Modern Indian History-Events and Personalities

[pib] Sacred Ensembles of the Hoysalas

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Sacred Ensembles of the Hoysalas

Mains level: Temple architecture of India

The Hoysala Temples of Belur, Halebid and Somnathapura in Karnataka have been finalized as India’s nomination for consideration as World Heritage for the year 2022-2023.

Sacred Ensembles of the Hoysalas

  • The sacred ensembles of the Hoysalas are extraordinary expressions of spiritual purpose and vehicles of spiritual practice and attainment.
  • The sacred ensembles of the Hoysalas at Belur and Halebid are the finest, most exquisite, and most representative examples of the artistic genius and cultural accomplishments of the Hoysalas remaining today.

 [I] Belur: Chennakeshava Temple Complex

  • The Chennakeshava temple complex was at the center of the old walled town located on the banks of the Yagachi River.
  • The complex itself was walled in a rectangular campus with four rectilinear streets around it for ritual circumambulation of the deity.
  • Construction of the temple commenced in 1117 AD and took a 103 years to complete.
  • The temple was devoted to Vishnu.
  • The richly sculptured exterior of the temple narrate scenes from the life of Vishnu and his reincarnations and the epics, Ramayana, and Mahabharata.
  • However, some of the representations of Shiva are also included.
  • Consecrated on a sacred site, the temple has remained continuously worshipped since its establishment and remains until today as a site of pilgrimage for Vaishnavites.

[II] Halebid: Hoysaleshwara Temple

  • At the zenith of the Hoysala empire, the capital was shifted from Belur to Halebid that was then known as Dorasamudhra.
  • The Hoysaleshwara temple at Halebidu is the most exemplary architectural ensemble of the Hoysalas extant today.
  • Built in 1121CE during the reign of the Hoysala King, Vishnuvardhana Hoysaleshwara.
  • The temple, dedicated to Shiva, was sponsored and built by wealthy citizens and merchants of Dorasamudra.
  • The temple is most well-known for the more than 240 wall sculptures that run all along the outer wall.
  • Halebid has a walled complex containing of three Jaina basadi (temples) of the Hoysala period as well as a stepped well.

[III] Somnathpur: Kesava Temple

  • The Keshava temple at Somanathapura is another magnificent Hoysala monument, perhaps the last.
  • This is a breathtakingly beautiful Trikuta Temple dedicated to Lord Krishna in three forms – Janardhana, Keshava and Venugopala.
  • Unfortunately, the main Keshava idol is missing, and the Janardhana and Venugopala idols are damaged.
  • Still this temple is worth a visit just to soak in the artistry and sheer talent of the sculptors who created this magnificent monument to the Divine.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Air Pollution

What is Pollution-Under-Control (PUC) Certificate?

Note4Students

From UPSC perspective, the following things are important :

Prelims level: PUC Certificate

Mains level: Not Much

Delhi govt will soon make PUC certificate mandatory for fuel at filling stations.

What is PUC Certificate?

  • The PUC certificate is a document that any person driving a motor vehicle can be asked to produce by a police officer in uniform authorized by the state government.
  • These issue certificates if a vehicle is found complying with the prescribed emission norms.
  • Since the Motor Vehicles (Amendment) Act, 2019 came into force, PUC certificate has been made mandatory.
  • A PUC certificate contains information such as the vehicle’s license plate number, PUC test reading, date on which the PUC test was conducted and the expiry date.

How is a pollution control check carried out?

  • The computerized model for pollution check was developed by the Society of Indian Automobile manufacturers.
  • A gas analyzer is connected to a computer, to which a camera and a printer are attached.
  • The gas analyzer records the emission value and sends it to the computer directly, while the camera captures the license plate of the vehicle.
  • Subsequently, a certificate may be issued if the emission values are within the limits.

Fines for non-compliance

  • The test costs between Rs 60 and Rs 100.
  • The validity of the test is one year for BS IV vehicles and three months for others.
  • The fine for PUC violations has now gone up to Rs 10,000; it used to be Rs 1,000 for the first offence and Rs 2,000 for subsequent violations before the amendments came into force.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Coronavirus – Disease, Medical Sciences Involved & Preventive Measures

NeoCov Coronavirus found in Bats

Note4Students

From UPSC perspective, the following things are important :

Prelims level: NeoCoV

Mains level: Not Much

NeoCov coronavirus found in bats may pose threat to humans in the future, scientists caution.

Coronavirus: A quick backgrounder

  • Coronaviruses are a large family of viruses that are known to infect animals and humans.
  • They are largely categorized into four genera — alpha, beta, gamma, and delta.
  • Broadly speaking, alpha and beta coronaviruses commonly infect mammals such as bats and humans, while Gamma and Delta mainly infect birds.

Infecting humans: Through ‘Zoonotic Spillover’

  • While animals, including bats, are generally considered as the reservoirs of coronaviruses, rarely spillover events could occur.
  • It is possible for viruses that infect animals to jump to humans, a process which is known as zoonotic spillover.
  • Many major infectious diseases, including COVID-19, is widely thought to be a result of spillover.

COVID-19 Pandemic

  • SARS-CoV-2, the coronavirus responsible for the COVID-19 pandemic, belongs to the genus of beta coronavirus.
  • It is in fact the 7th type of coronavirus known to infect and cause severe disease in humans.

