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.

Investor activism, managerial responsiveness, and corporate social performance

Abstract: We study relationships between shareholder proposal activism, managerial response, and corporate social performance (CSP). We find that shareholder proposal activism reduces CSP. We infer that rather than pressuring firms to improve CSP, activism may engender diversion of resources away from CSP into political activities used by managers to resist external pressures and retain discretion. We also find that managers are more likely to settle proposals filed by ‘salient’ shareholders (i.e., those with power, legitimacy, and urgency). Settlement with salient shareholders, however, also reduces CSP, suggesting that managers’ responses are symbolic; i.e., they settle with salient shareholders to demonstrate conformance but continue to resist making the substantive changes to core policies that may compromise their discretion. Copyright  2007 John Wiley & Sons, Ltd.

Sources of Power: Their Impact on Intrachannel Conflict:

Abstract: The sources of power that auto manufacturers use to obtain control over their dealer network are shown to have a significant impact on the level of conflict that dealers have with their manufacture...

A review on wearable photoplethysmography sensors and their potential future applications in health care.

Abstract: Photoplethysmography (PPG) is an uncomplicated and inexpensive optical measurement method that is often used for heart rate monitoring purposes. PPG is a non-invasive technology that uses a light source and a photodetector at the surface of skin to measure the volumetric variations of blood circulation. Recently, there has been much interest from numerous researchers around the globe to extract further valuable information from the PPG signal in addition to heart rate estimation and pulse oxymetry readings. PPG signal's second derivative wave contains important health-related information. Thus, analysis of this waveform can help researchers and clinicians to evaluate various cardiovascular-related diseases such as atherosclerosis and arterial stiffness. Moreover, investigating the second derivative wave of PPG signal can also assist in early detection and diagnosis of various cardiovascular illnesses that may possibly appear later in life. For early recognition and analysis of such illnesses, continuous and real-time monitoring is an important approach that has been enabled by the latest technological advances in sensor technology and wireless communications. The aim of this article is to briefly consider some of the current developments and challenges of wearable PPG-based monitoring technologies and then to discuss some of the potential applications of this technology in clinical settings.

Microbial mediation of carbon-cycle feedbacks to climate warming

Abstract: A study based on a long-term manipulation experiment in a grassland ecosystem describes the microbial mechanisms controlling feedbacks to carbon and nutrient cycling under warming. The findings suggest that ecosystem models should more explicitly consider microbial feedbacks to climate change.