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Type: Prelims Only

  • Zoonotic Diseases: Medical Sciences Involved & Preventive Measures

    Corona Virus

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Coronavirus, Pneumonia

    Mains level: Underlying threats and India's preparedness against the virus

     

    Chinese scientists have confirmed can spread between human beings.

    Corona Virus

    • Corona viruses are large family of viruses, which cause illnesses to people and also circulate in animals including camels, cats and bats.
    • They cause illness ranging from the common cold to more severe diseases such as Middle East Respiratory Syndrome and Severe Acute Respiratory Syndrome.
    • 2019-nCoV is a new strain that has not been previously identified in humans.
    • Much remains to be understood about the new coronavirus, which was first identified in China earlier this month.
    • Not enough is known about 2019-nCoV to draw definitive conclusions about how it is transmitted, clinical features of disease, or the extent to which it has spread. The source also remains unknown.

    Why is it called the Wuhan Virus?

    • The first cases emerged in Wuhan in central China’s Hubei province.
    • On December 31 last year, authorities confirmed that a large number of patients with unexplained pneumonia were admitted in hospitals in the city.

    Symptoms of infection

    • According to the WHO, common signs include fever, cough, and shortness of breath. Serious infections can lead to pneumonia, kidney failure, and death.
    • Although human-to-human transmission has now been confirmed, the WHO says animals are the outbreak’s likely primary source. It is not known yet which animals are responsible.
    • To prevent the spread of all respiratory infections, the WHO in general asks people to cover their mouths and noses when coughing or sneezing, and to frequently wash their hands.
    • Direct contact with farm or wild animals should be avoided — similar outbreaks in the past, like the Severe Acute Respiratory Syndrome (SARS) emerged from markets where people were in contact with live animals.

    Why is there concern around the world?

    • People see a similarity with the SARS outbreak that infected over 8,000 people and killed around 775 in more than 35 countries worldwide in 2002-03.
    • SARS too, was caused by a mystery coronavirus, and started in China.
    • The source of the virus remained unknown for 15 years, until Chinese scientists in 2017 traced it back to a colony of horseshoe bats living in remote cave in Yunnan province.
    • The virus was carried by civet cats which are sold in markets in China.
    • Fears that SARS could reappear and memories of China misleading the rest of the world on the extent and seriousness of the outbreak have not gone away.
  • Innovations in Sciences, IT, Computers, Robotics and Nanotechnology

    Xenobot

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Xenobot

    Mains level: Utility of stem cells in bio-robotics

    Scientists in the US have created the world’s first “living machines” — tiny robots built from the cells of the African clawed frog that can move around on their own.

    Xenobot

    • Scientists have developed living robots from frogs stem cells.
    • They have named this millimetre-wide robots “xenobots” — after the species of aquatic frog found across sub-Saharan Africa from Nigeria and Sudan to South Africa, Xenopus laevis.
    • Scientists have repurposed living cells scraped from frog embryos and assembled them into entirely new life-forms.
    • The xenobots can move toward a target, perhaps pick up a payload (like a medicine that needs to be carried to a specific place inside a patient) — and heal themselves after being cut.
  • Wildlife Conservation Efforts

    Irrawaddy Dolphins

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Irrawaddy Dolphins

    Mains level: Not Much

    146 Irrawaddy dolphins were recently sighted in Chilika Lake of Odisha. The lake has highest single lagoon population of the aquatic mammal in the world.

    Irrawaddy Dolphins

    • IUCN Status: Endangered
    • Scientific Name: Orcaella brevirostris
    • Habitats: Lakes, Rivers, Estuaries, and Coasts

    • The Irrawaddy dolphin is a euryhaline species of oceanic dolphin found in discontinuous subpopulations near sea coasts and in estuaries and rivers in parts of the Bay of Bengal and Southeast Asia.
    • They are also found in coastal areas in South and Southeast Asia, and in three rivers: the Ayeyarwady (Myanmar), the Mahakam (Indonesian Borneo) and the Mekong.
    • The total population of these aquatic mammals in the world is estimated to be less than 7,500.
    • Of these, more than 6,000 Irrawaddy dolphins have been reported from Bangladesh, while the dolphin distribution in Chilika is considered to be the highest single lagoon population.
  • Telecom and Postal Sector – Spectrum Allocation, Call Drops, Predatory Pricing, etc

