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GS Paper: GS3-17.Awareness in the fields of IT, Space, Computers, Robotics, Nano-technology, Bio-technology and issues relating to Intellectual Property Rights.

  • How are Semiconductors fabricated? | Explained

    Why in the news? 

    The binary revolution (0s and 1s) constantly shape the way we interact with technology and with each other daily and the beating heart of this binary revolution is the semiconductor device.

    What are semiconductors?

    Semiconductors are materials that possess properties intermediate between those of conductors and insulators. They can conduct electricity under certain conditions but not as effectively as conductors, nor do they block it entirely like insulators.

    How are semiconductors made?

    • Silicon Wafer Selection: Engineers begin by selecting a silicon wafer as the foundation for the semiconductor.
    • Purification of Silicon: Silicon, sourced from sand, undergoes meticulous purification to achieve ultra-pure levels with impurity levels as low as a few parts per billion.
    • Photolithography Process: A crucial step where the circuit pattern is carved on the wafer using photolithography. The wafer is coated with a light-sensitive material (photoresist), and a mask with small gaps in the circuit pattern shape is used to shine light onto the wafer, eroding parts of the photoresist to acquire the pattern.
    • Chemical and Physical Techniques: After photolithography, engineers use chemical and/or physical techniques to remove uncarved parts of the photoresist, leaving behind the circuit’s structure on the silicon substrate.
    • Doping of Semiconductor: Impurities are deliberately added to specific parts of the semiconductor to alter its electrical properties.
    • Deposition of Thin Layers: Thin layers of materials such as metals or insulators are deposited onto the wafer’s surface to form electrical connections or insulate components.
    • Packaging and Testing: The resulting product undergoes packaging, where individual chips are separated, encapsulated, and tested to ensure functionality and reliability.Finally, the semiconductor chips are integrated into electronic devices.

    Need Expertise

      • Need high precision and diverse scientific principle-Each step in semiconductor fabrication demands ultra-high precision and harnesses a blend of diverse scientific principles. For example, to make the most advanced transistors, the photolithography process requires a light source emitting electromagnetic radiation at a wavelength of 13.5 nm.
      • Specializing in specific domains-The semiconductor manufacturing process is characterised by specialisation, leading to an oligopoly controlled by companies specializing in specific domains. For example ASML, a spin-off of Philips, is in fact the sole provider of photolithography machines for cutting-edge semiconductor technology worldwide

    Status of India in fabrication – 

      • Bengaluru serves as a hub for chip design, showcasing India’s leading role in this field.Despite its prowess in chip design, India lacks ownership of the intellectual property rights (IPR) necessary to execute these designs.
      • Most IPR for chip designs is retained by parent companies or Arm, limiting India’s autonomy to being a mere user of their products.The situation resembles the McDonald’s business model, where India hosts outlets but lacks ownership of the recipe and supply chain, controlled by a parent company elsewhere.

    Significance of semiconductors:

    • Ubiquitous Influence: Semiconductors power various technologies beyond smartphones and computers, including smart air-conditioners, space telescopes, and more.
    • Critical Solutions for Crises: Semiconductors are crucial for addressing 21st-century challenges like artificial intelligence, electric vehicles, space exploration, and personalized healthcare, highlighting their significance for human survival and progress.
    • Innovation and Job Creation: Semiconductor technology facilities foster innovation, create high-paying jobs, and nurture deep-tech start-ups, contributing to advancements in various fields like materials science, computer engineering, and chip design.
    • Geopolitical Significance: Semiconductors have become a focal point of geopolitical interest, with nations competing to establish fabrication facilities and imposing sanctions on others to control access to advanced technology, driving efforts to bolster domestic semiconductor production capabilities.

    Challenges related to semiconductor manufacturing in India:

    • Intellectual Property Rights (IPR): India faces limitations due to a lack of ownership of IPR necessary for chip fabrication.
    • Technology Transfer: Despite advancements in chip design, India struggles with technology transfer issues.
    • Infrastructure: Developing semiconductor manufacturing facilities requires significant investment in infrastructure
    • Skilled Workforce: The semiconductor industry demands highly skilled professionals proficient in various aspects of chip design, fabrication, and testing.
    • Regulatory Environment: India’s regulatory environment, including policies related to intellectual property, taxation, and investment, may not be conducive to attracting semiconductor manufacturing investments.

    Measures to address challenges related to semiconductor manufacturing in India:

    • Education and training programs:  Offer specialized courses and certifications to equip individuals with the necessary skills for the industry.
    • Policy reforms: Implement policy reforms to create a conducive regulatory environment for semiconductor manufacturing sector.
    • Diversification of suppliers: Encourage diversification of semiconductor supply chains by supporting domestic suppliers and fostering partnerships with global manufacturers
    • Government grants and incentives: Provide financial support and incentives for semiconductor R&D projects
    • Strategic partnerships: Forge strategic partnerships with leading semiconductor-producing countries and organizations to leverage their expertise, share best practices, and facilitate technology transfer and knowledge exchange.

