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screening    音标拼音: [skr'inɪŋ]
n. 筛选;筛选制板;屏蔽;遮蔽

筛选;筛选制板;遮罩;遮蔽

screening
筛选; 屏蔽

screening
筛选

screening
n 1: the display of a motion picture [synonym: {screening},
{showing}, {viewing}]
2: fabric of metal or plastic mesh
3: the act of concealing the existence of something by
obstructing the view of it; "the cover concealed their guns
from enemy aircraft" [synonym: {cover}, {covering}, {screening},
{masking}]
4: testing objects or persons in order to identify those with
particular characteristics

Screening \Screen"ing\ (skr[=e]n"[i^]ng), n.
the process of examining or testing objects methodically to
find those having desirable properties. See {screen[3]}.

Note: In the pharmaceutical industry, pharmaceutical
screening involves testing a large number of samples of
substances to find those having desirable
pharmacological activity; those samples which have the
property sought are called active or positive in the
screen. The substances tested may be pure compounds
with known structure, mixtures of pure compounds, or
complex mixtures obtained by extraction from living
organisms. There are often additional sets of test
performed on active samples, called

{counterscreening} to eliminate those samples that may also
possess undesirable properties. In the case of screening
of mixtures from living organisms, a type of
{counterscreening} called {dereplication} is usually
performed, to determine if the active sample contains a
known compound which has previously been studied.
[PJC]


Screen \Screen\ (skr[=e]n), v. t. [imp. & p. p. {Screened}; p.
pr. & vb. n. {Screening}.]
1. To provide with a shelter or means of concealment; to
separate or cut off from inconvenience, injury, or danger;
to shelter; to protect; to protect by hiding; to conceal;
as, fruits screened from cold winds by a forest or hill.
[1913 Webster]

They were encouraged and screened by some who were
in high commands. --Macaulay.
[1913 Webster]

2. To pass, as coal, gravel, ashes, etc., through a screen in
order to separate the coarse from the fine, or the
worthless from the valuable; to sift.
[1913 Webster]

3. to examine a group of objects methodically, to separate
them into groups or to select one or more for some
purpose. As:
(a) To inspect the qualifications of candidates for a job,
to select one or more to be hired.
(b) (Biochem., Med.) to test a large number of samples, in
order to find those having specific desirable
properties; as, to screen plant extracts for
anticancer agents.
[PJC]


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  • Screening (medicine) - Wikipedia
    In medicine, screening is a strategy used to look for as-yet-unrecognised conditions or risk markers [1] [2] [3] This testing can be applied to individuals or to a whole population without symptoms or signs of the disease being screened
  • Cancer Screening Tests - CDC
    Screening means checking your body for cancer before you have symptoms Getting screening tests regularly may find breast, cervical, colorectal (colon), and lung cancers early, when treatment is likely to work best
  • SCREENING | English meaning - Cambridge Dictionary
    SCREENING definition: 1 a showing of a film: 2 a test or examination to discover if there is anything wrong with… Learn more
  • SCREENING Definition Meaning - Merriam-Webster
    The meaning of SCREENING is the act or process of one that screens How to use screening in a sentence
  • Screening | definition of screening by Medical dictionary
    prescriptive screening that performed for the early detection of disease or disease precursors in apparently well individuals so that health care can be provided early in the course of the disease or before the disease becomes manifest
  • Screening Tests for Common Diseases - Johns Hopkins Medicine
    A screening test is done to detect potential health disorders or diseases in people who do not have any symptoms of disease The goal is early detection and lifestyle changes or surveillance, to reduce the risk of disease, or to detect it early enough to treat it most effectively
  • Health Screening - MedlinePlus
    Screenings are tests that look for diseases before you have symptoms Learn about conditions you can be common health screening tests
  • Screening in Public Health and Clinical Care: Similarities and . . .
    There now appear to be four main aims of screening, although seven terms are used to describe them: case-finding, mass screening, multiphasic screening, opportunistic screening, periodical health examination, prescriptive screening, and targeted screening
  • Screening: Learn More – Advantages and disadvantages of screening tests . . .
    This information offers a detailed description of the advantages and disadvantages of screening It also explains why research is needed to be able to say which tests are beneficial and which are harmful
  • Screening - World Health Organization (WHO)
    The purpose of screening is to identify people in an apparently healthy population who are at higher risk of a health problem or condition This can enable early treatments or inter¬ventions, and thereby reduce the incidence and or mortality of the health problem or condition within the population





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