Rains lash parts of Karnataka, bring smiles and tears

Belagavi, 12: Even though the investigation into the four abandoned country pistols that were recovered by the Karnataka police on the outskirts of Waghawade village in Belagavi taluk last weekend did not make any headway, the police are verifying if the weapons had been used by the assassin of Gauri Lankesh for training.

Four country pistols were found abandoned on the outskirts of Waghawade on Sunday. Locals informed that the police had taken the weapons for inspection.

Prima facie it appeared that the weapons were rusted and had not been used for long. Cases had been registered against unidentified persons and investigations were in progress.

After reports that the weapons could have been used for training by the assassin of Gauri Lankesh in the forests in Khanapur, a few kilometres away from the spot wherein they were found, police have been looking into this angle too.

Sources said the condition of the weapons indicated that they have not been used for decades but to allay doubt all aspects were being looked into.

Mangaluru/Udupi, May 22: Two prominent Qadhis of coastal Karnataka today declared that Eid al-Fitr will be observed in the region on Sunday, May 24.

Twaqa Ahmed Musliyar, the Qadhi of Mangaluru and Ibrahim Musliyar Bekal, Qadhi of Udupi Samyukta Jamaat in their separate statements made this announcement. 

The decision was taken as there was no news of new moon sighting in the coastal region today.

Ullal Qadhi Qurrathussadath Seyyid Fazal Koyamma Thangal Al Bukhari also announced that 24th May is first of Shawwal and Eid al Fithr will be celebrated on that day.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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