After death of calf in mishap, cow vigilantes kill Muslim youth in Gujarat

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Jan 2: The Congress leadership in Delhi is expected to start the process of selecting a new party chief for Karnataka next week. There are strong indications the race has narrowed to DK Shivakumar and MB Patil.

Party insiders said the leadership almost finalised Shivakumar’s name as the president of Karnataka Pradesh Congress Committee (KPCC), but the decision was put on hold after requests by some senior members.

“It’s not that we are against Shivakumar. We think the party should have a Lingayat at the helm since community strongman and chief minister BS Yediyurappa is at the fag end of his long political career. There’s an opportunity here for a Congressman to occupy that space,” said a senior Congress politician, who didn’t want to be named.

That’s where the candidacy of Patil, a Lingayat, scores high.

The party, however, doesn’t want to compromise on quality and wants an efficient KPCC president who can unite two rival factions within the party, one led by Siddaramaiah and another by former union minister KH Muniyappa.

The need to pick a new state president arose after Dinesh Gundurao resigned from the post last month, taking moral responsibility for Congress’s poor showing in the byelections. Siddaramaiah also stood down as Congress party legislature leader.

The insiders said the new KPCC chief could be announced after January 16. The party might also appoint two working presidents and a new legislature party leader, who will automatically become the opposition’s voice in the assembly.

For the latter position, the name of senior Dalit politician and former deputy chief minister G Parameshwara is doing the rounds. But the party, the sources said, could still ask Siddaramaiah to reconsider his decision and stay on.

Many Congress members had raised questions over his stewardship after the bypoll disappointment. They said on his watch, the party had also fared badly in the assembly and Lok Sabha elections, demanding that he be held accountable.

Siddaramaiah is expected to visit Delhi next week to discuss the leadership issue with party boss Sonia Gandhi. Some other senior Congress members, including BK Hariprasad, are also likely to meet her.

Bengaluru, Feb 15: The Karnataka Legislative Assembly has decided to set aside two days - March 2 and 3 - for a special discussion over the controversial Citizenship (Amendment) Act continues across the country.

Assembly Speaker Vishweshwara Hegde Kageri told media persons here today that the Assembly would act as a platform for legislators to speak about the relevance of the Constitution and its contributions for the last seven decades. He had already held a round of discussions with senior legislators and all have expressed their willingness to participate in the debate. More details of the discussion would be worked out in the next few days after a meeting of the Business Advisory Committee of the House on February 18.

Asked whether it would be possible to have discussions rising above partisan politics in the present scenario, Mr. Kageri said “I have appealed to members to discuss the Constitution beyond the political prism.” Each member would be asked to speak on a specific topic of the Constitution.