Ramanath Rai was in BJP before joining Congress, claims former MLA

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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 8: In an operation, forest officials of Puttur has arrested two persons as many elephant tusks at Puduvettu in Belathangadi taluk of Dakshina Kannada.

Forest officials said on Wednesday the accused nabbed last night were identified as PK Dinesh from Madikeri and V Kumar from Hassan district.

Both were caught while trying to sell tusks the value of which was estimated to be lakhs.

Hubballi, Feb 16: Rs 72,000 crore investment proposals were received at the Invest Karnataka meet, here on Friday, for the states northern region, said an official on Saturday.

"About 50 foreign and domestic firms have proposed to invest Rs 72,000 crore in the northwest and northern regions of the state and a dozen companies signed agreements with us," state Industries Department Secretary Gaurav Gupta said.

Rajesh Exports, Bengaluru-based group, signed an agreement to set up a manufacturing unit at Dharwad to rollout electric vehicles and make lithium ion batteries.

"Rajesh Exports proposes to invest about Rs 50,000 crore for manufacturing electric cars and lithium ion batteries for the domestic and overseas markets. It will generate about 10,000 jobs," said Gupta.

Similarly, Sonali Power has signed a pact with the state nodal agency (Udyog Mitra) to set up a solar power plant at Davangere at a cost of Rs 4,800 crore, which will generate 2,100 direct jobs.

Chief Minister B.S. Yediyurappa claimed several firms had come forward to collectively invest Rs 1 lakh crore since the BJP government came into being in July 2019.

"Many Indian and foreign firms will sign agreements with the state government at the 3-day Global Investors meet in Bengaluru on November 3-5," Yediyurappa said at the 'Invest Karnataka' meet.

Noting that Karnataka was rich in natural and human resources, especially in high-tech and skilled workforce, Yediyurappa said investment opportunities were plenty in aerospace, automobiles, machine tools, electric vehicles and bio-technology besides information technology.

"About 40 global firms expressed interest to invest in the state at a roadshow held at Davos, Switzerland, on the margins of the World Economic Forum (WEF) meet on January 23," he said.

Under the new industrial policy, the state government will set up clusters to make toys at Koppal, textiles in Bellari, solar equipment at Kalaburagi and farm machinery at Bidar.

"We are committed to make North Karnataka a power house of industries for the region's development, with Hubballi-Dharwad as the growth hub," Yediyurappa said.