How does it affect humans?

  • How a coronavirus latches onto special receptors on host cells depends on a key part of the virus known as its receptor-binding domain.
  • The differences in the receptor-binding domain of coronaviruses are therefore what determine the type of host receptor the virus will use and thus the host that it will be able to infect.
  • There are currently 4 well-characterized receptors for coronaviruses, including ACE2, which is used by SARS-CoV and SARS-CoV-2, and DPP4 used by MERS-CoV.

What is NeoCoV?

  • NeoCoV is a bat coronavirus that was first identified in 2011.
  • It was identified in a species of bats known as Neoromicia, which is where the name NeoCoV was derived from.
  • Commonly known as aloe bats, this species is distributed in the Afro-Malagasy region.
  • NeoCoV shares an 85% similarity to MERS-CoV in the genome sequence, making it the closest known relative of MERS-CoV.

Does NeoCoV infect humans and cause high mortality?

  • It is important to note that inherently, NeoCoV cannot interact with human receptors, implying that in its current form the virus cannot infect humans.
  • NeoCoV does not infect humans yet and has thus not caused any deaths.

What does the preprint say and why is it important?

  • The study reports that despite their similarity, MERS-CoV and NeoCoV use different receptors to infect cells.
  • The bat coronavirus NeoCoV was found to use bat ACE2 receptors for efficiently entering cells.
  • The interaction between NeoCoV and bat ACE2 receptors is different from what is seen in other coronaviruses that utilize ACE2.
  • However, specific mutations artificially created in the receptor-binding domain of NeoCoV can enhance its efficiency to interact with human ACE2 receptors.
  • These mutations have not yet been seen in NeoCov isolates from natural settings.

Conclusion

  • SARS-CoV-2 is not the first coronavirus to infect humans and cause large disease outbreaks, nor is it likely to be the last.
  • The study highlights that through further adaptation, coronaviruses like NeoCoV or other related viruses could potentially gain the ability to infect humans.

Way forward

  • To prevent future outbreaks, it will thus be important to monitor this family of viruses for potential zoonosis while continuing research efforts on understanding the complex receptor usage of different coronaviruses.
  • Genomic surveillance of human and animal viruses is, therefore, the key to understanding the spectrum of viruses, and possibly provides early warning to potential spillover events.

 

Try this question from CSP 2021:

Q. The term ACE2′ is talked about in the context of:

(a) genes introduced in the genetically modified plants

(b) development of India’s own satellite navigation system

(c) radio collars for wildlife tracking

(d) spread of viral diseases

 

Post your answers here.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

ISRO Missions and Discoveries

Small Satellite Launch Vehicle (SSLV)

Note4Students

From UPSC perspective, the following things are important :

Prelims level: SSLV, PSLV, GSLV

Mains level: Commercial space activities in India

The new chairman of the ISRO Dr S Somanath has indicated inauguration of indigenous new launch rockets, called the Small Satellite Launch Vehicle (SSLV).

What is SSLV?

  • The SSLV is a small-lift launch vehicle being developed by the ISRO with payload capacity to deliver:
  1. 600 kg to Low Earth Orbit (500 km) or
  2. 300 kg to Sun-synchronous Orbit (500 km)
  • It would help launching small satellites, with the capability to support multiple orbital drop-offs.
  • In future a dedicated launch pad in Sriharikota called Small Satellite Launch Complex (SSLC) will be set up.
  • A new spaceport, under development, near Kulasekharapatnam in Tamil Nadu will handle SSLV launches when complete.
  • After entering the operational phase, the vehicle’s production and launch operations will be done by a consortium of Indian firms along with NewSpace India Limited (NSIL).

Vehicle details

(A) Dimensions

  • Height: 34 meters
  • Diameter: 2 meters
  • Mass: 120 tonnes

(B) Propulsion

  • It will be a four stage launching vehicle.
  • The first three stages will use Hydroxyl-terminated polybutadiene (HTPB) based solid propellant, with a fourth terminal stage being a Velocity-Trimming Module (VTM).

SSLV vs. PSLV: A comparison

  • The SSLV was developed with the aim of launching small satellites commercially at drastically reduced price and higher launch rate as compared to Polar SLV (PSLV).
  • The projected high launch rate relies on largely autonomous launch operation and on overall simple logistics.
  • To compare, a PSLV launch involves 600 officials while SSLV launch operations would be managed by a small team of about six people.
  • The launch readiness period of the SSLV is expected to be less than a week instead of months.
  • The SSLV can carry satellites weighing up to 500 kg to a low earth orbit while the tried and tested PSLV can launch satellites weighing in the range of 1000 kg.
  • The entire job will be done in a very short time and the cost will be only around Rs 30 crore for SSLV.

Significance of SSLV

  • SSLV is perfectly suited for launching multiple microsatellites at a time and supports multiple orbital drop-offs.
  • The development and manufacture of the SSLV are expected to create greater synergy between the space sector and private Indian industries – a key aim of the space ministry.

Back2Basics:

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Tribes in News

Who are the Chakmas and Hajongs?

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Chakmas and Hajongs

Mains level: Not Much

In Arunachal Pradesh, the Chakma and Hajong people are feeling heat since the State government decided to conduct a special census in December 2021.

