view of the approaching Cyclone Amphan, news agency reported.

New Delhi, Mar 6: As panicky depositors rushed to withdraw money from Yes Bank whose control was seized by the RBI in a dramatic late-night move, Finance Minister Nirmala Sitharaman on Friday assured depositors that their money is safe and said the central bank was working for an early resolution of the crisis.

The Reserve Bank of India (RBI) on Thursday evening capped withdrawals at Rs 50,000 for the next one month and imposed strict limits on operations at the country's fourth-largest private lender that faced "regular outflow of liquidity" after an effort to raise new capital failed.

"I am in continuous interaction with the RBI. The RBI is fully seized of the matter and has assured they will give a quick resolution," Sitharaman said here.

She said no depositor will lose his or her money and insisted that the immediate priority is to ensure Yes Bank customers are able to withdraw money within the stipulated cap.

"I want to assure every depositor that their money shall be safe. Their monies are safe," she said. "I am constantly in contact with the RBI and the steps that are taken are taken in the interest of depositors, banks and economy. We are fully seized of the development."

She was talking to reporters after meeting State Bank of India (SBI) Chairman Rajnish Kumar. On Thursday, the SBI board gave its "in-principle" approval to exploring investment opportunities in Yes Bank.

"So I repeat, the depositors can be assured that their money is safe," she said.

Soon after the RBI takeover, depositors thronged Yes Bank ATMs to withdraw money and police had to be deployed in some places to control the crowds.

Yes Bank has 1,000 branches across the country.

Refusing to elaborate on her meeting with the SBI chairman, the minister said that "was on a completely different matter".

"RBI governor has given me assurance that there will be an appropriate resolution soon. No depositor will lose (money)," she said. "Reserve Bank has taken cognizance of the problem."

The central bank, she said, has gone through the "process over and over again to find out an amicable solution".

"And that has been over the last couple of months. So it is not as if they have come in suddenly now. We have been monitoring the situation," she said adding the RBI has appointed an administrator who previously was with the SBI.

"Both the RBI and the government are looking at this with all the details before them, not just today. I have personally monitored the situation over the last couple of months with the RBI. Therefore we have taken a course which will be in everybody's interest," she added.

Yes Bank had been seeking new capital since last year to bolster its ratios and quell questions about its stability due to its exposure to the non-banking finance industry entangled in a prolonged crunch in the local credit market.

The SBI chairman said the resolution to the Yes Bank crisis will come "very shortly".

"This is not a sectoral problem. It is a bank-specific problem," he said. "The RBI will take all steps to ensure financial stability."

On SBI picking up a stake in Yes Bank, he said the lender already has an in-principle approval for doing so.

"If SBI has to pick up a stake in Yes Bank, we have an in-principle approval for that," he said.

Commenting on the crisis at Yes Bank, Alka Anbarasu, Vice President – Senior Credit Officer, Financial Institutions, Moody's Investors Service, said: "RBI's moratorium on Yes Bank is credit negative as it affects timely repayment of bank depositors and creditors."

"While Moody's expects Indian authorities will take steps to prevent the weakness in the bank's viability from significantly impacting its depositors and senior creditors, the lack of a coordinated and timely action highlights continued uncertainty around bank resolutions in India," she said.