Marker

(redirected from risk marker)
Also found in: Dictionary, Thesaurus, Medical, Financial.

marker

[′märk·ər]
(immunology)
Any antigen that serves to distinguish cell types.
(ordnance)
A sign or signal for marking a location on land or water; frequently contains pyrotechnics.

Marker

 

a device for guiding a sower or planter to form interrows of a planned width. A marker consists of an extendable bar connected by a hinge to a sower or hitch. On the outer end of the bar is a disk, which is mounted at an angle and rotates freely; as it moves over the field, it leaves a furrow in the un-seeded area. On the next pass of the unit the furrow is used to guide the right front wheel or the inside edge of the right track of a tractor. Sowers and planters usually operate with right and left markers. The overlap (M) of the marker is determined according to the following formulas:

where a is the distance between the front wheels or the inside edges of the tracks, B is the distance between the extreme colters of the sower, and C is the size of the interrow.


Marker

 

an attachment to a single- or double-row sower that ensures parallel rows of seeds in subsequent passes. A marker consists of a beam with a weight on the end; the beam is secured to the front of the tractor. The tractor is steered so that the weight of the marker is above the track left by the planter wheel or marker disk on the preceding pass. Markers are often made reversible so that they can be used on both sides of the tractor.

marker

A sign, plaque, or monument that designates a building, site of historic importance, or boundary.

marker

markerclick for a larger image
Distance to go markers on the sides of runway.
An object displayed above ground level in order to indicate an obstacle or delineate a boundary (ICAO). Markers should be frangible, and those located near a runway or taxiway should be sufficiently low to ensure clearance for propellers and the engine pods of jet aircraft. The various types of markers are the distance-to-go markers, unpaved runway-edge markers, stop-way-edge markers, taxiway-edge markers, taxiway centerline markers, boundary markers, and unpaved taxiway-edge markers.
References in periodicals archive ?
Given this easy to use and well-validated risk formula, an obvious question to ask is 'why do we need additional cardiovascular risk markers?' The reason is multifold.
Another important risk parameter of metabolic complications is dyslipidemia and included among strong risk marker for NAFLD and associated complications.
The presence of an apo E--epsilon-4 allele alone nearly quadrupled the odds of an Alzheimer's diagnosis (OR, 3.70), and when researchers adjusted for the risk marker, it did not change the association between DDE and Alzheimer's.
(http://www.plosmedicine.org/article/info%3Adoi%2F10.1371%2Fjournal.pmed.1001372) "Erectile Dysfunction Severity as a Risk Marker for Cardiovascular Disease Hospitalisation and All-Cause Mortality: A Prospective Cohort Study." PLoS Medicine published online 29 January 2013.
In this review we distinguish between modifiable risk factors and biomarkers in the following way: A modifiable risk factor or risk marker (hereinafter called risk factor or risk marker) is a biological characteristic that is causally correlated to a clinical endpoint, and its intervention-induced change should predict outcome; the risk factor differs from a biomarker in that the latter is a biological characteristic indicating a normal biologic process, a pathogenic process, or an effect of treatment on such a process (1).
However, in non-selected general population with hypertrophic car diomyopathy the importance of ventricular tachyarrhythmia as a risk marker for SCD is not well established.
An article in this issue of the JOURNAL OF FAMILY PRACTICE offers interesting insights into these questions ("Piercing among adolescents: Body art as risk marker," page 126).
The enzyme, plasminogen activator inhibitor-1, is also a strong risk marker for heart disease, particularly in diabetics.
M2 PHARMA-March 27, 2014-Study shows higher plasma dimethylglycine to be mortality risk marker in CHD patients
"It does appear that low HDL is a risk marker. But it may not be a modifiable risk factor.
"Furthermore, based on the role adiponectin plays in insulin signaling and the presence of adiponectin receptors in neurological tissue, we hypothesized that adiponectin contributes to or serves as a risk marker for the development of all-cause dementia and AD," wrote Dr.
Fourth, the use of hsCRP in intermediate-risk groups has been endorsed by the CDC and the AHA (14), and a recent comprehensive review of novel risk markers from the National Academy of Clinical Biochemistry found hsCRP to be the only emerging risk marker with appropriate characteristics for clinical use (15).

Full browser ?