screen


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screen

 [skrēn]
1. a framework or agent used as a shield or protector; called also protectant and protective.
2. to separate well individuals in a population from those who have an undiagnosed disease, defect, or other pathologic condition or who are at high risk by means of tests, examinations, or other procedures. See also screening.
Bjerrum screen tangent screen.
fluoroscopic screen a phosphorescent screen that shows the movement and relationship of organs and structures in fluoroscopy.
intensifying screen a fluorescent screen used in conjunction with x-ray film to enhance the effect of the radiation and reduce dosage to the patient. The screen must be matched to the emissivity range; the emissivity of phosphorus is similar to that of the human eye, so that phosphors absorb x-ray energy and convert it to visible light.
tangent screen a large square of black cloth with a central mark for fixation; used with a campimeter in mapping the field of vision.

screen

(skrēn),
1. A sheet of any substance used to shield an object from any influence, such as heat, light, or x-rays.
See also: screen memory.
2. A sheet on which an image is projected.
See also: screen memory.
3. Formerly, to make a fluoroscopic examination.
See also: screen memory.
4. In psychoanalysis, concealment, as one image or memory concealing another.
See also: screen memory.
5. To examine, evaluate; to process a group to select or separate certain individuals from it.
6. A thin layer of crystals that converts x-rays to light photons to expose film; used in a cassette to produce radiographic images on film.
[Fr. écran]

screen

(skrēn)
n.
1. A movable device that serves to protect, conceal, or divide.
2. A surface or device on which an image is displayed for viewing.
3. A screen memory.
v.
1. To process a group of people in order to select or separate certain individuals from it.
2. To test or examine for the presence of disease or infection.
3. To subject to genetic screening.

screen

Molecular biology
verb To detect a phenotype’s presence or absence by testing for growth under different conditions (e.g., plus and minus an auxotrophic supplement or permissive and non-permissive conditions), usually done by replica plating or patching colonies onto each type of plate.
 
Public health
noun
(1) Any systematic activity—e.g., measuring BP, glucose or cholesterol; pap smear; or other activity—which attempts to identify a particular disease in persons in a particular population.
(2) A popular term for a solar protection barrier.

screen

Public health
1. Any systematic activity–eg, measuring BP, glucose or cholesterol, pap smear, or other activity, which attempts to identify a particular disease in persons in a particular population. See Drug screen, General health screen, Laxative screen, Memory Impairment screen, Metabolic screen, Neonatal screen.
2. A solar protection barrier. See Sunscreen.

screen

(skrēn)
1. A sheet of any substance used to shield an object from any influence (e.g., heat, light, x-rays).
2. A sheet on which an image is projected.
3. psychoanalysis Concealment, as one image or memory concealing another.
See also: screen memory
4. To examine, evaluate; to process a group to select or separate certain individuals from it.
5. A thin layer of crystals that converts x-rays to light photons to expose film; used in a cassette to produce radiographic images on film.
6. To examine for the presence or absence of specified characteristics to determine whether further examination is needed.
[Fr. écran]

screen

(skrēn)
1. A sheet of any substance used to shield an object from any influence, such as heat, light, or x-rays.
2. A sheet on which an image is projected.
3. To examine, evaluate; to process a group to select or separate some individuals from it.
Synonym(s): screening (1).
[Fr. écran]
References in periodicals archive ?
* Interkleen screens: Trademarked for special materials, it features an elongated slotted screen with three to five shoot wires designed to maximize throughput.
The researchers suggested that such an approach leads to more screen time because using it as a reward or punishment increases a child's attraction to the activity.
Among infants screened during 2010-2016, TSH concentrations of 20 [micro]IU/mL-40 [micro]IU/mL were found for approximately 21,000 infants on the first screen with 85 remaining elevated on the second screen.
Sandvik has refreshed its flagship QE440 scalper screen with the introduction of the QE441, the latest addition to its Premium range of scalping screens.
In their 2007 survey of 79 primary care physicians in Victoria, British Columbia, Hoag and colleagues found that 81.0% of respondents screened asymptomatic men, and most used a combination of PSA and DRE, 36.7% used DRE alone and 2.5% PSA.[sup.24] In a survey of 485 family physicians in Newfoundland and Labrador, Curran and colleagues found that although most respondents screened men 50 and older, there were divergent beliefs about the benefits of prostate cancer screening.[sup.25]
Even before material is down-sized, however, the human touch in the form of an alert hydraulic material handler operator and sorters at picking stations can help mixed C&D recyclers set aside high-value items (sheet metal and corrugated boxes) and spare the grinding and screening equipment from meeting up with heavy objects such as anvils or railroad spikes or troublesome plastic sheeting that can wrap around the discs on some types of screens.
Standard screen printers come with strokes from 400 to 1000 mm and can be equipped for flat or round print applications.
7: With 1 in possession of the ball, 3 back screens for 2 for a drive into the lane for a scoring pass from 1 or a big guard post-up, while 5 executes the "screen the screener" move for 3.
In addition to offering energy savings, solar screen reduces glare and fading and offers daytime privacy.
Thus, they should be familiar with risk factors for LTBI and screen children with TST only when >1 risk factor is present.
A lightweight single-layered screen was therefore face-fixed to the Vaudoyer building, yielding to the existing architectural detail by being cut around cornices and door heads, while a more solid screen envelopes Lahalle's building, including the three-tier mansard rood.