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1,630 results for “Stepping”
FIGURES 20–25 in Revised taxonomy and redescription of two species of the Peripatidae (Onychophora) from Brazil: a step towards consistent terminology of morphological characters
FIGURES 20–25. Epiperipatus machadoi comb. nov.. 20. Dorsal primary papilla with at least eight scale ranks (white dots) in basal piece (bp) and three ranks (black dots) in apical piece (ap). 21. Detail of apical piece (ap) showing asymmetry in position of sensory bristle (br). 22. Primary papilla at level of legs with elongated basal (bp) and apical pieces (ap). Scale ranks are indicated by black and white dots. 23. Ventral foot surface with one to two bristles on each proximal (sp) and distal setiform ridge (sd). 24–25. Details of duplicated and single bristles (br) from proximal setiform ridge.
FIGURES 14–19 in Revised taxonomy and redescription of two species of the Peripatidae (Onychophora) from Brazil: a step towards consistent terminology of morphological characters
FIGURES 14–19. Epiperipatus machadoi comb. nov.. 14. Dorsal colour pattern. 15. Ventral colour pattern. 16. Outer blade with one principal (pt) and one accessory teeth (at). Anterior is up, ventral is left. 17. Inner blade with single principal tooth (pt), one accessory tooth (at) and six denticles (dt). Anterior is up, ventral is left. 18. Overview of dorsal integument showing primary (pp) and accessory papillae (ac) distribution pattern. 19. Detail of primary (pp) and accessory papillae (ac) from dorsal integument.
FIGURES 2–7. Epiperipatus acacioi comb. nov. 2 in Revised taxonomy and redescription of two species of the Peripatidae (Onychophora) from Brazil: a step towards consistent terminology of morphological characters
FIGURES 2–7. Epiperipatus acacioi comb. nov. 2. Dorsal colour pattern (photo: Ubirajara de Oliveira). 3. Ve ntral colour pattern (photo: Ubirajara de Oliveira). 4. Outer jaw blade with a single principal tooth (pt). Anterior is up, ventral is left. 5. Inner jaw blade showing single principal tooth (pt), one accessory tooth (at), and eight denticles (dt). Anterior is up, ventral is left. 6. Overview of dorsal integument and its primary (pp) and accessory papillae (ac). 7. Details of dorsal primary papilla showing basal piece (bp) and asymmetrical apical piece (ap) with sensory bristle (br). Dotted line indicates constriction separating basal and apical pieces.
FIGURE 1 in Revised taxonomy and redescription of two species of the Peripatidae (Onychophora) from Brazil: a step towards consistent terminology of morphological characters
FIGURE 1. Ecological regions (different greyscale values) and collecting sites (numbered) in the Minas Gerais State, Brazil. I: Estação Ecológica do Tripuí (Ecological station of Tripuí). II: Parque Estadual do Itacolomi (Itacolomi State Park). III: Reserva Particular do Patrimônio Natural Feliciano Miguel Abdala (Particular Reserve of Natural Patrimony Feliciano Miguel Abdala). Source of original maps: Instituto Brasileiro de Geografia e Estatística, 2003.
FIGURES 8–13 in Revised taxonomy and redescription of two species of the Peripatidae (Onychophora) from Brazil: a step towards consistent terminology of morphological characters
FIGURES 8–13. Epiperipatus acacioi comb. nov.. 8. Dorsal primary papilla with at least six scale ranks (white dots) in basal piece (bp) and three scale ranks (black dots) in apical piece (ap). 9. Detail of apical piece (ap) of dorsal primary papilla showing sensory bristle (br). 10. Detail of constriction (cs) separating basal piece (bp) from apical piece (ap). 11. Primary papilla at level of legs with elongated basal (bp) and apical pieces (ap). 12. Detail of apical piece at level of legs, with more regular and elongated scales (sl) and well-developed sensory bristle (br). 13. Ventral foot surface with one to two bristles on each distal (sd) and proximal setiform ridge (sp).
FIGURES 26–27 in Revised taxonomy and redescription of two species of the Peripatidae (Onychophora) from Brazil: a step towards consistent terminology of morphological characters
FIGURES 26–27. Colour pattern observed after fixation of specimens in ethanol, which resulted in loss of red pigment. 26. Epiperipatus acacioi. 27. E. machadoi.
Old Mandu (बूढ़ी मांडू), Dhār district, Madhya Pradesh. Step well.
