Mohammed Shafi Armar from Bhatkal killed in US airstrike in Syria

Mangaluru, Mar 16: As a precaution against the spread of Covid-19, the Karnataka State Road Transport Corporation (KSRTC) on Monday decided to cut down its premium, non-AC sleeper, Rajahamsa and express bus services from Mangaluru to Bengaluru and Kasaragod following poor patronage.

The cut down in services is as per the direction of KSRTC's Central office that wants bus services to be operated on priority.

KSRTC Mangaluru Divisional Controller S N Arun said that the corporation has decided to cut down 40 trips to Bengaluru. Concerning Kasaragod, it has reduced the number of trips from 40 to 35. "These include a reduction in services to Mysuru and Dharmasthala also," he added.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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 28: Karnataka Chief Minister BS Yediyurappa on Tuesday warned the officials that strict action will be taken against the officials, who demand bribe from beneficiaries in various schemes.

Speaking after distributing the regularising letters to around 1000 people belonging to the Backward class in government lands, Mr Yediyurappa said the government was itself coming to the doorsteps of people.

“Officials will visit door to door to distribute the regularization letters and if any officials demand bribe bring to the notice of the government which will take action against such persons,” he said.