Jiunde Lee - Academia.edu (original) (raw)

Papers by Jiunde Lee

Purpose-A new design concept, playability, has emerged and been advocated as a decisive factor fo... more Purpose-A new design concept, playability, has emerged and been advocated as a decisive factor for players' gameplay experiences. The present study intends to identify what playability factors might affect players' gaming experiences, particularly from the perspective of individual motivation. Design/methodolgy/approach-According to the game heuristics and playability design guidelines, the present study developed and managed a wide-scale survey to investigate the determinants of playability, reflecting hardcore and casual players' RPG gaming experiences. Finding-The survey results revealed that the Gameplay dimension is primary decisive factor leading players to value the playability of an online role-playing game, following by Game Interface and then Game Mechanics. From the hardcore players' point of view, Gameplay is definitely more important than Game Interface, while Game Interface is equally important to Game Mechanics. From the casual players' point of vi...

Instant Messenger is a social media which is focused on communication. The aim of system is to en... more Instant Messenger is a social media which is focused on communication. The aim of system is to enhance relationships of acquaintances. Stickers of Instant Messenger are popular with persons, so there is a big business opportunity in the design market of the stickers. The main findings are as follows: the impact of social context and personality toward the usage of stickers in Instant Messenger are significant. Persons use the most of stickers in chat contexts, and persons use the fewest of stickers in business contexts. Furthermore, high extraversion persons use more stickers than low extraversion persons. In business contexts, high extraversion and low neuroticism persons use more stickers than low extraversion and high neuroticism persons. The most usage of sticker is emotion type, the second are atmosphere and personality type, appearance and story type are used the least.

Journal of the American Society for Information Science and Technology, 2008

The increasing spread of Internet technology has highlighted the need for a better understanding ... more The increasing spread of Internet technology has highlighted the need for a better understanding of the fundamental issues concerning human users in a virtual space. Despite the great degree of navigational freedom, however, not all hypermedia users have the capability to locate information or assimilate internal knowledge. Research findings suggest that this type of problem could be solved if users were able to hold a cognitive overview of the hypermedia structure. How a learner can acquire the correct structural knowledge of online information has become an important factor in learning performance in a hypermedia environment. Variables that might influence learners' abilities in structuring a cognitive overview, such as users' cognitive styles and the different ways of representing information, should be carefully taken into account. The results of this study show that the interactions between information representation approaches and learners' cognitive styles have significant effects on learners' performance in terms of structural knowledge and feelings of disorientation. Learners' performance could decline if a representational approach that contradicts their cognitive style is used. Finally, the results of the present study may apply only when the learner's knowledge level is in the introductory stage. It is not clear how and what type of cognitive styles, as well as information representation approaches, will affect the performance of advanced and expert learners.