What is the news?

  • The North-Eastern States have had a history of being paranoid about outsiders outnumbering the indigenous communities and taking their land, resources and jobs.
  • The threat from “non-locals” in a specific area has also been perceived to be from communities indigenous elsewhere in the region.
  • This has often led to conflicts such as the recent attacks on non-tribal people in Meghalaya’s capital Shillong or an Assam-based group’s warning to a fuel station owner in Guwahati against employing Bihari workers.

Who are the Chakmas and Hajongs?

  • The Chakmas and Hajongs of Arunachal Pradesh are migrants from the Chittagong Hill Tracts of erstwhile East Pakistan, now Bangladesh.
  • Displaced by the Kaptai dam on the Karnaphuli River in the 1960s, they sought asylum in India.
  • They settled in relief camps in the southern and south-eastern parts of Arunachal Pradesh from 1964 to 1969.
  • A majority of them live in the Changlang district of the State today.
  • Mizoram and Tripura have a sizeable population of the Buddhist Chakmas while the Hindu Hajongs mostly inhabit the Garo Hills of Meghalaya and adjoining areas of Assam.

Why was a special census of the two communities planned?

  • The Arunachal Government has cited to resolve the protracted issue of racial antagonism.
  • It seeks to rehabilitate the Chakma-Hajongs in other States.
  • The census plan was however dropped after the Chakma Development Foundation of India petitioned the PMO.

Issues with the census

  • Chakma organizations said the census was nothing but racial profiling of the two communities because of their ethnic origin and violated Article 14 of the Indian Constitution.
  • It is against Article 1 of the International Convention on the Elimination of All Forms of Racial Discrimination, ratified by India.

What is their citizenship status?

  • Members of the two communities had been settled in Arunachal Pradesh six decades ago with a rehabilitation plan, allotted land and provided with financial aid depending on the size of their families.
  • Although local tribes claim the population of the migrants has increased alarmingly, the 2011 census says there are 47,471 Chakmas and Hajongs in the State.
  • They are granted citizenship by birth under Section 3 of the Citizenship Act, 1955, after having been born before July 1, 1987, or as descendants of those who were born before this date.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Festivals, Dances, Theatre, Literature, Art in News

What is Beating Retreat Ceremony?

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Beating Retreat Ceremony

Mains level: Important national festivals and their significance

There are 26 tunes that will be played at Beating Retreat this year on January 29 skipping the “Abide with Me” tune.

What is the Beating Retreat function?

  • ‘Beating Retreat’ marks a centuries old military tradition, when the troops ceased fighting, sheathed their arms and withdrew from the battlefield and returned to the camps at sunset at the sounding of the Retreat.
  • The military tradition began in 17th century England, when King James II ordered his troops to beat drums, lower flags and organise a parade to announce the end of a day of combat.
  • The ceremony was then called ‘watch setting’ and took place at sunset after firing a single round from the evening gun.
  • The ceremony is currently held by Armed Forces in the UK, US, Canada, New Zealand, Australia, and India, among others.

How did it begin in India?

  • Beating the Retreat’ has emerged as an event of national pride when the Colours and Standards are paraded.
  • The ceremony traces its origins to the early 1950s when Major Roberts of the Indian Army indigenously developed the unique ceremony of display by the massed bands.
  • Section D (Ceremonials) at the Ministry of Defence conducts the event.
  • The ceremony consists of musical performances by the bands, who each year play Indian and western tunes.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Blockchain Technology: Prospects and Challenges

What are Non-Fungible Tokens (NFTs)?

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Non-Fungible Tokens

Mains level: Challenges associated to Cryptocurrency

A French luxury fashion brand is suing American digital artist who created a series of NFTs (Non-Fungible Tokens), a rapidly growing part of the cryptoworld.

Non-Fungible Tokens

  • An NFT is a unique, irreplaceable token that can be used to prove ownership of digital assets such as music, artwork, even tweets and memes.
  • The term ‘non-fungible’ simply means that each token is different as opposed to a fungible currency such as money (a ten-rupee note can be exchanged for another and so on).
  • Cryptocurrencies such as Bitcoin and Ethereum are also fungible, which means that one Bitcoin can be exchanged for another.
  • But an NFT cannot be exchanged for another NFT because the two are different and therefore unique.
  • Each token has a different value, depending on which asset it represents.

How does NFT transaction take place?

  • NFT transactions are recorded on blockchains, which is a digital public ledger, with most NFTs being a part of the Ethereum blockchain.
  • NFTs became popular in 2021, when they were beginning to be seen by artists as a convenient way to monetize their work.

Why are they in high demand?

  • One of the other attractions is that NFTs are a part of a new kind of financial system called decentralized finance (DeFi), which does away with the involvement of institutions such as banks.
  • For this reason, decentralized finance is seen as a more democratic financial system because it makes access to capital easier for lay people by essentially eliminating the role of banks and other associated institutions.
  • Even so, because NFTs operate in a decentralized system, any person can sell a digital asset as one.
  • This can sometimes create problems. For instance, if you were to sell someone else’s artwork as an NFT, you could essentially be infringing on a copyright.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Wildlife Conservation Efforts

Kerala gets its first-ever Scientific Bird Atlas

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Kerala Bird Atlas (KBA)

Mains level: Not Much

The Kerala Bird Atlas (KBA), the first-of-its-kind State-level bird atlas in India, has created solid baseline data about the distribution and abundance of bird species across all major habitats, giving an impetus to futuristic studies.

