Current Affairs Quiz - April, 2019

Notes:
The Hump-backed Mahseer, also known as ‘Tor remadevii’ in scientific terms, is a critically endangered species as per the International Union for Conservation of Nature (IUCN). This iconic and highly-valued freshwater fish, termed as the ‘tiger of the water’, inhabits the Cauvery river basin, including Kerala’s Pambar, Kabini and Bhavani rivers. The fish earns its megafauna status by reaching up to a measurement of 1.5m and a weight of 55 kg. Its endangered title also accompanies five other species, including two wild orchids, the Arabian scad, and two wild coffee species exclusive to a few locales in the Western Ghats.

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 Hongkou district of Shanghai has recently claimed to have the world’s first district with 5G coverage and a broadband gigabit network. It conducted trial runs of the 5G network, backed by telecom services provider China Mobile. Shanghai also aims to build over 10,000 5G base stations by the end of this year and the number of 5G base stations could cross 30,000 in 2021. 5G is the next generation of cellular technology with download speed 10 to 100 times faster than the 4G LTE networks.

Notes:
Vadodra-based artist Raju Baraiya has been chosen as the Glenfiddich’s Emerging Artist of the Year 2019. He will represent India at the Glenfiddich Artists in Residence (AiR) programme where he will spend three months at the Glenfiddich Distillery in Scotland with artists from around the world. Baraiya will also be awarded Rs 10 lakh, which includes an international allowance of Rs 1,20,000 per month and a work allowance of Rs 5,00,000; besides being given a solo show at Art District XIII Gallery in New Delhi. Baraiya’s work takes inspiration from observing and diagnosing the rural in relation to the urban and vice-versa. His practice springs out of this shift from a strong rural background to an urban one. The artist has been deriving imagery from these seemingly ambiguous notions of the urban and the rural, and the complexities between the two spaces create a common meeting ground for him to explore through an impression he holds of them. With his art, he aims to translate the ever evolving image of this convergence.

Notes:
IIT Kharagpur has signed a Memorandum of Understanding (MoU) with the Pullela Gopichand Badminton Academy (PGBA) to develop research and training module for the trainees of the Hyderabad-based sports facility. The thrust area of the collaboration is to promote health and wellbeing of sportspersons and coaches for enhancing the quality of performance and resilience. Players and coaches from PGBA will benefit from these programs. Further, the coaches will also be trained on how to use that knowledge while training players. Under the collaboration, IIT-KGP will also set up a sports academy in collaboration with Gopichand. The academy would promote collaborative research related to happiness in sports in general and badminton in particular, and science and technology in sports training. The scope would also include joint monitoring and use of materials used in general and badminton in particular by IIT Kharagpur and PGBA. A sum of Rs10 crore has been allocated to develop modern sports facilities at IIT-Kgp.

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:
Chicago has created history by electing an African-American woman as its mayor for the first time. Lori Lightfoot is a former federal prosecutor and practicing lawyer who has never before held elected office. She won the city’s mayoral race by a huge margin. She will also be Chicago’s first openly gay mayor. Lightfoot’s primary proposals include increasing access to affordable housing, creating an office of public safety to reduce crime and reform policing, and pushing through a real estate transfer tax to help combat homelessness. She also backs abolishing US Immigration and Customs Enforcement. Lightfoot will take over office from Mayor Rahm Emanuel, who previously served as chief of staff under former President Barack Obama.

Notes:
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:
The Japan Aerospace Exploration Agency (JAXA) has said that its Hayabusa2 spacecraft has successfully blasted the surface of an asteroid Ryugu to make a crater on its surface. The move will pave the way for the collection of underground samples for possible clues to the origin of the solar system. For this, the Hayabusa2 dropped a “small carry-on impactor” made of copper onto the asteroid and the spacecraft safely evacuated and remained intact. Now, JAXA is analyzing data to examine if or how the impactor made a crater. The copper explosive is the size of a baseball weighing 2 kg. If successful, it would be the first time for a spacecraft to take such materials. The asteroid, named Ryugu after an undersea palace in a Japanese folktale, is about 300 million kilometers (180 million miles) from Earth. Earlier, Hayabusa2 successfully touched down on a tiny flat surface on the boulder-rich asteroid in February 2019, when the spacecraft also collected some surface dust and small debris.

Notes:
C R Anandavally (67), the well-known dubbing artist in the Malayalam film industry, has passed away on April 5, 2019. She began her film career doing small roles in various Malayalam films beginning with “Eanippadikkal” in 1973 and lent her voice to actress Rajasri in the film “Devi Kanyakumari” in 1974. The 1980 movie ‘Manjil Virinja Pookkal’ in which she dubbed for actress Poornima Jayaram became a turning point in her career and she was flooded with offers and had been active since then. Among the leading heroines she has lent her voice are Geetha, ‘Silk’ Smitha, Sumalatha, Madhavi, Menaka, Ambika, Urvasi, Jayapradha, Karthika, Parvathy, Gauthami, Suhasini, Sobhana, Revathi, Nanditha Bose and Khushboo. Anandavally won a Kerala State Award for the Malayalam film ‘Aadharam’ in which she dubbed for actress Geetha. Hailing from Kollam, Anandavally had also acted in Kerala Peoples Arts Club (KPAC) dramas.