Bus rams into gas tanker after its driver averts collision with school van

Bengaluru, Apr 1: After fake sanitisers and masks, Central Crime Branch (CCB) police have busted another racket and seized fake thermometers worth Rs 8 lakh, it said in a statement on Wednesday.

Based on credible information, police conducted the raid on Prajval Surgical and Scientific store located on the first floor of a commercial building in the first block, Rajajinagar. They arrested store manager Keshavan N, 32, a resident of Kurubarahalli.

The police have seized 70 fake infrared forehead thermometers and 60 batteries used in these thermometers. They were worth around Rs 8 lakh as per the price they charged customers for each thermometer.

Bengaluru, Feb 21: Historian Ramachandra Guha on Thursday refuted Karnataka home minister Basavaraj Bommai's claim that the latter had apologised for police allegedly manhandling him during an anti-CAA protest in the city, saying he received no such call or apology.

The writer further said even if such an apology had been offered, he would have rejected it.

"The Home Minister of Karnataka has claimed on the floor of the State Assembly that he apologised to me by phone for the manhandling by the Bengaluru police on 19th December 2019. This is false.

I received no such call or apology," Guha tweeted.

"Even if such an apology had been offered, I would have rejected it.

The imposition of Section 144 was illegal (as the Karnataka High Court has since held) and I was proud to be one of thousands of peaceful protesters who defied the States arbitrary action on that day," he said in another tweet.

During his reply to the debate on law and order situation in the state, Bommai on Wednesday claimed that he had apologised to Guha.

The minister was apologising to senior Congress MLA and former Speaker K R Ramesh Kumar for police serving him notice and detaining him along with others at Mangaluru airport in December for trying to enter the city despite restrictions following violence there.

Stating that anti-CAA protests have taken place peacefully across the state, he had said, there might have been minor discrepancies, like that with historian Ramachandra Guha, being manhandled during a protest.

"I have called and apologised to him," he had said.

Guha was detained on December 19 for staging a demonstration against the Citizenship Amendment Act and National Register of Citizens at the Town Hall here, in defiance of the prohibitory orders imposed in the city.

He was taken away by police personnel and led to a police vehicle parked nearby.

Leader of Opposition in the assembly and former chief minister Siddaramaiah said Bommai has committed a "perjury" in the House, and asked him to apologise to people and Guha in front of media.

"Bommai has committed a perjury on the floor of the House. It answers the question of where @BJP4India workers derive their motivation to spread fake news.

Bommai has insulted the people whom he represents," he tweeted and demanded that he apologize to people and Guha.

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