AIE flight from Dubai skids on landing at Mangaluru Airport; tragedy averted

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Feb 20: A wild tusker was spotted in Kukke Subrahmanya town here, in the early hours of Thursday.

Range Forest Officer (RFO), Kukke Subrahmanya Tyagaraj said that it was seen walking from Kashi Kattte in the town to Nuchila around 0530 hours without creating any havoc.

The same elephant was spotted some days ago at Harihara, a small village town near Kukke Subrahmanya.

It has been roaming around in the forests nearby for some time now. So far, it had not caused disturbance to people nor had it damaged any property, Mr. Tyagaraj said.

Kukke Subrahmanya is on the foot of the Western Ghats.

Bengaluru, Apr 18: Amid fears that people from the unorganised sector are running out of cash to meet their daily expenses, the Karnataka government said there was no data available for such labourers, who can be provided financial assistance under the direct benefit transfer (DBT) scheme.

"The government does not have data of people in the unorganised sector such as drivers, farmers, domestic help and others. If we have to deposit directly into their account, we need data..," State Labour minister A Shivaram Hebbar told reporters.

The minister said a situation borne out of the COVID-19, where the entire nation has been lockdown was never anticipated.

To him, the pandemic has given an opportunity to gather information about the unorganised sector.

"This COVID-19 has taught the department and the workers a lesson that we should be prepared for a situation like this. We have learnt that all the information about labourers should be available with the labour department," Hebbar conceded.

The minister opined that the department should have had the list during the good times but nobody bothered to have it.

"During the good times nobody bothered about it -- neither they (beneficiaries) asked for it, nor we thought of it.," Hebbar said.

Now that the pandemic has struck, the government is focusing only on not letting anyone starve to death.

A three-level preparation has been made -- at the village level, Taluk level and the city level, the minister said.

Village anganwadis have been stuffed with food items to be cooked for the needy, whereas in Taluk level, government hostels have been turned into shelters for the labourers, he said, noting that lakhs of philanthropists in cities have come forward to feed the people from unorganised sector.

"The basic objective of our government is that no one should starve to death. The issue of organised or unorganised sector comes next," he explained.

On the fear of large-scale retrenchment, the minister said notices have been served on all the industries that no one should be expelled from the job.

However, Hebbar underlined that the industrialists today are as much in distress as the workers and his department was taking into account everyone's concern.

A decision will be taken in this connection by the government in the next two days, to provide assistance to small enterprises to keep them afloat.