constant (redirected from Michaelis constant (Km))

constant /con·stant/ (kon´stint)

1. stable; not subject to change.

2. a quantity that is not subject to change.

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association constant  a measure of the extent of a reversible association between two molecular species.

Avogadro's constant  see under number.

binding constant  association c.

Michaelis constant  a constant representing the substrate concentration at which the velocity of an enzyme-catalyzed reaction is half maximal; symbol K M or K m.

sedimentation constant  see under coefficient.

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con·stant (knstnt)

adj.

1. Continually occurring; persistent.

2. Unchanging in nature, value, or extent; invariable.

n.

1. A quantity assumed to have a fixed value in a specified mathematical context.

2. An experimental or theoretical condition, factor, or quantity that does not vary or that is regarded as invariant in specified circumstances.

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constant

[kon′stant]

a fact or principle that is not subject to change.

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constant

a datum, fact or principle that is not subject to change.

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Michaelis constant (K_m)

a dissociation constant for the substrate concentration in an enzymatic reaction.

constant (C) region

see constant domains.

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Patient discussion about Michaelis constant (Km).

Q. I have a constant foot pain during night what can i do to ease the pain? I am a diabetic (type 2) for 22 years. recently i started to suffer from a recurrent foot pain. The pain is only at night time, and i cant make it stop. i tried Tylenol and NSAIDs but nothing helped. what can i do?

A. You are describing a Neuropathic pain disorder. This is a very common symptom that occurs with diabetes. To treat it you need to take better control on your glucose level.
In addition you can try anti epileptic drugs -
I heard it can help, but must admit i never tried it myself.

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.

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. It sound like you suffer from golfer's elbow.
I know you dont play golf its just the name of it.
you can hear (and see) more about it here:
http://www.5min.com/Video/What-is-Golfers-Elbow-5507