Becoming better health care providers: outcomes of a primary care service-learning project in medical school

Medical educators have begun to embrace service-learning as a method for teaching medical students to be more socially responsible, patient-oriented practitioners. However, research documenting the learning outcomes of service-learning in medical education is limited. In this paper, written documents generated through evaluation of a mandatory, structured community service-learning experience were analyzed qualitatively to discover the diverse learning outcomes among 24 students who participated in the experience. Preliminary findings indicate that students developed skills and attitudes directly related to competencies of concern in most U.S. medical programs. These preliminary findings may help other programs articulate learning outcomes for their service-learning programs. Further, these preliminary findings may stimulate more systematic research (qualitative and quantitative) in this area.     

No news is good news? Press coverage and corporate public affairs management

• Being in the public eye puts pressure on an organization's Public Affairs (PA) function. This study finds that firms more closely covered by the press tend to be more forceful in promoting their own position on social issues (social buffering). Press coverage is not associated with greater corporate efforts to comply with societal expectation (social bridging). Overall, press coverage is weakly associated with lowered perceived corporate public affairs performance.

Copyright © 2006 John Wiley & Sons, Ltd.     

Using knowledge for control in fragmented policy arenas

Analysts and researchers typically value knowledge for its contributions to the wisdom of policy action. Policymakers, however, typically value knowledge for its contributions to the exercise of political control. Our research on flows of knowledge among federal, state, and local education agencies documents how knowledge may increase the effectiveness of various control strategies. In these cases, knowledge is not intended to enhance rationality; it may or may not. It is intended to enhance control, and it does. Knowledge for control is particularly useful to policymakers who seek to intervene in policy arenas characterized by fragmented authority and widely dispersed resources.     

Optimization of the separation of organic explosives by capillary electrophoresis with artificial neural networks

The separation of 12 explosives by capillary electrophoresis was optimized with the aid of artificial neural networks (ANNs). The selectivity of the separation was manipulated by varying the concentration of sodium dodecyl sulfate (SDS) and the pH of the electrolyte, while maintaining the buffer concentration at 10 mM borate. The concentration of SDS and the electrolyte pH were used as input variables and the mobility of the explosives were used as output variables for the ANN. In total, eight experiments were performed based on a factorial design to train a variety of artificial neural network architectures. A further three experiments were required to train ANN architectures to adequately model the experimental space. A product resolution response surface was constructed based on the predicted mobilities of the best performing ANN. This response surface pointed to two optima; pH 9.0-9.1 and 60-65 mM SDS, and pH 8.4-8.6 and 50-60 mM SDS. Separation of all 12 explosives was achieved at the second optimum. The separation was further improved by changing the capillary to an extended cell detection window and reducing the diameter of the capillary from 75 microm to 50 microm. This provided a more efficient separation without compromising detection sensitivity.