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1,952 results for “actionality”
Differential contributions of the two human cerebral hemispheres to action timing
<p>Rhythmic actions benefit from synchronization with external events. Auditory-paced finger tapping studies indicate the two cerebral hemispheres preferentially control different rhythms. It is unclear whether left-lateralized processing of faster rhythms and right-lateralized processing of slower rhythms bases upon hemispheric timing differences that arise in the motor or sensory system or whether asymmetry results from lateralized sensorimotor interactions. We measured fMRI and MEG during symmetric finger tapping, in which fast tapping was defined as auditory-motor synchronization at 2.5 Hz. Slow tapping corresponded to tapping to every fourth auditory beat (0.625 Hz). We demonstrate that the left auditory cortex preferentially represents the relative fast rhythm in an amplitude modulation of low beta oscillations while the right auditory cortex additionally represents the internally generated slower rhythm. We show coupling of auditory-motor beta oscillations supports building a metric structure. Our findings reveal a strong contribution of sensory cortices to hemispheric specialization in action control.</p>
Data from: The adhesion function of the sodium channel beta subunit (β1) contributes to cardiac action potential propagation
Computational modeling indicates that cardiac conduction may involve ephaptic coupling - intercellular communication involving electrochemical signaling across narrow extracellular clefts between cardiomyocytes. We hypothesized that β1(SCN1B) -mediated adhesion scaffolds trans-activating NaV1.5 (SCN5A) channels within narrow (V1.5. Smart patch clamp (SPC) indicated greater sodium current density (INa) at perinexi, relative to non-junctional sites. A novel, rationally designed peptide, βadp1, potently and selectively inhibited β1-mediated adhesion, in electric cell-substrate impedance sensing studies. βadp1 significantly widened perinexi in guinea pig ventricles, and selectively reduced perinexal INa, but not whol e cell INa, in myocyte monolayers. In optical mapping studies, βadp1 precipitated arrhythmogenic conduction slowing. In summary, β1-mediated adhesion at the perinexus facilitates action potential propagation between cardiomyocytes and may represent a novel target for anti-arrhythmic therapies.
Data from: Concurrent visual and motor selection during visual working memory guided action
Visual working memory enables us to hold onto past sensations in anticipation that these may become relevant for guiding future actions. Yet laboratory tasks have treated visual working memories in isolation from their prospective actions and have focused on the mechanisms of memory retention rather than utilization. To understand how visual memories become used for action, we linked individual memory items to particular actions and independently tracked the neural dynamics of visual and motor selection when memories became used for action. This revealed concurrent visual-motor selection, engaging appropriate visual and motor brain areas at the same time. Thus we show that items in visual working memory can invoke multiple, item-specific, action plans that can be accessed together with the visual representations that guide them, affording fast and precise memory-guided behavior.
Figure 1 in Action of the saproxylic scarab larva Cetonia aurataeformis (Coleoptera: Scarabaeoidea: Cetoniidae) on woody substrates
Figure 1. Cetonia aurataeformis (Photo: J. Ordoñez, with permission).
Figure 1 from: Pavliuk B, Stechyshyn I, Chubka M, Hroshovyi T (2021) Preclinical safety evaluation of drone brood homogenate and justification of pharmacological action. Pharmacia 68(4): 771-777. https://doi.org/10.3897/pharmacia.68.e70678
Figure 1 Relationships between metabolic syndrome, insulin resistance, pre-diabetes and type 2 diabetes mellitus.