<p>Old Mandu (बूढ़ी मांडू), Dhār district, Madhya Pradesh. Step well. Photo 2/2010.</p>
Late steps of allelic break-induced replication suppress tandem duplication associated with BRCA1 deficiency
<p><a name="OLE_LINK1"></a><span lang="EN-US">Microhomology-mediated tandem duplication (TD) is a distinct mutational signature in <em>BRCA1</em>-deficient tumors. While several mechanisms have been proposed for its generation, much understanding comes from repeat-based reporters, which may not represent the region of the human genome lacking neighboring repeats. To address this limitation, we developed a repeat-less TD reporter and a PCR-based endogenous site-specific TD assay to examine TDs induced by replication-coupled single-ended DNA double-strand breaks (seDSBs) in <em>Brca1</em>-deficient mouse embryonic stem cells. We found that TDs from seDSBs were detectable in normal cells but significantly increased in <em>Brca1</em>-deficient cells. This increase did not involve classical non-homologous end joining. TD formation appeared to be facilitated by a switch to microhomology-mediated non-allelic sister chromatid recombination from initial allelic DNA synthesis, suggesting that allelic DNA synthesis, a late step of allelic break-induced replication (aBIR), is more prone to premature termination in <em>Brca1</em>-deficient cells, promoting TDs. Disrupting RAD51 loading reduced TDs in wild-type cells but not in <em>Brca1</em>-deficient cells, indicating both RAD51-dependent and -independent pathways for TD formation. Additionally, RAD54 and BRCA1-BARD1 suppressed TDs in a RAD51-dependent manner, with BARD1's effect partially mediated through RAD51 interaction. These findings together implicate late steps of aBIR in TD suppression and provide novel insights into the mechanisms underlying <em>BRCA1</em>-linked TD formation in cancer.</span></p> <p><span lang="EN-US"> </span></p>
On the stepped-leader development of negative cloud-to-ground lightning associated with the evolution of thunderstorm
<p>The files contain the complete radar and lightning datasets of the 12 thunderstorms used in the analysis presented in “On the stepped-leader development of negative cloud-to-ground lightning associated with the evolution of thunderstorms.”</p>
Spectral hardness of X- and gamma-ray emissions from lightning stepped and dart leaders
<p>This repository has four folders dedicated to the 11 triggers outlined in the manuscript. Within each folder, the data is organized according to the four sensors:</p><ol><li><strong>Slow Antenna Folder:</strong> For every trigger, there is a corresponding .asc file paired with a complementary .readme file. Additionally, this folder includes a <i>.txt </i>file that lists the file names and UTC times.</li><li><strong>LEFA:</strong> The <i>*.txt</i> files within this section consist of four columns representing seconds after midnight (UTC), instrument power voltage, sensitive channel, medium channel, and unsensitive channel. The file names adhere to the format <i>lefa2-yymmdd-hhmm00.txt</i>, each containing one minute of LEFA data.</li><li><strong>DAS:</strong> Files in this category follow the format <i>XRAY_yyyy.mm.dd_hh-mm-ss_milliseconds.channel[B,C, or D].csv</i>, with UTC time. The file name corresponds to time zero in the data. The first column denotes seconds from/after zero, while the second column represents the measured data in Volts. The channels (B, C, D) correspond to Fast Antenna, LaBr detector, and NaI detector, respectively. The instrument has a sampling rate of 180 MHz.</li><li><strong>Fieldmill:</strong>The file names in this section adhere to the format<i> kv2022mmdd-hhmm.flt </i>and are accompanied by a calibration file.</li></ol>
FIGURE 4 in Second-step lectotypification of four names in the genus Burmannia (Burmanniaceae)
FIGURE 4. Second-step lectotype of Burmannia tisserantii Schlechter (barcode P00076031!). © P herbarium, Muséum National d'Histoire Naturelle, Paris. Reproduced with permission.
FIGURE 1 in Second-step lectotypification of four names in the genus Burmannia (Burmanniaceae)
FIGURE 1. Second-step lectotype of Burmannia cochinchinensis Gagnepain (barcode P00738852!). © P herbarium, Muséum National d'Histoire Naturelle, Paris. Reproduced with permission.
