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2,001 results for “x-rays”
Fig. 16 in Revision of the Highly Specialized Ant Genus Discothyrea (Hymenoptera: Formicidae) in the Afrotropics with X-Ray Microtomography and 3D Cybertaxonomy
Fig. 16. Shaded surface display of transparent volume renderings showing internal and external flagellar subsegmentation. (A) Discothyrea oculata (CASENT0195471), (B) Proceratium deelemani Perrault, 1981 (CASENT0790842), (C) Brachyponera sennaarensis (Mayr, 1862) (CASENT0790837), (D) Solenopsis invicta Buren, 1972 (OKENT0011209).
Fig. 20 in Revision of the Highly Specialized Ant Genus Discothyrea (Hymenoptera: Formicidae) in the Afrotropics with X-Ray Microtomography and 3D Cybertaxonomy
Fig. 20. Stacked digital color images of D. oculata Emery, 1901 paralectotype (CASENT0903856 - from https://www.antweb.org, photographer Michele Esposito). (A) body in profile, (B) body in dorsal view, (C) head in full-face view.
Fig. 9 in Revision of the Highly Specialized Ant Genus Discothyrea (Hymenoptera: Formicidae) in the Afrotropics with X-Ray Microtomography and 3D Cybertaxonomy
Fig. 9. Diagnostic plate showing still images from surface volume renderings of the mesosoma in profile (the remainder of the body virtually removed). All Afrotropical species are shown, species names are embedded in each particular image for better comparison and orientation. Specimen codes are given inTable 1.
Fig. 12 in Revision of the Highly Specialized Ant Genus Discothyrea (Hymenoptera: Formicidae) in the Afrotropics with X-Ray Microtomography and 3D Cybertaxonomy
Fig. 12. Diagnostic plate showing still images from surface volume renderings of the petiole and gaster in profile (the remainder of the body virtually removed).All Afrotropical species are shown, species names are embedded in each particular image for better comparison and orientation. Specimen codes are given inTable 1.
Fig. 15 in Revision of the Highly Specialized Ant Genus Discothyrea (Hymenoptera: Formicidae) in the Afrotropics with X-Ray Microtomography and 3D Cybertaxonomy
Fig. 15. Antennal anatomy showing flagellar fusion in Discothyrea. (A) D. mixta (CASENT0285473)—light microscopy, (B) D. traegaordhi (CASENT0790122) —light microscopy, (C) D. traegaordhi (CASENT0790122)—equivalent view to 15B but performed with surface volume rendering, (D) Zasphinctus sarowiwai Hita Garcia, 2017 (CASENT0764654)—sagittal section of surface volume rendering, (E) D. traegaordhi (CASENT0790122)—sagittal section of surface volume rendering, (F) D. mixta (CASENT0790542)—surface volume rendering showing each antennomere in different color, (G) D. mixta (CASENT0790542)—equivalent view to 15F but sagittal section, (H) D. dryad (CASENT0247374)—sagittal section of surface volume rendering showing each antennomere in different color, (I) D. gryphon (CASENT0790103), sagittal section of surface volume rendering showing each antennomere in different color.
Fig. 11 in Revision of the Highly Specialized Ant Genus Discothyrea (Hymenoptera: Formicidae) in the Afrotropics with X-Ray Microtomography and 3D Cybertaxonomy
Fig. 11. Diagnostic plate showing still images from surface volume renderings of the posterior propodeum in posterior view (the remainder of the body virtually removed). All Afrotropical species are shown, species names are embedded in each particular image for better comparison and orientation. Specimen codes are given inTable 1.
