1,881 research outputs found

    Adolescent and parent use of new technologies for health communication: a study in an urban Latino community

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    Background. Mobile communication technologies provide novel opportunities to support clinic-based health initiatives. Adoption of technologies for daily use and for health communication can differ between communities, depending upon demographic and cultural characteristics. Design and methods. A survey was administered in adolescent primary care and subspecialty clinics to assess parent-adolescent preferences in use of mobile technologies and social media to support provider-patient communication in an urban Latino community. Results. Of 130 respondents (65 parent-adolescent pairs), approximately half frequently sent and received text messages but lacked agreement regarding the other’s text messaging use. In contrast, adolescents only rarely used email compared to parents (15.4% versus 37.5%, P=0.006). Of social media, FacebookTM/MySpaceTM was most frequently used by parents and youth (60% and 55.4%, P=0.59); however, most lacked interest in using social media for health communication. Parents reported more interest than adolescents in receiving email (73.4% versus 35.9%, P<0.001) and text messages (58.5% versus 33.9%, P=0.005) for health, but had more concerns about privacy issues (26.2% versus 9.2%, P=0.01). Respondents who were American born (aOR 5.7, 95%CI 1.2-28.5) or regularly used Instant Messaging or FacebookTM/MySpaceTM (aOR 4.6, 95%CI 1.4-14.7) were more likely to be interested in using social media for health communication. Conclusions. These findings underscore the importance of targeted assessment for planning the utilization of communication technologies and social media in clinical care or research for underserved youth

    Cities and citadels: an archaeology of inequality and economic growth

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    Cities and Citadels provides an urgent update of archaeology’s engagement with economic theory. Recent events have forced a major reassessment of economic thinking. In the wake of the 2008 Great Recession and the economic impact of the COVID-19 Pandemic, the world finds itself in unprecedented times. Even though archaeology typically concerns itself with the remote past, it must also help us understand how we got to where we are today. This book takes up the challenging new theories of scholars like Thomas Piketty, Mariana Mazzucato and David Graeber and explores their importance for the study of human economies in ancient and prehistoric contexts. Drawing on case studies from the Neolithic to the Classical Era and spanning the globe, the authors put forward a new narrative of economic change that is relevant to the 21st century. This book speaks to the study of economics in all ancient societies and is suitable for researchers of archaeology, economics, economic history and all related disciplines

    The Impact of Trajectory Prediction Uncertainty on Air Traffic Controller Performance and Acceptability

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    A Human-In-The-Loop air traffic control simulation investigated the impact of uncertainties in trajectory predictions on NextGen Trajectory-Based Operations concepts, seeking to understand when the automation would become unacceptable to controllers or when performance targets could no longer be met. Retired air traffic controllers staffed two en route transition sectors, delivering arrival traffic to the northwest corner-post of Atlanta approach control under time-based metering operations. Using trajectory-based decision-support tools, the participants worked the traffic under varying levels of wind forecast error and aircraft performance model error, impacting the ground automations ability to make accurate predictions. Results suggest that the controllers were able to maintain high levels of performance, despite even the highest levels of trajectory prediction errors

    Andreev reflection in the fractional quantum Hall effect

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    We study the reflection of electrons and quasiparticles on point-contact interfaces between fractional quantum Hall (FQH) states and normal metals (leads), as well as interfaces between two FQH states with mismatched filling fractions. We classify the processes taking place at the interface in the strong coupling limit. In this regime a set of quasiparticles can decay into quasiholes on the FQH side and charge excitations on the other side of the junction. This process is analogous to an Andreev reflection in normal-metal/superconductor (N-S) interfaces.Comment: 10 pages, 5 embedded EPS figures. Final version as published in Phys. Rev. B 56, 2012 (1997

    Hemodynamic signals of mixed messages during a social exchange

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    The present study used functional magnetic resonance imaging (fMRI) to characterize hemodynamic activation patterns recruited when participants view mixed social communicative messages during a common interpersonal exchange. Mixed messages were defined as conflicting sequences of biological motion and facial affect signals that are unexpected within a particular social context (for example, observing the reception of a gift). Across four social vignettes, valenced facial expressions were crossed with rejecting and accepting gestures in a virtual avatar responding to presentation of a gift from the participant. Results indicate that conflicting facial affect and gesture activated superior temporal sulcus, a region implicated in expectancy violations, as well as inferior frontal gyrus and putamen. Scenarios conveying rejection differentially activated the insula and putamen, regions implicated in embodied cognition and motivated learning, as well as frontoparietal cortex. Characterizing how meaning is inferred from integration of conflicting nonverbal communicative cues is essential to understand nuances and complexities of human exchange

    Directions for Future Patient-Centered and Comparative Effectiveness Research for People With Serious Mental Illness in a Learning Mental Health Care System

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    This supplement, while ambitious in scope, presents its major concepts with elegance and clarity. In this critical appraisal of mental health services treatment and outcomes, the authors have extended the utility of research findings by systematically gathering data on the experiences and preferences of numerous stakeholders. Key among the report’s conclusions is the need for patient-centered, patient-developed measures that can be used at all levels of a learning system to assess service provision approaches, compare treatment interventions, and improve outcomes
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