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Subject: Basic Sciences

  • DRDO tests Autonomous Flying Wing Technology Demonstrator

    The Defence Research and Development Organisation (DRDO) has successfully carried out the maiden test flight of a new Unmanned Aerial Vehicle (UAV), an autonomous Flying Wing Technology Demonstrator, from the Aeronautical Test Range, Chitradurga, Karnataka.

    About the Indigenous Drone

    • The Unmanned Aerial Vehicle (UAV) is powered by a small turbofan engine.
    • It is developed under unmanned combat aerial vehicle (UCAV) programme.
    • It is designed and developed by Aeronautical Development Establishment (ADE), Bengaluru, a premier research laboratory of DRDO.
    • The engine is Russian TRDD-50MT originally designed for cruise missiles.
    • A small turbo fan engine is being developed indigenously for meeting the requirement.

    Various initiatives by DRDO

    • DRDO is in the process of developing UAVs of different classes to met the requirements of the armed forces.
    • Rustom-2, the indigenous Medium Altitude Long Endurance (MALE) UAV under development, had crossed a milestone by reaching an altitude of 25,000 feet and an endurance of 10 hours.
    • It is now being designed to reach an altitude of 30,000 feet and 18 hours endurance.
    • An Unmanned Combat Aerial Vehicle is also on the drawing board.

    Significance of the development

    • Operating in a fully autonomous mode, the aircraft exhibited a perfect flight, including take-off, way point navigation and a smooth touchdown.
    • This flight marks a major milestone in terms of proving critical technologies towards the development of future unmanned aircraft.
    • This is a significant step towards self-reliance in strategic defence technologies.

     

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  • What is Web 5.0?

    Former Twitter CEO recently announced his vision for a new decentralized web platform that is being called Web 5.0 and is being built with an aim to return “ownership of data and identity to individuals”.

    Various versions of Web

    • Web 1.0 was the first generation of the global digital communications network. It is often referred to as the “read-only” Internet made of static web-pages that only allowed for passive engagement.
    • Web 2.0 was the “read and write” Internet. Users were now able to communicate with servers and other users leading to the creation of the social web. This is the World Wide Web that we use today.
    • Web 3.0 is an evolving term that is used to refer to the next generation of Internet – a “read-write-execute” web – with decentralization as its bedrock. It leverages the blockchain technology and will be driven by Artificial Intelligence and machine learning.
    • Web 4.0 is not really a new version, but is a alternate version of what we already have. Web needed to adapt to its mobile surroundings. Web 4.0 connects all devices in the real and virtual world in real-time.

    What is Web 5.0?

    • Web 5.0 is aimed at building an extra decentralized web that puts you in control of your data and identity.
    • Simply put, Web 5.0 is Web 2.0 plus Web 3.0 that will allow users to ‘own their identity’ on the Internet and ‘control their data’.
    • Both Web 3.0 and Web 5.0 envision an Internet without threat of censorship – from governments or big tech, and without fear of significant outages.

    What are the use cases for Web 5.0?

    There can be two use cases for how Web 5.0 will change things in the future.

    1. Control of identity: A digital wallet that securely manages user identity, data, and authorizations for external apps and connections.
    2. Control over own data: Say, we can grant any music app access to settings and preferences, enabling the app to take our personalized music experience across different music apps.

    Try this question from CSP 2022:

    With reference to Web 3.0, consider the following statements:

    1. Web 3.0 technology enables people to control their own data.
    2. In Web 3.0 world, there can be blockchain based social networks.,
    3. Web 3.0 is operated by users collectively rather than a corporation.

    Which of the statements given above are correct?

    (a) 1 and 2 only

    (b) 2 and 3 only

    (c) 1 and 3 only

    (d) 1, 2 and 3

     

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  • What is TVS-2M Nuclear Fuel?

    Russia has supplied the first batches of more reliable and cost-efficient nuclear fuel over the existing one, the TVS-2M nuclear fuel, to India for the Kudankulam Nuclear Power Plant (KNPP).

    What is TVS-2M Nuclear Fuel?

    • The TVS-2M FAs contain gadolinium-oxide which is mixed with U-235 enrichments.
    • The core does not contain BARs (Burnable Absorbers Rods).

    How are they prepared?

