Southern Illinois University Carbondale

About: Southern Illinois University Carbondale is a education organization based out in Carbondale, Illinois, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 13570 authors who have published 24819 publications receiving 667385 citations. The organization is also known as: SIU Carbondale & SIUC.

Number and size of islets of Langerhans in pregnant, human growth hormone-expressing transgenic, and pituitary dwarf mice: Effect of lactogenic hormones

Abstract: To determine the effects of lactogenic hormones on pancreatic islet size and numbers, islets of 3-month-old female mice were intravitally stained by an ip injection of an alkaline-alcohol solution of diphenylthiocarbazone (dithizone; 100 micrograms/g BW). After 15 min, animals were killed, and pancreases were removed, diced, cleared in glycerol, and whole mounted on slides. Major and minor axes of Zn dithizoate-stained islets were measured at x40 magnification. Islet areas and volumes were calculated. Animals and appropriate controls studied included 16-day pregnant, two lines of human GH-expressing transgenic, and two lines of pituitary PRL- and GH-deficient dwarf mice. Islet numbers per pancreas ranged from about 500-1200 in all groups except the transgenic mice, in which two of five animals in one group and one of five in the other showed significant increases in islet numbers (> 3 x SD control mean). In all cases, significant (P 150 microns) islets. Our results with dwarf mice show that maintenance of islet numbers is not dependent upon pituitary PRL or GH; however, results with transgenic mice suggest that prolonged high levels of lactogens may induce islet neogenesis. The islet area and volume results for all of the mice studied support the hypothesis that lactogenic hormones are potent regulators of islet mass.

Applying the big five personality factors to the impostor phenomenon.

Abstract: The purpose of this study was to relate the impostor phenomenon (IP) to the Five-factor model of personality. A sample of 190 college students (79 men, 111 women) completed the Clance Impostor Phenomenon Scale (Clance, 1985), the Perceived Fradulence Scale (Kolligian & Sternberg, 1991), and the NEO-Personality Inventory-Revised (Costa & McCrae, 1992). Results of correlational and regression analyses support the predicted relations of imposter measures with high Neuroticism and low Conscientiousness. Facet-level correlations showed that depression and anxiety were particularly important characteristics of those with imposter feelings as well as low self-discipline and perceived competence. Implications for treatment and future research on the IP are discussed.

Perceived Power and Physical Violence in Marital Conflict

Abstract: Relations among perceived marital power, the demand/withdraw interaction pattern, and self-reports of the use of verbal aggression and physical violence were examined in a sample of 42 married couples. Couples completed several self-report questionnaires and discussed two areas of marital dissatisfaction, one identified by the wife and one identified by the husband. These interactions were rated for the use of the demand/withdraw interaction pattern. Regression analyses revealed that lower levels of perceived power by the husbands and higher levels of perceived power by the wives were associated with the use of verbal aggression and violence by husbands and wives, the husband demand/wife withdraw interaction pattern was associated with husband's use of verbal aggression, and the wife demand/husband withdraw pattern was associated with husband's verbal aggression and violence and with wife's violence.