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Type: Prelims Only

  • Indian Ocean Power Competition

    Isthmus of Kra Land Bridge Project

    Prelims Only | International Relations | Mains Paper 2: Bilateral, Regional and Global Groupings and agreements involving India

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Isthmus of Kra

    Mains level: Read the attached story

    Isthmus of Kra

    Central Idea

    • Thailand, with its distinctive geography resembling a plume of smoke rising from the sea, is considering a bold and historic project – the creation of an Isthmus of Kra Land Bridge.
    • This project aims to revolutionize global trade routes and significantly impact Thailand’s economy.

    About the Isthmus of Kra

    Details
    Location Southern Thailand, separating the Malay Peninsula
    Width Approximately 44 km
    Geographic Features Connects Andaman Sea (west) to South China Sea (east)
    Strategic Importance Historical trade route; potential shortcut for maritime trade

     

    The Land Bridge Project: A Historical Dream

    • Centuries-Old Idea: The dream of connecting Thailand’s two coasts across the Isthmus of Kra dates back to King Narai the Great of the Ayutthaya Kingdom in 1677.
    • Early Efforts: British and French colonial interests led to surveys and studies in the 19th century to create a maritime channel through the isthmus.
    • Modern Proposal: In 2021, Thailand introduced a new proposal, envisioning a land bridge instead of a canal.

    Current Vision

    • Reducing Shipping Distance: Thai PM envisions a 90-kmland bridge with road and rail networks, connecting deep-sea ports on both coasts.
    • Strait of Malacca Alternative: This project could offer a shorter, safer, and cost-effective route, saving approximately 1,200 km and 2 to 3 days of travel compared to the congested Strait of Malacca.
    • Economic Benefits: It aims to stimulate economic growth, create jobs, and reduce transport time, benefiting Thailand’s economy and its position in Southeast Asia.

    Conclusion

    • Thailand’s proposal to create an Isthmus of Kra Land Bridge reflects its ambition to redefine global trade routes, boost its economy, and strengthen its role in Southeast Asia.
    • While financial, geopolitical, and environmental challenges loom large, this project symbolizes Thailand’s determination to shape its future on the world stage.

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  • Festivals, Dances, Theatre, Literature, Art in News

    Gwalior, Kozhikode join UNESCO Creative Cities Network

    Prelims Only | History | Mains Paper 1: Arts & Culture

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: UNESCO Creative Cities Network

    Mains level: NA

    creative cities

    Central Idea

    • Gwalior and Kozhikode from India are among the 55 new cities which have joined the UNESCO Creative Cities Network.
    • Earlier, Srinagar was designated the creative city in the field of Crafts and Folk Arts.

    Inclusion in the UNESCO Creative Cities Network

    [A] Gwalior’s Musical Heritage

    • Category: Gwalior, located in Madhya Pradesh, earned its spot in the ‘Music’ category, showcasing its rich musical heritage.
    • Cultural Significance: Gwalior, home to the Gwalior Gharana and synonymous with musicians like Baiju Bawra and Tansen was acknowledged for being a popular destination for learning Indian classical music from musicians in the Guru-Shishya Parampara.

    [B] Kozhikode’s Literary Excellence

    • Category: Kozhikode, situated in Kerala, made its mark in the ‘Literature’ category, highlighting its literary achievements.
    • Literary Legacy: Kozhikode carried the distinction of of being home to over 500 libraries.

