63,871 research outputs found
Author Correction: Multi-layer adaptation of group coordination in musical ensembles (Scientific Reports, (2019), 9, 1, (5854), 10.1038/s41598-019-42395-4)
No full textThe original version of this Article contained errors in the names of the authors Pauline M Hilt, Leonardo Badino, Alessandro D’Ausilio, Gualtiero Volpe, Serâ Tokay, Luciano Fadiga, Antonio Camurri which were incorrectly given as Hilt Pauline M, Badino Leonardo, D’Ausilio Alessandro, Volpe Gualtiero, Tokay Serâ, Fadiga Luciano, and Camurri Antonio In addition, this Article contained errors in the Acknowledgements section. “This work was supported by Min. Salute Ric. Finalizzata 2016 - Giovani Ricercatori to AD; POETICON++ FP7-ICT-288382 and EnTimeMent H2020-FETPROACT-824160 to LF.” now reads: “This work was supported by Min. Salute Ric. Finalizzata 2016 - Giovani Ricercatori to AD; POETICON++ FP7-ICT-288382 to LF; SIEMPRE FP7-ICT-250026 and EnTimeMent H2020-FETPROACT-824160 to AC and LF.” These errors have now been corrected in the HTML and PDF versions of the Article, and in the accompanying Supplementary Material
The Neurophysiology of Action Perception
No full textAction perception relies on a parieto-premotor brain network engaged during both perception of actions performed by conspecifics and actual execution of actions. Despite important overlap between neural activations during action observation and action execution, the functional relevance of these activities remains debated. In this chapter, we will discuss how the study of action perception may effectively be enriched by applying core principles of motor control. By doing so, we present evidences in favour of: (i) the presence of a modular control strategy in action observation; (ii) the role of motor inhibition in coping with unpredictable action outcomes. We conclude that reaffirming the strong parallel with motor control would provide important insight into the investigation of action perception mechanisms
High Intensity Land Treatment (HILT) Practices
No full textLand treatment is categorized in the Resource Conservation and Recovery Act of 1976 (RCRA) as one of the land disposal options for managing hazardous waste constituents within the defined treatment zone before such constituents can be transported to surface water, groundwater, or air. Under the authroity of Subtitle C of RCFA, the U.S. Environmental Protection Agency has promulgated regulations governing the treatment and disposal of hazardous wastes in land treatment units (40 CFR, Part 264, Subpart M, July 26, 1982). The objectives of this report were to identify land treatment facilities meeting the defined high intensity land treatment (HILT) criteria, and to describe the operation and management practices used at HILT facilities. A final objective was to compare operation and mangement practices used at HILT facilities with RCRA guidelines. The information needed to accomplish the objectives was obtained with data collection packets. A total of twelve land treatment facilities completed the data collection packets. Six of these land treatment facilities qualified as HILT facilities qualified as HILT facilities under the defined criteria used in this report. This repot was submitted in partial fulfillment of Cooperative Agreement No. CR-810979-02-0 by the Utah Water Research Laboratory at Utah State University, under the sponsorship of the Robert S. Kerr Environmental Research Laboratory, U.S. Environmental Protection Agency
HILT IV : subject interoperability through building and embedding pilot terminology web services
No full textA report of work carried out within the JISC-funded HILT Phase IV project, the paper looks at the project's context against the background of other recent and ongoing terminologies work, describes its outcome and conclusions, including technical outcomes and terminological characteristics, and considers possible future research and development directions. The Phase IV project has taken HILT to the point where the launch of an operational support service in the area of subject interoperability is a feasible option and where both investigation of specific needs in this area and practical collaborative work are sensible and feasible next steps. Moving forward requires detailed work, not only on terminology interoperability and associated service delivery issues, but also on service and end user needs and engagement, service sustainability issues, and the practicalities of interworking with other terminology services and projects in UK, Europe, and global contexts
Terminology server for improved resource discovery: analysis of model and functions
No full textThis paper considers the potential to improve distributed information retrieval via a terminologies server. The restriction upon effective resource discovery caused by the use of disparate terminologies across services and collections is outlined, before considering a DDC spine based approach involving inter-scheme mapping as a possible solution. The developing HILT model is discussed alongside other existing models and alternative approaches to solving the terminologies problem. Results from the current HILT pilot are presented to illustrate functionality and suggestions are made for further research and development
HILT : High-Level Thesaurus Project. Phase IV and Embedding Project Extension : Final Report