Kerala Bird Atlas (KBA)

  • The KBA has been prepared based on systematic surveys held twice over 60 days a year during the wet (July to September) and dry (January to March) seasons between 2015 and 2020.
  • It was conducted as a citizen science-driven exercise with the participation of over 1,000 volunteers of the birdwatching community.
  • The KBA accounts for nearly three lakh records of 361 species, including 94 very rare species, 103 rare species, 110 common species, 44 very common species, and 10 most abundant species.
  • It was found that the species count was higher during the dry season than in the wet season while species richness and evenness were higher in the northern and central districts than in the southern districts.

Significance of KBA

  • The KBA offers authentic, consistent and comparable data through random sampling from the geographical terrain split.
  • It is arguably Asia’s largest bird atlas in terms of geographical extent, sampling effort and species coverage derived from the aggregation of 25,000 checklists.
  • The KBA is considered to be a valuable resource for testing various ecological hypotheses and suggesting science-backed conservation measures.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Festivals, Dances, Theatre, Literature, Art in News

UNESCO tag sought for Living Root Bridges of Meghalaya

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Root Bridges

Mains level: NA

The Zoological Survey of India (ZSI) has underlined some green rules for the living root bridges of Meghalaya to get the UNESCO World Heritage Site tag.

Living Root Bridges

  • A living root bridge is a type of simple suspension bridge formed of living plant roots by tree shaping.
  • They are common in the southern part of the Northeast Indian state of Meghalaya. Such a bridge is locally called jingkieng jri.
  • They are handmade from the aerial roots of rubber fig trees (Ficus elastic) by the Khasi and Jaintia peoples of the mountainous terrain along the southern part of the Shillong Plateau.
  • Most of the bridges grow on steep slopes of subtropical moist broadleaf forest between 50m and 1150m above sea level.

Why is it so unique?

  • As long as the tree from which it is formed remains healthy, the roots in the bridge can naturally grow thick and strengthen.
  • New roots can grow throughout the tree’s life and must be pruned or manipulated to strengthen the bridge.
  • Once mature some bridges can have as many as 50 or more people crossing, and have a lifespan of up to 150 years.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Modern Indian History-Events and Personalities

Who was Sri Ramanuja?

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Ramanuja, Vishishtadvaita

Mains level: Not Much

Work is going apace on the 216-ft tall ‘Statue of Equality’ of the 11th century reformer and Vaishnavite saint, Sri Ramanuja, to be unveiled by PM Modi next month in Hyderabad.

Statue of Equality

  • The ‘Statue of Equality’, as it is called, is being installed to mark the 1,000th birth anniversary of Sri Ramanuja.
  • It was built of panchaloha, a combination of gold, silver, copper, brass and zinc, by the Aerospun Corporation in China and shipped to India.
  • It is the second largest in the world in sitting position of the saint.
  • The monument will be surrounded by 108 “Divya Desams” of Sri Vaishnavite tradition (model temples) like Tirumala, Srirangam, Kanchi, Ahobhilam, Badrinath, Muktinath, Ayodhya, Brindavan, Kumbakonam and others.
  • The idols of deities and structures were constructed in the shape at the existing temples.

Who was Sri Ramanuja?

Ramanuja or Ramanujacharya (1017–1137 CE) was a philosopher, Hindu theologian, social reformer, and one of the most important exponents of Sri Vaishnavism tradition within Hinduism.

  • His philosophical foundations for devotionalism were influential to the Bhakti movement.

His works

  • Ramanuja’s philosophical foundation was qualified monism and is called Vishishtadvaita in the Hindu tradition.
  • His ideas are one of three subschools in Vedanta, the other two are known as Adi Shankara’s Advaita (absolute monism) and Madhvacharya’s Dvaita (dualism)
  • Important writings include:
  1. Vedarthasangraha (literally, “Summary of the Vedas meaning”),
  2. Sri Bhashya (a review and commentary on the Brahma Sutras),
  3. Bhagavad Gita Bhashya (a review and commentary on the Bhagavad Gita), and
  • The minor works titled Vedantapida, Vedantasara, Gadya Trayam (which is a compilation of three texts called the Saranagati Gadyam, Sriranga Gadyam and the Srivaikunta Gadyam), and Nitya Grantham.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Forest Conservation Efforts – NFP, Western Ghats, etc.

Declaration on Forests and Land Use

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Declaration on Forests and Land Use

Mains level: Not Much

At COP-26 in Glasgow, countries got together to sign the Declaration on Forests and Land Use (or the Deforestation Declaration). However, India was among the few countries that did not sign the declaration.

What is this Deforestation Declaration?

  • It was signed by 142 countries, which represented over 90 percent of forests across the world.
  • The declaration commits to halt and reverse forest loss and land degradation by 2030 while delivering sustainable development and promoting an inclusive rural transformation.
  • The signatories committed $19 billion in private and public funds to this end.

Why did India abstain from joining?