    • Once the uranium is enriched, it is ready to be converted into nuclear fuel.
    • At a nuclear fuel fabrication facility, the UF6, in solid form, is heated to gaseous form, and then the UF6 gas is chemically processed to form uranium dioxide (UO2) powder.
    • The powder is then compressed and formed into small ceramic fuel pellets.
    • The pellets are stacked and sealed into long metal tubes that are about 1 centimetre in diameter to form fuel rods.
    • The fuel rods are then bundled together to make up a fuel assembly.
    • Depending on the reactor type, each fuel assembly has about 179 to 264 fuel rods.
    • A typical reactor core holds 121 to 193 fuel assemblies.

    Benefits offered

    • TVS-2M fuel assemblies have a number of advantages making them more reliable and cost-efficient.
    • The new fuel has increased uranium capacity – one TVS-2M assembly contains 7.6% more fuel material as compared to UTVS.
    • Besides, the special feature of the Kudankulam fuel in particular is the new generation anti-debris filter ADF-2, efficiently protecting fuel assemblies.
    • Once the new TVS-2 M fuel is used in the next refuelling, the reactor will start operations with an 18-month fuel cycle.
    • It means the reactor, which has to be stopped for every 12 months for removing the spent fuel and inserting the fresh fuel bundles and allied maintenance, will have to be stopped for every 18 months.

    Back2Basics: India-Russia Energy Cooperation

    • The Soviet Union supplied India with nuclear reactors and fuel when India was denied technologies and was hit with sanctions from the West for its refusal to sign the nuclear non-proliferation treaty (NPT).
    • In 1988, the Soviet Union agreed, allegedly without an official deal, to build two nuclear reactors at Kudankulam in Tamil Nadu.  The deal was made official in 1992.
    • In 2000, Russia and India signed another secret MoU, to cooperate on “peaceful uses” of nuclear energy, and for Russia to supply India with low-enriched uranium fuel for the Tarapur reactor in Maharashtra.
    • In 2009, the two countries entered into a major nuclear deal, with Russia agreeing to install four nuclear reactors at Kudankulam in Tamil Nadu, and one in West Bengal.
    • Two units at Kudankulam are currently operational, and the third and fourth units are being prepared for installation.
    • Russia is also aiding with the ongoing construction of the fifth and sixth units.

     

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  • What are eVTOL Aircrafts?

    The Union Civil Aviation Ministry is exploring the possibility of inviting manufacturers of Electric Vertical Take-off and Landing (eVTOL) aircraft to set up base in India.

    What is eVTOL?

    • EVTOL aircraft is one that uses electric power to hover, take off, and land vertically.
    • Most eVTOLs also use what is called as distributed electric propulsion technology which means integrating a complex propulsion system with the airframe.
    • There are multiple motors for various functions; to increase efficiency; and to also ensure safety.
    • It works on electric propulsion based on progress in motor, battery, fuel cell and electronic controller technologies.
    • It is also fuelled by the need for new vehicle technology that ensures urban air mobility (UAM).

    Features of eVTOL

    • eVTOL is emerging as a runway independent technological solution” for the globe’s transportation needs.
    • There are an estimated 250 eVTOL concepts or more being fine-tuned to bring alive the concept of UAM.
    • Some of these include the use of multi-rotors, fixed-wing and tilt-wing concepts backed by sensors, cameras and even radar.
    • The key word here is “autonomous connectivity”. Some of these are in various test phases.
    • In short, eVTOLs have been likened to “a third wave in an aerial revolution”; the first being the advent of commercial flying, and the second, the age of helicopters.

    What are the developments in powering eVTOLs?

    • The roles eVTOLs adopt depends on battery technology and the limits of onboard electric power.
    • Power is required during the key phases of flight such as take-off, landing and flight (especially in high wind conditions).
    • There is a “Diamond Nuclear Voltaic (DNV) technology” using minute amounts of carbon-14 nuclear waste encased in layered industrial diamonds to create self-charging batteries.
    • There are some industry experts who are questioning the use of only batteries and are looking at hybrid technologies such as hydrogen cells and batteries depending on the flight mission.

    What are the challenges?

    • As the technology so far is a mix of unpiloted and piloted aircraft, the areas in focus include “crash prevention systems”.
    • There are also issues such as ensuring safety in case of power plant or rotor failure.
    • Aircraft protection from cyberattacks is another area of focus.
    • A third area is in navigation and flight safety and the use of technology when operating in difficult terrain, unsafe operating environments, and also bad weather.

