Control your mind: Brahma Kumari Shivani

Mangaluru, Feb 5: The New Mangalore Port implemented the Centre's Standard Operating Procedure (SOP) by screening the crew of cargo ships and passengers of Cruise Vessel for the highly contagious and deadly disease Coronavirus.

Sources in the port said that screening was being carried out at the harbour since the past few days, as a precautionary measure. All the 1,800 passengers and 786 crew of Cruise Vessel 'Costa Victoria,' which stopped at the port, were screened.

Arrangements were also made for screening foreign nationals arriving at the Mangalore International Airport (MIA). 

Besides screening, passengers were also made aware of the Coronavirus and the precautionary steps to be taken.

Mangalore, Jan 4: Writer-Researcher Dr Indira Heggade has been elected as the president of Mangaluru Taluk Sahitya Sammelan, which will be held on January 29 at St Agnes College in the City.

Dr Indira Heggade has brought out three stories, four novels and one poetry. She co-wrote 'Guttininda Sainika Jagattige' with SR Heggade.

Also, she translated 'Bantaru Vandu Samajo Samskrutika Adhyana' into English.

She is the recipient of various award given by literary and cultural organisations of Karnataka, including Janapada Academy Award, and Rani Abbakka Award.

Indira Heggade, along with receiving several awards in foreign nations, honoured with Sahitya Academy Award, Kamana Rangaswamy Dattinidhi Awards.

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.