  • India had concerns about the linkage the declaration makes between deforestation, infrastructure development and trade.
  • Any commitment to the environment and climate change should not involve any reference to trade, cited India.
  • Analysts in India have linked the decision to a proposed amendment to the Forest Conservation Act 1980 that would ease the clearances presently required for acquiring forest land for new infrastructure projects.

India abstained from many things

  • A look at India’s positions on some other recent critical pledges and decisions related to climate change reveals a clear pattern of objections or absence.
  • At CoP26, India was not part of the dialogue on Forests, Agriculture and Commodity Trade (FACT).
  • FACT, which is supported by 28 countries seeks to encourage “sustainable development and trade of agricultural commodities while protecting and managing sustainably forests and other critical ecosystems”.
  • India also voted against a recent draft resolution to allow for discussions related to climate change and its impact on international peace and security to be taken up at the UNSC.

Why should India join this declaration?

  • Broadly speaking, all of India’s objections are based on procedural issues at multilateral fora.
  • Although justifiable on paper, these objections seem blind to the diverse ways in which climate change is linked to global trade, deforestation, agriculture, and international peace, among other issues.
  • For context, consider India’s palm oil trade. India is the largest importer of crude palm oil in the world.
  • Palm oil cultivation, covering roughly 16 million acres of land in Indonesia and Malaysia, has been the biggest driver of deforestation in the two countries.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Telecom and Postal Sector – Spectrum Allocation, Call Drops, Predatory Pricing, etc

Why 5G roll-outs are disrupting flights to the US?

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Read the attached story

Mains level: Hurdles in 5G Rollout

Air India said Boeing had cleared its B777 aircraft for flights to the US following concerns that the 5G roll-out there could interfere with critical aircraft functions.

What is 5G Technology?

  • 5G or fifth generation is the latest upgrade in the long-term evolution (LTE) mobile broadband networks.
  • It’s a unified platform which is much more capable than previous mobile services with more capacity, lower latency, faster data delivery rate and better utilization of spectrum.

How can 5G affect flight safety?

  • Airlines take off and land using auto-pilot systems, which use data from radar altimeters to determine the altitude of the aircraft.
  • Altimeters emit radio waves at 4.2-4.3 Gigahertz (GHz) frequency, which could interfere with a 5G band called C-Band, which lies between 3.7-4.4 GHz.
  • This interference can mess up the data. That’s the safety concern. Radio altimeters are used at airports and other low-altitude locations.
  • A different kind of altimeter, called pressure altimeter, is used for high altitude areas.
  • Not using auto-pilot would lead to more fuel consumption and higher costs for airlines.

What happens to Air India’s operations?

  • While scheduled international flights, to and from India, remain suspended due to the pandemic, Air India operates flights to the US under an air bubble agreement.
  • These routes are served by the airline’s wide-body fleet of Boeing 777 and Boeing 787 planes.
  • The roll out of 5G is expected to primarily impact the operations of Boeing 777 and 747.

Can this impact India’s 5G roll-out?

  • India’s 5G auctions are expected to include spectrum bands of 3.3GHz -3.6GHz, which means the C-Band may not be operational, at least in the near future.
  • Plus, aircraft equipment is manufactured globally, with certain standards.
  • The FAA tests will likely lead to standards for altimeters and applied internationally.
  • For aircraft makers, altimeters are key equipment. But they’re bought off-the-rack instead being designed in-house.
  • Once a standard is known, it can be implemented in all aircraft.

Also read

[Burning Issue] 5G Technology

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Coronavirus – Disease, Medical Sciences Involved & Preventive Measures

What is Antimicrobial Resistance (AMR)?

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Anti-Microbial Resistance

Mains level: Overdose of anti-biotics

The Global Research on Antimicrobial Resistance (GRAM) report published in The Lancet provides the most comprehensive estimate of the global impact of Antimicrobial Resistance (AMR) so far.

What is AMR?

  • Antimicrobial resistance (AMR or AR) is the ability of a microbe to resist the effects of medication that once could successfully treat the microbe
  • Antibiotic resistance occurs naturally, but misuse of antibiotics in humans and animals is accelerating the process.
  • A growing number of infections – such as pneumonia, tuberculosis, gonorrhoea, and salmonellosis – are becoming harder to treat as the antibiotics used to treat them become less effective.
  • It leads to higher medical costs, prolonged hospital stays, and increased mortality.

How does it occur?

  • Antibiotics are medicines used to prevent and treat bacterial infections.
  • Antibiotic resistance occurs when bacteria change in response to the use of these medicines.
  • Bacteria, not humans or animals, become antibiotic-resistant.
  • These bacteria may infect humans and animals, and the infections they cause are harder to treat than those caused by non-resistant bacteria.

What did the GRAM report find?

  • AMR is a leading cause of death globally, higher than HIV/AIDS or malaria.
  • As many as 4.95 million deaths may be associated with bacterial AMR in 2019.
  • Lower respiratory tract infections accounted for more than 1.5 million deaths associated with resistance in 2019, making it the most common infectious syndrome.

The six leading pathogens for deaths associated with resistance were:

  1. Escherichia coli (E. Coli)
  2. Staphylococcus aureus
  3. Klebsiella pneumonia
  4. Streptococcus pneumonia
  5. Acinetobacter baumannii
  6. Pseudomonas aeruginosa

What are the implications of this study?