     

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  • What is D2M Technology?

    The Department of Telecommunications (DoT) and India’s public service broadcaster Prasar Bharati are exploring ‘direct-to-mobile’ (D2M) broadcasting.

    What is D2M Technology?

    • The technology is based on the convergence of broadband and broadcast, using which mobile phones can receive terrestrial digital TV.
    • It would be similar to how people listen to FM radio on their phones, where a receiver within the phone can tap into radio frequencies.
    • Using D2M, multimedia content can also be beamed to phones directly.

    Benefits of D2M

    • It allows broadcasting video and other forms of multimedia content directly to mobile phones, without needing an active internet connection.
    • It promises to improve consumption of broadband and utilisation of spectrum.

    Why need D2M?

    • The idea behind the technology is that it can possibly be used to directly broadcast content related to citizen-centric information.
    • It can be further used to counter fake news, issue emergency alerts and offer assistance in disaster management, among other things.
    • Apart from that, it can be used to broadcast live news, sports etc. on mobile phones.
    • More so, the content should stream without any buffering whatsoever while not consuming any internet data.

    What could be the consumer and business impact of this?

    • For consumers, a technology like this would mean that they would be able to access multimedia content from Video on Demand (VoD) or Over The Top (OTT) content platforms.
    • This will be without having to exhaust their mobile data, and more importantly, at a nominal rate.
    • The technology will also allow people from rural areas, with limited or no internet access, to watch video content.
    • For businesses, one of the key benefits of the technology is that it can enable telecom service providers to offload video traffic from their mobile network onto the broadcast network.
    • It thus helps them to decongest valuable mobile spectrum.
    • This will also improve usage of mobile spectrum and free up bandwidth which will help reduce call drops, increase data speeds etc.

    What is the government doing to facilitate D2M technology?

    • The DoT has set up a committee to study the feasibility of a spectrum band for offering broadcast services directly to users’ smartphones.
    • Band 526-582 MHz is envisaged to work in coordination with both mobile and broadcast services.
    • DoT has set up a committee to study this band.
    • At the moment, this band is used by the Ministry of Information & Broadcasting across the country for TV transmitters.

    What are the possible challenges to the technology’s rollout?

    • Bringing key stakeholders like mobile operators onboard will be the biggest challenge in launching D2M technology on a wide scale.
    • A mass roll out of the technology will entail changes in infrastructure and some regulatory changes.

     

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  • Astra MK-I Air-to-Air Missile: Features, strategic significance

    The Ministry of Defence has signed a contract with Bharat Dynamics Ltd (BDL) for the supply of the Astra Mark-1for deployment on fighter jets of the Indian Air Force and Indian Navy.

    Astra Missile

    • The Astra Mk-1 is a beyond visual range (BVR), air-to-air missile (AAM).
    • The Astra project was officially launched in the early 2000s with defined parameters and proposed future variants.
    • The missile has been designed and developed by the Defence Research and Development Organisation (DRDO).
    • It will be deployed on fighter jets like Sukhoi-30 MKI and Tejas of the IAF and the Mig-29K of the Navy.
    • BVM missiles are capable of engaging beyond the range of 20 nautical miles or 37 kilometres.

    Range and its Variants

    • While the range for Astra Mk-1 is around 110 km, the Mk-2 with a range over 150 km is under development and Mk-3 version with a longer range is being envisaged.
    • One more version of Astra, with a range smaller than Mk-1 is also under development.

    Strategic significance

    • The missile has been designed based on requirements specified by the IAF for BVR as well as close-combat engagement, reducing the dependency on foreign sources.
    • AAMs with BVR capability provides large stand-off ranges to own fighter aircraft.
    • It can neutralise adversary airborne assets without exposing adversary air defence measures.
    • Stand-off range means the missile is launched at a distance sufficient to allow the attacking side to evade defensive fire from the target.
    • Astra is technologically and economically superior to many such imported missile
    • The missile can travel at speeds more than four times that of sound and can reach a maximum altitude of 20 km, making it extremely flexible for air combat.

     

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  • [pib] Param Ananta Supercomputer

    Param Ananta, a state-of the art Supercomputer was commissioned at IIT Gandhinagar.