    Conclusion: Addressing challenges in semiconductor manufacturing in India requires collaborative efforts, investment in infrastructure and education, regulatory reforms, and strategic partnerships. These measures are vital for India to strengthen its position in the global semiconductor industry.

    Mains PYQ-

    Q- Account for the present location of iron and steel industries away from the source of raw material, by giving examples. ( 2020 ) 

  • Krutrim AI: India’s indigenous AI

    Why in the news?

    Krutrim AI is Ola’s homegrown AI assistant, designed to cater to the diverse needs and nuances of Indian consumers, bridging the gap between conventional AI and specific cultural contexts.

    Krutrim’s Capabilities

    • Multilingual Support: Krutrim boasts the ability to converse in English, Hindi, Tamil, Telugu, Malayalam, Marathi, Kannada, Bengali, Gujarati, and Hinglish, catering to the linguistic diversity of India.
    • Multi-Functionality: Users can leverage Krutrim for a range of tasks, including writing emails, seeking information, learning new skills, planning travel, discovering recipes, and more.

    Technology behind Krutrim AI

    • Sophisticated AI Model: Krutrim operates on a sophisticated AI model trained on vast datasets encompassing Indian languages, social contexts, and cultural references.
    • Natural Language Processing (NLP): Utilizes NLP to comprehend human language nuances, including colloquialisms and cultural contexts, enhancing user interactions.
    • Machine Learning (ML): ML algorithms enable Krutrim to learn from datasets, continuously improving responses and understanding user intent.
    • Deep Learning: Leverages Deep Learning to recognize patterns and analyze complex data, crucial for contextual responses and performance enhancement.

    Applications and Benefits for Users

    • Enhanced User Experience: Krutrim AI enhances user experiences across various sectors by offering culturally sensitive interactions, personalized learning in education, and automating administrative tasks.
    • Support for Content Creators: Content creators can leverage Krutrim for ideation and localization, making content more relatable and engaging.
    • Automating Repetitive Tasks: Krutrim’s capabilities extend to automating repetitive administrative tasks across industries, boosting efficiency and productivity.

    PYQ:

    2018: When the alarm of your smartphone rings in the morning, you wake up and tap it to stop the alarm which causes your geyser to be switched on automatically. The smart minor in your bathroom shows the day’s weather and also indicates the level of water in your overhead tank. After you take some groceries from your refrigerator for making breakfast, it recognises the shortage of stock in it and places an order for the supply of fresh grocery items. When you step out of your house and lock the door, all lights, fans, geysers and AC machines get switched off automatically. On your way to office, your car warns you about traffic congestion ahead and suggests an alternative route, and if you are late for a meeting, it sends a- message to your office accordingly.

    In the context of emerging communication technologies, which one of the following term” best applies to the above scenario?

    1. Border Gateway Protocol
    2. Internet of Things
    3. Internet Protocol
    4. Virtual Private Network

     

    Practice MCQ:

    Consider the following statements about the ‘Krutrim AI’:

    1. It is a homegrown AI assistant developed by the Centre for Development of Advanced Computing (C-DACs).
    2. It can converse in regional languages of India.

    Which of the given statements are correct?

    1. Only 1
    2. Only 2
    3. Both 1 and 2
    4. Neither 1 nor 2

  • On the resurgence of Mumps in Kerala

    Why in the news? 

    Mumps, an acute viral infection that historically affects children, has been spreading like wildfire in Kerala, for the past few months.

    Context:

    • Despite being a vaccine-preventable disease, mumps has never been a part of the Universal Immunisation Programme (UIP) because of the disease’s no-mortality profile and the perception that it has low public health significance.
    • According to the World Health Organization (WHO), vaccination strategies targeting mumps control should be closely integrated with existing measles elimination and rubella control.

    About: Mumps is an airborne viral disease primarily affecting children and adolescents. It manifests with symptoms like fever, headache, and painful swelling of the salivary glands, particularly the parotid glands on both sides of the face.

    Is it a cause for concern? 

    • Self-Limiting Disease: Mumps is described as a self-limiting disease, meaning it typically resolves on its own with rest and symptomatic management within about two weeks.
    • Underreporting: Due to approximately half of infected children developing classical symptoms and around 30% remaining asymptomatic, many cases of mumps go unreported. This suggests that reported cases are likely a significant underestimation of the actual prevalence in the community.
    • Public Health Perspective: Historically, measles has been prioritized in public health efforts due to its potential for severe morbidity and mortality, overshadowing the attention given to mumps.
    • Emerging Concerns: Despite being less prioritized, recent reports indicate a surge in mumps cases, including complications such as encephalitis, epilepsy, aseptic meningitis, and acute pancreatitis, particularly at Kozhikode Medical College hospital.
    • Impact on Reproductive Health: Mumps can affect the gonads (reproductive glands) in both males and females. In males, it poses the rare but significant risk of infertility or reduced sperm count in the long term.

    Why is the mumps vaccine not part of the national immunization schedule?

