Science & Technology Current Affairs MCQs

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Scientists at the World Health Organisation (WHO) have endorsed a new class of medicines called Glucagon-Like Peptide (GLP)-1 receptor agonists. These drugs mimic the GLP-1 hormone, which regulates appetite, blood sugar, and lipid metabolism, helping manage obesity. GLP-1 receptor agonists have therapeutic potential for treating diseases like diabetes, cardiovascular disorders, and neurodegenerative diseases. Most GLP-1 agonists are injectable medications, such as semaglutide and tirzepatide, with transformative potential. GLP-1 is a hormone released by the intestines after food intake, playing a key role in regulating blood glucose and metabolism.

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Google launched the quantum processor ‘Willow,’ advancing quantum computing to solve practical problems. Willow has 105 physical qubits and operates at near absolute zero temperatures (-273.15°C). It features better error correction and faster performance than other quantum computers. The coherence time of Willow’s qubits is around 100 microseconds, improved by error correction. Willow’s architecture enables lower error rates with more qubits. It outperformed classical computers in testing, completing a Random Circuit Sampling task in minutes.

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Scrub typhus cases have been reported in several districts including Chennai, Tiruvallur, and Vellore, with 5,000 cases in 2024. The disease is caused by the bacteria Orientia tsutsugamushi and transmitted through infected mites. Symptoms include fever, headache, body ache, and sometimes a rash. Severe cases can lead to respiratory distress, organ failure, and death. Factors like vector abundance, climate, farming, and sanitation impact its spread. The Elisa test is used for detection. Control measures include cold fogging, clearing bushes, and reducing rodent populations.

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Researchers from IIT Guwahati and Bose Institute, Kolkata, created an advanced injectable hydrogel for localized cancer treatment. The hydrogel acts as a stable reservoir, releasing anti-cancer drugs in a controlled way. It minimizes harm to healthy cells while targeting cancer effectively. The breakthrough is expected to revolutionize breast cancer therapy. The hydrogel is made from protein-based ultra-short peptides, stable at injection sites, and insoluble in body fluids. The peptides are biocompatible and biodegradable, ensuring safety and effectiveness.

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Bangalore Medical College and Research Institute (BMCRI) has been selected by Indian Council of Medical Research (ICMR) to host South India’s first Infectious Disease Research and Diagnostic Laboratory (IRDL). The lab will focus on research and diagnostics for bacterial, fungal, and parasitic infections, enabling quicker and more accurate disease management. This is part of a nationwide initiative to enhance medical research infrastructure in India. The lab will also study antibiotic resistance, fungal infections, and tropical diseases.

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India becomes the fourth country to successfully achieve Space Docking Experiment (SpaDeX), after the US, Russia, and China. The technology allows two satellites to dock in space, enabling the assembly of larger modules and overcoming rocket payload limits. This technology is crucial for long-duration missions, Mars exploration, lunar sample return, and the planned Bharatiya Antariksh Station for resupply and crewed missions.

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Venus, Saturn, Jupiter, and Mars formed a rare arc in the night sky, called a ‘planet parade.’ A planet parade occurs when multiple planets are visible in the night sky simultaneously. This phenomenon, also known as a conjunction, makes planets appear close together or even touching, though it is a perspective illusion. Planets have unique motions and move at different rates, making simultaneous visibility uncommon. Such alignments involving four or more planets are rare and do not happen annually, as highlighted by NASA.

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IIT-Madras has launched a zero-waste bioplastics initiative supported by the Ministry of Chemicals and Fertilisers. The initiative aims to develop biodegradable, microplastic-free, and cost-effective alternatives to conventional plastics. Third-generation bioplastics use agricultural residues, algae, and waste materials, avoiding food security concerns linked to earlier food-based bioplastics. These bioplastics fully decompose, leaving no harmful particles behind, reducing the environmental footprint. The centre is also exploring bioplastics for food packaging and medical textiles, including biodegradable implants from agricultural waste.

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A new research paper identifies Chronic Pulmonary Aspergillosis (CPA), a life-threatening fungal infection, mostly in tuberculosis survivors in Assam’s tea plantations. Chronic Pulmonary Aspergillosis (CPA) is caused by Aspergillus fumigatus, a fungus that infects individuals with weak immune systems. It commonly affects people with pre-existing lung damage, like from TB, and shares symptoms with TB. Symptoms include coughing up blood, weight loss, fatigue, shortness of breath, and wheezing. Treatment involves antifungal medication and sometimes surgery. Aspergillus fungi are widely found in soil, decaying plants, and grains, but only a few species pose a threat to humans.

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IIT-Madras researchers have extracted silicon carbide (SiC) from simulated moon soil, aiding future lunar habitat construction. Silicon carbide (SiC), also called carborundum, is a synthetic crystalline compound of silicon and carbon. It is extremely hard, has high thermal conductivity, and offers excellent resistance to wear, oxidation, and chemical reactions.