Unscientific RUB at Padil: Activists stage novel protest of fishing in stagnant water

Mangaluru, Mar 5: As many as 29 police officers and personnel were examined by Udupi Deputy Commissioner G Jagadeesha, head of the magisterial enquiry into the police firing in the city in December 2019 which killed two anti- Citizenship (Amendment) Act (CAA) protesters.

A total of 176 police personnel have been directed to present their evidence before the magistrate for the enquiry.

ACPs K U Belliappa and Kodandarama presented his evidence on Wednesday, while ACP (central sub division) M Jagdish and ACP (traffic) M Manjunatha Shetty submitted their evidencein writing.

The next hearing is slated to be held on March 9 when statements of 41 officers including DCP (law and order) Arunangshu Giri will be recorded.

City police commissioner P S Harsha has been asked to submit his evidence on March 12, Jagadeesha said.

The enquiry report is to be submitted to the government on March 23.

Jagadeesha said he will seek an extension in the case of any delay in the recording of evidences.

Two people - Nausheen and Jaleel - were killed in the firing on December 19, 2019 during the protests here against the CAA.

The Karnataka government had decided to hold a CID probe and a magisterial enquiry into the incident.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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, Apr 30: Yet another case of covid-19 reported in the coastal city of Mangaluru today.  

The Dakshina Kannada district administration confirmed that a 58-year-old woman hailing from Boluru area in the city was tested positive for the coronavirus.

The woman was undergoing treatment in First Neuro Hospital at Padil where a woman from Bantwal (identified as P-501), who died of coronavirus had undegone treatment before being shifted to Wenclock. 

With this, total number of positive cases in Dakshina Kannada district has gone up to 22.