    • Lack of Mortality: Mumps typically does not result in fatalities, further contributing to the belief that it may not warrant inclusion in routine vaccination schedules.
    • Underestimation of Public Health Significance: Despite arguments from organizations like the Indian Academy of Pediatrics (IAP) that mumps’ public health significance is underestimated, there has been insufficient evidence or data to prompt its inclusion in national immunization programs.
    • Poor Documentation and Lack of Studies: Limited documentation of clinical cases, complications, and follow-up data, as well as a scarcity of published studies on mumps, have hindered efforts to fully understand its impact and advocate for its vaccine inclusion.
    • Absence of Nationally Representative Data: The lack of nationally representative data on the incidence of mumps in India makes it challenging to assess its burden accurately and advocate for vaccine inclusion based on epidemiological evidence.
    • Limited Information on Long-Term Morbidity: While mumps is known to have some impact on reproductive organs, there is very little information available on its actual long-term morbidity profile, further complicating decisions regarding vaccine inclusion.

    How can the current outbreaks be controlled?

    • Public Awareness Campaigns: Launch comprehensive public awareness campaigns to educate the community about mumps, its symptoms, transmission, and the importance of isolation. Emphasize the significance of vaccination and maintaining good hygiene practices.
    • Improve Immunization Coverage: Strengthen efforts to improve general immunization coverage, especially targeting unimmunized children and adolescents. Ensure accessibility to vaccination services in all communities.
    • Strict Isolation Measures: Enforce strict isolation measures for mumps patients for the full three-week duration to limit disease transmission. Provide clear guidelines to healthcare facilities and schools on managing mumps cases and preventing spread.
    • School Closure: Consider temporary closure of schools during outbreaks to prevent further transmission, especially if a significant number of cases are reported among students. Use the summer break as an opportunity to break the chain of transmission.
    • Enhanced Surveillance and Reporting: Implement robust surveillance systems to promptly detect and report mumps cases. Ensure healthcare providers are vigilant in diagnosing and reporting suspected cases to public health authorities for timely intervention.
    • Contact Tracing and Monitoring: Conduct thorough contact tracing of individuals who have been in close contact with confirmed mumps cases. Monitor them for symptoms and enforce isolation measures if necessary to prevent secondary transmission.
    • Healthcare Provider Training: Provide training to healthcare providers on mumps diagnosis, management, and reporting protocols. Ensure they are equipped to identify and manage cases effectively.
    • Community Engagement: Engage with community leaders, schools, and parents to encourage cooperation with control measures. Encourage individuals to seek medical care promptly if they develop symptoms suggestive of mumps.

    Way Forward:

    • Assessment of Vaccine Effectiveness: Despite the lack of studies on the effectiveness of the mumps vaccine in India, global data suggests that two doses of the MMR vaccine can provide protection ranging from 70% to 95%, provided that coverage is high.
    • Integration with Measles and Rubella Control: The World Health Organization (WHO) recommends integrating mumps vaccination strategies with existing efforts for measles elimination and rubella control. This ensures a comprehensive approach to vaccine-preventable diseases.
    • Consideration of Regional Factors: Evaluate regional factors influencing vaccine effectiveness, disease burden, and immunization coverage. Tailor vaccination strategies accordingly to address the specific needs and challenges faced in Kerala.
    • Consultation with Experts and Stakeholders: Engage with public health experts, immunization specialists, and stakeholders to review the evidence, assess the impact of different vaccination strategies, and determine the most effective approach moving forward.
    • Monitoring and Surveillance: Strengthen monitoring and surveillance systems to track mumps cases, vaccine coverage, and vaccine effectiveness. This data will be crucial for evaluating the impact of vaccination strategies and making informed decisions.
    • Policy Decision: Based on the evidence and expert recommendations, make a policy decision regarding the inclusion of MMR vaccine in the Universal Immunization Programme. Consider factors such as vaccine availability, cost-effectiveness, and logistics.

    Conclusion: Addressing the resurgence of mumps in Kerala necessitates a comprehensive approach, including vaccination integration, public awareness, strict isolation measures, and policy review guided by expert consultation and regional considerations.

  • IAU approves ‘Statio Shiv Shakti’ as name for Chandrayaan-3 Landing Site

    What is the news?

    The International Astronomical Union (IAU) working group for Planetary System Nomenclature recently sanctioned the name ‘Statio Shiv Shakti’ for the landing site of Chandrayaan-3’s Vikram lander, marking a significant milestone in planetary nomenclature.

    About International Astronomical Union (IAU)

    • The IAU was founded on July 28, 1919, during the Constitutive Assembly held in Brussels, Belgium.
    • Its creation was prompted by the need for international collaboration in astronomy, especially after the devastation caused by World War I.
    • It aims for promoting and safeguarding astronomy in all its aspects through international cooperation.
    • IAU is now headquartered in Paris, France.

