Bowling Green State University

About: Bowling Green State University is a education organization based out in Bowling Green, Ohio, United States. It is known for research contribution in the topics: Population & Poison control. The organization has 8315 authors who have published 16042 publications receiving 482564 citations. The organization is also known as: BGSU.

Upconverted Emission from Pyrene and Di-tert-butylpyrene Using Ir(ppy)3 as Triplet Sensitizer

Abstract: Metal-to-ligand charge-transfer sensitized upconverted fluorescence in noncovalent triplet energy transfer assemblies is investigated using Ir(ppy)3 as the sensitizer (ppy = 2-phenylpyridine) and pyrene or 3,8-di-tert-butylpyrene as the triplet acceptor/annihilator. Upconverted singlet fluorescence from pyrene or 3,8-di-tert-butylpyrene resulting from triplet−triplet annihilation (TTA) is observed following selective excitation of Ir(ppy)3 in deaerated dichloromethane solutions using 450-nm laser pulses. In both systems, the TTA process is confirmed by the near quadratic dependence of the upconverted fluorescence intensity on incident light power, measured by integrating the upconverted delayed fluorescence kinetic traces as a function of incident excitation power. At the relatively high concentrations of pyrene that were utilized, pyrene excimer formation was detected by its characteristic broad emission centered near 470 nm. In essence, selective excitation of Ir(ppy)3 ultimately resulted in the simulta...

Religious coping among diverse religions: Commonalities and divergences.

Abstract: In this article, we review and evaluate the steadily growing body of research on religious coping among diverse religious samples. Comparisons are made between findings generated from Christian samples and those generated from other religious groups. Several conclusions are drawn based on this revie

College students’ incorporation of initiator and restrictor roles in sexual dating interactions

Abstract: According to the traditional sexual script, men are the initiators and women the restrictors of sexual activities (McCormick, Brannigan, & LaPlante, 1984). While recent attitudes have shifted toward a more egalitarian standard (DeLamater & MacCorquodale, 1979) and sexual experiences are becoming more permissive (Finlay, Starnes, & Alvarez, 1985), it is not known whether this has resulted in changes in sexual scripts. Therefore, 50 men and 55 women were used in a self‐monitoring procedure to record three aspects of sexual frequencies: sexual initiations, responses to initiations and considering initiations over a two‐week period. The results indicate that men and women are guided by a similar sexual script with regard to responding to initiations and considering initiations, but not with regard to initiation of sexual activity. Men still initiate sexual activity more frequently than women. It was concluded that men and women still appear to be guided by the traditional sexual script with respect to initiat...

Current perspectives of singlet oxygen detection in biological environments.

Abstract: There is widespread acceptance that singlet oxygen is a key intermediate on one of the pathways leading to the phenomenon of photodynamic action. However, the identification of this moiety within a particular biological system and the determination of a direct link between its presence and a particular photodynamic effect is a goal which photobiologists have hitherto failed to achieve. The aim of this review is to assess the problems associated with such a goal and methods whereby they might be overcome. Initially the general photochemical and environmental factors which govern the ability of a photosensitizer to promote photodynamic action via the intermediacy of singlet oxygen are introduced and the fundamental parameters defining the formation, decay and reactivity of this species summarized. The experimental requirements for relating a particular photodynamic effect to singlet oxygen intermediacy are then analysed and the intrinsic properties of singlet oxygen which will influence this goal are discussed. Having concluded that the singlet oxygen detection method of choice for this purpose is that in which the IR emission at 1269 nm of this molecule is monitored, the advantages and disadvantages of pulsed and continuous wave photoexcitation of cellular systems are analysed. It becomes evident that, no matter what the future improvements in instrumentation are likely to be, the inherent natures of singlet oxygen and the biological system lead to a kinetic situation which will preclude a successful time-resolved solution to this problem. In contrast, experimentation with continuous wave systems holds out significant hope for the future. In particular, the use of phase modulation techniques to overcome background emission problems, the enhancement of photosensitizer optical densities as a consequence of higher extinction coefficients and/or improved photosensitizer delivery systems and the use of high power lasers and/or improved light delivery systems can, at least in principle, lead to the solution of the problem addressed herein.

Ideology, Power, and Equity: Testing Competing Explanations for the Perception of Fairness in Household Labor

Abstract: Les AA. etudient les mecanismes de la perception et de la legitimation, de la division du travail au sein des menages. Ils isolent trois facteurs fondamentaux en ce domaine : l'adhesion a une ideologie traditionnelle de la division sexuelle des roles au sein du couple, les alternatives sociales et professionnelles des femmes vis-a-vis du mariage, l'equite dans les relations entre les partenaires. Ils presentent un certain nombre de donnees collectees aux Etats-Unis entre 1987 et 1988 qui confirment leur importance respective