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3,472 results for “Balance”
Amacrine cells differentially balance zebrafish colour circuits in the central and peripheral retina
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Structural genomic variation and behavioral interactions underpin a balanced sexual mimicry polymorphism
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Integrating predator energetic balance, risk-taking behavior and microhabitat in functional response to untangle indirect interactions in a multispecies vertebrate community
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Distributed flux balance analysis simulations of serial biomass fermentation by two organisms
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Data from: Balancing risk and reward: mating opportunity influences thermal refuge use in fiddler crabs
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Data and code for: River planforms originate from (im)balance between riverbank erosion and bar accretion
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The impact of different energy sources on redox balance during endometriotic cyst laparoscopy
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Archived data for: Balancing selection, genetic drift, and human mediated-introgression interplay to shape MHC (functional) diversity in Mediterranean brown trout
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Data from: Balancing act: Persistence of the red fox in the dog-dominated landscapes of the trans-Himalaya
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Data and code for: Plumage balances camouflage and thermoregulation in Horned Larks (Eremophila alpestris)
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Data from: Temporal scale of habitat selection for large carnivores: Balancing energetics, risk and finding prey
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Riparian Evapotranspiration (ET) Study (SEON) from the Middle Rio Grande River Bosque, New Mexico (1999-2011): Energy Balance Data
This study originated with the objective of parameterizing riparian evapotranspiration (ET) in the water budget of the Middle Rio Grande. We hypothesized that flooding and invasions of non-native species would strongly impact ecosystem water use. Our objectives were to measure and compare water use of native (Rio Grande cottonwood, Populus deltoides ssp. wizleni) and non-native (saltcedar, Tamarix chinensis & Russian olive, Eleagnus angustifolia) vegetation and to evaluate how water use is affected by climatic variability resulting in high river flows and flooding as well as drought conditions and deep water tables. Eddy covariance flux towers to measure ET and shallow wells to monitor water tables were instrumented in 1999. Active sites in their second decade of monitoring include a xeroriparian, non-flooding salt cedar woodland within Sevilleta National Wildlife Refuge (NWR) and a dense, monotypic salt cedar stand at Bosque del Apache NWR, which is subject to flood pulses associated with high river flows. These data are energy balance data collected as part of this study.
Data from: Perturbation-evoked cortical responses associated with balance ability
<p><b>Background: </b>Reactive balance recovery evokes a negative peak of cortical electroencephalography (EEG) activity (N1) that is simultaneous to brainstem-mediated automatic balance-correcting muscle activity. This study follows up on an observation from a previous study, in which N1 responses were larger in individuals who seemed to have greater difficulty responding to support-surface perturbations. <b>Research Question: </b>We hypothesized that people engage more cortical activity when balance recovery is more challenging.