COVID-19: Most viruses, other germs do not spread easily on flights, says CDC

Mar 10: Indian energy tycoon Mukesh Ambani is no longer Asia’s richest man, relinquishing the title to Jack Ma after oil prices collapsed along with global stocks.

The rout, exacerbated by mounting fears that the spread of the novel coronavirus will thrust the world into a recession, erased $5.8 billion from Ambani’s net worth on Monday and pushed him to No. 2 on the list of Asia’s richest people, according to the Bloomberg Billionaires Index. Ma, the Alibaba Group Holding Ltd. founder who relinquished the No. 1 ranking in mid-2018, is back on top with a $44.5 billion fortune, about $2.6 billion more than Ambani.

Oil plunged the most in 29 years on Monday as Saudi Arabia and Russia vowed to pump more in a struggle for market share. The slump comes just as the coronavirus is spurring the first decline in demand in more than a decade. That raises questions about whether Ambani’s flagship Reliance Industries Ltd. will be able to cut net debt to zero by early 2021, as he has pledged. The plan hinges on a proposal to sell a stake in the group’s oil and petrochemicals division to Saudi Arabian Oil Co., the world’s biggest crude producer.

While the coronavirus has curtailed some of tech giant Alibaba’s businesses, the damage has been mitigated by increased demand for its cloud computing services and mobile apps.

Reliance Industries, by comparison, has no such silver lining. The Indian conglomerate’s shares plunged 12% on Monday, the most since 2009, extending this year’s decline to 26%. Alibaba’s American depositary receipts have slipped 6.8% so far in 2020.

Ma reclaims crown after Reliance shares were pummeled in 2020.

Few of the world’s billionaires fared well in Monday’s collapse as the S&P 500 Index and Dow Jones Industrial Average each plunged more than 7.5%, the most since the 2008 financial crisis, threatening to end the longest bull market in history. But no one did worse than those whose fortunes are underpinned by oil. Wildcatter Harold Hamm’s fortune was cut almost in half to $2.4 billion and fellow oil magnate Jeff Hildebrand lost $3 billion, bumping both from Bloomberg’s 500-member wealth ranking.

In a pivot toward new businesses such as telecommunications, technology and retail, Ambani’s Reliance Industries has piled on billions of dollars of debt over the years.

It spent almost $50 billion -- most of it funded by borrowings -- to build Reliance Jio Infocomm Ltd., which became India’s No. 1 wireless carrier within about three years of its debut. As the mobile venture took off, Ambani also unveiled plans for an e-commerce empire to rival Amazon.com Inc. in India.

Addressing concerns over the liabilities, Ambani pledged in August to cut the group’s net debt to zero from about $21 billion as of last March. The Aramco deal is crucial to that plan for which Reliance Industries has valued its oil-to-chemicals division at $75 billion including debt, implying a $15 billion valuation for the 20% stake that’s for sale.

Signs of a potential delay to that deal unnerved some investors, hammering the stock since it touched a record high on Dec. 19.

Reliance Industries expected the Aramco transaction to be completed by March, but people familiar with the matter said in February that talks were still ongoing to bridge differences between the two parties over the deal’s structure.

Adding to the uncertainty, Indian Prime Minister Narendra Modi’s administration has petitioned a court to halt the proposed stake sale, threatening a key source of funds needed to pare net debt.

But Ambani, 62, may soon bounce back from the setback, said Harish H.V., managing partner at ECube Investment Advisors in Bengaluru, India.

“The game isn’t over,” he said. “Ambani has successfully built a robust business model which would keep him in the game. Moreover, his telecom business will start yielding results in coming years.”

Lukung, Jul 17: Union Defence Minister Rajnath Singh on Friday assured that not an inch of our land can be taken by any power in the world while he interacted with the Indian Army and ITBP personnel at Lukung.

Referring to the India-China border standoff, he said, "Talks are underway to resolve the border dispute but to what extent it can be resolved I cannot guarantee. I can assure you, not one inch of our land can be taken by any power in the world."

Emphasising on finding a diplomatic solution to the standoff, he further said, "If a solution can be found by talks, there is nothing better."
"Recently what happened between troops of India and China at PP14, how some of our personnel sacrificed their lives protecting our border. I am happy to meet you all but also saddened because of their loss. I pay my tributes to them," he added.

Singh interacted with the Army and Paramilitary troops here along with Chief of Defence Staff General Bipin Rawat and Army Chief General MM Naravane.

Earlier today, the Defence Minister witnessed para dropping and scoping weapons here. He also inspected a Pika machine gun.

Indian Army T-90 tanks and BMP infantry combat vehicles carried out the exercise at Stakna, Leh in presence of Singh, Chief of Defence Staff and Army Chief.

Defence Minister is on a two-day visit to Ladakh and Jammu and Kashmir. He will take stock of the situation at both the Line of Actual Control (LAC) and the Line of Control (LOC).

While Pakistan constantly violates ceasefire from across the LoC, China has continued to intrude into Indian territory in Ladakh region in recent past, escalating tensions between India and its eastern neighbour.

On June 15, twenty Indian soldiers laid out their lives during combat with Chinese forces in Galwan valley, leading to tensions between both nations. Chinese soldiers subsequently started moving back following dialogues between two countries through the military level and diplomatic level.

Singh was accompanied by the Chief of Defence Staff General Bipin Rawat and Army Chief General MM Naravane.

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.