Single-Molecule FRET-Resolved Protein Dynamics - from Plasmid to Data in Six Steps
<p>SmFRET trace files of 58 yeast Hsp90 molecules (in presence of AMP-PNP) containing raw intensity values through time of acceptor emission after acceptor excitation (r_r_*), donor emission after donor excitation (o_g_*), and acceptor emission after donor excitation (r_g_*).</p>
Stone steps
Stone steps scanned with 3D Live Scanner Pro and a Samsung S20+. Source: Objaverse 1.0 / Sketchfab
Data and code for "Superconducting switching jump induced missing first Shapiro step in Al-InSb nanosheet Josephson junctions"
<p><strong>Brief description</strong></p> <p>This repository contains data, code, and other materials for "Superconducting switching jump induced missing first Shapiro step in Al-InSb nanosheet Josephson junctions" (arXiv:2403.07370). </p> <p><strong>Data formats</strong></p> <ul> <li>DAT: Plain-text tabular data.<br>DAT files can be visualized by Spyview, qtplot (a portable version for Windows can be downloaded <a href="https://github.com/cover-me/qtplot/releases/download/2020.09.21/qt_plot.2020.09.21.7z">here</a>), Jupyter notebooks in ZIP files or <a href="https://github.com/cover-me/qtview">here</a>.</li> <li>SET: Instrument settings.</li> <li>PY: Measurement scripts.</li> <li>IPYNB or HTML: Jupyter notebooks with code and figures. IPYNB can be previewed on this <a href="https://kokes.github.io/nbviewer.js/viewer.html">page</a>.</li> </ul>
FIGURE 5 in One more step in solving the Chydorus puzzle-a morphological comparison between Chydorus tilhoi Rey & Saint-Jeans, 1969 and Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera)
FIGURE 5. Chydorus tilhoi Rey & Saint-Jeans, 1969 from the Congo River Basin, Africa, parthenogenetic female. A, limb V; B, idem, outline showing variation on the exopodite shape; C-D, postabdomen. Scale bars = 0.05 mm.
FIGURE 4 in One more step in solving the Chydorus puzzle-a morphological comparison between Chydorus tilhoi Rey & Saint-Jeans, 1969 and Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera)
FIGURE 4. Chydorus tilhoi Rey & Saint-Jeans, 1969 from the Congo River Basin, Africa, parthenogenetic female. A, limb I; B, idem, arrows showing stiff setae; C, idem, ODL and IDL; D, Limb II; E, limb III; F, idem, basal endite; G, limb IV; H, idem, basal endite and gnathobasic filter plate. Scale bars = 0.05 mm.
FIGURE 3 in One more step in solving the Chydorus puzzle-a morphological comparison between Chydorus tilhoi Rey & Saint-Jeans, 1969 and Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera)
FIGURE 3. Chydorus tilhoi Rey & Saint-Jeans, 1969 from the Congo River Basin, Africa, parthenogenetic female. A, habitus; B, dorsal view; C, ventral margin of carapace, anterior portion; D, ventral margin of carapace, posterior portion with denticles; E, head shield; F, idem, rostrum; G, head pores; H, labral keel; I, idem, frontal view; J, antenna I; K, antenna II. The authors thank to Dr. Alexey A. Kotov and an anonymous reviewer for the valuable suggestions and criticism. Scale bars = 0.05 mm.
FIGURE 6 in One more step in solving the Chydorus puzzle-a morphological comparison between Chydorus tilhoi Rey & Saint-Jeans, 1969 and Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera)
FIGURE 6. Chydorus tilhoi Rey & Saint-Jeans, 1969 from the Congo River Basin, Africa, parthenogenetic female. A-B, habitus; C, rostrum; D, rostrum and antennule; E, denticle on the labral keel; F, arrow showing the position of major head pore; G, major head pore with a thick rim; H, ventral margin of carapace, anterior portion; I, ventral margin of carapace, median and posterior portions; J, denticle on the posteroventral margin of carapace.
FIGURE 2 in One more step in solving the Chydorus puzzle-a morphological comparison between Chydorus tilhoi Rey & Saint-Jeans, 1969 and Chydorus sphaericus (O.F. Müller, 1776) (Crustacea: Cladocera)
FIGURE 2. Chydorus sphaericus (O.F. Müller, 1776) from the Bjørndalsvatn Lake Sveindal-Hornnes, Norway, parthenogenetic female. A, limb I; B, idem, anterior seta 1; C, idem, arrow showing stiff setae; D, idem, ODL and IDL. E, limb II; F, limb III; G, idem, basal endite; H, limb IV; I, idem, distal and basal endites; J, limb V; K, idem, inner lobe. Scale bars = 0.05 mm.
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.