    About UNESCO Creative Cities Network

    Purpose To promote cooperation among cities for cultural and creative industries development
    Initiation Established by UNESCO in 2004
    Seven Categories Design, Film, Gastronomy, Literature, Media Arts, Music, and Crafts & Folk Art
    Member Cities Over 250 cities from around the world
    Objectives Foster innovation, cultural diversity, and sustainable urban development
    Activities Collaborative projects, cultural events, and initiatives
    Selection Process Cities apply and are designated by UNESCO based on criteria related to creativity
    Network Coordination UNESCO provides coordination and support
    Impact Enhances cities’ cultural identity, economy, and international visibility
    Other Indian Cities in UCCN
    • Srinagar- Crafts and Folk Arts (2022)
    • Jaipur- Crafts and Folk Arts (2015)
    • Varanasi- Creative city of Music (2015)
    • Chennai- Creative city of Music (2017)
    • Mumbai- Film (2019)
    • Hyderabad- Gastronomy/Food (2019)

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  • Innovations in Biotechnology and Medical Sciences

    NexCAR19: India’s own CAR-T Cell Therapy

    Prelims Only | Science Tech | Mains Paper 3: Achievements Of Indians In S&T

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: CAR-T Cell Therapy

    Mains level: Read the attached story

    car-t cart cell therapy

    Central Idea

    • India has achieved a significant milestone in the field of cancer treatment with the approval of NexCAR19, its first indigenous CAR-T Cell Therapy, by the Central Drugs Standard Control Organisation (CDSCO).
    • Developed by ImmunoACT, an incubated company of IIT Bombay, NexCAR19 is set to transform cancer treatment in India and make it more affordable.

    What is CAR-T Cell Therapy?

    • Revolutionary Approach: CAR-T cell therapy involves modifying T-cells, a type of white blood cell, into potent cancer-fighting cells.
    • Targeting Cancer: These genetically enhanced cells are reintroduced into the patient’s body, where they identify and eliminate cancer cells, particularly effective against blood cancers like leukemia and lymphomas.
    • Game-Changer: Unlike chemotherapy or immunotherapy, CAR-T therapy offers the potential for a cure and lifelong benefits, making it a transformative treatment option.

    NexCAR19: India’s Indigenously Developed CAR-T Therapy

    • NexCAR19 is designed to target cancer cells carrying the CD19 protein, a marker on cancer cells, enhancing precision in treatment.
    • India joins a select group of nations with its own CAR-T and gene therapy platform, reducing dependence on imports.
    • Initially approved for patients aged 15 and above with B-cell lymphomas who did not respond to standard treatments, leading to relapse or recurrence.

    Effectiveness and Unique Features

    • Approximately 70% of patients respond to NexCAR19 treatment, with some achieving complete remission.
    • Lab and animal studies indicate lower drug-related toxicities, including reduced neurotoxicity and Cytokine Release Syndrome (CRS).
    • Trials for paediatric patients are underway at Tata Memorial Hospital, ensuring broader applicability.

    Availability and Affordability

    • ImmunoACT is in the process of securing licenses and partnering with hospitals, including Tata Memorial, Nanavati, Fortis, and Jaslok, across multiple cities.
    • CAR-T therapy is expected to be available in a matter of weeks to a few months, pending final government approvals.
    • Initially priced at Rs 30-40 lakh, ImmunoACT aims to eventually reduce the cost to Rs 10-20 lakh, making the therapy more accessible.
    • Approval by regulatory agencies like CDSCO should lead to insurance coverage, but the extent may vary, and discussions with insurers and the government are ongoing.

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  • Innovations in Biotechnology and Medical Sciences

    Haemoglobin isn’t used only in Blood: Scientists

    Prelims Only | Science Tech | Mains Paper 3: Awareness in various sc and tech fields

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Haemoglobin , RBCs

    Mains level: NA

    Haemoglobin

    Central Idea

    • A groundbreaking study published in Nature has unveiled an unexpected revelation: haemoglobin is not exclusive to RBCs.
    • Scientists from China have discovered that chondrocytes, the cells responsible for cartilage production, also produce haemoglobin, which appears vital for their survival.
    • For decades, textbooks have taught that haemoglobin resides solely in red blood cells (RBCs), responsible for making blood red and transporting oxygen.
    Cartilage: A tough, flexible connective tissue found throughout the human body, providing structural support and reducing friction between bones.

