Current Affairs Quiz - April, 2019

Notes:
South Korea has won the 2019 Sultan Azlan Shah Hockey tournament. In the final, they defeated five time champion India in a penalty shootout 4-2 at Ipoh in Malaysia on April 1. Till the stipulated time both the teams had a score of 1 goal each. Even India was leading with one goal till half time. Simaranjit Singh hit a goal for India. Jang Jong Hyun scored the goal for South Korea. Hosts Malaysia defeated Canada 4-2 and secured the 3rd place. Asian games Gold medalist Japan stood at 5th place, defeating Poland 6-1.

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:
Researchers led by Kavli Institute for the Physics and Mathematics of the Universe in Japan has put a theory speculated by the late Stephen Hawking to its most rigorous test to date, and their results have ruled out the possibility that primordial black holes smaller than a tenth of a millimeter make up most of dark matter. They used the gravitational lensing effect to look for primordial black holes between Earth and the Andromeda galaxy. However, gravitational lensing effects are very rare events because it requires a star in the Andromeda galaxy, a primordial black hole acting as the gravitational lens, and an observer on Earth to be exactly in line with one another. In order to maximise the chances of capturing an event, the researchers used the Hyper Suprime-Cam digital camera on the Subaru telescope in Hawaii, which can capture the whole image of the Andromeda galaxy in one shot. Taking into account how fast primordial black holes are expected to move in interstellar space, the team took multiple images to be able to catch the flicker of a star as it brightens for a period of a few minutes to hours due to gravitational lensing. The team’s results showed primordial black holes can contribute no more than 0.1% of all dark matter mass. Therefore, it is unlikely the theory is true.

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:
For the second successive year, Telangana has been ranked first in e-learning training programme of Department of Personal and Training (DoPT) of the Government India. In FY 2018-19, Dr. MCR HRD Institute had enrolled over 20,000 field staff in different districts of the State to impart training on 12 soft skill modules and three domain-specific modules on the RTI, office procedures, and finance and accounts, apart from Sustainable Development Goals (SDGs). The institute is also mentoring Punjab, Madhya Pradesh, J&K, Odisha, Uttarakhand, and Gujarat to guide trainers for e-learning training programme and develop modules in regional languages to spread the Comprehensive Online Modified Modules on Induction Training (COMMIT) programme as a national mission.

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:
Brunei has recently introduced harsh new Islamic laws that make adultery and homsexuality punishable by stoning to death. The new measures also cover a range of other crimes, including punishment for theft by amputation. The move makes Brunei the first place in Southeast Asia to have a sharia penal code at the national level. The new law mostly applies to Muslims, though some aspects will also apply to non-Muslims. It stipulates the death penalty for a number of offences, including rape, adultery, sodomy, robbery and insulting or defaming the Prophet Muhammad. It also introduces public flogging as punishment for abortion and criminalises exposing Muslim children to the beliefs and practices of any religion other than Islam.

Notes:
Phayeng Village of Manipur has been tagged as the India’s first carbon-positive settlement. As part of the carbon-positive village project, Phayeng will receive a grant of Rs10 crore in phases to facilitate afforestation in the catchment of river Maklang that flows along the village. The fund will also be utilised for creation of water bodies, introduction of climate change-resilient varieties of crops, installing solar lights, for setting up a community piggery and poultry farm, an eco-resort, replacing firewood in kitchen with cooking stoves and an indigenous knowledge centre in the village. A village is given the Carbon-Positive Tag if it sequesters more carbon than it emits, slowing the accumulation of greenhouse gases and mitigating the effects of climate change. Phayeng is a scheduled caste village of the Chakpa community in Imphal West district and its conservation efforts are mainly linked to the belief that the forest is a sacred grove. It is surrounded by three densely forested hillocks with fruit trees at centre and a stream flowing through it.

Notes:
Chinese scientists have discovered a possible “death switch” mechanism in plant’s immune system that triggers infected cells to self-destruct, thus limiting the spread of the disease and keeping other parts of the plant healthy. This is as per the findings published in the journal ‘Science’. The discovery provides clues to cell death control and immunity for plants. The researchers hope further research can lead to a new generation of disease-resistant crops that use significantly less pesticide and are more environmentally friendly. The research was done by scientists from Tsinghua University and the Chinese Academy of Sciences’ Institute of Genetics and Development Biology. The ‘death switch’ is usually harmless to the plant because it only affects diseased cells, which are a tiny portion of the entire plant.