Udupi: Two schoolboys drown in river 

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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 5: Former Deputy Chief Minister G Parameshwara has said the Karnataka Congress has unanimously decided to appeal to the party high command regarding the appointment of KPCC President and Congress Legislature Party (CLP) leader in the state.

Speaking to reporters, the Congress leader said, "We have decided to gather the opinion of senior leaders regarding the selection of Karnataka Pradesh Congress Committee (KPCC) president and opposition leaders. We will appeal to the high command regarding the same. The party will decide its next course of action."

He made these remarks after a meeting of senior party leaders was held at Parameshwara's residence here on Saturday.

Adding that the Congress leaders discussed the current political scenario in the state, Parameshwara said: "We held a meeting to reiterate that we are not confused and we all are together."

"There has been no personal discussion on who should be the president," he said.

Earlier, KPCC president Dinesh Gundu Rao and former Chief Minister Siddaramaiah had tendered resignation from their respective posts owning moral responsibility for the party's poor performance in the recent by-polls.

Bengaluru, Jan 10: Karnataka Chief Minister BS Yediyurappa on Friday launched 'Sapthapadi', a mass marriage program in Bengaluru.

The state authorities will provide a mangalsutra worth Rs 40,000 and Rs 5,000 to the groom. They will also give Rs 10,000 to the bride after marriage.

The state government has also informed that the department has shortlisted some temples where the mass marriages will be held.

Yediyurappa also confirmed that the government will help communities like Muslim and Christians also to organise mass marriage as per their respective rituals.

According to the state government guidelines, issued last year in November, both parents of the couple should attend the ceremony if the duo wants to avail benefits of this offer but those who want to marry without their parent's permission do not stand a chance here.

Also, those wanting a love marriage will not be able to reap the benefits of the scheme. The plan is to conduct about 1,000 marriages in 90-100 temples.

The couples wanting to tie the knot are expected to register themselves 30 days before the scheduled date in the temple. Following which a list will be prepared.