| EF | ectopic focus; edema factor; ejection fraction; elastic fibril; electric field; elongation factor; e... |
|---|---|
| FF | degree of fineness of abrasive particles; fat-free; father factor; fecal frequency; fertility factor... |
| ECG | Electro-Cardio-Graphy(-Gram); 심전도 = EKG 1. Conducting System Structu... |
| EFFU | epithelial focus-forming unit |
| FFD | Fellow in the Faculty of Dentistry; focus-film distance |
| FGD | Focus Group Discussions |
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| MCF | Mink cell focus-inducing |
| RFFIT | Rapid Fluorescent Focus Inhibition Test |
| SFFV | Spleen Focus Forming virus |
| ACF | aberrant crypt focus |
| focus | Group of (frequently neoplastic) cells, identifiable by distinctive morphology or histology. (18 Nov 1997) |
|---|---|
| focus groups | A method of data collection and a qualitative research tool in which a small group of individuals are brought together and allowed to interact in a discussion of their opinions about topics, issues, or questions. (12 Dec 1998) |
| focus, principal | <physics> The point at which a lens focuses an axial object point. Synonymous with focal point. (05 Aug 1998) |
| focus-forming assay | <investigation> A lab technique used to find out if a particular piece of DNA contains oncogenes (genes which are associated with cancer). This is done by putting the DNA into animal cells which normally show contact inhibition, or which stop growing when they come into physical contact with other cells or reach a certain density in the culture. If the cells lose contact inhibition and form areas of densely-packed cells (called foci) after receiving the DNA, it means that the DNA did contain oncogenes. (05 Jan 1997) |
| focus-forming unit | A measurement of the concentration of live virus in a given amount of fluid. This is measured by spreading a known amount of the fluid over a layer of cultured cells which are infected by the virus, then counting the number of areas in the culture which look infected. (09 Oct 1997) |
| focused grid | A grid in which the divergent beam of X-rays from a particular distance range will be parallel to the lead strips. (05 Mar 2000) |
| focusing device | <microscopy> A device which effectively increases the angular aperture of the electron beam illuminating the object, rendering the focus more critical. (05 Aug 1998) |
| focusing glass | <microscopy> A hand magnifier, used at the focal plane of a camera, usually with the ground glass removed. Its purpose is to examine the image for critical focus. It is, as a rule, a low-power magnifier so mounted that it is in focus when supported on a piece of clear glass at the focal plane of the cam- era, for studying the image. It operates equally well on the aerial image. (05 Aug 1998) |
| focusing magnifier | <microscopy> A low-power light microscope, telescope, or simple lens used to observe the electron image formed on a fluorescent screen. (05 Aug 1998) |
| real focus | The point of meeting of convergent rays. (05 Mar 2000) |
|---|---|
| Ghon's focus | Calcification seen in pulmonary parenchyma (usually mid-lung area) and hilar nodes resulting from earlier, usually childhood, infection with tuberculosis. Synonym: Ghon's complex, Ghon's focus, Ghon's primary lesion. (05 Mar 2000) |
| virtual focus | The point from which divergent rays seem to proceed, or that at which they would meet if prolonged backward. (05 Mar 2000) |
| mink cell focus-inducing viruses | Murine leukaemia viruses discovered in 1976 by hartley, wolford, old, and rowe and so named because the viruses originally isolated had the capacity to transform cell foci in mink cell cultures. Mcf viruses are generated in a multi-step process by recombination with other viral types including akr, friend, moloney, and rauscher. (12 Dec 1998) |
| plasma focus | <radiobiology> The Plasma Focus is another device which depends on the pinch effect. Possible applications include both fusion and plasma propulsion, as well as other plasma research. In essence the plasma focus is generated by discharge of a current across the ends of two coaxial insulated conducting pipes. The Plasma Focus caused a huge stir when they generated copious neutrons, until it was discovered that the source of the neutrons was knockoffs from deuterium due to pinch accelerated electrons or ions. Plasma focus is sort of a point version of the Zpinch. (09 Oct 1997) |
| condenser, variable-focus | <microscopy> Essentially an Abbe condenser in which the upper lens element is fixed and the lower movable. The lower lens may be used to focus the illumination between the elements so that it emerges from the stationary lens as a large diameter parallel bundle. The field of low-power objectives may thus be filled without removing the top element. at the opposite extreme it can be adjusted to have a numerical aperture as high as 1.3. See: illumination, critical. (05 Aug 1998) |
| principal focus | The real or virtual meeting point of rays passing into a lens parallel to its axis. (05 Mar 2000) |
