1 Before you agree to the freezing and storage of your sperm, your clinician will explain the process involved. 2  You will be screened for infectious diseases, including HIV and hepatitis B and C. 3  You will need to give written consent for your sperm to be stored. 4  At the clinic, you produce a fresh sample of sperm.toring sperm is the only established way to preserve male fertility. Studies have shown that sperm can be retrieved and stored from patients as young as 13 years old, and storing sperm for a long time should not alter its ability to fertilise an egg.
Diamond is a form of carbon in which each carbon atom is joined to four other carbon atoms, forming a giant covalent structure. As a result, diamond is very hard and has a high melting point.It does not conduct electricity.iamond is a form of carbon in which each carbon atom is joined to four other carbon atoms, forming a giant covalent structure. As a result, diamond is very hard and has a high melting point.
Technically, a diamond is an allotrope, or a form, of the element carbon (a diamond is actually carbon in its most concentrated form). Within a diamond, the carbon atoms are arranged in a variation of the face-centered cubic crystal structure called a diamond lattice. This arrangement of carbon atoms essentially means that the diamond expands outward at the same rate in all directions during its initial growth. Because of its structure, which is extremely rigid, a diamond can be contaminated by very few impurities, such as the elements boron or nitrogen. Combined with its tendency to be transparent, this results in the colorless, clear appearance of most diamonds.