Will not quit JDS; my son Prajwal too has bright future in party: Revanna

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Feb 7: The Bruhat Bengaluru Mahanagara Palike (BBMP) ordered the destruction of a tilted building in the city after evacuating about 150 people from 35 families in the vicinity, an official said on Thursday.

"The top portion of the building has been destroyed 70 per cent today (Thursday). Later, the destruction contractor will allow machines to be used," Bruhat Bengaluru Mahanagara Palike (BBMP) Yelahanka joint commissioner Ashok said.

Located on Vinayaknagar Street in Hebbal's Kempapura, the five-storey building being used as a hostel for boys got tilted on Wednesday morning, spreading panic in the neighbourhood.

Though the tilted building owned by one Rahul, a jeweller, was a sound structure, Ashok said a neighbour, Babu, hired a JCB excavator to dig deep beside the affected structure to build his own structure.

"Babu not only dug very deep but also damaged the foundation pillar of the tilted building, weakening the structure and leading to its slant," said Ashok.

Babu has been booked and arrested even as the police are on the look-out for the JCB owner and operator.

The titled building erected five floors unauthorisedly and falls into the B Khata category. It was constructed without the civic body's plan, said Ashok. 

A Khata and B Khata denote the two types of khatas that exist under BBMP. Khata is a document which shows a property owner having an account with the municipality to pay taxes. An A Khata denotes that the building owner has paid relevant property taxes and that the building conforms to building bylaws and government rules. A B Khata denotes that the building is in violation of government regulations regarding properties in Bengaluru, even when the civic charges for the property have been cleared by the owner.

"As per procedure, we issue notice, but such constructions are rampant in the city. Under the BBMP jurisdiction, there are 15 lakh B Khata structures," said Ashok.

For all B Khata sites, the civic body does not give any plan and there is no proper control on them, he said.

Ashok said the case to regularise the B Khata buildings to A Khata buildings is currently pending in the Supreme Court.

Luckily, no injury or loss of life has been reported from the tilted building.

The civic body arranged alternative accommodation for the affected families, but most of them chose to stay with their relatives, said Ashok.

Bengaluru, Jun 17: Chief Minister B S Yediyurappa has directed Minorities Department officials to take steps for tabling the Karnataka Lokayukta report on alleged irregularities in wakf properties in Karnataka, during the next session of the State legislature.

Following the Anwar Manipaddi report on alleged irregularities in wakf properties, the Lokayukta conducted the probe. The Siddaramaiah government rejected both the Anwar Manipaddi report and the Lokayukta report.

The Chief Minister issued the directions to officials during a review of the department works on Tuesday, said an official press release. The Lokayukta reportedly named several Congress leaders and senior officers in the scam.

The Lokayukta conducted the probe and submitted the report containing 15 volumes to the State government during the Siddaramaiah government’s tenure.