Siddaramaiah hands over gifted watch to Assembly Speaker

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Mangaluru, Jul 19: Two flights with 346 stranded Kannadigas from Sharjah and Dammam landed at Mangalore International Airport (MIA) on Saturday night.

MIA officials said on Sunday that the chartered flight from Dammam landed with 178 stranded people, while an Air India flight from Sharjah landed with 168 stranded passengers under the 'Vande Bharat Mission'.

All the passengers on their arrival underwent health checkup and were sent for seven days institutional quarantine. They will undergo swab tests during the quarantine period, health officials said.

Bengaluru, July 23: The High Court of Karnataka has directed the state government to formulate Standard Operating Procedure (SOP) for child protection, particularly for cases of child pornography and child missing.

A division bench comprising Chief Justice Abhay Shreeniwas Oka and Justice M Nagaprasanna passed a detailed order and asked the state government to submit compliance within three months.

The division bench passed the order on two PILs, including a suo motu litigation registered in 2018. The PILs were registered to ensure effective implementation of the directions of the Supreme Court on the Juvenile Justice (Care and Protection of Children) Act, 2015 (JJ Act).

The bench observed that in normal courses, courts do not issue writ of mandamus to the legislature on rule-making aspects. However, when the failure of the state is demonstrated under exceptional circumstances, courts can issue directions. The bench directed the state government to expedite the rule-making process to ensure proper implementation of the JJ Act.

The bench expressed displeasure on the insensitive police investigation in cases of child pornography. “The police machinery did not show the sensitivity expected from it while dealing with cases of alleged child pornography. Therefore, it will be appropriate if the state issues SOP or guidelines for dealing with cases of child pornography so that proper investigation is carried out in such cases. As we are directing the formation of SOP for dealing with child pornography cases, the state is also directed to formulate guidelines on child missing cases,” the bench said.

The bench had been issuing several directions since 2018 and has also been monitoring police investigations. The court observed that while the state government has incorporated several directions, some issues still remain unaddressed.

The bench directed the government to have dedicated staff for the Directorate of Integrated Child Protection Scheme considering the sensitive nature of work.

On working of Juvenile Justice Boards (JJB), the court asked the Registrar General of the Karnataka High Court to issue directions to the principal magistrates of all the JJBs in the state to sit on all working days for a minimum of six hours a day. 

The high court directed the state to exercise the rule-making powers for obtaining an annual report from the State Commission for Protection of Child Rights.