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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.

  • What are Synthetic Medical Images?

    Synthetic medical images are AI-generated images created without using traditional imaging devices like MRI, CT scans, or X-rays.

    Why in the News?

    As we consider how artificial intelligence (AI) is transforming various fields, one emerging area is the use of synthetic medical images in healthcare.

    What are Synthetic Medical Images?

    • Synthetic medical images are AI-generated images created without using traditional imaging devices like MRI, CT scans, or X-rays.
    • These images are constructed using mathematical models or AI techniques, such as generative adversarial networks (GANs), diffusion models, and autoencoders.

    Advantages offered

    • Intra- and Inter-Modality Translation: Generate images from the same or different types of scans, helping when certain scans are unavailable.
    • Privacy Protection: Created without patient data, reducing privacy concerns and easing data sharing for research.
    • Cost and Time Efficiency: Synthetic images are quicker and cheaper to generate compared to real medical scans.
    • Scalability: Easier to produce large volumes of medical data for AI training and research.

    Challenges posed

    • Potential for Misuse: Could be used to create medical deepfakes, leading to fraudulent claims or fake clinical findings.
    • Lack of Real-World Complexity: May not capture subtle details found in real medical data, potentially lowering diagnostic accuracy.
    • Truth Erosion: Relying too heavily on synthetic data may distort AI models, leading to diagnoses that don’t align with real-world cases.
    • Ethical and Regulatory Concerns: Questions around how these images should be controlled and monitored to avoid misuse.

    PYQ:

    [2020] With the present state of development, Artificial Intelligence can effectively do which of the following?

    1. Bring down electricity consumption in industrial units
    2. Create meaningful short stories and songs
    3. Disease diagnosis
    4. Text-to-Speech Conversion
    5. Wireless transmission of electrical energy

    Select the correct answer using the code given below:

    (a) 1, 2, 3 and 5 only

    (b) 1, 3 and 4 only

    (c) 2, 4 and 5 only

    (d) 1, 2, 3, 4 and 5

  • [pib] WHO declares that India has eliminated Trachoma as a public health problem in 2024

    Why in the News?

    • The World Health Organization (WHO) has declared that India has successfully eliminated Trachoma as a public health problem.
      • This makes India the third country in the Southeast Asia Region to achieve this milestone.
    • WHO has classified Trachoma as a neglected tropical disease (NTD).
    • WHO estimates that around 150 million people worldwide are affected by Trachoma, and 6 million of them are either blind or at risk of severe visual problems.
    • Trachoma is commonly found in underprivileged communities living in poor conditions.

    What is Trachoma?

    • Trachoma is a bacterial infection that affects the eyes.
    • It is caused by the bacterium Chlamydia Trachomatis.
    • It is contagious, spreading through contact with the eyes, eyelids, or secretions from the nose or throat of an infected person.
    • If untreated, Trachoma can lead to irreversible blindness.

    Trachoma in India: A Historical Perspective

    • In the 1950s and 1960s, Trachoma was one of the leading causes of blindness in India.
    • To tackle this, India launched the National Trachoma Control Program in 1963.
    • Later, these efforts were integrated into India’s National Program for Control of Blindness (NPCB).
      • In 1971, the rate of blindness due to trachoma was 5% in the country.
      • Due to various interventions under the National Programme for Control of Blindness & Visual Impairment (NPCBVI), the rate has now dropped to less than 1%.

    What are the key measures taken to eliminate Trachoma?

    • India implemented the WHO SAFE strategy across the country. This strategy includes:
    1. Surgery
    2. Antibiotics
    3. Facial hygiene
    4. Environmental cleanliness
    • Although by 2017, India was declared free from infective Trachoma, it continued surveillance of Trachoma cases from 2019 to 2024.

    PYQ:

    [2018] Appropriate local community-level healthcare intervention is a prerequisite to achieve ‘Health for All’ in India. Explain.

  • What is the Marburg Virus?

    Why in the News?

    Rwanda has reported a Marburg virus outbreak with several confirmed cases and deaths, making it a country of concern for public health.

