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1,162 results for “fiber”
Data from: Effect on electrospun fibers by synthesis of high branching poly-lactic (PLA)
Poly-lactic electrospun porous fibers have been widely used in tissue engineering scaffolds. However, the application of linear Poly-lactic is limited due to its poor hydrophilicity, which leads to phase separation and has been seldom used in porous fiber preparation. Instead, using of branching Poly-lactic acts as a new effective method to prepare porous fibers because it can increase Poly-lactic polar property and make it easy to be formulated in the following application. In current study, we prepared an ultra-high molecular weight of high branching Poly-lactic with glycerol as the initiator by controlling the ring-opening polymerization time, adding amount of catalyst and glycerol. The structure, molecular weight and thermal properties of copolymers were tested subsequently. The result showed that the surface of the high branching Poly-lactic films is smooth, hydrophilic and porous. This branching Poly-lactic formed electrospun porous fibers, possessed a strong adsorption of silver ion. Comparing with the application of linear Poly-lactic and 3-arm Poly-lactic materials, our study provided a simple and efficient way to synthesize branching Poly-lactic polymer and prepare electrospun porous fibers, which may provide potential applications in the field of biomaterials for tissue engineering or antibacterial dressing.
Data from: Learning from the past: a reverberation of past errors in the cerebellar climbing fiber signal
The cerebellum allows us to rapidly adjust motor behavior to the needs of the situation. It is commonly assumed that cerebellum-based motor learning is guided by the difference between the desired and the actual behavior, i.e., by error information. Not only immediate but also future behavior will benefit from an error because it induces lasting changes of parallel fiber synapses on Purkinje cells (PCs), whose output mediates the behavioral adjustments. Olivary climbing fibers, likewise connecting with PCs, are thought to transport information on instant errors needed for the synaptic modification yet not to contribute to error memory. Here, we report work on monkeys tested in a saccadic learning paradigm that challenges this concept. We demonstrate not only a clear complex spikes (CS) signature of the error at the time of its occurrence but also a reverberation of this signature much later, before a new manifestation of the behavior, suitable to improve it.
Data from: Molecular analysis of caffeoyl residues related to pigmentation in green cotton fibers
The pigment components in green cotton fibers were isolated and identified as 22-O-caffeoyl-22-hydroxymonodocosanoin and 22-O-caffeoyl-22-hydroxydocosanoic acid. The concentration of 22-O-caffeoyl-22-hydroxymonodocosanoin was correlated positively with the degree of green fibers of color, indicating a role of caffeoyl derivatives in pigmentation of green cotton fibers. Upland cotton (Gossypium hirsutum L.) contains four genes (Gh4CL1 to Gh4CL4) encoding 4-coumarate:CoA ligase (4CL), key enzymes of the phenylpropanoid biosynthesis pathway. In 15 to 24 days-post anthesis fibers, the expression level of Gh4CL1 was very low, Gh4CL3 had a similar expression level between the white and green cottons, Gh4CL2 had a significantly higher expression level in the green fibers than in the white fibers, whereas Gh4CL4 seemed to have a higher expression level in the white fibers than in the green fibers. According to enzyme kinetics analysis, Gh4CL1 displayed a preference for 4-coumarate, Gh4CL3 and Gh4CL4 exhibited a somewhat low but still prominent activity towards ferulate, while Gh4CL2 had a strong preference for caffeate and ferulate. These results suggest that Gh4CL2 might be involved in the metabolism of caffeoyl residues and related to pigment biosynthesis in green cotton fibers. Our findings provide insights for understanding biochemical and molecular mechanisms of pigmentation in green cotton fibers.
FIGURE 8. S in Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki)
FIGURE 8. S. klompeni sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.
FIGURE 7. S in Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki)
FIGURE 7. S. heatherae sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.
FIGURE 6. S in Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki)
FIGURE 6. S. pseudonumerosus sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.
FIGURE 10. S in Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki)
FIGURE 10. S. zurowskii sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.
FIGURE 4. S in Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki)
FIGURE 4. S. testiculatus sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.
FIGURE 5. S in Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki)
FIGURE 5. S. faini sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.
FIGURE 2 in Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki)
FIGURE 2. Scheme of undercoat samplings.
FIGURE 11. S in Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki)
FIGURE 11. S. parahumilis sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.