| spleen focus-forming viruses | Murine leukaemia viruses that are replication-defective and rapidly transforming. The envelope gene plays an essential role in initiating erythroleukaemia, manifested by splenic foci, splenomegaly, and polycythemia. Spleen focus-forming viruses are generated by recombination with other viral types including friend p (polycythemia), friend a (anaemia), rauscher, and cas (from wild mice at lake casita, california). (12 Dec 1998) |
| natural focus of infection | An ecosystem in which an infectious agent normally persists in nature; e.g., yellow fever virus in a jungle monkey-Haemagogus mosquito ecosystem. (05 Mar 2000) |
| depth of focus | <microscopy> The depth or thickness of the image space that is simultaneously in acceptable focus. The range of distances between a lens and image plane (target in the video pickup device) for which the image formed by the lens at a given setting is clearly focused. With a high-numerical aperture microscope objective, the depth of field is very shallow, but the depth of focus can be quite deep and reach several millimetres. (05 Aug 1998) |
| Friend spleen focus forming virus | <virology> Defective virus found in certain strains of Friend virus, detected by its ability to form foci in spleens of mice and believed to be responsible in those strains for the production of a leukaemia associated with polycythaemia rather than anaemia. (18 Nov 1997) |
Synonyms : Focus Group, Group, Focus, Groups, Focus
| focus |
the concentration of attention or energy on something; "the focus of activity shifted to molecular biology"; "he had no direction in his life" maximum clarity or distinctness of an image rendered by an optical system; "in focus"; "out of focus" maximum clarity or distinctness of an idea; "the controversy brought clearly into focus an important difference of opinion" concentrate: direct one's attention on something; "Please focus on your studies and not on your hobbies" a central point or locus of an infection in an organism; "the focus of infection" cause to converge on or toward a central point; "Focus the light on this image" stress: special emphasis attached to something; "the stress was more on accuracy than on speed" concenter: bring into focus or alignment; to converge or cause to converge; of ideas or emotions a point of convergence of light (or other radiation) or a point from which it diverges become focussed or come into focus; "The light focused" put (an image) into focus; "Please focus the image; we cannot enjoy the movie" a fixed reference point on the concave side of a conic section
출처: wordnet.princeton.edu/perl/webwn
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| focus |
Focus is an encyclopedia first published in Swedish in 5 volumes 1958-1960, later extended with additional volumes, republished in several editions, and translated to Danish, Norwegian, French, Portugese, and Spanish. ...
출처: en.wikipedia.org/wiki/Focus_(encyclopedia)
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| focus |
The focus, or focal point of a lens or parabolic mirror is the point onto which collimated light parallel to the axis is focused. Although the focus is conceptually a point, physically, the focus has a spatial extent, called the Airy disc, or blur circle, due to the width of the aperture of the imaging optics. The focus of an elliptic mirror is either of two points at which light from one point converges on the other. ...
출처: en.wikipedia.org/wiki/Focus_(optics)
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| focus group |
A group of people convened for the purpose of obtaining perceptions or opinions, suggesting ideas, or recommending actions. A focus group is a method of collecting information for the evaluation process.
출처: www.epa.gov/evaluate/glossary/f-esd.htm
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| focus group |
A group of people selected for their relevance to an evaluation that is engaged by a trained facilitator in a series of discussions designed for sharing insights, ideas, and observations on a topic of concern.
출처: www.cdc.gov/tobacco/evaluation_manual/glossary.htm...
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| focus | maximum clarity or distinctness of an image rendered by an optical system |
|---|---|
| focus | maximum clarity or distinctness of an idea |
| focus | the concentration of attention or energy on something |
| focus | a fixed reference point on the concave side of a conic section |
| focus | a point of convergence of light (or other radiation) or a point from which it diverges |
| focus | a central point or locus of an infection in an organism |
| focus | special emphasis attached to something |
| focus | put into focus |
| focus | become focussed or come into focus |
| focus | focus one's attention on something |
| focus | bring into focus or alignment |
| focus | cause to converge on or toward a central point |
제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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제품명 |
판매사 |
보험코드 | 성분/함량 | 구분/보험급여 |
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