    About Haemoglobin

    Fact Description
    Definition A protein found in red blood cells that transports oxygen from the lungs to tissues and organs.
    Molecular Structure Composed of four subunits: two alpha-globin chains and two beta-globin chains.
    Iron-Binding Each subunit contains an iron atom that binds to oxygen, forming oxy-hemoglobin.
    Oxygen Transport Carries oxygen from the lungs to tissues and releases oxygen for cellular respiration.
    Color Gives red blood cells their red color when oxygenated and appears bluish when deoxygenated.
    Carbon Dioxide Transport Aids in transporting carbon dioxide and hydrogen ions from tissues back to the lungs for exhalation.
    Hemoglobin Variants Different types of hemoglobin, with HbA being the most common. Variants can result from genetic mutations.
    Hemoglobin Levels Vary by individual and are measured in grams per deciliter (g/dL). Normal levels range from 12 to 18 g/dL.
    Hemoglobin Disorders Genetic disorders like sickle cell disease and thalassemia are characterized by abnormal hemoglobin production.
    Iron Metabolism Adequate iron levels are essential for hemoglobin synthesis. Iron is a key component of heme in hemoglobin.
    Fetal Hemoglobin Fetal hemoglobin (HbF) has a higher oxygen affinity and aids in oxygen transfer from mother to fetus.
    Hemoglobin Tests Used for diagnosing anemia, assessing health, and monitoring medical conditions.
    Oxygen Saturation Measured as the percentage of hemoglobin molecules bound to oxygen, often using a pulse oximeter.

    New Breakthrough: Haemoglobin Bodies (Hedy)

    • Pathologists in China researching bone development, stumbled upon spherical structures resembling RBCs within chondrocytes.
    • These structures, termed “haemoglobin bodies” or Hedy, contained haemoglobin and formed large, membraneless blobs, akin to phase separation in oil and water.

    Functionality of Hedy

    • Essential for Survival: Experiments on genetically modified mice revealed that chondrocytes without haemoglobin experienced cell death, emphasizing Hedy’s vital role.
    • Oxygen Transport: Similar to RBCs, haemoglobin in chondrocytes likely serves as an oxygen store and supplier, preventing hypoxic stress (low-oxygen conditions) in cartilage cells.

    Haemoglobin’s Broader Implications

    • New Research Avenues: The discovery bridges gaps between haematology and skeletal biology, paving the way for further exploration into the relationship between haemoglobin and stem cell fate in growth plates.
    • Potential for Joint Disease Insights: Functional haemoglobin in cartilage raises possibilities of its involvement in joint diseases and bone deformities, offering fresh insights into disease mechanisms.

    Try this PYQ:

    Excessive release of the pollutant carbon monoxide (CO) into the air may produce a condition in which oxygen supply in the human body decrease. What causes this condition?

    (a) When inhaled into the human body, CO is converted into CO2

    (b) The inhaled CO has much higher affinity for haemoglobin as compared to oxygen

    (c) The inhaled CO destroys the chemical structure of hemoglobin

    (d) The inhaled CO adversely affects the respiratory center in the brain

     

    Post your answers here.

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  • Foreign Policy Watch: India-Bangladesh

    Akhaura-Agartala Rail Link

    Prelims Only | International Relations | Mains Paper 2: India & Its Neighborhood – Relations

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Akhaura-Agartala Rail Link

    Mains level: Not Much

    Akhaura-Agartala Rail Link

    Central Idea

    • The Akhaura-Agartala rail connection has been launched. After nearly seven and a half decades, Bangladesh and northeastern India are set to re-establish rail connectivity through Tripura.

    Akhaura-Agartala Rail Link

    • This rail link stretches over 12.24 km, with a 6.78 km dual gauge rail line in Bangladesh and 5.46 km in Tripura.
    • Akhaura junction, located in Bangladesh’s Brahmanbaria district, has historical ties with India’s northeastern region, dating back to the colonial era.
    • The connection was originally constructed in the late 19th century to cater to Assam’s tea industry’s demand for access to the Chittagong port.
    • The project gained momentum in 2010 when then-PM Manmohan Singh signed an agreement to rebuild the rail link during PM Sheikh Hasina’s visit to Delhi.