FIGURE 9. S in Fur mites of the genus Schizocarpus Trouessart (Acari: Chirodiscidae) parasitizing the Eurasian beaver Castor fiber belorussicus Lavrov (Rodentia: Castoridae) in NE Poland (Suwałki)
FIGURE 9. S. gozdziewskii sp. nov., male: A—opisthosoma in dorsal view; B—same, in ventral view.
Data series of seismic events for the article "Seismic monitoring using the telecom fiber network"
<p>The file "catalog.h5" contains the catalog of seismic events analyzed in the paper "Seismic monitoring using the telecom fiber network" by S. Donadello et al., Commun Earth Environ 5, 178 (2024) <a href="https://doi.org/10.1038/s43247-024-01338-2">https://doi.org/10.1038/s43247-024-01338-2</a> (formerly "Earthquake observatory with coherent laser interferometry on the telecom fiber network" on arXiv preprint).</p> <p>The reported data correspond to raw recordings, acquired by coherent interferometry techniques on a telecommunication fiber (see also <a href="doi.org/10.1109/TIM.2023.3288255">https://doi.org/10.1109/TIM.2023.3288255</a>), and decimated to a lower sampling rate.</p> <p>The catalog is organized as about 900 seismic events in the period between June 19th, 2021 and Sept. 26th, 2022, between Feb. 6th and March 23th 2023, and between Nov. 9th, 2022 and Nov. 18th, 2022, according to the criteria described in the paper.</p> <p>A detailed description of the ".h5" file format is provided in "h5_file_description.txt".</p> <p>A Python3 script "h5_cat_parser.py" for data interpretation in terms of standard python structures is provided.</p>
Plastic Fiber Low Light Measurement Data
<p>The FleX-RAY project employed plastic scintillating fibres to detect high energy (X-ray, gamma, cosmic) photons and particles. Due to the very low light yields expected, silicon photomultipliers (SiPMs) were used to detect the visible light generated by scintillation. Due to the very high sensitivity of SiPMs, coating of the fibres was required, to shield them from ambient light. A custom set-up was constructed with a twofold purpose. One, to measure the effectiveness of the coating in preventing ambient light from entering the fibres, and second, to measure the attenuation of light travelling through the fibres.</p> <p>This repository contains the following data:</p> <p>Data file titled "fibreCoatingAndTransmissionEfficiency.xlsx".</p> <p>A description of the setup, the instruments used and the methodology devised to determine the required parameters are described in the following publication: Comanescu, B. et al. (2023) ‘Plastic Fiber Low Light Measurement Method’, in The eurasia proceedings of science, technology, engineering & mathematics. IConTES 2023: International Conference on Technology, Engineering and Science, ISRES Publishing, pp. 641–647.</p> <p>This work was financed by the European Union's Horizon 2020 program under grant agreement No. 899634.</p>
Polyamine Metabolism Dysregulation Contributes to Muscle Fiber Vulnerability in ALS
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Dataset for publication Synthesis of tubular MXenes with carbon fiber template and use as anodes in lithium-ion batteries
<p>The dataset contains all relevant data and figures regarding the manuscript "Synthesis of tubular MXenes with carbon fiber template and use as anodes in lithium-ion batteries".</p> <p>All Figures are in tiff format and all relevant data are in csv formats. </p> <p>The data in csv format are labelled as specified in the corresping images (e.g. Figure 1a csv file corresponds to data used to plot graphs from Figure 1a etc.). </p> <p>Axis labeling and units are always specified at the beginning of individual columns. If more than one curve was plotted from the csv file, the conditions can also be found at the beginning of corresponding columns.</p>
In-situ Characterization Data for Carbon Fiber Composite Manufacturing
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Watt-level 743 nm source by second-harmonic generation of a cascaded phosphosilicate Raman fiber amplifier
<p>Open access data set for the manuscript "Watt-level 743 nm source by second-harmonic generation of a cascaded phosphosilicate Raman fiber amplifier" to be published in Optics Letters.</p>
C57BL6 Mouse with headcap and fibers
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Data publication: Numerical simulations of pullout test of steel fiber embedded in high performance concrete (HPC)
<p>This data set contains all necessary inputs for the numerical simulations of pullout test of steel fiber embedded in high performance concrete, including discretization data, boundary conditions, material parameters and numerical results. The discretization is realized in terms of the finite element method. </p>
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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.