‘Modi’s Kedarnath show after campaign is poll code violation’: TMC complains to EC

May 18: The Central Board of Secondary Education (CBSE) on Monday announced the date sheet for the pending class 10 and 12 board exams, which will now be held from July 1 to 15.

The exams were postponed due to the nationwide lockdown imposed on March 25 to contain the spread of COVID-19.

The Class 10 board exams are pending only in the North East Delhi.

"The Class 10 exams will be staggered on four dates, starting July 1. The first paper will be Social Science, while the next day students will be required to appear for the Science exam,” said Sanyam Bhardwaj, the Controller of Examination, CBSE.

“On July 10, exams will be conducted for both courses of Hindi and on July 15 for both courses of English," he said.

On health guidelines for students, Bhardwaj said that they will be required to carry their own sanitiser bottles and wear masks to examination centres.

"Parents will have to ensure that their ward is not sick and candidates will have to strictly follow physical-distancing norms," he said.

For Class 12, the Home Science exam will be held on July 1, followed by both courses of Hindi the next day.

The Class 12 Business Studies exam has been scheduled for July 9, followed by Biotechnology on July 10 and Geography on July 11.

New Delhi, Mar 11: A doctor in Kerala on Tuesday alleged that she was sacked by the management of the private clinic she was working with for informing authorities about a non-resident Indian (NRI) patient who reportedly declined to undergo the mandatory check for coronavirus.

Dr Shinu Syamalan said the patient had come to the clinic recently with suspected symptoms of the virus.

"When he was asked whether he had visited any foreign countries, he said he was coming from Qatar. But he had not reported to the Health department about his foreign trip," she said.

When he was directed to inform about his foreign travel to the state Health Department, which has been monitoring people coming from abroad for the virus, he refused and said he was going back to Qatar, she told reporters.

Concerned over the health of the person who had high fever, Ms Syamalan informed health and police authorities.

"Officials who let the patient go abroad do not have any problem, but I have become jobless," she posted on social media.

She alleged she was sacked by the management of the clinic for reporting the matter to police and informing the public about the incident through social media and through television.

"The argument of the management is that no one would turn up for treatment in the clinic if they come to know that it was visited by patients with suspected symptoms of Coronavirus," she said.

There was no immediate reaction from the management of the private health clinic.

Official sources said the District Medical Officer (DMO) at Thrissur has complained to the collector against Shinu Syamalan accusing her of defaming health officials.

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.