Cong Muslims are killers; good Muslims are with BJP: Eshwarappa at it again

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Mangaluru, Feb 25: Notorious gangster Ravi Poojary,

who has been extradited to India from Senegal, has 34 cases registered against him within the city police commissionerate.

Now in Bengaluru police custody for interrogation in connection with several cases there, Poojary faces cases relating to murder, murder attempt, extortion and threat calls in the city, police sources said.

Sources said the city police are trying to get Pujari for interrogation though it would take a while as the court has allowed Bengaluru police to keep him in custody for questioning and evidence taking for 15 days.

Most of the cases in the city against him, 28 of them, are in connection with threat calls.

He had allegedly made threat calls in 2015 to the then state ministers B Ramanath Rai and Abhayachandra Jain, demanding immediate arrest of the accused in the murder of Bajrang Dal worker Prashanth Poojary.

All the cases against Poojary in the city were registered between 2007 and 2018.

Cases involving murder, death threats and shootouts are among the cases to be investigated, the sources said.

A total of 28 cases of death threat calls, one of murder, three of shootouts, one of abduction and a case of funding his associates lodged in prison are the crimes being probed by the city police.

The cases are now pending in courts at different stages of trial.

Cases of making threat calls to businessmen using his associates demanding protection money have been registered at Moodbidri, Kavoor, Kadri, Konaje, Barke and Urwa police stations.

Some of his associates were imprisoned in 2012 in connection with threat calls to a businessman from Kinnigoli.

The case relating to providing them money while in prison was also registered in the same year.

Pujari, wanted in many cases including extortion and murder in different parts of the country, including Karnataka and who had been on the run for over 15 years, was deported to Senegal following his arrest and later extradited

He had jumped bail in Senegal last year after being arrested there.