  • Common infections such as lower respiratory tract infections, bloodstream infections, and intra-abdominal infections are now killing hundreds of thousands of people every.
  • This includes historically treatable illnesses, such as pneumonia, hospital-acquired infections, and foodborne ailments.

Way forward

  • Doctors recommend greater action to monitor and control infections, globally, nationally and within individual hospitals.
  • Access to vaccines, clean water and sanitation ought to be expanded.
  • The use of antibiotics unrelated to treating human disease, such as in food and animal production must be “optimised” and finally they recommend being “more thoughtful”.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Festivals, Dances, Theatre, Literature, Art in News

Telangana’s Tribal Fair: Sammakka-Sarakka Jatara

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Sammakka-Sarakka Jatara

Mains level: Not Much

Medaram, a tiny village in Telangana’s tribal heartland of Mulugu district, is getting ready to host the Sammakka-Sarakka jatara, billed as the country’s biggest tribal fair.

Sammakka-Sarakka Jatara

  • The mega four-day jatara, scheduled to begin on February 16 in Medaram. It takes place once in two years.
  • It is perhaps the only tribal fair devoted to pay tribute to tribal warriors who made supreme sacrifices defending the rights of aboriginal tribal people.
  • It symbolises the traditions and heritage of the Koya tribal people.
  • The sacred site in Medaram and its surrounding Jampanna vagu, named after tribal martyr Jampanna, son of Sammakka, comes alive with lakhs of devotees during the four-day jatara.

Why do tribals come to Medaram?

  • This festival commemorates a tribal revolt led by Sammakka and Saralamma, a mother-daughter duo, against levy of taxes on tribal people during drought conditions by the then Kakatiya rulers in the 12th century.
  • Tribals (and others) flock to Medaram during the jatara not just from Telangana and Andhra Pradesh but also from as far as Madhya Pradesh, Jharkhand, Chhattisgarh and Maharashtra.
  • Sammakka and Saralamma are revered by devotees as tribal goddesses, and devotees make offerings to propitiate them to bestow health and wealth.
  • All the rituals at the jatara site are held in tune with tribal traditions under the aegis of tribal priests.

Features of the celebrations

  • One of the striking features of the tribal fair is the offering of jaggery to the tribal goddess at the altars (bamboo poles).
  • It encompasses common features of tribal fairs – die-hard devotees going into a trance, the sacrifice of fowls and goats, besides pulsating traditional drum beats accompanying folk songs.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Historical and Archaeological Findings in News

In news: Ancient Tamil Civilization

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Tamiraparani Civilization

Mains level: Ancient Indian Civilizations

A reconnaissance survey in the sea off the coast of Korkai in Thoothukudi district where Tamiraparani River joins the sea, which finds mention in Sangam literature, will be undertaken by the Tamil Nadu Archaeology Department.

About Tamiraparani River

  • The Thamirabarani or Tamraparni or Porunai is a perennial river that originates from the Agastyarkoodam peak of the Pothigai hills of the Western Ghats.
  • It flows through the Tirunelveli and Thoothukudi districts of the Tamil Nadu state of southern India into the Gulf of Mannar.
  • It was called the Tamraparni River in the pre-classical period, a name it lent to the island of Sri Lanka.
  • The old Tamil name of the river is Porunai.

Its history

  • Its many name derivations of Tan Porunai include Tampraparani, Tamirabarni, Tamiravaruni.
  • Tan Porunai nathi finds mention by classical Tamil poets in ancient Sangam Tamil literature Purananuru.
  • Recognised as a holy river in Sanskrit literature Puranas, Mahabharata and Ramayana, the river was famed in the Early Pandyan Kingdom for its pearl and conch fisheries and trade.
  • The movement of people, including the faithful, trade merchants and toddy tapers from Tamraparni river to northwestern Sri Lanka led to the shared appellation of the name for the closely connected region.
  • One important historical document on the river is the treatise Tamraparni Mahatmyam.
  • It has many ancient temples along its banks. A hamlet known as Appankoil is located on the northern side of the river.

Back2Basics: Keeladi Civilization

  • The Keeladi tale began to unravel in March 2015 when first round of excavation was undertaken by the Archaeological Survey of India (ASI).
  • It unearthed antiquities providing crucial evidence to understanding the missing links of the Iron Age [12th century BCE to 6th century BCE] to the Early Historic Period [6th century BCE to 4th century BCE].
  • Further excavations threw up strong clues about the existence of a Tamil Civilization that had trade links with other regions in the country and abroad.
  • This civilization has been described by Tamil poets belonging to the Sangam period.
  • Results of carbon dating of a few artifacts traced their existence to 2nd century BCE (the Sangam period).

Key findings in excavations

  • These included brick structures, terracotta ring wells, fallen roofing with tiles, golden ornaments, broken parts of copper objects, iron implements, terracotta chess pieces, ear ornaments, spindle whorls, figurines.
  • It also had black and redware, rouletted ware and a few pieces of Arretine ware, besides beads made of glass, terracotta and semi-precious stones.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Climate Change Impact on India and World – International Reports, Key Observations, etc.

Nusantara City: New Capital of Indonesia

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Nusantara

Mains level: NA

Indonesia passed a bill replacing its capital Jakarta with East Kalimantan, situated to the east of Borneo island. The new capital city of the country will be called Nusantara.

