India curbs on palm oil imports from Malaysia: Mahathir rules out retaliation

Bueno Aires, Apr 25: Dozens of prisoners at a jail in Argentina's capital Buenos Aires rioted on Friday demanding urgent health measures after confirmation of a coronavirus case inside the facility.

Police surrounded the prison, which holds around 2,200 inmates, as explosions were heard, news agency reporters at the scene said.

A group of prisoners managed to climb onto a roof, burn mattresses and throw objects at security guards trying to quell the uprising.

Authorities have yet to comment on the riot or whether there are any injuries.

Inmates could be heard shouting demands for a judge to hear their case and for better protection against the pandemic, just a few days after a warden at the Villa Devoto prison was confirmed to have contracted the novel coronavirus.

"COVID-19 in Devoto, genocidal judges," read a banner hung from the prison roof. "We refuse to die in prison," read another.

The inmates are demanding, among other things, that releases that were pending before the pandemic be processed.

Several other riots broke out in prisons last week, including in Florencio Varela in Buenos Aires province where one inmate died and 20 were injured.

Argentina has been in lockdown since March 20 and has recorded more than 3,400 coronavirus cases and 167 deaths.

Chennai, Jan 19: Amid ongoing nationwide protests against Citizenship (Amendment) Act, 2019, finance minister Nirmala Sitharaman on Sunday said that as many as 2838 people from Pakistan were given citizenship during the last six years.

"In the last six years, as many as 2838 Pakistani refugees, 914 Afghan refugees, 172 Bangladeshi refugees including Muslims have been given Indian citizenship. From 1964 to 2008, more than 4,00,000 Tamils (from Sri Lanka) have been given Indian citizenship," Sitharaman said at 'Programme on Citizenship (Amendment) Act, 2019' event here.

She added, "Till 2014, over 566 Muslims from Pakistan, Bangladesh and Afghanistan were given Indian citizenship. During 2016-18 under Modi government, around 1595 Pakistani migrants and 391 Afghanistani Muslims were given Indian citizenship."

The minister, further, said, "It was also during the same period in 2016, that Adnan Sami was given Indian citizenship, this is an example."    

Sitharaman added that people who came from East Pakistan have been settled at various camps in the country.

"They are still there and it's been 50-60 years now. If you visit these camps, your heart will cry. The situation is the same with Sri Lankan refugees who continue to live in camps. They're barred from getting basic facilities," she said.

Asserting that the government is not snatching away anyone's citizenship, the BJP leader said: "This Citizenship (Amendment) Act is an attempt to provide people with a better life. We are not snatching away anyone's citizenship, we are only providing them that."

"The National Population Register (NPR) will be updated every 10 years and is not involved with the National Register of Citizens (NRC). Some are involved in raising false allegations and triggering people unnecessarily without any base," she added.

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.