Technician gets sucked into Air India plane engine, dies

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

New Delhi, Feb 21: A petition has been filed in the Supreme Court challenging the sedition case registered against a Karnataka school management for allegedly allowing students to stage an anti-CAA, anti-NRC drama that 'portrayed Prime Minister Narendra Modi in poor light'.

The petition seeks quashing of the FIR against the principal and other staff of the Shaheen School at Bidar who have been booked under sections 124-A (sedition) and 153-A (promoting enmity between different groups) of the Indian Penal Code.

In the petition filed on Thursday, social activist Yogita Bhayana has also sought an apex court direction for a proper mechanism to deal with alleged government misuse of the sedition law.

Section 124A of the IPC says that "whoever brings or attempts to bring into hatred or contempt, or excites or attempts to excite disaffection towards... the Government shall be punished with imprisonment for life...".

Bhayana, in the plea, has sought a direction to the Centre and the Karnataka government "to quash the FIR registered in connection of seditious charges against the school management, teacher and a widowed parent of a student for staging a play criticizing CAA, NRC, and NPR."

The petition claimed the police "also questioned students, and videos and screenshots of CCTV footage showing them speaking to the students were shared widely on social media, prompting criticism."

It further quoted the school principal, alleging that "on one occasion, police in uniform questioned students, with no child welfare officials present".

The plea said that the "proceedings were violative of Article 21 (right to life and personal liberty) of the Constitution and abuse of process of law."

"Issue an order directing the Centre to constitute a committee to scrutinise complaints under 124-A IPC and adhere to judgments by the apex court before registering the FIR under the section 124-A IPC," the petition said.

The drama was staged on January 21 by students of fourth, fifth and sixth standard.

The sedition case was filed based on a complaint from social worker Neelesh Rakshyal on January 26.

The complainant has alleged that the school authorities "used" the students to perform a drama where they "abused" Modi in the context of the Citizenship Amendment Act and the National Register of Citizens.

Mysuru, Feb 29: Tension prevailed at Tandavaput Industrial Area in Nanjangud taluk, Mysuru when a paper factory received a bomb threat call, which later turned out to be a hoax call.

The police said that the authorities of Rajshil Papers received a bomb threat call in the morning. After getting the information, the bomb detection squad rushed to the spot and inspected the factory premises and declared that it was a hoax call.

According to the police, an unidentified person called from his mobile, which is now switched off.