    Major Activities and Initiatives

    • General Assembly: The IAU holds a general assembly every three years in varying parts of the world at which professional astronomers meet to discuss research, new cooperative ventures, and similar matters of professional interest.
    • Astronomical Nomenclature: IAU standardizes the nomenclature of celestial bodies, features, and phenomena. It maintains several working groups dedicated to naming conventions for stars, planets, asteroids, and other objects.
    • Research and Collaboration: It promotes international cooperation in astronomical research and supports initiatives such as observational campaigns, data sharing, and joint projects.
    • Education and Outreach: It is actively involved in promoting astronomy education and public outreach efforts worldwide. It supports educational programs, workshops, and resources for students, teachers, and the general public.

    Membership

    1. IAU membership spans 92 countries. Out of those countries, 85 are National Members.
    2. India is represented by the Astronomical Society of India (ASI).
    3. Its members are professional astronomers from all over the world, at the D. level and beyond, who are active in professional research, education, and outreach in astronomy.

    IAU Nomenclature  Criteria

     

    • Rule 4: It emphasizes the international nature of solar system nomenclature and encourages equitable representation of names from diverse ethnic groups, countries, and genders.
    • Rule 9: The IAU adheres to Rule 9, prohibiting names with political, military, or religious connotations, except for historical political figures prior to the 19th century.
    • Rule 11: It emphasizes that names should be unique within the context of celestial nomenclature to prevent confusion.

    About Statio Shiv Shakti’

    • Prime Minister announced the name ‘Shiv Shakti’ for the Chandrayaan-3 landing site in August, 2023, reflecting the significance of Indian mythology and cultural heritage.
    • It is located at the co-ordinates 69.373°S 32.319°E and lies between the lunar craters Manzinus C and Simpelius N.
    • The name ‘Shiv Shakti’ symbolizes the masculine-feminine duality of nature, embodying strength and resolution, with a profound connection to India’s diverse cultural landscape.

    PM previously named the Chandrayaan-2 crash site ‘Tiranga point’, while former President A.P.J. Abdul Kalam suggested ‘Jawahar Point’ for the Chandrayaan-1 impact probe landing site, reflecting a tradition of honoring national figures and symbols.

     

    PYQ:

    2021: Which one of the following is a reason why astronomical distances are measured in light-years?​

    1. Distances among stellar bodies do not change.​
    2. Gravity of stellar bodies does not change.​
    3. Light always travels in straight line.​
    4. Speed of light is always same.​

     

    Practice MCQ:

    Consider the following statements about International Astronomical Union (IAU):

    1. It aims for promoting and safeguarding astronomy in all its aspects through international cooperation.
    2. India is represented by the ISRO in the IAU.

    Which of the given statements are correct?

    1. Only 1
    2. Only 2
    3. Both 1 and 2
    4. Neither 1 nor 2

  • Clinical Trials for MTBVAC Tuberculosis Vaccine in India

    What is the news?

    • Bharat Biotech, in collaboration with Spanish biopharmaceutical company Biofabri, has initiated clinical trials for the Mycobacterium Tuberculosis Vaccine (MTBVAC) in India, marking a significant milestone in TB vaccine development.
    • The only currently available TB vaccine, the Bacillus Calmette-Guérin vaccine (BCG), was developed 100 years ago and is less effective.

    About MTBVAC

    • MTBVAC is a unique TB vaccine based on a genetically modified form of Mycobacterium tuberculosis, containing all antigens present in human-infecting strains, unlike the BCG vaccine.
    • It is developed in the laboratory of the University of Zaragoza with contributions from Dr. Brigitte Gicquel of the Pasteur Institute, Paris.
    • MTBVAC is designed to offer superior and potentially longer-lasting protection compared to the BCG vaccine, particularly for newborns and in preventing TB in adults and adolescents.

    Objectives of Clinical Trials in India

    • Safety and Immunogenicity: The ongoing trials in India aim to evaluate the safety and immunogenicity of MTBVAC, with plans for a pivotal Phase 3 trial in 2025.
    • Population Significance: Studying the vaccine’s efficacy in India, with its high TB burden, is crucial for advancing TB vaccine research and addressing the global TB epidemic.

    What is Tuberculosis?

    • Tuberculosis is an infection caused by Mycobacterium tuberculosis.
    • Robert Koch discovered Mycobacterium tuberculosis which causes TB, and his discovery opened the way towards diagnosing and curing this disease.
    • It can practically affect any organ of the body.
    • The most common ones are lungs, pleura (lining around the lungs), lymph nodes, intestines, spine, and brain.

    Transmission:

    It is an airborne infection that spreads through close contact with the infected, especially in densely populated spaces with poor ventilation.

    Symptoms:

    Common symptoms of active lung TB are cough with sputum and blood at times, chest pains, weakness, weight loss, fever and night sweats.

    Treatment Facilities in India:

    • DOTS (Directly Observed Treatment, Short-Course) regimen: It is the recommended treatment approach for TB by the WHO. Patients receive a combination of four antibiotics: isoniazid, rifampicin, pyrazinamide, and ethambutol. These drugs are usually administered daily for the first two months of treatment, followed by a continuation phase with isoniazid and rifampicin for an additional four to seven months.
    • Nikshay Poshan Yojana (2018): It was launched to support every Tuberculosis (TB) Patient by providing a Direct Benefit Transfer (DBT) of Rs 500 per month for nutritional needs.