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We studied the time course of change in F-actin content, F-actin distribution, and cell shape aft... more We studied the time course of change in F-actin content, F-actin distribution, and cell shape after fMLP stimulation. F-actin content was quantified by fluorescence activated cell sorter analysis of nitrobenzoxadiazole-phallacidin-stained cells (Howard, T. H., 1982, J. Cell Biol., 95(2, Pt. 2:327a). F-actin distribution and cell shape were determined by analysis of fluorescence photomicrographs of nitrobenzoxadiazole-phallacidin-stained cells. After fMLP stimulation at 25°C, there is a rapid actin polymerization that is maximal (up to 2.0 times the control level) at 45 s; subsequently, the F-actin depolymerizes to an intermediate F-actin content 5-10 rain after stimulation. The depolymerization of F-actin reflects a true decrease in F-actin content since the quantity of probe extractable from cells also decreases between 45 s and 10 min. The rate of actin polymerization (3.8 + 0.3-4.4 + 0.6% increase in F-actin/s) is the same for 10-t°-10-6 M fMLP and the polymerization is inhibited by cytochalasin D. The initial rate of F-actin depolymerization (6.0 + 1.0-30 + 5% decrease in F-actin/min) is inversely proportional to fMLP dose. The F-actin content of stimulated cells at 45 s and 10 min is greater than control levels and varies directly with fMLP dose. F-actin distribution and cell shape also vary as a function of time after stimulation. 45 s after stimulation the cells are rounded and Factin is diffusely distributed; 10 min after stimulation the cell is polarized and F-actin is focally distributed. These results indicate that (a) actin polymerization and depolymerization follow fMLP stimulation in sequence, (b) the rate of depolymerization and the maximum and steady state F-actin content but not the rate of polymerization are fMLP dose dependent, and (c) concurrent with F-actin depolymerization, F-actin is redistributed and the cell changes shape. Actin is an essential element of the cytoskeleton in nonmuscle cells. Most nonmuscle cells express various motile behaviors, e.g., cytokinesis, locomotion, secretion, and endocytosis, which require change in cell shape and remodeling of the cellular cytoskeleton (1). Restructuring of the cytoskeleton is accomplished in part by modulation of the state of actin polymerization in the ceil. Changes in the state of actin polymerization in nonmuscle cells can be induced by external stimuli or by alterations in the functional state of the cell, and these cytoskeletal changes correlate with quantitative changes in the motile behavior of cells (2-6). The correlations suggest that changes in the state of actin polymerization are required for complex motile behaviors such as platelet aggregation (3, 4) and neutrophil chemotaxis (2, 7). In most cases, change in motility is associated with actin polymerization as evidenced by an increase in F-actin or a decrease in G-actin (2-4, 7, 8). To date little is known about the relevance of F-actin depolymerization to changes in the motility of nonmuscle cells. Although the state of actin polymerization changes in nonmuscle cells and much is known about the ionic and protein factors that regulate the state of polymerization of purified actin in vitro (1, 9), little is known about the molecular mechanisms within cells that regulate actin polymerization and depolymerization. In this paper we report studies on the

... It is hypothesized that learners' cognitive styles and two types of structure cues c... more ... It is hypothesized that learners' cognitive styles and two types of structure cues could affect ... Learners' cognitive characteristics play a central role in the regulation of learning processes. ... feel that it is essential for educators to beware of the differences of individual cognitive styles ...

Canadian Journal of Learning and Technology / La revue canadienne de l’apprentissage et de la technologie

EJ552563 - Navigating Backward: Concrete vs. Abstract Representation in Hypertext Buttons.

Lecture Notes in Computer Science, 2016

Problem-based learning (PBL), initiated when learners meet the problem scenarios, develops learne... more Problem-based learning (PBL), initiated when learners meet the problem scenarios, develops learners' skills and subject matter content to make the transition from beginner to more expert problem solver. Beginning students might benefit from simple, well-structured problems, in which the understanding of sets of rules and principles results in a straightforward solution. Facilitators might consider providing learners with more experience with complex, ill-structured problems. However, seldom have reports provided PBL facilitators the solutions for how to design or select problem scenarios so that they open the door to significant learning outcomes consistent with course or program goals. The gray area between well-structured problems and ill-structured problems needs to be further clarified for better learning effect. After a brief literature review, the author outlines a decision model for problem selection that addresses three dimensions: (1) conditions, including learning objectives, prerequisite skills and knowledge, available time, and presentation formats; (2) methods, including the simplifying conditions method and the problem-stimulated/student-centered strategy; and (3) outcomes for well-structured and ill-structured problems. The conclusion suggests that a PBL facilitator should consider the learning strategies both systematically and systemically. Future research is required to further develop this decision model. (Contains 29 references.) (MES) Reproductions supplied by EDRS are the best that can be made from the original document.

Proceedings of the 15th international conference on Human-computer interaction with mobile devices and services - MobileHCI '13, 2013

Interacting with Computers, 2007

... As Vaske and Grantham (1990) suggest, the difficulties of learning in a computer-based enviro... more ... As Vaske and Grantham (1990) suggest, the difficulties of learning in a computer-based environment are caused by the discrepancies between (a) individual mental representations and cognitive styles and (b) the given operations of the scope of ...

Lecture Notes in Computer Science, 2009

The study explores how the design of quest types and different players' gaming motivations might ... more The study explores how the design of quest types and different players' gaming motivations might affect knowledge acquisitions in an online role-playing game environment. An experiment was conducted to collect data. The results showed that "immersion motivation" had the most significant influence on knowledge acquisitions. The bounty-collection quest significantly affected the procedure knowledge of subjects with high immersion motivation, whereas the fed express quest affected declarative knowledge of subjects with high immersion motivation.

Journal of The American Society for Information Science and Technology, 2008