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660 results for “Biomechanics”
Data from: Convergence analysis of a finite element skull model of Herpestes javanicus (Carnivora, Mammalia): implications for robust comparative inferences of biomechanical function
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Raw data for: Biomechanical demands of percussive techniques in the context of early stone toolmaking
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Data from: Computational biomechanical analyses demonstrate similar shell-crushing abilities in modern and ancient arthropods
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Data from: Biomechanical factors influencing successful self-righting in the pleurodire turtle, Emydura subglobosa
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Data from: Linking the evolution of body shape and locomotor biomechanics in bird-line archosaurs
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Data from: Humans exploit the biomechanics of bipedal gait during visually guided walking over complex terrain
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Evolutionary biomechanics: hard tissues and soft evidence?
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Cephalic biomechanics underpins the evolutionary success of trilobites
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Data from: Resilin in the flight apparatus of Odonata (Insecta) – cap tendons and their biomechanical importance for the flight
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Hormone-regulated expansins - expression, localization and cell wall biomechanics in the control of Arabidopsis root growth
GEO Series GSE221857. Arabidopsis thaliana. 24 samples. Type: Expression profiling by high throughput sequencing.
Molecular Response to Biomechanical Loading in Human Growth Plate Cartilage
GEO Series GSE246390. Homo sapiens. 19 samples. Type: Expression profiling by high throughput sequencing.
Effect of mechanically responsive miRNAs on biomechanical properties of airway smooth muscle cells and their related drug development studies [mRNA-Seq]
GEO Series GSE206434. Homo sapiens. 9 samples. Type: Expression profiling by high throughput sequencing.
Nuclear Protein Aggregates Disrupt RNA Processing and Alter Biomechanics in a Muscle Cell Model of OPMD
GEO Series GSE277571. Homo sapiens. 18 samples. Type: Expression profiling by high throughput sequencing.
Less Deformable Erythrocyte Subpopulations Biomechanically Induce Endothelial Inflammation in Sickle Cell Disease
GEO Series GSE274340. Homo sapiens. 2 samples. Type: Expression profiling by high throughput sequencing.
Effect of mechanically responsive miRNAs on biomechanical properties of airway smooth muscle cells and their related drug development studies [miRNA-Seq]
GEO Series GSE206433. Homo sapiens. 9 samples. Type: Non-coding RNA profiling by high throughput sequencing.
Data from: Structural biomechanics determine spectral purity of bush-cricket calls
Bush-crickets (Orthoptera: Tettigoniidae) generate sound using tegminal stridulation. Signalling effectiveness is affected by the widely varying acoustic parameters of temporal pattern, frequency and spectral purity (tonality). During stridulation, frequency multiplication occurs as a scraper on one wing scrapes across a file of sclerotized teeth on the other. The frequency with which these tooth–scraper interactions occur, along with radiating wing cell resonant properties, dictates both frequency and tonality in the call. Bush-cricket species produce calls ranging from resonant, tonal calls through to non-resonant, broadband signals. The differences are believed to result from differences in file tooth arrangement and wing radiators, but a systematic test of the structural causes of broadband or tonal calls is lacking. Using phylogenetically controlled structural equation models, we show that parameters of file tooth density and file length are the best-fitting predictors of tonality across 40 bush-cricket species. Features of file morphology constrain the production of spectrally pure signals, but systematic distribution of teeth alone does not explain pure-tone sound production in this family.
Data from: Quantifying post- laser ablation prostate therapy changes on MRI via a domain-specific biomechanical model: preliminary findings
Focal laser ablation destroys cancerous cells via thermal destruction of tissue by a laser. Heat is absorbed, causing thermal necrosis of the target region. It combines the aggressive benefits of radiation treatment (destroying cancer cells) without the harmful side effects (due to its precise localization). MRI is typically used pre-treatment to determine the targeted area, and post-treatment to determine efficacy by detecting necrotic tissue, or tumor recurrence. However, no system exists to quantitatively evaluate the post-treatment effects on the morphology and structure via MRI. To quantify these changes, the pre- and post-treatment MR images must first be spatially aligned. The goal is to quantify (a) laser-induced shape-based changes, and (b) changes in MRI parameters post-treatment. The shape-based changes may be correlated with treatment efficacy, and the quantitative effects of laser treatment over time is currently poorly understood. This work attempts to model changes in gland morphology following laser treatment due to (1) patient alignment, (2) changes due to surrounding organs such as the bladder and rectum, and (3) changes due to the treatment itself. To isolate the treatment-induced shape-based changes, the changes from (1) and (2) are first modeled and removed using a finite element model (FEM). A FEM models the physical properties of tissue. The use of a physical biomechanical model is important since a stated goal of this work is to determine the physical shape-based changes to the prostate from the treatment, and therefore only physical real deformations are to be allowed. A second FEM is then used to isolate the physical, shape-based, treatment-induced changes. We applied and evaluated our model in capturing the laser induced changes to the prostate morphology on eight patients with 3.0 Tesla, T2-weighted MRI, acquired approximately six months following treatment. Our results suggest the laser treatment causes a decrease in prostate volume, which appears to manifest predominantly at the site of ablation. After spatially aligning the images, changes to MRI intensity values are clearly visible at the site of ablation. Our results suggest that our new methodology is able to capture and quantify the degree of laser-induced changes to the prostate. The quantitative measurements reflecting of the deformation changes can be used to track treatment response over time.
Data from: The function(s) of the bone ornamentation in the crocodylomorph osteoderms: a biomechanical model based on a finite element analysis
This paper aims at assessing the influence of the bone ornamentation and, specifically, of the associated loss of bone mass on the mechanical response of the crocodylomorph osteoderms. To this aim, we have performed three dimensional modeling and finite element analyses on a sample which includes both extant dry bones and well-preserved fossils tracing back to the Late Triassic. We simulated an external attack under variable angles on the apical surface of each osteoderm and further repeated the simulation on an equivalent set of smoothed 3D-modeled osteoderms. The comparative results evidenced that the presence of an apical sculpture has no significant influence on the von Mises stress distribution in the osteoderm volume although it involves a slight increase in its numerical score. Moreover, performing parametric analyses, we evidenced that the Young's modulus in the osteoderm which may vary depending on the bone porosity, the collagen fiber orientation or the calcification density has no impact on the von Mises stress distribution inside the osteoderm volume. As the crocodylomorph bone ornamentation is continuously remodeled by pit resorption and secondary bone deposit, we assume that the apical sculpture may be the outcome of a "trade-off" between the bone mechanical resistance and the implication in physiological functions. These physiological functions are indeed based on the set-up of a bone superficial vessel network and/or on the recurrent release of mineral elements into the plasma: heat transfers when basking and respiratory acidosis buffering during prolonged apnea in neosuchians and teleosaurids; compensatory homeostasis in response to general calcium deficiencies. On a general morphological aspect, the osteoderm geometrical variability within our sample lead us to assess that the global osteoderm geometry (whether square or rectangular) does not influence the von Mises stress whereas the presence of a dorsal keel would rather reduce the stress along the vertical axis.
Data from: Competing influences on morphological modularity in biomechanical systems: a case study in mantis shrimp
[No abstract entered]
Fig. 15 in The first dsungaripterid pterosaur from the Kimmeridgian of Germany and the biomechanics of pterosaur long bones
Fig. 15. Range of motion in transverse plane of the femur in a model of DFMMh/FV 500.
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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.