DAILY CURRENT AFFAIRS IAS | UPSC Prelims and Mains Exam – 6th December 2023
Archives (PRELIMS & MAINS Focus) Chandrayaan-3 Syllabus Prelims – SCIENCE AND TECHNOLOGY Context: Recently, ISRO brought back the Chandrayaan-3 propulsion module from the Moon to Earth’s orbit. About Chandrayaan-3:- IMAGE SOURCE: IASBABA Chandrayaan-3 is the successor to the Chandrayaan-2 mission. Launch Vehicle: Mark-III (LVM3). Launched site: Satish Dhawan Space Centre (SDSC), Sriharikota, Andhra Pradesh. Composition: It consists of an indigenous Lander module (LM), a Propulsion module (PM), and a Rover. Lander: a spacecraft that descends towards and comes to rest on, the surface of an astronomical body. Propulsion module: a box-like structure, mounted with a large solar panel on one side and a large cylinder on top. Rover: a small vehicle that can move over rough ground, often used on the surface of other planets, sometimes controlled from the earth. The Lander and the Rover have scientific payloads to carry out experiments on the lunar surface. There will not be any orbiters like Chandrayaan 2 in it. Objectives of Chandrayaan-3 mission:- To demonstrate a Safe and Soft Landing on the Lunar Surface. To demonstrate Rover roving on the moon. To conduct in-situ scientific experiments. Lander payloads:- Chandra’s Surface Thermophysical Experiment (ChaSTE): to measure the thermal conductivity and temperature Instrument for Lunar Seismic Activity (ILSA): for measuring the seismicity around the landing site Langmuir Probe (LP): to estimate the plasma density and its variations. A passive Laser Retroreflector Array from NASA is accommodated for lunar laser ranging studies. Rover payloads:- Alpha Particle X-ray Spectrometer (APXS) and Laser Induced Breakdown Spectroscope (LIBS): for deriving the elemental composition near the landing site. Propulsion Module Payload:- Spectro-polarimetry of Habitable Planet Earth (SHAPE): Future discoveries of smaller planets in reflected light would allow us to probe into a variety of Exo-planets which would qualify for habitability or for the presence of life. About GSLV-Mk III:- Weighs: 641 tones. Capacity: GSLV can take 10,000-kg satellites to lower earth orbits. It is also known as the Launch Vehicle Mark 3 (LVM3). It is a three-stage vehicle. It has two solid motor strap-ons, a liquid propellant core stage, and a cryogenic stage. It is the heaviest and the shortest among India’s operational launch vehicles MUST READ: Gaganyaan SOURCE: INDIA TODAY PREVIOUS YEAR QUESTIONS Q.1) Which one of the following countries has its own Satellite Navigation System? (2023) Australia Canada Israel Japan Q.2) Consider the following statements : (2023) Ballistic missiles are jet-propelled at subsonic speeds throughout their flights, while cruise missiles are rocket-powered only in the initial phase of flight. Agni-V is a medium-range supersonic cruise missile, while BrahMos is a solid-fuelled intercontinental ballistic missile. Which of the statements given above is/are correct? 1 only 2 only Both 1 and 2 Neither 1 nor 2 Nugu Wildlife Sanctuary Syllabus Prelims –ENVIRONMENT AND ECOLOGY Context: Recently, the National Tiger Conservation Authority (NTCA) has recommended to the authorities that the Nugu Wildlife Sanctuary abutting the Bandipur Tiger Reserve be declared as a core critical tiger habitat. Background:- This followed a site visit by Assistant Inspector General of Forests, NTCA, Ms. Harini Venugopal. The visit followed a slew of issues raised by conservation activist Giridhar Kulkarni pertaining to Bandipur. About Nugu Wildlife Sanctuary:- Location: Mysuru district, Karnataka. Geographic Area: Nugu Wildlife Sanctuary encompasses 30.32 sq km. (Katarniaghat Wildlife Sanctuary (KWS)) The northern part of Nugu WLS is occupied by the Nugu Reservoir. Nugu is a vulnerable area as far as human–elephant conflicts are concerned. In 1974, Nugu was declared a Wildlife Sanctuary. It was added to the Nilgiri Biosphere Reserve in the year 2003-2004. The average amount of rainfall received in this area is Most of the vegetation in the forests is dry, deciduous, interspersed with patches of plantations. Flora: Anogeissus latifolia, Tectonia grandis, Terminalia tomentosa etc. Fauna: elephant, leopards, jungle cats, wild pig, spotted deer, sambar deer, barking deer, etc. MUST READ: Tungareshwar Wildlife Sanctuary SOURCE: THE HINDU PREVIOUS YEAR QUESTIONS Q.1) Consider the following fauna : (2023) Lion-tailed Macaque Malabar Civet Sambar Deer How many of the above are generally nocturnal or most active after sunset? Only one Only two All three None Q.2) Among the following Tiger Reserves, which one has the largest area under “Critical Tiger Habitat”? (2020) Corbett Ranthambore Nagarjunsagar-Srisailam Sunderbans Guillain-Barre syndrome Syllabus Prelims –SCIENCE AND TECHNOLOGY Context: Recent research found out that the risk of developing ‘extremely rare’ Guillain-Barre syndrome increases due to COVID-19. About Guillain-Barre syndrome:- Guillain-Barre (gee-YAH-buh-RAY) syndrome is a rare disorder in which the body’s immune system attacks your nerves. Weakness and tingling in your hands and feet are usually the first symptoms. These sensations can quickly spread, eventually paralyzing your whole body. In its most severe form Guillain-Barre syndrome is a medical emergency. Most people with the condition must be hospitalized to receive treatment. The exact cause of Guillain-Barre syndrome is unknown. But two-thirds of patients report symptoms of an infection in the six weeks preceding. These include COVID-19, respiratory or gastrointestinal infection or Zika virus. Symptoms:- A pins and needles sensation in your fingers, toes, ankles or wrists Weakness in your legs that spreads to your upper body Unsteady walking or inability to walk or climb stairs Difficulty with facial movements, including speaking, chewing or swallowing Double vision or inability to move the eyes Severe pain that may feel achy, shooting or cramp-like and may be worse at night Difficulty with bladder control or bowel function Rapid heart rate Low or high blood pressure Difficulty breathing Types:- Guillain-Barre syndrome has several forms. The main types are: Acute inflammatory demyelinating polyradiculoneuropathy (AIDP): the most common form in North America and Europe. The most common sign of AIDP is muscle weakness that starts in the lower part of your body and spreads upward. Miller-Fisher syndrome (MFS): in which paralysis starts in the eyes. MFS is also associated with unsteady gait. MFS is less common in the U.S. but more common in Asia. Acute motor axonal neuropathy (AMAN) and acute motor-sensory axonal neuropathy (AMSAN):are less common in the U.S. But AMAN and AMSAN are more frequent in China, Japan and
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