Mangaluru: BWF felicitates Beary Academy chief

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, May 15: Mohammed Kana, son of late Ismail Kana and grandson of late Dr M S Bapanad Mulki passed away in Riyadh, Saudi Arabia due to heart attack on Thursday. He was 57.

Hailing from Mangaluru, Mohammed Kana was working in Saudi Arabia for past 30 years. He is survived by his wife, son and a daughter.

He was involved in various social and welfare activities in India and Saudi Arabia. His tragic demise has left huge vacuum in his family and community at large.

Bengaluru, Jan 23: An alleged low-intensity blast on Wednesday late evening in Shanthinagar left three-time Congress MLA NA Harris and six others with burn injuries. The blast reported at around 8:30 pm during a cultural programme gripped the central parts of Bengaluru in a panic especially after the incident of police recovering a live bomb in Mangaluru airport. 

According to sources in Shanthinagar, MLA Harris was attending the birthday celebrations of MGR organized by the locals close to his residence in Shanthinagar. Following the blast, Harris and a few others who standing close to the MLA sustained burn injuries and rushed to the nearby Philomena Hospital immediately and police officials from both the Ashok Nagar and Vivek Nagar visited the spot. The police officials are yet to confirm whether it was a bomb blast or due to the bursting of loud and powerful crackers. 

Chethan Singh Rathore, DCP (Central) visited the hospital and the blast site. A team of forensic science lab experts have also been summoned to the spot to collect samples for ascertaining the nature of the blast. MLA Harris’s son Mohammed Nalapad who rushed to the hospital along with supporters told media persons that they are completely shocked by the incident. 

“He was sitting on a chair and suddenly something that was hurled at him exploded beneath the chair. He sustained injuries to his leg and brought to the hospital. He is being treated by a team of doctors and other injured supporters are also being attended to by the doctors,” Nalapad said. 

Expressing shock over the incident, he said, “My father has been an MLA for 12-years and nothing of this sort had happened before in the constituency. We have no rivals and my father never had any gunmen. We are all shocked and have complained to the jurisdictional police.” 

Meantime, Dr Shankar Prasad, Medical Director, St Philomena’s Hospital explained that Harris and others are currently being treated for minor injuries. “None of them have any open cut injuries and they are being examined further,” Dr Prasad told DH. 

According to Dr Prasad, Harris had a minor blood clot in his left leg which was possibly due to a hard object hitting him during the blast. “We have taken X-Ray and examining further. At the look of it, it seems like a very minor injury,” he added.