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13,017 results for “Positionning”
Cranial anatomy, intraspecific variation, and positional variation within Calyptosuchus wellesi (Pseudosuchia: Aetosauria) based on new specimens from the Upper Triassic Chinle Formation (Adamanian, early middle-Norian) of Petrified Forest National Park, Arizona, USA
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A giant’s appetite: How body size drives the diet and trophic position of the Japanese giant salamander
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The dataset of five chloroplast regions used in: A contribution to Gymnosphaera (Cyatheaceae) in mainland Asia: Two new species, reinstatement of Cyathea bonii, and their phylogenetic positions
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Elevated rates of positive selection drive the evolution of pestiferousness in the Colorado potato beetle ( Leptinotarsa decemlineata, Say)
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Trophic discrimination of amino acid-specific nitrogen stable isotopes in raptor nestlings: implications for estimating trophic position
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Data from: Livestock overgrazing disrupts the positive associations between soil biodiversity and nitrogen availability
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Older populations of the invader Solidago canadensis exhibit stronger positive plant-soil feedbacks and competitive ability in China
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Data from: Plastome-based subgenus-level phylogenetic backbone of hawthorns: insights into the maternal position and taxonomic synopsis of Crataegus shandongensis (Rosaceae, Maleae)
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Uncovering patterns of freshwater positive interactions using meta‐analysis: identifying the roles of common participants, invasive species and environmental context
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Data from: Host response to conspecific brood parasitism in colonial Red-breasted Mergansers (Mergus serrator): Positioning of parasitic eggs within the clutch
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Positive interactions between corals and damselfish increase coral resistance to temperature stress
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Data from: Idiosyncratic perception: a link between acuity, perceived position and apparent size
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Data from: They are likely to be there: using a family-centered index-testing approach to identify HIV-positive children in Kenya
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Topographic position amplifies consequences of short-interval stand- replacing fires on postfire tree establishment in subalpine conifer forests
Stand-replacing fires burned at 100 to 300-year intervals for millennia in subalpine conifer forests of western North America, but forests are burning more frequently as climate warms. Postfire tree regeneration is reduced when young forests reburn before recovering from previous fires or when drought occurs during postfire years. However, whether seedling vulnerabilities to harsh microclimate conditions may be amplified in short-interval (< 30 years) fires is unclear. We conducted a field experiment to answer three questions: (1) How do germi- nation, survival, and establishment of lodgepole pine (Pinus contorta var. latifolia) and Douglas-fir (Pseudotsuga menziesii var. glauca) vary by aspect following high-severity, short-interval fires? (2) What environmental factors control germination, survival, and establishment of both species? (3) Based on our experimental evidence, what proportion of available seed would be expected to establish across landscapes that burned in these short-interval fires? One year postfire, we planted seeds of both species in north-facing, south-facing and flat plots at four sites across the Greater Yellowstone Ecosystem (Wyoming, USA). Soil microclimate was monitored continuously. Seed germination and seedling survival were measured every two weeks during the following growing season and at the beginning and end of the second growing season. Germination did not vary with aspect but increased with early-season soil moisture and temperature. Survival and establishment were low on south-facing aspects (< 1% of seeds established for both species) and declined with warmer soil temperatures and drier soils. For lodgepole pine, we predicted establishment rates of < 1% of available seed over 25% of the reburned landscape. Soil temperatures in short-interval fires were 2 ̊C warmer than similar areas of long-interval fire, with maximum temperatures frequently exceeding 40 °C. Topographic variation will mediate the consequences of short-interval fir
Relative Positions Within Stream Transects
As part of the Long Term Ecological Research (LTER) project in the McMurdo Dry Valleys of Antarctica, a systematic sampling program has been undertaken to monitor glacial meltwater stream attributes of the region. Optical topographic surveys were performed to produce a layout of the area studied. This file provides a list of distances and height differences for features along the transect line at each site ("T-points"). All heights are relative to the assumed zero value at the transect RM #1. Distances are horizontal.
