Udupi: ‘Immoral police’ chase away girls and boys from Delta Beach

Mangaluru, Apr 28: Trucks carrying fish loads from Kerala will not be allowed to enter Dakshina Kannada district as the authorities are not being able to control the rush in markets, state Fisheries Minister and district-in-charge Kota Srinivas Poojary said Monday.

The deputy commissioner has been instructed to restrict the entry of fish transport vehicles from outside the district forthwith, in view of the difficulty in maintaining social distancing at the markets identified in the district, the minister told reporters here.

The coastal district has to take more precautionary measures to fight COVID-19 as the number of positive cases have risen in the last couple of days, he said.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Jun 17: The Congress on Wednesday decided to field senior party leader B K Hariprasad and incumbent Naseer Ahmed as candidates for the coming legislative council polls in Karnataka.

"The Congress President Sonia Gandhi has approved the proposal for the candidature of B K Hariprasad and Naseer Ahmed as Congress candidates to contest the biennial elections to the Legislative Council of Karnataka to be elected by the MLAs," the AICC said in a release.

The election is necessitated as the term of seven MLCs- Naseer Ahmed, Jayamma, M C Venugopal, N S Bose Raju, H M Revanna (all Congress), T A Sharavana (JDS) and independent D U Mallikarjuna- will end June 30.

Polling will be held on June 29 to fill seven MLC berths, and June 18 is the last date for filing of nominations.

While the BJP is in a position to win four out of seven seats, the Congress can win two and the JD(S) one.

Twenty-eight valid votes of MLAs are required for each candidate to win.

Hariprasad’s candidature has been announced as his tenure in the Rajya Sabha is coming to end on June 25.

He has also served as general secretary of the party.

Naseer Ahmed, who is retiring as MLC on June 30, will be seeking another term.

According to state Congress president D K Shivakumar, more than 200 aspirants have sought tickets for the two seats that the party can win in the legislative council polls.