The bipolar view in preference modeling distinguishes between negative and positive preferences. Negative preferences correspond to what is rejected, considered unacceptable, while positive preferences correspond to what is desired. But what is tolerated (i.e., not rejected) is not necessarily desired. Both negative and positive preferences can be a matter of degree. Bipolar preferences can be ...

This paper describes a comparative study into the use of audio versus text as a form of feedback on student assignments. Many educational institutions currently use typewritten feedback, but developments in technology now make the provision of feedback in audio form a feasible proposition. The expansion of Higher Education has meant that creating conventional typewritten feedback can be very ti...

We offer evidence that exposures to consumption growth and volatility are significantly priced in the cross-section of delta-hedged option returns. Consumption commands a positive risk premium, whereas negative premium. Our results suggest provide rational foundations for well-known relations between options moneyness or idiosyncratic underlying-stock Furthermore, those premiums can also price ...

OBJECTIVE This study aimed to explore the value of individualized feedback on performance, flow and self-efficacy during simulated laparoscopy. Furthermore, we wished to explore attitudes towards feedback and simulator training among medical students. METHODS Sixteen medical students were included in the study and randomized to laparoscopic simulator training with or without feedback. A teach...

2015 2 Acknowledgements I am grateful for the continuous support and guidance of my advisor, Jimmy Roberts. I would also like to thank Professors Michelle Connolly and Tracy Falba for their helpful feedback and revisions as my honors seminar instructors. Finally, I would like to acknowledge my classmates in my honors seminar for their valuable comments during class presentations. Abstract In an...

Abstroct Fine cobalt and silver powders have been ball-milled to yield a granular solid of composition CoSoAg7a in the form of coarse powder. The material is an intimate mixture of grains of fcc CO in a silver matrix. The cobalt is in the single-domain size range, and the samples exhibit coercivity (0.07 T at 296 K) and unusual thermomagnetic effects , including field-induced unidirectional ani...

Based on data from a large-scale sales campaign on eBay, I show that successful auction customers punish the seller through unfavorable public feedback when they later learn about a cheaper fixed price offer. The probability of such feedback is four times as big for auction customers as for customers who bought the same item from the same seller for the fixed price. Remarkably, this probability...

Foam materials based on metal and several polymers were transformed so that their cellular architectures became re-entrant, ie. with inwardly protruding cell ribs. Foams with re-entrant structures exhibited negative Poisson's ratios as well as greater resilience than conventional foams. Foams with negative Poisson's ratios were prepared using different techniques and materials and their mechani...

This paper demonstrates and discusses an ongoing teaching and research investigation concentrated on the development of computational mechanisms in the early conceptual design stage as part of architectural adaptation and interaction process. In order to achieve this, computational design strategies are developed involving human behavior physical conditions, which result real time design possib...

recent interaction studies havefocused on the relationship between interactional feedback and l2 development.despite the large body of knowledge in this regard, few studies have examinedlearners’ preferences for interactional feedback. besides, different findingshave been reported concerning learners’ preferences for feedback and none hasexamined the factors accounting for the variation in the ...