When top judges say democracy is at stake, media focus on Sunny Leone

Bengaluru, Jun 18: As many as 210 new COVID-19 cases and 12 deaths have been reported in Karnataka, taking the total cases to 7,944 and death toll to 114, said State Health Department.

Today, 179 persons have been discharged across the State while 4,983 persons have been discharged so far.

The number of total active cases in Karnataka stands at 2,843.

The COVID-19 count in India has reached 3,66,946 on Thursday, according to the Union Health and Family Welfare Ministry (MoHFW).

The death toll due to COVID-19 has now reached 12,237. The COVID-19 count includes 1,60,384 active cases, while 1,94,325 patients have been cured and discharged or migrated so far.

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.

Mangaluru, May 24: A youth committed suicide by jumping into River Netravati from the old bridge at Panemangaluru on the outskirts of the city. 

The deceased has been identified as Nishant, son of Chandrahasa Moolya, a resident of Kolakeeru, near Kalladka in Bantwal taluk. 

When Nishant jumped to river, a few Muslim youths - identified as Shameer Goodinabali, Mohammad, Tauseef, Mukhtar, Zahid and Arif - also jumped to river in an apparent bid to rescue him. 

Though they managed to take an unconscious Nishant out of the water, he breathed his last without responding to any treatment. Jurisdictional Bantwal town police visited the spot later.

Meanwhile, a few locals captured the video of Muslim youths' attempt to rescue a Hindu youth on Eid al-Fitr amidst covid-19 lockdown. The video went viral within hours. 

Social media platforms including WhatsApp and Facebook flooded with messages appreciating the courage of Muslim men, who endangered their lives to save a Hindu youth on Eid day.