Rahim Uchil files plaint against Ramanath Rai for mispronouncing ‘Sulibele’

Bengaluru, Mar 19: In the backdrop of coronavirus pandemic, Karnataka State Road Transport Corporation (KSRTC) has reported huge revenue losses in March.

According to official data, the cumulative revenue loss in all services from March 1 till March 18 has amounted to around Rs 8,58,86,462 crores.

This includes cumulative revenue loss of Rs 5,33,82,456 in premium services, and cumulative revenue loss of Rs 3,25,04,006 in non-premium services.

The highest reported revenue loss in all services was reported on March 18, which amounted to Rs 1,90,25,183.

The total number of coronavirus cases in the state have reached 15, according to the Karnataka Health Minister.

A total of 169 positive cases of coronavirus have been reported in India so far, the Union Ministry of Health and Family Welfare said on Thursday.

Bengalur, May 15: Karnataka Deputy Chief Minister Dr CN Ashwath Narayan on Friday said that stern action will be taken against the persons responsible for organising the village temple fair in Ramanagara district.

"Stern action will be taken against the person responsible for organising the festival. This should not have happened," the Deputy CM said.

Flouting all social distancing norms, people had gathered in large numbers for a temple fair in Kolagondanahalli village of Ramanagara. People were even not wearing masks.

They had taken permission for gathering from Panchayat Development Officer NC Kalmatt.

Kalmatt has been suspended by Ramanagara Deputy Commissioner following a report by the Tehsildar.

Meanwhile, 45 more COVID-19 cases have been reported from Karnataka, taking the total number of coronavirus cases in the state to 1,032 on Friday, according to the state Health Department.

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.