exposure

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exposure

 [eks-po´zhur]
1. the act of laying open, as surgical exposure.
2. the condition of being subjected to something, as to infectious agents or extremes of weather or radiation, which may have a harmful effect.
3. in radiology, a measure of the amount of ionizing radiation at the surface of the irradiated object, such as a person's body; calculated by multiplying milliamperage times exposure time in seconds, expressed in units of milliampere seconds (mAs). See also x-rays.
x-ray exposure see exposure (def. 3).

ex·po·sure

(eks-pō'zhūr),
1. A condition of displaying, revealing, exhibiting, or making accessible.
2. In dentistry, loss of hard tooth structure covering the dental pulp due to caries, dental instrumentation, or trauma.
3. Proximity or contact with a source of a disease agent in such a manner that effective transmission of the agent or harmful effects of the agent may occur.
4. The amount of a factor to which a group or individual was exposed; in contrast to the dosage, the amount that enters or interacts with the organism.
Epidemiology A state of contact or close proximity to a chemical, pathogen, radioisotope or other other substance by ingesting, breathing, or direct contact—e.g., on skin or eyes; exposure may be short term—acute—or long term—chronic

Imaging An image, such as an anteroposterior exposure of the chest
Medical liability The degree of malpractice risk borne by a health care provider while performing a particular medical service
Nuclear physics The amount of ionising radiation in air from X-rays or gamma rays at a specific point in space, defined as the total charge of ions divided by the mass that would completely stop the radiation; the SI unit for exposure is coulomb per kg—C/kg; in human terms, exposure refers to the amount of ionizing radiation to which a person has been subjected

exposure

Epidemiology A state of contact or close proximity to a chemical, pathogen, radioisotope or other other substance by swallowing, breathing, or direct contact–eg, on skin or eyes; exposure may be short term–acute or long term–chronic. See Acute exposure, Athlete exposure, Chronic exposure, Intermediate exposure, Occupational exposure to bloodborne pathogens, Perinatal substance exposure Imaging An image, as an AP exposure of the chest Medical liability A general term for the degree of malpractice risk borne by a health care provider while performing a particular medical service See Risk management.

ex·po·sure

(eks-pō'zhŭr)
1. Contact of a compound with an epithelial barrier such as the skin, eyes, respiratory tract, or gastrointestinal tract before absorption occurs.
See also: exposed dose, external dose
2. Physical effects caused by harsh weather.
3. Placing an object or person in a given environmental state.

exposure

  1. the aspect of a particular location with respect to the points of the compass, for example, some garden plants, such as the peach tree in England, prefer a southern exposure.
  2. a rock outcrop.
  3. a soil section.

ex·po·sure

(eks-pō'zhŭr)
1. In dentistry, loss of hard tooth structure covering the dental pulp due to caries, dental instrumentation, or trauma.
2. A condition of displaying, revealing, exhibiting, or making accessible.
3. Proximity to contact with a source of a disease agent in such a manner that effective transmission of the agent or harmful effects of the agent may occur.

Patient discussion about exposure

Q. I feel some effects due to less exposure to sunlight. I heard that UV lighting is effective for depression. I’m living in northwest pacific; the summers are very nice but way to short. I feel some effects due to less exposure to sunlight. I have been told that sun light helps the production of the chemical in the brain that we are deficient of. If true, are there certain types of fixtures and/or bulbs that I should try.

A. Its also called seasonal affective disorder:
http://medical-dictionary.thefreedictionary.com/disorder

(SAD) depression with fatigue, lethargy, oversleeping, overeating, and carbohydrate craving recurring cyclically during specific seasons, most commonly the winter months.

I would about UV. Perhaps you should get a fluorescent light fixture for the area where you spend the most time each day and turn it on.

The web sites that sell the commercial light boxes want several hundred dollars or even more. (Seems like rip off to me.)
The web page at
http://www.ncpamd.com/seasonal.htm

says "studies suggest that regular fluorescent lights will work as well. UV (ultraviolet) light can damage eyes and skin, so it must be filtered out. It is best to buy a commercially built light box to be sure of the exact amount of light and to be sure that there are no isolated "hot spots" which could damage eyes. Many people still prefer full spectrum (minus UV) light because it i

Q. how do i keep my baby as minimal as passable exposed to the out side world threats? like decease and other things

A. It might seem like a caring attitude, but I'm not sure it's neither possible nor absolutely necessary - babies do get sick, usually only mildly and transiently, so trying to prevent all the cases of fever would be quite impossible.

What you can do, is to maintain the regular infant welfare visits, give him or her the necessary vaccinations (one of the most important things you can do for your child), make sure your baby eats well, regarding both the amount and type of foods, and generally keep a good hygiene: make sure to wash hands after you go to the toilet and before you handle your baby, don't expose him or her to other sick infants etc.

However, all this is just a general advice - if you have specific question you may want to consult your doctor (e.g. a pediatrician).

Take care,

More discussions about exposure
References in periodicals archive ?
No mortality of abalone was observed during 30-h air exposure, except for one dead abalone from each container receiving the Undaria pinnatifida and Laminaria japonica at 22 h after air exposure (Fig.
Dynamic changes of fermentation products that occurred in non-fermented and 56-d-fermented TMR were characterized after air exposure (Figure 2).
Thirty rats were randomly divided into five groups (6/group): the control group, the sham group, and three exposure groups with peritoneal air exposure for 1, 2, or 3 h after operation, respectively.
The intestinal mucosal changes after peritoneal air exposure were graded as follows: Grade 0, normal mucosal villi; Grade 1, development of subepithelial Gruenhagen's space, usually seen at the apex of the villus, often with capillary congestion; Grade 2, extension of the subepithelial Gruenhagen's space with moderate lifting of epithelial layer from the lamina propria; Grade 3, massive epithelial lifting down the sides of villi, with a few tips being denuded; Grade 4; denuded villi with lamina propria and dilated capillaries exposed, increased cellularity of lamina propria; and Grade 5, digestion and disintegration of lamina propria, hemorrhage, and ulceration.
Although numerous studies have explored the effects of air exposure on economically significant crustaceans (e.g., Brown and Caputi, 1983; Vermeer, 1987; DiNardo et al., 2002; Lorenzon et al., 2007), and fishes (Olla et al., 1998; Davis et al., 2001; Gingerich et al., 2007) few experiments have been conducted to evaluate the effects of freezing temperatures relevant to high-latitude fisheries.
A completely randomized design (CRD) was employed and results were analyzed by a two-way analysis of variance (ANOVA), with 2 treatments (capture with 3 or 5 minutes air exposure) and 5 sampling times (5, 15, 30 and 60 minutes and 24 hours after capture) as the factors plus the resting condition (control fish).
Fish handling, including capture and air exposure, is one of the stressors to which fish are submitted during farming.
"It is for the same reason that we hang washing on the line to dry with air exposure rather than leave it on the ground."
If we work within the limits of the constraints of the critical pumping speed, we can establish a graphical method of picking off net desorption rates at various points in time during a pumpdown as a function of the monolayers of water molecules adsorbed on the chamber's surfaces following air exposure.
It is thought there could be as many as 50 Carthaginian ships in the area, but excavating them could cause damage through air exposure. Plans are afoot for a high-tech museum which would allow visitors to explore the wrecks with underwater cameras.
Another supports enhancing determinant research, e.g., better defining recommended exposure limits for indoor air exposure for confinement facility workers.
However, because of good dust control measures undertaken by the demolition contractor and concrete recycler (Kroeker Demolition & Recycling, Fresno, Calif.), no worker outdoor air exposure during the demolition and crushing phases was measured in the study.