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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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Kalaburagi, Feb 6: The State government will take steps to ensure that Kannada as a language is taught in all private schools, Chief Minister B.S. Yediyurappa announced today at the 85th Akhila Bharata Kannada Sahitya Sammelana in Kalaburagi.

This comes in the wake of the demand by some Kannada activists for making Kannada medium compulsory in all schools in the State. Sammelana president H.S. Venkatesh Murthy, who spoke after the Chief Minister, also made this demand.

The Chief Minister said “We are committed to putting in place a series of steps to see that Kannada is taught in all schools, aided and private, as a language. Kannada should be taught as the first or second language. We will also take steps to strengthen government schools. However, the government alone cannot do much. The community and parents should offer support to make sure that government schools provide quality education to all.”

To inculcate the spirit of scientific inquiry, the State government is setting up mobile planetariums. This will increase the interest of children in space technology and India’s efforts in space exploration.

The government is committed to protecting the interests of the State in Mahadayi and other river water disputes. It will take the border row issue, based on the Mahajan Commission report pending in the Supreme Court, to its logical end.

The government will also address backwardness and related issues. It will make sure that adequate funds are allocated to the development of Kalyana Karnataka. Among other things, it will establish a hostel for students from Kalaburagi region in Bengaluru. Land has been allotted in Nagarabavi for the hostel that can accommodate around 200 students. The government has decided to celebrate Kalyana Karnataka Utsav once every two years. This will showcase the culture of the region.

“We are working towards forging sentimental and emotional unity of the State other than unity based on language or administration. Our dream is to see that Karnataka remains a homogeneous unit with equality and equal opportunity for all,’’ the Chief Minister added.

Kambar bats for technology

Chandrashekar Kambar, Sahitya Akademi president and former president of the Akhila Bharata Kannada Sahitya Sammelana, favoured effective implementation of technology in administration and for universal use of Kannada in computing and e-governance.

Speaking at the Sammelana inauguration, he said “Several years ago, at the insistence of writer Poornachandra Tejaswi, I appealed to the State government to give a push to Kannada computing. We were convinced that no language can survive without the use of modern technology and use of the language in computers. The Department of Kannada and Culture, headed by then director Manu Baligar, released ₹2 crore for the project. The work began in earnest and teams of technologists came up with software and fonts. Some departments started using Kannada software. But this work has stopped or slowed down at some level. I appeal to Chief Minister B.S. Yediyurappa to continue the work and ensure that computerised Kannada is used at all levels of government and in e-governance.’’

Supports dubbing

Mr. Kambar batted for content dubbing of informative TV channels in Kannada. Channels such as Discovery and History produce good quality content that can be educative and informative. They are very useful for children. These channels are now available in Tamil, Telugu and Hindi and some other Indian languages. But they are not available in Kannada. That is because some people in the film industry are opposing dubbing. Such opposition is not good. Informative channels are our window to the world and allowing dubbing will enhance our knowledge base. There is no merit in not allowing dubbing. I appeal to C.T. Ravi, Minister for Kannada and Culture, to allow dubbing in Kannada, he said.

Mr. Kambar favoured primary education in the mother tongue of the child and urged the State government to introduce universal and compulsory education in Kannada medium in all schools. “This will help preserve our culture. Nothing else can,’’ he said.

He blamed the East India Company administration for inculcating a craze for English education among the people. “The introduction of English education by the British was strongly welcomed by the masses in India as they had been denied the opportunity for education for millenia. The deprived classes and Dalits who had not been exposed to education till then, were excited about the opportunity. However, along with English education, the British were successful in introducing inferiority in our minds. We are yet to escape from this inferiority complex.”

Quoting from Greek mythology, Mr. Kambar said that Hercules had killed his children and relatives in a fit of alcohol-induced rage. “We should not behave like that. We may be very strong, but we should not kill our mother tongue, in our power-induced rage,’’ he said.

Bengaluru, Apr 30: Four ministers of Karnataka have gone into self-quarantine after they got here in touch with a video journalist of native channel who has examined optimistic for COVID-19. The listing contains state’s Deputy Chief Minister Dr Ashwath Narayan.

All 4 introduced the quarantine on Twitter.

Mr Narayan, dwelling minister Basvaraj Bommai , medical training Minister Dr. Sudhakar and tourism minister CT Ravi tweeted to say that they’ve examined detrimental for coronavirus however will likely be beneath self-quarantine.

They mentioned they got here in touch with a video journalist from a neighborhood tv channel  who was discovered COVID-19 optimistic on April 24. He had met the ministers between April 21 and April 24.

At least 40 different contacts of the video journalist, together with his household and journalists from numerous media retailers have been quarantined, reported news agency.

Earlier this month, Gujarat Chief Minister Vijay Rupani put himself in quarantine after an MLA who attended a gathering with him turned out to be coronavirus-positive.

Karnataka to date had 532 circumstances of coronavirus. Of them, 215 sufferers recovered and 20 sufferers died.

Earlier immediately, the state authorities determined to chill out lockdown restrictions in plenty of districts the place the coronavirus has not had a serious affect. The authorities is permitting industries to operate in these areas with sure circumstances.

The listing contains spots in Chamarajnagar, Koppal, Chikmagaluru, Raichur, Chitradurga, Hassan, Shivamogga, Haveri, Yadgir, Kolar, Udupi, Davanagere and Kodagu districts.

Manufacturing will likely be allowed within the particular financial zones in these districts and standalone outlets exterior municipal limits will likely be allowed to operate.