Analysis of sweet diterpene glycosides from Stevia rebaudiana: improved HPLC method.

An improved analytical method was developed which may be applied to quality control of stevioside and rebaudioside A contents in dried leaves of Stevia rebaudiana before processing; in a selective sampling program searching for plants of higher yield in diterpene glycosides content; or when a large number of samples are sent to the laboratory for analysis. The procedure developed involves two steps: solvent extraction followed by an isocratic HPLC analysis. The sample, 1 g of dried leaves of S.

Content analysis of speech of schizophrenic and control adoptees and their relatives: preliminary results.

Speech samples were collected on 20 Danish schizophrenic adoptees, along with 26 control adoptees and their respective biological and adoptive relatives. Typewritten transcripts of these speech samples were scored using the Gottschalk-Gleser Social Alienation-Personal Disorganization (SA-PD), or "Schizophrenic', content analysis scale. Both mean scale scores and the proportion of subjects with extremely high (i.

Mood changes during the internship.

A prospective study using two standardized psychological tests, the Profile of Mood States (POMS) and the Self-Rating Depression Scale (SDS), was conducted in an effort to quantify the emotional changes experienced by internal medicine house staff members during the internship. In contrast to instruments used in previous investigations of this type, the POMS and the SDS are standardized tests with proven reliability and validity. The six mood factors measured, "tension-anxiety," "depression-dejection," "anger-hostility," "vigor-activity," "fatigue-inertia," and "confusion-bewilderment," are reported to be among those factors most often affected by the internship experience.

Profiles of children's psychological states derived from the Gottschalk-Gleser content analysis of speech.

Comparison of 17 different scores, obtained with the Gottschalk-Gleser content analysis scales, with norms for White and Black children has now been made easily possible by the development of two types of profile forms. The scores derived by this method are transformed by plotting them, on a grid, to standard scores. Form 1 provides a nonlinear transformation that does correct for skewness of the score distribution.

Preliminary validation of a set of content analysis scales applicable to verbal samples for measuring the magnitude of psychological states in children.

Scores on 17 psychological dimensions of the Gottschalk-Gleser content analysis scales were obtained from 5-minute speech samples of 37 white children hospitalized on the psychiatric service of a general hospital. These content analysis scores were compared to identical scores obtained from a normative sample of 109 white children. Groups of children were classified by the Group for the Advancement of Psychiatry (GAP) system as having Healthy Responses (N = 2), Personality Disorders (N = 17), Reactive Disorders (N = 9), Psychoneurotic Disorders (N = 7), and Developmental Deviations (N = 2), and by DSM-III as having Parent-Child Problems (N = 2), Conduct Disorders (N = 26), Anxiety Disorders (N = 7), and Special Developmental Disorders (N = 2).