121,818 research outputs found
More than meets the eye: the unintended consequence of leader dominance orientation on subordinate ethicality
No full textLeaders play a pivotal role in establishing ethical norms and behaviors within organizations. Across seven studies (three in the Supplementary Information), we explore how subordinates infer their leader’s moral character outside the domain of ethical conduct and document this process’s downstream consequences. Specifically, we focus on the dual-strategies theory, which posits that leaders exert influence and obtain deference via two broad orientations of behaviors and cognitions: dominance and prestige. In a field setting of employees and their managers, we find that leader dominance orientation positively relates to subordinate self-reported unethical behavior, whereas leader prestige is negatively related to the same. In a second sample of working adults, we use a time-lagged study design to show that leader dominance (prestige) positively (negatively) relates to subordinate-reported unethical behavior at work partly because of a belief that the leaders engage in more (less) unethical behaviors, which contributes to a belief that norm-violating behaviors are more (less) acceptable within teams under dominance- (prestige-) oriented leaders. Finally, across four experimental studies, we observe that participants assigned to a dominance-oriented (versus prestige-oriented) leader perceived their leader as having lower moral character and expressed a greater likelihood of engaging in unethical behavior. We also document actual unethical behavior for monetary gain. This effect was mediated by the belief that unethical behavior was normative within the team. Our results highlight the importance of moral (mis)perception by demonstrating the consequences of a leader’s hierarchical orientation on subordinate ethical perceptions and behaviors at work
Improving human kidney function in renovascular disease with mesenchymal stem cell therapy
No full textCommentaryA dose escalation study of adipose-derived human mesenchymal stem cell (MSC) therapy was studied in 21 subjects. This dose escalation study confirmed no significant cellular toxicity, but it showed improvement in renal oxygenation and glomerular filtration rate. No significant renal toxicity from cell therapy was shown. A reduction in inflammatory markers including tumor necrosis factor-a, interferon-g, and neutrophil gelatinase-associated lipocalin was noted in subjects receiving MSC therapy. This study provides short-term safety and renal efficacy for MSC therapy and paves the way forward for future MSC-based interventions in renovascular disease.Kisha N. Sivanathan, and P. Toby Coate
Perilous and unaccountable: the positive relationship between dominance and moral hazard behaviors
No full textMoral hazard involves a context where decision-makers engage in behaviors that prioritize self-interest while allowing the associated risk to be primarily borne by others. Such decision-making can lead to catastrophic consequences, as seen in the 2008 global financial crisis after hedge fund managers indiscriminately invested their clients’ money in subprime mortgages. This research examines which decision-makers are most likely to engage in moral hazard decision-making and the psychological mechanism driving this behavior. Drawing on the dual model of social influence, we posit that individuals associated with dominance, but not prestige, will engage in greater moral hazard behaviors. We further contend that these behaviors are driven by dominant decision-makers’ enhanced focus on end goals (outcomes) rather than the means (process) that they use to pursue such goals. We find support for our hypotheses across 13 studies (*NObservations* = 26,880; of which eight were pre-registered and six studies are reported in the Supplementary Information (SI)), using both correlational and experimental designs. Additionally, we vary the moral hazard context (e.g., a financial setting, a health and safety issue, etc.) and capture both behavioral intentions and actual behaviors, while also ruling out several alternative explanations. These findings demonstrate that dominant decision-makers engage in moral hazard behaviors because of their tendency to prioritize outcomes over processes
Growth of GaN-based LED on C-plane GaN substrate / Sivanathan Pariasamy @ Chelladurai
No full textThe InGaN/GaN multi-quantum wells, growth on bulk GaN substrate were studied for
blue light emission via metal-organic chemical vapor deposition (MOCVD). The homoepitaxy
growth of GaN-on-GaN gives an unprecedented high performance with low defect
density, high-quality crystal, simplified LED architectures (short process flow) and overall
lower cost. The optimizations of InGaN/GaN MQWs on n-type GaN substrate for blue
emission at 445-455 nm range were carried out. The high quality 6 pairs of multi-quantum
wells with InGaN quantum wells and GaN quantum barriers were grown at different
