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1,219 results for “Sand”
Replication data for: Demographic declines and responses of breeding bird populations to human footprint in the Athabasca Oil Sands Region, Alberta, Canada
<p class="MsoNormal">This data package includes data files and an R script to reproduce results reported in the paper "Demographic declines and responses of breeding bird populations to human footprint in the Athabasca Oil Sands Region, Alberta, Canada". Analyses include hierarchical multispecies models applied to data from 31 bird species at 38 Monitoring Avian Productivity and Survivorship (MAPS) stations to assess 10-year (2011–2020) demographic trends and responses to energy sector disturbance (human footprint proportion) in the Athabasca oil sands region of Alberta, Canada. Adult captures, productivity, and residency probability all declined over the study period, and adult apparent survival probability also tended to decline. Trends in adult captures, productivity, and survival were all more negative at stations with larger increases in disturbance over the study period. Species associated with early seral stages were more commonly captured at more disturbed stations, while species typical of mature forests were more commonly captured at less disturbed stations. Productivity was positively correlated with disturbance within 5 km of stations after controlling for disturbance within 1 km of stations. Adult apparent survival showed relatively little response to disturbance; stresses experienced beyond the breeding grounds likely play a larger role in influencing survival. Residency probability was negatively related to disturbance within 1-km scale of stations and could reflect processes affecting the ability of birds to establish or maintain territories in disturbed landscapes.</p>
Sand Drawing, Verses Of Quran
Sand Drawing, Verses Of Quran Hand painting made from Sahara dune sand. The sand can contain more than one color which let artist develop some very interresting artwork Source: Objaverse 1.0 / Sketchfab
New York State Fair Sand Sculpture 2022
Scanned using Polycam on a Pixel 6 Pro, cleanup in blender, no remesh. Source: Objaverse 1.0 / Sketchfab
Haile Sand Fort - UK
A videogrammetry 3d scan of Haile Sand Fort made in Agisoft software from 119 frames from this video: https://www.youtube.com/watch?v=OSWSbicdOB0 Source: Objaverse 1.0 / Sketchfab
Sand And Stone
Stone Arch modelled in Blender 2.8 Great practice at hand painting a low poly model to give it a nice stylized look. Source: Objaverse 1.0 / Sketchfab
Sand Castle (Valencia)
Dense reconstruction from 81 photos. Made with [3Dnovator](http://3dnovator.com). Note: due to the poor quality of the photos, the pose registration is not precise enough which translated to a poor quality of the final mesh (shadowed shapes visible especially at the edge of the scene). Source: Objaverse 1.0 / Sketchfab
Fig. 2 in Morphological and DNA-based description of TRiChophoRomyiA peixotoi n. sp. (Diptera: Psychodidae), a new sand fly species from the Brazilian Amazon
Fig. 2 Wing of Trichophoromyia peixotoi n. sp. holotype (scale bar: 500 μm)
Surface dust coverages on rock targets in Gale crater: Influence of seasonal wind variability, elevation and proximity to aeolian sand fields.
<p>The following dataset accompanies the paper submission to AGU - JGR: Planets for the paper titled: "</p> <p><span>Surface dust coverages on rock targets in Gale crater: Influence of seasonal wind variability, elevation and proximity to aeolian sand fields."</span></p>
Fig. 6 in Sand fly fauna of South-Eastern Romania, with the description of PhlebotomUS (TranSphlebotomUS) Simonahalepae n. sp. (Diptera: Psychodidae)
Fig. 6 The currently known distribution areas of species of subgenus Transphlebotomus [19–30]
Cyclic Direct Simple Shear (CDSS) - Sand S30T - Constant Volume condition - Dr 0.85 - 1
<p>Each CDSS test includes a PDF file (containing the grain size distribution) and a text file.</p> <p>The CDSS tests were performed under specified conditions: </p> <p>Normal stress: 100 - 500 kPa</p> <p>Number of cycles: 1000</p> <p>Preparation: Tamping</p> <p>Sample dimensions: h=20 mm, d=71,4mm</p> <p>Relative density: 0.85</p> <p>Test conditions: constant volume</p> <p>CSR/MSR: different</p>
Figure 5 in Leishmaniasis and phlebotomine sand flies in Oman Sultanate
Figure 5. Ulcero-scabby lesion of case LCO 2.
Figure 4 in Leishmaniasis and phlebotomine sand flies in Oman Sultanate
Figure 4. Pharynx of Ph. saevus (A), Ph. sergenti (B) and cibarium of Se. baghdadis (C).
