Madhya Pradesh CM Shivraj Singh Chouhan tests covid positive

Jan 17: President Ram Nath Kovind, on Friday, dismissed Nirbhaya convict Mukesh Singh's mercy petition, according to multiple media reports.

Mukesh Singh - one of the four convicts in the Nirbhaya gang rape and murder case had filed a mercy petition on Tuesday after Supreme Court dismissed curative petitions filed by him and Vinay Sharma (another convict).

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MHA forwards mercy petition of Nirbhaya convict to President; recommends rejection

New Delhi, Jan 17: The Union Home Ministry on Friday forwarded to President Ram Nath Kovind the mercy petition of one of the convicts in the Nirbhaya gangrape case, recommending its rejection, officials said.

Mukesh Singh, one of the four death row convicts in the 2012 Nirbhaya gangrape and murder case, had filed the mercy petition a few days ago.

"The Home Ministry has forwarded the mercy petition of Mukesh Singh to the President. The ministry has reiterated the recommendation of the Lieutenant Governor of Delhi for its rejection," the official said.

The Delhi LG had sent the mercy petition of Mukesh to the Home Ministry on Thursday, a day after the Delhi government recommended its rejection.

The four convicts -- Mukesh Singh (32), Vinay Sharma (26), Akshay Kumar Singh (31) and Pawan Gupta (25) were to be hanged on January 22 at 7 am in Tihar Jail. A Delhi court had issued their death warrants on January 7.

However, the Delhi government had informed the high court during a hearing that execution of the convicts will not take place on January 22 as a mercy plea has been filed by Mukesh.

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 7: When a reign of terror was unleashed by "masked goons" in the Jawaharlal Nehru University (JNU) on Sunday, Delhi Police registered two cases against varsity students union president Aishe Ghosh, who was badly injured in the attack, within a span of five minutes.

The registration of cases on two separate complaints against Ghosh and other students filed by JNU security department on January 3 and January 4 were registered on Sunday night when the violence was on, triggering questions about the motive behind the timing.

While the FIRs against Ghosh and others were registered between 8.44 pm and 8.49 pm after the JNUSU president was admitted to AIIMS, an FIR on the Sunday violence was registered on Monday at 5.36 am against unknown persons. The Sunday violence case has been transferred to Crime Branch for further investigations.

Questions are being raised over the registration of FIRs on Sunday while the complaints were filed on the previous days. Students allege that it was an afterthought from the police and authorities, as a nationwide outrage erupted as soon as the violence was reported.

Delhi Police is under attack for not coming to the aid of students targeted by the mob of ABVP activists armed with iron rods and sticks who went on a rampage on the campus. While no single person in the Sunday violence was arrested, the police are also accused of being a "mute spectator" by allowing the rioters to leave the campus without being arrested.

In its complaints, the JNU Security Department has alleged that Ghosh and others entered into a verbal and physical scuffle with security guards, including women, when officials tried to open the Centre for Information System (CIS) that was blocked by students protesting against the fee hike and registration process.

While the January 3 complaint claims that the students switched off the power supply to the CIS and evicted staff forcefully, the January 4 complaint alleged that they damaged the information system.

They also claimed the students damaged the servers, made it dysfunctional, severely damaged optic fibre cables and broke the biometric system in the CIS. The complaint also cited a Supreme Court order that prevented any protest within 100 metres of Administration Block and claimed the students violated the direction.

The FIR filed on Sunday violence on the basis of the statement of Inspector Anand Yadav said that the first phase of violence was reported at 3.45 pm when "40-50 unidentified" people who had "covered their faces" attacked students in Periyar Hostel and the situation was brought under control.

However at around 7 pm, "50-60 people with rods in their hands" targeted students in Sabarmati Hostel in which students were attacked and public property destroyed.

The FIR said that students were injured but skipped the mention of the attack on teachers, who were injured. At least two faculty members Sucharita Sen and Ameet Parameswaran were taken to AIIMS while several other teachers suffered minor injuries.