Biopolymers; Definition, Classification and Applications

Constipation: definition and classification.

Tannins: classification and definition.

The name ‘tannin’ is derived from the French ‘tanin’ (tanning substance) and is used for a range of natural polyphenols. Since ancient times it is known that certain organic substances have tanning properties and are able to tan animal skins to form leather. Prehistoric tribes already knew about the tanning of protective animal hides with brain material and the fat of the killed animals. Howeve...

Subjective Halitosis: Definition and Classification.

Subjective halitosis is not confirmed by halitometer or third party individuals despite the patient insistently complaints malodor. This condition is named imaginary, delusional, pseudo, non-genuine, psychogenic, psychosomatic halitosis, halitophobia, body odor psychosis, depression, hypochondriasis, olfactory reference syndrome, chronic olfactory paranoid, syndrome, olfactory obsession, obsess...

Cardiorenal syndromes: definition and classification.

To include the vast array of interrelated derangements, and to stress the bidirectional nature of the heart-kidney interactions, the classification of the cardiorenal syndrome (CRS) includes today five subtypes whose etymology reflects the primary and secondary pathology, the time-frame and simultaneous cardiac and renal codysfunction secondary to systemic disease. The CRS can be generally defi...

Dihedral-Based Segment Identification and Classification of Biopolymers I: Proteins

A new structure classification scheme for biopolymers is introduced, which is solely based on main-chain dihedral angles. It is shown that by dividing a biopolymer into segments containing two central residues, a local classification can be performed. The method is referred to as DISICL, short for Dihedral-based Segment Identification and Classification. Compared to other popular secondary stru...