analysis (redirected from systems analysis)

analysis /anal·y·sis/ (ah-nal´ĭ-sis) pl. anal´yses  

1. separation into component parts; the act of determining the component parts of a substance.

2. psychoanalysis.analyt´icanalyt´ical

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bite analysis  occlusal a.

blood gas analysis  the determination of oxygen and carbon dioxide concentrations and pressures with the pH of the blood by laboratory tests; the following measurements may be made: Po2, partial pressure of oxygen in arterial blood; Pco2, partial pressure of carbon dioxide in arterial blood; So2, percent saturation of hemoglobin with oxygen in arterial blood; the total CO2 content of (venous) plasma; and the pH.

gasometric analysis  analysis by measurement of the gas evolved.

gravimetric analysis  quantitative analysis in which the analyte or a derivative is determined by weighing after purification.

occlusal analysis  study of the relations of the occlusal surfaces of opposing teeth.

qualitative analysis  chemical analysis in which the presence or absence of certain compounds in a specimen is determined.

quantitative analysis  determination of the proportionate quantities of the constituents of a compound.

pulse-chase analysis  a method for examining a cellular process occurring over time by successively exposing the cells to a radioactive compound (pulse) and then to the same compound in nonradioactive form (chase).

spectroscopic analysis , spectrum analysis that done by determining the wavelength(s) at which electromagnetic energy is absorbed by the sample.

transactional analysis  a type of psychotherapy based on an understanding of the interactions (transactions) between patient and therapist and between patient and others in the environment.

vector analysis  analysis of a moving force to determine both its magnitude and its direction, e.g., analysis of the scalar electrocardiogram to determine the magnitude and direction of the electromotive force for one complete cycle of the heart.

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a·nal·y·sis (-nl-ss)

n. pl. a·nal·y·ses (-sz)

1. The separation of a whole into its constituent parts for individual study.

2. The separation of a substance into its constituent elements to determine either their nature or proportions.

3. The stated findings of such a separation or determination.

4. Psychoanalysis.

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analysis

[ənal′əsis]

Etymology: Gk, ana + lyein, to loosen

1 the separation of substances into their constituent parts and the determination of the nature, properties, and composition of compounds. See also qualitative analysis, quantitative analysis.

2 an informal term for psychoanalysis. analytic, adj. analyze, v.

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analysis,

n the process of identifying a substance's composition. May include chromatography, mass spectrometry, infrared spectroscopy, optical rotation, specific gravity, and refractive index. See also qualitative analysis and quantitative analysis.

analysis, behavioral,

n in behavioral medicine, the study of an association between an individual's behavior and the environmental conditions that influence the behavior and actions.

analysis, case,

n 1. procedure for recommending case management options.
2. method for selecting the optimal homeopathic remedy; considers the evolution and set of symptoms involved in the course of the disease. See also anamnesis, case taking, and patient history.

analysis, evidence–based,

n critical analysis and appraisal of published research studies, using systematic, predefined criteria and approaches.

analysis, hair mineral,

n an analysis of the mineral content of hair; used to assess metabolic disorders and mineral toxicity or deficiencies.

analysis, instrumental (inˈ·str·menˑ·tl ·nalˑ··sis),

n use of a device, such as a mass spectrometer or gas chromatograph, for chemical analysis.

analysis, intention-to-treat,

n analysis of the data obtained from an investigational method that includes all the participants involved in the study from the beginning. This prevents bias caused by participants dropping out of the study.

analysis, Laban movement,

n diagnostic measure in dance/movement therapy.

analysis, qualitative,

n 1. method for evaluating qualitative, rather than quantitative data, making it more amenable to assessment and communication.
2. identification of the components that make up a substance.

analysis, quantitative,

n 1. method for evaluating data using a system of numerical measurement.
2. mea-surement of the amounts of spe-cific components that constitute a substance.

anamnesis (a·nam·nēˑ·ss),

n 1. the historical circumstances of a patient's illness from a personal perspective.
2. the practice of acquiring a patient's description of the course of illness. See also case-taking.

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analysis (nal´isis),

n a separation into component parts.

analysis, anthropometric

n a study of the human body that uses such tools as body mass index, basal metabolic rate, bioelectrical impedance, and dual energy radiograph absorptiometry, along with measurements of skinfold thickness and arm muscle circumference, to assess the structure, form, and composition of the body for purposes of comparison.

analysis, bite mark,

n a technique in forensic dentistry for comparing a bite mark to a dental cast for purposes of identifying the person who made the mark.

analysis, cephalometric

n the evaluation of the growth pattern or morphologic conoval of teeth, modification of the contour after the removal of teeth, and preparation of the oral cavity for dentures.

analysis, dietary,

n a comparison of an individual's typical food choices with those recommended in the Food Guide Pyramid; deviations are noted, and recommendations are given.

analysis, occlusal,

n a study of the relations of the occlusal surfaces of the opposing teeth and their functional harmony.

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analysis

separation into component parts.

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cohort analysis

the separation of each of two cohorts into component parts and comparing the results.

current analysis

analysis performed on contemporary data.

discriminant analysis

a form of multivariate analysis in which the objective is to establish a discriminate function. The function (typically a mathematical formula) discriminates between individuals in the population and allocates each of them to a group within the population. The function is established on the basis of a series of measurements or observations made on the individuals.

economic analysis

evaluation of the costs and benefits of a commercial enterprise that takes into account additional returns, returns no longer obtained, additional costs and costs no longer incurred, discounting of gains back to the time when the project began, and opportunity costs relating to potential profitability from alternative use of the investment.

factor analysis

a multivariate technique which analyzes the underlying structure of a set of data. It is useful in explaining observed relationships amongst a large number of variables in terms of simpler relations.

guaranteed analysis

declares the range within which nutrients occur in a manufactured animal food.

multivariate analysis

techniques for the study of simultaneous variation in a number of variables. Includes linear discriminant functions, cluster analysis and factor and principal component analysis.

path analysis

a statistical technique for testing a limited number of causal hypotheses, the causal relationships between variables, by manipulation of one or more of the variables and predicting the outcome.

qualitative analysis

determination of the nature of the constituents of a compound or mixture.

quantitative analysis

determination of the proportionate quantities of the constituents of a compound or mixture.

regression analysis

a general statistical technique that analyzes the relationship between a dependent (criterion) variable and a set of independent (predictor) variables.

systems analysis

analysis of the interaction of a system, e.g. a biological system, often for the purpose of analyzing the differences between systems. See also system.

analysis of variance

a statistical method for comparing variables by partitioning the variance of the observations between the effects of the different variables and comparing it with the underlying random variation.

vector analysis

analysis of a moving force to determine both its magnitude and its direction, e.g. analysis of the scalar electrocardiogram to determine the magnitude and direction of the electromotive force for one complete cycle of the heart.