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6,335 results for “direct”
Reduced isometric knee extensor force following anodal transcranial direct current stimulation of the ipsilateral motor cortex
<p>Background: The goal of this study was to determine if 10-min of anodal transcranial direct current stimulation (a-tDCS) to the motor cortex (M1) is capable of modulating quadriceps isometric maximal voluntary contraction (MVC) force or fatigue endurance contralateral or ipsilateral to the stimulation site.</p> <p>Results: The main finding of this study was a significant interaction effect for stimulation condition x leg tested x time [F(1,60) =7.156, p = 0.010, ηp2 = 0.11] which revealed significant absolute KE MVC force impairments in the contralateral leg following s-tDCS (p < 0.001, d =1.2) and in the ipsilateral leg following a-tDCS (p < 0.001, d = 1.09). A significant interaction effect for condition x leg tested [F(1,56) = 8.12, p = 0.006, ηp2 = 0.13], showed a significantly lower left quadriceps (ipsilateral to tDCS) relative MVC force with a-tDCS, versus s-tDCS [t(15) = -3.07, p = 0.016, d = -0.77]. There was no significant difference between the relative right quadriceps (contralateral to tDCS) MVC force for a-tDCS and s-tDCS. Although, there was an overall significant [F(1,56) = 8.36, p < 0.001] 12.1% force decrease between the first and twelfth MVC repetitions, there were no significant main or interaction effects for fatigue index force.</p> <p>Conclusion: Hence, a-tDCS may be ineffective at increasing maximal force or endurance and instead may be detrimental to quadriceps force production.</p>
Towards future directions in data-integrative supervised prediction of human aging-related genes
<p><strong>Corresponding author:</strong> <a href="http://www.nd.edu/~tmilenko">Prof. Tijana Milenković</a>, tmilenko AT nd DOT edu.</p> <p><strong>Detailed descriptions of the data and program</strong>: check <a href="https://nd.edu/~cone/DirectionsAging/">our paper's website</a>.</p> <p><strong>Reference</strong>: Qi Li, Khalique Newaz, and Tijana Milenković (2022). <strong>Towards future directions in data-integrative supervised prediction of human aging-related genes.</strong><em> under review</em></p>
Direct Observation of the Transitional Stage of Mixing-State- Related Absorption Enhancement for Atmospheric Black Carbon
<p>Data for article <em>Direct Observation of the Transitional Stage of Mixing-State-Related Absorption Enhancement for Atmospheric Black Carbon.</em></p>
High resolution solar irradiance variability climatology dataset part 1: direct, diffuse, and global irradiance
<p><strong>Dataset paper</strong></p> <p>See the official dataset description paper (preprint) over at <a href="https://essd.copernicus.org/preprints/essd-2022-456/">Earth System Science Data</a>.</p> <p><strong>Dataset description</strong></p> <p>High resolution surface solar irradiance observations from the Baseline Surface Radiation Network (BSRN) of Cabauw, the Netherlands. This dataset spans 10 years, <em>from 2011-02 until 2020-12-31</em>.</p> <p>This dataset is the preprocessed 1 Hz observational record of direct, diffuse, and global horizontal irradiance, which is the basis for the official BSRN 1-minute dataset published at <a href="https://doi.pangaea.de/10.1594/PANGAEA.940531">PANGAEA</a>. Please refer to the official dataset for detailed metadata, instrument information, quality control flags, the full radiation balance and more (1 minute resolution). More information about the observational site Cabauw can be found at the <a href="https://ruisdael-observatory.nl/cabauw/">Ruisdael Observatory website</a>, and more general information about BSRN is <a href="https://essd.copernicus.org/articles/10/1491/2018/">published on ESSD</a>.</p> <p><strong>Part 1 of 2</strong></p> <p>This dataset is the basis for an analysis of surface solar irradiance variability, derived variables, supplementary meteorological data, and quicklooks, available in part 2 here: <a href="https://doi.org/10.5281/zenodo.7092058">https://doi.org/10.5281/zenodo.7092058</a></p> <p><strong>Usage disclaimer</strong></p> <p>While resampling this 1-Hz data to 1-minute, with the official BSRN quality flags, should reproduce an identical dataset to the official 1-minute BSRN dataset, this has not yet been validated for this version. When you require the most reliable version of the radiation measurements, where variability at a higher resolution than 1 minute is not of concern, please refer to the official BSRN dataset at PANGAEA.</p>
