Love-struck Diana was willing to move to Pakistan: Jemima Khan

Paris, Apr 24: The worldwide death toll from the coronavirus pandemic crossed 190,000 on Friday, with nearly two-thirds of the fatalities in Europe, according to an AFP tally compiled from official sources at 0740 GMT.

A total of 190,089 people have died and 2,698,733 been infected since the virus emerged in China in December. The hardest hit continent is Europe, with 116,221 deaths and 1,296,248 cases.

The country with the most deaths is the United States with 49,963, followed by Italy with 25,549, Spain with 22,157, France with 21,856 and Britain 18,738.

Balochistan, May 1: Sajid Hussain, Editor-in-Chief of Balochistan Times, has been found dead in a Swedish town, the police have confirmed.

The Swedish police informed his family on Thursday night that they discovered his body from a river in Uppsala, The Times reported.
The Baloch journalist had been missing from the Swedish city since March 2 this year.

Sajid, 39, left Pakistan in 2012 and had been living as a refugee in Sweden since 2017. He wrote extensively on the suffering of the Balochis at the hands of the Pakistani military establishment.

His work often got him into trouble as the authorities did not like his reporting of Balochistan's forbidden stories, the reason he had to leave and live in exile.

The Baloch journalist was found dead two months after he went missing in Sweden.
Sajid left Pakistan because of security threats from Pakistan Army and its intelligence service ISI.

The spokesperson of the Baloch National Movement, Hammal Haider told news agency: "We are deeply saddened by the demise of prominent Baloch intellectual and writer Sajid Hussain."
"His death is indeed a loss of a great mind for the people of Balochistan. Due to his straightforwardness, he was loved among all journalistic, literary and political circles," added Haider.

"After this incident, we have serious concerns about our members and other Baloch refugees living in the West," he said.

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.