    Issues in TB Treatment: Drug Resistance

    Drug resistance emerges when anti-TB medicines are used inappropriately, through incorrect prescription by health care providers, poor quality drugs, and patients stopping treatment prematurely.

    1. Multidrug-resistant tuberculosis (MDR-TB): Itis a form of TB caused by bacteria that do not respond to isoniazid and rifampicin, the 2 most powerful, first-line anti-TB drugs. MDR-TB is treatable and curable by using second-line drugs such as
    2. Extensively drug-resistant TB (XDR-TB): Itis a more serious form of MDR-TB caused by bacteria that do not respond to the most effective second-line anti-TB drugs, often leaving patients without any further treatment options.

     

    PYQ:

    2014: Can overuse and free availability of antibiotics without Doctor’s prescription, be contributors to the emergence of drug-resistant diseases in India? What are the available mechanisms for monitoring and control? Critically discuss the various issues involved.

     

    Practice MCQ:

    With reference to the Tuberculosis (TB), consider the following statements:

    1. TB is an infection caused by Mycobacterium tuberculosis.
    2. It only targets Lungs.
    3. Nikshay Poshan Yojana aims for TB support is essentially a Direct Benefit Transfer (DBT).

    How many of the given statements is/are correct?

    1. One
    2. Two
    3. Three
    4. None

  • [pib] Project ANAGRANINF

    What is the news?

    • The Technology Development Board (TDB) has allocated a grant of ₹75 Lakhs for the project “ANAGRANINF – Development of a Novel Class of Antibiotics against Gram-Negative Bacterial-Infections,” totalling ₹1.5 crores.

    What is Project ANAGRANINF?

    • Project ANAGRANINF is titled “Development of a Novel Class of Antibiotics Against Gram-Negative Bacterial-Infections.”
    • It is a collaborative initiative involving M/s Peptris Technologies Pvt. Ltd. and the Foundation for Neglected Disease Research (FNDR) in India, along with ABAC THERAPEUTICS SL from Spain.
    • The primary objective of the project is-
    1. To develop a novel antibiotic capable of inhibiting the FabI enzyme and
    2. Combating critical gram-negative pathogens.
    • Project ANAGRANINF aims to produce a series of compounds with enhanced efficacy against gram-negative bacterial infections.
    • The project aims to identify a candidate molecule that meets WHO’s innovation criteria, ensuring a new chemical structure, no cross-resistance with existing antibiotic classes, and a novel mechanism of action.

    About the Candidate Molecule ‘MMV1578564’

    The selected hit molecule from the project, MMV1578564, has exhibited promising activity against gram-negative pathogens, providing a foundation for further research and development efforts.

    Back2Basics:

    1. Gram-Negative Bacteria:
      • Gram-negative bacteria have a thin peptidoglycan layer in their cell wall, which is located between the outer and inner membranes.
      • They stain pink or red when subjected to the Gram staining technique.
      • Gram-negative bacteria are generally more resistant to antibiotics due to the presence of an outer membrane that acts as a barrier against certain antibiotics.
      • Examples of gram-negative bacteria include Escherichia coli (E. coli), Salmonella spp., Pseudomonas aeruginosa, and Neisseria gonorrhoeae.
      • They are known to cause infections like pneumonia, bloodstream infections, wound infections, and meningitis in healthcare settings
    2. Gram-Positive Bacteria:
      • Gram-positive bacteria have a thick layer of peptidoglycan in their cell wall, which retains the crystal violet stain used in the Gram staining technique.
      • They appear purple or blue under a microscope after staining.
      • Gram-positive bacteria are generally more susceptible to antibiotics because their thick peptidoglycan layer allows antibiotics to penetrate more easily.
      • Examples of gram-positive bacteria include Staphylococcus aureus, Streptococcus pneumoniae, Bacillus subtilis, and Clostridium difficile.
      • Some examples of diseases caused by Gram-positive bacteria include anthrax, diphtheria, enterococcal infections, erysipelothricosis, and listeriosis.These bacteria can cause a range of infections from food poisoning to serious respiratory diseases and may require specific antibiotics for treatment.

     

    PYQ:

    2021: Consider the following:​

    1. Bacteria​
    2. Fungi​
    3. Virus​

    Which of the above can be cultured in artificial/synthetic medium?​

    1. 1 and 2 only ​
    2. 2 and 3 only​
    3. 1 and 3 only ​
    4. 1, 2 and 3​

     

    Practice MCQ:

    The recently launched Project ‘ANAGRANINF’ deals with:

    1. Agricultural Grant
    2. Artificial Intelligence
    3. Antibiotics Development
    4. None of these

  • Changing cancer nomenclature can improve treatment outcomes: doctors 

    Why in the news? 

