Index

An index is an indirect shortcut derived from and pointing into a greater volume of values, data, information or knowledge. Index may refer to:

Business

Publishing

Database index

A database index is a data structure that improves the speed of data retrieval operations on a database table at the cost of additional writes and storage space to maintain the index data structure. Indexes are used to quickly locate data without having to search every row in a database table every time a database table is accessed. Indexes can be created using one or more columns of a database table, providing the basis for both rapid random lookups and efficient access of ordered records.

An index is a copy of select columns of data from a table that can be searched very efficiently that also includes a low-level disk block address or direct link to the complete row of data it was copied from. Some databases extend the power of indexing by letting developers create indices on functions or expressions. For example, an index could be created on upper(last_name), which would only store the upper case versions of the last_name field in the index. Another option sometimes supported is the use of partial indices, where index entries are created only for those records that satisfy some conditional expression. A further aspect of flexibility is to permit indexing on user-defined functions, as well as expressions formed from an assortment of built-in functions.

Index (statistics)

In statistics and research design, an index is a composite statistic – a measure of changes in a representative group of individual data points, or in other words, a compound measure that aggregates multiple indicators. Indexes summarize and rank specific observations.

Much data in the field of social sciences is represented in various indices such as Gender Gap Index, Human Development Index or the Dow Jones Industrial Average.

Item in indexes are usually weighted equally, unless there are some reasons against it (for example, if two items reflect essentially the same aspect of a variable, they could have a weight of 0.5 each).

Constructing the items involves four steps. First, items should be selected based on their face validity, unidimensionality, the degree of specificity in which a dimension is to be measured, and their amount of variance. Items should be empirically related to one another, which leads to the second step of examining their multivariate relationships. Third, indexes scores are designed, which involves determining their score ranges and weights for the items. Finally, indexes should be validateds, which involves testing whether they can predict indicators related to the measured variable not used in their construction.

Woman

A woman is a female human. The term woman is usually reserved for an adult, with the term girl being the usual term for a female child or adolescent. The term woman is also sometimes used to identify a female human, regardless of age, as in phrases such as "women's rights". "Woman" may also refer to a person's gender identity. Women with typical genetic development are usually capable of giving birth from puberty until menopause. In the context of gender identity, transgender people who are biologically determined to be male and identify as women cannot give birth. Some intersex people who identify as women cannot give birth due to either sterility or inheriting one or more Y chromosomes. In extremely rare cases, people who have Swyer syndrome can give birth with medical assistance. Throughout history women have assumed or been assigned various social roles.

Etymology

The spelling of woman in English has progressed over the past millennium from wīfmann to wīmmann to wumman, and finally, the modern spelling woman. In Old English, wīfmann meant "female human", whereas wēr meant "male human". Mann or monn had a gender-neutral meaning of "human", corresponding to Modern English "person" or "someone"; however, subsequent to the Norman Conquest, man began to be used more in reference to "male human", and by the late 13th century had begun to eclipse usage of the older term wēr. The medial labial consonants f and m in wīfmann coalesced into the modern form "woman", while the initial element, which meant "female", underwent semantic narrowing to the sense of a married woman ("wife"). It is a popular misconception that the term "woman" is etymologically connected with "womb", which is from a separate Old English word, wambe meaning "stomach" (of male or female; modern German retains the colloquial term "Wampe" from Middle High German for "potbelly"). Nevertheless, such a false derivation of "woman" has appeared in print.

Women (novel)

Women is a 1978 novel written by Charles Bukowski, starring his semi-autobiographical character Henry Chinaski. In contrast to Factotum, Post Office and Ham on Rye, Women is centered on Chinaski's later life, as a celebrated poet and writer, not as a dead-end lowlife. It does, however, feature the same constant carousel of women with whom Chinaski only finds temporary fulfillment.

Plot

Women focuses on the many dissatisfactions Chinaski faced with each new woman he encountered. One of the women featured in the book is a character named Lydia Vance; she is based on Bukowski's one-time girlfriend, the sculptress and sometime poet Linda King. Another central female character in the book is named "Tanya" who is described as a 'tiny girl-child' and Chinaski's pen-pal. They have a weekend tryst. The real-life counterpart to this character wrote a self-published chapbook about the affair entitled "Blowing My Hero" under the pseudonym Amber O'Neil. The washed-up folksinger "Dinky Summers" is based on Bob Lind.

Women (disambiguation)

Women are adult female humans.

Women may also refer to:

Books

Film and television

Music