After stopping Haj subsidy, BJP offers to send Christians to Jerusalem for free

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, Mar 14: The central government on Saturday declared COVID-19 as a national 'disaster' and announced to provide ex-gratia relief of Rs 4 lakh to the families who died of the virus.

The Ministry of Home Affairs in a letter to states and union territories stated: "Keeping in view that spread of COVID-19 virus in India the declaration of it as pandemic by World Health Organisation, the Central government has decided to treat it as a notified disaster and announced to provide assistance under State Disaster Response Fund (SDRF)."

The Centre said that cost of hospitalization for managing COVID-19 patient would be at the rates fixed by the state governments. The state government can use SDRF found for providing temporary accommodation, food, clothing and medical care for people affected and sheltered in quarantine camps, other than home quarantine, or for cluster containment operations.

The state executive committee will decide the number of quarantine camps, their duration and the number of persons in such camps. "Period can be extended by the committee beyond the prescribed limit subject to condition that expenditure on this account should not exceed 25 percent of SDRF allocation for the year," the Ministry of Home Affairs notification stated.

The cost of consumables for sample collection would be taken from the funds which can be sued to support for checking, screening and contact tracing.

Further, funds can also be withdrawn for setting up additional testing laboratories within the government set up. The state has also to bear the cost of personal protection equipment for healthcare, municipal, police and fire authorities. Further SDRF money can also be used for procuring thermal scanners and ventilation and other necessary equipment.

New Delhi, Feb 11: With Election Commission">Election Commission's trends indicating a landslide victory for the Aam Aadmi Party (AAP), party chief Arvind Kejriwal expressed his gratitude towards the people of the national capital and said that this is the victory of the people who consider him as their son.

Making his first public appearance after the day's results, Kejriwal made a brief address to supporters in which, AAP chief thanked supporters, outlined his personal connection with citizens and party workers as well as credited his family for their continued support.

"I thank people of Delhi for reposing their faith in AAP for the third time. This is not my personal victory, this is the victory of Delhiites. This the victory of the people who consider me as their son and voted for us," Kejriwal said at party office here.

He also referred to the trends of the assembly polls, as the beginning of a new kind of politics.

"This is the beginning of a new kind of politics. This is a new sign. Only the party will get vote who will built mohalla clinics and good schools... This is the victory of mother India and India. Today is Tuesday, Hanuman-ji's day. Hanumanji ji blessed Delhi today, I thank him. We pray that Hanuman Ji keeps showing the right path to us so that we continue to serve people for the next five years," he said.

According to Election Commission", AAP won 5 seats while the party is leading on 58 seats in 70-member Delhi Assembly.