Saudi Arabia eyes tourism growth; to begin issuing tourist visas soon

Karachi, May 23: Ninety-seven people were killed and two survived when a passenger plane crashed into homes in Pakistan's southern city of Karachi, health officials said Saturday.

The Pakistan International Airlines (PIA) plane had made multiple approaches to land at the city's airport when it came down in a residential area, damaging buildings and sparking a rescue operation that lasted into the night.

All passengers and crew had been accounted for and the bodies of those killed had been recovered from the crash site, the Sindh Health Ministry said, adding that 19 had been identified.

A local hospital earlier reported it had received the bodies of people killed on the ground.

The site remained cordoned off on Saturday morning.

The crash sent plumes of smoke were into the air as rescue workers and residents searched the debris for people and as firefighters tried to extinguish the flames.

An AFP reporter witnessed charred bodies being loaded into ambulances.

PIA said the plane lost contact with air traffic control just after 2:30 pm (0930 GMT) travelling from Lahore to Karachi.

The disaster comes as Pakistanis prepare to celebrate the end of Ramadan and the beginning of Eid al-Fitr, with many travelling back to their homes in cities and villages.

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.

Mumbai, Feb 17: The Shiv Sena on Monday said the ongoing preparation for the much awaited visit of US President Donald Trump is a reflection of the "slave mentality" of Indians.

Trump's India trip is like the visit of a "Badshah" (emperor), an editorial in Sena mouthpiece 'Saamana' said.

Taking a dig at the construction of a wall on a plot having several slum structures in Ahmedabad ahead of Trump's visit there, the Sena said the US president's trip would neither stop the fall of rupee's value in forex market nor offer betterment to those (slum dwellers) behind the wall.

"Before Independence, British King or Queen used to visit one of their slave nations like India. The kind of preparations going on from taxpayers' money for the arrival of Trump is similar to it. This reflects the slave mentality of Indians," it said.

The Sena also took a swipe at Prime Minister Narendra Modi over the Ahmedabad Municipal Corporation's (AMC) move to build wall on a plot to "hide the slums" on the route through which Trump's convoy would pass.

"Former prime minister Indira Gandhi had once given the slogan 'Garibi Hatao', which was ridiculed for a long time. It seems now Modi's plan is 'Garibi chupao' (hide poverty)," the Marathi publication said.

Is there any financial allocation for such a wall being built in Ahmedabad? Is the US going to offer loan to India to build such walls across the country? it wondered.

"We have heard Trump is going to be in Ahmedabad for only three hours but the wall construction is costing almost Rs 100 crore to the state exchequer," it said.

It is basically a political arrangement between Prime Minister Modi and US President Trump, the Sena claimed.

Last year, 'Howdy, Modi!' (a mega event jointly addressed by the Indian prime minister and Trump) was organised in the US, it noted.

A similar programme, "Kem Chho Trump" (Gujarati expression for how are you Trump), has been now organised (in Ahmedabad) ahead of the US elections, chiefly because of a sizable number of Gujarati people living in America, the Shiv Sena claimed.

"But this visit of President Trump is neither going to stop further fall of rupee in the forex market nor offer betterment to those behind the wall (being built in front of slums in Ahmedabad)," it said.

The Sena said Trump is "not someone very wise or a statesman or someone who cares for the whole world", but he has to be treated with respect as he represents the mighty US.

"Sometimes you have to treat someone with respect to get your things done," it quipped.

The AMC on Friday said the construction of the wall, around four feet in height, was approved much before Trump's Gujarat visit was finalised.

Trump is scheduled to visit Modi's home state Gujarat on February 24.

He will visit the famous Sabarmati Ashram in Ahmedabad and take part in a roadshow with Modi. After that, the two leaders will inaugurate a new cricket stadium in Motera and address a gathering there, with an expected audience of over a lakh people.

While it was earlier speculated that the programme would be called 'Kem Chho Trump', the Ahmedabad Municipal Corporation on Sunday tweeted a series of posters confirming that the event is now christened as 'Namaste Trump', apparently to give it a pan-India appeal.