Recently the hydrogen line was in the news.

About Hydrogen Line or 21 cm Line 

• It is a spectral line emitted by atomic hydrogen.
• It happens when an electron that orbits the nucleus of a hydrogen atom, jumps from a higher energy level to a lower one.
  • This jump releases energy in the form of light, specifically with a wavelength of about 21 centimeters.
• Applications in Radio Astrophysics:
  • Studying composition and evolution of solar system & Universe.
  • Mapping of Hydrogen in Milky Way Galaxy
  • To demonstrate the presence of dark matter

NewSpace Research and Technologies successfully tested a 100-kg Max Take Off Weight (MTOW) Unmanned Aerial Vehicle (UAV) at the Unming La pass.

About Unming La Pass:

• Located at 19,024 ft. in the Eastern Ladakh along the Ladakh Range.
• Also, it is renowned for being the highest motorable road in the world. 
  • Constructed by the Border Road Organization (BRO) under Project Himank.
• Geostrategic importance of Road- Improves connectivity to the Line of Actual Control (LAC)
  • Also, improves local connectivity in Chisumle-Demchok sector to Leh and also boosts tourism in Ladakh.

Other important passes in Ladakh: Khardung La, Chang La, Tanglang La, etc. 

Recently, CSC officially included Bangladesh as its fifth member. 

About CSC

• A regional security grouping.
• Aim: To make maritime security, marine pollution response and maritime search & rescue priorities for the Indian Ocean Region (IOR).
• Genesis: Formed in 2011 as a trilateral maritime security grouping of India, Sri Lanka and the Maldives. Later joined by Mauritius. 
  • It was  re-branding as the CSC in 2020. 

• Seychelles is an observer member.

Supreme Court upholds divorced Muslim women’s right to maintenance under Section 125 Code of Criminal Procedure (CrPC), 1973, against her former husband.

• It affirms that a parallel remedy under a secular law cannot be foreclosed by existing personal laws.
• Currently, the maintenance claim is governed under the Muslim Women (Protection of Rights on Divorce) Act, 1986.

 About Section 125 CrPC

• It is the law that governs maintenance for destitute wives, children, and parents.
• Under it, magistrate may order a person has to pay monthly allowance for the maintenance of his wife in case of divorce. 

Note:  CrPC has been replaced by the Bharatiya Nagarik Suraksha Sanhita (BNSS)

Recently, MRA for organic products between India and Taiwan has been implemented. 

About MRA for Organic products

• It is a landmark achievement as it is the first bilateral agreement for organic products.
• Implementation agencies from India: Agricultural and Processed Food Products Export Development Authority (APEDA)
• Under it, products produced and handled organically in conformity with the National Programme for Organic Production (NPOP) are allowed for sale in Taiwan. 
  • NPOP provides an institutional framework for Accreditation of certification bodies and certification of organic products.

• Significance: Promotes export of major Indian organic products such as Rice, Processed Food, Green/Black etc. 

The MeDevIS platform is recently launched by the World Health Organization (WHO).

About MeDevIS

• First global open access clearing house for information on medical devices.
• Replaces paper-based literature search across multiple publications with non-standard device names which can add to the complexity.
• MedevIS also aims to help make the naming of medical devices simpler.
• MeDevIS references: It has two international naming systems for medical devices
  • European Medical Device Nomenclature (EMDN):  Mostly used in European countries 
  • Global Medical Device Nomenclature (GMDN): Used in Australia, Canada,  USA and other member countries. 

According to the FishMIP, global projections of exploitable fish biomass show a more than 10% decline.

About FishMIP initiative 

• Genesis: Fisheries and Marine Ecosystem Model Intercomparison Project was launched in 2013. 
• Global Network: It is an international network of more than 100 marine ecosystem modellers and researchers around the world.
• Relations with UN: It is working with FAO to understand the long-term impacts of climate change on marine ecosystems and fisheries through a set of state-of-the-art numerical models
• FishMIP2.0: Established in 2024 to increase the reliability of modelling projections. 

An exotic host-specific beetle named Cyrtobagus salvinia (imported from Brazil) has successfully eradicated the invasive weed Salvinia molesta from Sarani reservoir (Satpura dam) in Betul district, Madhya Pradesh. 

• This reserve is located on the Tawa River (a tributary of the Narmada River).

Salvinia molesta

• A free-floating aquatic fern
• Native to Brazil.
• Commonly known as “Water Fern” or ‘Chinese Jhalaar’
• Ecology of Kerala,  Odisha, Uttarakhand and Maharashtra are also adversely affected by it.