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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.

  • Inspiration4: SpaceX’s first all-civilian space mission

    SpaceX has announced its ‘Inspiration4’ mission, the first all-civilian, non-governmental spaceflight, for launch.

    What is Inspiration4?

    • Inspiraton4 is a part of an effort to raise funds for pediatric treatment and research facility that focuses on children’s catastrophic diseases, particularly leukemia and other cancers.
    • The mission involves circling the Earth for three days and then splashing down into the Atlantic Ocean.
    • Inspiration4 will orbit the Earth at 575km, higher than the International Space Station (408km) and the Hubble space telescope (547km).
    • This will be the farthest distance travelled by a crewed mission since 2009, when astronauts last went to repair the Hubble.
    • The Dragon module that the group will be using has also been modified for the mission.
    • Usually, the SpaceX module is used for travelling to the ISS, where it has to dock or join the floating laboratory.

    UPSC may ask an MCQ asking: Which of the following is/are the space missions related to human flights? It may throw up 4-5 options (which we all get confused at after few months) like Cassini , InSight , Messanger, Voyager etc.

    Key feature: Dome window

    • Since Inspiration4 is not going to the ISS, the docking port has been removed and has been replaced with a dome window instead.
    • This dome window will offer breath-taking views of the Earth for the four travellers.
    • The window has been inspired by the Cupola, a module on the ISS used to make observations about our planet.

    Why is the mission significant?

    • According to a report in the Independent, the journey will present an opportunity for collecting large amounts of health data that will aid in planning future crewed space missions.
    • As per the report, they will collect data on ECG (electrocardiograph) activity, movement, sleep, heart rate, and rhythm, blood oxygen saturation, cabin noise and light intensity, which will help in assessing behavioral and cognitive changes over the journey.
    • The travelers will undergo balance and prescription tests just before and after their journey to assess their response to the change in gravity.
    • The immune system function will also be monitored by collecting blood. Their organ systems will also be monitored by an AI-powered ultrasound device.

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  • West Nile Virus outbreak in Russia

    Russia warned of a possible increase in West Nile virus infections this autumn as mild temperatures and heavy precipitation create favorable conditions for the mosquitos that carry it.

    West Nile virus (WNV)

    • WNV is mainly transmitted through mosquito bites and can lead to fatal neurological diseases in humans, although most people infected never develop any symptoms.
    • Cases of WNV occur during mosquito season, which starts in the summer and continues through fall.

    Its origin

    • Originally from Africa, the WNV has spread to Europe, Asia, and North America.
    • It was first isolated in a woman in the West Nile district of Uganda in 1937.
    • It was identified in birds in the Nile delta region in 1953.
    • Before 1997, WNV was not considered pathogenic for birds.
    • Human infections attributable to WNV have been reported in many countries for over 50 years.

    Symptoms

    • Infected persons usually have no symptoms or mild symptoms.
    • Some of the symptoms include fever, headache, body aches, skin rash, and swollen lymph glands.
    • They can last a few days to several weeks and usually, go away on their own.
    • Prolonged illness may cause inflammation of the brain, called encephalitis, or inflammation of the tissue that surrounds the brain and spinal cord, called meningitis.

    Treatment

    • There is no vaccine against the virus in humans although one exists for horses, the WHO says.

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  • What is Milky Sea Phenomenon?

    Some researchers would use satellites to study the elusive milky sea phenomenon.

    What is the Milky Sea?

    • Milky seas, also called mareel, is a luminous phenomenon in the ocean in which large areas of seawater appear to glow translucently (in varying shades of blue).
    • Such occurrences glow brightly enough at night to be visible from satellites orbiting Earth.
    • They are a rare nocturnal phenomenon in which the ocean’s surface emits a steady bright glow.

    Why do they glow?

    • Luminous bacteria cause the particles they colonize to glow.
    • The purpose of this glow could be to attract fish that eat them.
    • These bacteria thrive in the guts of fishes, so when their populations get too big for their main food supply, a fish’s stomach makes a great second option.

    How do they occur?

