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17,039 results for “Natural”
Figures 7–8 in Natural history of Cassida sphaerula Boheman, 1854 (Coleoptera: Chrysomelidae: Cassidinae: Cassidini) on Arctotheca prostrata (Salisb.) Britten (Asteraceae: Arctotidinae) in South Africa, with a checklist of South African Cassidinae (leaf-mining and tortoise beetles)
Figures 7–8. Coastal area with extensive growth of Arctotheca prostrata, Goukamma Reserve, South Africa. Plants intact but soil disturbed by the activity of Cape dune mole-rat (Bathyergidae: Bathyerginae: Bathyergus suillus (Schreber, 1782)).
Figures 1–6 in Natural history of Cassida sphaerula Boheman, 1854 (Coleoptera: Chrysomelidae: Cassidinae: Cassidini) on Arctotheca prostrata (Salisb.) Britten (Asteraceae: Arctotidinae) in South Africa, with a checklist of South African Cassidinae (leaf-mining and tortoise beetles)
Figures 1–6. Arctotheca prostrata (Salisb.) Britten (Asteraceae) in its native habitat, South Africa (photos: S. Adam, September 2021). 1–4) Various sites on the farm Laaiplaats, Mossel Bay. 5) Leaves appear spotted due to beetle feeding damage, farm Laaiplaats. 6) Arctotheca calendula in Australia, showing how successfully these plants overtake bare soil (photo: Stephen D. Hopper).
Figures 21–25 in Natural history of Cassida sphaerula Boheman, 1854 (Coleoptera: Chrysomelidae: Cassidinae: Cassidini) on Arctotheca prostrata (Salisb.) Britten (Asteraceae: Arctotidinae) in South Africa, with a checklist of South African Cassidinae (leaf-mining and tortoise beetles)
Figures 21–25. Larva of Cassida sphaerula (photos: S. Adam, September 2021). 21) Young instar with lateral projections called scoli; shield removed to expose paired caudal processes. 22) Older instar (frontal view) with exuvio-fecal shield attached to caudal processes; feces appear dry. 23) Older instar with moist exuvio-fecal shield. 24) Older instar, dorsal view, with feces removed; legs and caudal processes of exuviae of previous instar apparent. 25) Hind end of older larva with dry exuvio-fecal shield. Paired caudal processes of previous instar are exposed, projecting dorsad. The caudal processes of this larva is hidden, stacked within the observable caudal processes.
Figures 16–18 in Natural history of Cassida sphaerula Boheman, 1854 (Coleoptera: Chrysomelidae: Cassidinae: Cassidini) on Arctotheca prostrata (Salisb.) Britten (Asteraceae: Arctotidinae) in South Africa, with a checklist of South African Cassidinae (leaf-mining and tortoise beetles)
Figures 16–18. Ootheca and young larvae of Cassida sphaerula (photos: S. Adam, September 2021). 16) Venter of host leaf with two oothecae (arrows) and two instar III with their black exuvio-fecal shields. 17) Ootheca (~2 mm long). 18) Ootheca with oval-shaped egg. 19) Two young instar 1 (~2 mm long) with tiny black shield composed entirely of its own feces. 20) Mature instar 1 with larger shield (reared from Fig. 19).
