University of Oklahoma

About: University of Oklahoma is a education organization based out in Norman, Oklahoma, United States. It is known for research contribution in the topics: Population & Radar. The organization has 25269 authors who have published 52609 publications receiving 1821706 citations. The organization is also known as: OU & Oklahoma University.

The Diary: Diary-Interview Method

Abstract: AUTHORS’ NOTE: The ethnographic study on which this paper draws was funded by Grant 70-039, Law Enforcement Assistance Administration, United States Department of Justice. The findings and interpretations presented in this paper do not necessarily reflect the policies or offical position of the funding agency. An earlier version of this paper was delivered at the American Sociological Association Annual Meeting in New Orleans, August 1972. DON H. ZIMMERMAN is Associate Professor of Sociology at the University of California, Santa Barbara. His most recent publications include &dquo;Sex-Roles, Interruptions and Silences in Conversation&dquo; (with Candace West) which appeared in the 1975 volume, Language and Sex: Difference and Dominance, edited by B. Thorne and N. Henle; and &dquo;A Reply to Professor Coser&dquo; in The

Genomic Insights into Syntrophy: The Paradigm for Anaerobic Metabolic Cooperation

Abstract: Syntrophy is a tightly coupled mutualistic interaction between hydrogen-/formate-producing and hydrogen-/formate-using microorganisms that occurs throughout the microbial world. Syntrophy is essential for global carbon cycling, waste decomposition, and biofuel production. Reverse electron transfer, e.g., the input of energy to drive critical redox reactions, is a defining feature of syntrophy. Genomic analyses indicate multiple systems for reverse electron transfer, including ion-translocating ferredoxin:NAD+ oxidoreductase and hydrogenases, two types of electron transfer flavoprotein:quinone oxidoreductases, and other quinone reactive complexes. Confurcating hydrogenases that couple the favorable production of hydrogen from reduced ferredoxin with the unfavorable production of hydrogen from NADH are present in almost all syntrophic metabolizers, implicating their critical role in syntrophy. Transcriptomic analysis shows upregulation of many genes without assigned functions in the syntrophic lifestyle. Hi...

Dividends and Share Repurchases in the European Union

Abstract: Using a database of over 4100 listed industrial companies, we examine the evolution of cash dividends and share repurchases from 1989 to 2005 in the fifteen nations that were members of the European Union before May 2004. As in the United States, the fraction of European firms paying dividends declines over this period, while total real dividends paid increase significantly. Most strikingly, share repurchases have surged in the EU, rising to over half the value of cash dividend payments in 2005. We also show that financial reporting frequency has steadily increased and is associated with higher payout, and that privatized companies account for almost one-quarter of total EU cash dividend payments but only two percent of the number of listed firms. Our logistic regression analyses of the likelihood to pay dividends and repurchase shares, and our panel data analyses of the payout amounts, verify that similar influences affect payout in the EU as in America, but that increasing fractions of retained earnings to total equity do not increase the likelihood of cash payouts, whereas company age does.

Risk Factors for Preeclampsia, Abruptio Placentae, and Adverse Neonatal Outcomes among Women with Chronic Hypertension

Abstract: Background Women with chronic hypertension who become pregnant have an increased risk of preeclampsia and adverse neonatal outcomes. However, within this group, the risk factors for these adverse events are not known. Methods We analyzed data on outcomes for 763 women with chronic hypertension enrolled in a multicenter trial of low-dose aspirin for the prevention of preeclampsia. Preeclampsia was defined as new-onset proteinuria (urinary protein excretion, ≥300 mg per 24 hours) in the 682 women without proteinuria at base line. It was defined according to strict clinical criteria in the 81 women who had proteinuria at base line. The end points were maternal and neonatal outcomes. Results Among the 763 women, 193 (25 percent) had preeclampsia. The frequency of preeclampsia was not affected by the presence of proteinuria at base line (27 percent among women with proteinuria, vs. 25 percent among those without it), but it was greater in women who had had hypertension for at least four years (31 percent vs. 2...