Mangaluru: Cops detain 5 men, rescue 8 women after raiding bar in Saibeen Complex

The current physical distancing guidelines provided by the World Health Organisation (WHO) and by the US Centers for Disease Control and Prevention (CDC) may not be adequate to curb the coronavirus spread, according to a research which says the gas cloud from a cough or sneeze may help virus particles travel up to 8 metres. The research, published in the Journal of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.

Study author, MIT associate professor Lydia Bourouiba, warned that droplets of all sizes can travel 23 to 27 feet, or 7-8 metres, carrying the pathogen.

According to Bourouiba, the current guidelines are based on "arbitrary" assumptions of droplet size, "overly simplified", and "may limit the effectiveness of the proposed interventions" against the deadly pandemic.

 She explained that the old guidelines assume droplets to be one of two categories, small or large, taking short-range semi-ballistic trajectories when a person exhales, coughs, or sneezes.

However based on more recent discoveries, the MIT scientist said, sneezes and coughs are made of a puff cloud that carries ambient air, transporting within it clusters of droplets of a wide range of sizes.

Bourouiba warned that this puff cloud, with ambient air entrapped in it, can offer the droplets moisture and warmth that can prevent it from evaporation in the outer environment.

"The locally moist and warm atmosphere within the turbulent gas cloud allows the contained droplets to evade evaporation for much longer than occurs with isolated droplets," she said.

"Under these conditions, the lifetime of a droplet could be considerably extended by a factor of up to 1000, from a fraction of a second to minutes," the researcher explained in the study.

The MIT scientist, who has researched the dynamics of coughs and sneezes for years, added that these droplets settle along the trajectory of a cough or sneeze contaminating surfaces, with their residues staying suspended in the air for hours.

"Even when maximum containment policies were enforced, the rapid international spread of COVID-19 suggests that using arbitrary droplet size cutoffs may not accurately reflect what actually occurs with respiratory emissions, possibly contributing to the ineffectiveness of some procedures used to limit the spread of respiratory disease," Bourouiba wrote in the study

Mangaluru, Jan 19: Karnataka’s coastal city of Mangaluru has been ranked India’s safest city with the lowest crime index (24.14) in the country, according to a survey conducted by Numbeo.

Numbeo is a crowd-sourced global database of reported consumer prices, perceived crime rates, and quality of healthcare, among other statistics.

Mangaluru was named the city with the highest safety index of 75.86 among all major Indian cities.

According to the survey, Abu Dhabi is the world's safest city which has the lowest crime index of 11.33. It has the highest safety index of 88.67 in the list of 374 global cities.

Abu Dhabi sits on number one spot - as an increase in a city's ranking means a drop in its crime rate.

Sharjah ranked fifth safest and Dubai was ranked as the seventh safest city in the world with its safety index at 82.95.

Joining Abu Dhabi in the top ten are Taipei, Quebec, Zurich, Dubai, Munich, Eskisehir, and Bern. Islamabad (74) was ranked the safest in Pakistan.

Meanwhile, Caracas in Venezuela was rated the as the most unsafe city with the highest crime index 84.90.

Dubai, Apr 26: Families were shattered as the three dead bodies of UAE-based Indian expats were returned to the country from New Delhi, India.

Family members waited outside the Indira Gandhi International Airport for hours, but they were later told to go back home as the remains of expats Jagsir Singh, Sanjeev Kumar and Kamlesh Bhatt were flown back to Abu Dhabi, following a new order implemented by India's Ministry of Home Affairs.

Inderjeet, brother-in-law of Sanjeev based in Al Ain, said their family in Punjab was devastated.

"This is a non-coronavirus death. We had a death certificate as proof and all necessary documents from Indian Embassy. But the body was returned while our family members waited outside the airport. This is very shocking," Inderjeet said.

"The body shouldn't have been returned. It's difficult to travel across states due to Covid-19 restrictions and also to arrange the ambulance," he added.

"Now the embassy has told me to come on Sunday. They said hopefully things will be sorted out in a day or two."

Meanwhile, the family of Kamlesh resides in the Indian state of Uttarakhand. This means, with existing travel restrictions, they had to secure permits from different states to reach New Delhi.

Dubai-based social worker Girish Pant, who is in touch with the family, said they are all depressed with the unfortunate turn of events.

"His brother Vimlesh had to return home without the remains. They are all clueless and in pain. With the new order from the Ministry of Home Affairs, I have informed the family that the body will reach them within 48 hours. I am also coordinating with the Indian Embassy," Pant said.