Numerical methodology for design and evaluation of natural circulation systems for MSR applications - Dataset
<p>Dataset associated to the 2022 ANS Annual meeting conference paper "Numerical methodology for design and evaluation of natural circulation systems for MSR applications".</p>
Dataset for Nature Geoscience: Acceleration of a large deep-seated tropical landslide due to urbanisation feedbacks
<p>This archive file contains datafiles used in the manuscript: 'Acceleration of a large deep-seated tropical landslide due to urbanisation feedbacks' [https://doi.org/10.1038/s41561-022-01073-3]. It contains historical aerial orthomosaics, UAS DSM and orthomosaics, shapefiles, deformation maps, etc. for Funu landslide.</p>
Spectral dataset of natural light fields measured in the Netherlands
<p>This is a spectral dataset of natural light collected in the Netherlands. The data supplement contains the rural and city cubic irradiance spectra with associated wavelength spacing.</p> <p>We measured natural light fields for sunny weather in the shade and light for 24 rural and urban scenes across multiple days (in total 48 cubic measurements).</p> <p>We also measured natural light fields from dawn till dusk on a sunny day (in total 165 cubic measurements) and a cloudy day (in total 124 cubic measurements).</p> <p>This spectral light-field dataset provides comprehensive illumination statistics useful for understanding biological vision. The data reveal how perceptually meaningful aspects of the light, such as the direction, colour and diffuseness of the main light components, vary over space and time in ecologically valid conditions.</p>
Data for: Changes in evapotranspiration, transpiration and evaporation across natural and managed landscapes in the Amazon, Cerrado and Pantanal biomes
<p>This dataset contains measurements of evapotranspiration and other meteorological variables (net radiation, air temperature, vapor pressure deficit, etc) from nine eddy covariance towers located in different ecosystems in the Amazon (natural Amazon forest, cropland and pastureland), Cerrado (natural savannah, irrigated and rainfed croplands) and Pantanal (natural forest, pastureland) biomes. It also contains estimates of transpiration that were calculated using two different approaches, the transpiration estimation algorithm (TEA) and the underlying water use efficiency method (uWUE).</p>
Urban nature-based solutions to climate change adaptation database
<p>This dataset is the result of a systematic mapping of the application of nature-based solutions (NbS) to climate change adaptation in urban areas across the world. We screened 823 potential urban NbS to climate adaptation, which resulted in the inclusion of 216 interventions worldwide from 130 cities in 55 countries within our dataset. We analysed each of the NbS according to key characteristics in terms of how these interventions are helping cities confront the grave climate change, biodiversity, and related social challenges they are facing. We further analyse the capacity for each NbS to affect change in the city it is implemented within, which ranges from incremental (shallow) change to reformistic (middle ground) and finally transformative (deep) change. The full range of climate, biodiversity, and social challenges, as well as further discussion on the meaning of these different levels of change, is described in the attached file in the coding template tab. </p> <p>The results and analysis of this database (v 1.0.0) appear in the following article:</p> <p>Goodwin, S., M. Olazabal, A. Castro, U. Pascual. "Global mapping of urban nature-based solutions for climate change adaptation". <em>Nature Sustainability. doi: <a href="http://doi.org/10.1038/s41893-022-01036-x">10.1038/s41893-022-01036-x </a></em></p> <p><strong>A read-only version of this article can be found online for free <a href="https://rdcu.be/c4tjk">here</a>.</strong></p> <p>For any use of this dataset, please cite this dataset along with the associated publication in Nature Sustainability. Please report any errors or omissions to Sean Goodwin.</p>
MTL-QA : A dataset and multi-task learning approach for knowledge graph and natural language question answering
<p>The dataset used for this project is created by enhancing the publicly available MetaQA (Movie Text Audio QA), which is primarily a KGQA dataset pertaining to movies, an extension of WikiMovies. This involves questions requiring 1, 2, and 3 hops which can be answered by using a MetaQA Knowledge Graph. The questions are available in text and audio format. The text has vanilla (original) and its paraphrased version, and is called ntm. </p> <p>In order to develop a dataset to support NLQA, a series of dataset augmentation steps has been performed.</p> <p>The dataset consists of natural language questions and a tagged topic entity as ground truth. This topic entity is used to retrieve textual information related to the question from Wikipedia. The introduction section of the entity's page is used as the context that is required for NLQA. Hence, this dataset has information related to both KGQA and NLQA. Certain preliminary checks and validations are done to only retain those data samples whose context can be used to answer a given question.</p>
