Shiradi Ghat stretch to be closed from January 2 for repair

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Bengaluru, Mar 18: In the backdrop of the breakdown of the COVID-19 virus across the state, the ongoing Budget session of the Karnataka Assembly, which is scheduled to end of this month, is likely to be cut short by one week.

According to official sources, the state government, which had shut down all the congregating places including Malls, Theatres, Marriage Halls and banned all the public functions, is in favor of the cutting short the ongoing Assembly session, to give focus on keeping a tab on the COVID-19 disease.

Mumbai, Jun 14: Bollywood actor Sushant Singh Rajput committed suicide on Sunday, leaving all his fans and the industry in shock. While the reason behind him taking up the extreme step is still not clear, a look into Sushant’s social media feed suggests that things were not well for him for quite some time.

Sushant had been inactive on Twitter since months. His last tweet was on December 27, 2019. Since then, he did not even reply to any one on Twitter. Same is the case with his Facebook account as the last post on his timeline was on the same date. Interestingly, Sushant's Twitter cover picture is the popular painting - 'Starry Night', by Van Gogh, who had also reportedly committed suicide in 1890.

On Instagram, the young actor had last posted on June 3. It was a collage picture of him and his mother along with a cryptic caption that read, “Blurred past evaporating from teardrops Unending dreams carving an arc of smile And a fleeting life, negotiating between the two...#माँ”.

Was Sushant’s inactivity on Twitter, Facebook and his last cryptic post on Instagram a signal that the actor was having a tough time? Well, may be it will remain a mystery forever.