Life cycle

Life cycle may refer to:

Science and academia

Business

Software development

Biological life cycle

In biology, a life cycle is a series of changes in form that an organism undergoes, returning to the starting state. "The concept is closely related to those of the life history, development and ontogeny, but differs from them in stressing renewal." Transitions of form may involve growth, asexual reproduction, and/or sexual reproduction.

In some organisms, different "generations" of the species succeed each other during the life cycle. For plants and many algae, there are two multicellular stages, and the life cycle is referred to as alternation of generations. The term life history is often used, particularly for organisms such as the red algae which have three multicellular stages (or more), rather than two.

Life cycles that include sexual reproduction involve alternating haploid (n) and diploid (2n) stages, i.e., a change of ploidy is involved. To return from a diploid stage to a haploid stage, meiosis must occur. In regard to changes of ploidy, there are 3 types of cycles:

Life Cycle (Whit Dickey album)

Life Cycle is an album by American jazz drummer Whit Dickey recorded in 2000 and released on the Aum Fidelity label. Dickey leads the Nommonsemble, which includes Rob Brown on alto sax and flute, Mat Maneri on viola and Matthew Shipp on piano.

Reception

In his review for AllMusic, Sam Samuelson states "The Nommonsemble pull together a concise and pleasing recording that for the most part proves itself to be relevant and thought-provoking."

The Penguin Guide to Jazz notes that "They're a highly compatible quartet, four thinkers who prefer the dryer end of free jazz and, while the record isn't exactly exciting, it certainly makes its own space."

The JazzTimes review by Aaron Steinberg says "Though obdurate and knotty on the whole, Life Cycle maintains a calm and spacious core throughout, which is due largely to Dickey's drumming and his sensitive interaction with Shipp."

Track listing

Facelift (automotive)

"Mid-cycle facelifts for cars are usually just cosmetic: a little nip here, a little tuck there, new lights and maybe a couple of different trim pieces to maintain interest in an aging vehicle for an extra couple of years before a full redesign."

An automotive facelift (also known as mid-generational refresh, minor model change or minor model update, life cycle impulse for BMW) comprises changes to a car, truck or bus's styling during its production run — including, to highly variable degree, new sheetmetal, interior design elements or mechanical changes— allowing a carmaker to freshen a model without complete redesign.

A facelift retains the basic styling and platform of the car, with aesthetic alterations, e.g., changes to the front fascia (grille, headlights), taillights, bumpers, instrument panel and center console, and various body or interior trim accessories. Mechanical changes may or may not occur concurrently with the facelift (e.g., changes to the engine, suspension or transmission).