Science & Technology Current Affairs MCQs

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India has signed an agreement with Russia to acquire the Klub-S missile system for its submarine fleet. It is developed by Russia defence company NPO Novator. The Klub missile, also known as Kalibr, entered service in 1994. The Klub-S missile has a 400 kg warhead and can strike targets up to 300 km away, including surface ships, submarines, and land targets. It includes a fire control system, vertical launcher unit, and ammunition. It is known for its effectiveness in combat, it can reach supersonic speeds in the terminal phase, making interception difficult. The missile cruises at 10-15 meters, minimizing enemy defense response time.

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Hyderabad-based biotech company, Biovet has received Central Drug Standards Control Organization (CDSCO) approval for its Lumpy Skin Disease (LSD) vaccine, Biolumpivaxin, for dairy cattle and buffaloes. Lumpy Skin Disease (LSD) is an infectious viral disease caused by the lumpy skin disease virus (LSDV), part of the poxviridae family. LSD primarily affects cattle and, to a lesser extent, buffalo, with higher morbidity in cattle. The disease leads to reduced milk production, sterility in bulls, and damage to hides. It spreads through blood-feeding insects and contaminated water or fodder. LSD is not zoonotic, so humans cannot get infected by the virus.

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IIT-Madras and ISRO developed and successfully booted the SHAKTI-based semiconductor chip, IRIS (Indigenous RISCV Controller for Space Applications). SHAKTI systems use RISC-V (reduced instruction set computer five), an open-source Instruction Set Architecture (ISA), for custom processor design. The project is backed by the Ministry of Electronics and IT under the Digital India RISC-V (DIRV) initiative. The goal is to promote indigenous microprocessor-based products with top security and transparency. IRIS is a significant step toward India’s self-reliance in semiconductor technology, especially for space applications.

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IIT Guwahati researchers have developed a water-repellent, conductive textile that converts electricity and sunlight into heat to keep wearers warm in extreme cold. It helps prevent blood clotting, breathing issues, and weak immunity caused by prolonged cold exposure. The textile is made by spraying ultra-thin silver nanowires onto cotton fabric, making it lightweight, flexible, and durable. A lotus leaf-inspired coating makes it waterproof, stain-resistant, and oxidation-proof, ensuring long-lasting performance. It maintains 40°C-60°C for 10+ hours using a battery or solar energy.

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Indian National Space Promotion and Authorization Centre (IN-SPACe) launched the Technology Advancement Fund (TAF) to boost private sector innovation in space. IN-SPACe is an autonomous agency under the Department of Space (DOS) that promotes private participation. TAF aims to fund cutting-edge technologies and commercialization in the space sector.

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IIIT-Delhi researchers developed AI-powered tools for tracking antibiotic resistance in real time. The project is a collaboration between IIIT-Delhi, CHRI-PATH, Tata 1mg, and ICMR scientists. The AI tool, AMRSense, analyzes hospital data to provide early insights on antimicrobial resistance. It operates at global, national, and hospital levels to aid quick action. The research established links between antibiotic resistance patterns in community and hospital infections.

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Scientists at Wuhan Institute of Virology, China, discovered a new bat coronavirus, HKU5-CoV-2. The virus shares similarities with SARS-CoV-2, the cause of COVID-19. HKU5-CoV-2 can bind to human ACE2 receptors, but its ability to spread among humans is uncertain. The virus belongs to the merbecovirus subgenus, related to Middle East respiratory syndrome (MERS), but its severity in humans remains unknown.

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The Supreme Court directed all States to address concerns on stockouts, procurement transparency, and drug quality of Anti-Retroviral Therapy (ART) drugs for People Living with HIV/AIDS (PLHIV). ART is a combination of medications that treat human immunodeficiency virus (HIV) by reducing its levels in the body. HIV destroys CD4 cells (also called helper T-cells), weakening the immune system and increasing infection risk. ART cannot cure HIV but helps maintain a healthy immune system by preventing the virus from multiplying. A combination of two to four ART drugs improves effectiveness and reduces resistance. If viral load is low enough, HIV becomes undetectable in blood tests.

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IIT Madras researchers developed a framework to enhance protection of critical infrastructure from ballistic missile threats. The framework helps designers improve the ballistic resistance of reinforced concrete (RC) panels. Findings were published in the journal Reliability Engineering & System Safety. Researchers used computational simulations to study missile impacts on RC. RC is used in military bunkers, nuclear power buildings, bridges, and runways.

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A global survey found that 56.6% of Indians aged 50+ know little about shingles, though over 90% have the virus. Shingles (herpes zoster) is a viral infection causing a painful rash or blisters, often in a band-like pattern. It is caused by the varicella-zoster virus, which also causes chickenpox and can reactivate in adulthood. Shingles is not contagious, but the virus can spread to someone who never had chickenpox. Symptoms include pain, itching, fever, and fatigue. The Shingrix vaccine helps prevent shingles, and antiviral drugs can reduce its severity.