Press any button; vote goes to BJP! Saffronisation of EVMs sparks protest

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.

Mangaluru, Jan 23: Veekshitha Arasa, an officially certified Zumba instructor is all set to present Zumba fitness on the Beach to the people of Mangalore on January 26, 2020. The Zumba event will be hosted at Panambur Beach on Republic Day (Sunday) from 4.00 p.m. to 6.00 p.m. Entry is free to the public and there are no tickets.

Veekshitha Arasa will be accompanied by some of the immensely talented Zumba Instructors from Bangalore who have been passionately spreading love for Zumba through their classes and events. Some amazing instructors from Mangalore too will be joining the event to make it even more happening.

With the sole aim to promote fitness among Mangaloreans these Zumba Instructors will make you groove to peppy, energetic numbers and make your evening sweat-blasting and fantastic.

The main presenter and host of this event Veekshitha hails basically from Mangalore. Having conducted Zumba training in various fitness centers and corporates across Bangalore and being the presenter in several mega events both in India and International Platforms in Hong Kong, Veekshitha always had a dream to have a full-fledged Zumba fitness event in her own city - Mangalore. The idea of having it by the beach side fascinated her even more and that’s how this event has been planned exclusively for the people of Mangalore right on the beach.

For all those who have been planning to start their fitness journey this might just be the beginning. Go join the Zumba party and shed some calories.

AJ Hospital & Research Centre, APD Foundation and SS Arrangers & Caterers are the sponsors for the event.

Jan 13: India lost more than $1.33 billion to internet restrictions in 2019 as Prime Minister Narendra Modi’s government pushed ahead with his party’s Hindu nationalist agenda, raising tensions and sparking nationwide protests.

The worst shutdown has been in Kashmir, where after intermittent closures in the first half of the year, the internet has been cut off since Aug. 5 following the government’s decision to revoke the special autonomous status of the country’s only Muslim-majority state, a study said. The prologued closure was criticized by India’s highest court, which ruled Friday that the “limitless” internet shutdown enforced by the government for the last five months was illegal and asked that it be reviewed.

India imposed more internet restrictions than any other large democracy, according to the Cost of Internet Shutdowns 2019 report released by Top10VPN, a U.K.-based digital privacy and security research group. The South Asian nation recorded the third-highest losses after Iraq and Sudan, which lost $2.31 billion and $1.86 billion respectively to disruptions. Worldwide internet restrictions caused losses worth $8.05 billion, the report said.

The cost of internet blackouts was calculated using indicators from groups including the World Bank, International Telecommunication Union, and the Delhi-based Software Freedom Law Center. It includes social media shutdowns in its calculations.

India’s ministry of information and technology didn’t respond to an email seeking a response to the report’s findings.

‘Conservative Estimates’

Through 2019, India shut access to the internet for over 4,000 hours. The report added shutdowns in India were often narrowly targeted, down to the level of blocking city districts for a few hours to allow security forces to restore order. Many of these incidents were not included in the report.

“These are conservative estimates,” said Simon Migliano, head of research at U.K.-based Top10VPN. “Internet shutdowns are increasing and it shows a damaging trend.”

India’s other major internet disruptions coincided with two moves by the government that affect India’s Muslim minority. The first disruption took place in November in the states of Uttar Pradesh and Rajasthan after the Supreme Court handed a victory to Hindu groups over Muslim petitioners in a long-simmering dispute over a plot of land.

There were further disruptions in December when protests erupted against the introduction of a religion-based law that allows undocumented migrants of all faiths except Islam from neighbouring countries to seek Indian citizenship. The government enforced shutdowns across Uttar Pradesh and some Northeastern states in order to quell the protests, the report said.