Solid-sorbent direct air capture global performance data
<p>Global performance data for solid-sorbent direct air capture utilizing amine-functionalized sorbent (i.e., Lewatit VP OC 1065) in a steam-assisted vacuum-pressure temperature swing adsorption cycle.</p>
A dual selection system for directed evolution to identify allosteric transcription factor PobR variants responsive to different aromatic compounds
<p>This dataset includes all the raw data of our characterization experiments during the work titled “A dual selection system for directed evolution to identify allosteric transcription factor PobR variants responsive to different aromatic compounds”.</p>
Code and data for directed emission from uniformly excited non-Hermitian photonic meta-structures
<p>Wolfram Mathematica notebook (.nb) used to generate figures, data, and confirm analytical results presented in the main work. Data generated from the notebook is included here as separate text files (.dat) as well.</p>
Data from: In both directions: Expansions of European land snails to the north and south from glacial refugia
<p><strong>Aim</strong>: The location of glacial refugia and the timing of postglacial colonisations remain of interest because together they inform about the ability of species to track shifting climates. In the associated paper, we tested a hypothesis that a central European forest land snail species survived in a northern refugium, which was proposed based on fossil finds indirectly dated to the Last Glacial Maximum and Late Glacial. We assessed the credibility of our results by comparing them to those obtained from three other, broadly sympatric land snail species.</p> <p><strong>Location</strong>: Central Europe and the Balkans.</p> <p><strong>Taxon</strong>: Pulmonate land snails: <em>Monachoides incarnatus</em> (Hygromiidae) and <em>Helix pomatia</em>, <em>Helix thessalica,</em> and <em>Caucasotachea vindobonensis</em> (Helicidae).</p> <p><strong>Methods</strong>: We used continuous phylogeographic analysis of mitochondrial data to trace the origin of postglacially expanding lineages and direct radiocarbon dating to verify the presumed glacial presence of <em>M. incarnatus</em> on the territories of Czechia and Slovakia. Geolocated concatenated sequences of partial 16S rRNA and cytochrome c oxidase subunit I were analysed using BEAST 1.10.4. and conclusions were drawn from the reconstructed geographic positions of internal nodes in the resulting phylogenetic trees.</p> <p><strong>Data</strong>: Input files for the phylogeograpic analyses, containing the sequence alignments and analysis settings, and the trees summarizing the results of the analyses.</p>
Data for: Direct and indirect effects of management and landscape on biological pest control and crop pest infestation in apple orchards
<p>Biological pest control, relying on naturally occurring predator-prey dynamics, is considered a key element to achieve more sustainable farming systems. However, the combined effects of local management and landscape factors on communities of natural enemies as well as the cascading effects on pest infestations are rarely addressed, especially in perennial crops. Here, we used Piecewise Structural Equation Modelling (PSEM) to test direct and indirect effects of landscape composition, landscape configuration and local management practices on natural enemy communities, the pest control services they provide and ultimately on pest infestation and pest-related yield damage in apple crops. To this end, we surveyed 12 organic and 12 Integrated Pest Management (IPM) orchards during three consecutive years, and we also established a semi-natural benchmark to quantify the extent to which predator communities in the orchards were degraded. Natural enemies had a different community composition and were more abundant in organic orchards compared to IPM orchards. This had a small and positive effect on sentinel egg predation rates in organic orchards, but overall had very little impact on actual apple pest infestation. On the contrary, apple pest infestation levels were directly and positively affected by organic management practices and by increasing semi-natural habitat cover and landscape edge density. Compared to a semi-natural benchmark, both agricultural