439 research outputs found

    Evaluating Engagement in Digital Narratives from Facial Data

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    Engagement researchers indicate that the engagement level of people in a narrative has an influence on people's subsequent story-related attitudes and beliefs, which helps psychologists understand people's social behaviours and personal experience. With the arrival of multimedia, the digital narrative combines multimedia features (e.g. varying images, music and voiceover) with traditional storytelling. Research on digital narratives has been widely used in helping students gain problem-solving and presentation skills as well as supporting child psychologists investigating children's social understanding such as family/peer relationships through completing their digital narratives. However, there is little study on the effect of multimedia features in digital narratives on the engagement level of people. This research focuses on measuring the levels of engagement of people in digital narratives and specifically on understanding the media effect of digital narratives on people's engagement levels. Measurement tools are developed and validated through analyses of facial data from different age groups (children and young adults) in watching stories with different media features of digital narratives. Data sources used in this research include a questionnaire with Smileyometer scale and the observation of each participant's facial behaviours

    Innovative problem solving by wild falcons

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    Innovation (i.e., a new solution to a familiar problem, or applying an existing behavior to a novel problem1,2) plays a fundamental role in species’ ecology and evolution. It can be a useful measure for cross-group comparisons of behavioral and cognitive flexibility and a proxy for general intelligence.3,4,5 Among birds, experimental studies of innovation (and cognition more generally) are largely from captive corvids and parrots,6,7,8,9,10,11,12 though we lack serious models for avian technical intelligence outside these taxa. Striated caracaras (Phalcoboenus australis) are Falconiformes, sister clade to parrots and passerines,13,14,15 and those endemic to the Falkland Islands (Malvinas) show curiosity and neophilia similar to notoriously neophilic kea parrots16,17 and face similar socio-ecological pressures to corvids and parrots.18,19 We tested wild striated caracaras as a new avian model for technical cognition and innovation using a field-applicable 8-task comparative paradigm (adapted from Rössler et al.20 and Auersperg et al.21). The setup allowed us to assess behavior, rate, and flexibility of problem solving over repeated exposure in a natural setting. Like other generalist species with low neophobia,21,22 we predicted caracaras to demonstrate a haptic approach to solving tasks, flexibly switching to new, unsolved problems and improving their performance over time. Striated caracaras performed comparably to tool-using parrots,20 nearly reaching ceiling levels of innovation in few trials, repeatedly and flexibly solving tasks, and rapidly learning. We attribute our findings to the birds’ ecology, including geographic restriction, resource unpredictability, and opportunistic generalism,23,24,25 and encourage future work investigating their cognitive abilities in the wild.Fil: Harrington, Katie J.. Medical University Of Vienna; AustriaFil: Folkertsma, Remco. Medical University Of Vienna; AustriaFil: Auersperg, Alice M. I.. Medical University Of Vienna; AustriaFil: Biondi, Laura Marina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Mar del Plata. Instituto de Investigaciones Marinas y Costeras. Universidad Nacional de Mar del Plata. Facultad de Ciencias Exactas y Naturales. Instituto de Investigaciones Marinas y Costeras; ArgentinaFil: Lambert, Megan L.. Medical University Of Vienna; Austri

    The Need And Experience Of Drawing With Ingeniuty. An Analysis Of The Graphic Practice In Architectural Education

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    [EN] The difficulty of teaching drawing during the first college stage, in visual arts, is clearly laborious, but not impossible. We know about students immaturity at the beginning of architectural learning and we know what professors in schools of architecture can offer them in relation to their drawing needs: increase their ability to think, feel, and their creative abilities, curiosity and ingenuity. But we do not intend to indicate the best method, but rather to reflect on the fact of the drawing itself, and how it is possible to discover its enigmatic part and necessity through three sketches. First: phonetic diversity; second: need of drawing what we see; third: ways of drawing with ingeniuty. This study is completed with an analysis of the early drawings in architectural education and the graphical maturity reached after an academic year.S2505251419

    A patient with an acute neurological deficit:is it really an ischemic stroke?

