I n d i v i d u a l F i e l d D e s c r i p t i o n s
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Descriptors are controlled and noncontrolled words or phrases added to enrich or
clarify the title. Search the TI and DE fields together, since BIOSIS does not duplicate
words from the Title in the Descriptors field. Include the Abstract for comprehensive
retrieval of every reference that mentions your subject, even if only peripherally.
Search Example:
glomerular filtration rate in de
Concept Codes are five-digit codes representing broad subject
areas of the life sciences, which allow you to search a topic without entering a long list
of synonyms. They are assigned at the Major (MJCC) and Minor (MNCC) levels. The
Major Concept Codes represent subjects of significant emphasis in the document,
while the Minor Concept Codes represent peripheral subjects.
While both MJCC and MNCC are searchable fields, they are displayed in the CC field.
Each Concept Code is followed by its text equivalent. The Major Concept Codes and
their corresponding text equivalents are listed first, followed by the Minor Concept
Codes and their text equivalents. Use the field abbreviation CC to search both the
Major and Minor fields simultaneously. Use the field abbreviation MJCC to search
only the Major Concept Codes field.
Search Examples:
cc15506
cc17008 in mjcc
endocrine-system-pancreas in cc
Biosystematic Codes are five-digit codes representing broad taxonomic
categories of organisms discussed in the document. Each Biosystematic Code is
prefaced by the letters "BC" and is followed by a text equivalent called a Biosystematic
Heading. Use either the Biosystematic Code or its corresponding text equivalent as a
search term. Search for new taxa using the word "new" with the code or heading and
restricting to this field.
Search Examples:
bc86215
hominidae in bc
bc85538 new in bc
new arachnida in bc
Super Taxa are common names representing groups of Biosystematic Codes that depict
common organism groups, such as plants or birds. Super Taxa provide faster and easier
searching of groups of organisms.
Search Examples:
plants in st
nonhuman mammals in st
D E D e s c r i p t o r s
S T S u p e r T a x a
C C , M J C C , M N C C C o n c e p t C o d e s
B C B i o s y s t e m a t i c C o d e s
