Huge cache of weapons, steel bombs seized from BJP office in Kannur

Tumakuru, Mar 1: A leopard killed 30-month-old kid when she was playing outside her home in Baichnehalli village in Hebbur Hobli in Tumakuru district, police said on Sunday.

Police said that the deceased has been identified as Chandana. The incident happened on Saturday evening.

Forest and police officials visited the spot. A case has been registered in this connection.

Karnataka Minister for Forest Ananda Singh issued a shoot at sight order for the leopard which killed a 30-month-old boy while playing in front of his house on Sunday.

Speaking to newsmen after visiting the Bichenahalli where the kid was killed, he said that the operation will begin on Monday. The kid was dragged by the leopard and killed Saturday night.

Earlier also the same leopard had killed five-year-old child in the district, he added.

Bengaluru, Apr 29: The Karnataka police department has decided not to deploy its personnel aged above 55 as frontliners in Covid-19 related duty.

According to order issued here on Wednesday by Director General of Police Praveen Sood, it was a precautionary measure as the elderly was more susceptible to the risk of infection.

Apart from this, the order also states that any police personnel suffering from diabetes, hypertension, asthma, kidney, liver-related problems and cardiovascular disease must also be kept away from Coronavirus duty. The policemen can be deployed for station duty.

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.