Six feet distancing not enough to stop coronavirus transmission in light winds: Study

News Network
May 20, 2020

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.

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News Network
June 3,2020

Mumbai, Jun 3: With an expected increase in wind conditions up to 120 kilometres, cyclone Nisarga is likely to make landfall on the north coast of Maharashtra later today, as per the Indian Meteorological Department (IMD) on Wednesday.

"Wind conditions will further increase up to 100-110 gusting to 120 kmph as conditions are favourable for intensification. The higher sea surface temperature and low vertical wind shear favoured the intensification of severe cyclonic circulation," said IMD in a series of tweets.

Explaining the nature of wind speed, IMD further tweeted, "Eye diameter is about 65 km as observed through Radar. thus the diameter has decreased during past 01 hours indicating intensification of the system. hence wind speed has increased from 85-95 kmph to 90-100 kmph gusting to 110 kmph."

Several National Disaster Response Force (NDRF) teams have been deployed across Maharashtra to ensure preparedness for the impending cyclone. A total of eight teams have been deployed in Mumbai, five teams in Raigad, two teams in Palghar, Thane, and Ratnagiri and one team in Sindhudurg, said NDRF.

Besides, five NDRF teams were airlifted by IL-76 from Vijaywada for Mumbai on June 2, as per the Indian Air Force (IAF)

"Around 60 per cent of people, from the coastal areas around this area, have gone to their relatives' places. The remaining ones have been sent to the evacuation centre. We have also taken into account the COVID-19 guidelines and ensured social distancing," NDRF officer Shiv Parada Rao, deployed with his team in the Dahanu area, spoke to ANI.

"From the information we have received cyclone Nisarga is likely to hit here by tonight. The exact time is not confirmed yet. We are taking all preparedness measures to tackle the situation," he added.

NDRF teams also conducted evacuation in Alibaug during the early hours on Wednesday morning, as per NDRF Director General SN Pradhan.

As per the 5 am bulletin released by IMD, cyclone Nisarga was heading towards north Maharashtra coast at a speed of 11 kmph. It was about 200 km South -SouthWest of Alibag and about 250 km south-southwest of Mumbai at 2.30 AM today, stated the bulletin.

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News Network
March 10,2020

New Delhi, Mar 10: Minutes after Jyotiraditya Scindia submitted his resignation to the party membership to Congress chief Sonia Gandhi, the Congress expelled him for anti-party activities after reports emerged that he had met PM Modi and Amit Shah.

Disgruntled Congress leader Jyotiraditya Scindia met Prime Minister Narendra Modi on Tuesday amid indications that he might join hands with the BJP to topple the Madhya Pradesh government.

Sources said Scindia first met Union Home Minister Amit Shah, and then the two leaders met Modi at the prime minister's residence.

Legislators loyal to Scindia, who has been upset with the Congress leadership with his marginalisation in the affairs of the Madhya Pradesh Congress, are likely to quit the party to reduce the Kamal Nath-led government to a minority.

It is likely to be followed by the Bharatiya Janata Party staking claim to form the government in the state.

The Congress President has approved the expulsion of Jyotiraditya Scindia from the Indian National Congress with immediate effect for "anti-party activities," said KC Venugopal, General Secretary Congress.

No person is, nor will be greater than the party: Congress youth wing chief

Indian Youth Congress (IYC) chief Srinivas B V on Tuesday slammed Jyotiraditya Scindia, who has announced his resignation from the primary membership of the Congress, and thanked party chief Sonia Gandhi for expelling the former Guna MP "who was promoting anti-party activities and factionalism".

"The history of 1857 and 1967 was once again repeated," Srinivas B V said, referring to the 1857 Revolt against East India Company and the role of the Scindia royals back then as well as Vijayaraje Scindia's switch from the Congress to the Jana Sangh in 1967.

"I would like to thank Congress president Sonia Gandhiji for taking the strong steps to expel the leader who was promoting anti-party activities and factionalism," the IYC chief said.

"No person is, nor will be greater than the party," he added.

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News Network
January 28,2020

New Delhi, Jan 28: Stepping up attack on Chief Minister Arvind Kejriwal, Union Home Minister Amit Shah on Monday dared the AAP chief to visit the anti-CAA protest site at Shaheen Bagh so that the people of Delhi can decide whom to vote for in the assembly election.

Addressing a rally in Rithala in northwest Delhi, Shah said Kejriwal and Congress leader Rahul Gandhi were against the construction of Ram temple, the scrapping of provisions of Article 370 and not bothered about the country's image and soldiers.

