active

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active:

see voicevoice,
grammatical category according to which an action is referred to as done by the subject (active, e.g., men shoot bears) or to the subject (passive, e.g., bears are shot by men). In Latin, voice is a category of inflection like mood or tense.
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active

1. (of a volcano) erupting periodically; not extinct
2. Astronomy (of the sun) exhibiting a large number of sunspots, solar flares, etc., and a marked variation in intensity and frequency of radio emission
3. Commerce
a. producing or being used to produce profit, esp in the form of interest
b. of or denoting stocks or shares that have been actively bought and sold as recorded in the Official List of the London Stock Exchange
4. Electronics
a. containing a source of power
b. capable of amplifying a signal or controlling some function
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

active

(1) Using some form of, or a greater amount of, electronic processing in a device. For example, "active 3D" glasses contain circuits that constantly synchronize with the monitor in contrast to "passive 3D" glasses that perform no processing. Active matrix displays have a transistor for each subpixel in contrast to their passive matrix counterpart, which uses far fewer transistors. See active 3D and active matrix. Contrast with passive.

(2) Physically involved in work or athletic endeavors. For example, Samsung phones designed for rugged activities are branded as Galaxy Active devices. See Galaxy S.
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References in periodicals archive ?
They have subject matter experts who visit the healthcare organization to provide training, review of analytics and reports, and discuss the evidence-based transfusion guidelines. The program is customizable for a hospital's needs--surgery, nursing, or the laboratory.
Based on guidelines for perioperative transfusion and adjuvant therapy published by the American Society of Anesthesiologists in 2006 and the American AABB transfusion guidelines of 2012, erythrocyte infusion was carried out with Hb level < 60-70 g/L and not needed if Hb level exceeded 100 g/L.
Current SA obstetric transfusion guidelines recommend antenatal transfusion for patients with symptomatic anaemia and/or with haemoglobin values <6 g/dL, or emergency caesarean section for patients with haemoglobin values <8 g/dL.
As a result, the trigger point of blood transfusion may be different in the emergency use of the existing transfusion guidelines. The present study was designed to evaluate whether the scheme can be safely and effectively used for emergency patients, so as to be supported by multicenter and large sample data in the future.
Transfusion guidelines and group assignment were followed both intraoperatively and postoperatively.
Application of blood transfusion guidelines in a major hospital of Kinshasa, Zaire.
AABB published transfusion guidelines in March in the Annals of Internal Medicine noting that doctors aren't consistent when deciding when to transfuse.
Transfusion guidelines for neonates and older children.
Modern transfusion guidelines in a case of massive hemorrhage after trauma call for transfusing fresh frozen plasma (FFP) at a ratio of FFP to red blood cells (RBCs) of >1:1.5.