2,731 research outputs found

    Interview with Lloyd Watkins, President Emeritus

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    Oral history interview with Illinois State University Emeritus President Lloyd Watkins. The interview was conducted on January 23, 2007, by Kate O\u27Toole, as part of the Illinois State University Oral History Project.https://ir.library.illinoisstate.edu/soh/1013/thumbnail.jp

    An appreciation of the prescience of Don Gilbert (1930‐2011): master of the theory and experimental unraveling of biochemical and cellular oscillatory dynamics

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    We review Don Gilbert's pioneering seminal contributions that both detailed the mathematical principles and the experimental demonstration of several of the key dynamic characteristics of life. Long before it became evident to the wider biochemical community, Gilbert proposed that cellular growth and replication necessitate autodynamic occurrence of cycles of oscillations that initiate, coordinate, and terminate the processes of growth, during which all components are duplicated and become spatially re‐organized in the progeny. Initiation and suppression of replication exhibit switch‐like characteristics: i.e., bifurcations in the values of parameters that separate static and autodynamic behavior. His limit cycle solutions present models developed in a series of papers reported between 1974 and 1984, and these showed that most or even all of the major facets of the cell division cycle could be accommodated. That the cell division cycle may be timed by a multiple of shorter period (ultradian) rhythms, gave further credence to the central importance of oscillatory phenomena and homeodynamics as evident on multiple time scales (seconds to hours). Further application of the concepts inherent in limit cycle operation as hypothesized by Gilbert more than 50 years ago are now validated as being applicable to oscillatory transcript, metabolite and enzyme levels, cellular differentiation, senescence, cancerous states, and cell death. Now, we reiterate especially for students and young colleagues, that these early achievements were even more exceptional, as his own lifetime's work on modeling was continued with experimental work in parallel with his predictions of the major current enterprises of biological research

    Re-configurable, multi-channel, high-speed FBG strain sensing system for vibration analysis in oil risers

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    Eight re-configurable, synchronized resonant cavity time-division- multiplexed FBG sensor interrogators provide 16,800 high-resolution measurements-per-second from 280 axially embedded strain sensors, for the analysis of vortex-shedding-induced vibration and bending in a composite oil riser pipe

    Consumer Showrooming::Value Co-destruction

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    Purpose This research employs value co-destruction as a theoretical lens to investigate the antecedents of consumer showrooming behavior. Drawing on relevant literature, a research model specifying showrooming dynamics from the consumer’s perspective is conceptualized and empirically tested. Methodology Utilizing survey data from 275 consumers, structural equation modelling is employed to assess a research model including thirteen hypotheses. Findings The study findings reveal that showrooming behavior is complex and comprises differing degrees of accumulative value co-destruction and value co-creation behavior across online and offline channels. Specifically, consumer characteristics, channel characteristics and product characteristics are shown to be associated with in-store value taking and online value co-destruction and co-creation. Originality and Value Scholarly insights into the antecedents of consumer showrooming are rare. In responding to calls for research, this paper represents the first empirical investigation of consumer showrooming behavior utilizing the lens of value co-destruction. The study adds to academic understanding of the showrooming phenomena and demonstrates that co-destructive and co-creative behaviors can occur in a simultaneous, concurrent and iterative fashion. Focusing on practice, the findings reveal opportunities for experience-led shopping environments

    Differences in Orgasm Frequency Between Gay, Lesbian, Bisexual, and Heterosexual Men and Women in a U.S. National Sample

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    There is a notable gap between heterosexual men and women in frequency of orgasm during sex. Little is known, however, about sexual orientation differences in orgasm frequency. We examined how over 30 different traits or behaviors were associated with frequency of orgasm when sexually intimate during the past month. We analyzed a large US sample of adults (N = 52,588) who identified as heterosexual men (n = 26,032), gay men (n = 452), bisexual men (n = 550), lesbian women (n = 340), bisexual women (n = 1112), and heterosexual women (n = 24,102). Heterosexual men were most likely to say they usually-always orgasmed when sexually intimate (95%), followed by gay men (89%), bisexual men (88%), lesbian women (86%), bisexual women (66%), and heterosexual women (65%). Compared to women who orgasmed less frequently, women who orgasmed more frequently were more likely to: receive more oral sex, have longer duration of last sex, be more satisfied with their relationship, ask for what they want in bed, praise their partner for something they did in bed, call/email to tease about doing something sexual, wear sexy lingerie, try new sexual positions, anal stimulation, act out fantasies, incorporate sexy talk, and express love during sex. Women were more likely to orgasm if their last sexual encounter included deep kissing, manual genital stimulation, and/or oral sex in addition to vaginal intercourse. We consider sociocultural and evolutionary explanations for these orgasm gaps. The results suggest a variety of behaviors couples can try to increase orgasm frequency
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