PM Modi arrives in UK for bilateral meetings, CHOGM

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.

United Nations, Apr 28: UN chief Antonio Guterres has warned that extremist groups are taking advantage of the COVID-19 lockdowns and intensifying efforts on social media to recruit youths online by exploiting their anger and despair, asserting that the world cannot afford a lost generation due to the unprecedented global health crisis.

The UN Secretary-General made the remarks on Monday during a video conference to review the five years since its adoption of a landmark resolution on youth, peace and security.

We can already see such groups taking advantage of the COVID-19 lockdowns, intensifying their efforts on social media to spread hatred and to recruit young people who may be spending more time at home and online, he said.

Guterres told the Security Council that even before the current crisis, young people were facing enormous challenges.

Listing startling numbers, he said one of every five young people was already not in education, training or employment and one of every four is affected by violence or conflict. Every year, 12 million girls become mothers while they themselves are still children.

These frustrations and, frankly, failures to address them by those in power today, fuel declining confidence in political establishments and institutions. And when such a cycle takes hold, it is all too easy for extremist groups to exploit the anger and despair, and the risk of radicalisation climbs, he said.

Issuing a call to action on youth, peace and security, Guterres said the world cannot afford a lost generation of youth, their lives set back by COVID-19 and their voices stifled by a lack of participation. Let us do far more to tap their talents as we tackle the pandemic and chart a recovery that leads to a more peaceful, sustainable and equitable future for all.

With over 1.54 billion children and youth out-of-school and young people acutely feeling the impact of the COVID-19 crisis, Guterres said countries must do more to harness the talents of young people to address the crisis and its aftermath.

In presenting his first report on the Security Council resolution, the UN chief said youth were already confronting numerous challenges even before the pandemic, including in accessing education, or through being affected by violence and conflict. Those pressing for peace or upholding human rights have been threatened.

Despite these obstacles, young people across the world have joined the common fight against the coronavirus disease, supporting both frontline workers and people in need. And they continue to push for change.

UN Youth Envoy Jayathma Wickramanayake spoke of the need for more meaningful partnerships between young people and the civil society organisations and government institutions that work on the youth, peace and security (YPS) agenda.

To date, there are no national action plans on YPS but I'm pleased to note that in some countries, these are in the process of development, she said.

For a national roadmap to be successful, a participatory, transparent and youth-led process with adequate resources are needed, she said.

Issuing his four-point call to action for the Council, Guterres urged members to do more to address the various challenges facing young people.

He also called for investment in youth participation, but also in their organisations and initiatives.

We must strengthen human rights protections and protect the civic space on which youth participation depends, he said. And fourth, we must emerge from the COVID-19 crisis with a determination to recover better - massively increasing our investment in young people's capacities as we deliver the Sustainable Development Goals.

Washington, Feb 19: US President Donald Trump has said he is "saving the big deal" with India for later and he "does not know" if it will be done before the presidential election in November, clearly indicating that a major bilateral trade deal during his visit to Delhi next week might not be on the cards.

"We can have a trade deal with India. But I'm really saving the big deal for later," he told reporters at Joint Base Andrews Tuesday afternoon (local time).

The US and India could sign a "trade package" during the visit, according to media reports.

Asked whether he expects a trade deal with India before the visit, Trump said, "We're doing a very big trade deal with India. We'll have it. I don't know if it'll be done before the election, but we'll have a very big deal with India."

US Trade Representative Robert Lighthizer, the point-person for trade negotiations with India, is likely to not accompany Trump to India, sources said. However, officials have not ruled it out altogether.

In an apparent dissatisfaction over US-India trade ties, Trump said, "We're not treated very well by India." But he praised Prime Minister Narendra Modi and said he is looking forward to his visit to India.

"I happen to like Prime Minister Modi a lot," Trump said.

"He told me we'll have seven million people between the airport and the event. And the stadium, I understand, is sort of semi under construction, but it's going to be the largest stadium in the world. So it's going to be very exciting... I hope you all enjoy it," he told reporters.

Meanwhile, the US-India Strategic and Partnership Forum (USISPF) in a report said the latest quarterly data depict continuation of overall positive bilateral trade trends. The third quarter data reflects some downslide in growth rates.

"It may be due to several reasons, including the unexpected economic slowdown in India's economic growth, impact of US-China trade war, GSP withdrawal from the US side and retaliatory tariffs on specific US goods from the Indian side," USISPF said.

According to the report, the data available for the first three quarters of 2019 (January-September) pulled the overall growth rate in cumulative bilateral trade down to 4.5 percent from 8.4 percent registered for the first two quarters.

Goods and services trade performance in third quarter was dismal at -2.3 percent, in contrast with the impressive 9.6 percent growth witnessed for the first two quarters of the year; while trade in services was up two percent goods trade dropped five percent, the report said.

The cumulative US-India trade in goods and services (USD 110.9 billion) for the first three quarters of 2019 increased 4.5 percent with US exports and imports growing at four percent and five percent respectively.

The US exported USD 45.3 billion worth of goods and services to India in the first three quarters 2019, up 4 percent from the corresponding period in the previous year; and the US imported USD 65.6 billion worth of goods and services from India, up five percent from the previous year's USD 62.5 billion level for the same period, it said.

The USISPF has projected that the total bilateral trade can touch USD 238 billion by 2025 if the current 7.5 percent average annual rate of growth sustains; however, higher growth rates can result in bilateral trade in the range of USD 283 billion and USD 327 billion.

The US remains the top trading partner for India in terms of trade in goods and services, followed by China. While the bilateral trade between US and India is approximately 62 percent in goods and 38 percent in services, the bilateral trade between India and China is dominated by goods.

China had a huge trade surplus of USD 58 billion with India, indicating Beijing's strength in the Indian market, especially in sectors, such as electronics, machinery, organic chemicals, plastics and medical devices.

The US goods exports to India, in comparison, were mainly concentrated in mineral fuels, precious stones, and aircraft. The US faces tough competition with China in the Indian market in areas such as electronics, machinery, organic chemicals and medical devices.