<b> </b>We predicted that people with lower balance ability would exhibit larger cortical N1 responses during balance perturbations. <b>Methods: </b>In 20 healthy young adults (11 female, ages 19-38) we measured the amplitude of the cortical N1 response evoked by 48 backward translational support-surface perturbations of unpredictable timing and amplitude. Perturbations included a Small (8 cm) perturbation that was identical across participants, as well as Medium (13-15 cm) and Large (18-22 cm) perturbations scaled to participant height to control for height-related differences in perturbation difficulty. To assess individual differences in balance ability, we measured the distance traversed on a narrow (0.5-inch wide) 12-foot beam across 6 trials. We tested whether the cortical N1 response amplitude was correlated to balance ability across participants. <b>Results: </b>Cortical N1 amplitudes in response to standing balance perturbations (54±18 μV) were inversely correlated to the distance traveled in the difficult beam-walking task (R<sup>2</sup>=0.20, p=0.029). Further, there was a significant interaction between performance on the beam-walking task and the effect of perturbation magnitude on the cortical N1 response amplitude, whereby individuals who performed worse on the beam-walking task had greater increases in N1 amplitudes with increases in perturbation magnitude. <b>Significance:</b> Cortical N1 response amplitudes may reflect greater cortical involvement in balance recovery when challenged. This increased cortical involvement may reflect cognitive processes such as greater perceived threat or attention to balance, which have the potential to influence subsequent motor control.</p> <p> </p> <p>Note: This data set has also been appended to include additional data from the same data collection in the same participant cohort associated with the manuscript "<b>Cortical beta oscillatory activity evoked during reactive balance recovery scales with perturbation difficulty and individual balance ability</b>" submitted to NeuroImage</p>
Dynamic Load Balancing for Predictions of Storm Surge and Coastal Flooding-Model setup and source code
<p>Source code and model setup/inputs for the paper titled "Dynamic Load Balancing for Predictions of Storm Surge and Coastal Flooding" article. Simulations were conducted using a modified version of ADCIRC+DLB (ADCIRC + Dynamic Load Balancing) on unstructured triangular meshes.</p> <p>Contains:</p> <ol> <li>Model input files. <ol> <li>ADCIRC model input files for the ideal channel setup and Hurricane Irene simulation (*.13, *.14, *.15)</li> </ol> </li> <li>Zipped archive of the ADCIRC code (adcirc-cg-DLB.zip) used to produce the simulations for the paper.</li> <li>Step-by-step compilation and usage instructions for ADCIRC+DLB. <ol> <li>Installation.html </li> <li>Usage.html</li> </ol> </li> </ol>
Better together? how intergroup associations affect energy balance and feeding behavior in wild bonobos
<p>When the benefits of interacting with out-group members exceed the associated costs, social groups may be expected to be tolerant towards each other. However, in many species exhibiting intergroup tolerance, the nature of benefits gained from intergroup encounters remains unclear. We investigated the potential costs and benefits associated with intergroup associations in bonobos, a species with varying degrees of intergroup tolerance, by testing whether these associations conferred energetic benefits to participants under different socioecological contexts, and whether the consequences of these associations substantially differed from within-group competition. We used measures of socioecological factors (i.e. fruit abundance and group size), feeding and ranging behaviors, and a physiological marker of energy balance (i.e. urinary c-peptides of insulin) collected over a 19-month period from two neighboring wild communities in the Kokolopori Bonobo Reserve, DRC. We found that intergroup associations did not affect individuals' energy balance, but they did alter individuals' ranging and feeding behavior. Specifically, bonobos travelled longer distances, visited larger fruit patches, and increased the time spent feeding on fruits on days they associated with the neighboring group. These adaptations in feeding behavior may be strategies to offset the energetic costs of increased travel distances. In the absence of obvious energetic benefits and with clear strategies employed to offset energetic costs, it is likely that intergroup associations in bonobos provide benefits unrelated to energy acquisition, such as social benefits. Our study sheds light on the potential incentives promoting social networks to extend beyond and across groups in a tolerant species.</p>
Ionic Homeostasis, Acid-Base Balance and the Risk of Citrate Accumulation in Patients After Cardiovascular Surgery Treated with Continuous Veno-venous Haemofiltration with Post-Dilution Regional Citrate Anticoagulation.