    Param Ananta

    • Param Ananta is capable of offering peak performance of 838 teraflops.
    • It is a joint initiative of Ministry of Electronics and Information Technology (MeitY) and Department of Science and Technology (DST).
    • This facility is established under Phase 2 of the National Supercomputing Mission (NSM).
    • The system is equipped with a mix of CPU nodes, GPU nodes, High Memory nodes, High throughput storage and high performance Infiniband.
    • The supercomputer will rank behind C-DAC’s Param Siddhi-AI, which as of November 2021 was the 102nd most powerful supercomputer in the world — with peak performance capability of 3.3 petaflops.

    What is a Supercomputer?

    • A supercomputer is a computer with a high level of performance as compared to a general-purpose computer.
    • The performance of a supercomputer is commonly measured in floating-point operations per second (FLOPS) instead of million instructions per second (MIPS).
    • Since 2017, there are supercomputers which can perform over a hundred quadrillion FLOPS (peta FLOPS).
    • Since November 2017, all of the world’s fastest 500 supercomputers run Linux-based operating systems.

    Specific features

    • Param Ananta system is based on Direct Contact Liquid Cooling technology to obtain a high power usage effectiveness and thereby reducing the operational cost.
    • Multiple applications from various scientific domains such as Weather and Climate, Bioinformatics, Computational Chemistry, Molecular Dynamics, Material Sciences, Computational Fluid Dynamics etc. have been installed on the system for the benefit of researchers.
    • This high end computing system will be a great value addition for the research community.

    Back2Basics: National Supercomputing Mission (NSM)

    • NSM is a proposed plan by GoI to create a cluster of seventy supercomputers connecting various academic and research institutions across India.
    • In April 2015 the government approved the NSM with a total outlay of Rs.4500 crore for a period of 7 years.
    • The mission was set up to provide the country with supercomputing infrastructure to meet the increasing computational demands of academia, researchers, MSMEs, and startups by creating the capability design, manufacturing, of supercomputers indigenously in India.
    • Currently there are four supercomputers from India in Top 500 list of supercomputers in the world.

    Aims and objectives

    • The target of the mission was set to establish a network of supercomputers ranging from a few Tera Flops (TF) to Hundreds of Tera Flops (TF) and three systems with greater than or equal to 3 Peta Flops (PF) in academic and research institutions of National importance across the country by 2022.
    • This network of Supercomputers envisaging a total of 15-20 PF was approved in 2015 and was later revised to a total of 45 PF (45000 TFs), a jump of 6 times more compute power within the same cost and capable of solving large and complex computational problems.

    When did India initiate its efforts to build supercomputers?

    • India’s supercomputer program was initiated in the late 1980s, when the United States ceased the export of a Cray Supercomputer due to technology embargos.
    • This resulted in India setting up C-DAC in 1988, which in 1991, unveiled the prototype of PARAM 800, benchmarked at 5 Gflops. This supercomputer was the second-fastest in the world at that time.
    • Since June 2018, the USA’s Summit is the fastest supercomputer in the world, taking away this position from China.
    • As of January 2018, Pratyush and Mihir are the fastest supercomputers in India with a maximum speed of Peta Flops.

    What are the phases of the National Supercomputing Mission?

    Phase I:

    • In the first phase of the NSM, parts of the supercomputers are imported and assembled in India.
    • A total of 6 supercomputers are to be installed in this phase.
    • The first supercomputer that was assembled indigenously is called Param Shivay. It was installed in IIT (BHU) located in Varanasi.
    • Similar systems, Param Shakti (IIT Kharagpur) and Param Brahma (IISER, Pune) were also later installed within the country.
    • The rest will be installed at IIT Kanpur, IIT Hyderabad and Jawaharlal Nehru Institute of Advanced Studies (JNIAS).

    Phase II:

    • The supercomputers that are installed so far are about 60% indigenous.
    • The 11 systems that are going to be installed in the next phase will have processors designed by the Centre for Development of Advanced Computing (C-DAC) and will have a cumulative capacity of 10 petaflops.
    • These new systems are to be constructed more cost-effectively than the previous ones.
    • One of the 11 proposed supercomputers will be installed
    • at C-DAC exclusively for small and medium enterprises so that they can train employees as well as work on supercomputers at a very low cost.

