UAE honours PM Modi with top civil honour

Bhopal, Mar 10: The number of MLAs who have resigned from the Congress in Madhya Pradesh climbed to 20 on Tuesday afternoon with another legislator quitting the ruling party, sources said.

While 19 MLAs, most of them believed to be loyal to expelled party leader Jyotiraditya Scindia, have sent their resignation letters via e-mail to Raj Bhavan, Bisahulal Singh submitted his resignation letter as an MLA to the Assembly speaker.

"We have received resignations of 19 MLAs through e-mails with attachments," a Raj Bhawan official told PTI.

Sources in Congress produced a copy of Bisahulal Singh's resignation letter which he submitted to the speaker.

Former chief minister and senior BJP leader later announced that Singh (65) has joined the BJP.

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 20: The government on Thursday said one Indian who tested positive for coronavirus has died in Iran while the other citizens infected with the disease are being provided treatment and taken care of by the Iranian government.

Noting that the virus tends to be more fatal for those whose immunity levels are low, a senior MEA official said the deceased, an elderly person, belonged to the vulnerable age group and had health-related complications.

The death was not because of lack of medical attention or care, he said.

"We have evacuated 590 people from Iran where the situation is very severe. The Indians infected with coronavirus in Iran have been segregated and taken care of very well by the government there. We believe they will recover and we will bring them back," the MEA official said, adding that 201 Indians were evacuated from Iran on Wednesday.

The official said closely knit families required some persuasion and counselling during the process of segregation to prevent the spread of the contagion.

The Indian ambassador and other officials explained the consequences of infected people not being separated from their families and were successful to a large extent in segregating the positive cases from the negative ones, he said.

"Some pilgrims and students are still there and our embassy and mission are in control (of the situation)," the official said.