negative


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Related to negative: Negative Exponents, Negative ions

neg·a·tive

(neg'ă-tiv), Avoid the jargonistic use of this word as a synonym of normal or in expressions that may be obscure or ambiguous, as in negative findings and negative results.
1. Not affirmative; refutative; not positive; not abnormal.
2. Denoting failure of response, absence of a reaction, or absence of an entity or condition in question.
[L. negativus, fr. nego, to deny]

negative

(nĕg′ə-tĭv)
adj.
1. Marked by failure of response or absence of a reaction.
2. Not indicating the presence of a particular disease, condition, or organism.
3. Moving or turning away from a stimulus, such as light.

negative

Lab medicine
noun A lab result that is normal; failure to show a positive result for the specific disease or condition for which the test is being done.

Vox populi
noun Absence or nonexistence of a thing or activity.

negative

noun Lab medicine A lab result that is normal; failure to show a positive result for the specific disease or condition for which the test is being done. See False negative, Hemoccult negative, True negative Vox populi Absence or nonexistence of a thing.

neg·a·tive

(neg'ă-tiv)
1. Not affirmative; refutative; not positive.
2. mathematics Having a value less than zero.
3. physics, chemistry Having an electric charge resulting from a gain or overabundance of electrons, hence able to donate (lose) electrons.
4. medicine Denoting a response to a diagnostic maneuver or laboratory study that indicates the absence of the disease or condition tested for.
[L. negativus, fr. nego, to deny]

neg·a·tive

(neg'ă-tiv)
Not affirmative; refutative; not positive.
[L. negativus, fr. nego, to deny]

Patient discussion about negative

Q. is her2 positive more agressive than her2 negative? i know someone with her2 positive breast cancer and her doctor said it was more difficult to detect upon its return if it came back i want to know if it is true and what can she do to detect it earlier

A. Over-expression of her2/neu, a specific molecule in the breast cancer cell is indeed considered to convey worse prognosis, and suggest the need for chemotherapy and immunotherapy with Herceptin. However, the decision is much more complicated and should be made on case by case basis after consulting a professional.

Q. Rising PSA to 10 with two negative biospies? Expect cancer? 67 yrs old in good health otherwise.

A. High values don't always mean it's cancer. At 67 years old, you're prostate is most likely enlarging, resulting in the higher PSA results. And after two negative biopsies, it sounds like you're in the clear. Like Brandon said though, keep up with your regular check ups.
Source: http://www.northshore.org/healthresources/encyclopedia/encyclopedia.aspx?Version=Q3_08&DocumentHwid=hw5522&ViewHwid=hw5548

Q. Does the cooking have a negative effect on the protein content of the food? I have heard that high temperatures cooking breaks the protein, so does the cooking have a negative effect on the protein content of the food?

A. Yes. Proteins can be denatured by heat, but only when the protein structure is delicate or is exposed to extremely high temperatures for long time. You must remember that breaking of protein is the physical-chemical process where the physical or chemical structure of a protein is rearranged. So cooking will not reduce on the nutritive value of the food until it’s cooked at cooking temperatures.

More discussions about negative
References in periodicals archive ?
There is evidence that antipsychotics can contribute to the development of apathy, flat affect, and other negative symptoms.
Second, negative interest rates could hurt banks' profitability.
The aim of this study was to explore the relationship between positive and negative emotionality and psychological distress (depression anxiety and stress) among university students.
However, the volume of negative ions varies a great deal at different natural environments.
They explained that negative thoughts are believed to leave people vulnerable to different types of psychological disorders, such as anxiety or depression.
And unless students collectively get smarter and more judicious about borrowing, we're likely to see an even greater uptick in negative net worth households in the coming years.
Conversely, the highly volatile index in the Gaza Strip has deteriorated after a temporary rise in the previous month, falling form negative 14.8 points to negative 19.3 points this month, owing to varying trends among the industrial sub-sectors, said the PMA.
The policy goal of negative rates is to help stimulate the economy by influencing the day-to-day operations of commercial banks as financial intermediaries.
The researchers noted that family income and family structure are associated with negative life events, and thus, youths' initiation of sex.
Reportedly, items affecting comparability affected profit after tax by a negative SEK1,778m and EPS by a negative SEK4.24 in 2014.
Matter with negative mass, a seeming impossibility, could actually have existed in the early universe, a new study shows.
Patients with generalized anxiety disorder (GAD) are characterized by emotional hyperarousal, and their negative emotions are more intense than those of most other people (1).