IRCTC Shares Climb 5% as Select Passenger Train Services to Resume from Tomorrow

Srinagar, Jun 19: Suspended Jammu and Kashmir DSP Davinder Singh, arrested while ferrying two Hizb-ul-Mujahideen terrorists in a vehicle on the Srinagar-Jammu Highway earlier this year, was granted bail by a Delhi court on Friday, his lawyer said.

Singh and another accused in the case - Irfan Shafi Mir - were granted the relief by the court in a case filed by special cell of Delhi Police, noting that the probe agency failed to file charge sheet within 90 days from his arrest, as prescribed under law, their lawyer M S Khan said.

The bail was granted on a personal bond of Rs 1 lakh and two sureties of like amount.

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.

New Delhi, Jan 10: The Supreme Court while hearing petitions challenging restrictions in Jammu and Kashmir on Friday stated that the right to access the internet is a fundamental right under Article 19 of the Constitution of India.

"It is no doubt that freedom of speech is an essential tool in a democratic setup. The freedom of Internet access is a fundamental right under Article 19(1)(a) of the Constitution," a two-judge bench headed by Justice N V Ramana stated while reading out the judgment.

The top court said that Kashmir has seen a lot of violence and that it will try to maintain a balance between human rights and freedoms with the issue of security.

It also directed the Jammu and Kashmir administration to review the restrictive orders imposed in the region within a week. “The citizens should be provided highest security and liberty,” the apex court added.

The top court made observations and issued directions while pronouncing the verdict on a number of petitions challenging the restrictions and internet blockade imposed in Jammu and Kashmir after the abrogation of Article 370 in August last year.

The Supreme Court had on November 27 reserved the judgment on a batch of petitions challenging restrictions imposed on communication, media and telephone services in Jammu and Kashmir pursuant to revocation of Article 370.

The court heard the petitions filed by various petitioners including Congress leader Ghulam Nabi Azad and Kashmir Times editor Anuradha Bhasin.

The petitions were filed after the central government scrapped Article 370 in August and bifurcated Jammu and Kashmir into two Union Territories -- Jammu and Kashmir and Ladakh. Following this, phone lines and the internet were blocked in the region.

The government had, however, contended that it has progressively eased restrictions.