NRI couple die after falling 800 feet in California

Melbourne, Jul 24: Home-made cloth face masks may need a minimum of two layers, and preferably three, to prevent the dispersal of viral droplets associated with Covid-19, according to a study.

Researchers, including those from the University of New South Wales in Australia, noted that viral droplets are generated by those infected with the novel coronavirus when they cough, sneeze, or speak.

As face masks have been proven to protect healthy people from inhaling infectious droplets as well as reducing the spread from those who are already infected, several types of material have been suggested for these, but based on little or no evidence of how well they work, the scientists said.

In the current study, published in the journal Thorax, the researchers compared the effectiveness of single and double-layer cloth face coverings with a surgical face mask (Bao Thach) at reducing droplet spread.

They said the single layer covering was made from a folded piece of cotton T shirt and hair ties, and the double layer covering was made using the sew method described by the US Centers for Disease Control and Prevention (CDC).

The scientists used a tailored LED lighting system and a high-speed camera to film the dispersal of airborne droplets produced by a healthy person with no respiratory infection, during speaking, coughing, and sneezing while wearing each type of mask.

Their analysis showed that the surgical face mask was the most effective at reducing airborne droplet dispersal, although even a single layer cloth face covering reduced the droplet spread from speaking.

But the study noted that a double layer covering was better than a single layer in reducing the droplet spread from coughing and sneezing.

According to the researchers, the effectiveness of cloth face masks is dependent on the number of layers of the covering, the type of material used, design, fit as well as the frequency of washing.

Based on their observations, they said a home made cloth mask with at least two layers is preferable to a single layer mask.

"Guidelines on home-made cloth masks should stipulate multiple layers," the scientists said, adding that there is a need for more research to inform safer cloth mask design.

New Delhi, Feb 9: Calling India a "long-standing friend", Sri Lankan Prime Minister Mahinda Rajapaksa on Saturday thanked Prime Minister Narendra Modi for visiting his country in the aftermath of last year's Easter Sunday terror attacks and outlined that New Delhi has always helped Colombo in its fight against terrorism.

In a joint press briefing with PM Modi, Mahinda Rajapaksa said he hopes that India will continue to help Sri Lanka fight terrorism.

Mahinda Rajapaksa expressed his gratitude to PM Modi for the neighbourhood first policy and the priority India gives to Sri Lanka.

"We had agreed that our cooperation is multifaceted and priority is given to a number of areas including security, economy, culture and social sectors. Part of our discussions centered on cooperation with regard to the security of the two countries. India has always assisted Sri Lanka to enhance our capacity, capabilities in intelligence and counter-terrorism. We look forward to getting continued support in this regard," he said.

"I thank the Prime Minister for visiting Sri Lanka in the aftermath of the Easter Sunday terror attacks that provided us with immense strength to come to terms with the tragedy. We also appreciate Prime Minister Modi's $400 million line of credit to enhance the economy of Sri Lanka and another $50 million line of credit for fighting terrorism," he added.

The Sri Lankan president urged PM Modi to consider further assistance to expand housing projectS all over Sri Lanka to benefit people from rural areas.

"The Prime Minister and I discussed how Sri Lanka and India can work together in the field of economy. India is among the world's fastest growing economies. I discussed with PM Modi how Sri Lanka could benefit from certain economic sectors where India is in a strong position," he said.

Concluding his statement, Mahinda Rajapaksa said, "India is our closest neighbour and a long-standing friend. The close historical links...provided a solid foundation to our ties."

Lucknow, Jan 21: Defending his brainchild, the Citizenship Amendment Act (CAA), Union home minister Amit Shah on Tuesday said the new law will not be scrapped despite the countrywide protests against it.

Addressing a rally here to drum up support for the CAA, Shah also declared that construction of a Ram temple "touching the skies" in Ayodhya will begin within three months.

He said there is no provision in the amended law for taking anyone's citizenship away. "A canard is being spread against the CAA by the Congress, SP, BSP, and Trinamool Congress. The CAA is a law to grant citizenship," he added.

"I want to say that irrespective of the protests this will not be withdrawn," he added.

Shah challenged Congress leaders to hold a discussion with him on CAA at a public forum.

He named Congress leader Rahul Gandhi, Samajwadi Party's Akhilesh Yadav, Bahujan Samaj Party's Mayawati and TMC chief Mamata Banerjee while throwing the "challenge".

Congress has become blind due to vote bank politics,"he said. He also blamed the Congress for Partition.