Govt mulls to connect Madrasas to mainstream education

New Delhi, Jun 8: Delhi Chief Minister Arvind Kejriwal has gone into self-quarantine after developing sore throat and fever, and will get himself tested for COVID-19 on Tuesday, officials said on Monday.

They said the chief minister, who is also a diabetic, was feeling unwell since Sunday afternoon.

"He has mild fever and sore throat since Sunday afternoon. As advised by doctors, the chief minister will undergo COVID-19 test on Tuesday morning," officials said.

Officials said the CM had attended a Cabinet meeting on Sunday morning and thereafter, he did not attend any meeting.

The chief minister has been holding most of his meetings via video conferencing from his official residence for past two days.

This come as the number of coronavirus cases in the national capital crossed the 28,000-mark with 1,282 fresh infections while the death toll climbed to 812 on Sunday, a health bulletin issued by the Delhi government said. According to the health bulletin, the total number of COVID-19 cases in Delhi rose to 28,936 with 1,282 fresh cases.

A total of 51 fatalities were reported on June 6, the bulletin said, adding that these lives were lost between May 8 and June 5. It, however, said the cumulative death figure refers to fatalities where the primary cause of death was found to be COVID-19, according to a report of the Death Audit Committee on the basis of the case-sheets received from various hospitals.

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.

Tirupur, Feb 20: Nineteen people died in a collision between a Kerala State Road Transport Corporation bus and a truck near Avinashi town of Tirupur district on Thursday morning here.

The bus was on its way to Ernakulam in Kerala from Bengaluru in Karnataka when the mishap occurred.

Deputy Tehsildar of Avinashi Town informed, "19 people that include 14 men and 5 women, died in the collision between the bus and the truck near Avinashi town."

The bodies have been taken to Tirupur government hospital.
Further details are awaited.