Sunday, June 21, 2020

How Iceland Beat the Pandemic Without Imposing a Lockdown

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Article Contributor(s)

Nikhita Gautam

Article Title

How Iceland Beat the Pandemic Without Imposing a Lockdown

Publisher

Global Views 360

Publication Date

June 21, 2020

URL

Downtown Reykjavik, Iceland

Downtown Reykjavik, Iceland | Source: Robingileo via Wikimedia

Like the rest of the world, Iceland also has to face the COVID-19 situation. This European country of approximately 3.5 lakh population registered the first case of COVID-19 virus on the 1st March 2020 and the number of the infected hit a peak on the 5th May 2020. The active cases declining afterwards and on 24th of May there were only three active cases. Iceland’s response to COVID-19 has been widely lauded.

The country’s small population enabled extensive testing; instead of simply testing symptomatic or exposed people, also tested the general population. Along with the Icelandic health authorities, deCode Genetics, which is an organization committed to mapping and understanding the human genome, undertook the task of testing the general and non-symptomatic population for free. Consequently, Iceland has tested a higher portion of inhabitants than any other country, making it easier to trace how the infection spreads. There has been no lockdown imposed; however, the government has been taking measures to spread awareness for voluntary self-quarantine measures. The government also banned gatherings of more than 20 people on 24th of March which was relaxed to 200 from 25th of May.

The strategy followed by the government of Iceland was based on robust testing, contact tracing of infections, social distancing, increasing public’s awareness of hand-sanitation and voluntary self-quarantine, along with strict measures in healthcare institutions. Through effective contact tracing the healthcare workers were able to reach out to people who came in contact with COVID-19 infected people and recommend them to self-quarantine.

The government was very open in communicating with the citizens on the status of COVID-19 situation in the country. Half an hour long daily briefing on Iceland’s local response to the pandemic was relayed on the public’s screens for the past months until the 25th of May. The briefings were led by Þórólfur Guðnason, Alma Möller and Víðir Reynisson who are the Chief Epidemiologist, Director of Health and Director of Iceland’s Department of Civil Protection and Emergency Management respectively.

Iceland has shown that robust testing regime, contact tracing, and clear communication to the public can be very effective in controlling the COVID-19 before it could turn into a pandemic.

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February 4, 2021 4:49 PM

Discovery of a new particle: A Charming Tetraquark

While the world is horrified by the novel Coronavirus, scientists at the European Centre for Nuclear Research (CERN) announced the discovery of a never seen before tetraquark. Any finding in particle physics is a phenomenal one because it could tell us a lot about the origins of the universe and how everything came to be. And this discovery is quite charming and quarky (quirky).

Quarks are the elementary particles so any further division of these particles is not possible. This means everything in the universe is ultimately a combination of Quarks. Any new discovery of Quarks  therefore increase our understanding about the origin of universe

When three Quarks come together, they form familiar particles known as Baryons, for instance, protons and neutrons, found in the nucleus of an atom. A tetraquark, in particle physics, is an exotic meson composed of four quarks.

Murray Gell-Mann, recipient of the 1969 Nobel Prize in Physics for his work on the theory of Elementary particles, chose the name ‘Quark’. Another scientist,  George Zweig from CERN also proposed the Quark theory independently of Gell-Mann.

All the new particles are detected using particle accelerators where particles are accelerated at almost the speed of light and collide to look into their subsets. It is like knocking two rocks together so that they break into smaller constituents.

The most recent tetraquark, named X (6900) was discovered by CERN physicists while working on LHCb (Large Hadron Collider beauty experiment). The already known tetraquarks contain a particular combination of two relatively heavy quarks and two light Quarks. On the other hand X(6900) consists of four heavy Quarks: two Quarks and two anti-Quarks.

This exclusive particle made of unusual combinations is a perfect setting for understanding the fundamental force of nature known as Strong Interaction. The strong force is vital to comprehend as it binds together protons, neutrons and the nucleus that ultimately make up matter. Another perk of X(6900)  is its relatively heavy mass, so these are simpler to look at and are more stable as compared to notoriously fast moving-lighter ones.

The paper written by 800 scientists is yet to be peer-reviewed. The bump observed has a statistical significance of more than five sigma (standard deviations) that is good enough to claim the discovery of a new particle.

In any scenario, this unusual discovery will serve as a piece for completing the puzzle of our universe while serving as evidence of the presence of new particles not yet found.

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