    • It is typically caused by Noctiluca scintillans (popularly known as “sea sparkle”), a dinoflagellate that glows when disturbed and is found in oceans throughout much of the world.
    • Once their population gets large enough – about 100 million individual cells per millilitre of water – a sort of internal biological switch is flipped and they all start glowing steadily.

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  • Free and Open Source Software

    Context

    Recognising its potential, in 2015, the Indian government announced a policy to encourage open source instead of proprietary technology for government applications. However, the true potential of this policy is yet to be realized.

    Advantages of FOSS

    • Free and Open Source Software (FOSS) today presents an alternative model to build digital technologies for population scale.
    • Freedom to modify: Unlike proprietary software, everyone has the freedom to edit, modify and reuse open-source code.
    • Reduced cost and innovation: This results in many benefits — reduced costs, no vendor lock-in, the ability to customise for local context, and greater innovation through wider collaboration.
    • Use in public service delivery: We have seen some great examples of public services being delivered through systems that use FOSS building blocks, including Aadhaar, GSTN, and the DigiLocker.
    • FOSS communities can examine the open-source code for adherence to data privacy principles, help find bugs, and ensure transparency and accountability.

    Challenges in adoption by government in GovTech

    • In 2015, the Indian government announced a policy to encourage open source instead of proprietary technology for government applications.
    • Several misconceptions remain in the understanding of FOSS, especially for GovTech.
    • Trust issue: “Free” in FOSS is perceived to be “free of cost” and FOSS is often mistaken to be less trustworthy and more vulnerable, whereas FOSS can actually create more trust between the government and citizens.
    • However, Many solutions launched by the government including Digilocker, Diksha, Aarogya Setu, Cowin — built on top of open-source digital platforms — have benefited from valuable inputs provided by volunteer open-source developers.
    • Such inputs have immensely helped in improving solutions and making them more robust.
    • Accountability issue: In the case of FOSS, there appears to be an absence of one clear “owner”, which makes it harder to identify who is accountable.
    • While this concern is legitimate, there are ways to mitigate it.
    • For example, by having the government’s in-house technical staff understand available documentation and getting key personnel to join relevant developer communities.

    Way forward for greater adoption of FOSS in GovTech

    • Here is a four-step path to make this vision a reality.
    • 1) Incentivise FOSS in government: The government’s policy requires all tech suppliers to submit bids with open source options.
    • Suppliers also need to justify in case they do not offer an open-source option
    • Sourcing departments are asked to weigh the lifetime costs and benefits of both alternatives before making a decision.
    • While this serves as a good nudge, the policy can perhaps go a step further by formally giving greater weightage to FOSS-specific metrics in the evaluation criteria in RFPs, and offering recognition to departments that deploy FOSS initiatives, such as, a special category under the Digital India Awards.
    • 2) Create a repository of GovtTech ready solutions: a repository of “GovTech ready” building blocks that are certified for use in government and audited for security compliances is needed.
    • Creating a repository of ready-to-use “GovTech-ised” building blocks can help departments quickly identify and deploy FOSS solutions in their applications.
    • 3) Encourage FOSS innovation: FOSS innovations can be encouraged through “GovTech hackathons and challenges”, bringing together the open-source community to design solutions for specific problem statements identified by government departments.
    • One such challenge — a #FOSS4Gov Innovation Challenge — was recently launched.
    • 4) Create an institutional mechanism: A credible institutional anchor is needed to be a home for FOSS-led innovation in India.
    • Such an institution can bring together FOSS champions and communities that are scattered across India around a shared agenda for collective impact.
    • Kerala’s International Centre for Free & Open Source Software (ICFOSS) is a great example of such an institution.

    Conclusion

    With an IT workforce of more than four million employees, what we need is a concerted push to harness the biggest promise that FOSS holds.

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  • BCG vaccine: 100 years and counting

    The first use of BCG (Bacillus Calmette-Guerin), the vaccine against tuberculosis (TB) in humans have been completed for 100 years.

    What is TB?

