John M. Ting, Larry Meachum and Jeffrey D. Rowell
This paper presents the results of a Discrete Element Method study on the influence of particle shape on the strength and deformation behaviour of two dimensional assemblages of…
Abstract
This paper presents the results of a Discrete Element Method study on the influence of particle shape on the strength and deformation behaviour of two dimensional assemblages of ellipse‐shaped particles. Assemblages of particles with varying individual particle aspect ratio were formed with a preferred bedding plane, isotropically compressed with varying isotropic confining stresses and then sheared with biaxial compression. The results indicate that Discrete Element analysis using two dimensional ellipse‐shaped particles produces mechanical behaviour which is similar both quantitatively and qualitatively to the behaviour of real granular materials. Even small particle out‐of‐roundness increases the observed macroscopic strength significantly. In systems composed of flatter particles, particle rotations are greatly inhibited. Decomposing relative contact displacements into contributions due to particle rotation and translation demonstrates that most of the displacements in round particle systems are due to individual particle rotation.
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Lee C. Jarvis, Rebekah Eden, April L. Wright and Andrew Burton-Jones
Digital transformations represent an increasingly salient empirical phenomena for institutionalists studying the processes by which institutions evolve, erode, or otherwise…
Abstract
Digital transformations represent an increasingly salient empirical phenomena for institutionalists studying the processes by which institutions evolve, erode, or otherwise change. Yet, there have been few meaningful attempts to engage with insights from the information systems (IS) literature, despite digital innovation and diffusion falling squarely within its domain. This essay makes an initial attempt at integration by offering a two-by-two framework which crosses salient theoretical categories within the IS and institutional literatures. From the former, we draw on concepts of system acceptance and resistance, and from the latter, we draw on concepts of institutional maintenance and change. Each quadrant in our framework represents user responses happening because of, in reaction to, or toward various institutional dynamics. We illustrate each quadrant with data collected as part of a study of digital transformation in the field of public healthcare in Australia. We use our illustrative case to open up research questions which researchers might use to frame their own studies of digital transformations as a form of institutional change. We conclude with a discussion of what other theoretical advances or insights might be yielded from greater collaboration between institutionalists and IS scholars. This essay contributes to the nascent study of digital transformations as a form of institutional change through examining how complementary concepts of the IS and institutional literatures might be used simultaneously to understand the intersection of digital innovation and diffusion and the institutional arrangements governing the fields which they change.
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Once in a while, you should take stock of your personal computing environment. What is on your system? How did it get there? What do you actually use? How did you arrive at your…
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Once in a while, you should take stock of your personal computing environment. What is on your system? How did it get there? What do you actually use? How did you arrive at your hardware configuration, and does it still meet your needs? You may find that you can free up some disk space in the process; at the very least, you'll understand your situation better. The author goes through this exercise both as an example of what it can show and because full disclosure is important for this series of articles. You need to know the background for the advice that appears here. The author discloses his current computing environments, how they got that way, and what that may mean. He also points out the real limits within which he operates as a PC commentator. When you go through the software on your system, you should check to see whether it represents ethical computing. The author offers a few notes on ethical issues related to software. The author also provides notes from PC literature for January‐June 1992.
Classification is so fundamental and pervasive an activity that care is needed to define its scope when discussing a particular application, such as information retrieval.
Olusanmi C. Amujo, Beatrice Adeyinka Laninhun, Olutayo Otubanjo and Victoria Olufunmilayo Ajala
Purpose – This chapter examines how irresponsible corporate activities (environmental pollution, human rights abuses, tax evasion, corruption and contract scandals) of some…
Abstract
Purpose – This chapter examines how irresponsible corporate activities (environmental pollution, human rights abuses, tax evasion, corruption and contract scandals) of some multinational oil companies in the Niger Delta influence stakeholders’ perception of their image/reputation in Nigeria.
Methodology – The objective of this chapter is accomplished through the review of literature on the activities of multinational oil corporations in the Niger Delta, supported by qualitative interviews and analysis of archival materials.
Findings – Three important findings emerged from this study. First, the participants were fully aware of the irresponsible behaviours of oil corporations in the Niger Delta, and some oil corporations were involved in these illicit acts. Second, the analysis of archival materials supports the participants' views with reference to the identities of the corporations involved in these criminal acts. Third, the absence of a strong corporate governance system in Nigeria makes it possible for the officials of oil corporations to tactically circumvent the law by involving in a maze of sophisticated corrupt acts.
Research/practical implications – The implication for the academics and practitioners is evident when a corporation implements corporate social responsibility dutifully; it generates positive impact on its corporate reputation rating. Conversely, when a corporation engages in irresponsible corporate misbehaviours, it attracts negative consequences on its reputation.
Originality – The originality of this chapter lies in the fact that it is the first empirical study to examine the impact of corporate social irresponsibility on the image/reputation of multinational oil corporations in Nigeria.