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a fact or principle that is not subject to change.
Avogadro's constant Avogadro's number.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


A quantity that, under stated conditions, does not vary with changes in the environment.
Farlex Partner Medical Dictionary © Farlex 2012


A quantity that, under stated conditions, does not vary with changes in the environment.
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

Patient discussion about constant

Q. I have constant pain on my feet more on my bones than anything,do I have arthritis? I do already have plantar fascictis

A. Chronic arthritis is a disease of the elderly and it isn't common to suffer from it in young age, however joint pain or bone pain can be caused by several other reasons, that might not be chronic, such as an infection, excessive physical activity or such. You should see a doctor to evaluate the pain and joint movement. He/ she might send you to do an x-ray to see if there's something they can see that is wrong with the joint or bone (dislocation or fracture).

Q. I have a constant pain in the inside part of my arm. What can it be? In the last few weeks I have noticed that I have a right arm pain. The strange thing is that the pain is in a specific point in the inside part of the arm, very near to the elbow. I thnk the pain started for the first time during a baseball game but I am not sure. I work in a factory and as I sad before I use my right arm for baseball, and this pain hinders me. What can it be?

A. I myself play a lot as a pitcher, and i have the same pain. It is more painful when the forearm is flexed towards the body.
I went to my GP about it because it drove me nuts, and he said that I need to take anti-inflammatory drugs, and if it will not work he will inject me something.
he prescribed me a great medication and I didn't need the injection.

Q. Is it normal for someone with untreated Adult ADHD to have constant, worried thoughts? As a child I was diagnosed with "off the charts" ADHD and took medication which fixed the problem for about 7 years. I ended the medication in junior high and now I am in college. I am no having constant worried thoughts and my mind is always racing. I think this may be the ADHD back now as an adult, would this make sense?

A. Attention Def is often goes hand in hand with Depression. Depression is often missed in diagnosis because the person suggests that they are not sad and don't cry often. Depression might better be described as a feeling of emotional heavyness or pressure without a real reason. This feeling of emotional heavyness is awful and people will try to find reasons to explain why they feel this way so that they can do something about it. Generally, if a person makes a decision about something, such as paying a bill, this heavyness will lift for a while and the person can move on to another thought. When a person is depressed this heavyness is lifted but only for a very short period of time, sometimes only for a few seconds, and the person cannot move on to a new thought. Instead, the tendency is to rethink the same thought over and over to get, although short lived, a bit of emotional releif.

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References in periodicals archive ?
In the Classical Model, the same constant term is used for all cross-section units in the pooled regression model.
The coefficient for time trend (a constant term in regressions) is negative for men and positive for women, implying that the dynamics of accidents in time differs between genders in favor of men.
Note that the results are the same as what we found using the chart functionality: The slope coefficient (b), the estimated constant term (a), and the calculated Rsquared value are all exactly the same.
Similarly for Dirac particles when ([PSI] = [f.sub.1]), (37) gives the following constant terms:
Finally, significant random effects of the constant term and BMI and age signalize significant amounts of intrapersonal variance in these parameters, respectively, the initial value of fitness performance.
Figures 1-3 show data in both current and constant terms.
Each member in AGKTP [4] needs to restore the constant term of the polynomial [f.sub.t](x) with degree t by applying Lagrange interpolation [10] to get the group key.
By comparing the fitting effect evaluation parameter values in Figures 8 and 9 and Table 3, it can be seen that the fitting accuracy has been significantly improved when a constant term as a correction parameter is added to double exponential model to fit the infrared thermal graphic sequence.
where M is a constant term, [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII] and [N.sub.A] = kN.
A constant term is added to the forecasting equation of GM (1, 1), as well as a linear term, because the approximate exponential trend of the extracted long-term increasing curve is unstable and a linear trend may appear in special periods.
In this setting, the constant term of a firm can vary from time to time.
In this case, the composite error term may be rewritten as [u.sub.t] = c + [e.sub.t], where c is a constant term and [e.sub.t] is a random variable with zero mean.

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