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689 results for “crystals”
Crystal size and texture data of sea ice from the Antarctic Marginal Ice Zone collected in Spring 2019
<p>This dataset details the crystal size and texture data from the sea ice cores collected during the SCALE Spring 2019 voyage to the Antarctic Marginal Ice Zone. Each sample collected has a series of accompanying photograph figures from which the crystal size and texture are based. </p>
Multi-crystal cubic insulin example data set recorded on i24
<p>Data collected as part of routine commissioning on Diamond Light Source beamline i24 15th August 2022 with samples prepared by Felicity Bertram at Diamond following standard techniques. Data are individually incomplete but combined make for a reasonably complete and reasonable data set. </p> <p> </p> <p>Purpose of the data upload is to make data available for tutorials using the DIALS toolchain (see e.g. examples at https://github.com/graeme-winter/dials_tutorials) however data are available for all purposes without limitation. </p>
Crystal structure of a 1:1 cocrystal of OPC-167832 with 2,5-dihydroxybenzoic acid using microcrystal electron diffraction
<p>The title cocrystal, OPC-167832 (5-(((3R,4R)-1-(4-chloro-2,6-difluorophenyl)-3,4-dihydroxypiperidin-4-yl)methoxy)-8-fluoro-3,4-dihydroquinolin-2(1H)-one); C<sub>21</sub>H<sub>20</sub>ClF<sub>3</sub>N<sub>2</sub>O<sub>4</sub>) and 2,5-dihydroxybenzoic acid (2,5DHBA; C<sub>7</sub>H<sub>6</sub>O<sub>4</sub>) were successfully cocrystallized and the crystal structure was solved via microcrystal electron diffraction.</p>
Text-fig. 5. Lithocarpoxylon ashwillii sp. nov., UF 279-24544. a, b: Semi-ring porous wood, exclusively solitary vessels in a radial/ diagonal arrangement, diffuse axial parenchyma, TS. c: Homocellular rays composed of procumbent cells; vasicentric tracheids; vessel elements with simple perforation plates (PP), TLS. d: Vessel-ray parenchyma pits (VRP) with reduced borders, vertical, RLS. e: Crystalliferous axial parenchyma strand (C) with a single crystal per chamber; ray with procumbent cells, RLS. f: Aggregate ray (right) composed of loosely associated 1–2-seriate rays, TLS. g: Uniseriate rays, thin-walled tyloses in vessels, vasicentric tracheids (VT). Lithocarpoxylon sp., UF 279-84864. h, i: Semi-ring porous wood, exclusively solitary vessels in radial arrangement. j: Aggregate ray and uniseriate rays. k: Scalariform perforation plate with fewer than 10 bars. l: Vessel-ray parenchyma pits with reduced borders to simple, vertical. Scale bars: 200 µm in a, b, f, h, j; 100 µm in c, i; 50 µm in d. e; 20 µm in k, l. in A Diverse Assemblage Of Late Eocene Woods From Oregon, Western Usa
Text-fig. 5. Lithocarpoxylon ashwillii sp. nov., UF 279-24544. a, b: Semi-ring porous wood, exclusively solitary vessels in a radial/ diagonal arrangement, diffuse axial parenchyma, TS. c: Homocellular rays composed of procumbent cells; vasicentric tracheids; vessel elements with simple perforation plates (PP), TLS. d: Vessel-ray parenchyma pits (VRP) with reduced borders, vertical, RLS. e: Crystalliferous axial parenchyma strand (C) with a single crystal per chamber; ray with procumbent cells, RLS. f: Aggregate ray (right) composed of loosely associated 1–2-seriate rays, TLS. g: Uniseriate rays, thin-walled tyloses in vessels, vasicentric tracheids (VT). Lithocarpoxylon sp., UF 279-84864. h, i: Semi-ring porous wood, exclusively solitary vessels in radial arrangement. j: Aggregate ray and uniseriate rays. k: Scalariform perforation plate with fewer than 10 bars. l: Vessel-ray parenchyma pits with reduced borders to simple, vertical. Scale bars: 200 µm in a, b, f, h, j; 100 µm in c, i; 50 µm in d. e; 20 µm in k, l.