    Physicians have expressed the necessity to categorize Cancers based on their genetic characteristics.

    Context:

    • An updated classification system could aid patients in comprehending the reasoning behind their treatment.
    • While two individuals may share the same type of cancer, their therapies could vary due to differences in the biological mechanisms driving their tumors.

    What motivates the need for change?

    •  Not limited to cancers of a single organ: With technological improvements, doctors are also able to find which genetic mutations are responsible for a tumor in many cases and target them with drugs.
      • All cancers from the same organ don’t always share the same mutations, and these mutations aren’t limited to cancers of a single organ
    • Access life-saving drugs sooner: This development in precision oncology requires cancers to be classified based on their molecular and genetic characteristics rather than the organ in which they originate, a team of researchers from France has written in a paper.
      • This way, according to them, cancer patients can also access life-saving drugs sooner. Oncologists spend a lot of time testing new drugs in clinical trials in a sequential manner, leading to “delay in treatment access”.

    Has sequential testing caused delays? 

      • A 2012 clinical trial conducted in the U.S. explored the efficacy of the drug nivolumab across various cancer types, including melanoma and kidney cancer. Nivolumab targets a specific protein receptor found in certain tumors, and it showed promising results by alleviating symptoms in individuals with tumors expressing this protein
    • Challenges Due to Traditional Organ-Based Classification-
      • Hindered by the traditional classification-Despite promising outcomes, the next logical step of testing nivolumab in individuals with tumors expressing the protein, regardless of cancer origin, was hindered by the traditional classification of cancers based on their organ of origin (e.g., breast, kidney, lung).
      • Multiple trials needed: As a consequence, researchers were compelled to conduct separate trials for each type of cancer, leading to significant delays in drug accessibility for patients with tumors expressing the targeted protein.
      • Time taking trails: Each trial requires substantial time and resources, from recruitment to data analysis, prolonging the process of drug approval and availability for specific cancer subtypes.

    Significance of categorizing cancers based on their genetic characteristics-

    • Faster drug development and availability: By targeting specific genetic mutations rather than specific cancer types, clinical trials for drugs can encompass all cancer types with those mutations. This approach potentially expedites the trial process, leading to faster drug development and availability.
    • Reduces confusion among the patient: The revamped classification system not only accelerates clinical trial timelines but also enhances patient understanding of treatment rationale. Patients often receive different therapies for the same cancer due to diverse underlying biological mechanisms. Aligning cancer names with biological mechanisms reduces confusion and helps patients comprehend the reasoning behind their treatment plans.
    • Personalized treatment: Physicians, including Dr. Jobanputra, emphasize the importance of educating patients about the molecular characteristics of their cancers. As the approach to cancer treatment becomes more personalized, understanding these molecular aspects becomes crucial as they directly impact prognosis and treatment costs.
    • Reducing the timing in trial-naming cancers based on their biological characteristics rather than their anatomical origin can significantly reduce the time required to conduct clinical trials. This shift eliminates the need for separate trials for each cancer type defined by organ of origin, streamlining the research process

    Challenges in Implementing the Proposed Cancer Classification Change:

    • Limited Access to Genetic Testing: The accessibility and affordability of genetic testing are major hurdles, particularly in regions like India where many patients cannot afford these tests.
      • Without widespread access to such tests, implementing a classification system based on molecular alterations becomes impractical.
    • Financial Barriers to Genetic Testing: The cost of genetic testing in Indian labs and abroad is prohibitively high for many patients, further exacerbating the issue of limited access.
      • Addressing these financial barriers is crucial for ensuring equitable access to precision oncology.
    • Lack of Patients in Clinical Trials: Clinical trials based on molecular signatures require a significant number of patients with each type of cancer to produce meaningful results.
      • Without adequate representation across cancer types, there is a risk of generalizing results, limiting the effectiveness of precision oncology approaches.
    • Time-taking Process: Transitioning to a new diagnostic nomenclature based on molecular alterations will likely occur gradually and require careful implementation.
      • While the proposed change has the potential to improve drug accessibility, its full realization will take time and concerted effort to overcome various challenges.

    Conclusion: Categorizing cancers based on genetic characteristics can streamline treatment, improve drug accessibility, and enhance patient understanding. However, challenges like limited access to genetic testing and lack of patient representation in trials must be addressed.

  • Many elections, AI’s dark dimension

    Why in the news? 

    With a series of elections to be held across the world in 2024, the potential of AI to disrupt democracies cannot be dismissed.

    • The rapid development of Generative Artificial Intelligence (GAI) and its potential evolution into Artificial General Intelligence (AGI) could have significant implications for elections.

    AI and the Electoral landscape in India (Possible opportunities and Concerns):

    Opportunities: 

    • Campaign Strategy Revolution: AI tools like sentiment analysis and chatbots optimize campaign strategies, making them more efficient and cost-effective.
    • Disinformation Campaigns: AI facilitates can also be used against targeted disinformation campaigns, spreading fake news tailored to specific demographics or regions.
    • Technological Advancements: Rapid developments in AI technologies simulate real-world interactions and have the potential to influence electoral dynamics significantly.
    • Micro-Targeting Voters: AI enables precise targeting based on data like demographics and online behaviour, enhancing campaign effectiveness.
    • Influence through Personalization: Tailored messages resonate better with voters, potentially swaying opinions.

