transmission

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transmission

 [trans-mish´un]
1. a passage or transfer, as of a disease from one individual to another, or of neural impulses from one neuron to another.
2. the communication of inheritable qualities from parent to offspring.
horizontal transmission the spread of an infectious agent from one individual to another, usually through contact with bodily excretions or fluids, such as sputum or blood, that contain the agent.
vertical transmission transmission from one generation to another. The term is restricted by some to genetic transmission and extended by others to include also transmission of infection from one generation to the next, as by milk or through the placenta.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

trans·mis·sion

(trans-mish'ŭn),
1. Synonym(s): transfer
2. The conveyance of disease from one person to another.
3. The passage of a nerve impulse across an anatomic cleft, as in autonomic or central nervous system synapses and at neuromuscular junctions, by activation of a specific chemical mediator that stimulates or inhibits the structure across the synapse.
4. In general, passage of energy through a material.
[L. transmissio, a sending across]
Farlex Partner Medical Dictionary © Farlex 2012

transmission

Infectious disease The process by which a pathogen passes from a source of infection to a new host Major types Horizontal transmission, which constitutes the majority, and consists of the spread from one person to another by direct contact, aerosol, fecal contamination, etc, and vertical transmission–mother to infant in the birth canal. See Aerosol transmission, Cyclopropagative transmission, Direct transmission, Droplet spread transmission, Hemo-oral transmission, Hereditary transmission, Horizontal transmission, Indirect transmission, Line-of-sight transmission, Maternal-infant transmission, Nondirect transmission, Reverse transmission, Vehicle-borne transmission, Vertical transmission.
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

trans·mis·sion

(trans-mish'ŭn)
1. Synonym(s): transfer.
2. The conveyance of disease from one person to another.
3. The passage of a nerve impulse across an anatomic cleft, as in autonomic or central nervous system synapses and at neuromuscular junctions, by activation of a specific chemical mediator that stimulates or inhibits the structure across the synapse.
4. In general, passage of energy through a material.
[L. transmissio, a sending across]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

transmission 

Passage of radiations through a medium or a substance. Transmission can be either diffuse (light is scattered in all directions) or regular (i.e. without diffusion). See absorption; translucent; transmittance; transparent.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

trans·mis·sion

(trans-mish'ŭn)
1. Conveyance of disease from one person to another.
2. Passage of a nerve impulse across an anatomic cleft.
[L. transmissio, a sending across]
Medical Dictionary for the Dental Professions © Farlex 2012

Patient discussion about transmission

Q. How flu is passing? I have too small children, and in the class of the older one there’s an outbreak of flu with many sick children. The last time my little son had the flu was like a hell for him, and I really won’t to prevent it. What can I do?

A. The virus (the creature that cause flu is spread in secretions from the nose, mouth etc, and children may be infective even days before they actually have visible disease.
However, simple measures, such as covering the nose and mouth while sneezing or coughing and washing hands thoroughly may minimize the transmission of the flu from child to child.

Q. Do I have hepatitis? I'm volunteering in a shelter for homeless people, and there are many drug addicts there. Yesterday, as I was serving them food one of the residents of the shelter (who I know to be a long term drug addict that uses heroine) coughed and expelled blood on my bare hands (apparently he had some lung disease). Do I now have hepatitis? I know that it's very common among drug addicts, and that it's transmitted through blood contact. I checked my hands and I didn't have any wounds or scratches, but I heard the virus can infect you even if you don't have any wound, is that right?

A. The chances of you getting hep c are very slim to none but my ? to you is why were you not wearing gloves to serve food ?

More discussions about transmission
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References in periodicals archive ?
NEC LCD Technologies is responding to these requirements by developing both transmissive type SOG LCD modules that achieve a balance between high luminance and a wide color gamut, and transflective type SOG LCD modules that achieve a balance between high luminance and a high reflectance ratio.
These researchers found the following distribution: 28.4% of the participants were categorized as transmissive, 12.7% were classified as progressive, and 59.0% were deemed to be eclectic.
Caption: Figure from patent W02014033324A2 showing transmissive diffraction structures
Therefore, a transmissive display may not be the best fit.
(2) A high contrast ratio of 500:1 (in transmissive mode) and high reflectivity of 15%
A new process, laser IRAM welding, passes laser radiation through one plastic component (transmissive) into a second where it is absorbed to meet the interface (absorptive component).
Reflective LCD panels can be made with a much higher density than the more common transmissive LCDs, so they are much brighter in RGB imaging.
Siskiyou has introduced a new range of diffraction grating mounts, the GMx series, which combine rotational adjustment of square components in all three axes and support both reflective and transmissive optics.
The transmissive XGA landscape-mode panel offers a response time of 8 ms, a contrast ratio of 550:1, 3H hard coating, horizontal viewing angles of 120[degrees], and vertical viewing angles of 100[degree], The 326-mm x 252-mm x 13.7-mm (W x H x D) product exhibits 1,024 X RGB X 768 resolution, luminance of 350 cd/[m.sup.2], a LVDS interface, 16 million colors, and a supply voltage of 3.3 VDC.
Semi-transmissive LCDs give customers a choice of two operating modes depending on the ambient light environment; one is the transmissive mode that uses a backlight system as a spectral source and the other is a reflective mode that uses an ambient light as a spectral source.