Science

There are many branches in medicine. Here are some of them. Anatomy: This is the study of the physical structure of the body. Biochemistry: A biochemist studies chemical components and how they affect the body. Biomechanics: This focuses on the structure of biological systems in the body and how they work, using a mechanical approach. … Read more

Gravitational Lensing is a natural phenomenon that magnifies light around galaxies.  The phenomenon occurs when a huge amount of matter, such as a massive galaxy or cluster of galaxies, creates a gravitational field that distorts and magnifies the light from objects behind it, but in the same line of sight. This makes dim, faraway objects … Read more

What is catalytic converter? What is its significance. Ans:       Catalytic converters, having expensive metals namely platinum palladium and rhodium as the catalysts, are fitted into automobiles for reducing emission of poisonous gases. As the exhaust passes through the catalytic converter, unburnt hydrocarbons are converted into carbon dioxide and water, and carbon monoxide and nitric oxide … Read more

FASTag are stickers affixed to the windscreen of Vehicles. They use RFID technology to collect toll from the traffic. The tags are linked to ban account and they are charged or top up. The amount is detected directly from the account. According to NHAI, these Tags will ensure seamless travel of traffic and will also … Read more

Adaptive immunity develops when innate immunity is ineffective in eliminating infectious agents and the infection is established. The primary functions of the adaptive immune response are the recognition of specific “non-self” antigens in the presence of “self” antigens; the generation of pathogen-specific immunologic effector pathways that eliminate specific pathogens or pathogen-infected cells; and the development … Read more

Neutrinos are the elementary particles found in the universe, which have no charge and have very little mass. They are electrically neutral and have weak interactive force. They are generally formed in the nuclear core of the sun. Radio active decay is also one of the source of neutrinos. They have the unique property of … Read more

India’s AIDS Control Programme is globally acclaimed as a success story. The National AIDS Control Programme (NACP), launched in 1992, is being implemented as a comprehensive programme for prevention and control of HIV/AIDS in India. Over time, the focus has shifted from raising awareness to behavior change, from a national response to a more decentralized response … Read more

. Metagenomics is the study of a collection of genetic material (genomes) from a mixed community of organisms. Metagenomics usually refers to the study of microbial communities. “Metagenomics” is the two words “meta” and “genomics”. So genomics is obtaining the DNA sequence, but meta implies that we’re doing it of many organisms together. And metagenomics … Read more

DNA vaccines are third generation vaccines, made up of small, circular pieces of bacterial DNA, plasmids. These plasmids are genetically engineered to produce specific antigens from a pathogen. The DNA is injected into the cells of the body where the host cell then interprets the DNA and uses it to synthesize the pathogen’s proteins. An … Read more

Chemical weapons are specialised weapons that deliver chemicals that inflict death or injury on humans through chemical actions. They are also called poor man’s bomb because they are relatively cheap and easy to produce. Example of chemical weapons are mustard gas, phosgene, chlorine and nerve agents sarin and VX.           Sarin: The UN had confirmed … Read more