Modi claims Pakistan interfering in Gujarat polls, seeks explanation from Congress

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.

New Delhi, Jun 13: Veteran Urdu poet Anand Mohan Zutshi 'Gulzar' Dehlvi passed away on Friday afternoon, five days after he recovered from COVID-19.

He died at his Noida home, and was a month shy of turning 94.

"His corona test came negative on June 7 and we brought him home. Today he had lunch and at around 2.30pm he passed away," his son Anoop Zutshi told PTI.

"He was quite old, and the infection had left him very weak. So doctors are thinking it was possible a cardiac arrest," he added.

A freedom fighter and a premier 'inquilabi' poet, Dehlvi was admitted to a private hospital on June 1 after testing positive for coronavirus.

Born in old Delhi's Gali Kashmeerian in 1926, he was also the editor of 'Science ki Duniya', the first Urdu science magazine published by the Government of India in 1975.

Remembering her fond memories of Dehlvi, historian-writer Rana Safvi recalled seeing the poet at most 'mushairas' in Delhi.

"I cannot express how big a loss it is. We used to see him at every 'mushaira' in Delhi. It's a big loss to Delhi and the world of poetry," Safvi said.

She also took to Twitter to express her condolences.

"Sad to hear about Gulzar Dehlvi saheb's demise. He was the quintessential Dilli waala. May he rest in peace," she tweeted.

According to Delhi-based poet and lawyer Saif Mahmood, Dehlvi was "the presiding bard of Delhi", following in the footsteps of iconic poets like Mirza Ghalib, and Mir Taqi Mir.

His death is the "end of an era", he said.

"No one knew the nooks and crannies of Mir and Ghalib's Delhi like him. Gulzar saheb claimed that his father, Allama Pandit Tribhuvan Nath Zutshi 'Zaar Dehlvi', was a disciple of the renowned poet Daagh Dehlvi," he said, while reminiscing his meeting with Dehlvi three years back.

The poet had recited a still unpublished 'sher' (couplet) then, Mahmood said, which seems more relevant now in the aftermath of his demise.

"Mere baad aane waalon, meri baat yaad rakhna/ mere naqsh-e-pa se behtar, koi raasta nahin hai". (Those who come after, remember what I say/ there’s no better way than to follow my footprints).

"He was a true exemplar of not just the Urdu language but also of the Urdu culture. In fact he was a living and breathing form of Urdu tehzeeb," Mahmood said.

Mumbai, May 14: The Shiv Sena on Thursday raised questions over the Centre's Rs 20 lakh crore stimulus package announced to revive the COVID-hit economy, and asked if India is not a "self-reliant" country at present.

An editorial in Sena mouthpiece 'Saamana' wondered how Rs 20 lakh crore will be raised, and opined that an environment needs to be created where industrialists, trade and business sectors are encouraged to invest.

On the path of new self-reliance, India cannot afford industrialists running away, and for that "political institutions like the ED and CBI need to be put in lockdown for some time," it said.

Prime Minister Narendra Modi on Tuesday announced new financial incentives on top of the previously announced packages for a combined stimulus of Rs 20 lakh crore, saying the COVID-19 crisis has provided India an opportunity to become self-reliant and emerge as the best in the world.

The Sena said the country is being told that the package will be beneficial for MSMEs (micro, small and medium enterprises), poor labourers, farmers and the tax-paying middle class.

"The package (as per the Centre) will reach 130 crore Indians and the country will become self-reliant. Does this mean India is not a self-reliant country at present?" the Marathi daily asked.

It is good that PPE kits and N95 masks are now being manufactured in India, it said.

"Any country progresses ahead while learning from crisis and through struggle. Before Independence, not even a needle was manufactured in India but in 60 years, India became self-reliant in science, technology, agro business, defence, manufacturing and atomic science," it said.

An institution like the Indian Council of Medical Research (ICMR), which is helping in the manufacturing of PPE kits, is part of the self-reliant India, it noted.

Wondering how Rs 20 lakh crore, as announced in the central package, will be raised, the Sena said an "environment needs to be created where industrialists, trade and business sectors will be encouraged to invest".

"India, on path of new self-reliance, cannot afford industrialists running away, and for that political institutions like the Enforcement Directorate (ED) and the Central Bureau of Investigation (CBI) need to be put in lockdown for some time," the paper said.

Despite announcing the 'lockdown-4' and the economic package, why its impact has not been reflected in the share market? it asked.

"Investors are in a dilemma. The prime minister and chief ministers must show them trust and support," it said.

"Earlier it was Pandit Nehru and now it is Modi. If (former prime minister) Rajiv Gandhi had not laid the foundation of a digital India, there wouldn't be video conference of PM, CMs and bureaucracy in times of coronavirus," the Uddhav Thackeray-led party said.

It agreed with Modi that coronavirus will stay for long, and lives need not revolve around it.

"We need to get back on our feet again," the Sena said.