    Telecommunication Consumers Education and Protection Fund (TCEPF)

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: TCEPF, TRAI

    Mains level: Telecom regulation in India

    The Telecom Regulatory Authority of India (TRAI) has informed that telecom service providers will need to deposit all unclaimed money of consumers, including excess charges and security deposit, in the Telecommunication Consumers Education and Protection Fund (TCEPF).

    Telecommunication Consumers Education and Protection Fund (TCEPF)

    • The TCEPF Regulations, 2007 have been amended to provide the basic framework for depositing unclaimed money of consumers by service providers, maintenance of the TCEPF and other related aspects.
    • Any unclaimed / unrefundable amount belonging to consumers in the TCEP fund will be utilized for the welfare measures of the consumers.
    • With this amendment, service providers will deposit any unclaimed consumer money of any form such as excess charges, security deposit, plan charges of failed activations, or any amount belonging to a consumer, which service providers are unable to refund to consumers.

    Why such move?

    • The TRAI observed that there is a need to bring clarity among service providers in depositing money which they are unable to refund to the consumers.
    • While some service providers were depositing money only on account of excess billing revealed in the audit, others were depositing unclaimed money such as security deposits and plan charges of failed activations.
  • Health Sector – UHC, National Health Policy, Family Planning, Health Insurance, etc.

    Yada Yada Virus

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Yada Yada

    Mains level: NA

    A new virus detected in Australian mosquitoes has been provisionally named the Yada Yada virus (YYV).

    Yada Yada

    • It is an alphavirus, a group of viruses that the researchers described as small, single-stranded positive-sense RNA viruses.
    • It includes species important to human and animal health, such as Chikungunya virus and Eastern equine encephalitis virus.
    • They are transmitted primarily by mosquitoes and (are) pathogenic in their vertebrate hosts.
    • Unlike some other alphaviruses, Yada Yada does not pose a threat to human beings.
  • ISRO Missions and Discoveries

    GSAT-30 successfully launched

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: GSAT-30 and its applications

    Mains level: Not Much

    India’s first satellite of 2020, the GSAT-30 was successfully launched. The launch vehicle Ariane 5 VA-251 lifted off from Kourou Launch Base, French Guiana.

    GSAT-30 

    • GSAT-30 derives  its  heritage  from ISRO’s  earlier INSAT/GSAT  satellite  series  and  will  replace  INSAT-4A  in 
    • In the  days  ahead,  orbit-raising  manoeuvres  will  be  performed  to  place  the satellite  in  Geostationary  Orbit  (36,000  km  above  the  equator)  by  using  its  onboard  propulsion
    • During the  final  stages  of  its  orbit  raising  operations,  the  two  solar  arrays  and  the antenna  reflectors  of  GSAT-30  will  be
    • Following this,  the satellite will be  put in  its final orbital .     The satellite will  be  operational  after  the successful  completion  of  all in-orbit  tests.

    Utility of the satellite

    • GSAT-30 will provide  DTH  Television  Services, connectivity to  VSATs for  ATM,  Stock-exchange,  Television unlinking and Teleport  Services,  Digital  Satellite  News  Gathering  (DSNG)  and e-governance applications.
    • The satellite  will  also  be  used  for  bulk  data  transfer  for  a  host  of an emerging  telecommunication
  • Indian Navy Updates

    Exercise ‘Sahyog-Kaijin’

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Exercise ‘Sahyog-Kaijin’

    Mains level: NA

    Exercise ‘Sahyog-Kaijin’

    • Indian and Japanese coast guards participated in a joint exercise ‘Sahyog-Kaijin’ on January 16.
    • The aim behind ‘Sahyog-Kaijin’ is to strengthen the bond between the two countries.
    • One ship of the Japanese Coast Guard and four ships and an aircraft of the Indian Coast Guard participated in the joint exercise.
    • The drill is a five-day event.
  • Global Geological And Climatic Events

    Eruption of Taal Volcano

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Taal Volcano

    Mains level: Volcanism and its impact

     

    In the Philippines, a volcano called Taal on the island of Luzon; 50 km from Manila has recently erupted.

