Media completing ignoring issues of rural India, says Sainath

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, Jul 13: Air India Express flight brought around 170 passengers from Bahrain to Mangaluru under Vande Bharat Mission yesterday. 

This is the first VBM flight from Bahrain to Mangaluru. The flight took off from Bahrain at 10 am on Sunday and landed at Mangaluru International airport at 4.45 pm. 

Even though thousands of Indian expatriates from other gulf countries were brought to Mangaluru in past few weeks, no flight was arranged from Bahrain so far. Hence, several Mangalureans including senior citizens, women and patients were stranded in Bahrain for months together.

Local entrepreneur and president of Indian Overseas Congress (IOC) Mohammed Mansoor, who saw the plight of the hapless Indian expatriates in Bahrain had discussions with the Indian embassy in Bahrain and convinced it to arrange a special Air India Express flight under the Vande Bharat Mission. 

IOC, along with the cooperation of ‘KHK Heroes’ had arranged meal kits for passengers during their flight to Mangaluru. IOC had also contacted all the Mangaluru-based NRIs who wanted to fly back to India and made a list with the help of Indian embassy to avoid any untoward incidents.

IOC had also given details of hotels to be quarantined in Mangaluru and Udupi, names of nodal officers to be contacted and emergency telephone numbers. The passengers were given a warm farewell by the office bearers of IOC from Bahrain international airport.

The effort taken by Mohammed Mansoor, president of IOC is lauded by all. All the passengers who travelled by the flight have thanked IOC and its office bearers whole heartedly.

Bengaluru, Apr 17: The Ministry of Information and Broadcasting on Thursday served a show cause notice to a Kannada news channel for broadcasting a programme in which it purportedly said that the Centre would 'air drop money' to the poor, owing to the COVID-19 lockdown.

The notice said that the channel was "spreading false information, creating panic and social unrest.

" The channel had allegedly aired a show titled, "Helicopter Money" on Wednesday which claimed that the Centre would drop money from helicopters during the lockdown period.

A Twitter user took a serious note of it and complained to the Union Minister for Information and Broadcasting Prakash Javadekar.

The fact check team of the Press Information Bureau, under the Ministry of Information and Broadcasting, refuted the claim.

In its notice to the channel, PIB said, "You are hereby directed to show cause why your channel should not be taken out of air immediately. You are instructed to send your reply in this regard within 10 days of receipt of this notice."

Reacting to the notice, the management of the news channels said, "A programme which has been seen in bits and pieces and those who have not even seen the programme appears to have complained. Notice will be replied accordingly."