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Bengaluru, Mar 18: In the backdrop of the breakdown of the COVID-19 virus across the state, the ongoing Budget session of the Karnataka Assembly, which is scheduled to end of this month, is likely to be cut short by one week.

According to official sources, the state government, which had shut down all the congregating places including Malls, Theatres, Marriage Halls and banned all the public functions, is in favor of the cutting short the ongoing Assembly session, to give focus on keeping a tab on the COVID-19 disease.

Mangaluru, Feb 28: Sleuths of Bajpe police station have busted a counterfeit currency racket and arrested two persons on charge of printing and circulating fake currency notes of Rs 500 and Rs 200.

The arrested have been identified as Dheerendra (45), a resident of Kanjilakody House in Bantwal taluk, and Sudheer Poojary (44), a resident of Adyar Volabail. Both of them said to be activists of Hindutva groups and had campaigned for BJP during last Lok Sabha polls.

Apart from counterfeit currencies, the cops have recovered a colour printer, two mobile phones and a motor bike from the accused.

According police, on February 23 the miscreants went to a petty shop owned by one Abdul Salam near Suralpady and purchased a Gillette blade costing Rs 20. They handed over Rs 200 currency note to Abdul Salam and took Rs 180 back from him.

However, the shop keeper grew suspicious about the genuineness of Rs 200 note. When he went in search of the duo, he came to know that they had purchased mustard seeds from a nearby provision store belonging to one Muhammad Arif. There too, they had handover Rs 200 fake note and got change.

The duo then took fake notes back from Abdul Salam and Muhammad Arif and escaped. The next day, Abdul Salam filed a complaint with Bajpe police station.

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.