    Concerns

    • Quality and Quantity of Misinformation: In the upcoming 2024 elections, AI-driven disinformation campaigns are expected to overwhelm voters with vast quantities of incorrect information, including hyper-realistic Deep Fakes and micro-targeted content.
    • Challenges to Democracy: The disruptive potential of AI in influencing electoral behaviour necessitates the implementation of robust checks and balances to prevent AI-driven manipulation and ensure the integrity of democratic processes.
    • Deep Fake Concerns: There are fears of AI-powered “Deep Fake Elections,” where AI-generated content manipulates and confuses voters. This phenomenon may exploit existing societal attitudes, such as the reported support for authoritarianism in India.
    • Propaganda Techniques: AI facilitates the development of sophisticated propaganda techniques, aiming to mislead and manipulate voters. As elections progress, newer methods emerge, potentially leading to the proliferation of Deep Fake content.
    • Disinformation Amplification: AI technology amplifies the spread of falsehoods and misinformation, posing a significant threat to democracies by confusing and misleading the electorate on an unprecedented scale.

    What are ways to tackle AI ‘determinism’? (Way Forward):

    • Mitigate voter mistrust: AI-deployed tactics may erode trust in democratic institutions and processes, highlighting the need for measures to counter AI determinism and mitigate voter mistrust.
    • Checks and Balances: While acknowledging AI’s considerable potential, it is imperative to implement checks and balances to mitigate its harmful effects and safeguard against AI’s unpredictable behavior.
    • Inconsistencies in AI Models: Public scrutiny over inaccuracies associated with AI models, such as those observed with Google, underscores the inherent dangers of relying solely on AI for decision-making without adequate validation and oversight.
    • Existential Threats: Beyond biases in design and development, AI systems pose existential threats, including adversarial capabilities like poisoning, backdooring, and evasion, which undermine the reliability and effectiveness of AI solutions.
    • Mitigating Adversarial Capabilities: Current concepts and ideas for mitigating adversarial capabilities in AI systems are insufficient, requiring further research and development to address the inherent vulnerabilities and risks associated with AI technology.

  • Multi-purpose app SAKHI to assist Gaganyaan Crew

    What is the news-

    • The Vikram Sarabhai Space Centre (VSSC), an ISRO facility located at Thumba in Thiruvananthapuram, has developed a multi-purpose app ‘SAKHI’ to assist Gaganyaan Crew.

    About SAKHI

    • The Space-borne Assistant and Knowledge Hub for Crew Interaction (SAKHI) is equipped to monitor astronauts’ health, maintain communication with Earth, and manage dietary schedules.
    • It serves as an essential tool for the crew, offering real-time assistance and access to necessary data.
    • It would assist astronauts during the Gaganyaan space flight mission, facilitating tasks such as accessing vital technical information and communication.
    • Strapped to astronauts’ space suits, it allows for easy access and facilitates the maintenance of mission logs in various formats.

    Utility offered by SAKHI

    • Health Monitoring: SAKHI provides comprehensive health monitoring, including parameters like blood pressure, heart rate, and oxygen saturation. It also reminds astronauts about hydration, dietary schedules, and sleep patterns, enhancing their mission efficiency.
    • Communication: SAKHI maintains communication between the crew, onboard computers, and ground-based stations, ensuring seamless connectivity.

    Gaganyaan Mission Timeline:

    • ISRO aims to launch the Gaganyaan human spaceflight mission in 2025.
    • The identities of the four astronaut-designates, all IAF test pilots, were revealed at a high-profile event attended by PM at the VSSC on February 27.
    • The final crew for the mission will be selected from among the four astronaut-designates.

    Also read:

    4 IAF Gaganyaan Astronaut-designates named

     

    PYQ:

    Which of the following is/are cited by the scientists as evidence/evidences for the continued expansion of the universe? (2012)

    1. Detection of microwaves in space
    2. Observation of redshift phenomenon in space
    3. Movement of asteroids in space
    4. Occurrence of supernova explosions in space

    Select the correct answer using the codes given below:

    1. 1 and 2
    2. 2 only
    3. 1, 3 and 4
    4. None of the above can be cited as evidence

  • 7 Ghost Particles pierce through Earth: IceCube Observations

    Why in the news

    • Researchers at the IceCube Observatory, buried beneath the Antarctic ice, have identified seven potential instances of elusive “Ghost Particles” or astrophysical Tau Neutrinos as they penetrated through Earth.
    • These neutrinos are pivotal for understanding the cosmic exchanges between Earth and the vast universe.

    What are Neutrinos?

