Cong ministers are corrupt... Cong ministers will join BJP: Nalin Kateel

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, May 10: Amid the coronavirus lockdown, two police inspectors were suspended for their alleged involvement in the illegal sale of cigarettes.

"Two police inspectors suspended after an enquiry found their involvement in illegal sale of cigarettes during the lockdown in Bengaluru," informed Joint Commissioner of Police (Crime) Sandeep Patil while speaking to news agency.

More details in this regard are awaited.

Bengaluru, Feb 16: Three students from Kashmir studying at a private engineering college in Hubballi district of Karnataka were arrested on sedition charges for allegedly raising pro-Pakistan slogans and posting a video of it on a messaging platform, police said on Saturday.

Police said, according to preliminary information, the students are from Shopian in Kashmir and action has been taken on the basis of a complaint from the college management.

"We received information that three students hailing from Kashmir studying at the KLE Institute of Technology had raised slogans supporting Pakistan. They had made a video about it which has gone viral. Immediately our team headed by Inspector Gokul Road station went to the spot and arrested them," Hubli-Dharwad Police Commissioner R Dileep said.

Right wing activists, including those from Bajarang Dal who had gathered near the college, demanded stringent action against the three.

As the students were being taken to the police station with their faces covered, an activist tried to attack them, but police escorted them safely.

The FIR has been lodged under IPC sections relating to sedition and affecting communal harmony, the official said.

"We are investigating, and whatever comes out as per evidence, law and facts, we will take further action. We will look into their background, whether anyone has tried to mislead them," Mr Dileep said, adding that the arrest should not be seen as action against any particular community or region.

According to officials, the selfie video of the three has gone viral as they posted it on WhatsApp. In the video one of them can be purportedly seen initially uttering something with background music on, after which they chant ''Azadi'' one after the other. Then joining chorus to the music that is playing, they purportedly say "Pakistan Zindabad."

The music they played is said to be Pakistani military's media wing, the Inter-Services Public Relations (ISPR) song, which police said needs to be ascertained.

The video seems to have been recorded at the college hostel, where the students were put up. College principal Basavaraj Anami said the college has given complaint to the police and the students will be suspended.

The students were admitted under central quota and two are doing their first year civil engineering, while the other is a third year student in the same stream, he said.

According to him, the three had made the video and posted it on WhatsApp.

"It came to our notice in the morning, following which I called the students immediately to my office, and informed the police," the principal told reporters.

"In the video, they have purportedly shouted pro-Pakistan slogans allegedly in the backdrop of the Pulwama attack anniversary yesterday," he added.

Union minister Pralhad Joshi, who hails from the district, described the act unfortunate and demanded strict action against those involved.