Mangaluru: Young poetess Mafazah Sharafuddin’s Labyrinths of Emotions released

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Jan 1: Led by two local MLAs belonging to Bharatiya Janata Party, dozens of people today forcibly stopped toll fee collection at Talapady toll gate on the outskirts of the city allowing vehicles plying between Karnataka and Kerala on the national highway 66 to travel without paying any fee for some time.

Mangaluru City South MLA D Vedavyasa Kamath and Mangaluru City North MLA Y Bharat Shetty, who led the workers, said that the Navayuga Udupi Tollway Pvt. Ltd. (NUTPL), the concessionaire of the about 90-km-long highway widening project between Talapady and Kundapura in Karnataka, had failed to complete the project since over a decade.

The service roads and two flyovers under the project remained uncompleted. Hence motorists were facing a hardship. Notwithstanding Nalin Kumar Kateel, Dakshina Kannada MP, arranging ₹56 crore loan to the NUTPL through Axis Bank to complete the prominent Pumpwell flyover in the city, the company had failed to complete it.

The MLAs said that they stopped the toll collection as a symbolic protest to bring pressure on the company to complete the project within this month.

The BJP workers who gathered near the toll gate around 7.30 a.m. forcibly removed the barricades and made the vehicles ply without paying the fee. The workers of the company managing the toll booth did not resist.

The BJP workers said that vehicles would ply without paying toll till about 6 p.m. If the company resumed the collection during the day on Wednesday, the party workers would again forcibly stop it on Thursday, they said.

Shivaprasad Rai, in-charge of toll collection of the company at Talapady, Hejmady and Sasthana on the same highway told The Hindu that the NUTPL collected about ₹7 lakh as toll fee daily at Talapady from over 12,000 vehicles. The loss on Wednesday could be about ₹4 lakh.

The project is being implemented under build, operate and transfer basis.

Bengaluru, May 30: People travelling to Bengaluru by flight or train must pay to get their Covid-19 tests done at designated private labs.

This is being done to improve the participation of private labs that have been approved by the Indian Council of Medical Research to do testing. Many of these labs are running at sub-optimal levels.

The new rule will also help the special categories of passengers and their attendants to leave early for home quarantine after giving the sample once the swab collection centres are established at airports and railway stations. The nodal officers at these places will coordinate in establishing the swab collection centres.

Each test will cost Rs 650 per sample. XCyton Diagnostics will cater to air passengers. Rail passengers will be tested at Neuberg Anand Reference Laboratory, Cancyte Technologies Pvt Ltd, Aster Labs, Narayana Hrudayalaya, Vydehi Hospital and Syngene International Ltd.