About Nusantara

  • The New State Capital Law Bill has been drafted by a special committee set up by Widodo’s government and makes Nusantara, also called IKN, the capital of the Republic of Indonesia.
  • The transfer of the status of Jakarta as Indonesia’s capital to Nusantara, where 256,142 hectares of land has been set aside for the project, will take place in the “first semester” of 2024.
  • East Kalimantan, where the new capital will be, as per the bill is said to have a world-city vision.
  • It will be designed and managed with the objective of becoming a sustainable city in the world.

Why is Indonesia changing its capital city?

  • The new location is very strategic – it’s in the centre of Indonesia and close to urban areas.
  • The burden Jakarta is holding right now is too heavy as the centre of governance, business, finance, trade and services.
  • Jakarta is also infamous for being the worlds’ first sinking capital city due to rising sea levels.
  • The city’s pollution levels are so bad that it has been ranking as one of the most polluted cities in the world for years.
  • Another important reason to shift the capital from Java island to Borneo island has been the growing inequality – financial and otherwise.

Where is East Kalimantan?

  • East Kalimantan is 2,300 kilometres from Jakarta on the eastern side of Borneo island, shared by Indonesia, Malaysia and Brunei.
  • The new capital will be located in the North Penajam Paser and Kutai Kartanegara regions.
  • East Kalimantan is an area with immense water resources and habitable terrain.
  • East Kalimantan is rich in flora and fauna.

Why Nusantara?

  • Nusantara is an old Javanese term that means ‘archipelago’.
  • Nusantara has historical, sociological, and philosophical aspects attached to the name.
  • The name would represent Indonesia as a whole and would show the potential of the nation.

What are the other countries that have changed capitals?

  • Indonesia is not the first country to change its capital city.
  • There has been a long list of countries that have changed their capitals for various reasons. Brazil changed its capital city from Rio De Janerio to Brasilia, a more centrally-located city, in 1960.
  • In 1991, Nigeria hanged the country’s capital from Lagos to Abuja.
  • Kazakhstan moved its capital city from Almaty, which is still its commercial centre, to Nur-Sultan in 1997.
  • Myanmar changed its capital from Rangoon to Naypyidaw in 2005.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Festivals, Dances, Theatre, Literature, Art in News

AP govt bans Chintamani Padya Natakam: A noted Telugu folk play

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Chintamani Padya Natakam

Mains level: Not Much

The Andhra Pradesh government has brought the curtains down on the popular Telugu play ‘Chintamani Padya Natakam’, which has enthralled people for almost 100 years.

Chintamani Padya Natakam

  • It is a stage play penned by social reformer, writer and poet Kallakuri Narayana Rao about 100 years ago.
  • In the play, the writer explains how people neglect their families by falling prey to certain social evils.
  • It was aimed to create awareness on the Devadasi system and how the flesh trade was ruining many families at that particular period.
  • Subbisetty, Chintamani, Bilvamangaludu, Bhavani Shankaram, and Srihari are some of the characters in the play.

Its performance

  • The play is named after the main character, Chintamani, a woman born into a family involved in the flesh trade.
  • The play focuses on how she attained salvation after repentance.
  • Subbi Shetty, a character in the play, loses his wealth to Chintamani and his character is utilised in a way that engages the audience.
  • Chintamani play is popular across the state. It has been performed at thousands of places.
  • The play continues to engage the audience even today and has become a must stage play in villages during Dasara celebrations.

Why it got banned?

  • Began as a social sermon, this play has been increasingly going vulgar.
  • Subbi Shetty, who resembles a person of a transgender community, is used to portray the social group in a bad way.
  • Obscene dialogues are added to the play in the name of creativity.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Wildlife Conservation Efforts

Species in news: Swamp Deer

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Swamp Deer

Mains level: NA

The population of the vulnerable eastern swamp deer, extinct elsewhere in South Asia, has dipped (from 907 in 2018 to 868 in 2020 ) in the Kaziranga National Park and Tiger Reserve.

Swamp Deer

  • The swamp deer also called as barasingha is a deer species distributed in the Indian subcontinent.
  • Populations in northern and central India are fragmented, and two isolated populations occur in southwestern Nepal.
  • It has been locally extinct in Pakistan and Bangladesh, and its presence is uncertain in Bhutan.
  • In Assamese, barasingha is called dolhorina; dol meaning swamp.

Note: Swamp deers do occur in the Kanha National Park of Madhya Pradesh, in two localities in Assam, and in only 6 localities in Uttar Pradesh.

Conservation status

  • IUCN Red List: Endangered
  • CITES: Appendix I
  • Wildlife Protection Act of 1972: Schedule I

 

Try this PYQ:

Q. Consider the following fauna of India:

  1. Gharial
  2. Leatherback turtle
  3. Swamp deer

Which of the above is/are endangered?

(a) 1 and 2 only

(b) 3 only

(c) 1, 2 and 3

(d) None

 

Post your answers here.

 

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Air Pollution

What are Smog Towers?

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Smog Tower

Mains level: Effectiveness of smog towers

Some researchers in New Delhi have observed paradoxical phenomena near the smog towers. The air closest to the tower should be cleanest, but the device recorded the opposite in several instances.

What are Smog Towers?

