SC asks to conduct examination of witnesses in Tarun Tejpal case

New Delhi, Jun 18: For the 12th consecutive day, state-run oil marketing companies (OMCs) has increased the price of fuel on Thursday.

The price of petrol is increased by 53 paise a litre while that of diesel by 64 paise a litre.

Petrol and diesel will now cost Rs 77.81/litre and Rs 76.43/litre respectively in Delhi.

Notably, oil marketing companies have been adjusting retail rates in line with costs after an 82-day break from rate revision amidst the COVID-19 pandemic. These firms on June 7 restarted revising prices in line with costs.

New Delhi, Mar 26: The total number of people who have been confirmed positive for COVID-19 in India has risen to 649 in India, including 593 active cases and 42 people who have been cured or discharged from hospitals, according to the recent update by the Union Ministry of Health and Family Welfare (MoHFW) on Thursday morning.
The death toll due to the novel coronavirus in the country has reached 13, the official data reported. There have been 3 more deaths due to COVID-19 reported in the country since last evening.
An 85-year-old woman in Gujarat died yesterday while with the passing away of a 65-year-old woman, Madhya Pradesh reported its first COVID-19 death. Tamil Nadu also reported its first death in the state yesterday due to the deadly infection.
According to report from the Indian Council of Medical Research (ICMR) India had tested 24,254 people as of 8 p.m. on March 25.
The country is now in its second day of a 21-day lockdown that was announced by the Prime Minister Narendra Modi on Tuesday to deal with the spread of coronavirus, saying that "social distancing" is the only option to deal with the disease, which spreads rapidly.
The central government had on Wednesday announced that it will provide 7 kg ration to 80 crore people in India. The Centre also said that it has earmarked Rs 1.80 lakh crores for providing wheat at Rs 2 per kg and rice at Rs 3 per kg
"Union Cabinet has decided to provide wheat at Rs 2 per kg which is worth Rs 27 per kg and rice at Rs 3 per kg which is worth Rs 37 per kg. A total amount of Rs 1 lakh 80 thousand crores is being spent for the cause. The amount will be given in advance to the states for the coming 3 months," Union Minister Sadananda Gowda said yesterday.
Those shops which are catering to essential services will continue doing so during the 21-day nationwide lockdown.

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.