Meenakshi Shantigodu elected Dakshina Kannada ZP chief, Kasturi Panja deputy

Mangaluru, Jun 3: A banner that read "Veer Savarkar Flyover Pumpwell" surfaced on the sidewall of the Pumpwell flyover in Mangaluru on Tuesday night.

It is suspected that activists of Bajrang Dal put up the controversial banner. Though it was removed later, it sparked debates on social media and photos of it went viral.

The development comes amid the controversy over the naming of a flyover at Yelahanka in Bengaluru after Savarkar.

A Hindutva ideologue, Savarkar has tendered apology to British imperialists and pledged to support them following his arrest during India’s freedom movement.

Mangaluru, June 29: Six more personnel from Ullal Police Station in Mangaluru taluk have tested positive for covid-19. 

With this, the total number of covid positive cops from the Ullal Police Station mounted to 10.

Official sources said that throat swabs of five police personnel and a Home Guard from Ullal today received positive report today. Earlier, four other cops were tested positive. 

In addition to the police personnel, two undertrials arrested by the Ullal police on the charges of murder attempt at Thokkottu Olapete too were tested positive for Covid-19 June 28.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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