  • Smog towers are structures designed to work as large-scale air purifiers. They are fitted with multiple layers of air filters and fans at the base to suck the air.
  • After the polluted air enters the smog tower, it is purified by multiple layers before being re-circulated into the atmosphere.

Structure of the Delhi smog tower

  • The structure is 24 m high, about as much as an 8-storey building — an 18-metre concrete tower, topped by a 6-metre-high canopy. At its base are 40 fans, 10 on each side.
  • Each fan can discharge 25 cubic metres per second of air, adding up to 1,000 cubic metres per second for the tower as a whole. Inside the tower in two layers are 5,000 filters.
  • The filters and fans have been imported from the United States.

How does it work?

  • The tower uses a ‘downdraft air cleaning system’ developed by the University of Minnesota.
  • Polluted air is sucked in at a height of 24 m, and filtered air is released at the bottom of the tower, at a height of about 10 m from the ground.
  • When the fans at the bottom of the tower operate, the negative pressure created sucks in air from the top.
  • The ‘macro’ layer in the filter traps particles of 10 microns and larger, while the ‘micro’ layer filters smaller particles of around 0.3 microns.
  • The downdraft method is different from the system used in China, where a tower uses an ‘updraft’ system — air is sucked in from near the ground, and is propelled upwards by heating and convection.
  • Filtered air is released at the top of the tower.

Likely impact

  • Computational fluid dynamics modelling suggests the tower could have an impact on the air quality up to 1 km from the tower.
  • The actual impact will also determine how the tower functions under different weather conditions, and how levels of PM2.5 vary with the flow of air.

Issues with smog towers

  • Many experts say that the smog towers are not a viable method to clean city’s air.
  • The government had talked about 80% pollution reduction at inlet and outlet of the tower but never mentioned about the effect of distance from the tower.
  • Instead of spending ₹40 crore on two towers, the government could have spent the funds on several other options such as replacing the small and polluting industrial boilers or chimneys etc.

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

Festivals, Dances, Theatre, Literature, Art in News

How Republic Day tableaux are designed and selected

Note4Students

From UPSC perspective, the following things are important :

Prelims level: Republic Day celebration

Mains level: Not Much

Recently, West Bengal’s tableau for the Republic Day parade was rejected without assigning any reasons or justifications.

Who manages the R-Day Parade?

  • The Defence Ministry is the responsible authority for the Republic Day parade and the celebrations.
  • Around September, it invites all the states, the UTs, Central Government departments, and a few constitutional authorities to participate in the parade through tableaux.

Managing Tableaux

  • The Defence Ministry shares the basic guidelines about what all the tableaux can or should include.
  • The tableaux of two different states/ UTs cannot be too similar, as the tableaux, together, should showcase the diversity of the country.
  • The tableaux cannot have any writing or use of logos, except for the name of the state/ UT/ department, which should be written in Hindi on the front, English on the back, and a regional language on the sides.
  • The Ministry also asks the participants to use eco-friendly material for the tableaux, and avoid the use of plastic or plastic-based products.

How are the tableaux selected?

  • The selection process is elaborate and time-consuming.
  • The Defence Ministry constitutes an expert committee of distinguished persons from fields like art, culture, painting, sculpture, music, architecture, choreography, etc.

Process of selection

(1) Submission of sketches

  • First, the submitted sketches or designs of the proposals are scrutinised by this committee, which can make suggestions for any modifications in the sketch or design.
  • The sketch should be simple, colourful, easy to comprehend and should avoid unnecessary detail.
  • It should be self-explanatory, and should not need any written elaboration.

(2) Music and Visuals

  • If there is a traditional dance involved with the tableau, it should be a folk dance, and the costumes and musical instruments should be traditional and authentic.
  • The proposal should include a video clipping of the dance.

(3) 3D Models

  • Once approved, the next stage is for the participants to come up with three-dimensional models for their proposals.
  • These are again examined by the expert committee for final selection, taking in view several criteria.
  • In making the final selection the committee looks at a combination of factors, looking at the visual appeal, impact on the masses, idea/ theme of the tableaux, degree of detail involved.

Do they have to be of a particular size?

The Defence Ministry provides each participant with one tractor and one trailer, and the tableau should fit on that.

  • The ministry prohibits use of any additional tractor or trailer, or even any other vehicle to be part of it.
  • However, the participant can replace their ministry-provided tractor or trailer with other vehicles, but the total number should not be more than two vehicles.
  • The tractor has to be camouflaged in harmony with the tableau’s theme, and the ministry stipulates a distance of around six feet between the tractor and the trailer for turning and manoeuvering.
  • The dimensions of the trailer on which the tableau will be placed is 24 feet, 8 inches long; eight feet wide; four feet two inches high; with a load-bearing capacity of 10 tonnes.
  • The tableaux should not be more than 45 feet long, 14 feet wide and 16 feet high from the ground.

(Republic Day celebrations from this year will start on January 23 instead of January 24 to include the birth anniversary of Netaji Subhas Chandra Bose.)

 

UPSC 2022 countdown has begun! Get your personal guidance plan now! (Click here)

Get an IAS/IPS ranker as your 1: 1 personal mentor for UPSC 2024

Attend Now

JOIN THE COMMUNITY

Join us across Social Media platforms.

💥Mentorship New Batch Launch
💥Mentorship New Batch Launch