In this book we have discussed human rights in Bangladesh. Human rights are fundamental rights in a democratic country and every nation of the world must be active for the human rights of all the citizens. In Bangladesh the violation of human rights are higher in all spheres....

The book discusses the rights of the children and violation of their rights. Bangladesh is a densely populated country with populations about 160 millions. By nature the children are human beings who need moldings to become adults through learning and life experiences....

Modern voting system came from French philosophers Marquis de Condorcet (1743-1794) and Jeans-Charles Borda (1733-1799). Voting system is directly involved with economics, political science and social science....

The lease is a contract between the owner and the user of assets for a certain period during which the second party uses an asset in exchange of making periodic rental payments to the first party without purchasing it. Bangladesh is a small but densely populated country in the South Asia and the people of it mainly depend on agriculture....

Human capital is an important asset of a country for the economic development. Due to air pollution human capital cannot be utilized properly and net national product and gross domestic product of a country decreases. Green Accounting contains a beneficial economic model where government pursues optimal economic policies....

This book discusses the global greenhouse gas emissions which cause the global warming in the atmosphere. For the increase of global warming the ice in two poles, Himalayas and Antarctica are melting, as a result the ocean levels are raising....

Due to global economic crisis optimization and social welfare become an essential part of the economy and business. Every firm wants output maximization, cost minimization, utility maximization and social welfare....

The purpose of this research entitled ‘Singularity Theorems in General Relativity’ is to describe elaborately some basic results and applications of global aspects in gravitation and cosmology. It deals with homogeneous, inhomogeneous, isotropic and anisotropic cosmologies and singularities therein....

Green marketing is the marketing of products which are considered not to be harmful for environment. In the 21st century the world is facing a severe threat of sustainability due to economic crisis, energy crisis, environment pollution, and greenhouse gas emissions which cause global warming....

At the end of the 20th century and in the beginning of the 21st century there is an enormous change in global economy. At the same time with competitive economy the industrialized countries emit greenhouse gases which cause global climate change....