Recent Submissions

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AnkleImage - An ultrafast ultrasound image dataset to understand the ankle joint muscle contractility
(2024) Zhang, Qiang; Akinniyi, Oluwasegun
The role of the human ankle joint in activities of daily living, including walking, maintaining balance, and participating in sports, is of paramount importance. Ankle joint dorsiflexion and plantarflexion functionalities mainly account for ground clearance and propulsion power generation during locomotion tasks, where those functionalities are driven by the contraction of ankle joint skeleton muscles. Studies of corresponding muscle contractility during ankle dynamic functions will facilitate us to better understand the joint torque/power generation mechanism, better diagnose potential muscular disorders on the ankle joint, or better develop wearable assistive/rehabilitative robotic devices that assist in community ambulation. This data descriptor reports a new dataset that includes the ankle joint kinematics/kinetics, associated muscle surface electromyography, and ultrafast ultrasound images with various annotations, such as pennation angle, fascicle length, tissue displacements, echogenicity, and muscle thickness, of ten healthy participants when performing volitional isometric, isokinetic, and dynamic ankle joint functions (walking at multiple treadmill speeds, including 0.50 m/s, 0.75 m/s, 1.00 m/s, 1.25 m/s, and 1.50 m/s). Data were recorded by a research-use ultrasound machine, a self-designed ankle testbed, an inertia measurement unit system, a Vicon motion capture system, a surface electromyography system, and an instrumented treadmill. The descriptor in this work presents the results of a data curation or collection exercise from previous works, rather than describing a novel primary/experimental data collection.
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When Empirical Contributions are More Important Than Theoretical Contributions
(ECIS, 2024) Siponen, Mikko; Jiang, Hemin; Klaavuniemi, Tuula
Making a theoretical contribution (TC) is a common requirement for the top Information Systems (IS) journals. We argue that the role of TC is misunderstood in IS. In IS, TC is a requirement for paper acceptance. However, TC should be required at the level of research programs. In fact, research programs commonly require studies where the contribution is empirical, and TC comes later. Empirical contributions include (i) obtaining stronger empirical tests, (ii) finding anomalies, (iii) examining a long-term effect or result, and (iv) comparing their effect with rival theories. To repair the situation, we first argue for requiring TC at the level of research programs. We then propose that IS community should recognize studies (e.g., i–iv) in which the nature of contribution is empirical, and TC comes later. We further suggest that the problems related HARKing (Hypothesizing After Results are Known) is minimized, not by requiring TC, but subjecting the empirical findings to stronger causal tests.
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Adventure Education: Occupational Socialization of Teachers, Ecology, and Participation Styles of Children
(University of Alabama Libraries, 2007) Zmudy, Mark H.
In Western culture, the inclusion of activities in educational settings which could be described as "outdoor and adventurous" dates back perhaps as far as 400 BC (Hunt, 1990). Moreover, adventure education has been included in one form or another in the school and local community/agency curricula of many countries for close to 100 years (Neill, 2004; Outward Bound, 2006).
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Testing the Dominant Mediator in EPPM: An Empirical Study on Household Anti-Malware Software Users
(Elsevier, Inc., 2024) Xie, Yitian; Siponen, Mikko; Laatikainen, Gabriella; Moody, Gregory D.; Zheng, Xiaosong
A key research area in information systems security (ISec) is explaining or improving users’ IS security outcomes via the extended parallel process model (EPPM) lens. While the theoretical construct in emotional valence (e.g., fear) and cognitive valence (e.g., perceived efficacy) were deemed as mediators in previous EPPM-related ISecstudies, existing research has ignored the value of testing and reporting the dominant mediator between the emotional valence and the cognitive valence. In this paper, we reintroduce the theoretical origins of the dominant mediator assumption in EPPM and highlight its merits using the multiple mediation method. Theoretically, we illustrate how testing and reporting the dominant mediator can help identify the dominant mechanism triggering specific behavioral outcomes. Further, this paper questions the dominant mediating role of fear on the behavioral outcome in ISec context. Methodologically, this study proposes to assess the dominant mediator via a multiple mediation model instead of using the discriminant value equation introduced by Witte (1995), Witte et al. (1996) and enhanced by Chen et al. (2021) when testing the EPPM theory in the ISec context.
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Reducing Readmission using the Re-Engineered Discharge: A Quality Improvement Project—Evaluation and Analysis
Zeller, Nicole; Barron, Keri; Jennings, Ryan
Introduction/Purpose: One out of every five patients hospitalized for heart failure (HF)- related complications are readmitted within 30 days of previous admission. Readmission, as a healthcare quality index, provides a metric to investigate strategies to improve HF outcomes. The Re-Engineered Discharge (RED) protocol is a comprehensive transitional care tool created to improve overall patient outcomes and self-efficacy. The purpose of this quality improvement project was to evaluate the RED protocol’s effect on readmission rates in patients admitted with HF at a small, Midwestern hospital. Methods: This project used a convenience sample of adult patients, ages 18 years or older admitted to the hospital with HF during a 60-day period. All patients (N = 7) who met the sample criteria received the RED transitional care protocol delivered by a trained cardiac care nurse. Following the implementation, the researcher performed a chart audit over 30 days to identify readmission status, collect data, and verify the integrity of RED implementation. Results: The readmission rate was 28.6% among the study group, which was above the hospital’s baseline rate of 25.42% in August. The readmission index was 0.91 in the study group versus the hospital’s overall index (1.07). The findings regarding the secondary data was consistent with the literature results that demonstrated increased HF incidence among older adults (age range, 58 - 91), females (four females versus three males), and increased occurrence in higher socio-economic status persons. The most common secondary diagnoses were hypertension (N = 7), osteoarthritis (N = 4), hyperlipidemia (N = 4), atrial fibrillation (N = 3), and diabetes mellitus (N = 3). The protocol fidelity was 100% for all steps, except for the follow up phone call (78%), validated through self-report and chart audit. Discussion: The project does not statistically support use of the RED protocol as a means of reducing readmission; however, the literature continues to support the individual steps of the protocol. Further study is necessary to validate the protocol. This project sought to inform transitional care guidelines in acute care institutions to improve patient outcomes and reduce readmission.