2.4 million pilgrims in final Hajj rituals as global Muslims celebrate Eid

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.

Dubai, Jun 9: Dubai's Emirates airline has begun laying off employees to reduce cost and save cash as the carrier looks to rightsize its workforce.

"We at Emirates have been doing everything possible to retain the talented people that make up our workforce for as long as we can. However, given the significant impact that the pandemic has had on our business, we simply cannot sustain excess resources and have to rightsize our workforce in line with our reduced operations. After reviewing all scenarios and options, we deeply regret that we have to let some of our people go," the spokesperson said in the statement.

Citing sources, Reuters and Bloomberg earlier reported that a majority of those being made redundant are cabin crew workers as well as a minority of its engineers and pilots, including those flew the Airbus A380.

"This was a very difficult decision and not one that we took lightly. The company is doing everything possible to protect the workforce wherever we can. Where we are forced to take tough decisions we will treat people with fairness and respect. We will work with impacted employees to provide them with all possible support," said the statement.

The spokesperson, however, didn't disclose how many employees are being made redundant in this latest round of rightsizing the workforce.

Emirates on Sunday confirmed that it extended the period of reduced pay for its staff for another three months till September. It had previously reduced basic wages by 25 to 50 per cent for three months from April, with junior employees exempted.

The airline had employed around 60,000 people at the end of its 2019-20 financial year.

Saj Ahmad, chief analyst at StrategicAero Research, said the announced job cuts at Emirates will likely not be the last given the unprecedented damage that Covid-19 has had not just on air travel, but on the entire aviation industry as a whole.

"Emirates' massive international network means that job reductions were always a last resort option as the company staves off cash burn and expenses at a time when revenues are dried up. While Emirates SkyCargo is enjoying a resurgence in activities, the reality is that this income will never offset the lost money from passenger operations," he added.

"Whilst some salary reduction schemes have prevented bigger job cuts for now, the absence of a cure or medicinal suppressant of Covid-19 means that air travel is unlikely to even reach pre-9/11 levels within 3-5 years, let alone pre-Covid-19 levels in that same time period. For that reason, Emirates' reduction in headcount is necessary to stay competitive, agile and be ready for when air travel can resume with a degree of normalcy that we have been accustomed to for decades," said Ahmad.

New Delhi, Jun 18: Reliance Industries Ltd on Thursday said it has sold a 2.32 per cent stake in its digital unit to Saudi Arabia's Public Investment Fund (PIF) for Rs 11,367 crore, taking the cumulative fund raising to about Rs 1.16 lakh crore in two months.

Starting with Facebook Inc on April 22, Reliance has sold almost 25 per cent of equity in Jio Platforms - the maximum reports suggest the company intends to dilute to financial investors.

The investment by Saudi sovereign wealth fund is "at an equity value of Rs 4.91 lakh crore and an enterprise value of Rs 5.16 lakh crore", the company said in a statement.

With this investment, Jio Platforms has raised Rs 115,693.95 crore from some of the leading global investment powerhouses at a time when the world is deeply impacted by the coronavirus pandemic, resulting in a recession kind of environment for the global economy.

"With the addition of PIF's investment, Jio Platforms has established partnerships with a marquee set of global financial investors, who will contribute to establishing the Digital Society vision for India," the statement said.

Jio Platforms houses India's biggest telecom firm by subscribers, Reliance Jio. With more than 388 million users, Jio has forced out several rivals and driven consolidation in the sector since entering the market in 2016 with free voice services and cut-price data.

Over the past two months, billionaire Mukesh Ambani's oil-to-telecom conglomerate has announced the sale of about $14 billion of assets, completed a Rs 53,124 crore rights issue and slowed the run rate of new investment by a quarter.

These will help Reliance meet its target of paying off Rs 1.61 lakh crore of net debt by the end of the year.
This is PIF's largest investment into the Indian economy to date.

Ambani, chairman and managing director of Reliance Industries, said, "We at Reliance have enjoyed a long and fruitful relationship with the Kingdom of Saudi Arabia for many decades. From oil economy, this relationship is now moving to strengthen India's New oil (data-driven) economy, as is evident from PIF's investment into Jio Platforms."

Yasir Al-Rumayyan, governor of PIF, commented: "We are delighted to be investing in an innovative business which is at the forefront of the transformation of the technology sector in India. We believe that the potential of the Indian digital economy is very exciting and that Jio Platforms provides us with an excellent opportunity to gain access to that growth."

"This investment will also enable us to generate significant long-term commercial returns for the benefit of Saudi Arabia's economy and our country's citizens, in line with our mandate to safeguard and grow the national wealth of the Kingdom," he said.

The transaction is subject to Indian regulatory and other customary approvals.

Morgan Stanley acted as financial advisor to Reliance Industries and AZB & Partners and Davis Polk & Wardwell acted as legal counsels.

Prior to this deal, Reliance had sold 22.38 per cent of Jio Platforms to investors including Facebook Inc, securing Rs 104,326.95 crore in eight weeks.

Facebook kicked off the party, investing Rs 43,573.62 crore for a 9.99 per cent stake on April 22. This was closely followed by a further Rs 60,753.33 crore in investment.

Silver Lake - the world's largest tech investor - bought a 1.15 per cent stake in Jio Platforms for Rs 5,665.75 crore on May 4. It invested another Rs 4,546.80 crore for additional 0.93 per cent stake on June 5, taking its total holding to 2.08 per cent
Private equity KKR and Vista Equity Partners have taken 2.32 per cent stake each for Rs 11,367 crore apiece. KKR invested in Jio Platforms on May 22 while Vista invested on May 8.

Abu Dhabi sovereign wealth fund Mubadala Investment Co picked up 1.85 per cent in Jio Platforms for Rs 9,093.60 crore on June 5. Abu Dhabi Investment Authority on June 7 invested Rs 5,683.50 crore for a 1.16 per cent stake in Jio Platforms.

On May 17, global equity firm General Atlantic picked up 1.34 per cent stake in Jio Platforms for Rs 6,598.38 crore.

Global investment firm TPG on June 13 picked up 0.93 per cent for Rs 4,546.80 crore while L Catterton bought 0.39 per cent for Rs 1,894.50 crore.