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    A patient with an acute neurological deficit: is it really an ischemic stroke?When a patient presents with acute neurological deficit, ischemic stroke is often assumed. However, a functional neurological disorder (FND) can also present with stroke-like symptoms. FND is a multifactorial condition to which biological, psychological and social factors predispose. The distinction between FND and acute ischemic stroke can be challenging, but is very important because fast reperfusion treatment is indicated for ischemic stroke. We show the specific features of FND in history and neurologic examination to pay attention to. Furthermore, we discuss the use of additional investigation to support the diagnosis. We describe two patients with an acute neurological deficit: a 34-year-old male with hemiparesis and speech disturbances due to FND, and a 51-year-old male with hemiparesis and hemi-ataxia due to ischemic stroke. These 2 patients demonstrate how challenging the distinction between FND and stroke may be.Conflict of interest and financial support: potential conflicts of interest have been reported for this article. ICMJE forms provided by the authors are available online along with the full text of this article.When a patient presents with acute neurological deficit, ischemic stroke is often assumed. However, a functional neurological disorder (FND) can also present with stroke-like symptoms. FND is a multifactorial condition to which biological, psychological and social factors predispose. The distinction between FND and acute ischemic stroke can be challenging, but is very important because fast reperfusion treatment is indicated for ischemic stroke. We show the specific features of FND in history and neurologic examination to pay attention to. Furthermore, we discuss the use of additional investigation to support the diagnosis. We describe two patients with an acute neurological deficit: a 34-year-old male with hemiparesis and speech disturbances due to FND, and a 51-year-old male with hemiparesis and hemi-ataxia due to ischemic stroke. These 2 patients demonstrate how challenging the distinction between FND and stroke may be.</p

    Laser-induced ultrafast demagnetization in the presence of a nanoscale magnetic domain network

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    International audienceFemtosecond magnetization phenomena have been challenging our understanding for over a decade. Most experiments have relied on infrared femtosecond lasers, limiting the spatial resolution to a few micrometres. With the advent of femtosecond X-ray sources, nanometric resolution can now be reached, which matches key length scales in femtomagnetism such as the travelling length of excited 'hot' electrons on a femtosecond timescale. Here we study laser-induced ultrafast demagnetization in [Co/Pd]30 multilayer films, which, for the first time, achieves a spatial resolution better than 100 nm by using femtosecond soft X-ray pulses. This allows us to follow the femtosecond demagnetization process in a magnetic system consisting of alternating nanometric domains of opposite magnetization. No modification of the magnetic structure is observed, but, in comparison with uniformly magnetized systems of similar composition, we find a significantly faster demagnetization time. We argue that this may be caused by direct transfer of spin angular momentum between neighbouring domains

    Confidence-Building Measures for Artificial Intelligence: Workshop Proceedings

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    Foundation models could eventually introduce several pathways for undermining state security: accidents, inadvertent escalation, unintentional conflict, the proliferation of weapons, and the interference with human diplomacy are just a few on a long list. The Confidence-Building Measures for Artificial Intelligence workshop hosted by the Geopolitics Team at OpenAI and the Berkeley Risk and Security Lab at the University of California brought together a multistakeholder group to think through the tools and strategies to mitigate the potential risks introduced by foundation models to international security. Originating in the Cold War, confidence-building measures (CBMs) are actions that reduce hostility, prevent conflict escalation, and improve trust between parties. The flexibility of CBMs make them a key instrument for navigating the rapid changes in the foundation model landscape. Participants identified the following CBMs that directly apply to foundation models and which are further explained in this conference proceedings: 1. crisis hotlines 2. incident sharing 3. model, transparency, and system cards 4. content provenance and watermarks 5. collaborative red teaming and table-top exercises and 6. dataset and evaluation sharing. Because most foundation model developers are non-government entities, many CBMs will need to involve a wider stakeholder community. These measures can be implemented either by AI labs or by relevant government actors
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