Providing jobs is govt’s responsibility, but youth should also try to get self-employed: Madhwaraj

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Feb 2: A woman from Bengaluru lost Rs 2.8 lakh to a 'foreign friend' who promised her gifts, including gold jewellery and foreign currency.

Priya, 37, of Banashankari III Stage, told police a man named Bright Wills from England befriended her on social media in December 2019.

On December 20, Wills said he would send gold ornaments and some British pounds as gifts to celebrate their friendship and took her postal address.

“A woman claiming to be an official from the customs office, Delhi, called me on December 21. She told me there was a courier from England in my name and I should pay Rs 75,000 tow ards customs clearance. I believed her and transferred Rs 75,000 to a bank account number provided by her. On December 23, another woman called and said gold ornaments had been sent to me by courier and I had to pay Rs 2.1 lakh towards the paperwork. I transferred the money to another account number mentioned by her," Priya told police.

"On December 25, I received an email which said I should make a surety deposit of Rs 4.3 lakh within 48 hours or else the courier would be sent back to its original destination. I realised I had been cheated by Wills and others. Till now, I have paid Rs 2.8 lakh to them," she claimed.

Bengaluru, Mar 5: Flipkart co-founder Sachin Bansal's wife Priya Bansal has filed a dowry harassment case against the entrepreneur at Kormangala police station in Bengaluru, sources said.

Priya alleged that ahead of their wedding, her father had spent Rs 50 lakh for the arrangements and given Rs 11 lakh in cash to Sachin instead of a car. Further, she has also alleged that Sachin has been pressurising her to transfer all the properties that were in her name to him. However, after refusing to do so her in-laws started harassing her.

A First Information Report (FIR) has been filed against Sachin and three others at Kormangala police station in Bengaluru.

The police are investigating the matter.

Further details awaited.