Browsing by Author "Pan, Wei"

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    Effect of family cohesion on symptom distress during hematopoietic stem cell transplantation
    (Springer, 2022-02) Yang, Yesol; Pan, Wei; Farag, Sherif S.; Von Ah, Diane; Medicine, School of Medicine
    Purpose Family may play an important role in hematopoietic stem cell transplantation (HSCT) recovery; however, little is known about the effect of family functioning on an individual’s health. The purpose of this study was to examine the effect of family cohesion (family functioning) on the trajectory of HSCT recipients’ symptom distress (symptom frequency and symptom bother) before, during, and after HSCT. Methods Secondary analysis was conducted using data collected from178 individuals who underwent HSCT. Longitudinal parallel process (LPP) modeling was used to examine how family cohesion and HSCT-associated symptoms (symptom frequency and symptom bother) change over time, and how these longitudinal changes relate to each other. Results The trajectory of family cohesion predicted the trajectories of HSCT-associated symptom frequency and bother. HSCT recipients who experienced higher family cohesion at baseline (T1) showed lower symptom frequency (p < .01) as well as symptom bother (p < .01) at T1. This trajectory analysis also showed that HSCT recipients who had improved family cohesion over time reported decrease in symptom frequency (p < .01) as well as bother (p < .01) over time. Conclusion Findings indicate that higher family cohesion predicts decrease in symptom distress over the HSCT trajectory. Interventions aimed at enhancing family cohesion have the potential to lower HSCT recipients’ symptom distress. Further research is needed to understand the critical role of family cohesion and family functioning and their relationship with HSCT symptom distress prevention, early detection, and risk stratification.
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    The WADER Environment: Facilitating Systematic Design of Touchless Interactions with Wall-sized Displays
    (Office of the Vice Chancellor for Research, 2013-04-05) Pan, Wei; Chattopadhyay, Debaleena
    Meeting rooms, design studios, and laboratories in the industry as well as academia are increasingly adopting ultra-large, Wall-Size Displays (WSD). Such adoption is expected only to increase due to the dropping cost of large display technology and the growing need to visualize large volumes of data. To facilitate interaction and collaboration around WSDs, next-generation interaction modalities like touchless have opened up new, unprecedented opportunities. Yet to explore this uncharted design space, there is a lack of controlled, experimental environments that can support rapid and flexible design iterations and user-evaluations of touchless interaction techniques. To address this problem, we propose the Wall Display Experience Research (WADER) environment, a reliable, reusable and easily modifiable experimental environment that supports user studies on touchless interaction prototypes. The current deployment of WADER leverages off-the-shelf markerless sensors, Kinect™ and the 160” X 60”, ultra-high resolution, wall-sized display (15.3 million pixels) available at UITS in IUPUI. By varying design parameters, WADER enables batteries of experiments to be carried out very quickly and efficiently. It evaluates user experience by recording performance metrics. In a time span of one month, we have successfully conducted an 18-participant empirical study to investigate alternate visual feedback designs for touchless selection and movement tasks. During this study, we iteratively designed and incrementally developed prototypes for different design alternatives and conducted eight empirical experiments. In a more-recent RSFG-funded project, HCI researchers are leveraging WADER to explore and evaluate novel interaction techniques to enhance collaboration on WSDs in a context, where users are sitting comfortably at a distance from the display. The establishment of WADER environemnt is a significant step towards fast pacing the iterative design of touchless user interactions for the next-generation of wall-display interfaces.