Congress ignoring my grandson; Siddaramaiah is arrogant: Jaffer Sharief

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Jun 6: Private sector lender Karnataka Bank has reported to the RBI that it has been defrauded of over Rs 285 crore consequent to loans gone bad to four entities including DHFL.

A total of Rs 285.52 crore has been reported as fraud wherein the bank was one of the consortium lenders during 2009 to 2014 to Dewan Housing Finance Corporation Ltd (DHFL), Religare Finvest, Fedders Electric and Engineering Ltd and Leel Electricals Ltd, Karnataka Bank said in a regulatory filing on Friday.

The maximum is owed by DHFL at Rs 180.13 crore, followed by Religare Finvest Rs 43.44 crore, Fedders Electric Rs 41.30 crore and Leel Electricals Rs 20.65 crore.

"DHFL (defaulted entity) dealing with us since 2014 had availed various credit facilities under consortium arrangement wherein, we were one of the member banks. In view of Early Warning Signals (EWS) in the conduct of the account and other developments, the account was red flagged on November 11, 2019.

"The borrowing account was classified as Non-Performing Asset on October 30, 2019 and now, for misappropriation & criminal breach of trust & diversion of funds in the credit facilities extended earlier to the company, a fraud amounting Rs 180.13 crore has been reported to RBI," Karnataka Bank said.

Likewise, Religare Finvest Ltd (RFL) was dealing with the bank since 2014, availing various credit facilities.

Following classification of this account as non-performing in October 2019 by a consortium member, Karnataka Bank reported to RBI a fraud amounting to Rs 43.44 crore in the credit facilities extended earlier, on account of diversion of funds.

Leel Electricals was classified as NPA account in March 2019 and it reported to RBI a fraud amounting to Rs 20.65 crore in the credit facilities to the company on account of diversion of funds.

"In all the referred three non-performing accounts, necessary provisions have been made in full to be spread across four quarters," it said.

Fedders Electric and Engineering Limited was reported as NPA in July 2018 by a member bank in consortium, subsequent to which Karnataka Bank reported fraud of Rs 41.30 crore on account of fund diversion.

The account has already been fully provided for, it added.