Mississippi State University

About: Mississippi State University is a education organization based out in Starkville, Mississippi, United States. It is known for research contribution in the topics: Population & Catfish. The organization has 14115 authors who have published 28594 publications receiving 700030 citations. The organization is also known as: The Mississippi State University of Agriculture and Applied Science & Mississippi State University of Agriculture and Applied Science.

Beyond deterrence: an expanded view of employee computer abuse

Abstract: Recent academic investigations of computer security policy violations have largely focused on nonmalicious noncompliance due to poor training, low employee motivation, weak affective commitment, or individual oversight. Established theoretical foundations applied to this domain have related to protection motivation, deterrence, planned behavior, self-efficacy, individual adoption factors, organizational commitment, and other individual cognitive factors. But another class of violation demands greater research emphasis: the intentional commission of computer security policy violation, or insider computer abuse. Whether motivated by greed, disgruntlement, or other psychological processes, this act has the greatest potential for loss and damage to the employer. We argue the focus must include not only the act and its immediate antecedents of intention (to commit computer abuse) and deterrence (of the crime), but also phenomena which temporally precede these areas. Specifically, we assert the need to consider the thought processes of the potential offender and how these are influenced by the organizational context, prior to deterrence. We believe the interplay between thought processes and this context may significantly impact the efficacy of IS security controls, specifically deterrence safeguards. Through this focus, we extend the Straub and Welke (1998) security action cycle framework and propose three areas worthy of empirical investigation--techniques of neutralization (rationalization), expressive/instrumental criminal motivations, and disgruntlement as a result of perceptions of organizational injustice--and propose questions for future research in these areas.

Effects of process time interval and heat treatment on the mechanical and microstructural properties of direct laser deposited 316L stainless steel

Abstract: The mechanical and microstructural properties of 316L stainless steel (SS) fabricated via Direct Laser Deposition (DLD), a laser-based additive manufacturing method, are presented and compared with those of conventionally-built counterparts. Using a Laser Engineered Net Shaping (LENS ® ) DLD system, the time interval between successive layer deposits, or inter-layer/idle time, for fabricating cylindrical specimens vertically-upward was varied by building either one or nine samples per build plate – thus increasing total assembly volume per build. Subsequently, the effect of thermal history, as well as heat treatment, on microstructural (i.e. grain size and morphology) and mechanical (i.e. tensile, compression, and microhardness) properties of DLD parts were investigated. Results indicate that the DLD 316L SS samples produced herein have a higher yield and ultimate tensile strength relative to their cast and wrought forms. Furthermore, the thermal history, microstructural evolution, and mechanical properties of DLD 316L SS are shown to be dependent on the time interval between deposits. Longer local time intervals result in higher cooling rates, leading to finer microstructures, higher/uniform strength and lower elongation to failure. In addition, porosity and less integral metallurgical bonds are found to be more prevalent in locations further upward from the build plate due to reduced laser penetration depths (e.g. previous-layer remelting decreases). Conversely, parts manufactured with shorter time intervals were found to possess a coarser microstructure, lower strength and higher elongation to failure – attributable to lower cooling rates caused by an increased bulk temperature in the part. These results may aid in future design and control of more efficient, constant-power DLD processes – especially with regard to building multiple and/or larger parts; an approach desirable for minimizing small-to-medium lot production times.

A methodology for construct development in MIS research

Abstract: This paper presents a comprehensive methodology for developing constructs in MIS research. It is applicable to both individual and organizational levels of analysis, depending on the nature of the concept under study. The methodology is presented as a research guide progressing through three stages: (1) domain definition, (2) instrument construction, and (3) evaluation of measurement properties. The methodology addresses six key measurement properties (content validity, factorial validity, reliability, convergent validity, discriminant validity, nomological validity), which are discussed in detail. An assessment of the proposed methodology indicates that its adoption in MIS research would greatly improve the rigor of construct development projects. This is evidenced by the wide range of quality publications that have used its techniques and its performance when compared to a number of prominent standards for assessing construct development research.