Mobile Internet services restored in Kargil

Mar 16: A fourth batch of 53 Indians returned to India from Iran on Monday, taking the total number of people evacuated from the coronavirus-hit country to 389.

This comes a day after over 230 Indians were brought back from Iran to New Delhi and quarantined at the Indian Army Wellness Centre in Jaisalmer, the third batch to be evacuated from that country.

"Fourth batch of 53 Indians - 52 students and a teacher - has arrived from Tehran and Shiraz, Iran. With this, a total of 389 Indians have returned to India from Iran. Thank the efforts of the team @India_in_Iran and Iranian authorities," Jaishankar tweeted.

The Indians came in a Mahan Air flight that landed at the Delhi airport at around 3 am, officials said, adding that they were later taken to Jaisalmer in an Air India flight for being quarantined.

The first batch of 58 Indian pilgrims were brought back from Iran last Tuesday and the second group of 44 Indian pilgrim arrived from there on Friday.

Iran is one of the worst-affected countries by the coronavirus outbreak and the government has been working to bring back Indians stranded there. Over 700 people have died from the disease in Iran and nearly 14,000 cases have been detected.

Jaishankar had told Rajya Sabha last week that the government was focusing on evacuating Indians stranded in Iran and Italy as these countries are facing an "extreme situation".

Thiruvananthapuram, Jan 25: Kerala Chief Minister Pinarayi Vijayan on Friday asked the state's MPs to take up the matter of deaths of eight Keralites at a resort in Nepal early this week, with the Centre to pursue the matter with the neighbouring country's government.

He was speaking to the MPs at the customary meeting that the Chief Minister has with all MPs ahead of every session of the parliament.

"The demand has come from the families of the victims for a fair probe on what happened and adequate compensation. For this, you (MPs) should take it up with the Centre. A probe has to be done by the Nepal authorities and the Centre should pursue this with them," Pinarayi reportedly stated. 

"We (the state government) have already taken the issue with the Centre and will now send a detailed letter on the need for a fair probe by the Nepal authorities," he added.

The eight dead include Praveen Krishnan Nair, who worked in the UAE and was on a short vacation here, when the tragedy struck the family. His wife Saranya, a second year M.Pharma student, and their three children, were also killed.

On Friday morning, it was a goodbye that Thiruvananthapuram has perhaps not seen before, as hundreds of people, many of them strangers, came to pay last respects to the five members of the Nair family.

The family of Praveen Nair decided to bury the bodies of the three children and cremate the bodies of Praveen and Saranya. It was also decided to bury the ashes of the couple alongside their three children in the compound of their house.

The second family hailed from Kozhikode and the bodies of Ranjith, an IT professional, his wife, who works in a cooperative bank and their younger child, who slept in the same room as that of Praveen, arrived at the Kozhikode airport on Friday morning.

State Transport Minister A.K. Saseendran and many others were there to receive the bodies, which were first taken to Ranjith's new home that is almost complete.

From there it was taken to a hall for all to pay their last respects and then to the family home of Ranjith where the cremation took place.

Watching everything happening was Ranjith's elder son, seven-year-old Madhav, who escaped that night in Nepal as he was sleeping in another room.

Madhav had arrived from Delhi on Thursday and was unaware of the tragedy as he was busy moving around in a new bicycle, which his relatives had bought to keep him busy.

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.