Ex-Armyman Naresh randomly kills 6 innocent Indians in 1 hour

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.

Mar 16: An investigation into Coffee Day Enterprises Ltd., initiated by its board after the death of founder V.G. Siddhartha, is likely to conclude that at least Rs 2,000 crore is missing from its accounts, according to people familiar with the matter.

The months-long probe following the suicide of Siddhartha in July examined the financial transactions of India’s largest coffee chain and its dealings with dozens of private companies owned by the entrepreneur. The draft report, running more than a hundred pages, points to thousands of rupees that have gone missing, said the people, asking not to be named because the details aren’t public. It also details hundreds of transactions between the founder’s listed and personal businesses that were not conducted at arm’s length, they said.

Though the report is in its final stages, the precise details could change before its release, expected as early as this week, the people said. The missing funds could total more than Rs 2500 crore, one person said.

“The investigation report is still a work in progress, and not finalized,” a spokesman for the company said. “The board of directors and the company are unaware of its content at this point of time. Hence it would be premature to speculate on the investigation findings.”

The priority for management and Siddhartha’s family “is to keep the business running in a challenging environment and meet all stakeholder commitments, including 30,000 jobs associated with the group,” the spokesman added.

The disappearance of the 59-year-old founder last year stunned India’s business community. He had last been seen telling his driver he was going for an evening walk along a bridge in southern India; his body was found by local fishermen two days later. A letter delivered to Coffee Day’s board and employees, which appeared to be signed by Siddhartha, described massive debts and complained of pressure from lenders and tax authorities. It claimed he bore sole responsibility for the company’s financial transactions.

The probe began about a month later when the company brought in Ashok Kumar Malhotra, a retired senior official from India’s federal enforcement agency, to investigate. A senior lawyer practicing in India’s top court is assisting, the company said in a regulatory filing at the time.

The publicly traded Coffee Day was supposed to be India’s answer to Starbucks Corp. More than 1,500 of its Café Coffee Day outlets blanketed cities and highways, with affordable options for the country’s aspiring middle classes. The chain’s tagline: “A lot can happen over coffee.”

But the empire has been battered since the founder’s death. Its shares plummeted about 90% and its market value dropped to about $80 million. Trading was suspended in February.

India’s regulators are tracking the situation and may use the company’s final report as part of a deeper dive into its internal affairs, the people said. Coffee Day showed about Rs 2400 crore in cash and cash equivalents on its balance sheet as of March 2019, the most recent figures the company has issued.

After the death of Siddhartha however, the company faced a severe liquidity crunch and had “zero cash in the bank,” according to one of the people. It struggled with day-to-day expenses and paying salaries has been a strain, the person said.

The draft report details personal guarantees by Siddhartha for loans taken by Coffee Day, and his unsecured loans at high interest rates from local money lenders, the people said. It also probes Coffee Day’s defaults to coffee growers and other vendors, they said.

A related issue is that coffee estates owned by Siddhartha and several employees had been used as collateral for bank loans. The report found that valuations for properties were inflated to get the loans, one person said.

Investigators have examined several theories about what happened to the company’s money, including whether Coffee Day was manipulating its finances to show cash and profit and whether Siddhartha was taking cash out of the listed company to pay off a large investor to whom he had guaranteed a return, the person said. From the filings of his listed and private companies, the entrepreneur’s loans had totaled more than Rs 10,000 crore, and he had been squeezed by borrowing to repay interest on earlier loans, the person said.

In the letter purportedly from Siddhartha, the entrepreneur said he had tried his best but failed as an entrepreneur. “I am solely responsible for all mistakes,” the letter read. “Every financial transaction is my responsibility. My team, auditors and senior management are totally unaware of all my transactions. The law should hold me and only me accountable, as I have withheld this information from everybody including my family.”

As the report nears release, Coffee Day is finalizing a deal with Blackstone Group Inc. for real estate assets. A large tranche of the payment is due in about a week, one person said.

Coffee Day said it is working to reduce its debt load by divesting non-core enterprises.

“The aim is to save employment and preserve this iconic Indian brand,” the spokesman said.

In a startling revelation, cybersecurity researchers have claimed that a hacker has posted personal details of nearly 2.9 crore Indian job seekers at one of the hacking forums on the Dark Web for free.

As part of the regular sweep over the Deep Web and Dark Web, researchers from cybersecurity firm Cyble came across an interesting item, where a threat actor posted 2.3GB (zipped) file on one of the hacking forums.

"The leak actually has a lot of personal details of millions of Indians Job seekers from different states," Cyble said in its blog on Friday.

This breach includes sensitive information such as email, phone, home address, qualification and work experience etc from job seekers spanning across states, from New Delhi to Mumbai and Bengaluru. 

Cybercriminals are always on the lookout for such personal information to conduct various nefarious activities such as identity thefts, scams, and corporate espionage.

"It appears to have originated from a resume aggregator service given the sheer volume and detailed information," it added.

Cyble indexed this information at ‘AmIbreached.com; – Cyble's data breach monitoring and notification platform.

Cyble researchers have identified a sensitive data breach on the dark web where an actor has leaked personal details of nearly 29 million Indian job seekers from various states. 

"Cyble's team is still investigating this further and will be updating their article as they bring more facts to the surface,” it said in a statement.

Cyble said it has acquired the leaked data. 

The same cyber security firm earlier exposed that Bengaluru-based edtech firm Unacademy was hacked.

According to Cyble researchers, nearly 22 million Unacademy user accounts were affected and the data was dumped and sold on Dark Web.

'We would like to assure our users that no sensitive information such as financial data or location has been breached," said Hemesh Singh, Co- Founder and CTO, Unacademy, in a statement.

In April, hackers sold personal data of a whopping 267 million Facebook users for just Rs 41,500 (approximately 500 Euros) that includes email addresses, names, Facebook IDs, dates of birth and phone numbers.

No passwords of the 267 million Facebook users were exposed by the hacker, according to Cyble.