1,809 research outputs found
Discovering cultural differences (and similarities) in facial expressions of emotion
Understanding the cultural commonalities and specificities of facial expressions of emotion remains a central goal of Psychology. However, recent progress has been stayed by dichotomous debates (e.g., nature versus nurture) that have created silos of empirical and theoretical knowledge. Now, an emerging interdisciplinary scientific culture is broadening the focus of research to provide a more unified and refined account of facial expressions within and across cultures. Specifically, data-driven approaches allow a wider, more objective exploration of face movement patterns that provide detailed information ontologies of their cultural commonalities and specificities. Similarly, a wider exploration of the social messages perceived from face movements diversifies knowledge of their functional roles (e.g., the ‘fear’ face used as a threat display). Together, these new approaches promise to diversify, deepen, and refine knowledge of facial expressions, and deliver the next major milestones for a functional theory of human social communication that is transferable to social robotics
Self-Expression and Sharing around Chronic Illness on TikTok
While prior work has investigated the benefits of online health communities
and general purpose social media used for health-related purposes, little work
examines the use of TikTok, an emerging social media platform with a
substantial user base. The platform's multimodal capabilities foster creative
self-expression, while the content-driven network allows users to reach new
audiences beyond their personal connections. To investigate users' challenges
and motivations, we analyzed 160 TikTok videos that center on users' first hand
experiences living with chronic illness. We found that users struggled with a
loss of normalcy and stigmatization in daily life. To contend with these
challenges, they publicly shared their experiences to raise awareness, seek
support from peers, and normalize chronic illness experiences. Based on our
findings, we discuss the modalities of TikTok that facilitate self-expression
around stigmatized topics and provide implications for the design of online
health communities that better support adolescents and young adults.Comment: Paper accepted for the proceedings of the 2023 American Medical
Informatics Association Annual Symposium (AMIA
Reverse Engineering Psychologically Valid Facial Expressions of Emotion into Social Robots
Social robots are now part of human society, destined for schools, hospitals, and homes to perform a variety of tasks. To engage their human users, social robots must be equipped with the essential social skill of facial expression communication. Yet, even state-of-the-art social robots are limited in this ability because they often rely on a restricted set of facial expressions derived from theory with well-known limitations such as lacking naturalistic dynamics. With no agreed methodology to objectively engineer a broader variance of more psychologically impactful facial expressions into the social robots' repertoire, human-robot interactions remain restricted. Here, we address this generic challenge with new methodologies that can reverse-engineer dynamic facial expressions into a social robot head. Our data-driven, user-centered approach, which combines human perception with psychophysical methods, produced highly recognizable and human-like dynamic facial expressions of the six classic emotions that generally outperformed state-of-art social robot facial expressions. Our data demonstrates the feasibility of our method applied to social robotics and highlights the benefits of using a data-driven approach that puts human users as central to deriving facial expressions for social robots. We also discuss future work to reverse-engineer a wider range of socially relevant facial expressions including conversational messages (e.g., interest, confusion) and personality traits (e.g., trustworthiness, attractiveness). Together, our results highlight the key role that psychology must continue to play in the design of social robots
A Method For Detecting Scheduled-Service Vehicles By Crowdsensing Of On-Board Beacons
The technology detects scheduled-service vehicles using a model generated based on onboard beacon location data. A trajectory of the onboard beacon may be determined by correlating the beacon detection data with the location data of the detecting devices. The trajectory may be analyzed to derive features of the beacon trajectory that correlate with a periodic motion typical of scheduled-service vehicles. Such features may be used to train a machine capable of learning patterns from data to generate a model that classifies whether a beacon trajectory is that of a scheduled-service vehicle. Various beacon trajectories may be classified by the generated model as either a scheduled-service vehicle or not. Once certain beacons are identified as onboard scheduled-service vehicles, further trajectory data may be gathered on such beacons to map out accurate public-transit routes and schedules, as well as to provide real-time locations and changes to routes and schedules
Neddylation dysfunction in Alzheimer's disease
