Introduction to A. C. Polarography

Polarography in Molten Salts

TYPES OF MELTS From the practical viewpoint, melts may be classified according to melting points which may limit the available techniques. The lowest melting, with working temperatures up to 250°, are typified by the LiNO3—NaNO3— KNO3 eutectic, NaNO3—KNO3 eutectic, LiClO4, and ammonium formate. With these solvents it is possible to use the dropping mercury electrode, or hanging mercury drop ele...

Appendix C : Introduction to analysis

Definition 1 (Set) A Set is a collection of distinct elements. Those elements are also referred to as the Members of the Set. No meaning is known to the order of elements in a Set, nor to repetition of elements. We notate a ∈ A to mean than a is an element of the set A. If every member of a Set A is also a member of a Set B, A is said to be Contained in B, or a Subset of B, which is notated A ⊂...

An Introduction to Sociolinguistics

Introduction to circular data

In many diverse scientific fields, the measurements are directions. For instance, a biologist may be measuring the direction of flight of a bird or the orientation of an animal. A series of such observations is called ”directional data”. Since a direction has no magnitude, these can be conveniently represented as points on the circumference of a unit circle centered at the origin or as unit ...

Introduction to Ethics

  The issues involved in this article are mainly concentrated on the origins of ethics or Moral ethics as an indepent science It has been said that this area of science was founded by Greek Philosophers after a great crisis and debates between such thinkers as Socrates, Plato and Aristotle on one side and  study of other cuitures and moral traditions, especially the Chinese and Hindu tradition...