India showed great character, says Kohli after series win against England

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.

The coronavirus can stay aloft for hours in tiny droplets in stagnant air, infecting people as they inhale, mounting scientific evidence suggests.

This risk is highest in crowded indoor spaces with poor ventilation, and may help explain superspreading events reported in meatpacking plants, churches and restaurants.

It’s unclear how often the virus is spread via these tiny droplets, or aerosols, compared with larger droplets that are expelled when a sick person coughs or sneezes, or transmitted through contact with contaminated surfaces, said Linsey Marr, an aerosol expert at Virginia Tech.

Follow latest updates on the Covid-19 pandemic here

Aerosols are released even when a person without symptoms exhales, talks or sings, according to Marr and more than 200 other experts, who have outlined the evidence in an open letter to the World Health Organization.

What is clear, they said, is that people should consider minimizing time indoors with people outside their families. Schools, nursing homes and businesses should consider adding powerful new air filters and ultraviolet lights that can kill airborne viruses.

What does it mean for a virus to be airborne?

For a virus to be airborne means that it can be carried through the air in a viable form. For most pathogens, this is a yes-no scenario. HIV, too delicate to survive outside the body, is not airborne. Measles is airborne, and dangerously so: It can survive in the air for up to two hours.

For the coronavirus, the definition has been more complicated. Experts agree that the virus does not travel long distances or remain viable outdoors. But evidence suggests it can traverse the length of a room and, in one set of experimental conditions, remain viable for perhaps three hours.

How are aerosols different from droplets?

Aerosols are droplets, droplets are aerosols — they do not differ except in size. Scientists sometimes refer to droplets fewer than 5 microns in diameter as aerosols. (By comparison, a red blood cell is about 5 microns in diameter; a human hair is about 50 microns wide.)

From the start of the pandemic, the WHO and other public health organizations have focused on the virus’s ability to spread through large droplets that are expelled when a symptomatic person coughs or sneezes.

These droplets are heavy, relatively speaking, and fall quickly to the floor or onto a surface that others might touch. This is why public health agencies have recommended maintaining a distance of at least 6 feet from others, and frequent hand washing.

But some experts have said for months that infected people also are releasing aerosols when they cough and sneeze. More important, they expel aerosols even when they breathe, talk or sing, especially with some exertion.

Scientists know now that people can spread the virus even in the absence of symptoms — without coughing or sneezing — and aerosols might explain that phenomenon.

Because aerosols are smaller, they contain much less virus than droplets do. But because they are lighter, they can linger in the air for hours, especially in the absence of fresh air. In a crowded indoor space, a single infected person can release enough aerosolized virus over time to infect many people, perhaps seeding a superspreader event.

For droplets to be responsible for that kind of spread, a single person would have to be within a few feet of all the other people, or to have contaminated an object that everyone else touched. All that seems unlikely to many experts: “I have to do too many mental gymnastics to explain those other routes of transmission compared to aerosol transmission, which is much simpler,” Marr said.

Can I stop worrying about physical distancing and washing my hands?

Physical distancing is still very important. The closer you are to an infected person, the more aerosols and droplets you may be exposed to. Washing your hands often is still a good idea.

What’s new is that those two things may not be enough. “We should be placing as much emphasis on masks and ventilation as we do with hand washing,” Marr said. “As far as we can tell, this is equally important, if not more important.”

Should I begin wearing a hospital-grade mask indoors? And how long is too long to stay indoors?

Health care workers may all need to wear N95 masks, which filter out most aerosols. At the moment, they are advised to do so only when engaged in certain medical procedures that are thought to produce aerosols.

For the rest of us, cloth face masks will still greatly reduce risk, as long as most people wear them. At home, when you’re with your own family or with roommates you know to be careful, masks are still not necessary. But it is a good idea to wear them in other indoor spaces, experts said.

As for how long is safe, that is frustratingly tough to answer. A lot depends on whether the room is too crowded to allow for a safe distance from others and whether there is fresh air circulating through the room.

What does airborne transmission mean for reopening schools and colleges?

