2838 Pakistanis, 914 Afghans, 172 Bangladeshis given Indian citizenship in last 6 years: Fin Min

Washington, Feb 12: US President Donald Trump said on Tuesday he would sign a trade deal with Prime Minister Narendra Modi if 'it was the right one'.

The two countries have been trying to reach a limited trade pact with lower tariffs, but talks have run into problems over issues with data privacy and e-commerce controls.

Trump further said that he is looking forward to his visit to India later this month where millions of people would welcome him. "He (Modi) is a great gentleman and I look forward to going to India. So, we'll be going at the end of the month," Trump told reporters in his Oval Office, a day after the White House announced dates of his anticipated India trip.

Responding to a question, the president indicated that he is willing to sign a trade deal with India if it is the right one. "They (Indians) want to do something and we'll see... if we can make the right deal, (we) will do it," said Trump, a fortnight ahead of his visit to the country as the 45th US president.

India's new Ambassador to the US, Taranjit Singh Sandhu told PTI that Trump's forthcoming visit is a "reflection of the strong personal rapport" between Trump and Modi. "It also demonstrates their strong desire to take the relationship to new heights," said Sandhu, who had presented his credentials to Trump in Oval Office last week.

Over the last three years, Trump and Modi have developed a personal friendship and in 2019, the duo met four times including their joint address before a strong 50,000 crowd of Indian Americans in Houston.

This year, they have spoken over the phone on two occasions, including the one over the weekend. "Just spoke with Prime Minister Modi," Trump told reporters on Tuesday in response to a question on his India visit.

Excited to travel to India later this month, said Trump referring to his conversation with Modi during which the prime minister apparently told him about the hundreds and thousands of Indians who would be there to welcome him in Ahmedabad.

Trump jokingly told reporters that now he will "not feel good" about the size of the crowd that he addresses in the US which is usually between 40,000 to 50,000. "He (Modi) said we will have millions and millions of people. My only problem is that last night we probably had 40 or 50,000 people... I'm not going to feel so good... There will be five to seven million people just from the airport to the new stadium (in Ahmedabad)," Trump said.

"And you know (it) is the largest stadium in the world. He's (Modi) building it now. It's almost complete and it's the largest in the world," Trump said. The two leaders are expected to joint address a massive public rally at the newly build Motera Stadium in Ahmedabad.

Being built at an estimated cost of USD 100 million, the Motera Stadium with a seating capacity of 100,000 spectators will be the world's largest cricket stadium overtaking the Melbourne Cricket Ground in Australia.

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.

Jun 26: The Supreme Court on Friday permitted the Centre and the CBSE to cancel the remaining board examinations due to the COVID-19 pandemic and gave the go-ahead for the scheme to award marks to students for the cancelled papers scheduled to be held in July.

A bench of Justices A M Khanwilkar, Dinesh Maheshwari and Sanjiv Khanna permitted the CBSE to issue a notification for the cancellation of the examinations.

Solicitor General Tushar Mehta, appearing for the Centre and the CBSE, said that the assessment scheme would consider marks scored by students in the last three papers of the board exams.

Both CBSE and ICSE told the top court that the results of the class X and XII board exams can be declared by the middle of July.

The top court was hearing pleas seeking relief, including scrapping of remaining exams of Class 12 scheduled from July 1 to 15, in view of increasing number of COVID-19 cases. Similar relief was sought by the ICSE Board also.