<p>Data sets analyzed and described in the paper: "Ionic Homeostasis, Acid-Base Balance and the Risk of Citrate Accumulation in Patients After Cardiovascular Surgery Treated with Continuous Veno-venous Haemofiltration with Post-Dilution Regional Citrate Anticoagulation."</p>
Data from: Daily protein prioritization and longterm nutrient balancing in a dietary generalist, the blue monkey
<p>Animals must make dietary choices to achieve adequate nutrient intake, however it is challenging to study in the field such nutritional strategies in wild populations. We explored the nutritional strategy of a generalist social primate, the blue monkey (<i>Cercopithecus mitis)</i>. We hypothesized that females balance the intake of nutrients, specifically non-protein energy and available protein (hereafter, protein), both on a daily and long-term basis. When balancing was not possible, we expected subjects to prioritize constant protein intake, allowing non-protein energy to vary more. To understand the ecology of nutrient balancing, we examined how <span>habitat use,</span> food availability, diet composition, social dominance rank and reproductive demand influenced nutrient intake. Over 9 months, we conducted 371 all-day focal follows on 24 adult females in Kakamega Forest, Kenya. Subjects exhibited short- and long-term nutritional strategies. On a daily basis, they balanced non-protein energy to protein intake but when balancing was impossible, monkeys prioritized protein intake. Over the long-term, they balanced non-protein energy:protein intake in a 3.8:1 ratio. The ratio related positively to <span>fruit in the diet and negatively to time in near-natural forest, but we found no evidence that it related to</span> <span>food availability, reproductive demand, or dominance rank. Lower-ranked females had broader daily diets, however, which may reflect </span>behavioral feeding strategies to cope with social constraints. Overall, females prioritized daily protein, allowing less variation in protein intake than other aspects such as non-protein energy:protein ratio and non-protein energy intake. The emerging pattern of nutrient balancing in primates suggests that diverse dietary strategies evolved to allow adherence to a balance of non-protein energy:protein despite various social and environmental constraints. The data from this study also add to a small but growing number of studies that document nutritional strategies in wild animal populations.</p>
Balance Energético de España en Octubre de 2020
<p>Este dataset están registrados los datos de generación, consumo y demanda del sistema energético por día de España durante el mes con sus unidades correspondientes.</p>
Data from: The effects of ground-irregularity-cancelling prosthesis control on balance over uneven surfaces
<p>Over half of individuals with a lower-limb amputation are unable to walk on uneven terrain. Using a prosthesis emulator system, we developed an irregularity-cancelling controller intended to reduce the effect of disturbances resulting from uneven surfaces. This controller functions by changing the neutral angles of two forefoot digits in response to local terrain heights. To isolate the effects of the controller, we also programmed a spring-like controller that maintained fixed neutral angles. Five participants with transtibial amputation walked on a treadmill with an uneven walking surface. Compared to the spring-like controller, the irregularity-cancelling controller reduced ankle torque variability by 41% in the sagittal plane and 64% in the frontal plane. However, user outcomes associated with balance were mostly unaffected; only trunk movement variability was reduced, whereas metabolic rate, mediolateral center of mass motion, and variabilities in step width, step length, and step time were unchanged. We conclude that reducing ankle torque variability of the affected limb is not sufficient for reducing the overall effect of disturbances due to uneven terrain. It is possible that other factors, such as changes in step height or disturbances to the intact limb, play a larger role in difficulty balancing while walking over uneven surfaces.</p>
Data from: Identifying 'useful' fitness models: balancing the benefits of added complexity with realistic data requirements in models of individual plant fitness
<p>Direct species interactions are commonly included in individual fitness models used for coexistence and local-diversity modeling. Though widely considered important for such models, direct interactions alone are often insufficient for accurately predicting fitness, coexistence or diversity outcomes. Incorporating higher-order interactions (HOIs) can lead to more accurate individual fitness models, but also adds many model terms, which can quickly result in model over-fitting. We explore approaches for balancing the trade-off between tractability and model accuracy that occurs when HOIs are added to individual fitness models. To do this, we compare models parameterized with data from annual plant communities in Australia and Spain, varying in the extent of information included about the focal and neighbor species. The best performing models for both datasets were those that grouped neighbors based on origin status and life form, a grouping approach that reduced the number of model parameters substantially while retaining important ecological information about direct interactions and HOIs. Results suggest that specific focal- or neighbor-species identity is not necessary for building well-performing fitness models that include HOIs. In fact, grouping neighbors by even basic functional information seems sufficient to maximize model accuracy, an important outcome for the practical use of HOI-inclusive fitness models.</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.