The next two papers in this issue are, first, a critique of an earlier MIS Quarterly paper by Graeme Shanks, Elizabeth Tansley, Jasmina Nurendini, Daniel Tobin, and Ron Weber, “Representing Part–Whole Relations in Conceptual Modeling: An Empirical Evaluation” (32:3, pp. 553-573), and, second, a response to that critique. As may or may not be clear from the two papers, this represents a continua...

Railguns promise to make space travel and weapons systems much more efficient for the future. I conducted a project to skim the surface of railgun physics and design. I first started by constructing a small railgun as a proof-of-concept. I then delved deeper into the physics of operation by measuring and modeling the magnetic field associated with the operation of the device. The model railgun ...

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To assess elderly occupant protection in frontal as well as near-side impacts two restraint systems were designed to reduce loading of the chest and thereby reduce the risk of rib fractures which are common among the elderly population. The frontal protection system is called the split buckle (SB) system, and the side impact protection system is a pre-crash dual airbag (Pre-Crash SAB). The spli...

The senior transportation problem (STP) is an optimization problem in which a fixed fleet of volunteer-operated, heterogeneous vehicles from multiple depots must satisfy as many elderly door-to-door transportation requests as possible within a fixed time horizon. All requests consist of a oneto-one pickup and delivery with time windows. Moreover, as the clients are seniors, a maximum ride time ...

BACKGROUND This study examined the effectiveness of a theoretical framework that integrates self-determination theory (SDT) and the theory of planned behavior (TPB) in explaining the use of facemasks to prevent seasonal influenza among Hong Kong older adults. METHODS Data were collected at two time points in the winter in Hong Kong, during which influenza is most prevalent. At Time 1, older a...

BACKGROUND Immunizations decrease morbidity from influenza and pneumococcal infections. Immunization levels remain below desired levels despite clinic-based and public education efforts. This paper describes a randomized, controlled trial of a senior center-based program, which used peer-to-peer outreach to increase pneumococcal and influenza immunization rates among an urban senior population....

[Purpose] The purpose of this study was to describe the relationship between three practical measures used to characterize muscle mass: mid-arm circumference, maximum calf circumference, and muscle mass index determined using bioimpedance analysis. [Subjects and Methods] Thirty-eight ambulatory women residing in a senior center (mean age, 83 years) participated in this cross-sectional study. Th...

Disease management is becoming increasingly important in workplace health promotion given the aging workforce, rising chronic disease prevalence, and needs to maintain a productive and competitive American workforce. Despite the widespread availability of the Chronic Disease Self-Management Program (CDSMP), and its known health-related benefits, program adoption remains low in workplace setting...