Text-fig. 16. Photomicrographs of thin sections of specimen BP/16/1734, Terminalioxylon mozambicense sp. nov. from Mhengere Hill, Gorongosa, Mozambique. a: TS with round vessels, scanty paratracheal to vasicentric parenchyma, diffuse and narrow terminal or initial bands; b: TS at higher magnification, note the very narrow rays; c: TLS, vessels with small alternate pits, and partly tylosed; d–g: TLS with crystals (small white arrows) in the parenchyma cells, medium to thick-walled fibres and uniseriate, low rays; h: TLS, rays up to 20 cells high; i: RLS rays with procumbent body cells and 1–2 rows of marginal upright cells. in Stratigraphy, Chronology And Palaeontology Of The Tertiary Rocks Of The Cheringoma Plateau, Mozambique
Text-fig. 16. Photomicrographs of thin sections of specimen BP/16/1734, Terminalioxylon mozambicense sp. nov. from Mhengere Hill, Gorongosa, Mozambique. a: TS with round vessels, scanty paratracheal to vasicentric parenchyma, diffuse and narrow terminal or initial bands; b: TS at higher magnification, note the very narrow rays; c: TLS, vessels with small alternate pits, and partly tylosed; d–g: TLS with crystals (small white arrows) in the parenchyma cells, medium to thick-walled fibres and uniseriate, low rays; h: TLS, rays up to 20 cells high; i: RLS rays with procumbent body cells and 1–2 rows of marginal upright cells.
Text-fig. 15. Photomicrographs of thin sections of holotype BP/16/1738, Sorindeioxylon gorongosense gen. et sp. nov. from Muaredzi site 5, Gorongosa, Mozambique. a: TS, note the irregularly spaced and very narrow bands of parenchyma and mostly solitary vessel elements; b: TS at higher magnification with narrow rays; c: radial longitudinal section (RLS), rather oblique but shows the alternate, small-to-medium inter-vessel pits; d: tangential longitudinal section (TLS), rays are 1–3 cells wide but maintain the same width. Small arrow towards the right hand ray indicates a prismatic crystal in the ray cell; e: TLS rays with fibres in between; f: RLS showing mixed ray cells (upright, square and procumbent) poorly preserved. in Stratigraphy, Chronology And Palaeontology Of The Tertiary Rocks Of The Cheringoma Plateau, Mozambique
Text-fig. 15. Photomicrographs of thin sections of holotype BP/16/1738, Sorindeioxylon gorongosense gen. et sp. nov. from Muaredzi site 5, Gorongosa, Mozambique. a: TS, note the irregularly spaced and very narrow bands of parenchyma and mostly solitary vessel elements; b: TS at higher magnification with narrow rays; c: radial longitudinal section (RLS), rather oblique but shows the alternate, small-to-medium inter-vessel pits; d: tangential longitudinal section (TLS), rays are 1–3 cells wide but maintain the same width. Small arrow towards the right hand ray indicates a prismatic crystal in the ray cell; e: TLS rays with fibres in between; f: RLS showing mixed ray cells (upright, square and procumbent) poorly preserved.
Exploring Bifurcations in Bose-Einstein Condensates via Phase Field Crystal Models
<p>Supplementary data for the following paper: Alina Barbara Steinberg, Fabian Maucher, Svetlana Gurevich, Uwe Thiele, "Exploring Bifurcations in Bose-Einstein Condensates via Phase Field Crystal Models"</p>
Single Crystal X-ray diffraction data for D-phgAT
<p>Single Crystal X-ray diffraction data for Dpg-AT from <em>Pseudomonas stutzeri. </em>Data collected at Diamond Light Source, on beamline I03 on 18/02/2017.</p>
Exceptional electronic transport and quantum oscillations in thin bismuth crystals grown inside van der Waals materials