Ubiquitin-dependent proteolysis is a major mechanism that downregulates misfolded proteins or those that have finished a programmed task. In the last two decades, neddylation has emerged as a major regulatory pathway for ubiquitination. Central to the neddylation pathway is the amyloid precursor protein (APP)-binding protein APP-BP1, which together with Uba3, plays an analogous role to the ubiquitin-activating enzyme E1 in nedd8 activation. Activated nedd8 covalently modifies and activates a major class of ubiquitin ligases called Cullin-RING ligases (CRLs). New evidence suggests that neddylation also modifies Type-1 transmembrane receptors such as APP. Here we review the functions of neddylation and summarize evidence suggesting that dysfunction of neddylation is involved in Alzheimer's disease.National Institutes of Health (U.S.) (NIH/NIA RO1 AG034980
Structure and cleavage of monosodium urate monohydrate crystals
The structural study of monosodium urate monohydrate, as the principal component in gout stones, reveals that a simple and biocompatible way to breakdown the crystals into polymerised molecules at pH of 7.4 (the acidity of normal human blood) is to peel off them along the [001] direction by sonication.PostprintPeer reviewe
North Carolina Stormwater Compliance Evaluation for the 20 Coastal Counties
Stormwater is one of the largest sources of pollutants in the United States and contributes sediment, heavy metals, oil, pesticides, fertilizers, bacteria, and other contaminants to coastal waters. Water quality is critical to coastal areas for commercial fishery health and recreational activities. To minimize the introduction of water quality pollutants, North Carolina implemented the State Stormwater Program (SSP) for post construction stormwater management. A study in 2005 identified low compliance rates with the SSP (30.7%) and a follow-up in 2009 found that only 20% of noncompliant sites had rectified their violations. There are currently no studies documenting recent compliance rates with the SSP. This study addressed three objectives: (1) Update the compliance study to include recent trends in compliance and reasons for violations (2) Determine the perceptions of the strengths and opportunities for improvement, and (3) Conduct a program analysis of the SSP. These objectives were achieved by analyzing compliance data from the Division of Energy, Mineral, and Land Resources, conducting interviews with a small sample of entities that interact with the SSP, and reviewing applicable compliance literature. The results of our study show potential areas for improvement and were used to make policy recommendations for North Carolina to increase compliance with these regulations. Our results indicate that compared to the 2005 estimate, compliance in 2012 increased to 50%, and was lower in coastal counties than noncoastal counties. In total there were 2,838 compliance inspections between 2008 and 2012. Yearly inspections increased between 2008 and 2010, but decreased sharply in 2011 and remained low in 2012. The majority of violations were due to reporting and maintenance issues. Interview respondents indicated that the main impediments to compliance are maintenance and education, and that compliance could be improved through increased maintenance checks and public outreach efforts. The program analysis showed that while the stormwater program generally has clear regulations, it could benefit from increased visibility of the regulating agency, engagement, as well as education. Potential avenues for improvement are discussed, and are considered within the context of our findings
Deltas in arid environments
© The Author(s), 2021. This article is distributed under the terms of the Creative Commons Attribution License. The definitive version was published in Day, J., Goodman, R., Chen, Z., Hunter, R., Giosan, L., & Wang, Y. Deltas in arid environments. Water, 13(12), (2021): 1677, https://doi.org/10.3390/w13121677.Due to increasing water use, diversion and salinization, along with subsidence and sea-level rise, deltas in arid regions are shrinking worldwide. Some of the most ecologically important arid deltas include the Colorado, Indus, Nile, and Tigris-Euphrates. The primary stressors vary globally, but these deltas are threatened by increased salinization, water storage and diversion, eutrophication, and wetland loss. In order to make these deltas sustainable over time, some water flow, including seasonal flooding, needs to be re-established. Positive impacts have been seen in the Colorado River delta after flows to the delta were increased. In addition to increasing freshwater flow, collaboration among stakeholders and active management are necessary. For the Nile River, cooperation among different nations in the Nile drainage basin is important. River flow into the Tigris-Euphrates River delta has been affected by politics and civil strife in the Middle East, but some flow has been re-allocated to the delta. Studies commissioned for the Indus River delta recommended re-establishment of some monthly water flow to maintain the river channel and to fight saltwater intrusion. However, accelerating climate impacts, socio-political conflicts, and growing populations suggest a dire future for arid deltas.This research received no external funding
Association Between Race, Neighborhood, and Medicaid Enrollment and Outcomes in Medicare Home Health Care
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/142524/1/jgs15082_am.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/142524/2/jgs15082.pd
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