    • TB is a very ancient disease and has been documented to have existed in Egypt as early as 3000 BC.
    • It is caused by a bacterium called Mycobacterium tuberculosis, belonging to the Mycobacteriaceae family consisting of about 200 members.
    • Some of these cause diseases like TB and leprosy in humans and others infect a wide range of animals. Mycobacteria are also widely dispersed in the environment.
    • In humans, TB most commonly affects the lungs (pulmonary TB), but it can also affect other organs (extra-pulmonary TB).

    Yet not eliminated

    • Other historically dreaded diseases like smallpox, leprosy, plague, and cholera have been either eradicated or controlled to a large extent due to advances in science and technology.
    • However, TB continues to be a major public health problem in the world.
    • According to the WHO’s Global TB Report, 10 million people developed TB in 2019 with 1.4 million deaths. India accounts for 27% of these cases.

    BCG Vaccine for TB

    • BCG was developed by two Frenchmen, Albert Calmette and Camille Guerin, by modifying a strain of Mycobacterium Bovis (that causes TB in cattle) till it lost its capacity to cause disease while retaining its property to stimulate the immune system.
    • It was first used in humans in 1921.
    • Currently, BCG is the only licensed vaccine available for the prevention of TB.
    • It is the world’s most widely used vaccine with about 120 million doses every year and has an excellent safety record.

    BCG in India

    • In India, BCG was first introduced on a limited scale in 1948 and became a part of the National TB Control Programme in 1962.
    • India is committed to eliminating TB as a public health problem by 2025.

    Effectiveness of BCG

    • One intriguing fact about BCG is that it works well in some geographic locations and not so well in others.
    • Generally, the farther a country is from the equator, the higher is the efficacy.
    • In children, BCG provides strong protection against severe forms of TB.
    • This protective effect appears to wane with age and is far more variable in adolescents and adults, ranging from 0–80%.
    • In addition to its primary use as a vaccine against TB, BCG also protects against respiratory and bacterial infections of newborns and other mycobacterial diseases like leprosy and Buruli’s ulcer.
    • It is also used as an immunotherapy agent in cancer of the urinary bladder and malignant melanoma.

    Try answering this PYQ:

    What is the importance of using pneumococcal conjugate vaccines in India? (CSP 2020)

    1. These vaccines are effective against pneumonia as well as meningitis and sepsis.
    2. Dependence on antibiotics that are not effective against drug-resistant bacteria can be reduced.
    3. These vaccines have no side effects and cause no allergic reactions

    Select the correct answer using the given code below:

    (a) 1 only

    (b) 1 and 2 only

    (c) 3 only

    (d) 1, 2 and 3

     

    [wpdiscuz-feedback id=”0nhdmcqe70″ question=”Please leave a feedback on this” opened=”1″]Post your answers here.[/wpdiscuz-feedback]

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  • [pib] Merging of three Supermassive Black Holes

    Indian researchers have discovered three supermassive black holes from three galaxies merging together to form a triple active galactic nucleus, a compact region at the centre of a newly discovered galaxy that has a much-higher-than-normal luminosity.

    What are Supermassive black holes?

    • A supermassive black hole is the largest type of black hole, with mass on the order of millions to billions of times the mass of the Sun.
    • Black holes are a class of astronomical objects that have undergone gravitational collapse, leaving behind spheroidal regions of space from which nothing can escape, not even light.
    • They are difficult to detect because they do not emit any light. But they can reveal their presence by interacting with their surroundings.

    Active galactic nuclei (AGN) from such black holes

    • When the dust and gas from the surroundings fall onto a supermassive black hole, some of the mass is swallowed by the black hole, but some of it is converted into energy.
    • This is emitted back as electromagnetic radiation that makes the black hole appear very luminous.
    • They are called active galactic nuclei (AGN) and release huge amounts of ionized particles and energy into the galaxy and its environment.
    • Both of these ultimately contribute to the growth of the medium around the galaxy and ultimately the evolution of the galaxy itself.

    How does merger of black holes occur?

    • A major factor impacting galaxy evolution is galaxy interactions, which happen when galaxies move close by each other and exert tremendous gravitational forces on each other.
    • During such galaxy interactions, the respective supermassive black holes can get near each other.
    • The dual black holes start consuming gas from their surroundings and become dual AGN.

    What happens when galaxies collide?

