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)
1. a structure resembling a curtain or partition, used as a protection or shield, e.g., against excessive radiation exposure.
2. a large flat surface upon which light rays are projected.
3. protective (2).
4. to examine by fluoroscopy (Great Britain).
5. to separate well individuals in a population from those with an undiagnosed pathologic condition by means of tests, examinations, or other procedures.

skin screen  a substance applied to the skin to protect it from the sun's rays or other noxious agents.
solar screen , sun screen sunscreen.

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,

n initial examination to determine the existence of a disease or disorder.

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]

screen

1. a framework or agent used as a shield or protector.
2. to examine.

fast screen
permits big reduction in exposure to x-ray beam.
screen film
prepared to be used with intensifying screens. The standard film and marketed as being of standard, fast or ultrafast speeds.
rare-earth screen
see rare-earth intensifying screen.
References in periodicals archive ?
The Visiongain author of Global Flexible Display Screens Market 2013-2018 : Bendable Screens for Smartphones, Tablets, E-readers/E-Paper, TV's and PC's report commented that 'Visiongain believes that the biggest challenge to be faced by OEM's in the flexible display screens market remains that of balancing the performance and the price of their devices to ensure premium user-experience and the best value for money at that price point.
5-inch color display screen, 50-channel GPS receiver, and 300-watt integrated fishfinder all for a little over $500.
Establishing an $8-per-unit tax credit for companies that recycle at least 5,000 display screens or computer system units per year.
Equipped with a 12-inch by 12-inch display screen, scanned images are sent directly to the unit's high-speed (20ppm) video laser printer or through a SCSI (PC) interface.
Both launches employed the weapon's stop motion aimpoint update capability, which allows the target image to be frozen on the cockpit display screen and gives the pilot the ability to change the aimpoint up until the final.
The consumer gets performance benefits, including a display screen that is brighter, with richer color, so information can be easily viewed from multiple angles without backlighting, Dow says.
The analyzer produces the results of all the calculations needed to report the amount retained and passed by each sieve and displays it on the display screen.
At present employers must comply with the guidelines set out in the HSE's Display Screen Regulations 1992 paper.
One broad side folds down to become the keyboard and reveal the display screen.
The user can feed inputs to various devices through the display screen itself, thus negating the need of an external input device.
Minimum specifications are: a) Double Sided Solar Message Board with the ability to display two separate messages (one each side) b) Message Board must be trailer mounted and equipped with a hydraulic lift c) Message display screen must be at a minimum of 36 X 96 d) Message display screen must display in the color Red e) Message display screen must have at a minimum of 38mm pixels or equivalent.