Current Affairs Quiz - April, 2019

Notes:
On April 1, ISRO has successfully launched India’s latest EMISAT defence satellite from the Sriharikota spaceport. In today’s mission, the rocket PSLV-C45 flew in a new configuration called “QL”. In this configuration, the rocket is fitted with four longer versions of strap-on motors that provide the vehicle the required additional thrust. Earlier, the rocket used to be in “XL” version with six strap-on motors or two or with no strap-on motors known as core alone configuration. The PSLV-C45 successfully injected EMISAT in a 748-km sun-synchronous polar orbit and 28 international customer satellites in a 504-km orbit. Of these, 24 are from the US, two from Lithuania, and one each from Spain and Switzerland. EMISAT is a satellite built around ISRO’s Mini Satellite-2 (IMS-2) bus weighing about 436 kg. The satellite is intended for electromagnetic spectrum measurement.

Notes:
The Garden Reach Ship Builders and Engineers Ltd (GRSE) has become the first Indian shipyard to build and deliver 100 warships to the Indian Navy, Indian Coast Guard and Mauritius Coast Guard. The 100th Warship “IN LCU L-56” was formally handed over to the Indian Navy. The GRSE is one of India’s leading shipyards, located in Kolkata, West Bengal. It builds and repairs commercial and naval vessels. Presently, GRSE has also started building export ships in a mission to expand its business.

Notes:
Using platinum nanocatalyst, a two-member team at the IIT Madras has successfully converted petroleum waste-product toluene into benzoic acid. Benzoic acid is used as a food preservative (E210) and medicine for fungal/bacterial infection. Toluene is converted into benzoic acid through selective and controlled oxidation in the presence of a catalyst — binaphthyl-stabilised platinum nanoparticles (Pt-BNP). Generally, organic reactions are carried out using organic solvents, which makes it expensive and also generates toxic waste. So, the team led by G. Sekar used water as solvent to make it environment-friendly. Also, a green oxidant (70% aqueous tert-butyl hydroperoxide or TBHP) is used for converting toluene into benzoic acid. When toluene is oxidised, it gives four products. But, the team used catalyst that they developed and then only benzoic acid is produced. No alcohol, aldehyde or ester is produced. The yield of benzoic acid varied from 68-96% depending on whether the toluene used is electron-deficient or electron-rich.

Notes:
The World Autism Awareness Day (WAAD) is observed every year to raise public awareness of Autism Spectrum Disorder (ASD). Autism is a brain disorder that typically affects a person’s ability to communicate with others. It generally begins in childhood and last through adulthood. The day highlights the need to help and improve the quality of life of those with autism so that they can lead full and meaningful lives as an integral part of society. The 2019 theme “Assistive Technologies, Active Participation” , underscores the importance of affordable assistive technologies to support people with autism to live independent lives and, indeed, to exercise their basic human rights.

Notes:
According to a new collaborative study by the Queen’s University Belfast and Aberystwyth University in the UK, the sun’s magnetic field is ten times stronger than previously thought. Using the Swedish one-metre Solar Telescope at Roque de los Muchachos Observatory, in the Canary Islands, David Kuridze studied a particularly strong solar flare which erupted near the surface of the Sun on September 10, 2017. A combination of favourable conditions and an element of luck enabled the team to determine the strength of the flare’s magnetic field with unprecedented accuracy. The researchers believe the findings have the potential to change our understanding of the processes that happen in the Sun’s immediate atmosphere. The study found that the sun’s corona extends millions of kilometres above the surface, measuring 1,400,000 kilometres across — 109 times larger than Earth — and 150,000,000 km from Earth. Solar flares appear as bright flashes and occur when magnetic energy that has built up in the solar atmosphere is suddenly released. These solar flares can lead to storms which, if they hit Earth, form the northern lights — the Aurora Borealis. They can also disrupt communications satellites and GPS systems.

Notes:
In Kerala, the group of science experts of the Hume Centre for Ecology and Wildlife Biology has decided to launch ‘Café Scientifique’ to promote science among public in an interesting way. It is the first such initiative in the state to popularise the subject. It envisages to bring science back into popular culture by demystifying scientific research for the public and empowering non-scientists to comfortably assess science and technology issues, particularly those that impact social policy making. The project is also aimed at making science relevant, powerful and important to the public, especially the younger generations. Here, various topics such as universe, climate change, evolution, genetics and human-animal relations will be discussed in every monthly gathering. It is a grassroots public science initiative based on the French Café Philosophique model.

Notes:
UAE President Sheikh Khalifa bin Zayed Al Nahyan has conferred the prestigious Zayed Medal to Prime Minister Narendra Modi for giving a “big boost’ to bilateral strategic ties between the two countries. The award comes in appreciation of PM Modi’s role in consolidating the long-standing friendship and joint strategic cooperation between the two countries. The Zayed Medal is the highest decoration awarded to kings, presidents and heads of states.

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The International Day for Mine Awareness and Assistance in Mine Action is observed every year on April 4 to raise awareness about landmines, explosive remnants of war, and progress toward their eradication. The 2019 Theme is “United Nations Promotes SDGs – Safe Ground – Safe Home”.

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The State of the Global Air 2019 report has recently released by the Boston-based Health Effects Institute (HEI). The report revealed that 1.2 million Indians lost their lives due to exposure to unsafe air in 2017. Now, in India, air pollution is the third-highest cause of death among all health risks, ranking just above smoking. This is a combined effect of outdoor fine particles PM2.5, ozone and household (indoor) air pollution. In 2017, exposure to PM 2.5 pollution was found to be the third leading risk factor globally for Type 2 diabetes-related deaths and disability after high blood sugar and excessive body weight. Due to this combined exposure South Asians including Indians are dying early — their life expectancy has reduced by over 2.6 years. In India, early deaths are linked to respiratory diseases, heart disease, stroke, lung cancer, and diabetes that are influenced by air pollution.

Notes:
Isaak Hayik has set a new world record as the oldest person to play in a professional soccer match at the age of 73. He broke the record after playing as a goalkeeper for Israeli team Ironi Or Yehuda against Maccabi Ramat Gan on April 5, 2019. Hayik was officially recognised in an award ceremony attended by representatives from the Guinness World Record organisation. The previous record was held by Robert Carmona of Uruguay, who in 2015 played a professional match with Uruguay’s Pan de Azucar at the age of 53.