    Akhaura-Agartala Rail Link

    Significance of the project

    • Multilevel connectivity: Akhaura is currently well-connected by rail, river, and road to several industrial areas in Bangladesh, including Dhaka, Chittagong, and Sylhet.
    • NE connectivity: The rail link to Agartala is expected to enhance connections between India’s northeast and Chittagong, facilitating the transportation of goods.
    • Shortened Routes: The Akhaura link has the potential to significantly reduce travel time and distance for trains travelling to Tripura, southern Assam, Mizoram, Kolkata, and the rest of India, compared to the longer route via Guwahati and Jalpaiguri stations.
    • Unique Event: This event is unique as it marks the first direct rail connection between Akhaura and Agartala, with the first trains anticipated to run between Nishchintapur and Gangasagar stations.

    Commercial benefits

    • Trade Expansion: The rail link is expected to boost India-Bangladesh trade in various sectors, including agriculture products, tea, sugar, construction items, iron and steel, and consumer goods, while also fostering people-to-people relationships.
    • Expanded Connectivity: The Akhaura-Agartala rail route is seen as a significant initiative to enhance India’s connectivity with Southeast Asian regions, holding potential for regional economic growth.

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  • Oil and Gas Sector – HELP, Open Acreage Policy, etc.

    India’s Strategic Move: Reviving the Mozambique LNG Project

    Prelims Only | Economics | Mains Paper 3: Infrastructure: Energy, Ports, Roads, Airports, Railways Etc.

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Mozambique LNG Project

    Mains level: NA

    Mozambique LNG Project

    Central Idea

    • Union Minister for Petroleum and Natural Gas recently undertook a significant diplomatic mission to review the $20 billion liquefied natural gas (LNG) project in Mozambique.
    • This project, situated in the northern Cabo Delgado province, holds immense strategic importance for India’s quest for energy self-sufficiency.

    Mozambique LNG Project

    • Discovery in 2010: The project originated in 2010 with the discovery of substantial natural gas reserves off the northern Mozambique coast.
    • Resource Abundance: The Area 1 block holds around 75 trillion cubic feet (Tcf) of recoverable gas, promising a resource life of about 120 years with an initial production rate of 12.88 million tonnes of LNG per year.
    • Indian Involvement: Three Indian public sector undertakings (PSUs) hold a 30% stake in the Mozambique LNG project.
    • Strategic Location: Mozambique’s geographical proximity to India’s west coast, with numerous LNG terminals, enhances its significance as a preferred source for LNG supply.
    • Meeting Indian Demand: India aims to increase the share of natural gas in its energy mix, with LNG imports playing a crucial role. India currently imports approximately 50% of its natural gas needs.

    Challenges and Recent Developments

    • Operational Halt: TotalEnergies suspended project operations due to security concerns in April 2021.
    • Humanitarian Assessment: A humanitarian mission was conducted by Jean-Christophe Rufin in December 2022, recommending actions to address local issues.
    • Indian Diplomatic Efforts: India has actively sought to engage project partners and restart the project since May 2023.
    • Geopolitical Significance: India’s reliance on Qatar as a major LNG supplier faces challenges, making the Mozambique LNG project strategically important.

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  • International Space Agencies – Missions and Discoveries

    Calculating Moon’s True Age

    Prelims Only | Science Tech | Mains Paper 3: Awareness in various sc and tech fields

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Moon's Age

    Mains level: NA

    moon age

    Central Idea

    • For years, the moon’s age was believed to be around 4.42 billion years, but recent research challenges this notion.
    • A study has used advanced technology called atom probe tomography (APT) to evaluate lunar sample 72255, which contained 4.2 billion-year-old zircon crystals.