    Phase III:

    • The third phase aims to build fully indigenous supercomputers.
    • The government had also approved a project to develop a cryogenic cooling system that rapidly dispels the heat generated by a computing chip. This will be jointly built together by IIT-Bombay and C-DAC.

     

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  • Norms eased for GM Crop Research

    The Department of Biotechnology (DBT) has issued guidelines easing norms for research into genetically modified (GM) crops and circumventing challenges of using foreign genes to change crops profile.

    Guidelines for Safety Assessment of Genome Edited Plants, 2022: Key Highlights

    • It exempt researchers who use gene-editing technology to modify the genome of the plant from seeking approvals from the Genetic Engineering Appraisal Committee (GEAC).
    • The environment ministry in March 2022 exempted SDN 1 and SDN 2 genomes from Rules 7-11 of the Environment Protection Act.
    • Conventional breeding technique takes 8- 10 years for development of new crop varieties; genome-editing can do this faster.
    • The Environment Ministry too has sanctioned this exemption.

    What are the SDNs?

    The genome edited plants derived from the use of genome editing techniques employing site- directed nucleases (SDNs) such ZFNs, TALENs, CRISPR and other nucleases with similar functions are generally classified under three categories as

    1. Site-Directed Nuclease (SDN)-1, a site-directed mutagenesis without using a DNA sequence template;
    2. SDN-2, a site-directed mutagenesis using a DNA sequence template; and
    3. SDN-3, site-directed insertion of gene/large DNA sequence using a DNA sequence template.

    What are GM crops?

    • The GM plants involve transgenic technology or introducing a gene from a different species into a plant, for instance BT-cotton, where a gene from soil bacterium is used to protect a plant from pest attack.
    • The worry around this method is that these genes may spread to neighboring plants, where such effects are not intended and so their applications have been controversial.
    • Genome editing involves the use of technologies that allow genetic material to be added, removed, or altered at particular locations in the genome. Several approaches to genome editing have been developed.
    • A well-known one is called CRISPR-Cas9, which is short for clustered regularly interspaced short palindromic repeats and CRISPR-associated protein 9.

    Try this PYQ:

    Q.The Genetic Engineering Appraisal Committee is constituted under the:

    (a) Food Safety and Standards Act, 2006

    (b) Geographical Indications of Goods (Registration and Protection) Act, 1999

    (c) Environment (Protection) Act, 1986

    (d) Wildlife (Protection) Act, 1972

     

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    About Genetic Engineering Appraisal Committee (GEAC)

    • The Genetic Engineering Appraisal Committee (GEAC) is a statutory body conotified under the Environment (Protection) Act, 1986.
    • It was formed as the Genetic Engineering Approval Committee and was renamed to its current name in 2010.
    • It functions under the Ministry of Environment, Forests & Climate Change.
    • The body regulates the use, manufacture, storage, import and export of hazardous microorganisms or genetically-engineered organisms and cells in India.

     

     

  • What are Artificial Intelligence (AI) Chips?

    Market leader Nvidia recently announced its H100 GPU (graphics processing unit), which is said to be one of the world’s largest and most powerful Artificial Intelligence (AI) accelerators, packed with 80 billion transistors.

    What are AI chips?

    • AI chips are built with specific architecture and have integrated AI acceleration to support deep learning-based applications.
    • These chips, with their hardware architectures and complementary packaging, memory, storage and interconnect technologies, make it possible to infuse AI into a broad spectrum of applications.
    • There are different types of AI chips such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), central processing units (CPUs) and GPUs, designed for diverse AI applications.

    What is Deep Learning?

    • Deep learning, more commonly known as active neural network (ANN) or deep neural network (DNN), is a subset of machine learning and comes under the broader umbrella of AI.
    • It combines a series of computer commands or algorithms that stimulate activity and brain structure.
    • DNNs go through a training phase, learning new capabilities from existing data.
    • DNNs can then inference, by applying these capabilities learned during deep learning training to make predictions against previously unseen data.
    • Deep learning can make the process of collecting, analysing, and interpreting enormous amounts of data faster and easier.

    Utility of AI chips

    • The adoption of Artificial Intelligence (AI) chips has risen, with chipmakers designing different types of these chips to power AI applications such as:
    1. Natural language processing (NLP)
    2. Computer vision
    3. Robotics, and
    4. Network security across a wide variety of sectors, including automotive, IT, healthcare, and retail

    Are they different from traditional chips?

