BJP's Kerala unit chief Rajasekharan sworn in as Mizoram Governor

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.

Jaipur, Jul 14: In a show of strength, Deputy Chief Minister Sachin Pilot-led Rajasthan Congress camp on Monday released a video showing at least 16 MLAs sitting together.

This comes hours after the Congress held a legislature party meeting. Party leaders said 106 of 122 MLAs attended, a claim contested by the Pilot camp.

The 10-second video was shared late at night on Pilot's official WhatsApp group.

In the video, at least 16 MLAs are seen sitting together in a close circle. Pilot is not seen in the video.

Six other people can be seen in the video but they could not be identified.

Some of the MLAs seen in the video are Indraraj Gurjar, Mukesh Bhakar, Harish Meena.

Tourism Minister Vishvendra Singh tweeted the video with the caption "Family".

Ladnun MLA Mukesh Bhakar tweeted, "...Loyalty in Congress means Ashok Gehlot's slavery. That is not acceptable to us."

Pilot has been upset since he was denied the Rajasthan chief minister's post after the December 2018 assembly elections.

On Sunday, he claimed to have the backing of 30 Congress MLAs and "some independents".

Those close to him disputed Gehlot's claim that his government had a majority, and said this is proven in the assembly and not at the CM's house.

Sources close to him have also ruled out the possibility of Pilot joining the BJP.

In the 200-member Rajasthan Assembly, the Congress has 107 MLAs and the BJP 72. In the past, the ruling party has claimed the support of 13 independents, two MLAs each from the CPM and the Bharatiya Tribal Party, and one from the Rashtriya Lok Dal.

New Delhi, Feb 3: Union minister Prakash Javadekar on Monday said Delhi Chief Minister Arvind Kejriwal had called himself an "anarchist" and there is not much of a "difference between an anarchist and a terrorist".

His remarks come a few days after the Election Commission issued a show cause notice to BJP MP Parvesh Verma for allegedly calling Kejriwal a "terrorist".

Addressing a press conference here, Javadekar raked up the issue of Kejriwal "staying a night at the Moga residence of Khalistan Commando Force chief Gurinder Singh during the Punjab Assembly polls".

"You knew it was a militant's house. Still, you stayed there. How much more evidence do you need?" he said.

"Kejriwal is now asking with a sad face, 'am I a terrorist?' You are a terrorist and there is a lot of evidence to prove that. You yourself had said you are an anarchist. There is not much of a difference between an anarchist and a terrorist," the senior BJP leader said.

Flanked by Delhi BJP chief Manoj Tiwari and Union minister Anurag Thakur, Javadekar said the Aam Aadmi Party (AAP) was supporting Shaheen Bagh, where slogans of "Assam ko azadi", "Jinnah wali azadi" were being raised. "Supporting such slogans is also terrorism".

He alleged that Kejriwal stood with Jawaharlal Nehru University (JNU), where "anti-India slogans were raised, and did not grant sanction to prosecute (those who raised the slogans)".

"On January 26, you threatened that you would stop their prosecution. How much more proof do you need? The people of Delhi now know that you are the chief of liars, you are an anarchist and sympathise with terrorists.

"You are supporting Shaheen Bagh, JNU, the slogans being raised there and all such anarchists...then you are definitely a terrorist. This is your identity, no matter how innocent face you make," he said.

On Thursday, the Election Commission had issued a show cause notice to Verma, the BJP MP from West Delhi, for allegedly calling Kejriwal a "terrorist".

He was earlier barred from campaigning for 96 hours (four days) for making controversial remarks at a poll meet recently.

An emotional Kejriwal had later said it was for the people of Delhi to decide whether they consider him their son, brother, or a terrorist.

"How have I become a terrorist? I've arranged for medicines...did so much for the needy. I've never thought of myself or my family... am ready to give my life for the nation," he had said at a press conference.