IODP Expedition 350 Natural gamma radiation
<p>Natural gamma radiation (NGR) data in the ~0.1 to 3.0 MeV range were measured using eight custom-designed sodium iodide (thallium) [NaI(Tl)] detectors arranged along the core measurement axis at 20 cm intervals. The NGR system uses layers of passive shielding (lead) and active shielding (plastic scintillators and coincidence electronics) to reduce the cosmic-ray signal for low-count analysis of sediment core sections and to obtain the maximum signal-to-noise ratio. Data are reported on a total counts per second basis and the raw spectral files are available as compressed files for later analysis.</p>
IODP Expedition 376 Natural gamma radiation
<p>Natural gamma radiation (NGR) data in the ~0.1 to 3.0 MeV range were measured using eight custom-designed sodium iodide (thallium) [NaI(Tl)] detectors arranged along the core measurement axis at 20 cm intervals. The NGR system uses layers of passive shielding (lead) and active shielding (plastic scintillators and coincidence electronics) to reduce the cosmic-ray signal for low-count analysis of sediment core sections and to obtain the maximum signal-to-noise ratio. Data are reported on a total counts per second basis and the raw spectral files are available as compressed files for later analysis.</p>
The contribution of Neanderthal introgression and natural selection to neurodegenerative diseases
<p>Files used to create binary annotations for LDSC in the following repository: https://github.com/RHReynolds/als-neanderthal-analysis.</p> <p>See the following link for details: https://github.com/RHReynolds/als-neanderthal-analysis/tree/main/raw_data/01_annotations</p>
Text-fig. 43. Synchrotron radiation X-ray tomographic microscopy SRXTM images of "Tricarpellate flower sp. 2"; Catefica locality, Portugal. a) Lateral view of floral structure (volume rendering) showing the apical projection of the carpels and the semiinferior organization; b) Apical view of floral structure (volume rendering) showing the triangular shape of the hypanthial rim, the tricarpellate ovary with a single apical style; note that one locule is fully developed while the other two are collapsed; note also slits of unknown nature in the corners of the triangular hypanthial rim (arrows); c) Transverse section (orthoslice xy0712) close to the floral apex showing the locule of the one fully developed carpel with ovules borne along ventral placentae; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; d) Longitudinal section (orthoslice xz0858) through the locule of the one fully developed carpel showing the semi-inferior organization and ovules arranged along the full length of the carpel; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; e) Tangential longitudinal section (orthoslice yz1019) through the one fully developed locule, showing the densely packed ovules and the amorphous substance (asterisk) with which they are associated. Specimen, Catefica 50-S174901 (a–e). Scale bars = 300 Μm (a–e). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms
Text-fig. 43. Synchrotron radiation X-ray tomographic microscopy SRXTM images of "Tricarpellate flower sp. 2"; Catefica locality, Portugal. a) Lateral view of floral structure (volume rendering) showing the apical projection of the carpels and the semiinferior organization; b) Apical view of floral structure (volume rendering) showing the triangular shape of the hypanthial rim, the tricarpellate ovary with a single apical style; note that one locule is fully developed while the other two are collapsed; note also slits of unknown nature in the corners of the triangular hypanthial rim (arrows); c) Transverse section (orthoslice xy0712) close to the floral apex showing the locule of the one fully developed carpel with ovules borne along ventral placentae; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; d) Longitudinal section (orthoslice xz0858) through the locule of the one fully developed carpel showing the semi-inferior organization and ovules arranged along the full length of the carpel; note amorphous substance (asterisk) associated with the developing ovules that fills part of the locule space; e) Tangential longitudinal section (orthoslice yz1019) through the one fully developed locule, showing the densely packed ovules and the amorphous substance (asterisk) with which they are associated. Specimen, Catefica 50-S174901 (a–e). Scale bars = 300 Μm (a–e).
