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1. Biology a collection of strands of specialized tissue such as nerve fibres
2. Botany short for vascular bundle
3. Textiles a measure of yarn or cloth; 60 000 yards of linen yarn; 5 or 10 pounds of cotton hanks
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



in mathematics, a two-parameter family of curves in the plane or in space that are linear functions of the parameters. Suppose F1, F2, and F3 are functions of two variables and none of the functions is a linear combination of the other two. The family of curves in the plane that are determined by the equation

(*) λ1F1 + λ2F2 + λ3F3 = 0

for all possible values of the parameters λ1, λ2, and λ3 (except for the case λ1 = 0, λ2 = 0, and λ3 = 0) constitutes a bundle. Equation (*) is in fact a function of two parameters—that is, of the two ratios λ1: λ2: λ3. In addition, it is immediately apparent that the parameters occur in this equation linearly. The equation of a bundle of surfaces in space is formed analogously. The three equations F1 = 0, F2 = 0, and F3 = 0 yield three elements of the bundle (three curves of three surfaces), which determine the entire bundle.

Bundles are usually considered whose elements are similar in certain respects; examples are a bundle of circles and a bundle of planes. We sometimes also speak of a bundle of lines in space; although the bundle is considered in space, its elements are curves rather than surfaces. Nevertheless, this case can be reduced to the case of a bundle of planes, since the pairwise intersections of elements of a bundle of planes determine a set of lines. In projective geometry, a bundle is understood to mean both sets—lines and planes—at once.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.


A triple (E, p, B), where E and B are topological spaces and p is a continuous map of E onto B ; intuitively E is the collection of inverse images under p of points from B glued together by the topology of X.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.


(1) To sell hardware and software as a combined product or to combine several software packages for sale as a single unit. Contrast with unbundle. See bundled software and bundling.

(2) A collection of files that are treated as one. See APP file.
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References in periodicals archive ?
One thing is clear, however: If implementation of standardized ventilator bundles is going to be incorporated in pay-for-performance, as seems highly likely, then those bundles need to be revised and made more relevant to trauma/surgical patients so hospitals and surgeons aren't unfairly penalized, Dr.
Numerous medical centers have reported success in sustaining extremely low VAP rates since introducing ventilator bundles. But these reports emanate from medical ICUs, not trauma/surgical ICUs, according to Dr.
Current best practices for patients at risk of VAP can be established by conducting systematic literature reviews on the ventilator bundle and factors related to VAP and by communicating evidence-based findings through education sessions.
Current Evidence About the Ventilator Bundle and VAP
We conducted a clinical education project to assess nurses' knowledge about use of the ventilator bundle to prevent VAP and the related practice patterns in a coronary care unit (CCU) and surgical ICU (SICU) at a large hospital based in a medical center in a major metropolitan city.
A 10-item test was constructed to examine nurses' knowledge about VAP and its prevention by using interventions that are based on the ventilator bundle. The questions on the 10-item test contained information from the PowerPoint presentation.
The changes in test scores indicate that the 30-minute education session increased the knowledge gained by the nurses about VAP and the ventilator bundle (independent t test, P < .001).
* Lastly, a learning organization should select one or two key clinical processes, such as the ventilator bundle or community acquired pneumonia, and deliberately aim for the [10.sup.-2] articulated goal using the lessons amplified in the four themes.