No full textEnsuring that Higher Education (HE) and Further Education (FE) users of the JISC IE can find appropriate learning, research and information resources by subject search and browse in an environment where most national and institutional service providers - usually for very good local reasons - use different subject schemes to describe their resources is a major challenge facing the JISC domain (and, indeed, other domains beyond JISC). Encouraging the use of standard terminologies in some services (institutional repositories, for example) is a related challenge. Under the auspices of the HILT project, JISC has been investigating mechanisms to assist the community with this problem through a JISC Shared Infrastructure Service that would help optimise the value obtained from expenditure on content and services by facilitating subject-search-based resource sharing to benefit users in the learning and research communities. The project has been through a number of phases, with work from earlier phases reported, both in published work elsewhere, and in project reports (see the project website: http://hilt.cdlr.strath.ac.uk/). HILT Phase IV had two elements - the core project, whose focus was 'to research, investigate and develop pilot solutions for problems pertaining to cross-searching multi-subject scheme information environments, as well as providing a variety of other terminological searching aids', and a short extension to encompass the pilot embedding of routines to interact with HILT M2M services in the user interfaces of various information services serving the JISC community. Both elements contributed to the developments summarised in this report
Beta Rebound as an Index of Temporal Integration of Somatosensory and Motor Signals
No full textModulation of cortical beta rhythm (15–30 Hz) is present during preparation for and execution of voluntary movements as well as during somatosensory stimulation. A rebound in beta synchronization is observed after the end of voluntary movements as well as after somatosensory stimulation and is believed to describe the return to baseline of sensorimotor networks. However, the contribution of efferent and afferent signals to the beta rebound remains poorly understood. Here, we applied electrical median nerve stimulation (MNS) to the right side followed by transcranial magnetic stimulation (TMS) on the left primary motor cortex after either 15 or 25 ms. Because the afferent volley reaches the somatosensory cortex after about 20 ms, TMS on the motor cortex was either anticipating or following the cortical arrival of the peripheral stimulus. We show modulations in different beta sub-bands and in both hemispheres, following a pattern of greater resynchronization when motor signals are paired with a peripheral one. The beta rebound in the left hemisphere (stimulated) is modulated in its lower frequency range when TMS precedes the cortical arrival of the afferent volley. In the right hemisphere (unstimulated), instead, the increase is limited to higher beta frequencies when TMS is delivered after the arrival of the afferent signal. In general, we demonstrate that the temporal integration of afferent and efferent signals plays a key role in the genesis of the beta rebound and that these signals may be carried in parallel by different beta sub-bands
Motor cortical inhibition during concurrent action execution and action observation
No full textAction Execution (AE) and Action Observation (AO) share an extended cortical network of activated areas. During coordinative action these processes also overlap in time, potentially giving rise to behavioral interference effects. The neurophysiological mechanisms subtending the interaction between concurrent AE and AO are substantially unknown. To assess the effect of AO on observer's corticomotor drive, we run one electromyography (EMG) and three Transcranial Magnetic Stimulation (TMS) studies. Participants were requested to maintain a steady hand opening or closing posture while observing the same or a different action (hand opening and closing in the main TMS study). By measuring Cortical Silent Periods (CSP), an index of GABAB-mediated corticospinal inhibitory strength, we show a selective reduction of inhibitory motor drive for mismatching AE-AO pairs. The last two TMS experiments, show that this mismatch is computed according to a muscle-level agonist-antagonist representation. Combined, our results suggest that corticospinal inhibition may be the central neurophysiological mechanism by which one's own motor execution is adapted to the contextual visual cues provided by other's action
A SKOS Core approach to implementing an M2M terminology mapping server
No full textThe proliferation of distributed digital libraries and repositories has increased the need for improved interoperability between terminologies in order to facilitate user access to the discrete heterogeneous digital objects held therein. The emergence of the Simple Knowledge Organization System (SKOS) Core is a useful development in this context. In this paper we describe a SKOS Core approach to implementing a web services (i.e. M2M) terminology server employing terminology mapping and using SKOS Core to wrap terminology responses. Aspects advantageous to this approach are explored, as are issues and areas for future research
Publisher Correction: Anticipatory postural adjustments during joint action coordination (Scientific Reports, (2019), 9, 1, (12328), 10.1038/s41598-019-48758-1)
No full textThe original PDF version of this Article contained incorrect A-F labels in Figure 1A and 1B. This has now been corrected in the PDF; the HTML version of the paper was correct from the time of publication
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