<p>Confining materials to two-dimensional forms changes the behavior of electrons and enables new devices. However, most materials are challenging to produce as uniform thin crystals. Here, we present a synthesis approach where thin crystals are grown in a nanoscale mold defined by atomically-flat van der Waals (vdW) materials. By heating and compressing bismuth in a vdW-mold made of hexagonal boron nitride (hBN), we grow ultraflat bismuth crystals less than 10 nanometers thick. Due to quantum confinement, the bismuth bulk states are gapped, isolating intrinsic Rashba surface states for transport studies. The vdW-molded bismuth shows exceptional electronic transport, enabling the observation of Shubnikov–de Haas quantum oscillations originating from the (111) surface state Landau levels. By measuring the gate-dependent magnetoresistance, we observe multi-carrier quantum oscillations and Landau level splitting, with features originating from both the top and bottom surfaces. Our vdW-mold growth technique establishes a platform for electronic studies and control of bismuth’s Rashba surface states and topological boundary modes. Beyond bismuth, the vdW-molding approach provides a low-cost way to synthesize ultrathin crystals and directly integrate them into a vdW heterostructure. </p>
Effect of low-temperature compression on crystal structure and superconductivity in strontium metal
<p>The superconducting and structural properties of elemental strontium metal were studies as a function of pressure to 60 GPa, while maintaining cryogenic conditions during the pressure application.</p> <p>This data set includes raw and analyzed electrical resistivity and xray diffraction data.</p>
РИС. 7. НедостаточнаЯ промывка раковин глохидиев после очиЩениЯ в Щелочи (5% КОН). А, С. «Замыленность» пор наружной поверхности створок (Cristaria tuberculata, оЗ. Ханка, Приморский кр.). B. Остаток Щелочи, выпавШий кристаллами на поверхности личинки (Unio dembeae, р. Дуко, ЭфиопиЯ). D. Капли раствора Щелочи (укаЗаны стрелками) на поверхности Шипов крючка (Nodularia douglasiae, р. Гион, о-в Хонсю, ЯпониЯ). МасШтаб 5 мкм (А, С), 2 мкм (B, D). Микроскоп Zeiss MERLIN, напыление углеродом (А, В), хромом (С, D). FIG. 7. Insufficient rinsing of glochidia after cleaning in alkali (5% KOH). A, C. «Blurredness» of the exterior valve pores (Cristaria tuberculata, Khanka Lake, Primorsky Krai). B. Precipitation of alkali crystals on the exterior glochidia surface (Unio dembeae, Duko River, Ethiopia). D. Drops of alkali (indicated by arrows) on the hook spines (Nodularia douglasiae, Gion River, Honshu Island, Japan). Scale bars 5 μm (A, C), 2 μm (B, D). Zeiss MERLIN microscope, sputter coating with carbon (A, B) and chromium (C, D). in Методика подготовки раковин глохидиев (Bivalvia, Unionidae) длЯ работы на сканируюЩем Электронном микроскопе
РИС. 7. НедостаточнаЯ промывка раковин глохидиев после очиЩениЯ в Щелочи (5% КОН). А, С. «Замыленность» пор наружной поверхности створок (Cristaria tuberculata, оЗ. Ханка, Приморский кр.). B. Остаток Щелочи, выпавШий кристаллами на поверхности личинки (Unio dembeae, р. Дуко, ЭфиопиЯ). D. Капли раствора Щелочи (укаЗаны стрелками) на поверхности Шипов крючка (Nodularia douglasiae, р. Гион, о-в Хонсю, ЯпониЯ). МасШтаб 5 мкм (А, С), 2 мкм (B, D). Микроскоп Zeiss MERLIN, напыление углеродом (А, В), хромом (С, D). FIG. 7. Insufficient rinsing of glochidia after cleaning in alkali (5% KOH). A, C. «Blurredness» of the exterior valve pores (Cristaria tuberculata, Khanka Lake, Primorsky Krai). B. Precipitation of alkali crystals on the exterior glochidia surface (Unio dembeae, Duko River, Ethiopia). D. Drops of alkali (indicated by arrows) on the hook spines (Nodularia douglasiae, Gion River, Honshu Island, Japan). Scale bars 5 μm (A, C), 2 μm (B, D). Zeiss MERLIN microscope, sputter coating with carbon (A, B) and chromium (C, D).