    • If two galaxies collide, their black hole will also come closer by transferring the kinetic energy to the surrounding gas.
    • The distance between the blackholes decreases with time until the separation is around a parsec (3.26 light-years).
    • The two black holes are then unable to lose any further kinetic energy in order to get even closer and merge.
    • This is known as the final parsec problem.

    Here comes the third black hole

    • Many AGN pairs have been detected in the past, but triple AGN are extremely rare, and only a handful has been detected before using X-ray observations.
    • The presence of a third black hole can solve this problem.
    • The dual merging blackholes can transfer their energy to the third blackhole and merge with each other.

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  • Colourful molecules of turmeric

    Researchers have come forward with some interesting findings on Turmeric.

    Turmeric

    • Turmeric has about 3% of the active component molecule called curcumin, a polyphenol diketone (and not a steroid).
    • Researchers point out that there is another molecule in turmeric called piperine, which is an alkaloid, responsible for the pungency of pepper that we use every day in our cooking, along with turmeric.
    • Piperine enhances curcumin absorption in the body. It gives turmeric its multivariate healing and protective power.

    Benefits of turmeric consumption

    • Turmeric has been known for over 4,000 years in the Indian subcontinent, West Asia, Burma, Indonesia and China, and is used as an essential part of our daily food – what the colonials called curry powder.
    • It has also been known as a medicine for ages, and to have anti-bacterial, anti-oxidant and anti-inflammatory properties.
    • Herbal medicine experts have used turmeric to treat painful symptoms of arthritis, joint stiffness, and joint pain.
    • They have also claimed that turmeric helps cure acute kidney injuries. Some of these claims need to be checked using controlled trials.

    Against COVID-19

    • Most recently, an exciting study has recently been published by a group in Mumbai which shows that turmeric aids in the treatment of COVID-19 patients.
    • The researchers did a trial of about 40 COVID-19 patients and found that turmeric could substantially reduce morbidity and mortality.

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  • Nuclear Fusion and the recent breakthrough

    California based researchers have announced that their experiment has made a breakthrough in nuclear fusion research.

    What exactly is Nuclear Fusion?

    • Nuclear fusion is defined as the combining of several small nuclei into one large nucleus with the subsequent release of huge amounts of energy.
    • The difference in mass between the reactants and products is manifested as either the release or the absorption of energy.
    • Nuclear fusion powers our sun and harnessing this fusion energy could provide an unlimited amount of renewable energy.
    • An example of nuclear fusion is the process of four hydrogens coming together to form helium.

    What was the experiment?

    • In the experiment, lasers were used to heat a small target or fuel pellets.
    • These pellets containing deuterium and tritium fused and produced more energy.
    • The team noted that they were able to achieve a yield of more than 1.3 megajoules of heat energy.
    • This megajoule of energy released in the experiment is indeed impressive in fusion terms.

    How was the new breakthrough achieved?

    • The team used new diagnostics, improved laser precision, and even made changes to the design.
    • They applied laser energy on fuel pellets to heat and pressurize them at conditions similar to that at the center of our Sun. This triggered the fusion reactions.
    • These reactions released positively charged particles called alpha particles, which in turn heated the surrounding plasma.
    • At high temperatures, electrons are ripped from an atom’s nuclei and become a plasma or an ionized state of matter. Plasma is also known as the fourth state of matter.
    • The heated plasma also released alpha particles and a self-sustaining reaction called ignition took place.

    Future prospects: Benefits

    • It is expected that fusion could meet humanity’s energy needs for millions of years.
    • Fusion fuel is plentiful and easily accessible: deuterium can be extracted inexpensively from seawater, and tritium can be produced from naturally abundant lithium.
    • Future fusion reactors will not produce high activity, long-lived nuclear waste, and a meltdown at a fusion reactor is practically impossible.
    • Importantly, nuclear fusion does not emit carbon dioxide or other greenhouse gases into the atmosphere, and so along with nuclear fission could play a future climate change mitigating role as a low carbon energy source.

  • Celebrating Einstein’s century

    Context

    In 1921, the Nobel Prize Committee concluded that Einstein would have to wait and the Committee decided not to award the Prize to anyone in 1921. Opinions changed in a year and when Einstein did receive the 1921 Prize in 1922.