    • Neutrinos, often referred to as “ghost particles,” are subatomic particles characterized by their nearly zero mass and lack of electric charge.
    • They traverse through matter with minimal interaction, making their detection extremely challenging.
    • Previously believed to be massless, evidence has emerged indicating that neutrinos possess a very small mass.
    • Neutrinos rank among the most abundant particles in the universe.
    • While neutrinos and electrons behave similarly in terms of nuclear forces, neither of them engages in strong nuclear interactions.
    • However, both participate in weak nuclear interactions.
    • Neutrinos are produced during events such as nuclear fusion in stars like the Sun or nuclear fission in reactors.

    Properties of Neutrinos

    Electric Charge Electrically Neutral
    Mass Extremely Low (Exact Masses Not Known)
    Types Electron Neutrino, Muon Neutrino, Tau Neutrino
    Interaction Weak Interaction
    Speed Close to the Speed of Light
    Spin Fermion, Half-Integer Spin
    Neutrino Oscillations Neutrinos Change Flavor during Travel
    Interactions Very Weak Interaction with Matter
    Abundance Among the Most Abundant Particles in the Universe
    Cosmic Messengers Can Carry Information from Distant Cosmic Sources

     

    Why Neutrinos are termed “Ghost Particles”?

     

    • The weak charge and almost imperceptible mass of neutrinos render them exceedingly difficult for scientists’ to detect directly.
    • Due to their rare interactions with other particles, tracking neutrinos proves nearly impossible.

    Significance of Neutrino Detection

    • The origins of the abundant neutrino particles remain largely unknown to scientists.
    • There’s a hypothesis suggesting their potential role in the early universe shortly after the Big Bang, yet concrete evidence remains elusive.
    • Understanding neutrinos better holds the promise of unraveling numerous scientific phenomena, including the mysterious origins of cosmic rays, which neutrinos are known to carry.
    • Researchers anticipate that pinpointing the source of neutrinos will aid in explaining the origins of cosmic rays, a puzzle that has perplexed scientists for centuries.

    About IceCube Observatory

    icecube

    • Location: The IceCube Neutrino Observatory is situated near the Amundsen-Scott South Pole Station in Antarctica.
    • Components:
    1. IceCube: The primary detector consists of 5,160 digital optical modules (DOMs) attached to vertical strings frozen into the ice.
    2. IceTop: Located on top of IceCube strings, it serves as a veto and calibration detector for cosmic rays.
    3. DeepCore: A denser subdetector within IceCube that lowers the neutrino energy threshold for studying neutrino oscillations.
    • Construction:
    1. Completed in December 2010 with 86 strings deployed over seven austral summers.
    2. Involved melting holes in the ice to depths of 2,450 meters and deploying sensors connected to cables.
    • Research Goals:
    1. Observing neutrinos from various astrophysical sources to study cosmic phenomena like exploding stars, gamma-ray bursts, and black holes.
    2. Studying cosmic rays interacting with the Earth’s atmosphere to reveal structures not fully understood.
    3. Advancing neutrino astronomy and exploring high-energy processes in the Universe.

     

    Recent Neutrino Observatories in news:

     

    [1] Indian Neutrino Observatory (INO)

    • INO approved in 2015, is a proposed particle physics research mega project.
    • Its objective is to study neutrinos in a 1,200 meter deep cave.
    • The primary objective of the INO Project is to study neutrinos, one of the most abundant fundamental particles, coming from various sources and using an underground Iron calorimeter (ICAL) detector.
    • Its location is decided to be at the Bodi West Hills (BWH) region near Pottipuram village in Theni district of Tamil Nadu (110 km from the temple town of Madurai).

    [2] China’s TRIDENT

    • Scheduled for completion in 2030, TRIDENT, aptly nicknamed “Ocean Bell” or “Hai ling” in Chinese.
    • It will be positioned 11,500 feet (3,500 meters) beneath the ocean’s surface in the Western Pacific.
    • It seeks to explore the realm of neutrinos, transient particles that momentarily interact with the deep ocean, emitting faint flashes of light.

     

    PYQs:

    (1) In the context of modern scientific research, consider the following statements about ‘IceCube’, a particle detector located at the South Pole, which was recently in the news: (2015)

    1. It is the world’s largest neutrino detector, encompassing a cubic kilometre of ice.
    2. It is a powerful telescope to search for dark matter.
    3. It is buried deep in the ice.

    Which of the statements given above is/are correct?

    1. 1 only
    2. 2 and 3 only
    3. 1 and 3 only
    4. 1, 2 and 3

     

    (2) India-based Neutrino Observatory is included by the planning commission as a mega-science project under the 11th Five-year plan. In this context, consider the following statements: (2010)

    1. Neutrinos are chargeless elementary particles that travel close to the speed of light.
    2. Neutrinos are created in nuclear reactions of beta decay.
    3. Neutrinos have a negligible, but non-zero mass.
    4. Trillions of Neutrinos pass through the human body every second.

    Which of the statements given above are correct?

    1. 1 and 3 only
    2. 1, 2 and 3 only
    3. 2, 3 and 4
    4. 1, 2, 3 and 4