SDPI to launch national campaign 'resist lynching India' in Aug

The current physical distancing guidelines provided by the World Health Organisation (WHO) and by the US Centers for Disease Control and Prevention (CDC) may not be adequate to curb the coronavirus spread, according to a research which says the gas cloud from a cough or sneeze may help virus particles travel up to 8 metres. The research, published in the Journal of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.

Study author, MIT associate professor Lydia Bourouiba, warned that droplets of all sizes can travel 23 to 27 feet, or 7-8 metres, carrying the pathogen.

According to Bourouiba, the current guidelines are based on "arbitrary" assumptions of droplet size, "overly simplified", and "may limit the effectiveness of the proposed interventions" against the deadly pandemic.

 She explained that the old guidelines assume droplets to be one of two categories, small or large, taking short-range semi-ballistic trajectories when a person exhales, coughs, or sneezes.

However based on more recent discoveries, the MIT scientist said, sneezes and coughs are made of a puff cloud that carries ambient air, transporting within it clusters of droplets of a wide range of sizes.

Bourouiba warned that this puff cloud, with ambient air entrapped in it, can offer the droplets moisture and warmth that can prevent it from evaporation in the outer environment.

"The locally moist and warm atmosphere within the turbulent gas cloud allows the contained droplets to evade evaporation for much longer than occurs with isolated droplets," she said.

"Under these conditions, the lifetime of a droplet could be considerably extended by a factor of up to 1000, from a fraction of a second to minutes," the researcher explained in the study.

The MIT scientist, who has researched the dynamics of coughs and sneezes for years, added that these droplets settle along the trajectory of a cough or sneeze contaminating surfaces, with their residues staying suspended in the air for hours.

"Even when maximum containment policies were enforced, the rapid international spread of COVID-19 suggests that using arbitrary droplet size cutoffs may not accurately reflect what actually occurs with respiratory emissions, possibly contributing to the ineffectiveness of some procedures used to limit the spread of respiratory disease," Bourouiba wrote in the study

Mangaluru, Apr 22: A team of officials raided the Big Bags International Pvt Ltd premises here on Tuesday following the apprehensions expressed by locals that the company has violated lockdown rules by resuming operations on April 20.

On Monday several workers of the firm from Kerala, Tumakuru and Bengaluru were reported to be at the premises to resume operations.

The raiding team asked the management to temporarily shut down operations and asked the workers to leave the place.

Newsroom, Feb 2: American business magnate Bill Gates has congratulated her daughter Jennifer Gates after she announced her engagement to her Muslim boyfriend Nayel Nassar.

“I am completely thrilled! Congratulations, @jenniferkgates and @nayelnassar”, commented the Microsoft boss to her daughter’s surprise Instagram story.

The proposal took place on a ski getaway. "Nayel Nassar, you are one of a kind. Absolutely swept me off my feet this past weekend, surprising me in the most meaningful location over one of our many shared passions," she wrote on Instagram. The pair does have one very significant shared passion - horses.

Nassar, 29, is a showjumper. Gates, 23, has famously grown up an equestrian, and has even competed against Steve Jobs' daughter.

In October, Nassar helped Egypt qualify for Tokyo 2020 - Egypt's first Olympic equestrian qualification in 60 years. He has been jumping since he was 10 years old and has the accolades to show for it - he has taken first place in a number of notable competitions, including the Longines FEI Jumping World Cup.

Nassar was born in Chicago to Egyptian parents and spent many of his formative years in Kuwait, where his well-to-do parents run an architecture and design firm, according to People. He is fluent in English, Arabic, and French.

He moved back to the US in 2009 and graduated from Stanford with an economics degree in 2013 - later, he supported Gates at her own Stanford graduation in 2018.

The couple received well wishes from many notable personalities on each of their Instagram posts, including comments from Bill and Melinda Gates, Georgina Bloomberg, and Eve Jobs.

 

 

 

 

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Happy birthday @nayelnassar, can’t begin to put into words how extraordinary you are. The most compassionate, intelligent, hilarious, supportive, warm, humble human being. Wishing you all the joy in the world today and all the years to come

A post shared by Jennifer Gates (@jenniferkgates) on Jan 21, 2020 at 8:44am PST