PM's intervention on Mahadayi water dispute impossible: Jagadish Shettar

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Bengaluru, Feb 29: The BJP leaders in Karnataka rallied behind Vijayapura MLA Basanagouda Patil Yatnal amid a controversy over his remarks that centenarian freedom fighter HS Doreswamy was a "Pakistani agent."

The saffron party leaders have extended support to Yatnal, days after he called Doreswamy a "fake freedom fighter" who behaves like a "Pakistani agent".

Yatnal made the comments at a press conference on February 25 while reacting to a query on a public meeting organised by the Congress titled 'Save the Constitution'.

"There are many fake freedom fighters. There is one in Bengaluru. Now we have to say what Doreswamy is. Where is that old man? He behaves like a Pakistan agent," Patil had said.

"Doreswamy is an elderly person and senior to all. He had participated in various agitations. He should also see what to talk and who will be hurt with those statements. We have all seen what he said about Prime Minister Narendra Modi," Primary and Secondary Education Minister S Suresh Kumar told reporters in Kodagu on Saturday reacting to Yatnal's outburst against Doreswamy.

Noting that the statements were made in bitter taste, Kumar said, "If you speak unpleasant (things), you will hear unpleasant."

Bellary City MLA G Somashekara Reddy too backed Yatnal saying that the his statement was appropriate. "There is nothing wrong in his statement. It is absolutely correct. I support him. It is not just okay to be a freedom fighter, but he should be a 'Deshbhakt' (patriot) too, who respects the unity and integrity of the nation."

On Friday, another BJP Minister KS Eshwarappa slammed Doreswamy alleging that he had visited Amulya Leona's residence and shared a good relationship with her family.

Leona had raised 'Pakistan Zindabad' slogans at an anti-CAA event here on February 21, taking everybody present by shock and dismay.

"We respect Doreswamy but he dances to the tune of Congress and supports whatever their leaders say," Eshwarappa said.

Mangaluru, Apr 14: Karnataka Chief Minister B S Yediyurappa today wished the people of Tulu Nad a Happy Bishu in Tulu language.

Yediyurappa took to Twitter on Tuesday and wrote in Tulu, 'Happy Vishu to everyone! A new year brings new hope and new energy. May the coming year bring good health and well-being in everyone’s lives.'

Bishu – the traditional New Year for the Hindus in Dakshina Kannada and Udupi, which begins from Tuesday is believed to signal the arrival of good luck and fortune for the coming year.