Bardhan I.R.,University of Texas at Dallas |
Kannan P.K.,University of Maryland College Park |
Kauffman R.,Arizona State University |
Sougstad R.,Augustana College at Sioux Falls
Journal of Management Information Systems | Year: 2010
The increasing importance of information technology (IT) services in the global economy prompts researchers in the field of information systems (IS) to give special attention to the foundations of managerial and technical knowledge in this emerging arena of knowledge. Already we have seen the computer science discipline embrace the challenges of finding new directions in design science toward making services-oriented computing approaches more effective, setting the stage for the development of a new science - service science, management, and engineering (SSME). This paper addresses the issues from the point of view of service science as a fundamental area for IS research. We propose a robust framework for evaluating the research on service science, and the likely outcomes and new directions that we expect to see in the coming decade. We emphasize the multiple roles of producers and consumers of services-oriented technology innovations, as well as value-adding seller intermediaries and systems integrators, and standards organizations, user groups, and regulators as monitors. The analysis is cast in multidisciplinary terms, including computer science and IS, economics and finance, marketing, and operations and supply chain management. Evaluating the accomplishments and opportunities for research related to the SSME perspective through a robust framework enables in-depth assessment in the present, as well as an ongoing evaluation of new knowledge in this area, and the advancement of the related management practice capabilities to improve IT services in organizations. © 2010 M.E. Sharpe, Inc.
Scudder M.R.,University of Illinois at Urbana - Champaign |
Lambourne K.,University of Kansas Medical Center |
Drollette E.S.,University of Illinois at Urbana - Champaign |
Herrmann S.D.,Augustana College at Sioux Falls |
And 3 more authors.
Medicine and Science in Sports and Exercise | Year: 2014
PURPOSE: The current study examined the relationship between children's performance on the Progressive Aerobic Cardiovascular Endurance Run subtest of the FitnessGram® and aspects of cognitive control that are believed to support academic success. METHODS: Hierarchical linear regression analyses were conducted on a sample of second-and third-grade children (n = 397) who completed modified versions of a flanker task and spatial n-back task to assess inhibitory control and working memory, respectively. RESULTS: Greater aerobic fitness was significantly related to shorter reaction time and superior accuracy during the flanker task, suggesting better inhibitory control and the facilitation of attention in higher-fit children. A similar result was observed for the n-back task such that higher-fit children exhibited more accurate target detection and discrimination performance when working memory demands were increased. CONCLUSIONS: These findings support the positive association between aerobic fitness and multiple aspects of cognitive control in a large sample of children, using a widely implemented and reliable field estimate of aerobic capacity. Importantly, the current results suggest that this relationship is consistent across methods used to assess fitness, which may have important implications for extending this research to more representative samples of children in a variety of experimental contexts. © 2014 by the American college of Sports Medicine.
Brown A.E.,College of the Ozarks |
Eichler B.E.,Augustana College at Sioux Falls
Tetrahedron Letters | Year: 2011
Bis(tri-n-butylstannyl)acetylene was synthesized and used to create a series of symmetric diarylacetylenes via a one-step Stille coupling protocol with Pd(PPh 3) 4 as the catalyst. In many cases, the product simply crystallized in good yields from the reaction mixture upon cooling after reflux at 100 °C or upon removal of solvent. The diarylacetylenes were studied using UV-vis and fluorescence spectroscopies, which showed that naphthyl- and biphenyl-substituted acetylenes had very high solution-state fluorescence quantum yields. © 2011 Elsevier Ltd. All rights reserved.
