University of Macau

About: University of Macau is a education organization based out in Macao, Macau, China. It is known for research contribution in the topics: Population & Control theory. The organization has 6636 authors who have published 18324 publications receiving 327384 citations. The organization is also known as: UM & UMAC.

A survey of human-centered intelligent robots: issues and challenges

Abstract: Intelligent techniques foster the dissemination of new discoveries and novel technologies that advance the ability of robots to assist and support humans. The human-centered intelligent robot has become an important research field that spans all of the robot capabilities including navigation, intelligent control, pattern recognition and human-robot interaction. This paper focuses on the recent achievements and presents a survey of existing works on human-centered robots. Furthermore, we provide a comprehensive survey of the recent development of the human-centered intelligent robot and discuss the issues and challenges in the field.

The bad boss takes it all: How abusive supervision and leader–member exchange interact to influence employee silence

Abstract: Abusive supervision is a dysfunctional leadership behavior that adversely affects its targets and the organization as a whole. Drawing on conservation of resources (COR) theory, the present research expands our knowledge on its destructive impact. Specifically, we propose a moderated mediation model wherein abusive supervision predicts subordinate's silence behavior through emotional exhaustion, with leader–member exchange (LMX) acting as the contextual condition. Two-wave data collected from 152 employees in the service industry in Macau supported our hypothesized model. We found that abused subordinates resort to remain silent in the workplace due to their feelings of emotional exhaustion. Further, the presence of high LMX makes the adverse impact of abusive supervision even worse. Theoretical and practical implications are discussed. We also offer several promising directions for future research.

Combining social axioms with values in predicting social behaviours

Abstract: Recently, Leung et al. (2002) have identified a pan-cultural set of five dimensions tapping beliefs about the world in which each individual functions. These general axioms may be conceptualized as individual assessments of the social context constraining one’s behavioural choices. As such, we hypothesize that these beliefs about the world may be combined with measures of motivation to predict an individual’s actions. To test this model, the present research examined the usefulness of these social axioms as predictors of behavioural tendencies in conjunction with four comprehensive dimensions of values (Schwartz, 1992). Hierarchical regression analyses showed that social axioms added moderate predictive power over and above that provided by values to vocational choices, methods of conflict resolution, and coping styles. Specifically, reward for application was related to preference for conventional jobs and accommodation in conflict resolution; religiosity was related to accommodation and to competition in conflict resolution; social cynicism was related negatively to collaboration and to compromise in conflict resolution, and positively to wishful thinking in coping; fate control was related positively to wishful thinking and distancing in coping; and social complexity was related to compromise and to collaboration in conflict resolution, and to problem-solving as a coping strategy. It thus seems as if measures of respondents’ beliefs about the external, social world supplement measures of their internal motivations to achieve various goals. Copyright # 2004 John Wiley & Sons, Ltd.

Mental health consequences of COVID-19 media coverage: the need for effective crisis communication practices.

Abstract: During global pandemics, such as coronavirus disease 2019 (COVID-19), crisis communication is indispensable in dispelling fears, uncertainty, and unifying individuals worldwide in a collective fight against health threats. Inadequate crisis communication can bring dire personal and economic consequences. Mounting research shows that seemingly endless newsfeeds related to COVID-19 infection and death rates could considerably increase the risk of mental health problems. Unfortunately, media reports that include infodemics regarding the influence of COVID-19 on mental health may be a source of the adverse psychological effects on individuals. Owing partially to insufficient crisis communication practices, media and news organizations across the globe have played minimal roles in battling COVID-19 infodemics. Common refrains include raging QAnon conspiracies, a false and misleading “Chinese virus” narrative, and the use of disinfectants to “cure” COVID-19. With the potential to deteriorate mental health, infodemics fueled by a kaleidoscopic range of misinformation can be dangerous. Unfortunately, there is a shortage of research on how to improve crisis communication across media and news organization channels. This paper identifies ways that legacy media reports on COVID-19 and how social media-based infodemics can result in mental health concerns. This paper discusses possible crisis communication solutions that media and news organizations can adopt to mitigate the negative influences of COVID-19 related news on mental health. Emphasizing the need for global media entities to forge a fact-based, person-centered, and collaborative response to COVID-19 reporting, this paper encourages media resources to focus on the core issue of how to slow or stop COVID-19 transmission effectively.

Treatment of atherosclerosis by macrophage-biomimetic nanoparticles via targeted pharmacotherapy and sequestration of proinflammatory cytokines

Abstract: Vascular disease remains the leading cause of death and disability, the etiology of which often involves atherosclerosis. The current treatment of atherosclerosis by pharmacotherapy has limited therapeutic efficacy. Here we report a biomimetic drug delivery system derived from macrophage membrane coated ROS-responsive nanoparticles (NPs). The macrophage membrane not only avoids the clearance of NPs from the reticuloendothelial system, but also leads NPs to the inflammatory tissues, where the ROS-responsiveness of NPs enables specific payload release. Moreover, the macrophage membrane sequesters proinflammatory cytokines to suppress local inflammation. The synergistic effects of pharmacotherapy and inflammatory cytokines sequestration from such a biomimetic drug delivery system lead to improved therapeutic efficacy in atherosclerosis. Comparison to macrophage internalized with ROS-responsive NPs, as a live-cell based drug delivery system for treatment of atherosclerosis, suggests that cell membrane coated drug delivery approach is likely more suitable for dealing with an inflammatory disease than the live-cell approach.