Mangalurean Dr Amitabh Anand among top 50 best business professors in the world

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Mysuru, Feb 21: Chief Minister B S Yediyurappa said Amulya Leona, who raised pro-Pakistan slogans, had links with Naxalites.

Yediyurappa said that Amulya's links with Naxalites have been proved in an investigation. "She must be punished and action will be taken against the people behind it," he said.

"Bail should not be given to Amulya. Her father has also said he won't protect her. Its proved now that she had contacts with Naxals. Proper punishment should be given," he added.

While speaking to reporters at Mysuru Airport, the chief minister said unless actions are taken against the organisations who provoke them to make such comments, it is not possible to control them.

Yediyurappa suspects that the incident was a conspiracy to disturb peace and harmony in the state.

Minister B C Patil said that such incidents should not repeat. "It appears that youths are misused for such anti-national activities, he said.

Mangaluru, Jan 10: A gang of smugglers, who were planning to illegally export 4,000 kg of red sandalwood worth Rs 2 crore through New Mangalore Port, were nabbed in a joint operation by the anti-rowdy squad of Mangaluru North sub-division and sleuths of Panambur police station.

The arrested have been identified as Tabrez (36), Lohith (35), Rakesh Shetty (44), Hussain kunhimonu (45) and Farooq (45).

Commissioner of Police Dr P S Harsha said that red sandalwood worth Rs 2 crore were seized from the accused.

The other seized properties from the arrested include a Maruti Brezza, Renault Pulse, Tata Ace, two plywood boxes and seven mobile phones valued Rs 19 lakh.

Based on a tip off, the police raided a godown on the road leading to Jokatte from Baikamlady Industrial Area and seized 4,000 kg of red sanders worth  Rs 2 crore.

A case has been registered under Sections 50, 62, 80, 104 of Karnataka Forest Act and 144, 165 of Karnataka Forest Rules at the Panambur police station.