Energy-dependence of the response of X-ray multimeter for mammography- radiation qualities - Supplemental Data
<p>Supplementary data to the manuscript “Energy-dependence of the response of X-ray multimeter for mammography- radiation qualities” by Elisabeth Salomon and Paula Toroi</p>
Body temperature protein X-ray crystallography at 37°C: A rhenium protein complex seeking a physiological condition structure: Raw Diffraction Images (112 week soak) Zenodo
<p>The labratory dataset of the raw diffraction images obtained after 112 weeks of soaking in the mother liquor and collected at a wavelength of 1.54 Å, illustrating the covalent coordination of the rhenium(I) tricarbonyl fragment to the His and Asp amino acid residues as well as other similarities when comparing the 37°C data set to 100K data set as described in the publication titled "Body temperature protein X-ray crystallography at 37°C: A rhenium protein complex seeking a physiological condition structure", written by Jacobs, Helliwell & Brink,<em> ChemComm</em>, 2024.</p> <p>The raw diffraction images for the labratory data sets are made available at the Zenodo research data archive, as specified in the publication.</p>
Paired X-ray Micro CT Scanning and individual foraminifera isotopic analysis reveal (de)coupled changes in carbonate preservation and temperature
<p>To assess the coupling between drivers of isotopic variability and carbonate dissolution in foraminifera, we combine individual foraminiferal carbon and oxygen isotopic analyses (IFA) and X-ray MicroCT Scanning (XMCT)-based measurements of test densities (a proxy for the extent of post-depositional dissolution). As a proof-of-concept application of this approach, we analyze Globigerina bulloides tests from both coretop and downcore (latest Miocene/earliest Pliocene-aged) sediment from Ocean Drilling Project (ODP) Site 1088 (Agulhas Ridge).<br>Sediments from both the core intervals were wet-sieved over a 150 μm sieve and oven-dried at 55°C overnight. Individual tests of G. bulloides were picked from the >150 μm size fraction and gently brushed with the wet tip of a paintbrush to remove any adhering clay. Broken or partially fragmented tests were avoided. 25-50 individuals were mounted on a 1.2cm x 1 cm cardboard sample holder using double-sided carbon and imaged at a time on a Bruker Skyscan 1272 Micro-CT Scanner. In total, 123 individuals from the coretop sample and 88 individuals from the downcore sample were scanned.<br>Stable carbon (δ¹³C) and oxygen (δ¹⁸O) isotopic compositions of individual foraminifera were measured using a Kiel Carbonate Device IV coupled to a Thermo Fisher MAT 253 Plus Isotope Ratio Mass Spectrometer (IRMS). All individuals were weighed on a Sartorius ultramicrobalance before analysis, and only samples with mass >10 µg were analyzed as per the long-term precision setup of analyzing small quantities of carbonates on this machine. The XMCT-IFA dataset in this study consists of δ¹³C and δ¹⁸O values of 90 foraminifera (67 coretop and 23 downcore individuals). We compare population averages of XMCT parameters and isotopic compositions from both the coretop and downcore sediments.</p>
Data used in the paper "Operation of Photo Electron Spectrometers for Non-Invasive Photon Diagnostics at the European X-ray Free Electron Laser"
<p>Data recorded for the experiment at the European XFEL are available at <strong>doi:10.22003/XFEL.EU-DATA-900072-00, </strong><strong>doi:10.22003/XFEL.EU-DATA-900073-00, </strong><strong>doi:10.22003/XFEL.EU-DATA-900268-00, </strong><strong>doi:10.22003/XFEL.EU-DATA-900307-00, and </strong><strong>doi:10.22003/XFEL.EU-DATA-900405-00</strong>.</p> <p> </p> <p> </p> <p> </p> <p> </p> <p> </p>
X-ray diffraction data of xylose isomerase from Streptomyces avermitilis
<p>X-ray diffraction data of xylose isomerase from Streptomyces avermitilis</p> <p>Data type: X-ray diffraction images<br>Data format: img</p> <p>Data collection<br>Synchrotron: Pohang Light Source II<br>Beamline: 7A</p> <p> </p> <p> </p>
Dataset for: Dynamically patterning X-ray beam by a femtosecond optical laser
<p>This record contains the image and plot data for the paper "Dynamically patterning X-ray beam by a femtosecond optical laser".</p>
Hard X-ray photoelectron spectroscopy probing Fe segregation during oxygen evolution reaction
Open the record for dataset details and reuse information.
Data from: Revision of Icacinaceae from the Early Eocene London Clay flora based on X-ray micro-CT
The Early Eocene (Ypresian) London Clay Formation contains one of the most important fruit and seed assemblages from the Paleogene, including a large diversity of taxa (>350 spp.) preserved as pyrite permineralizations retaining 3D structure as well as anatomical detail. Despite the importance of the flora for understanding angiosperm biogeographic and evolutionary history, the majority of the fossil material has not been revisited since the original taxonomic treatments by E.M. Reid and M.E.J. Chandler. Given subsequent advances in our understanding of angiosperm phylogeny and fruit morphology, coupled with technological advances in imaging/visualizing fossil material, many of the taxa represented in the flora deserve further study. Here we present a revision of the pantropical family Icacinaceae using X-ray micro-computed tomography (micro-CT) images of 21 species from the flora. Based on the results, four new combinations are made, a new fossil-genus is established for a distinctive species with affinities to the Phytocreneae, and emended diagnoses are provided for eight taxa. Of the seven genera recognized from the flora, only one, Iodes Blume, is extant. This study offers important insights on the biogeographic and evolutionary history of Icacinaceae, which is one of the most abundant and diverse components of the flora from the London Clay Formation.
FIGURES 1–4 in The first extinct species of Monolepta Chevrolat (Coleoptera: Chrysomelidae Galerucinae) from Bitterfeld amber, described using X-ray micro-computed tomography
FIGURES 1–4. Photomicrographs of Monolepta rappsilberi sp. nov., holotype, No T-I-K-30 [CIR], female: 1—habitus, dorsal view; 2—habitus, ventral view; 3—details of abdomen; 4—tarsi. Abbreviations: ca—carina, mst—mesotibia, mtt—metatibia, prt—protibia, v1–v5—abdominal ventrites 1–5. Not reproduced to the same scale.
