Attendance shortage: Over 2,000 II PU students in Karnataka can't write exams

Bengaluru, July 23: The Janta Dal (Secular) and Congress that had joined hands together in Karnataka ‘to keep communal forces at bay, have once again turned archrivals. The development comes a year after the collapse of JD(S)-Congress coalition government in the state.

Recently, Leader of the Opposition Siddaramaiah claimed that the Congress would have won at least 10 seats in the Lok Sabha elections had it not been for the alliance with the JD(S). In response, former chief minister H D Kumaraswamy of the JD(S), who headed the coalition government, blamed the Congress for its many 'conspiracies'.

In a series of tweets on Wednesday, Kumaraswamy said he was prompted by Siddarmaiah's claims to recall what transpired during the coalition government. 

"There will never be a future alliance with Congress," Kumaraswamy declared, in a letter to his party colleagues on Wednesday. He claimed that there were many conspiracies on part of Congress, which led to the fall of the coalition government.

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of the American Medical Association, noted that the the current guidelines issued by the WHO and CDC are based on outdated models from the 1930s of how gas clouds from a cough, sneeze, or exhalation spread.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

Kasaragod, Jul 14: Kerala State Excise department officials confiscated hawala money to the tune of Rs 2.85 crore from a person hailing from Mangaluru.

According to sources, the officials of the Kumbala Range Excise had noticed the huge baggage containing hundreds of bundles of unaccounted currencies when they intercepted a vehicle at the border check-post at Thoominad in Manjeshwar early on Tuesday morning.

The accused Shamsudheen, who was trying to transport the illegal money into Kerala has been arrested and handed over to the Manjeshwar police authorities for further action, sources added.