Can anyone dare to make film on Prophet Muhammad, asks union minister

London, May 20: The current physical distancing guidelines of 6 feet may be insufficient to prevent COVID-19 transmission, according to a study which says a mild cough in low wind speeds can propel saliva droplets by as much as 18 feet.

Researchers, including those from the University of Nicosia in Cyprus, said a good baseline for studying the airborne transmission of viruses, like the one behind the COVID-19 pandemic, is a deeper understanding of how particles travel through the air when people cough.

In the study, published in the journal Physics of Fluids, they said even with a slight breeze of about four kilometres per hour (kph), saliva travels 18 feet in 5 seconds.

"The droplet cloud will affect both adults and children of different heights," said study co-author Dimitris Drikakis from the University of Nicosia.

According to the scientists, shorter adults and children could be at higher risk if they are located within the trajectory of the saliva droplets.

They said saliva is a complex fluid, which travels suspended in a bulk of surrounding air released by a cough, adding that many factors affect how saliva droplets travel in the air.

These factors, the study noted, include the size and number of droplets, how they interact with one another and the surrounding air as they disperse and evaporate, how heat and mass are transferred, and the humidity and temperature of the surrounding air.

In the study, the scientists created a computer simulation to examine the state of every saliva droplet moving through the air in front of a coughing person.

The model considered the effects of humidity, dispersion force, interactions of molecules of saliva and air, and how the droplets change from liquid to vapour and evaporate, along with a grid representing the space in front of a coughing person.

Each grid, the scientists said, holds information about variables like pressure, fluid velocity, temperature, droplet mass, and droplet position.

The study analysed the fates of nearly 1,008 simulated saliva droplets, and solved as many as 3.7 million equations.

"The purpose of the mathematical modelling and simulation is to take into account all the real coupling or interaction mechanisms that may take place between the main bulk fluid flow and the saliva droplets, and between the saliva droplets themselves," explained Talib Dbouk, another co-author of the study.

However, the researchers added that further studies are needed to determine the effect of ground surface temperature on the behaviour of saliva in air.

They also believe that indoor environments, especially ones with air conditioning, may significantly affect the particle movement through air.

This work is important since it concerns safety distance guidelines, and advances the understanding of the transmission of airborne diseases, Drikakis said.

Mumbai, Jan 19: After Kerala and Punjab, the Maha Vikas Agadi (MVA) government is also mulling over a resolution against the Citizenship (Amendment) Act, 2019 in Maharashtra Assembly.

Speaking to news agency, Congress spokesperson Raju Waghmare said: "Our senior party leader Balasaheb Thorat has also shared his stand on the CAA. Even Chief Minister Uddhav Thackeray has said that we are against the CAA. As far as the resolution against CAA is concerned, our senior leaders of MVA will sit together and decide."

If this happens, then Maharashtra will be the third state to pass a resolution against CAA, which grants citizenship to non-Muslim refugees from Pakistan, Afghanistan, and Bangladesh, who came to India on or before December 31, 2014.

Emphasising that CAA is 'unconstitutional,' senior lawyer and Congress leader Kapil Sibal has said that every state Assembly has the constitutional right to pass a resolution and seek CAA's withdrawal.

He added that it would be problematic to oppose the CAA if the law is declared to be 'constitutional' by the Supreme Court.

"I believe the CAA is unconstitutional. Every State Assembly has the constitutional right to pass a resolution and seek its withdrawal. When and if the law is declared to be constitutional by the Supreme Court then it will be problematic to oppose it. The fight must go on!" Sibal tweeted.

Earlier speaking at the Kerala Literature Festival on Saturday, the Congress leader had said that constitutionally no state can say that it will not implement the amended Citizenship Act, as doing so will be "unconstitutional".

Kerala government has also approached the Supreme Court against the CAA following the passage of a resolution against it in the state Assembly.

Punjab chief minister Amarinder Singh has also announced that the Congress state government is going to join Kerala in the Supreme Court in the case.

New Delhi, Jun 8: Union Human Resource Development Minister Ramesh Pokhriyal Nishank has said that CBSE board results can be declared by August 15. The results of both class 10 and 12 will be declared at an interval of just a few days.

However, the decision to open schools will be taken after August keeping in mind the current COVID-19 situation. At present, the Ministry of Human Resource Development has not set any date for reopening schools.

Nishank said during a discussion "We hope that the results of both 10th and 12th class will be declared by August 15. These include the results of previous exams and the results of examinations in July."

On the issue of reopening of schools, Nishank said "after August the process of opening schools will be started."

A final decision in this regard will be taken only after assessing the prevailing conditions. According to the HRD ministry, after August, new sessions will also start in universities.

Meanwhile, the Arvind Kejriwal government in Delhi has also written to the HRD ministry on the subject of reopening schools. Delhi Education Minister Manish Sisodia said in the letter, "Delhi Chief Minister Arvind Kejriwal said some time ago that we have to learn to live with coronavirus. So it would be better to open schools with proper safety measures."

Sisodia said that first of all, we have to assure every child that they are important to us. Everyone has equal rights over the physical and intellectual environment of his school. Education cannot progress beyond online classes only. It would be impossible to pursue education only by calling older children to school and keeping younger children at home.

Several private schools have also suggested measures to the HRD ministry to open schools and safety in schools during this period. However, the ministry is not in a hurry to reopen schools at present. According to senior officials of the ministry, at present, preparations are being made to conduct the remaining board exams of class 10 and 12 between July 1 and 15.

After the examinations, the first priority is to declare the results. Only then can the process of reopening school colleges begin.