Modi's second state visit to UAE begins

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.

Riyadh, May 22: The family of murdered Saudi journalist Jamal Khashoggi on Friday said that they forgave his killers. Washington Post journalist Jamal Khashoggi, who had written columns critical of Saudi Arabia, was brutally killed in October 2018, allegedly at the behest of Crown Prince Mohammad bin Salman.

“In this blessed night of the blessed month [of Ramadan] we remember God’s saying: If a person forgives and makes reconciliation, his reward is due from Allah,” Jamal Khashoggi’s son Salah Khashoggi said in a tweet. “Therefore, we the sons of the Martyr Jamal Khashoggi announce that we pardon those who killed our father, seeking reward [from] God almighty.”

The legal outcome of this announcement is not yet clear. Earlier, Salah Khashoggi said he had “full confidence” in the judicial system, and that the accused were trying to exploit the case.

Jamal Khashoggi’s body was said to have been dismembered inside the Saudi consulate in Istanbul and disposed of elsewhere, but his remains were never found.

Abu Dhabi, May 18: Bollywood superstar Salman Khan has recorded a special message for Indian expats in the UAE as the country fights the coronavirus pandemic.

Khan - one of the biggest stars of Bollywood for decades - enjoys a large fan following in the Gulf, which is why Abu Dhabi roped in the actor to record a special video message for expats, urging them to cooperate with authorities in the capital and the country as they carry out sanitisation and testing programmes.

In the video, tweeted by the Abu Dhabi Media Office on Sunday night, the superstar appeals to Indians in Abu Dhabi to become heroes by staying home (stepping out for essential work/errands only), following precautionary measures and simply 'do the right thing' by getting tested if they have any Covid-19-related symptoms.

"كونوا أبطالاً، وقوموا بالعمل الصائب"
النجم الشهير سلمان خان، والذي صور أفلاماً عديدة في أبوظبي، يناشد الجالية الهندية باغتنام كرم وإنسانية حكومة وشعب أبوظبي، والتعاون معها من خلال الالتزام بتعليمات الجهات المعنية وإجراء الفحوصات عند ظهور أي عوارض الإصابة بفيروس كوفيد-19. pic.twitter.com/PVfaWg2j4z

— مكتب أبوظبي الإعلامي (@admediaoffice) May 17, 2020

Khan, who has shot his recent super hit films (Race 3) in the capital, assured expats that Abu Dhabi authorities will not leave the community in these challenging times as it is a hospitable city who takes care of all residents.

"Following preventive measures also protects your family from the virus - so do the right thing as heroes do," Khan concludes.

The second phase of Abu Dhabi's sanitisation and testing in labour areas is underway, which started on May 16. Special testing facilities have been set up in the city for this purpose that test thousands of workers everyday.

As of May 17, UAE has confirmed over 23,000 cases along with over 8,000 recoveries and 220 deaths.

The country recently made a breakthrough in treating Covid-19 by using stem cells to help with the recovery.

The UAE leadership has thanked citizens and residents for their cooperation and assured that the country will take care of everyone in the country - with food and medicines being the red line, and that there will be no shortage of either during the crisis. Stimulus packages have been announced to help businesses stay afloat.