7- Variable Scope in C++

A scope is a region of the program and broadly speaking there are three places, where variables can be declared −
• Inside a function or a block which is called local variables,
• In the definition of function parameters which is called formal parameters.
• Outside of all functions which is called global variables.
We will learn what is a function and it's parameter in subsequent chapters. Here let us explain what are local and global variables.

Lecture 11 ( Composite Restorations)

Esthetic dentistry has shown much advancement in materials and technology since the last century. Materials which have been used for esthetic restorations are silicate cement, glass ionomer, acrylic resins, composites and fused porcelain. R Bowen, in 1962 developed a polymeric dental restorative material reinforced with silica particles used as fillers. These materials were called ‘composites’. Nowadays, composite resins are considered as an economical and esthetic alternative to other direct and indirect restorative materials...........

Logic Gates

Lecture Three / Logic Gates
1. Set of Gats AND, OR, NOT, XOR, NOR, NAND.
2. The Half-Adder Circuit.
3. The Full-Adder Circuit.
4. The Half-Subtractor Circuit.

5- Variables in C++

A variable is a name which is associated with a value that can be changed. For example when I write int num=20; here variable name is num which is associated with value 20, int is a data type that represents that this variable can hold integer values. We will cover the data types in the next tutorial. In this tutorial, we will discuss about variables.

3 rd Lecture: Blood: Composition, Specific Functions of each Compartment. Plasma and Serum Differences and Separation

Definition of Blood: Blood is a fluid connective tissue that consists of plasma, blood cells and platelets. It circulates throughout our body delivering oxygen and nutrients to various cells and tissues. It makes up 8% of our body weight. An average adult possesses around 5-6 liters of blood.