Science

The term RNA interference (RNAi) was coined to describe a cellular mechanism that uses the gene’s own DNA sequence of the gene to turn it off, a process that researchers call silencing. In a wide variety of organisms, including animals, plants, and fungi, RNAi is triggered by double-stranded RNA (dsRNA). During RNAi, long dsRNA is … Read more

It is a pollution control system for the reduction of Sox (SO2, SO3), HCl and heavy metals like mercury. It is a dry process in which a sorbent (a material used to absorb or adsorb liquids or gases) is injected into the coal-fired boiler where it interacts with various like SOx, HCl and the resultant … Read more

The principle used in the pressure cooker is that the boiling point of water increases with an increase in pressure. Hence option (a) is the correct answer. Pressure cooker has a confined space sealed from all side (except valve which is used to release excess pressure). When heat is supplied to the cooker it first … Read more

Carbon dots are fluorescent nanoparticles that show similar physical and optical properties to the well-known semiconductor quantum dots. However, the building block of carbon dots is made primarily out of carbon, with some doped heteroatoms, creating a nanoparticle that is more biocompatible and less toxic compared with the quantum dots that commonly contain heavy metals. … Read more

Agent Smith is a mobile malware which has infected approximately 25 million smartphones across the world out of which 15 million devices are estimated to be from India. It accesses the smartphone’s resources to show fraudulent ads for financial gains, however, it could be easily used for much more intrusive and harmful purposes like theft … Read more

Antibiotic resistance is accelerated by the misuse and overuse of antibiotics, as well as poor infection prevention and control. Steps can be taken at all levels of society to reduce the impact and limit the spread of resistance. To prevent and control the spread of antibiotic resistance, individuals can: Only use antibiotics when prescribed by … Read more

Carbon nanotubes (CNTs) are cylindrical molecules that consist of rolled-up sheets of single-layer carbon atoms (graphene). They can be single-walled (SWCNT) with a diameter of less than 1 nanometer (nm) or multi-walled (MWCNT), consisting of several concentrically interlinked nanotubes, with diameters reaching more than 100 nm. Their length can reach several micrometers or even millimeters. … Read more

The Central Drugs Standard Control Organisation (CDSCO) under Directorate General of Health Services, Ministry of Health & Family Welfare, Government of India is the National Regulatory Authority (NRA) of India. Under the Drugs and Cosmetics Act, CDSCO is responsible for approval of New Drugs, Conduct of Clinical Trials, laying down the standards for Drugs, control … Read more

Stem cells are special human cells that have the ability to develop into many different cell types, from muscle cells to brain cells. In some cases, they also have the ability to repair damaged tissues.               Stem cells differ from other kinds of cells in the body. Self-renewal: They can divide and renew themselves for … Read more

In zigzag kilns, bricks are arranged to allow hot air to travel in a zigzag path. The length of the zigzag air path is about three times that of a straight line, and this improves the heat transfer from the flue gases to the bricks, making the entire operation more efficient. In addition, better mixing … Read more