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192) Using a reference group of birds experimentally infected with West Nile virus (WNV) and a problem group of unknown health status (except that they were WNV-negative and displayed inflammation), both groups were followed over 22 days and tested with a system that analyses blood leucocyte ratios.
* Systems Biology and Ratio-Based, Real-Time Disease Surveillance.
- Most infectious disease surveillance methods are not well fit for early detection. To address such limitation, here we evaluated a ratio- and Systems Biology-based method that does not require prior knowledge on the identity of an infective agent. Using a reference group of birds experimentally infected with West Nile virus (WNV) and a problem group of unknown health status (except that they were WNV-negative and displayed inflammation), both groups were followed over 22 days and tested with a system that analyses blood leucocyte ratios. To test the ability of the method to discriminate small data sets, both the reference group (n = 5) and the problem group (n = 4) were small. The questions of interest were as follows: (i) whether individuals presenting inflammation (disease-positive or D+) can be distinguished from non-inflamed (disease-negative or D-) birds, (ii) whether two or more D+ stages can be detected and (iii) whether sample size influences detection. Within the problem group, the ratio-based method distinguished the following: (i) three (one D- and two D+) data classes; (ii) two (early and late) inflammatory stages; (iii) fast versus regular or slow responders; and (iv) individuals that recovered from those that remained inflamed. Because ratios differed in larger magnitudes (up to 48 times larger) than percentages, it is suggested that data patterns are likely to be recognized when disease surveillance methods are designed to measure inflammation and utilize ratios.
=>制度組織体系的方式, システム, 組織, 整然とした手順, (思想などの)体系, 体制
Overview of noun system
The noun system has 9 senses (first 8 from tagged texts)
1. (43) system -- (instrumentality that combines interrelated interacting artifacts designed to work
as a coherent entity; "he bought a new stereo system"; "the system consists of a motor and a small
computer")
2. (23) system, scheme -- (a group of independent but interrelated elements comprising a unified
whole; "a vast system of production and distribution and consumption keep the country going")
3. (14) system -- ((physical chemistry) a sample of matter in which substances in different phases
are in equilibrium; "in a static system oil cannot be replaced by water on a surface"; "a system
generating hydrogen peroxide")
4. (10) system, system of rules -- (a complex of methods or rules governing behavior; "they have to
operate under a system they oppose"; "that language has a complex system for indicating gender")
5. (8) arrangement, organization, organisation, system -- (an organized structure for arranging or
classifying; "he changed the arrangement of the topics"; "the facts were familiar but it was in the
organization of them that he was original"; "he tried to understand their system of classification")
6. (7) system -- (a group of physiologically or anatomically related organs or parts; "the body has
a system of organs for digestion")
7. (6) system -- (a procedure or process for obtaining an objective; "they had to devise a system
that did not depend on cooperation")
8. (1) system -- (the living body considered as made up of interdependent components forming a
unified whole; "exercise helped him get the alcohol out of his system")
9. organization, organisation, system -- (an ordered manner; orderliness by virtue of being
methodical and well organized; "his compulsive organization was not an endearing quality"; "we can't
do it unless we establish some system around here")
--- WordNet end ---