    Taal Volcano

    • Taal is classified as a “complex” volcano. Taal has 47 craters and four maars (a broad shallow crater).
    • It is situated at the boundaries of two tectonic plates — the Philippines Sea Plate and the Eurasian plate — it is particularly susceptible to earthquakes and volcanism.
    • A complex volcano, also called a compound volcano, is defined as one that consists of a complex of two or more vents, or a volcano that has an associated volcanic dome, either in its crater or on its flanks.
    • Examples include Vesuvius, besides Taal.
    • The Taal volcano does not rise from the ground as a distinct, singular dome but consists of multiple stratovolcanoes (volcanoes susceptible to explosive eruptions), conical hills and craters of all shapes and sizes.

    Threats posed

    • Taal’s closeness to Manila puts lives at stake. Manila is a few tens of kilometres away with a population of over 10 million.
    • The volcano is currently at alert level 4, which means that a “hazardous eruption” could be imminent within a few hours to a few days.
    • Hazardous eruptions are characterised by intense unrest, continuing seismic swarms and low-frequency earthquakes.

    Earlier records of eruption

    • Taal has erupted more than 30 times in the last few centuries. Its last eruption was on October 3, 1977.
    • An eruption in 1965 was considered particularly catastrophic, marked by the falling of rock fragments and ashfall.
    • Before that, there was a “very violent” eruption in 1911 from the main crater. The 1911 eruption lasted for three days, while one in 1754 lasted for seven months.
    • Because it is a complex volcano with various features, the kinds of eruption too have been varied. An eruption can send lava flowing through the ground, or cause a threat through ash in the air.
  • International Space Agencies – Missions and Discoveries

    Artemis Mission

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Artemis Mission

    Mains level: Manned mission on Moon

    NASA wants to send the first woman and the next man to the Moon by the year 2024, which it plans on doing through the Artemis lunar exploration program. An Indian American astronaut named Raja Chari is set to accompany the crew in this mission.

    Artemis Mission

    • In 2011, NASA began the ARTEMIS (Acceleration, Reconnection, Turbulence, and Electrodynamics of the Moon’s Interaction with the Sun) mission using a pair of repurposed spacecraft and in 2012 the Gravity Recovery and Interior Laboratory (GRAIL) spacecraft studied the Moon’s gravity.
    • For the program, NASA’s new rocket called the Space Launch System (SLS) will send astronauts aboard the Orion spacecraft a quarter of a million miles away from Earth to the lunar orbit.
    • The astronauts going for the Artemis program will wear newly designed spacesuits, called Exploration Extravehicular Mobility Unit, or xEMU.
    • These spacesuits feature advanced mobility and communications and interchangeable parts that can be configured for spacewalks in microgravity or on a planetary surface.
  • Wildlife Conservation Efforts

    Kaziranga National Park

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Major species found in Kaziranga NP

    Mains level: NA

    Kaziranga, home of the world’s most one-horned rhinos, has 96 species of wetland birds — one of the highest for wildlife preserves in India.

    Kaziranga National Park

    • It is a protected area in the northeast state of Assam.
    • Spread across the floodplains of the Brahmaputra River, its forests, wetlands and grasslands are home to tigers, elephants and the world’s largest population of Indian one-horned rhinoceroses.
    • Much of the focus of conservation efforts in Kaziranga are focused on the ‘big four’ species— rhino, elephant, Royal Bengal tiger and Asiatic water buffalo.
    • The 2018 census had yielded 2,413 rhinos and approximately 1,100 elephants.
    • The tiger census of 2014 said Kaziranga had an estimated 103 tigers, the third highest population of the striped cat in India after Jim Corbett National Park (215) in Uttarakhand and Bandipur National Park (120) in Karnataka.
    • Kaziranga is also home to nine of the 14 species of primates found in the Indian subcontinent.