    Unveiling the Moon’s True Age

    • Zircon’s Significance: Zircon is not only the oldest mineral on Earth but also holds crucial information about the formation of our planet.
    • Lead Clustering Analysis: Using nanoscale spatial resolution, the scientists analyzed the clustering of lead within the samples, a common method to estimate the age of zircon in rocks.
    • Revised Age: The study concludes that the moon likely formed approximately 4.46 billion years ago, within the first 110 million years of the solar system’s existence.
    • Comparing Earth’s Age: Earth is estimated to be between 4.5 and 4.6 billion years old, making the moon slightly younger at approximately 4.46 billion years old.

    Implications of Zircon and Lunar Formation

    • Giant Impact Hypothesis: The researchers propose the giant impact hypothesis, suggesting that a celestial body named Theia, possibly Mars-sized, collided with Earth during its formation. This collision ejected debris, which coalesced to form the moon.
    • Lunar Magma Ocean: This collision led to the formation of the Lunar Magma Ocean, influencing the moon’s interior composition.
    • Preserved Zircon: Subsequent lunar surface bombardments reworked the earliest crust, leaving some zircon crystals modified and others preserved. Identifying these preserved zircon crystals provided insights into the moon’s age.

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  • Innovations in Sciences, IT, Computers, Robotics and Nanotechnology

    IIT-B pioneers Nanostructured Hard-Carbon Florets (NCF)

    Prelims Only | Science Tech | Mains Paper 3: Achievements Of Indians In S&T

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Nanostructured Hard-Carbon Florets (NCF)

    Mains level: Not Much

    Nanostructured Hard-Carbon Florets (NCF)

    Central Idea

    • Scientists at IIT Bombay have achieved a groundbreaking development by creating a material known as Nanostructured Hard-Carbon Florets (NCF).
    • This innovative material boasts an unparalleled solar-thermal conversion efficiency, surpassing 87%.

    What is Nanostructured Hard-Carbon Florets (NCF)?

    • NCF Development: It is a material capable of absorbing and storing an exceptional amount of heat energy.
    • Stunning Efficiency: It exhibits an extraordinary solar-thermal conversion efficiency of over 87%, absorbing more than 97% of sunlight’s ultraviolet, visible, and infrared components.
    • NCF Manufacturing: The material is manufactured through chemical vapor deposition, making it easily scalable and suitable for large-scale production.

    Science behind NCF’s Efficiency

    • NCF’s success lies in its unique structure, resembling interconnected carbon cones.
    • This structure combines high photon thermalization (efficiently converting light into heat) with low phonon thermal conductivity (retaining heat without loss).

    Applications of NCF

    • Wide Range: NCF can be applied to diverse surfaces, including paper, elastomer, metal, and terracotta clay, making it adaptable for various contexts.
    • Versatility: The generated heat can be efficiently transferred to air or water, making NCF ideal for smoke-free space heating, particularly beneficial in cold regions like Leh and Ladakh.
    • Eco-Friendly and Cost-Effective: Unlike conventional coatings based on heavy metals like chromium (Cr) or nickel (Ni), NCF coatings do not harm the environment

    Beyond Solar Thermal Conversion

    • Heating Rooms and Spaces: Hollow copper tubes coated with NCF can heat air to over 72 degrees Celsius, demonstrating potential applications in space heating.
    • Efficient Water Vapor Conversion: NCFs have achieved an astonishing water vapor conversion efficiency of 186%, surpassing commercial solar stills.
    • Sustainable Energy Solution: This groundbreaking technology provides a green solution to the global energy crisis, supporting the transition to sustainable energy sources.
    • Commercialization and Recognition: The project is on the path to commercialization through the establishment of a company at IIT Bombay’s Society for Innovation and Entrepreneurship. It has received accolades and support, highlighting its potential to revolutionize the solar-thermal energy market in India and contribute to decarbonization.