    • When traditional chips, containing processor cores and memory, perform computational tasks, they continuously move commands and data between the two hardware components.
    • These chips, however, are not ideal for AI applications as they would not be able to handle higher computational necessities of AI workloads which have huge volumes of data.
    • Although, some of the higher-end traditional chips may be able to process certain AI applications.
    • In comparison, AI chips generally contain processor cores as well as several AI-optimised cores that are designed to work in harmony when performing computational tasks.
    • The AI cores are optimised for the demands of heterogeneous enterprise-class AI workloads with low-latency inferencing, due to close integration with the other processor cores.

    What are their applications?

    • Use of AI chips for NLP applications has increased due to the rise in demand for chatbots and online channels such as Messenger, Slack, and others
    • They use NLP to analyse user messages and conversational logic.
    • Then there are chipmakers who have built AI processors designed to help customers achieve business insights at scale across banking, finance, trading, insurance applications and customer interactions.

    What firms are making these chips?

    • Nvidia Corporation, Intel Corporation, IBM Corporation, Samsung Electronics Co., Ltd, Qualcomm Technologies, Inc., and Apple Inc. are some of the key players in the AI chip market.

    Major breakthroughs

    • Nvidia, which dominates the market, offers a wide portfolio of AI chips including Grace CPU, H100 and its predecessor A100 GPUs.
    • It is capable of handling some of the largest AI models with billions of parameters.
    • The company claims that twenty H100 GPUs can sustain the equivalent of the entire world’s internet traffic.
    • IBM’s new AI chip, announced last year, can support financial services workloads like fraud detection, loan processing, clearing and settlement of trades, anti-money laundering and risk analysis.

    Scale of global market

    • The Worldwide AI chip industry accounted for $8.02 billion in 2020.
    • It is expected to reach $194.9 billion by 2030, growing at a compound annual growth rate (CAGR) of 37.4% from 2021 to 2030.

    What can be expected in the future?

    • AI company Cerebras Systems set a new standard with its brain-scale AI solution, paving the way for more advanced solutions in the future.
    • Its CS-2, powered by the Wafer Scale Engine (WSE-2) is a single wafer-scale chip with 2.6 trillion transistors and 8,50,000 AI optimised cores.
    • The human brain contains on the order of 100 trillion synapses, the firm said, adding that a single CS-2 accelerator can support models of over 120 trillion parameters (synapse equivalents) in size.
    • Another AI chip design approach, neuromorphic computing, utilises an engineering method based on the activity of the biological brain.
    • An increase in the adoption of neuromorphic chips in the automotive industry is expected in the next few years.

     

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  • What is Sudden Infant Death Syndrome (SIDS)?

    A team of scientists from Australia have found that babies at risk of the mysterious Sudden Infant Death Syndrome, or SIDS, generally have low levels of an enzyme called butyrylcholinesterase (BChE) in their blood.

    What is SIDS?

    • Sudden Infant Death Syndrome refers to the sudden and unexpected death of an otherwise healthy infant under the age of one, generally while they are sleeping.
    • Most SIDS-related deaths occur in infants between the age of 1-4 months.
    • According to the NHS website, parents can reduce the risk of SIDS by not smoking while pregnant or after the baby is born and ensuring that the baby is placed on their back when they sleep.
    • Some health experts have said that it is associated with issues in the part of an infant’s brain that controls breathing and waking up.

    Prevalence of SIDS

    • SIDS, also known as ‘cot death’, has claimed the lives of thousands of children across the West.
    • US estimates that about 3,400 babies die suddenly and unexpectedly every year.
    • Meanwhile, the United Kingdom reports about 200 such deaths annually.

    What does the new study say?

    • The study assessed whether there was something inherently different in babies that succumbed to SIDS.
    • The researchers compared dried blood samples from 655 healthy babies, 26 babies who died due to SIDS and 41 babies who died of other causes.
    • The team found that around nine of ten babies who died from SIDS had lower levels of BChE enzymes than the babies in the other two groups.

    What is the BChE (Butyrylcholinesterase) enzyme responsible for?

    • These enzymes are responsible for sending out signals that make a baby wake up, turn her head, or gasp for breath.
    • It is part of the autonomic system, and controls function like blood pressure and breathing.

     

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