Sudan: Bashir, aides charged for plotting the 1989 coup

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.

Washington, Jun 26: The US is reviewing its global deployment of forces to ensure it is postured appropriately to counter the People's Liberation Army, given the increasing threat posed by China to Asian countries like India, Malaysia, Indonesia, and the Philippines, Secretary of State Mike Pompeo said on Thursday.

Mr Pompeo made those remarks in response to a question during the virtual Brussels Forum 2020 of the German Marshall Fund.

"We're going to make sure we're postured appropriately to counter the PLA. We think that the challenge of our times, and we're going to make sure we have resources in place to do that," Mr Pompeo said.
 
The force posture review is being done at the direction of President Donald Trump, as part of which the US is reducing the number of its troops in Germany from about 52,000 to 25,000, he said.

Mike Pompeo said that the force posture would be dictated by the ground realities.

"In certain places there will be fewer American resources. There'll be other places - I just talked about the threat from the Chinese Communist Party, so now threats to India, threats to Vietnam, threats to Malaysia, Indonesia, South China Sea challenges, the Philippines," he said.

"To the extent that that changed, the difference in what the US decided to do impacts adversely a threat some place, it may be that other nations need to step up and take responsibility for their own defense in ways that they hadn't done previously. So, we want to do this in full consultation with all of our partners all around the world, and certainly our friends in Europe," Mr Pompeo said.

President Trump is being criticised for reducing troops from Germany. His critics say that this will increase the threat from Russia to Europe.

Mike Pompeo, however, did not agree with that argument.

It has been a long time since there has been a strategic review of our force posture all across the world. The US undertook that starting about 2.5 years ago, whether that was our forces in Africa, our forces in Asia, the force we have in the Middle East and in Europe, he said.

"We began to say these are often decisions that were made in a different time. Should we reallocate those a different way? Should we have a different composition of those forces? Everyone always wants to talk about ground troops. I get it. I was a young tank officer. You described that. There's nothing I like as much as a good M1 tank.

"But it's often the case that the capacity to deter Russia or other adversaries isn''t determined any longer by just having a bunch of folks garrisoned someplace. So, we really went to back fundamentally relook, what is the nature of the conflict, what''s the nature of the threat, and how should we allocate our resources, whether that''s our resources in the intelligence community, our resources from the Air Force or the Marines and Army," Mr Pompeo said.

Last week, Mike Pompeo criticised the Chinese Army for "escalating" the border tension with India and militarising the strategic South China Sea. He also described the ruling Communist Party of China (CPC) as a "rogue actor".

"Our broad set of allocation of security apparatus, our ability to counter cyber threats, how do we allocate them? What''s the best way to do this? And the decision that you see the president made with respect to Germany is an outcome from a collective set of decisions about how we''re going to posture our resources around the world," said the top American diplomat on Thursday.

Changes in force posture is being taken in consultations with allies and friends, Mr Pompeo said.

"President Trump has spoken to this. (Defense) Secretary (Mark) Esper will be in London today and in Brussels tomorrow. We''ll talk about our plan and how we''re thinking about delivering it," he said.

"But you should understand this, and I hope our European partners will understand this as well. When you see what we ultimately conclude, how we ultimately deliver on the statements of the president made, that they''re aimed squarely at what we believe to be democracies'' fundamental interest and certainly America's most fundamental interest," Mr Pompeo said.

Earlier this month, Mike Pompeo had said that China's actions, be it on the India border, or in Hong Kong or in the South China Sea, were part of the behaviour of the ruling Communist Party in Beijing in the recent past.

China has been fast expanding military and economic influence in the Indo-Pacific region, triggering concern in various countries of the region and beyond.

China is engaged in hotly contested territorial disputes in both the South China Sea and the East China Sea. Beijing has built up and militarised many of the islands and reefs it controls in the region. Both areas are stated to be rich in minerals, oil and other natural resources and are vital to global trade.

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Washington, May 6: At a time when the coronavirus pandemic has squeezed them, multi-national companies in America are laying off workers while paying cash dividends to their shareholders. Thus making the workers bear the brunt of the sacrifices while the shareholders continue to collect.

The Washington Post said in one of its reports that five big American companies have paid a combined USD 700 million to shareholders while cutting jobs, closing plants and leaving thousands of their workers filing for unemployment benefits.

Since the pandemic was declared an emergency, Caterpillar has suspended operations at two plants and a foundry, Levi Strauss has closed stores, and toolmaker Stanley Black & Decker has been planning layoffs and furloughs.

Steelcase, an office furniture manufacturer, and World Wrestling Entertainment have also shed employees.

Executives of those companies told the Post that the layoffs support the long-term health of their companies, and often the executives are giving up a piece of their salaries. Furloughed workers can apply for unemployment benefits.

But distributing millions of dollars to shareholders while leaving many workers without a paycheck is unfair, critics argue, and belies the repeated statements from executives about their concern for employees' welfare during the coronavirus crisis.

Caterpillar, for example, announced a USD 500 million distribution to shareholders April 8, about two weeks after indicating that operations at some plants would stop. The company however declined to divulge how many workers are affected.

"We are taking a variety of actions globally, but we aren't going to discuss the number of impacted people," spokeswoman of the company, Kate Kenny, said in a reply to an email by the Post.

This spate of dividends is also likely to revive long-standing debates about economic rewards.

"There are no hard-and-fast rules about this," said Amy Borrus, deputy director of the Council of Institutional Investors, a group that argues for shareholder rights and represents pension funds and other long-term investors.

Many large US companies choose to issue a regular, quarterly dividend to shareholders, often increasing it, and they boast about these payments because they help keep the share price higher than it might otherwise be. Those companies might be reluctant to announce that they are cutting or suspending their dividend during a crisis, Borrus was further quoted as saying.

But "companies have to be mindful of the optics of paying dividends if they're laying off thousands of workers," she added.

On March 26, Caterpillar had announced that because of the pandemic, it was "temporarily suspending operations at certain facilities." Two plants, in East Peoria, Ill., and Lafayette, Ind., were coming to a halt, as well as a foundry in Mapleton, Ill., according to news reports.

"We are taking a variety of actions at our global facilities to reduce production due to weaker customer demand, potential supply constraints and the spread of the covid-19 pandemic and related government actions," Kenny said via email.

"These actions include temporary facility shutdowns, indefinite or temporary layoffs," she added.

Similarly, Levi Strauss announced April 7 that the company would stop paying store workers, and about 4,000 are now on furlough. On the same day, the company announced that it was returning USD 32 million to shareholders.

"As this human and economic tragedy unfolds globally over the coming months, we are taking swift and decisive action that will ensure we remain a winner in our industry," Chip Bergh, president and chief executive of the company, also told the Post.

Stanley Black & Decker announced on April 2 that it was planning furloughs and layoffs because of the pandemic. Two weeks later, it issued a dividend to shareholders of about USD 106 million.

The notion that a company's primary purpose is to serve shareholders gained prominence in the 1980s but has come under attack in recent years, even from business executives, the newspaper reported.

Corporate decisions to suspend dividends and buybacks are complex, however, and it is difficult to know whether these suspensions of dividend and buyback programs were motivated by a desire to conserve cash in anticipation of bad times, and how much they are prompted by a sense of obligation to employees.

Over recent decades, the mandate to "maximize shareholder value" has become orthodoxy, for many, and it is often unclear what motivates companies to pare dividends or buybacks for shareholders, said William Lazonick, an emeritus economics professor at the University of Massachusetts at Lowell, who has been one of the leading critics of companies that distribute cash to shareholders through stock buybacks and dividends rather than reinvesting the profits into employees, innovation and production.