LGBTQ nightclub turns into grocery store to survive Covid-19 pandemic

Jun 15: Oil prices fell on Monday, with U.S. oil dropping more than 2%, as a spike in new coronavirus cases in the United States raised concerns over a second wave of the virus which would weigh on the pace of fuel demand recovery.

Brent crude futures fell 66 cents, or 1.7%, at $38.07 a barrel as of 0016 GMT, while U.S. West Texas Intermediate (WTI) crude futures fell 81 cents, or 2.2%, to $35.45 a barrel.

Both benchmarks ended down about 8% last week, their first weekly declines since April, hit by the U.S. coronavirus concerns: More than 25,000 new cases were reported on Saturday alone as more states, including Florida and Texas, reported record new infection highs.

"Concerns about the recent uptick in COVID-19 infections in the U.S. and a potential 'second wave' are weighing on oil at the moment," said Stephen Innes, chief global market strategist at AxiCorp.

Meanwhile, an OPEC-led monitoring panel will meet on Thursday to discuss ongoing record production cuts to see whether countries have delivered their share of the reductions, but will not make any decision, according to five OPEC+ sources.

The Organization of the Petroleum Exporting Countries (OPEC) and its allies, collectively known as OPEC+, have been reducing supplies by 9.7 million barrels per day (bpd), about 10% of pre-pandemic demand, and agreed in early June to extend the cuts for a month until end-July.

Iraq, one of the laggards in complying with the curbs, agreed with its major oil companies to cut crude production further in June, Iraqi officials working at the fields told Reuters on Sunday.

Seoul, Jun 16: North Korea blew up an inter-Korean liaison office on its side of the border on Tuesday, the South's Unification Ministry said, after days of increasingly virulent rhetoric from Pyongyang.

"North Korea blows up Kaesong Liaison Office at 14:49," the ministry, which handles inter-Korean relations, said in a one-line alert sent to reporters.

The statement came minutes after an explosion was heard and smoke seen rising from the long-shuttered joint industrial zone in Kaesong where the liaison office was located, Yonhap news agency reported citing unspecified sources.

Its destruction came after Kim Yo Jong, the powerful sister of North Korean leader Kim Jong Un, said at the weekend: "Before long, a tragic scene of the useless north-south joint liaison office completely collapsed would be seen."

Since early June, North Korea has issued a series of vitriolic condemnations of the South over activists sending anti-Pyongyang leaflets over the border -- something defectors do on a regular basis.

Last week it announced it was severing all official communication links with South Korea.

The leaflets -- usually attached to hot air balloons or floated in bottles -- criticise North Korean leader Kim Jong Un for human rights abuses and his nuclear ambitions.

Analysts say Pyongyang may be seeking to manufacture a crisis to increase pressure on Seoul while nuclear negotiations with Washington are at a standstill.

Earlier Tuesday, North Korea's army said it was "fully ready" to take action against the South, included re-entering areas that had been demilitarised under an inter-Korean agreement.

"North Korea is frustrated that the South has failed to offer an alternative plan to revive the US-North talks, let alone create a right atmosphere for the revival," said Cheong Seong-chang, a director of the Sejong Institute's Center for North Korean Studies.

"It has concluded the South has failed as a mediator in the process."

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.