Bidriware demo by Qadri enthralls students of Alevoor school

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Mangaluru, Mar 25: A full-fledged control room was set up at the Deputy Commissioner's office in Mangaluru to collect all information about the suspected patients.  

The control room will function under the guidance of KIADB special land acquisition officer.  

All the details on those who arrived from foreign countries via Mangalore Airport, via airports in other districts, primary and secondary contacts of the people who arrived from foreign countries are being compiled at the control room.

Kanpur, Jan 1: In a seemingly bizarre development, the IIT in Kanpur has set up a panel to decide whether the poem "Hum dekhenge lazim hai ki hum bhi dekhenge", penned by Faiz Ahmad Faiz, is anti-Hindu.

The panel has been set up in response to complaints filed by a faculty member who claimed that the students, during a protest, sang this poem which was anti-Hindu.

The poem reads thus -- "Lazim hai ke hum bhi dekhenge. Jab arz-e-Khuda ke kaabe se. Sab bhut uthwaye jayenge, Hum ahl-e-safa mardood-e-harm. Masnad pe bithaye jayenge. Sab taaj uchale jaenge. Sab takht giraye jayenge. Bas naam rahega Allah ka. Hum dekhenge."

It was the last line that has turned into a bone of contention. Translated into English, it means, 'When thrones will vanish, only Allah's name will remain' -- implying the misleading translation by the professor.

The poem had been written by Faiz in reference to military dictator Zia-ul-Haq in 1979 and was against the military rule in Pakistan. Faiz had left leanings and was an atheist. He was known for his revolutionary writings that kept him in jail for several years.

It may be recalled that the IIT-Kanpur students had taken out a peaceful march on the campus on December 17 in support of the students of Jamia Millia Islamia and during the march, the students sang the Faiz poem.

According to IIT Deputy director Manindra Agarwal: "In the video, the students are seen reciting the Faiz poem which can also be perceived as being anti-Hindu.

The IIT faculty member, in his complaint, has alleged that the students made anti-India and communal statements during their demonstration in solidarity with the Jamia students.

The complaint was based on two lines of the poem, which have obviously been misinterpreted -- "When all idols will be removed, only Allah's name will remain."

The faculty member has stated that "organisers and masterminds must be identified and expelled immediately."

Fifteen other students have also signed the complaint filed by the professor against the protesting students.

Meanwhile, IIT students have said that the faculty member who lodged the complaint has been banned on a social networking site for posting communal content.

In an article published on the IIT-Kanpur student media portal, the students clarified what exactly happened on the day of protest and how their chant was given a 'communal and misleading' turn. They stated that they had recited a few lines of the Faiz poem in reference to the police crackdown on the Jamia students.