Taj Mahal belongs to Lord Shiva; rename it as Taj Mandir: BJP MP Vinay Katiyar

Jaipur, Mar 11: A 85-year-old man in Jaipur, who had returned from Dubai on February 28, has tested positive for coronavirus, a state government official said on Wednesday.

He was found presumptive positive in the first test on Tuesday and hence, a second test was conducted with fresh samples, the reports of which arrived late Tuesday night, Additional Chief Secretary, Medical and Health, Rohit Kumar Singh, said.

“The man who travelled to Dubai has been tested positive for coronavirus. It has been confirmed now,” Singh said.

“We have also got the manifest of the Spicejet flight he took from Dubai to Jaipur and are doing due diligence on that,” the official said, adding that intense contact tracing was underway.

The man has been kept in isolation at the SMS Hospital here.

“The man came to the hospital on Monday with symptoms of the virus. After the first test, his wife and son too have been kept in isolation at the hospital. The two, however, do not have coronavirus affliction symptoms,” Singh said.

A total of 235 people who came in contact with the octogenarian and his family have already been traced and are being monitored, he said.

Other contacts are also being traced, Singh added.

An Italian couple, who tested positive for COVID-19 last week, are also admitted in the hospital but their condition is improving, he said.

New Delhi, Feb 4: The investigation into the incident of violence at Jamia Millia Islamia during an anti-citizenship law protest was at a crucial stage, the Centre told the Delhi High Court on Tuesday.

The submission before a bench of Chief Justice D N Patel and Justice C Hari Shankar was made by Solicitor General Tushar Mehta while seeking more time to file a report regarding the probe.

Taking note of the submission, the bench granted the Centre time till April 29 to file a reply.

During the hearing, senior advocate Colin Gonsalves, appearing for some students of Jamia, said 93 students and teachers filed complaints about alleged attacks on them by police but no FIR has been filed against the agency till date.

The other lawyers for the petitioners alleged that the government has not complied with the court order to file a response within four weeks of the last date of hearing on December 19.

The bench, however, declined to pass any interim order and granted time till April 29 to the government to file a reply.

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.