Supplementary Dataset for "Grain Size Measurements of the Eolian Stimson Formation, Gale Crater, Mars and Implications for Sand Provenance and Paleoatmospheric Conditions"
<p>Grain size measurements and results in support of "Grain Size Measurements of the Eolian Stimson Formation, Gale Crater, Mars and Implications for Sand Provenance and Paleoatmospheric Conditions".</p> <p>The subfolder "MAHLI images" consists of images taken by the Mars Science Laboratory <em>Curiosity</em> Mars Hand Lens Imager; these images are accesible via the MSL Analyst's Notebook at an.rsl.wustl.edu.</p> <p>The subfolder "ImageJ ROIs" contains .zip files that can be opened with the ImageJ software, available at imagej.nih.gov/ij.</p> <p>The subfolder "GRADISTAT results" contains PDFs with grain size statistics that were created from the data in "Grain size measurements" using the GRADISTAT software, available at https://doi.org/10.1002/esp.261. </p>
Accompanying data for the paper "Making Sense of Wildlife Habitat Use on Active Oil Sands Mines: Quasi-experiments, Occupancy Models, Trends Assessments, and Upland Habitat Reclamation"
<p>This data set contains both the raw species detection records and the derived occupancy model data used to assess usage patterns for the nine species of wildlife. Data have been anonymized by using non-identifying company and lease names. These attributes are not required to reproduce the results in this paper and was done per contractual requirements between LGL Limited and its clients.</p> <p>Data is currently being reviewed by the client and will be shared publicly once final approval has been received.</p>
Freshwater ecosystem transitions due to artisanal sand mining in Rwanda, Africa
<p>Artisanal small-scale mining (ASM) of sand, gravel and crushed stones plays an economically important role through its value as a ‘development mineral’ for a growing population in sub-saharan Africa. The extracted material is used in developing and expanding urban areas and infrastructure and provides income for the population involved in the sector. However, the extraction of aggregates has shown to have large and often complex ecological and socio-economical consequences with potential significant health effects on the miners and the environment in which the mining takes place. Furthermore, the extent in which these negative effects do arise from ASM in sub-Saharan still remains anecdotal and are largely unknown. Here we show that ASM in a river channel in central Rwanda causes a systemic shift in freshwater biodiversity by changing species assemblages from being riverine towards communities representing standing waters. Based on 101 point samples, we find that ponds created due to mining activities act as habitats for freshwater insects associated with wetland habitats. Furthermore, these mining ponds did also act as breeding sites for mosquitoes and thereby potentially increase the presence of vector borne diseases such as malaria. These findings show how ASM can generate a landscape level shift in freshwater biodiversity and introduces the apparent paradox that while aggregates are critical building blocks in mitigating malaria transmissions and prevalence through improved housing, the mining practices unwillingly can create new breeding ground for malaria mosquitos, thus increasing the risk of malaria spreading to nearby communities.</p>
CT image volume, gray values and pore structure parameters of hydrate formation in sands
<p>The dataset consists of CT raw volume and gray values of hydrate formation (hydrate saturation 0, 14%, 35% and 51%), methane hydrate growth pattern, and the pore structure parameters. The dataset associated with the manuscript entitled " Investigation on the multi-parameter of hydrate-bearing sands using nano-focus X-ray computed tomography" .</p> <p> </p>
Dataset sand addition stream restoration
<p>This dataset includes raw data sampled at the Leuvenumse stream, the Netherlands from 2014-2016, related to the publication entitled "Lowland stream restoration by sand addition: impact, recovery and beneficial effects on benthic invertebrates".</p>
From fine sand to boulders: examining the relationship between beach-face slope and sediment size. Dataset and references.
<p>A collection of 2144 pairs of beach-face slope and median sediment size measurements gathered from 78 publications that covers the whole range of coastal sediments.<br> </p> <p>Size-Slope-Data-Points.ods :<br> Size/slope values and their references. The 'Type' column separates beaches from boulder ridges.</p> <p>Size-Slope-References.ods :<br> Details of each reference used.</p> <p> </p>
Tropical sand cays as natural paleo-cyclone archives
<p>Sand cays are valuable paleo-archives that can significantly increase our understanding of Holocene tropical cyclone variability. Here we conducted detailed sedimentological and chronological analyses from a 195-cm-depth pit excavated on Guangjin Island (northern South China Sea), a cay influenced by frequent tropical cyclones. Radiometric dating of multiple deposits revealed that foraminifera, soft coral spicules, and gastropod shells yielded variable age distributions, while U/Th ages of pristine <em>Acropora</em>branches provided a clear record of deposition and cay formation. Based on this robust chronostratigraphy, the proportions of > 2mm grain-size fraction within the deposits corresponded with the frequency of paleo-typhoons recorded by historical records in recent centuries. U/Th ages of <em>Acropora </em>branches from the deposits matched with three known historical typhoon events. Our results highlight the potential of cyclone-deposited sand cays as new archives for recording paleo-cyclones.</p>
Figure 1 in Using body condition index can be an unreliable indicator of fitness: a case of sand lizard Lacerta agilis Linnaeus, 1758 (Sauria: Lacertidae)
Figure 1. Correlation between lizards' body length and body mass in the 3 age groups.
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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)
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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.