Supplementary material 1 from: Petriccione B, Bricca A (2019) Thirty years of ecological research at the Gran Sasso d'Italia LTER site: climate change in action. In: Mazzocchi MG, Capotondi L, Freppaz M, Lugliè A, Campanaro A (Eds) Italian Long-Term Ecological Research for understanding ecosystem diversity and functioning. Case studies from aquatic, terrestrial and transitional domains. Nature Conservation 34: 9-39. https://doi.org/10.3897/natureconservation.34.30218
: Data type: measurements
Hunters' Willingness to Adopt and Support Biosecurity Actions to Prevent the Spread of Rabbit Hemorrhagic Disease
<p>These are the data published in Shapiro et al. "Engaging Stakeholders in Wildlife Disease Management: Hunters’ Willingness to Adopt and Support Biosecurity Actions to Prevent the Spread of Rabbit Hemorrhagic Disease" Conservation Science and Practice, published online on 12/22/22.</p> <p>Note: We uploaded the corrected dataset (Version 2) on 12/23/22. We found coding errors for the gender and age variables in the original data set (Version 1), which we corrected. The updated data set also contains a Case Number variable (which was randomly generated by SPSS) and the RHDV2 status of the state in which respondents resided at the time of the survey. This binary variable (0=no RHDV2; 1=RHDV2 cases) was calculated using people’s state, the date they took the survey, and the latest RHDV2 maps.</p>
The pain hidden in your hands: facial expression of pain reduces the influence of goal-related information in action recognition
<p>data and code associated to manuscript entitled "The pain hidden in your hands: facial expression of pain reduces the influence of goal-related information in action recognition"</p>
InHARD-DT - Industrial Human Action Recognition Dataset - Digital Twin
<p>This paper explores the use of a Digital Twin of a real industrial workstation involving assembly tasks with a robotic arm interfaced with Virtual Reality (VR) to extract a digital human model. The DT simulates assembly operations performed by humans aiming to generate self-labeled data. Thereby, a Human Action Recognition dataset named InHARD-DT was created to validate a real use case in which we use the acquired auto-labeled DT data of the virtual representation of the InHARD dataset to train a Spatial–Temporal Graph Convolutional Neural Network with skeletal data on one hand. On the other hand, the Physical Twin (PT) data of the InHARD dataset was used for testing. Therefore, we introduce a RGB+S dataset named “Industrial Human Action Recognition Dataset - Digital Twin” (InHARD-DT) from a real-world setting for industrial human action recognition. </p> <p>We invited 12 distinct subjects from the LINEACT laboratory (4 females and 8 males) for the DT data collection to perform the same assembly tasks of the InHARD dataset (link below) in Virtual Reality via a VR application of an industrial real workstation. This dataset contains 13 different industrial action classes and over 4800 action samples. The introduction of this dataset should allow us the study and development of various learning techniques for the task of human actions analysis inside industrial environments involving human robot collaborations. It can be used also in cross-validation scenarios where the training phase can be done using the Physical Twin (PT) data of the InHARD dataset (real world scenarios) and then test using Digital Twin (DT) data of the InHARD-DT dataset which is the main objective of this paper. </p>
Figure 1 in Reviewing the status and demise of the Endangered Eld's deer and identifying priority sites and conservation actions in Cambodia
Figure 1: Map of protected areas in Cambodia.
Fig. 1 in Mechanisms of action for the anti-obesogenic activities of phytochemicals
Fig. 1. Major causes of obesity and associated complications.
Fig. 2 in Astragalus species: Phytochemistry, biological actions and molecular mechanisms underlying their potential neuroprotective effects on neurological diseases
Fig. 2. Chemical structure of Astragalus polysaccharide (Liu et al., 2020).
Fig. 4 in Astragalus species: Phytochemistry, biological actions and molecular mechanisms underlying their potential neuroprotective effects on neurological diseases
Fig. 4. Astragalus spinosus (Alsirhan, 2002).
Fig. 11 in Antihypertensive phytocomplexes of proven efficacy and well-established use: Mode of action and individual characterization of the active constituents
Fig. 11. Antihypertensive principles of Punica granatum L. fruits extracts and juices.
Fig. 6 in Antihypertensive phytocomplexes of proven efficacy and well-established use: Mode of action and individual characterization of the active constituents
Fig. 6. The most studied garlic constituents.
Fig. 4 in Antihypertensive phytocomplexes of proven efficacy and well-established use: Mode of action and individual characterization of the active constituents
Fig. 4. Constituents of E. ulmoides Oliv. singly studied for antihypertensive effects.
Fig. 13 in Antihypertensive phytocomplexes of proven efficacy and well-established use: Mode of action and individual characterization of the active constituents
Fig. 13. Antihypertensive principles of Z. officinale L.
Fig. 9 in Antihypertensive phytocomplexes of proven efficacy and well-established use: Mode of action and individual characterization of the active constituents
Fig. 9. Principal constituents of Arbutus unedo L.infusions examined for antihypertensive activity.
Lever Action 1873
Source: Objaverse 1.0 / Sketchfab
Plastic Waste Pollution in Lorry Stations in Accra: Challenges and Solutions; An In-Depth Analysis and Action Plan
<p>This report aims to document the extent of plastic waste pollution in lorry stations in Accra, assess its impact on public health and propose actionable solutions for effective waste management in stations. By highlighting the severity of the issue as well as providing recommendations for solutions, we seek to inform and inspire municipal assemblies, policymakers and other stakeholders to take decisive action against plastic waste pollution in lorry stations in Accra. </p> <p>Plastic waste pollution is a growing concern in Ghana, with lorry stations being particularly affected due to high foot traffic and inadequate waste management infrastructure within stations. This report is significant because of its implications for addressing public health hazards, continuing the ongoing efforts to reduce plastic pollution in Ghana and addressing community concerns. Through this comprehensive analysis, Mckingtorch Africa aims to drive meaningful change and create a cleaner, healthier Ghana for present and future generations.</p>
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.