Yellow paint must for vehicles carrying school kids, rules AB Ibrahim

Bengaluru, Jun 12: Karnataka on Saturday reported 209 discharges, as the state confirmed 308 new cases of COVID-19 and three related fatalities, taking the total number of infections to 6,824 and the death toll to 81.

With the 14 new cases, the total number of covid cases in Udupi district alone today reached 1005. Dakshina Kannada today reported 30 cases and the tally mounted to 263. 

Today highest cases were reported from Kalaburgi (67), followed by Yadgir (52), Bidar (42) and Bengaluru Urban (31). More details to follow.

Bengaluru, Jul 16: Eminent theatre personality and renowned vocalist Dr Subhadramma Mansur who had won many awards including the prestigious Karnataka Rajyotsava award died on Wednesday night, according to her family.

She was 81 and is survived by two sons and a daughter.

The family said she developed severe respiratory problems last night following which she was rushed to hospital, but died on the way.

Condoling her death, Chief Minister B S Yediyurappa said Dr Mansur had contributed to the theatre world for five decades. He also recalled her devotion to music as an eminent vocalist.

"I pray for her soul to rest in peace and strength to the family to bear the irreparable loss," the Chief Minister said in his message posted on Twitter.

The veteran theatre personality from Ballari earned recognition for her roles in mythology-based dramas.

Connoisseurs of stage performances recall her memorable portrayal of Draupadi, a character from the Mahabharata.

Her depiction of Hemareddy Mallamma left a deep imprint on the audience.

Many awards were bestowed on her including the Rajyotsava Award, Nataka Akademi and Gubbi Veeranna Award and an honorary doctorate by the Srikrishna Devaraya University

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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