DC warns of stern action against those who disturb peace onTipu Jayanti'

New Delhi: BJP leader Yogish Gowda, who was a member of the Dharwad Zilla Panchayath in Karnataka, was killed because of "political reasons", the CBI has alleged in its charge sheet filed against eight accused before a Dharwad court, officials said on Thursday.

Mr Gowda was killed on June 15, 2016 in front of a gym in Dharwad.

The charge sheet was filed before the Judicial Magistrate First Class Court in Dharwad against Santosh Savadatti, Dinesh M, Sunil KS, Harshith, Aswath S, Nazeer Ahamad, Shanawaz and Nutan K. All but one are in judicial custody.

"The accused allegedly came to Dharwad on two occasions in June 2016 and with the support of the other accused, allegedly planned the murder of Yogish Gowda. These accused fled after the crime," CBI spokesperson RK Gaur said.

The agency has alleged that the killing had "political reasons" behind it and was a result of political rivalry, the officials said.

The agency had taken over the case on September 24, 2019, nearly three years after the murder, on the request of the BJP government in Karnataka and a referral from the centre.

The case was earlier probed by the Karnataka Police which had charged six people for allegedly planning and executing the killing.

The CBI has arrested eight accused in the case of which seven are in judicial custody, they said.

"Further investigation into the role of the other accused and larger conspiracy in this case is continuing on a day-to-day basis," Mr Gaur said.

BJP leader murder caseYogish GowdaCentral Bureau of Investigation (CBI)

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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