Electromagnetic waves, their types and characteristics

Electromagnetic Wave Electromagnetic Wave are waves composed of undulating electrical fields and magnetic fields. The different kinds of electromagnetic waves, such as light and radio waves, form the electromagnetic spectrum. All electromagnetic waves have the same speed in a vacuum, a speed expressed by the letter c (the speed of light) and equal to about … Read more

United Nations and its specialized agencies

  The United Nations (UN) is an intergovernmental organization established on 24 October 1945 to promote international cooperation. It was founded to replace the League of Nations following World War II and to prevent another conflict. When it was founded, the UN had 51 Member States; there are now 193. Most nations are members of the UN and send diplomats to the headquarters to hold … Read more

Development and environment

Environmental influences are important both at the prenatal and postnatal stages of human development. At the prenatal stage, when a fetus is in the mother’s womb,  internal or external harmful agents, such as certain legal or illegal drugs, alcohol, lead and pollutants can harm the unborn baby’s development. The mother’s nutrition, diseases and emotional stress … Read more

Global Environmental Issues like Green House Effect, Green House Gases and their mitigation.

The Greenhouse Effect The greenhouse effect is a natural phenomenon that insulates the Earth . Incoming solar radiations are absorbed and reemitted back from the Earth’s surface as infrared energy, greenhouse gases (GHGs) in the atmosphere prevent some of this heat from escaping into space, instead reflecting the energy back to further warm the surface. Human … Read more

Data, Data processing, business data processing, data storage, file management system and data base management systems.

  Data, Data Processing and Database management System   Data processing and data management are critical components of business organizations.   DATA PROCESSING Data processing refers to the process of performing specific operations on a set of data or a database. A database is an organized collection of facts and information, such as records on … Read more

Classifications, generations, applications and limitations of digital computers

  Computer Classification: By Size and Power Computers differ based on their data processing abilities. They are classified according to purpose, data handling and functionality. According to functionality, computers are classified as: Analog Computer: A computer that represents numbers by some continuously variable physical quantity, whose variations mimic the properties of some system being modeled. Personal computer: A personal computeris a computer small and low … Read more

Biotechnology: Introduction of Biotechnology, its potential to improve human life and national economy through agriculture (biofertilizers, biopesticides, biofuels, genetically modified crops), industrial development and employment generation. Areas of application -pharmaceuticals, human healthcare, food technology, energy generation etc.

Biotechnology is defined as the industrial application of living organisms and their biological processes such as biochemistry, microbiology, and genetic engineering, in order to make best use of the microorganisms for the benefit of mankind. Modern biotechnology provides breakthrough products and technologies to combat debilitating and rare diseases, reduce our environmental footprint, feed the hungry, … Read more

PAPER – IV General Studies 3:Science and Technology,Environment & Ecology

  Section-I, Role and Impact of Science and Technology in Development of Indian, Information Technology In Public Domain 1. Basics of Science and Technology. Classical and emerging areas of science and Technology (S&T)- Value Addition by Science & Technology- Current Science & Technology developments in India and Importance of Science & Technology as an engine … Read more

Development Administration: Institutions; Policy Initiatives, Strategies, Problems and Challenges.

Development is the end result of Public Administration. The paradigm of development is depending on the nature of government and its policies. It may be ideologically driven or ethically motivated. It strips off the orthodox structuralism of public administration as put forward by classical Administrative theorists and attempts to cater the emerging need of a … Read more

Public Administration and management: Meaning, nature and significance

The English word  administer‘ is derived from a combination of two Latin words and ?ministrate‘ meaning ?to serve or manage‘. Literally, the term means management the affairs of public or private. Administration refers to mobilisation of resources – human and material- to achieve pre-set of objectives. Administration is thus an activity undertaken in pursuit of … Read more