Latest NEST Notifications, Important Dates, and Updates: Download PDF or Get in Your Email

Get top class preparation for UGC right from your home: Get detailed illustrated notes covering entire syllabus: point-by-point for high retention.

  • Apr 8, 2020
  • 1 Global Seed Vault: Global Crop Diversity Trust, Need, Storage, Permafrost, Threat [ Science/Technology ]

    Global Seed Vault or Svalbard Global Seed Vault

    • It is a secure seed bank.

    • Backup of the backups.

    • Lies 360 feet inside of the 1,500-foot Plataberget mountain in Nordenskiöld Land on the island of Spitsbergen in Svalbard, Norway.

    • Svalbard is a Norwegian archipelago in the Arcti

    … (463 more words) …

  • 2 Arsenic Contamination: Forms, Uses, Threats, Arsenicosis, Arsenic Levels, Biomarkers [ Science/Technology, Environment/Ecology ]

    Arsenic

    • A chemical element with the symbol As and atomic number 33 atomic mass of 74.92.

    • It is a metalloid.

    • Occurs in many minerals usually in combination with sulfur and metals.

    • Toxic to almost all life forms.

    • Naturally present at high levels in the groundwater or a natural

    … (684 more words) …

  • Apr 6, 2020
  • 1 Endemic Diseases Caused by Rats - Plague, Rat Bite, Salmonellosis [ Health, Environment/Ecology, Down-to-Earth ]

    Plague

    • An infectious disease.

    • Caused by the bacterium Yersinia pestis.

    • Found usually in found in small mammals and their fleas.

    • Disease transmission occurs between animals via their fleas and as it is a zoonotic bacteria.

    • Can also transmit from animals to humans.

    • A case-fat

    … (564 more words) …

  • 2 Lassa Fever [ Health, Environment/Ecology, Down-to-Earth ]

    An acute viral hemorrhagic illness. Also known as Lassa hemorrhagic fever (LHF). Caused by Lassa virus which is a member of the arenavirus family of viruses. A single-stranded RNA virus. Endemic in Benin, Ghana, Guinea, Liberia, Mali, Sierra Leone, Togo and Nigeria including othe

    … (295 more words) …

  • Mar 28, 2020
  • 1 Malware Infection Kundankulam Nuclear Plant [ Science/Technology, Defense ]

    Nuclear installations and sites have been a prime target of both espionage and sabotage operations. Around 23 cyber incidents at nuclear facilities have been enlisted by NTI (Nuclear Threat Initiative) over the last three decades.

    Multitude of Threat Actors and Vectors

    • Software

    … (261 more words) …

  • Mar 20, 2020
  • 1 Dark Net, DDOS Attack, National Common Mobility Card (NCMC) and Earth BioGenome Project [ Science/Technology ]

    A computer network with restricted access. Used chiefly for illegal peer-to-peer file sharing. Also refers to networks that are not indexed by search engines such as Google, Yahoo or Bing. Only available to a select group of people and not to the general internet public. Only acc

    … (325 more words) …

  • 2 Sunspots, Solar Tsunami and Lifi [ Science/Technology ]

    Temporary phenomena on the Sun’s photosphere. Appear as spots darker than the surrounding areas. Regions of reduced surface temperature. Caused by concentrations of magnetic field flux that inhibits convection. Usually appear in pairs of opposite magnetic polarity.

    • Number varie

    … (168 more words) …

  • 3 EU Ruling on Gene Editing and IT and Computers [ Science/Technology ]

    The European Court of Justice. Organisms obtained by mutagenesis are also GMOs. Within the meaning of the GMO Directive.

    Gene Editing

    • Editing of the organism’s native genome.

    • CRISPR (Clustered Regularly Interspaced Short Palindromic Repeats) a gene editing technology.

    • CRISPR-

    … (236 more words) …

  • 4 Tribolelectric Nanogenerators - Wireless Transmission of Electrical Energy and MediPix Technology [ Science/Technology ]

    First time wireless transmission of electrical energy has been achieved. Key components-nanowires. Nanogenerator-A small electronic chip that harvests mechanical energy and converts it into electrical energy.

    Triboelectric effect- a type of contact electrification.

