Unable to withdraw money for exam fees, college student hangs self

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Jan 29: Ramesh Jarkiholi on Tuesday demanded that he and all the newly elected MLAs, who won the bypolls after defecting from the Congress and JD(S), be inducted into the cabinet — likely on January 31 — as promised by chief minister BS Yediyurappa.

"We are hoping all 11 MLAs will be made ministers," Jarkiholi said. "That is what the BJP and the CM promised us and we hope they will keep their promise." This is the first time Jarkiholi has spoken in public on cabinet berths, ever since reports surfaced of the party high command not being in favour of inducting all the turncoats into the council of ministers.

Jarkiholi also said fellow rebel AH Vishwanath should be given a ministerial berth.

Vishwanath, formerly of the JD(S), had lost the bypolls. Jarkiholi said the rebellion would not have succeeded had it not been for Vishwanath.

"Those of us who rebelled against the JD(S)-Congress coalition government got a shot in the arm when Vishwanath supported us," Jarkiholi said. "It is imperative that we support him," he said, even as he sought to distance himself from comments made by newly-elected MLAs ST Somashekar and D Sudhakar, who said Vishwanath cannot demand a ministerial post.

Meanwhile, the BJP issued another deadline — January 31 — to expand the cabinet. "In all likelihood, cabinet expansion will take place on Friday," said an aspirant for a berth. But several BJP functionaries are skeptical of meeting the new deadline.

"Till now, the CM has not been given the green signal by the high command. This is all I can say," said a senior minister in Yediyurappa’s cabinet, while insisting he wouldn’t be surprised if the exercise was postponed till the Delhi elections are over.

Former minister and independent R Shankar, who along with Mahesh Kumatalli and Shrimant Patil accompanied Jarkiholi to a trip to Nanjangud, Mysuru district, has upped the pressure on Yediyurappa to field him in the bypoll to the lone vacant council seat. "I am confident the CM and the BJP will honour promises made to me," Shankar said.

The former minister had joined the BJP during the rebellion, but was not given a ticket to contest the bypolls.

In Chikkamagaluru, deputy chief minister Govind M Karjol insisted he is prepared to step down if needed to enable new entrants into the cabinet. "I’m a disciplined solider of the party. If the BJP directs me to submit my resignation, I will do so and return my official car and take a bus to Bengaluru," Karjol said. He said anyone who doesn’t respect the party line will not grow. "It is imperative to toe the party line," he said.