BJP MP Sakshi Maharaj openly defends rape convict ‘godman’

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.

Feb 4: Amid the agitations against Citizenship Amendment Act, National register of Citizens and National Population Registration across the country, Prime Minister Narendra Modi on Monday said that there is a "political design" behind all these protests including in Delhi's Jamia and Shaheen Bagh to ruin the harmony of the nation.

"Be it Seelampur, Jamia or Shaheen Bagh, protests held over the past several days regarding the Citizenship Amendment Bill. Is this just a coincidence? No. This is an experiment," said Prime Minister Narendra Modi in his first election rally for Delhi polls at Karkardooma.

"There is a political design behind all these protests including Jamia and Shaheen Bagh. These protests are a conspiracy to divide India. These protests are going to ruin the harmony of the nation," he asserted.

Lambasting the opposition parties including Congress and Aam Aadmi Party for supporting the ongoing protests, he said: "But AAP and Congress are provoking people. Constitution and tricolor are being kept in front and attention is being diverted from the real conspiracy."

"These people were doubting the ability of our forces during surgical strikes. Do citizens of Delhi want such people in power? These people are saving those who want to break India into pieces," he added.

People have been protesting at Jamia and Shaheen Bagh against CAA, NRC and NPR. Members of the Opposition have deemed CAA "discriminatory and anti-Constitution" while the Centre has maintained that the new law has no effect on Indian citizens.

Recently, two firing incidents took place near Jamia Millia Islamia University.On Sunday night, the firing incident was reported near gate number five at the university following which people including some students of the varsity gathered outside the Jamia Nagar police station. They returned from the Jamia Nagar police station after their complaint was registered.

Earlier, a student sustained injuries after a young man fired at the protestors near Jamia.

New Delhi, May 11: Shares of Indian Railway Catering And Tourism Corporation (IRCTC) jumped 5 per cent in early trade on Monday after the Indian Railways said it will gradually resume passenger train services from May 12.

The company's shares gained 5 per cent to Rs 1,302.85 -- its highest trading permissible limit for the day -- on the BSE. At the National Stock Exchange (NSE), it rose 5 per cent to Rs 1,303.55 -- its upper circuit limit.

Booking for reservation in these trains will start at 4pm on May 11 and will be available only on the IRCTC website.

The Indian Railways will gradually resume passenger train services from May 12 and will ask passengers to arrive at the station at least an hour before departure, the national transporter said on Sunday.

Initially, the all air-conditioned services will begin on 15 Rajdhani routes and the fare would be equivalent to that of the super-fast train, it said.

The special trains will run from New Delhi to Dibrugarh, Agartala, Howrah, Patna, Bilaspur, Ranchi, Bhubaneswar, Secunderabad, Bengaluru, Chennai, Thiruvananthapuram, Madgaon, Mumbai Central, Ahmedabad and Jammu Tawi.

All passenger services were suspended due to a lockdown announced on March 25 and the railways later started the on-demand Shramik Specials to ferry migrants stranded across the country. It, however, has been running freight and parcel services.