management systems showed degraded predator communities, which translated into an impaired delivery of biological control services. Synthesis and applications. Our results indicate that organic management and habitat conservation can enhance natural enemies and stimulate pest control, but also show that these factors can enhance pest infestations and can even lead to an overall increase in pest-related crop damage. Our study thus highlights the complex interplay of ecosystem services and disservices provided by biodiversity, which should be taken into account when advising farmers, policy makers and land managers on effective and sustainable strategies to control pest species and safeguard crop production.</p>
EuroparlExtract - Directional Parallel Corpora Extracted from the European Parliament Proceedings Parallel Corpus
<p>This dataset contains directional parallel corpora extracted from the European Parliament Proceedings Corpus (Europarl) v7 created by Philipp Koehn (see http://www.statmt.org/europarl/). For the extraction, the EuroparlExtract corpus processing toolkit by Michael Ustszewski (2017) was used. EuroparlExtract is freely available under the MIT License (see https://github.com/mustaszewski/europarl-extract).</p>
Raw data for "Direct Observation of Atmospheric Turbulence with a Video-rate Wide-field Wavefront Sensor" (Part. 1)
<p>Raw data for "Direct Observation of Atmospheric Turbulence with a Video-rate Wide-field Wavefront Sensor" (Part. 1). For usage, please refer to https://github.com/freemercury/Widefield_wavefront_sensor.</p>
Raw data for "Direct Observation of Atmospheric Turbulence with a Video-rate Wide-field Wavefront Sensor" (Part. 2)
<p>Raw data for "Direct Observation of Atmospheric Turbulence with a Video-rate Wide-field Wavefront Sensor" (Part. 2). For usage, please refer to https://github.com/freemercury/Widefield_wavefront_sensor.</p>
Additional data for: Directing Min protein patterns with advective bulk flow
<p>Data and analysis associated with 2024 addition to:<br>"Direction Min protein patterns with advective bulk flow" (NatComms, 2023)<br>Companion repository to <a href="../records/7339803">10.5281/zenodo.7339803</a></p> <p>Please consider the readme for more information.</p>
Interfacial bonding strength along normal and shear direction of FMLs
<p>Interfacial bonding strength along normal and shear direction - lap_shear_Sandblasted at 1,3,5 bar</p>
Dataset for Direct comparison of different protocols to obtain Surface enhanced Raman spectra of human serum
<p>This dataset contains all the spectra used in "Direct comparison of different protocols to obtain Surface enhanced Raman spectra of human serum ". Data are available in a compressed folder ("Dataset serum spectra") containing all the 75 TXT files (1 file=1 spectrum) of the same serum sample analyzed with the 5 protocols presented in the article. </p> <p>The script employed for loading, preprocessing, and analyzing the dataset is named "Script for spectra analysis." Furthermore, the DOCX file ("Instructions") provides details concerning the metadata embedded within the title of each TXT file. </p>
Evaluation of seed-dispersal services by ants at a temperate pasture: Results of direct observations in an ant suppression experiment
<p><em>Ant dispersal</em></p> <p>Ants disperse seeds of many plant species adapted to myrmecochory. While advantages of this ant–plant mutualism for myrmecochorous plants (myrmecochores) have been previously studied in temperate region mostly in forests, our study system was a pasture. Moreover, we used a unique combination of observing the effect of ant‐activity suppression on ant dispersal and comparison of the contribution of ant and unassisted dispersal to the distance from mother plant. We established plots without and with ant‐activity suppression (enclosures). We offered diaspores of a myrmecochorous (<em>Knautia arvensis</em>), and a non‐myrmecochorous (<em>Plantago lanceolata</em>) species in a choice test and followed ants carrying diaspores during days and nights (focus of previous studies was on diurnal dispersal). We measured frequency and distances of ant dispersal and compared them with unassisted dispersal recorded using sticky trap method. The dispersal frequency was lower in enclosures (3.16 times). Ants strongly preferred diaspores of the myrmecochore to non‐myrmecochore with 586 and 42 dispersal events, respectively (out of 