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  • Festivals, Dances, Theatre, Literature, Art in News

    Kathaprasangam: An Art Form’s Century-Long Journey

    Prelims Only | History | Mains Paper 1: Arts & Culture

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Kathaprasangam

    Mains level: NA

    Kathaprasangam

    Central Idea

    • Kathaprasangam began as a medium to narrate stories of oppression, untouchability, and human resilience.
    • Today, it finds a place of relevance and renewal in the digital age, captivating audiences, both young and old.

    Kathaprasangam

    • Kathaprasangam is a stage art form of Kerala, which was popular in the mid-twentieth century.
    • Kathaprasangam owes its inception to Kumaranasan (1873-1924), a Malayalam poet who aimed to educate and inspire underprivileged sections of society.
    • He sought to propagate the principles of Sree Narayana Guru and his poems.
    • It started a century ago, touching on themes of oppression, untouchability, and human triumphs.
    • It uses a blend of prose and song, accompanied by a harmonium and tabla, to retell stories.
    • Young performers compete in this art form, earning marks that influence their promotions.
    • It is celebrated for its ability to communicate with urgency and directness, addressing societal issues.

    Relevance in Modern Context

    • Kathaprasangam, born out of the fight against casteism and superstitions, holds even more significance today as religious identities are asserted with violence, posing a threat to societal harmony.
    • While newer forms of entertainment have gained popularity, they still attract young audiences eager to learn and share stories using new media platforms.

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  • Health Sector – UHC, National Health Policy, Family Planning, Health Insurance, etc.

    Salt Consumption and Health: Striking a Delicate Balance

    Prelims Only | Governance | Mains Paper 2: Health & Education

    Note4Students

    From UPSC perspective, the following things are important:

    Prelims level: Salt and its Heath Hazards

    Mains level: Rising burden of NCDs in India

    Central Idea

    • Salt is an essential component of our diet, adding flavor to our food and serving vital bodily functions.
    • However, excessive salt intake can lead to health issues, including high blood pressure.

    Salt Intake in India

    • In India, a recent national survey revealed that men consume 8.9 grams, while women intake 7.1 grams of salt daily (Prashant Mathur et al., Scientific Reports, 2023).
    • While the World Health Organization recommends a daily salt intake of 5 grams, the global average is much higher at 10.8 grams.

    Salt and Health Implications

    • Diverse Health Effects: Extensive research in animals and human surveys consistently link high salt consumption to kidney, brain, vascular, and immune system diseases. Conditions such as kidney stones and osteoporosis are associated with excessive sodium intake.
    • Global Impact: Excessive salt intake contributes to approximately five million deaths worldwide annually, underscoring the global health impact of salt-related health issues.

    The Yanomami Example

    • The Yanomami people, living in the Amazon rainforest, follow a foraging lifestyle and consume a diet primarily composed of Cassava, plantains, fruit, fish, and occasionally tapir.
    • Interestingly, they use peppers for flavor but do not use salt.
    • Their daily salt intake is less than one gram, yet they maintain excellent health and fitness.

    Salt and Obesity Connection

    • Balancing Act: While our bodies require salt for essential functions, excessive salt consumption can lead to health problems, including obesity.
    • Metabolic Impact: High salt intake impairs metabolism and increases the size of adipocytes, the cells that store fat, contributing to obesity.
    • Dietary Preferences: There is a connection between a preference for high-fat and salty foods. Experiments with mice showed that those exposed to high-fat diets during gestation preferred salty water.

    Reducing Salt Intake and Blood Pressure

    • Population Studies: Reducing salt intake by five to eight grams daily can lead to a 4 mmHg drop in systolic blood pressure and a lower risk of cardiovascular disease, as demonstrated in population studies.
    • Clinical Trials: Antihypertensive drugs, which lower blood pressure, show similar results, with an average reduction of 5 mmHg.
    • Salt Alternatives: Replacing normal salt with a mixture of 75% sodium chloride and 25% potassium chloride reduced systolic blood pressure by 3.3 mmHg in a Chinese population study.
    • Caution for Elderly: Reducing salt intake may pose risks for elderly adults, particularly if they are taking blood pressure medication, as it could lead to hypotension and falls.

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