Stability of intelligence: A 40-year follow-up.

Readministered the Revised Examination "M," a measure of intelligence, to 260 men approximately 40 yrs after they had received this test as World War II army recruits. Their average age and educational level was 64.7 yrs and Grade 8.7, respectively. Three sets of scores were compared: those obtained at the time of army enlistment; current scores obtained within the regular time limits of the test; and current scores obtained within double the test's regular time limits. Results indicate a reliable but minor decline in total score in the regular speeded condition and a reliable improvement over wartime total scores in the double-time conditions. Test–retest correlation coefficients, in general, attested to the long-term stability of individual differences among members of the sample. (French abstract) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Longitudinal analysis of behavioral, neurophysiological, viral and immunological effects of SIV infection in rhesus monkeys

A model is proposed in which a neurovirulent, microglial-passaged, simian immunodeficiency virus (SIV) is used to produce central nervous system (CNS) pathology and behavioral deficits in rhesus monkeys reminiscent of those seen in humans infected with human immunodeficiency virus (HIV). The time course of disease progression was characterized by using functional measures of cognition and motor skill, as well as neurophysiologic monitoring. Concomitant assessment of immunological and virological parameters illustrated correspondence between impaired behavioral performance and viral pathogenesis. Convergent results were obtained from neuropathological findings indicative of significant CNS disease. In ongoing studies, this SIV model is being used to explore the behavioral sequelae of immunodeficiency virus infection, the viral and host factors leading to neurologic dysfunction, and to begin testing potential therapeutic agents.     

Ronald O. Lippitt (1914–1986).

Ronald O. Lippitt, born March 21, 1914, was dedicated to the social uses of social science. He died on October 28, 1986. His legacy to social science consists of his early classic research on leadership styles in small groups, a study still cited regularly in social science texts; his book on planned change, which was widely used for many years; and other, lesser known work published in hundreds of articles, chapters, and books. All of this work had the same aim as his first study--to better human life through social science. Perhaps Ron's greatest contribution is the example he set by his steadfast dedication to making social science useful. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

pH-linked binding of Mn(II) to manganese peroxidase

The stability of Mn(II) binding to manganese peroxidase (MnP) has been studied as a function of pH by spectrophotometric and potentiometric titrations. The sensitivity of the potentiometric titrations allows collection of data that are consistent with a high-affinity and a low-affinity Mn(II) binding site on the peroxidase. The two sites differ in affinity by 4 to 900-fold between pH 4 and 6.5. The stability of Mn(II) binding to the high-affinity site increases with increasing pH, while the stability of Mn(II) binding to the low-affinity site decreases with increasing pH. Interestingly, at pH values above 5.0, the high-affinity site appears to be partially unavailable for binding Mn(II). A pH-dependent structural change in the Mn(II) binding site is proposed to account for this partial inactivation at elevated pH.     

Long-term effects of sexual victimization in childhood: An attributional approach.

Explored the relation between childhood sexual victimization experience and adult functioning in 103 women (aged 18–56 yrs) who were victimized as children or adolescents and 88 women (aged 18–57 yrs) who were not victimized, who served as controls. Members of both groups completed a questionnaire about their present social, psychological, and sexual functioning; measures included the Beck Depression Inventory, SCL-90, Texas Social Behavior Inventory, Attributional Style Questionnaire, Rotter's Internal–External Locus of Control Scale, and the Marlowe-Crowne Social Desirability Scale. Victimized Ss differed significantly from nonvictims on measures of (a) childhood family and social experiences; (b) adult attributional style; and (c) levels of depression, psychological distress, self-esteem, and sexual problems. Results suggest that the sexually victimized Ss' adult functioning was related most strongly to their attributional style for bad events. Perception of the victimization experience and quality of social support were important factors related to adult functioning. Possible implications for treating women who are experiencing problems related to childhood sexual victimization experiences are discussed. (20 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Long-term survival of patients with Wegener''s granulomatosis from the American College of Rheumatology Wegener''s Granulomatosis Classification Criteria Cohort

Thirty children, aged between five and 15 years, were randomly allocated to receive postoperative analgesia from continuous morphine infusion (CMI) or patient controlled analgesia (PCA), also using morphine. The children's morphine consumption, respiratory rates, oxygen saturations and observation points during which they were sleeping were recorded during two periods, one on the day of operation and one the following day. The median dose of morphine consumed by the children using PCA was significantly larger than that consumed by the children having continuous infusions. Children aged between nine and 15 years using PCA had significantly lower minimum respiratory rates and minimum oxygen saturations than similarly aged children receiving continuous infusions. There was no significant difference between the PCA and CMI groups in the number of observation times that the children were asleep or in the minimum respiratory rates and minimum oxygen saturations in the awake and sleeping children.