This is a matter of intense debate. Many schools are poorly ventilated and are too poorly funded to invest in new filtration systems. “There is a huge vulnerability to infection transmission via aerosols in schools,” said Don Milton, an aerosol expert at the University of Maryland.

Most children younger than 12 seem to have only mild symptoms, if any, so elementary schools may get by. “So far, we don’t have evidence that elementary schools will be a problem, but the upper grades, I think, would be more likely to be a problem,” Milton said.

College dorms and classrooms are also cause for concern.

Milton said the government should think of long-term solutions for these problems. Having public schools closed “clogs up the whole economy, and it’s a major vulnerability,” he said.

“Until we understand how this is part of our national defense, and fund it appropriately, we’re going to remain extremely vulnerable to these kinds of biological threats.”

What are some things I can do to minimize the risks?

Do as much as you can outdoors. Despite the many photos of people at beaches, even a somewhat crowded beach, especially on a breezy day, is likely to be safer than a pub or an indoor restaurant with recycled air.

But even outdoors, wear a mask if you are likely to be close to others for an extended period.

When indoors, one simple thing people can do is to “open their windows and doors whenever possible,” Marr said. You can also upgrade the filters in your home air-conditioning systems, or adjust the settings to use more outdoor air rather than recirculated air.

Public buildings and businesses may want to invest in air purifiers and ultraviolet lights that can kill the virus. Despite their reputation, elevators may not be a big risk, Milton said, compared with public bathrooms or offices with stagnant air where you may spend a long time.

If none of those things are possible, try to minimize the time you spend in an indoor space, especially without a mask. The longer you spend inside, the greater the dose of virus you might inhale.

Jan 15: Australia openers David Warner and Aaron Finch both struck superb centuries to complement their bowlers’ inspired display as the touring side handed out a 10-wicket thrashing to India in the opening one-day international in Mumbai.

India, world-ranked No 2 in ODIs, suffered a middle-order collapse on their way to being bundled out for 255 in the final over of their innings after Australia captain Finch won the toss and opted to field in the first of the three-match series.

Warner and Finch then smashed the Indian bowlers to all corners of the ground, picking up boundaries seemingly at will to chase down the target with 74 balls to spare at the Wankhede Stadium.

Left-handed Warner successfully used the decision review system twice to overturn the umpire’s decision on his way to his 18th ODI century, hitting three sixes and 17 fours in his unbeaten knock of 128, from 112 balls. Finch completed his 16th century in the format, his unbeaten innings 110 from 114 features two sixes and 13 fours.

Earlier, Australia’s left-arm fast bowler Mitchell Starc, who made his ODI debut in India 10 years ago, picked up three wickets to set up Australia’s victory. He struck the first blow with the new ball when he sent back Rohit Sharma for 10.

India managed to recover from that early loss through a second-wicket stand of 121 between opener Shikhar Dhawan, who top-scored for the hosts with 74, and KL Rahul. However left-arm spinner Ashton Agar broke the stand by dismissing Rahul for 47 before Agar caught Dhawan off Pat Cummins in the next over.

The hosts were hoping for a solid innings from captain Virat Kohli, who batted a position lower than his usual No 3 spot to accommodate Rahul, to get them out of trouble. However, he lasted only 14 balls, hitting leg-spinner Adam Zampa for a six before offering a return catch to the bowler on the very next delivery to be out for 16.

Starc then returned to the attack, removing Shreyas Iyer cheaply as India lost four wickets for 30 runs to be reduced to 164 for five. Rishabh Pant and Ravindra Jadeja then fell just short of a half-century partnership, before the remaining four wickets falling for 42 runs, with Cummins and fast bowler Kane Richardson picking up two wickets apiece for Australia.

To compound India’s woes, wicketkeeper Pant suffered a concussion after being hit on his helmet by a short-pitched delivery from Cummins. The Indian cricket board said Pant, who did not come out to keep wicket and was replaced behind the stumps by Rahul, was under observation. The two sides will meet in Rajkot for the second ODI on Friday.