    Background

    • Noble Prize was not awarded for his theories of relativity but for “his services to Theoretical Physics, and especially for his discovery of the law of the photoelectric effect”.
    • The citation harked back to the revolutionary theories that Einstein had established in 1905. ‘Annus Mirabilis’, or the Year of Miracles, is how 1905 is remembered by physicists because Einstein, only 26 then, published four remarkable papers that year.
    • One of them explained that light was made of photons and when the light shone on metal, each photon’s energy correlated to the electron’s speed on the metal’s surface.
    • This theory redefined the composition of light and Einstein himself dubbed it revolutionary.
    • It was for this that he received the Nobel Prize.

    Special theory of relativity

    • The special theory of relativity was published in 1905.
    • James Maxwell had established that light was an electromagnetic wave and the value of its speed was calculated. Building on this,
    • Speed of light remains constant for all observers: Einstein understood that while moving from one frame of reference to another, which is moving at a different speed, the speed of light remains a constant.
    • He gave a physical interpretation to the equations governing the transformation from one frame to another based on this fact.
    • Time slows down when measured from the rest: Einstein’s theory establishes that time moves slower within a moving body when measured from a point at rest (but moves normally within the moving body itself).
    • Length reduces: The length of the moving body contracts when measured from an outside point at rest.
    • When a moving body emits light, the length contraction and time slowdown of the moving body are just exactly what are needed to restore the speed of light to its constant value.
    • Einstein’s insight was that there was no absolute time because time was measured by the simultaneity of two events and this simultaneity would be observed differently.
    • As lagniappe to the scientific community, Einstein published his famous mass-energy equivalence E=mc2 in late 1905.
    • A mundane example of the application of the special theory of relativity is the use of GPS on our phones.

    General theory of relativity

    • The theory is general enough to apply to all forms of motion, including those where gravity does not appear.
    • Einstein worked out equations using tensors, the mathematical implement to describe the transformation of different dimensions.
    • In November 1915, Einstein completed the general theory of relativity.
    • As per this theory, space and time form a continuum, like a fabric, and every object in the universe distorts this fabric, much like how dropping a large ball distorts a taut trampoline sheet.
    • This distortion is gravity. It produces two effects.
    • One, the fabric causes any other object in the vicinity to move towards the heavier object and this is why gravity causes an object to pull things towards it.
    • Two, it bends light in the process of attracting it.

    Conclusion

    In just two decades, Einstein led physics out of its traditional moorings, laid the entablature of modern physics on Newtonian and Maxwellian pillars of classical physics and opened it up to newer questions.

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  • [pib] Revamped National Gene Bank

    The Union Agriculture Minister has inaugurated the world’s second-largest refurbished gene bank at the National Bureau of Plant Genetic Resources.

    National Gene Bank

    • The National Gene Bank was established in the year 1996 to preserve the seeds of Plant Genetic Resources (PGR) for future generations.
    • It has the capacity to preserve about one million germplasm in the form of seeds.
    • Presently it is protecting 4.52 lakh accessions, of which 2.7 lakh are Indian germplasm and the rest have been imported from other countries.
    • National Bureau of Plant Genetic Resources is meeting the need of in-situ and ex-situ germplasm conservation through Delhi Headquarters and 10 regional stations in the country.

    Key facilities provided

    • The NGB has four kinds of facilities to cater to long-term as well as medium-term conservation namely:
    1. Seed Gene bank (- 18°C),
    2. Cryo gene bank (-170°C to -196°C),
    3. In-vitro Gene bank (25°C), and
    4. Field Gene bank
    • It stores different crop groups such as cereals, millets, medicinal and aromatic plants, and narcotics, etc.

    What is the latest update?

    • This is the world’s second-largest gene bank located in the national capital.
    • It has the capacity to preserve about one million germplasm in the form of seeds.
    • Presently, it is protecting 4.52 lakh accessions, of which 2.7 lakh are Indian germplasm and the rest have been imported from other countries.

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    Also read:

    Svalbard Global Seed Vault