DKSC celebrates 20th anniversary; clerics lay emphasis on education

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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 18: Virtually defending the Gowda family for conducting a marriage reportedly defying lockdown restrictions, Chief Minister B S Yediyurappa on Tuesday said it was performed in a simple manner and well within their limits, "for which they are to be congratulated."

"All the necessary permissions were given and the marriage was performed in a simple manner. There is no need to discuss about it. They had done it well within their limits for which I congratulate them," Yediyurappa said to a query from reporters during the post-COVID-19 briefing.

Scores of people had thronged a farmhouse on Friday to get a glimpse of the wedding of former Prime Minister and JD (S) supremo, H D Deve Gowda's grandson Nikhil Kumaraswamy, ignoring appeals not to visit the venue in view of the ongoing lockdown to check the COVID-19 outbreak. Nikhil, son of former Chief Minister H D Kumaraswamy, tied the nuptial knot with Revathi, the grand-niece of former Karnataka housing minister M Krishnappa.

The marriage was solemnised at Kumaraswamy's Kethaganahalli farmhouse at Bidadi in the neighbouring Ramanagara district, a JD(S) stronghold. Kumaraswamy had taken to Twitter after the marriage, thanking his party MLAs, leaders and workers for staying away from the event and blessing his son from their houses. In a series of tweets, he had said social distancing was maintained and all precautionary measures were taken throughout the event.

BJP had hit out at the JD(S) first family for flouting the norms, alleging that at least 150 to 200 vehicles were given permission to attend the event, that too at at time when social workers wanting to serve the badly affected poor people were not being allowed to ply any form of transport JD(S) leader N H Konareddi and MLC T A Sharavanna had denied the charges, saying the union government guidelines had been followed and that social distancing was maintained.

Jul 6: At least 8 lakh Indians may be forced to leave Kuwait as the country's legal and legislative committee has approved a draft expat quota Bill, reported.

The Bill, which states that Indians should not exceed 15 percent of the population, was determined as constitutional by the National Assembly, local media reported.

It will soon be transferred to the respective committee so that a comprehensive plan is created.

Expats account for 30 lakh of Kuwait's 43 lakh population. Indian community constitutes the largest expat community in Kuwait, totalling 14.5 lakh.

The move comes as the number of Covid-19 cases has spiked in the country, with 49,000 cases being reported so far.