    About the Marburg Virus

    • The Marburg virus is a highly dangerous virus that causes Marburg Virus Disease (MVD), also known as Marburg Hemorrhagic Fever.
    • It belongs to the same family of viruses as Ebola (the filovirus family).
    • MVD has a case fatality rate that can range from 24% to 88%, depending on the virus strain and how cases are managed.
    • The virus was first identified in 1967 during simultaneous outbreaks in Marburg and Frankfurt in Germany.

    How does it spread?

    • The Marburg virus initially spreads from animals to humans, primarily through exposure to Rousettus bats, particularly the Egyptian fruit bat, found in caves or mines.
    • Once a person is infected, it can spread from human to human through:
      • Direct contact with the blood, and bodily fluids (urine, saliva, sweat, vomit, feces, breast milk, and semen) of an infected person.
      • Indirect contact with surfaces or objects like bedding or clothing that have been contaminated with these fluids.
      • Medical workers are often at risk, especially during outbreaks, due to contact with patients when proper infection control practices are not followed.
      • The virus does NOT spread through the air like the common cold or flu.

    Symptoms and Treatment

    • Symptoms typically begin between 2 to 21 days after exposure to the virus.
    • Early symptoms are: High fever, severe headache, Muscle aches, Chills, Severe watery diarrhoea, abdominal pain and cramping, nausea and vomiting. 
    • As the disease progresses, more severe symptoms may develop, including: Bleeding (both internal and external) ex—blood in vomit and faeces.
    • Patients often die 8 to 9 days after the onset of symptoms, primarily from severe blood loss and multiple organ failure.
    • Currently, there are no approved vaccines or specific antiviral treatments for MVD.  However, supportive care can improve the chances of survival.
    • Supportive treatment includes:
      • Rehydration with oral or intravenous fluids to maintain fluid and electrolyte balance.
      • Treatment of specific symptoms like fever, pain, and diarrhoea.
      • Blood transfusions and oxygen therapy may be required for severe cases.

    PYQ:

    [2015] Among the following, which were frequently mentioned in the news for the outbreak of Ebola virus recently?

    (a) Syria and Jordan

    (b) Guinea, Sierra Leone and Liberia

    (c) Philippines and Papua New Guinea

    (d) Jamaica, Haiti and Surinam

  • Machine Learning pioneers win Physics Nobel

    Why in the News?

    John Hopfield and Geoffrey Hinton have been awarded the Nobel Prize in Physics, 2024 for their pioneering work that laid the foundation for machine learning and artificial neural network.

    What is Artificial Neural Network?

    • Artificial neural networks are systems inspired by the structure of the brain.
    • In these networks, nodes represent the brain’s neurons, and they influence each other through connections, similar to synapses in the brain.
    • These connections can be made stronger or weaker through training.
    • For instance, connections between nodes with high values can become stronger as the network learns.
    • Since the 1980s, Hopfield and Hinton have been conducting important research on artificial neural networks.

    Significance of their contribution

    • Hinton’s work on the Boltzmann machine and other neural networks helped drive the explosive growth of machine learning.
    • His methods continue to play a significant role in modern AI, enabling technologies like image classification and pattern recognition.

    PYQ:

    [2020] With the present state of development, Artificial Intelligence can effectively do which of the following?

    1 Bring down electricity consumption in industrial units

    2. Create meaningful short stories and songs

    3. Disease diagnosis

    4. Text-to-Speech Conversion

    5. Wireless transmission of electrical energy

    Select the correct answer using the code given below:

    (a) 1, 2, 3 and 5 only

    (b) 1, 3 and 4 only

    (c) 2, 4 and 5 only

    (d) 1, 2, 3, 4 and 5

  • Hanle Dark Sky Reserve Star Party observed in Ladakh

    Why in the News?

    Expert astro-photographers and astronomers have gathered at the Hanle Dark Sky Reserve from for the second Star Party.