Crystal Templates for BindingNet v2 Dataset
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Active control of the free surface of a rivulet of a nematic liquid crystal with an electric field
<p><span>The dataset titled "<em>Active Control of the Free Surface of a Rivulet of a Nematic Liquid Crystal with an Electric Field</em>" comprises raw images for Figure 2 and data for Figures 3 as reported in the article in Physical review Fluids.</span></p> <p><span>The files with names starting “Figure2” are the raw .TIF images used for creating the top and side view images shows in Figure 2 (a) and (b). </span></p> <p><span>The file “Figure 3a_Experimental Data.xlsx” includes the experimental data presented in Figure 3a for a 5CB rivulet flowing at volume fluxes of Q=250, 500, and 1000 nL/s.</span></p> <p><span>The file “Figure 3a_Inset_Experimental Data.xlsx” contains control data displayed in the inset of Figure 3a. This data pertains to two controls first Propylene Glycol rivulet flowing at a volume flux of </span><span>𝑄</span><span>=275 nL/S and second liquid crystals LCT 07-1132 rivulet flowing at a volume flux of Q=500nL/s.</span></p> <p><span>The file “Figure 3b_Experimental_Data.xlsx” includes experimental data presented in Figure 3b for 5CB rivulet <span>plotted as a function of the prescribed flux </span></span><span>Q </span><span>for </span><span>V </span><span>= 0 </span><span>V </span><span>and </span><span>V </span><span>= 1000 </span><span>V. </span></p>
Crystal structures and hkl data associated with paper 'The curious case of proton migration under pressure in the malonic acid and 4,4′-bipyridine cocrystal'
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Crystal structures and hkl data associated with paper 'Metal-free negative linear compressibility (NLC) material - the cocrystal of 1,2-bis(4-pyridyl)ethane and fumaric acid'
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DATASET: Facet-Dependent Formation and Adhesion of Au Oxide and Nanoporous Au on Poly-Oriented Au Single Crystals
<p>This project contains all the data shown in the manuscript or SI titled 'Facet-Dependent Formation and Adhesion of Au Oxide and Nanoporous Au on Poly-Oriented Au Single Crystals' (doi:10.26434/chemrxiv-2023-nf7v3). For each figure, a folder was created in which the corresponding data can be found.</p>
FIGURE 1. Translucent 3D in Calcite precipitation forms crystal clusters and muscle mineralization during the decomposition of Cambarellus diminutus (Decapoda: Cambaridae) in freshwater
FIGURE 1. Translucent 3D-models of Cambarellus diminutus sample C7tank in combination with 3D-models of calcite clusters, which precipitated inside the carcass during its decomposition in freshwater. 1.1 3D-model without calcite clusters on day 1. 1.2 3D-model on day 2 showing a small amount of calcite clusters inside the cephalothorax and the first tergite. 1.3 3D-model on day 4 showing a lot of calcite clusters inside the antennules, the left major propodus, the rostrum, the cephalothorax, the tergites, the uropods, and the telson. 1.4 3D-model on day 7, showing widespread calcite clusters at the inner side of the carapace of the carcass except the dorsal side of the cephalothorax and the tergites (see also Figure.4.1). 3D-models were reconstructed based on µ-CT data.
FIGURE 6. 3D in Calcite precipitation forms crystal clusters and muscle mineralization during the decomposition of Cambarellus diminutus (Decapoda: Cambaridae) in freshwater
FIGURE 6. 3D-models and SEM-images of sample C3tank. 6.1 3D-model of the whole crayfish in dorso-lateral view. 6.2 3D-model of the chela of the first left pereiopod in combination with a SEM-image of the calcified muscle of the dactyl. 6.3 SEM-image of a calcified muscle from the inside of the dactyl of the chela of the first left pereiopod. 3Dmodels were reconstructed based on µ-CT data.
FIGURE 5 in Calcite precipitation forms crystal clusters and muscle mineralization during the decomposition of Cambarellus diminutus (Decapoda: Cambaridae) in freshwater
FIGURE 5. SEM-images of several diverse calcite structures which precipitated inside the carcasses. 5.1 Bispherical structure with mineralized setae and a part of the cuticle layers. 5.2 and 5.3 Spherical structures. 5.4 Elliptical structure which is tapering at the left side. 5.5 Complex structure. 5.6 Bispherical structure with mineralized setae and a part of the cuticle layers.
FIGURE 8 in Calcite precipitation forms crystal clusters and muscle mineralization during the decomposition of Cambarellus diminutus (Decapoda: Cambaridae) in freshwater
FIGURE 8. Hypothetical scenarios of calcium dissolution and precipitation of calcite clusters inside decomposing crayfish without (8.1-2) and with gastroliths in tank water (8.3-4). 8.1 Low pH-values around and inside the carcass caused by an enzymatic self-digestion (autolysis) and bacterial activity release dissolved calcium ions which migrate out of the carapace into the body cavity and into the environment (red arrows). 8.2 Increase of the pH-value inside the carcass caused by microbial activities during the putrefaction result in a precipitation of calcite clusters at the inner side of the carapace, consisting of previously dissolved calcium ions out of the cuticle layers. 8.3 Low pH-values around and inside the carcass caused by enzymatic self-digestion (autolysis) and bacterial activity resulted in an accumulation of dissolved calcium ions (red arrows). In addition, low pH conditions inside the stomach and decay of the "gastrolith-cavity-membrane" resulted in dissolving calcium ions from the gastroliths. 8.4 An increase of the pHvalue inside the carcass, along the inner side of the carapace, caused by microbial activities during the putrefaction resulted in a precipitation of calcite clusters by previously dissolved calcium ions out of the cuticle layers and gastroliths.
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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.