Karnataka announces 1 day holiday, 3 day mourning over Ananth Kumar's demise

Mangaluru, Jan 27: No power can now stop Kashmiri Pandits from going back to Kashmir, Defence Minister Rajnath Singh said on Monday, forcefully defending the NDA government’s decision to reorganise Jammu and Kashmir and abrogating its special status under Article 370.

Addressing a massive pro-CAA, NRC rally organised by the Bharatiya Janata Party at Gold Finch city, Kuloor, on the outskirts of the city, the Defence minister also sent a strong message to Pakistan and said India will not let anyone live in peace if it is harmed.

"We will not touch anyone, but if someone bothers us, then we are not going to let them live in peace," he said.

Referring to the exodus of a large number of Kashmiri Pandits from the Valley in the late 1990s at the height of militancy, Singh said no power now can stop them from returning to their homes.

On the Citizenship Amendment Act, the minister said it is not a law to hurt the sentiments of any religion but to give relief to victims of religious persecution.

Mahatma Gandhi had told Nehru to give citizenship to minorities like Hindus and Sikhs if they come to India and Prime Minister Narendra Modi has fulfilled that vision by bringing in the law, Singh said.

On several non-BJP states refusing to implement the CAA, the defence minister said it it is a central law and everyone should follow it.

Accusing the Congress of misleading people on the issue, he said the party should not forget its duty towards the nation just because it is in opposition.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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