Fig. 1-2 in Description du mâle de la Cigale-marteau, Cicadmalleus micheli Boulard & Puissant, 2013, et position systématique de l'espèce (Hemiptera, Cicadoidea, Cicadidae)
Fig. 1-2. – Cicadmalleus micheli Boulard & Puissant, ♂. – 1, Vue dorsale. – 2, Gros plan sur l'opercule gauche (Ha, hanche; Op, opercule; Ro, rostre).
Fig. 10 in Description du mâle de la Cigale-marteau, Cicadmalleus micheli Boulard & Puissant, 2013, et position systématique de l'espèce (Hemiptera, Cicadoidea, Cicadidae)
Fig. 10. – Cicadmalleus micheli Boulard & Puissant, ♂, carte d'identité acoustique, cymbalisation d'appel (échantillonnée à 44 100 Hz).
Wi-Fi RSSI fingerprint dataset from two malls with validation routes in a shop-level for indoor positioning
<p><strong>Th</strong>e dataset is composed of the RSSI fingerprinting calibration of two malls employing four different smartphones with the random walking survey method. Moreover, the dataset includes validation routes performed with ten smartphones from various brands and labeled with the code of the shops where they were registered. For evaluation purposes, together with the samples, information related to the shopping center like the Euclidean distance between shops is provided. The files are described as follows:</p> <ul> <li> <p>building.csv’: two rows with the id of mall 1 and mall 2.</p> </li> <li> <p>‘floor.csv’: there is a row for each of the floors of the two malls. Three floors for mall 1 and two floors for mall 2 </p> </li> <li> <p>‘zones.csv’: for each zone is indicated the id of the mall and the id floor. There are 69 zones from mall 1 and 124 for mall 2 </p> </li> <li> <p>‘training.csv’: in this file are registered the ids and the description of the five different calibrations performed (one per smartphone) in each of the malls. </p> </li> <li> <p>‘training_sample.csv’: each row of the file has the RSSI in dBm recorded during the off-line calibration phase together with the timestamp, channel, and MAC of the AP.</p> </li> <li> <p>‘route.csv’: the id’s and the description of each of the validation routes are recorded in this file. </p> </li> <li> <p>‘route_sample.csv’: with a similar structure than the training_sample.csv, the RSSI, timestamp, channel, and MAC acquired during the validation routes are stored in this file.</p> </li> <li> <p>‘euclidea_distance.csv”: to evaluate the error of the different algorithms, this file recorded the euclidean distance from the center of a shop to each other in meters.</p> </li> </ul> <p>The dataset is to be cited as follows:<br> J. A. López-Pastor, A.J. Ruiz-Ruiz, A.J. García-Sánchez, J.L. Gómez-Tornero. Wi-Fi RSSI fingerprint dataset from two malls with validation routes in a shop-level for indoor positioning. Zenodo repository. DOI: 10.5281/zenodo.3698238</p>
GPS dataset for 'Global View of Ionospheric Disturbance Impacts on Kinematic GPS Positioning Solutions during the 2015 St Patrick's Day Storm' by Zhe Yang, Y. Jade Morton, Irina Zakharenkova, Iurii Cherniak, Shuli Song, Wei Li
<p>This dataset contains observations of ionospheric plasma irregularities and GPS positioning errors for ~5500 stations reported in the paper 'Global View of Ionospheric Disturbance Impacts on Kinematic GPS Positioning Solutions during the 2015 St Patrick’s Day Storm' by Zhe Yang, Y. Jade Morton, Irina Zakharenkova, Iurii Cherniak, Shuli Song, Wei Li</p>
FIGURES 654–665 in Systematic position of Thraulodes Ulmer 1920 (Ephemeroptera: Leptophlebiidae) and descriptions of new and little-known species
FIGURES 654–665. Thraulodes? consortis. 654, larval protogonostyli and protopenis; 655, fore protopteron; 656, hind protopteron; 657, larva with ocher cuticular coloration and blackish hypodermal markings on head and abdomen; 658–660, fore, middle and hind legs of male subimago; 661, abdominal terga and sterna of male subimago; 662, anterior side of hind femur; 663, anterior side of fore tibia; 664, hind tibia with focus on outer-posterior row of stout setae; 665, the same with focus on outer-anterior and inner-anterior rows of stout setae.
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.