Youth thrashed, arrested, hospitalised after he attacks policemen at Melkar

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Apr 16: In order to bring uniform act for all universities in the state under the Karnataka University Act 2017, the state government formed a committee in this connection.

As per the instruction of deputy chief minister Dr C N Ashwath Narayan, higher education department has issued an order to form a committee under the chairmanship of R Vasudeva Athre.

The other members are former Bengaluru university Vice-Chancellor Prof B Thimmegoda, IIT Bengaluru director Prof Sadagopan, Srusti institute of arts and design technology Geetha Narayan Srusti, centre of educational and social studies president Dr M K Sridhat and state higher education parishad Executive Director Dr M S Kori, co-member of the committee.

Mangaluru, Jun 3: Mangaluru MLA and former minister U T Khader has urged the state government and Dakshina Kannada district administration to take steps to facilitate the return of Indians stranded in foreign countries amid covid lockdown.

A delegation comprising Mr Khader, DCC President K Harish Kumar, and MLC Ivan D’Souza met District In-charge Minister Kota Srinivas Poojary and submitted a memorandum on Tuesday.

“Kannadigas who are working outside the state are in distress due to the lockdown. More than 50,000 people had uploaded applications on Seva Sindhu portal seeking permission to return to their villagers and are waiting for permission. With the authorities failing to take any decision, they are worried,” said the delegation.

The government should initiate measures to get them back and quarantine them, urged the delegation.

Mr Khader said, “Many workers stranded in foreign countries are eager to return home. The district administration should make arrangements to quarantine those returning from foreign countries and other states.

There are thousands of migrant labourers from Gujarat, Uttar Pradesh, Jharkhand and Bihar stranded in DK. They are waiting to return to their families. The state government should facilitate their return journey, the delegation urged.

MLC Ivan D’Souza said, “Assistance should be provided to private bus staff, beedi workers, tailors, garage labourers and street vendors who are in distress. The price of Covid-19 tests in private laboratories should be reduced.”

The delegation informed that after Wenlock Hospital was converted into the designated COVID-19 hospital, poor patients are facing many inconveniences. A portion of the hospital should be earmarked for treating other patients, they said.