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DAILY DOSE 28th FEB -2024 CURRENT AFFAIRS

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DAILY DOSE 28th FEB -2024 CURRENT AFFAIRS

 

History: 28th February

 National Science Day

·         In India, which commemorates the discovery of the Raman Effect by Indian physicist Sir C. V. Raman in 1928.

·         The Raman Effect is a phenomenon that occurs when light scatters as it passes through a transparent material, causing changes in energy and wavelength.

·         Raman was awarded the Nobel Prize in Physics in 1930 for his discovery.

1) Island On The Air (IOTA) Programme:

  • A dedicated team of amateur radio operators (HAMs) embarked on a significant journey from the cyclone shelters of Nachugunta Island, Andhra Pradesh, to participate in the Island on the Air (IOTA) expedition Programme.
  • Island On The Air (IOTA) Programme is a pioneering programme that connects radio amateurs worldwide with stations on islands.
  • It was established in 1964.
  • It is managed by IOTA Ltd in collaboration with the Radio Society of Great Britain (RSGB), categorising islands into groups for communication.
  • Amateur Radio is a popular hobby involving the use of radio frequency spectrum for non-commercial purposes.

 

2) Sudarshan Setu Bridge : Inaugrated

  • Prime Minister Narendra Modi recently inaugurated the ‘Sudarshan Setu’ bridge connecting Beyt Dwarka island to mainland Okha in Gujarat’s Devbhumi Dwarka district.
  • Sudarshan Setu’ Bridge is India’s longest cable-stayed bridge, at 2.32 km, on the Arabian Sea, connecting Beyt Dwarka island to mainland Okha in Gujarat’s Devbhumi Dwarka district.
  • It boasts a unique design, featuring a footpath adorned with verses from the Bhagavad Gita and images of Lord Krishna on both sides.
  • It also has solar panels installed on the upper portions of the footpath, generating one megawatt of electricity.
  • The 2.32 km bridge, including 900 metres of a central double-span cable-stayed portion and a 2.45 km long approach road, has been constructed at a cost of Rs 979 crore.
  • Beyt Dwarka is a small island off the coast of Dwarka, Gujarat located at the mouth of the Gulf of Kutch, the island is enclosed by a few temples, white sand beaches, and coral reefs.

3) Ken River: Cited By Pradhan Mantri In Mann Ki Baat

  • The Prime Minister in ‘Mann Ki Baat’ recently cited crocodiles in Ken River to hail how technology is being used extensively for the conservation of wildlife in different parts of the country.
  • Ken River is one of the major rivers of the Bundelkhand region of central India.
  • It flows through two states, namely Madhya Pradesh and Uttar Pradesh.
  • It is a tributary of the Yamuna River.
  • The river is the last tributary of the Yamuna before the Yamuna joins the Ganga.
  • The river originates near the village of Ahirgawan on the northwest slopes of the Kaimur Range in the district of Jabalpur, Madhya Pradesh.
  • Crossing the Bijawar-Panna hills, the river cuts a 60 km long, and 150- 180 m deep gorge. It is joined by several streams in this gorge, making waterfalls.
  • It travels a distance of 427 km and then merges with the Yamuna at Chilla village, near Fatehpur in Uttar Pradesh.
  • It is known for its rare Sajhar or Dendritic Agate stone.

 

4) Ribosomes: 3D Model

  • Using electron microscopy, scientists have recently managed to produce a 3D model of a part of the human cell, the ribosome.
  • Ribosomes are non-membrane-bound cell organelles made of RNA and proteins.
  • They are found in both prokaryotic and eukaryotic cells.
  • In eukaryotic organisms, ribosomes are found in the cytoplasm, mitochondria, and chloroplast.
  • All prokaryotic ribosomes are found free in the cytoplasm of the cell.
  • Ribosomal structure and function are strikingly similar in all organisms and organelles.
  • They are made of two subunits, the large and the small subunit which comprises ribosomal RNA (rRNA) and proteins.

 

5) Stratospheric Aerosol Intervention : Study

  • A recent study looked at the impact of stratospheric aerosol intervention (SAI) in mitigating global warming effects in West Asia (also known as the Middle East) and North Africa (MENA).
  • Stratospheric Aerosol Intervention (SAI) also known as Stratospheric Aerosol Injection, is a geoengineering or climate engineering approach that uses tiny reflective particles or aerosols to reflect sunlight into space in order to cool the planet and reverse or stop global warming.
  • It aims to mimic the cooling effects of volcanic eruptions by injecting Sulphur dioxide (SO2) directly into the stratosphere, where it forms sunlight-reflecting sulphate aerosols.
  • The 1991 eruption of Mount Pinatubo in the Philippines, often cited as the inspiration for this concept, deposited massive amounts of particulate matter and Sulphur dioxide (SO2) into the atmosphere.
  • This aerosol layer was reported to have lowered average temperatures around the world by about 0.5 °C (0.9 °F) over the following few years.

 

6) Garbhini-GA2: AI Model To Determine The Gestational Age Of a Foetus

  • Researchers recently developed Garbhini-GA2, an India-specific artificial intelligence model to precisely determine the gestational age of a foetus.
  • Garbhini-GA2 is the first India-specific artificial intelligence (AI) model to precisely determine the age of a foetus in a pregnant woman in the second and third trimesters.
  • It has been designed by researchers at the Indian Institute of Technology Madras and the Translational Health Science and Technology Institute (THSTI), Faridabad.
  • It is part of an interdisciplinary group for advanced research on birth outcomes – the Department of Biotechnology (DBT) India initiative (GARBH-Ini) programme.
  • It is the first late-trimester GA estimation model to be developed and validated using Indian population data.

 

7) INDRA RV25: 240N: Micro Turbojet Engine

  • Hyderabad-based Raghu Vamsi Machine Tools Private Limited recently launched its fully indigenous Micro Turbojet Engine “INDRA RV25: 240N”.
  • INDRA RV25: 240N is a micro turbojet engine.
  • It is designed and developed indigenously by Hyderabad-based firm Raghu Vamsi Machine Tools with support from IIT Hyderabad.
  • It has primarily been developed for unmanned aerial vehicles (UAVs) or drones.
  • The engine has applications in UAVs, air taxis, jetpacks, auxiliary power units, range extenders, and power generation in the future.

 

8) UAE removed from money laundering ‘grey list’:

  • UAE was removed from the Paris-based Financial Action Task Force (FATF Grey List), a list also known as jurisdiction under increased monitoring list, which includes countries that are actively working with the FATF to address strategic deficiencies in their regimes to counter money laundering, terrorist financing, and proliferation financing.

 

9) First Asian country to ratify ILO convention:

  • The Philippines becomes the 38th country in the world and the first Asian country to ratify Convention No. 190.

 

10) PM Modi Inaugurates Sikkim’s First Railway Station In Rangpo:

  • Prime Minister Narendra Modi ceremonially laid the foundation stone for Sikkim’s inaugural railway station in Rangpo, marking a significant moment in the state’s history.

 

 

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