since solid-phase and liquid-phase microextraction (spme and lpme) were introduced, as effective solvent-free methods, many efforts have been made to improve their modes and applications. however, due to limitations with sensitivity and efficiency, researchers have focused on improving the performance of their basic primary modes. in this way, in recent years, different methods such as ultrason...

conclusions our methods will allow us to determine the prevalence of pediatric cfs and me status in the general community. results we provide two case studies showing the types of data we are collecting, and how the data are being used to inform diagnostic decisions. objectives in the present study, we describe an ongoing nih-funded study which will answer basic epidemiologic pediatric issues f...

Abstract I study the effect of task difficulty on workers’ effort. find that has an inverse-U effort and this is quantitatively large, especially when compared to conditional monetary rewards. Difficulty acts as a mediator rewards: rewards are most effective at intermediate or high levels difficulty. The pattern response inconsistent with many popular models in literature, including Expected Ut...

Although nature may be subtle, our interventional approaches to enhancing myocardial regeneration can be anything but. We genetically re-engineer cells to enhance their potential, reprogram cells from one type to another, apply patches of cells like plaster on a wall, or inject unfathomable numbers of cells hopeful that a small fraction cling to the heart and to life long enough to make a diffe...

In this paper we describe the fundamentals of affective gaming from a physiological point of view, covering some of the origins of the genre, how affective videogames operate and current conceptual and technological capabilities. We ground this overview of the ongoing research by taking an in-depth look at one of our own early biofeedback-based affective games. Based on our analysis of existing...