FIGURES 12–13. X in The first extinct species of Monolepta Chevrolat (Coleoptera: Chrysomelidae Galerucinae) from Bitterfeld amber, described using X-ray micro-computed tomography
FIGURES 12–13. X-ray micro-CT renderings of Monolepta rappsilberi sp. nov., holotype, No T-I-K-30 [CIR]: 12—head (right antenna removed), frontal view; 13—details of forebody without legs, ventral view. Abbreviations: as—antennal sock- et, c—clypeus, fc—frontal carina, ft—frontal tubercle, l—labrum, mp3–mp4—maxillary palpomeres 3–4, os—orbital sulcus, scs—supracallar sulcus, sos—supraorbital sulcus. Scale bar represents 0.5 mm.
FIGURES 5–8. X in The first extinct species of Monolepta Chevrolat (Coleoptera: Chrysomelidae Galerucinae) from Bitterfeld amber, described using X-ray micro-computed tomography
FIGURES 5–8. X-ray micro-CT renderings of Monolepta rappsilberi sp. nov., holotype, No T-I-K-30 [CIR], habitus: 5—dorsal view; 6—ventral view; 7—right lateral vie; 8—left lateral view. Scale bar represents 1.0 mm.
FIGURES 9–11. X in The first extinct species of Monolepta Chevrolat (Coleoptera: Chrysomelidae Galerucinae) from Bitterfeld amber, described using X-ray micro-computed tomography
FIGURES 9–11. X-ray micro-CT renderings of Monolepta rappsilberi sp. nov., holotype, No T-I-K-30 [CIR]: 9—habitus, caudal view; 10—details of forebody, dorsal view; 11—habitus without legs, ventral view. Not reproduced to the same scale.
Data from: Next-generation morphological character discovery and evaluation: an X-ray micro-CT enhanced revision of the ant genus Zasphinctus Wheeler (Hymenoptera, Formicidae, Dorylinae) in the Afrotropics
New technologies for imaging and analysis of morphological characters offer opportunities to enhance revisionary taxonomy and better integrate it with the rest of biology. In this study, we revise the Afrotropical fauna of the ant genus Zasphinctus Wheeler, and use high-resolution X-ray microtomography (micro-CT) to analyse a number of morphological characters of taxonomic and biological interest. We recognise and describe three new species: Z. obamai sp. n., Z. sarowiwai sp. n., and Z. wilsoni sp. n. The species delimitations are based on the morphological examination of all physical specimens in combination with 3D scans and volume reconstructions. Based on this approach, we present a new taxonomic discrimination system for the regional fauna that consists of a combination of easily observable morphological characters visible at magnifications of around 80–100 ×, less observable characters that require higher magnifications, as well as characters made visible through virtual dissections that would otherwise require destructive treatment. Zasphinctus are rarely collected ants and the material available to us is comparatively scarce. Consequently, we explore the use of micro-CT as a non-invasive tool for the virtual examination, manipulation, and dissection of such rare material. Furthermore, we delineate the treated species by providing a diagnostic character matrix illustrated by numerous images and supplement that with additional evidence in the form of stacked montage images, 3D PDFs and 3D rotation videos of scans of major body parts and full body (in total we provide 16 stacked montage photographs, 116 images of 3D reconstructions, 15 3D rotation videos, and 13 3D PDFs). In addition to the comparative morphology analyses used for species delimitations, we also apply micro-CT data to examine certain traits, such as mouthparts, cuticle thickness, and thoracic and abdominal muscles in order to assess their taxonomic usefulness or gain insights into the natural history of the genus. The complete datasets comprising the raw micro-CT data, 3D PDFs, 3D rotation videos, still images of 3D models, and coloured montage photos have been made available online as cybertypes (Dryad, http://dx.doi.org/10.5061/dryad.4s3v1).
Data from: Location of water in fresh sugarcane bagasse observed by synchrotron X-ray microtomography
Sugarcane bagasse is a vast lignocellulosic byproduct generated in the industry with ~50% humidity (1 kg dry matter associated with 1 kg water). Although the presence of water brings deleterious consequences for combustion, storage and sugar extraction, the location of water in fresh bagasse remains unknown. In this work, we use synchrotron X-ray microtomography for non-invasive 3D imaging of fresh bagasse particles, which allows the visualization of intraparticle water. The sclerified fiber cells in the sheaths surrounding xylem vessels are often found full of water. We suggest this can be juice preserved from the native stalks as many sclerified fibers seem to keep their structural integrity despite the mechanical action during sugarcane crushing. The microtomograms of fresh bagasse also shows mineral particles adhered to biomass surfaces, with adhesion presumably favored by the presence of water. In summary, this work unveils the location of water in fresh bagasse, solving an old mystery of sugarcane technology.
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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.