| null c.’s |
lymphocytes that lack the surface markers for B or T cells; see K c's and NK c's.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
|---|---|
| null h. |
the particular hypothesis under investigation; termed null because it frequently asserts a lack of effect or of difference. Symbol H0. Cf. alternative h.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| null-cell a. |
a pituitary adenoma whose cells give negative results on tests for staining and hormone secretion; although classically they were considered to be composed of sparsely granulated or degranulated (nonfunctioning) cells, some contain functioning cells and may be associated with a hyperpituitary state such as acromegaly or Cushing's syndrome. These tumors are often discovered clinically only when they have grown large and are pressing on surrounding structures. Called also chromophobic a.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| nulliparity |
the condition or fact of being nulliparous.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
|
| null hypothesis |
This is usually a statement of "no effect", that is to say that the independent variable will not have any effect on the dependent variable and that any differences between the experimental and control groups are attributable to chance. The null hypothesis is usually represented by the symbol H0, and is stated in order that it can be rejected as an explanation for the results of the experiment.
출처: psy.st-andrews.ac.uk/resources/glossary.shtml
|