Lee Y.J.,Arizona State University |
Kauffman R.J.,Singapore Management University |
Kauffman R.J.,Dartmouth College |
Sougstad R.,Augustana College at Sioux Falls
Decision Support Systems | Year: 2011
When a customer interacts with a firm, extensive personal information often is gathered without the individual's knowledge. Significant risks are associated with handling this kind of information. Providing protection may reduce the risk of the loss and misuse of private information, but it imposes some costs on both the firm and its customers. Nevertheless, customer information security breaches still may occur. They have several distinguishing characteristics: (1) typically it is hard to quantify monetary damages related to them; (2) customer information security breaches may be caused by intentional attacks, as well as through unintentional organizational and customer behaviors; and (3) the frequency of such incidents typically is low, although they can be very costly when they occur. As a result, predictive models and explanatory statistical analysis using historical data have not been effective. We present a profit optimization model for customer information security investments. Our approach is based on value-at-risk methods and operational risk modeling from financial economics. The main results of this work are that we: (1) provide guidance on the trade-offs between risk and return in customer information security investments; (2) define the range of efficient investments in technology-supported risk indemnification for sellers; (3) model how to handle government-dictated levels of investment versus self-regulation of investments in technology; and (4) characterize customer information security investment levels when the firm is able to pass some of its costs on to consumers. We illustrate our theoretical findings with empirical data from the Open Security Foundation, as a means of grounding our analysis and offering the reader intuition for the managerial interpretation of our theory and main results. The results show that we can narrow the decision set for solution providers and policy-makers based on the estimable risks and losses associated with customer information security. We also discuss the application of our approach in practice. © 2011 Elsevier B.V. All rights reserved.
Wachira J.K.,University of South Dakota |
Larson M.K.,Augustana College at Sioux Falls |
Harris W.S.,University of South Dakota |
Harris W.S.,Health Diagnostic Laboratory |
Harris W.S.,OmegaQuant Analytics LLC
British Journal of Nutrition | Year: 2014
n-3 Fatty acids (EPA and DHA, from fish oil) are essential fatty acids that are approved for the treatment of severe hypertriacylglycerolaemia and, in some countries, used for reducing the risk of CVD. Because of their inhibitory effects on platelet function, some practitioners have, perhaps unnecessarily, discontinued their use in patients undergoing invasive procedures or being treated with anti-platelet or anticoagulation drugs. Thus, the aim of the present study was to review the effects of n-3 fatty acids on bleeding complications in a wide variety of clinical settings, and to summarise their biochemical mechanism of action in platelet function and coagulation. We surveyed recent publications that either directly studied the effects of n-3 fatty acids on the risk of bleeding or focused on different end-points and also reported the effects on bleeding. n-3 Fatty acid treatment had no effect on the risk of clinically significant bleeding in either monotherapy or combination therapy settings. Although originally believed to operate primarily via the cyclo-oxygenase system, these fatty acids have been shown to affect multiple signalling pathways and thrombotic processes beyond simply affecting platelet aggregation. The present overview found no support for discontinuing the use of n-3 fatty acid treatment before invasive procedures or when given in combination with other agents that affect bleeding. On the contrary, the use of these fatty acids in several settings improved clinical outcomes. Copyright © The Authors 2014.
Willis E.A.,University of Kansas Medical Center |
Herrmann S.D.,Augustana College at Sioux Falls |
Honas J.J.,University of Kansas Medical Center |
Lee J.,Texas Tech University |
And 2 more authors.
Medicine and Science in Sports and Exercise | Year: 2014
Purpose: This study aimed to examine compensatory changes in nonexercise energy expenditure (NEEx) and nonexercise physical activity (NEPA) in response to an aerobic exercise training program.Methods: Ninety-two overweight/obese (body mass index, 25-39.9 kgIm-2) sedentary young adults (18-30 yr) completed a 10-month randomized clinical efficacy trial of aerobic exercise 5 dIwk-1 at either 400 kcal per session (n = 37), 600 kcal per session (n = 37), or control (n = 18). Total daily energy expenditure (TDEE) and resting metabolic rate (RMR) were measured at months 0 and 10. NEPA was measured by an accelerometer at months 0, 3.5, 7, and 10. NEEx was calculated by the following formula: [(total daily energy expenditure × 0.9) - RMR] - net EEEx (EEEx-RMR). Mixed modeling was used to examine differences between groups (group effect), within groups (time effect), and group-time interaction for NEEx and NEPA.Results: Within the exercise groups, there were no significant effects (all P > 0.05) of group, time, or group-time interaction for NEPA. In addition, there were no significant within- or between-group differences for change in NEEx. However, activity counts per minute were significantly higher (P ≤ 0.001) in the 600-kcal-per-session group (346 ± 141 minId-1) versus controls (290 ± 106 minId-1) at month 7 and significantly higher (P ≤ 0.001) in both the 600-kcal-per-session (345 ± 163 minId-1) and 400-kcal-per-session groups (317 ± 146 minId-1) versus controls (277 ± 116 minId-1) at 10 months.Conclusions: A 10-month aerobic exercise training program in previously sedentary, overweight and obese young adults was not associated with compensatory decreases in NEEx or NEPA. Results suggest that overweight and obese individuals do not become less physically active or spend more time in sedentary pursuits in response to exercise. Copyright © 2014 by the American College of Sports Medicine.