6400 diaspores of each species offered). Ant dispersal resulted in more even and on average longer distances (maximum almost tenfold longer, 994 cm) in comparison to unassisted dispersal. Ant dispersal altered the distribution of distances of the myrmecochore from roughly symmetric for unassisted dispersal to positively skewed. Ants dispersed heavier diaspores farther. Ants dropped the majority of diaspores during the dispersal (which reduces clustering of seeds), while several (11%) were carried into anthills. Anthills are disturbed microsites presumably favorable for germination in competitive habitats. Ants provided non‐negligible dispersal services to myrmecochorous <em>K. arvensis</em> but also, to a lesser extent, of non‐myrmecochorous <em>P. lanceolata</em>.</p> <p><em>Unassisted dispersal</em></p> <p>A sticky trap of the same size as the experimental plots of the cafeteria experiment (3 m × 3 m) was used to record unassisted dispersal (i.e., without any biotic dispersal agent, mostly by gravity and additionally wind). We used linoleum covered with insect glue to trap the falling diaspores. Five full‐sized individuals (with majority of infructescences with mature seeds) of <em>K. arvensis</em> were fixed in a water container in the center of the plot for approximately 10 days. The procedure was repeated five times during July and August. The distances of trapped diaspores were measured in the same manner as in the case of ant dispersal, thus the dispersal by ants and unassisted dispersal can be compared.</p>
Flower position within plants influences reproductive success both directly and via phenology
<div> <p>This data set includes data from recordings of 5883 individual flowers of the perennial herb <em>Lathyrus vernus</em> belonging to 558 flowering events (i.e. one plant individual flowering in one year) over three years (1987-1989). It includes data on phenology, reproductive succress and seed predation of individual flowers, as well as data on the position of the flower within the raceme, and of the raceme within the plant. The data wree collected in a population of<em> L. vernus</em> located in a deciduous forest in southeast Sweden (58.9496 N, 17.6097 E). </p> <p> </p> </div>
Dataset for " Direct or Indirect Sonication in Ecofriendly MoS2 Dispersion for NO2 and NH3 Gas-Sensing Applications
<p>This zip file contains the opj data of the published paper entitled: Direct or Indirect Sonication in Ecofriendly MoS2 Dispersion for NO2 and NH3 Gas-Sensing Applications published in ACS Omega 2024, 9, 23, 2597-25308</p> <p>DOI: <a title="DOI URL" href="https://doi.org/10.1021/acsomega.4c03166">10.1021/acsomega.4c03166</a></p> <p> </p>
Data from: Direct observational evidence of strong CO2 uptake in the Southern Ocean
<p>These are the eddy covariance air-sea CO2 flux dataset, the subsampled CO2 flux products, and the neural network-based interpolation of the SOCCOM-weighted and SOCAT plus SOCCOM datasets. These datasets are used in the article 'Direct observational evidence of strong CO2 uptake in the Southern Ocean'.</p>
Magnetic Hair Tactile Sensor for Directional Pressure Detection
<p><span>Tactile sensing in the human body is achieved via the skin. This has inspired the fabrication of synthetic skins with pressure sensors for potential applications in robotics, bio-medicine, and human-machine interfaces. Tactile sensors based on magnetic elements are promising as they provide high sensitivity and a wide dynamic range. However, current magnetic tactile sensors mostly detect pressures of solid objects and operate at relatively high forces about 100 mN. Here, we address these limitations by manufacturing soft, stretchable, and hair-like structures that are permanently magnetized to achieve high-resolution, cost-effective, and high-resolution pressure sensing. Combining these hair-like structures with advances in 3D magnetic-field measurements allows us to monitor directional tactile pressures without solid contact. To prove the concept of this technology, we built a bio-inspired soft device with a hairy structure that senses and reports environmental mechanical stresses, similar to that of human skin. Simple self-assembly of the soft magnetic hair structure makes our approach easy to scale for large-area applications.</span></p>
ScienceDex guides
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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.