Muslim woman sues US firm for rejecting job due to hijab

Beijing, Jun 15: China is locking now ten more neighbourhoods in Beijing to try and contain the spread of a new coronavirus outbreak linked to a food market, authorities announced Monday.

City official Li Junjie said at a press conference that fresh cases had been found in a second wholesale market in northwestern Haidian district, and as a result, the market and nearby schools would be closed, and people living in ten communities around it placed under lockdown.

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.

More than one in six youths were jobless since the onset of the COVID-19 pandemic while those who remain employed have seen their working hours cut by 23 per cent, according to a report by the International Labour Organisation (ILO).

According to the 'ILO Monitor: COVID-19 and the world of work: 4th edition' published on Wednesday, youths are being disproportionately affected by the pandemic, and the substantial and rapid increase in youth unemployment seen since February is affecting young women more than young men, reports Xinhua news agency.

The pandemic is inflicting a triple shock on young people.

Not only is it destroying their employment, but it is also disrupting education and training, and placing major obstacles in the way of those seeking to enter the labour market or to move between jobs, said the report.

At 13.6 per cent, the youth unemployment rate in 2019 was already higher than any other group.

There were around 267 million young people not in employment, education or training worldwide.

"If we do not take significant and immediate action to improve their situation, the legacy of the virus could be with us for decades," said ILO Director-General Guy Ryder.

"If their talent and energy is sidelined by a lack of opportunity or skills, it will damage all our futures and make it much more difficult to re-build a better, post-COVID economy."

The report called for urgent, large-scale and targeted policy responses to support youth, including broad-based employment/training guarantee programs in developed countries, and employment-intensive programs and guarantees in low- and middle-income economies.