Suma Sourabha' awards conferred

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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: On the first day of 2020, Bajpe Police became somewhat of a Guardian Angel for a college student, who was wandering around the city in the wee hours of Wednesday, convincing and escorting him to his home safely, after coming to know about his residence.

According to Bajpe Police Probationary Sub-Inspector Anita Nikkam and Police Officer Devappa Hosamani, they noticed a youth, hailing from Handelu in Todaru and studying in a college at Moodbidri, wandering at around 0245 hrs.

When asked about his whereabouts, the boy did not respond initially. However, police managed to collect his address and his mother's phone number after half an hour of interrogation.

Bengaluru, Jan 15: The Indian startups secured 12.7 billion in funding last year -- a 15% growth compared to 2018 - and Bengaluru startup community topped the list, with securing $5.3 billion across 267 deals, a new report said on Tuesday.

In total, the Indian startups attracted 766 deals in 2019, taking total deal count between 2014-2019 to 5,011, said DataLabs by Inc42 in its annual startup funding report.

Sequoia took the top spot as the most active VC in 2019 with 53 deals, followed by Accel that participated in 38 deals. Blume Ventures, Matrix Partners and Tiger Global were in the top five VCs in 2019.

"The Indian startup economy is entering new decade with over $58 billion in fundraising and 2,984 funded startups between 2014-2019," the findings showed.

With an average of $21 million, the ticket size value of funding increased by 15% in 2019.

Ecommerce and fintech -- with $2.6 billion funding each -- took the top slot with 93 deals and 125 deals, respectively.

"Ecommerce continued to remain at the top by the end of 2019. The growing investor confidence towards sub-sectors such as vertical ecommerce, social commerce and private label businesses is one major factor for ecommerce maintaining its lead," a DataLabs spokesperson said in a statement.

According to the estimates, the funding amount and deal count in 2020 will be around $12.6 billion at a 1% decline from 2019.

"Nevertheless, the investment activity is expected to rise in 2021," said the report.

The data suggests that 2019 had lowest number of startups funded (664) in the last five years, with seed-stage funding deals dropping by 53%, compared to 2016.

With $252 million in funding, seed-stage deal value fell by 44% (compared to 2018) as only 306 seed funding deals were recorded, the report said.

The enterprise tech had a blockbuster year with total funding of $1.15 billion across 114 deals in 2019. The sector recorded a 49% surge in total funding amount, compared to 2018.

The Indian startup economy saw 275 unique VCs participating in funding in 2019, said the report.