Alton A.,Augustana College at Sioux Falls
Proceedings of the 15th Lomonosov Conference on Elementary Particle Physics: Particle Physics at the Tercentenary of Mikhail Lomonosov | Year: 2013
New results from the CDF and D0 experiments in the topics of QCD and Electroweak physics are presented. We focus on results with photons and multiple bosons in the final state. © 2013 by World Scientific Publishing Co. Pte. Ltd.
Karr L.P.,Augustana College at Sioux Falls
Quaternary International | Year: 2015
The remains of Terminal Pleistocene megafauna in North America represent a continent-wide case study in understanding the taphonomic processes that affect bones, and the use and reuse of bones among some of North America's earliest inhabitants. The complex dynamics of bone fracture, bone degradation, and the effects of natural and cultural taphonomic processes present a challenge for interpreting the nature of fractured and fragmented zooarchaeological material in North America. The role of the environment in affecting bones and their suitability for use and reuse is profound. Natural processes affect the preservation of bones and their suitability for use, which presents an interpretive challenge for archaeologists examining fractured and fragmented remains. This paper seeks to explain, describe, and resolve some of the problems inherent in assessing and understanding the use and reuse of bones as raw materials, using evidence from two Terminal Pleistocene sites in North America (Owl Cave in Idaho, and the Inglewood site in Maryland) as case studies that highlight the cultural, environmental, and interpretive differences that are manifest in zooarchaeological (and paleontological) assemblages. © 2015.
Barkley S.A.,Augustana College at Sioux Falls |
Fahrenwald N.L.,South Dakota State University
Behavioral Medicine | Year: 2013
Adherence to independent exercise is an essential outcome of cardiac rehabilitation (CR), yet limited theory-based interventions to improve adherence exist. This study tested the effects of an intervention based on Bandura's conceptualization of self-efficacy. The self-efficacy coaching intervention (SCI), a supplement to standard care, was designed to increase self-efficacy for independent exercise and independent exercise behavior in CR. We examined whether the SCI vs. attention control (AC) resulted in improved exercise self-efficacy (ESE), barriers self-efficacy (BARSE), and minutes of independent exercise for CR participants (n = 65). While between-group differences did not reach significance (p >.10) for any of the outcome measures, significant within-group changes were noted in BARSE scores and independent exercise (p <.001) for the SCI group. Change in independent exercise for the AC group was also significant (p =. 006). Further study is needed to explore whether short-term changes translate into maintenance of independent exercise participation after program completion. © 2013 Copyright Taylor and Francis Group, LLC.
Dulitz M.,Augustana College at Sioux Falls
South Dakota medicine : the journal of the South Dakota State Medical Association | Year: 2013
This research investigates the health and health insurance status of South Dakota farmers before the onset of the Affordable Care Act of 2010 (ACA) health insurance mandate set to begin Jan. 1, 2014. After Institutional Review Board (IRB) approval, surveys were sent to 1,400 randomly selected rural addresses in nine South Dakota counties. The surveys used both qualitative and quantitative means to inquire about the health usage, status and insurance status. Quantitative data were analyzed using Statistical Package for the Social Sciences (SPSS), and qualitative data were analyzed for thematic content. With an overall return of 205 surveys (135 farmers), the rate of insurance was 90.6 percent. Four-fifths of farmers (80.2 percent) reported having an established provider, and 84.6 percent reported visiting a provider in the past year. Those with non-group insurance coverage were significantly more likely to report using high deductibles and limiting insurance use due to cost, but maintained a high self-reported health and preventative care use. Farmers under 50 had significantly higher rates of decreasing usage and increasing deductibles in order to afford coverage. Farmers over 65 had high health care utilization. Farmers ages 51-64 had both a high rate of using strategies to cut cost along with having an increasing utilization of care. Qualitative themes included concerns about obtaining health insurance, high deductibles and lack of coverage. The health insurance and usage among farmers is high. Farmers ages 51-64 experience increased burden due to increasing health care needs along with need for health insurance coverage. Respondent comments suggest concern with increasing rates and financial loss.