The opposition fears that they will upset their vote bank, he said and asked, "Are you their vote bank? Where is their vote bank?" To this, the crowd replied, "Shaheen Bagh".

The BJP leader claimed that the Delhi Police has booked Sharjeel Imam, a JNU student, on the charge of sedition for his comment of "trying to cut chicken's neck" and breaking the North East from the rest of the country.

"I want to ask Kejriwal whether he is in favour of apprehending Sharjeel Imam or not? Whether you are with the people of Shaheen Bagh or not, please tell the people of Delhi," Shah said.

Imam was one of the initial organisers of the Shaheen Bagh protest.

Hitting back at the BJP, Kejriwal alleged that the saffron party does not want to open the Shaheen Bagh stretch of the Kalindi Kunj road as it is doing "dirty politics" over it.

He said law and order in the national capital lies entirely with the Centre and "if they are saying that they need permission from me, I am giving them permission, open the road in one hour".

"I can give it to you in writing, the BJP does not want to open the route in Shaheen Bagh. The Shaheen Bagh route will remain closed till February 8 (election day) and it will open February 9," Kejriwal told reporters.

Calling Kejriwal a member of the 'tukde tukde' gang, a term used by the BJP to attack groups it accuses of working to promote violent leftists and separatism, Shah sought to return fire and said the protesters of Shaheen Bagh will not listen to his party.

"They will not listen to us. You people (AAP leaders) say that you are with Shaheen Bagh, if you have the guts then go and sit with them and let Delhi decide," Shah said.

At another election rally in Janakpuri, Shah accused Gandhi and Kejriwal of doing politics of "vote bank" on national issues and "supporting" the protest at Shaheen Bagh while instigating riots and vandalism.

"The Modi government will not spare anti-national elements," he warned.

Upon mentioning the recent Supreme Court judgment on Ayodhya, Shah was greeted with cheers and chants of 'Jai Shri Ram'.

The home minister further said that this was the first Republic Day in Jammu and Kashmir after the abrogation of Article 370 and the tricolour was unfurled there with enthusiasm and without any bloodshed.

The former BJP president also attacked the Kejriwal government for not fulfilling promises like regularising temporary employees, providing free wifi, opening new schools and colleges, constructing roads and cleaning the Yamuna.

"Kejriwal government is in power since five years but till today there is no clean drinking water in the city. There are no good schools or hospitals as claimed by him. When I visited a Delhi government school, I saw that it was operating from a building that was illegally built and falls in the list of those that to be erased," Shah said.

He claimed that Kejriwal came to power with the help of Anna Hazare's anti-corruption movement but "completely changed" later on.

"He had said that he would not take any government accommodation or vehicles and other facilities but after becoming chief minister he availed all these facilities," Shah said.

He also slammed the Delhi government for not sanctioning the prosecution of former JNU students' union leader Kanhaiya Kumar in a sedition case.

Shah said if the national capital comes under the leadership of Modi, it will become the best city in the world.

The BJP has a vision for development of Delhi and cleaning the Yamuna river will be on top of our agenda, he said.

"Yamuna river is still dirty as against his (Kejriwal) claims of cleaning the river... Modi and Yogi (Adityanath) have cleaned Ganga river as promised. We will make Yamuna Riverfront like Sabarmati riverfront in Ahmedabad," Shah said.

However, a sizeable majority of those present at the public meeting was not convinced by the claims and promises made by Shah.

Bablu Yadav, a migrant and resident of Janakpuri said, "Shah and Modi can only talk but Kejriwal knows how to perform. They keep raking up issues like Ayodhya, Kashmir, Muslims and Pakistan... what are they waiting for if they want to attack Pakistan? They are in power, so why don't they destroy it instead of telling us how wrong Pakistan is?"

Another local Deepak Shrivastava who attended the Janakpuri meeting said, "All we hear from Modi and Shah are pep talks. I am an engineer from BHU and searching for a job. This government has failed the country's youth."

"Now, they have a problem with protests in universities but it is the same youth who brought them to power in 2014. The same youth will ensure their defeat," he added.

The public meeting in Janakpuri witnessed two incidents of pick-pocketing as the thieves managed to steal Rs 37,500 in cash and a mobile phone, police said.

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Indian Soul
 - 
Tuesday, 28 Jan 2020

The biggest ANti-Nationals of INDIA are criminal Modi & AMith Shah Tadi PAAR...how long you will win by EVM...one day the people of indian will teach you a lesion of your life...

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