Magnesium Hydroxide Nanoparticles Production from Natural Bitterns
<p>Magnesium hydroxide nanoparticles are widely employed in numerous industrial applications. Several preparation methods have been proposed using mainly synthetic Mg<sup>2+</sup> containing solutions. In the present work, the possibility of producing Mg(OH)<sub>2</sub> nanoparticles from real bitterns, the by-product of sea salt production, is investigated. Bitterns are highly concentrated Mg<sup>2+</sup> containing solutions whose exploitation can turn a waste into valuable products embracing the circular economy idea. Two bitterns collected from Galia and Margi saltworks of the district of Trapani (Italy) were studied. Galia and Margi bitterns had a 1 M and 2.5 M Mg<sup>2+</sup> concentration, respectively. A 2 mm diameter circular-cross sectional T-mixer was adopted to ensure fast reactant mixing. NaOH solutions were employed as precipitant agents. Mg(OH)<sub>2</sub> nanoparticles characterized by cationic and mass purity higher than 99 % and 90 %, respectively, were successfully produced when treating Galia bitterns, while the excessive Margi Mg<sup>2+</sup> concentration yielded stronger micrometer Mg(OH)<sub>2</sub> agglomerates.</p>
The LOTUS Initiative for Open Natural Products Research: wikidata query results
<p>Wikidata query results returned by the downloadLotus module of the <a href="https://github.com/lotusnprod/lotus-wikidata-interact">https://github.com/lotusnprod/lotus-wikidata-interact</a> program.</p> <p>See details of the module here <a href="https://github.com/lotusnprod/lotus-wikidata-interact/blob/main/downloadLotus/README.md">https://github.com/lotusnprod/lotus-wikidata-interact/blob/main/downloadLotus/README.md</a></p> <p>This dataset is constituted of 4 tables.</p> <ol> <li>compounds.tsv - chemical structures metadata (wikidataId, canonicalSmiles, isomericSmiles, inchi, inchiKey)</li> <li>references.tsv - bibliographical references metadata (wikidataId, pipe separated DOIs, titles)</li> <li>taxa.tsv - biological organisms metadata (wikidataId, pipe separated names, taxa rank)</li> <li>compound_reference_taxon.tsv - the documented structure-organism pairs</li> </ol> <p>This dataset includes not only the outputs of the LOTUS processing pipeline (available here <a href="https://doi.org/10.5281/zenodo.5665295">https://doi.org/10.5281/zenodo.5665295</a> ) but also any of wikidata chemical compounds having the found in taxon property (<a href="https://www.wikidata.org/wiki/Property:P703">https://www.wikidata.org/wiki/Property:P703</a>) and their associated organisms and documenting references.</p> <p> </p> <p><br> </p>
The LOTUS Initiative for Open Natural Products Research: frozen dataset
<p>Dataset used in the frame of the LOTUS Initiative: <a href="https://doi.org/10.7554/eLife.70780">https://doi.org/10.7554/eLife.70780</a></p>
FIG. 2 in Natural history and conservation of the wolf spider Vesubia jugorum (Simon, 1881) (Araneae, Lycosidae), assessed as Endangered in the IUCN Red List
FIG. 2. –– Long-term monitoring programme of Vesubia jugorum (Simon, 1881): A, a typical high-altitude rocky area colonized by Vesubia jugorum; B, a female with its cocoon; C, measurement of the cocoon diameter with a digital calliper; D, removal of leg IV from a female; E, measurement of leg IV through Leica M80 stereoscopic microscope; F, a female with cocoon found in its retreat.
FIG. 4 in Natural history and conservation of the wolf spider Vesubia jugorum (Simon, 1881) (Araneae, Lycosidae), assessed as Endangered in the IUCN Red List
FIG. 4. –– Predicted relationship (blue line) and 95% confidence intervals (gray stripe) between length of femur IV and habitat suitability of each monitoring site derived from the Ecological Niche Model presented in Mammola et al. (2019) (see Material and Methods for further details).
FIG. 3 in Natural history and conservation of the wolf spider Vesubia jugorum (Simon, 1881) (Araneae, Lycosidae), assessed as Endangered in the IUCN Red List
FIG. 3. –– Life cycle of Vesubia jugorum (Simon, 1881) derived from field observations conducted across the species distribution range during the 2016-2019 sampling seasons. Daily fluctuations in temperature (red line) and humidity (blue line) derived from data-logger positioned across 2018 and 2019 at the ground level under stones, in the nearby of Rocca dell'Abisso (Valdieri, 2589 m a.s.l.). Daily fluctuations in air temperature (orange line) derived from the meteorological station of Rocca dell'Abisso (2753 m a.s.l.). Growing season is indicated by light grey (females), black (males) and dotted dark grey (juveniles) bars. Dash line refers to the overwintering. See text for further details.
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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.