temperatures (650�to 780�). The lowest defect density demonstrated at 1.3�107 c
Mesenchymal stem cells for kidney transplantation
No full textPublished online: July 24, 2014The long term consequence of immunosuppressive therapy in kidney transplantation has prompted investigation of alternative means to modify the immune response to the allograft. Cell based therapies are potentially attractive as they may provide a long lasting immunomodulatory effect, may repair tissues and reduce the necessity to take immunosuppressive drug therapy. Of the current cell therapies, mesenchymal stem cells have now been trialled in small numbers of human kidney transplantation with apparent safety and potential efficacy. Many issues however need to be resolved before these cells will become mainstays of transplant immunosuppression including ex vivo modification to enhance immunomodulatory properties, cell number, route and frequency of administration as well as cellular source of origin.Bron Lett, Kisha N Sivanathan, P Toby Coate
A Multi-Language Comparison of Influences on Author Verification using Character N-Grams
No full textWe create a new multi-language corpus for author verification based on Wikipedia talkpages, and evaluate the influence that differences in topic and time have on character n-gram author profiles. Topic alignment between two texts is found to increase author verification precision, and an authors writing style is found to change over time, but not more significantly after 3 years than after 1 year.Information ArchitectureWISElectrical Engineering, Mathematics and Computer Scienc
Appropriate Similarity Measures for Author Cocitation Analysis
No full textWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
The vanishing author in computer-generated works: a critical analysis of recent Australian case law
No full textAbstract
The use of software is ubiquitous in the creation of many copyright works, yet the requirement in copyright law that every work have a human author who engages in independent intellectual effort means that its use may prevent copyright subsistence. Several recent Australian cases have refocused attention on authorship as an essential criterion of copyright subsistence, and these cases suggest that much computer-produced output may be authorless and thus lack copyright protection. This article, the first in a two-part series, analyses how each case deals with the question of authorship of computer-produced works and why the use of software diminishes copyright protection for a significant number of computer-generated works. The article critiques the application of conventional notions of human authorship developed in the pre-computer age to modern productions and suggests alternative approaches to authorship that satisfy both the major objectives of copyright policy and the need to adapt to the computer age. The article argues that, without a broader judicial approach to authorship of computer-generated works, Parliament must remedy the lacuna in protection for these ‘authorless’ works. Possible solutions for reform are suggested. In a forthcoming article, the author comprehensively examines those reform proposals
Diffusive author(s), cohesive author: Analysis of S/N (1994)
No full textThis study indicates the ways in which various aspects of the author(s) are brought forth in Dumb type’s performance art, the S/N production. Previous research has suggested a non-hierarchical organization of Dumb type and the absence of a “privileged author” in Dumb type’s collaborative work, S/N. However, the results that I have investigated from member’s interviews on the creative process of S/N along with my analysis of the recorded images of S/N, indicate a different aspect of the author(s). First, S/N was created through, so to speak, the collective ideas of the members of Dumb type. Further, S/N has at least nine quotations from previous performances, installations, and printed writings, besides the work-in-progress technique. Explicating one of the “author functions” as given by Michel Foucault, each text has plural subjects of the author. However, it has been revealed from members’ interviews that Teiji Furuhashi had a decision-making role in selecting the members’ ideas within the performance. Since then, S/N has had plural subjects of creation; however, Furuhashi is one of the subjects of creation along with the “privileged author.” S/N has plural authors (diffusive authors) yet at the same time, it has a “privileged author,” Teiji Furuhashi (cohesive author)
Dissipative Range Scaling of Higher Order Structure Functions for Velocity and Passive Scalars
No full textDifferently to Kolmogorov's second similarity hypothesis, we find that the 2n-th order velocity and scalar structure functions scale with n-th order moment of the energy dissipation and the scalar dissipation, respectively. The origins of this scaling are analyzed by the transport equations of the fourth order velocity and scalar increment moments and by direct numerical simulations
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