With the cases of new diseases being reported, the demand for antigen for immunization against them has been growing. While there are 27 types of vaccines available worldwide, Nepalese get only ten antigens, exposing them to serious health threats. The…
Polio and Current Status of Polio Eradication in Nepal
What is Polio? Polio (or poliomyelitis) is a disease caused by poliovirus. IT can cause lifelong paralysis (can’t move parts of the body), and it can be deadly. But, the polio vaccine can protect against polio. What are the symptoms…
A Review of Planning in Nepal
Before the dawn of democracy in 1951, the economic backwardness was persisted in Nepal. This was mainly due to historical reasons and also due to a unique difficult geographical setting. This prompted the authorities of Nepal to adopt planned development…
Importance of Economic Planning in Development of A Country like Nepal
The main purpose of economic planning is to keep a proper balance between production and social needs. The demands or social needs are always presented by the people, which are changing with the variations of income, habit and fashion of…
Ampere’s Circuital Law
Ampere’s circuital law was discovered by André-Marie Ampere in the year 1826 A.D. This law states that, “The line integral of magnetic field B along any closed path in free space is equal to the vacuum permeability (μo) times the…
Halo-alkanes
Halo-alkanes are one of the most widely used and important hydrocarbons. When one or more hydrogen atoms of hydrocarbon are replaced by halogen, then the hydrocarbon is called halo-alkane. It is represented by the general formula R-X, where R is…
Different Grades of Purity of Alcohol
Alcohols are one of the widely used organic compounds. They are the organic compounds which contain hydroxyl (-OH) group as their functional groups. In other words, alcohols can be defined as the hydroxyl derivative of aliphatic hydrocarbons. Alcohols are represented…
Motion of An Electron in Electric Field
Let us consider that, an electron of mass ‘m’ moves with initial horizontal velocity ‘vx‘. While the electron enters the electric field between the parallel plates, it is attracted towards the upper positive plate. The electrostatic force with which electron…
Indicators and Titration Curves
Indicators are the chemical substances which are used to determine the end points of titrations. Methyl orange, phenolphthalein, starch solution, erichrome black-T are some examples of indicators. Indicators are used in acid-base titration and have different colours in acidic and…
Moving Coil Galvanometer
Moving coil galvanometer is a device which is used to detect and measure small electric currents present in an electric circuit. Principle It is based on the principle that, “When a current carrying coil is placed in magnetic field, it…
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