    Applications

    … (187 more words) …

  • 5 National Policy on Electronics 2019 and 3D Printed Skin [ Science/Technology ]

    Approval given by the Union government. Replaces the National Policy of Electronics 2012 (NPE 2012). Proposed by the Ministry of Electronics and Information Technology (MeitY). Aims to position India as a global hub for Electronics System Design and Manufacturing (ESDM). Formulat

    … (259 more words) …

  • Mar 19, 2020
  • 1 Optical Tweezers, Chirped Pulse Amplification and Thermal Battery Plant [ Science/Technology ]

    Optical tweezers grab particles, atoms, viruses and other living cells with their laser beam fingers. Invented by Arthur Ashkin. Tool allowed Ashkin to realise an old dream of science fiction – using the radiation pressure of light to move physical objects. Ashkin succeeded in ge

    … (151 more words) …

  • 2 NETRA, Agni V and Hyperloop Technology [ Science/Technology ]

    First indigenously built Airborne Early Warning and Control System (AEW&CS). Developed by DRDO. A light-weight autonomous UAV for long range surveillance and reconnaissance operations. Radar system is also mounted on Embraer aircraft which gives 240-degree coverage of airspace. H

    … (241 more words) …

  • 3 BOLD-QIT, INS Arihant and Digital Sky Platform [ Science/Technology ]

    BOLD-QIT (Border Electronically Dominated QRT Interception Technique). Under CIBMS (Comprehensive Integrated Border Management system). On India-Bangladesh border in Assam will be launched soon. Project to install technical systems under the CIBMS.

    • Enables Border Security Force

    … (175 more words) …

  • 4 International Thermonuclear Experimental Reactor (ITER) and APSARA – U [ Science/Technology ]

    The world’s largest experimental fusion facility is in France. Most complex science project in human history started in 2010. Use of hydrogen fusion, controlled by superconducting magnets, to produce massive heat energy. Nuclear fusion facility- An international cooperation among

    … (164 more words) …

  • 5 YUVIKA and PM-STIAC [ Science/Technology ]

    A special programme residential training program for School Children called ―Young Scientist Programme-YUvaVIgyaniKAryakram. Primarily aimed at imparting basic knowledge on Space Technology, Space Science and Space Applications to the younger ones. Intent of arousing their intere

    … (173 more words) …

  • 6 Liquid Water Lake in Mars and Unnati: Primary Objectives [ Science/Technology ]

    Expected to facilitate a better understanding on the likely presence of life on Mars. A lake stretching for 20-km. An 11-member Italian team of researchers surveyed the Planum Australe region, or the southern polar plains of Mars. Use of Mars Advanced Radar for Subsurface and Ion

    … (273 more words) …

  • 7 Vikas Engine and Oumuamua Comet Discovery [ Science/Technology ]

    A family of liquid fuelled rocket engines. Powers India’s launch vehicles PSLV and GSLV. Improving the payload capability of PSLV, GSLV and GSLV Mk-III launch vehicles. Used in second stage of PSLV which consists of four stages in its operation (Solid-Liquid-Solid-Liquid) and in

    … (183 more words) …

  • Mar 17, 2020
  • 1 First Hyper Spectral Imaging Satellite and Draft Space Activities Bill, 2017 [ Science/Technology ]

    HysIS is an earth observation satellite, weighing about 380 kg. Configured around ISRO’s Mini Satellite-2 (IMS-2) bus. Aim is to study the earth’s surface in the visible, near infrared and shortwave infrared regions of the electromagnetic spectrum. Mission life of about 5 years.

    … (353 more words) …

  • 2 GSAT-7A Launch - GSLV-F11 and ISRO-Chandrayaan-2 Mission [ Science/Technology ]

    GSAT-7A with GSLV-F11 (Geosynchronous Satellite Launch Vehicles). Launched by ISRO.

    GSAT-7A

    • Close to the intended orbit- GSLV-F11 injected GSAT-7A into a Geosynchronous Transfer Orbit (GTO).

    • An advanced communication satellite.

    • A Gregorian Antenna and other new technologies.