    Star Party and Its Details

    • The Star Party at the Hanle Dark Sky Reserve is a gathering of amateur astronomers and astro-photographers who travel to Hanle to observe and capture celestial phenomena.
    • It was hosted by the Indian Institute of Astrophysics (IIA) from and attended by over 45 astronomy enthusiasts from across India.
    • Participants brought their own telescopes and cameras to capture unique celestial events, including faint galaxies, the Zodiacal Light, and the rare sight of Venus casting a shadow.

    About Hanle Dark Sky Reserve (HDSR)

    • The HDSR is a designated area in Changthang region of eastern Ladakh created to control man-made light pollution and protect the naturally dark night skies.
    • It spans approximately 1,073 square kilometers and is home to the Indian Astronomical Observatory, operated by the Indian Institute of Astrophysics (IIA).
    • Established to promote astronomy and astrophotography, it offers some of the darkest skies in India, ideal for astronomical research.
    • Hanley is also the home to second-highest optical telescope in the world, established in 2001 by IIA.

    Special Features of HDSR and the Surrounding Region

    • High Altitude: Hanle is situated at a high altitude, providing clearer skies with minimal atmospheric interference.
    • Minimal Light Pollution: The region has low light pollution, which makes it perfect for observing faint celestial objects.
    • Dry Climate: The dry weather in the region contributes to excellent visibility, reducing the impact of humidity on astronomical observations.

    Significance of HDSR

    • Astrophotography and Research: The dark skies allow for detailed observation of celestial phenomena and astrophotography, attracting enthusiasts and researchers.
    • Astro-Tourism: The reserve fosters astro-tourism, boosting the local economy by creating jobs for guides and supporting infrastructure.
    • Preservation of Night Skies: It plays a crucial role in preserving the natural darkness of the sky, curbing light pollution in the region.
    • International Attention: The reserve has attracted amateur and professional astronomers from across India and beyond, making it a hub for astronomical events.
    PYQ:

    [2018] Consider the following phenomena:

    1. Light is affected by gravity.
    2. The Universe is constantly expanding.
    3. Matter warps its surrounding space-time.

    Which of the above is/are the prediction/predictions of Albert Einstein’s General Theory of Relativity, often discussed in media?

    (a) 1 and 2 only
    (b) 3 only
    (c) 1 and 3 only
    (d) 1, 2 and 3

  • [pib] World Cerebral Palsy Day

    Why in the News?

    • The World Cerebral Palsy Day was celebrated on October 6 with the theme ‘#UniquelyCP’.
      • It celebrates the uniqueness of individuals living with cerebral palsy by emphasizing that they are not defined by their disability.

    About Cerebral Palsy:

    Details
    Condition A group of neurological disorders affecting movement, muscle tone, and posture.
    Cause Abnormal brain development, usually before birth; can also occur due to injury during birth or early childhood.
    Types – Spastic CP: Stiff muscles, difficulty with movement (most common, 70-80% of cases).
    – Dyskinetic CP: Uncontrolled movements affecting limbs.
    – Ataxic CP: Poor balance and coordination.
    – Mixed CP: Combination of symptoms from different types.
    Symptoms Motor skill difficulties (crawling, walking); Muscle stiffness or looseness; Poor coordination and balance; Speech or swallowing difficulties; Seizures in some cases.
    Diagnosis Physical examination, MRI scans, developmental monitoring (usually diagnosed within first 2 years).
    Risk Factors Premature birth; Low birth weight; Multiple births; Maternal infections; Lack of oxygen during birth.
    Treatment – Physical, occupational, and speech therapies.
    – Medications to reduce muscle stiffness.
    – Surgery in severe cases.
    Life Expectancy Normal life expectancy in many cases, depending on severity and associated complications.
    Prevention Some causes are preventable with proper maternal care, but many are not.
    Policy Support Niramaya Health Insurance Scheme:

    • Coverage: Up to ₹1,00,000/- for treatments, surgeries, and therapies for persons with disabilities.
    • Eligibility: Covers individuals with Autism, Cerebral Palsy, Mental Retardation, and Multiple Disabilities.
    • Annual Renewal: Requires yearly renewal with different fees for BPL and APL categories.
    • Easy Application: Enrollment and claims processed online via Registered Organizations (ROs).

     

    PYQ:

    [2020] In order to enhance the prospects of social development, sound and adequate health care policies are needed particularly in the fields of geriatric and maternal health care. Discuss.

  • Why you should care about Mapping of the Fruit Fly’s Brain?

    Why in the News?

    Researcher have successfully mapped the entire brain of an adult fruit fly, marking the first time researchers have created such a detailed map of an adult animal’s brain.

    How Was the Fruit Fly Brain Mapped?

    • The process of mapping Fruit Flies (Drosophila melanogaster) brain began in 2013.
    • Scientists dunked the brain of an adult fruit fly in a chemical bath, hardening it into a solid block.
    • This process involved 7,050 sections of the brain and produced 21 million photos to map the entire brain.
    • The first high-resolution image of the brain was created more than a decade after the work started.

    Key findings

    • Scientists identified more than 50 million connections between 139,000 neurons (brain nerve cells).
    • They classified the cells into 8,453 distinct types, making it the largest catalogue of cell types in any brain.
    • The research gave insights into how different types of cells function and how the fruit fly’s eyes process motion and color.
    • A group of “hub neurons” was discovered, which may help speed up information flow.

    Significance of the Work

    • Although the human brain is more complex, the logic of how neurons communicate is similar between fruit flies and humans.
    • Fruit flies are a valuable model system for neuroscience. Their brains solve many of the same problems that human brains do.
    • It could help in understanding and treat mental health conditions like Parkinson’s and depression.
    • The mapping of the fruit fly’s brain raises hopes that scientists will eventually be able to map the entire human brain.

  • What are Psychedelic Drugs?

    Why in the News?

    Researchers from the Tata Institute of Fundamental Research (TIFR) in collaboration with researchers from Cornell, Yale, and Columbia has uncovered how a psychedelic drug interacts with the brain to alleviate anxiety.

    About Psychedelic Drugs

    • Psychedelic drugs are a class of psychoactive substances that alter perception, mood, and cognitive processes. 
    • These drugs often induce hallucinations, altered states of consciousness, and enhanced sensory experiences.
    • They are typically associated with spiritual experiences and have historically been linked with counterculture movements, but they are now being studied for their potential in medical therapies.
    • Examples of Psychedelic Drugs:
      • LSD (Lysergic acid diethylamide): Known for causing intense visual hallucinations and altering thoughts, it is one of the most potent psychedelics.
      • Psilocybin: The active compound found in magic mushrooms, known for creating visual and auditory hallucinations, as well as a deep sense of connection to the environment.
      • MDMA (3,4-methylenedioxymethamphetamine): Often associated with recreational use, but is also being researched for its therapeutic potential, especially in treating PTSD.
      • DMT (Dimethyltryptamine): Produces powerful, short-lived hallucinatory experiences, sometimes referred to as the “spirit molecule.”
      • Mescaline: Found in the peyote cactus, mescaline induces hallucinations and altered states of reality.

    How do they work?

    Psychedelics primarily affect the brain by interacting with the serotonin system, a network of neurotransmitters involved in regulating mood, perception, and cognition.

    • Serotonin Receptors: Psychedelics like LSD and psilocybin bind to 5-HT2A receptors, a type of serotonin receptor. This interaction leads to altered perception, enhanced mood, and hallucinations.
    • Brain Connectivity: They increase communication between different regions of the brain, breaking down normal patterns of activity. This leads to heightened creativity, altered sensory experiences, and a sense of connectedness.

    How Psychedelics hold promise for treating Anxiety and Depression?

    • Resetting Neural Circuits: Psychedelics may “reset” dysfunctional brain circuits, helping treat mood disorders.
    • Reduced Anxiety: They reduce overthinking by dampening activity in the brain’s default mode network.
    • Emotional Release: Patients experience emotional breakthroughs during psychedelic therapy sessions.
    • Neuroplasticity: Psychedelics may promote adaptive brain connections, aiding in recovery from chronic stress and depression.
    PYQ:

    [2018] India’s proximity to two of the world’s biggest illicit opium-growing states has enhanced her internal security concerns. Explain the linkages between drug trafficking and other illicit activities such as gunrunning, money laundering and human trafficking. What countermeasures should be taken to prevent the same? (250 Words, 15 Marks)

  • Fluorescent Nano-Diamonds (FND)

    Why in the News?

    Scientists at Purdue University have figured out how to levitate and spin Fluorescent Nanodiamonds (FNDs) in a vacuum.

    What are FNDs?

    • Fluorescent Nanodiamonds (FNDs) are stable, non-toxic carbon nanoparticles that emit consistent fluorescence, have a lifespan over 10 nanoseconds, and can be levitated and spun for advanced quantum research applications.

    What are their Applications?

    • Medical Diagnostics: FNDs are used for high-resolution imaging and tracking cells over extended periods due to their non-toxic nature.
    • Temperature Sensing: FNDs can measure temperatures at the microscale, making them useful for scientific experiments.
    • Correlative Microscopy: Their fluorescent properties make them ideal for combining different types of imaging techniques.
    • Sensor Technologies: Due to their sensitivity to acceleration and electric fields, FNDs can be used in industry sensors and gyroscopes for rotation sensing.
    • Quantum Computing: FNDs doped with nitrogen can be used for quantum superposition experiments and future quantum computing applications.

    PYQ:

    [2022] Which one of the following is the context in which the term “qubit” is mentioned?

    (a) Cloud Services

    (b) Quantum Computing

    (c) Visible Light Communication Technologies

    (d) Wireless Communication Technologies

  • BRCA Testing

    Why in the News?

    Angelina Jolie’s case highlighted hereditary breast and ovarian cancer (HBOC) after she underwent preventive surgeries due to a BRCA1 gene mutation.

    What is BRCA Testing?

    • BRCA testing is a genetic test that looks for mutations in the BRCA1 and BRCA2 genes.
    • These genes normally help repair DNA, but when they are mutated, they increase a person’s risk of developing certain cancers, particularly breast and ovarian cancers.
    • BRCA testing identifies whether a person has inherited these mutations, which can lead to Hereditary Breast and Ovarian Cancer (HBOC) and other cancers.
    • The test is done using a blood or saliva sample, which is collected and sent to a laboratory for analysis.
    • In the lab, next-generation DNA sequencing or other genetic analysis methods are used to examine the BRCA1 and BRCA2 genes for harmful mutations.
    • The test results can show whether a person has inherited a harmful mutation in these genes.
      • If the result is positive, it means they are at a higher risk for developing certain cancers.

    Issues with BRCA Testing

    • BRCA testing in India is expensive, costing between ₹15,000 to ₹30,000, which makes it unaffordable for many, particularly in lower-income populations.
    • Testing is often only offered to individuals with a family history of cancer, which misses about 50% of people who may have the mutations but no known family history.

    Significance for India

    • Breast cancer is the most common cancer among women in India, accounting for 27% of all cancer cases.
    • Women with BRCA mutations have up to a 72% risk of developing breast cancer.
      • Early identification allows for preventive measures, such as regular screenings or surgeries, which can reduce cancer incidence by up to 100%.
    • By increasing access to population-wide BRCA testing, India can improve early detection and reduce the burden of cancer on its healthcare system.
      • Early identification can also lower treatment costs and improve outcomes.

    PYQ:

    [2019] ‘RNA interference (RNAi)’ technology has gained popularity in the last few years. Why?

    1. It is used in developing gene silencing therapies.
    2. It can be used in developing therapies for the treatment of cancer.
    3. It can be used to develop hormone replacement therapies.
    4. It can be used to produce crop plants that are resistant to viral pathogens.

    Select the correct answer using the codes given below:

    (a) 1, 2 and 4

    (b) 2 and 3

    (c) 1 and 3

    (d) 1 and 4 only