Hegde apologises in LS for his remark against Constitution, says his words were twisted

Bengaluru, Apr 24: Karnataka Chief Minister BS Yediyurappa on Thursday held a meeting with state officials to address the situation in the wake of COVID-19 pandemic.

Due to COVID-19, the prices of the crops have come down. It was instructed to buy those vegetables and keep them in cold storage and then sell. It was also instructed to export fruits, vegetables which cannot be kept for a long time to other states and countries.

Wherever there is a scarcity of drinking water, it was decided to supply water immediately.
Chief Minister Yediyurappa had earlier spoken to Union Minister Sadananda Gowda and took information regarding fertilisers.

As fertilisers' demand is less in the international market, the Union minister for fertilisers said that farmers will be given fertilisers at less than the actual price.

As some of the associations/guilds have violated the lease conditions by not starting the actual work which they have got the land for in Bengaluru, they have been instructed to return the land to the government where the lease conditions have been violated.

As far as the irrigation department is concerned, much water is stored in dams. It was decided to utilise the same for the cultivation of crops and for the purpose of drinking.

As far as the education department is concerned, it was instructed to give online training to students.

With the help of state television channel Doordarshan, it has been decided to teach students about the syllabus and other activities till the reopening of school.

The KSRTC has lost hundreds of crore due to the reduction in bus services due to COVID-19. So, they were instructed to use buses to transport goods to generate revenue.

The government also decided that salary for the doctors, who are working on a contract basis against COVID-19, will be increased significantly.

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.