    … (289 more words) …

  • 3 Supercomputer: Param Shivay, Space, GSLV MK III [ Science/Technology ]

    SpiNNaker machine -Spiking Neural Network Architecture is capable of completing more than 200 million actions per second. Each of its chips is having 100 million transistors. Designed and built in The University of Manchester in the UK. SpiNNaker mimics the massively parallel com

    … (414 more words) …

  • 4 Research on CMB Radiation and National Supercomputing Mission [ Science/Technology ]

    Cosmic Microwave Background (CMB) radiation in Timbaktu village. Weak electromagnetic radiation from the early universe. This radiation comes from the objects that are observed in the universe, like stars or galaxies, it comes from things that are not formed yet.

    Research Signif

    … (192 more words) …

  • 5 India’s Manned Mission to Space and Mission Shakti - Anti-Satellite Missile Test [ Science/Technology ]

    Announcement by the Indian Space Research Organisation. Gaganyaan Mission. To be a reality by 2022. First set of astronauts to be identified from the Indian Air Force. India would become the fourth nation to launch a Human Spaceflight Mission after USA, Russia and China.

    Works i

    … (257 more words) …

  • Mar 16, 2020
  • 1 Achievements of Indians and Indigenisation of Technology [ Science/Technology ]

    Exoplanets are the celestial bodies orbiting stars outside the solar system in clearly defined elliptical paths. Habitability of exo-planets- Mainly based on its distance from its star (the planet should be neither too hot nor too cold). Indian Scientists have been trying since 2

    … (302 more words) …

  • 2 LIGO (Laser Interferometer Gravitational-Wave Observatory) and Discovery of Fast Radio Burst [ Science/Technology ]

    Detection of gravitational waves in 2015 by the Scientific Collaboration. Recent announcement regarding publishing a detailed explanation of how it analyses the noise in its detectors.

    2015 Discovery

    • Gravitational waves are ripples in the fabric of space-time.

    • Arises from the

    … (307 more words) …

  • 3 Green Propellants and Upgrade to Large Hadron Collider – CERN [ Science/Technology ]

    Green Propellants

    • Getting developed by ISRO.

    • Use in future rocket & satellite propulsion systems.

    • An eco-friendly solid propellant.

    • To eliminate the emission of chlorinated exhaust products from rocket.

    • Propellants are based on Glycidyl Azide Polymer (GAP) as fuel and Ammoni

    … (324 more words) …

  • 4 Developments and Their Applications and Effects in Everyday Life [ Science/Technology ]

    Change in ‘Kilogram’ Definition

    • Redefinition of the International system of units (SI).

    • Seven fundamental units.

    • Based on unchanging properties of nature.

    • These are the second (time), the metre (distance), and the candela (luminous intensity, a measure for light’s brightness)

    … (819 more words) …

  • Mar 15, 2020
  • 1 Sustainable Development: Mangalajodi Ecotourism Trust [ Health, Environment/Ecology ]

    Recently won the United Nations World Tourism Organisation (UNWTO) Awards for “Innovation in Tourism Enterprise”. Mangalajodi is a village along the northern banks of Chilika Lake in Odisha. MET being a community owned is a community managed wildlife conservation venture. It is p

    … (234 more words) …

  • 2 Status of Tigers in India, 2018 Report [ Health, Environment/Ecology ]

    4-years tiger census report. Shows numbers of the big cat have increased across all landscapes. Since 2014 the total number of tigers has risen by 33%. 83 % of the total tigers have been photographed by trap cameras.

    Various states and the tiger census growth report

    • Karnataka 2

    … (182 more words) …

  • 3 Minamata Convention and Biodiversity [ Health, Environment/Ecology ]

    Ratification of Minamata Convention on Mercury. Approved by the Union Cabinet. Convention on Mercury enabling India to become a Party of the Convention. First Conference of the Parties (CoP) under the Minamata Convention took place in Geneva, Switzerland in 2017. Adopted decision

    … (929 more words) …

  • 4 Climate Change-Global Scenario: Green Growth [ Health, Environment/Ecology ]

    Green Growth

    • OECD (Organisation for Economic Cooperation and Development) released a report.

    • Title- “Green Growth Indicators 2017”.

    • Highlights-The slow progress in achieving the Green Growth.

    • Fostering economic growth and development.

    • Ensuring the natural assets continue to

    … (846 more words) …

Last Updated:

Developed by: