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1,642 results for “vein”
Preventing Seroma Formation After Stripping Saphenous Vein in Coronary Bypass
ClinicalTrials.gov study NCT02010996. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Comparison of Intravitreal Anti-VEGF Versus Combination Therapy in Central Retinal Vein Occlusion
ClinicalTrials.gov study NCT04812977. IPD Sharing: NO. Countries: 1. Publications: 2.
Once - Daily Oral Direct Factor Xa Inhibitor Rivaroxaban In The Long-Term Prevention Of Recurrent Symptomatic Venous Thromboembolism In Patients With Symptomatic Deep-Vein Thrombosis Or Pulmonary Embo
ClinicalTrials.gov study NCT00439725. IPD Sharing: Not stated. Countries: 33. Publications: 6.
A Study to Test Whether Two Different Doses of Avenciguat Help People With Liver Cirrhosis and High Blood Pressure in the Portal Vein (Main Vessel Going to the Liver)
ClinicalTrials.gov study NCT05161481. IPD Sharing: YES. Countries: 22. Publications: 1.
A Safety and Efficacy Study of OZURDEX® in Macular Edema Associated With Branch Retinal Vein Occlusion
ClinicalTrials.gov study NCT01903720. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Regulation of Coagulation in Orthopedic Surgery to Prevent Deep Vein Thromboembolism (DVT) and Pulmonary Embolism (PE). A Study of BAY59-7939 in the Prevention of Venous Thrombo Embolism (VTE) in Subj
ClinicalTrials.gov study NCT00362232. IPD Sharing: Not stated. Countries: 13. Publications: 1.
A Study Evaluating Dosing Regimens for Treatment With Intravitreal Ranibizumab Injections in Subjects With Macular Edema Following Retinal Vein Occlusion
ClinicalTrials.gov study NCT01277302. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Saphenous Vein Cannulation in Infants and Small Children
ClinicalTrials.gov study NCT01924975. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Evaluation Of Fondaparinux (Also Called ARIXTRA) 2.5 mg Subcutaneously Once Daily For The Treatment Of Superficial Thrombophlebitis (Also Known As Superficial Vein Thrombosis)
ClinicalTrials.gov study NCT00443053. IPD Sharing: Not stated. Countries: 17. Publications: 2.
Data from: Microevolutionary selection dynamics acting on immune genes of the green veined white butterfly, Pieris napi
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Data recorded for leaf size, and leaf vein and areole measurements taken from nine Magnoliaceae species
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Lemon zinc finger protein ClSUP induces the accumulation of reactive oxygen species and inhibits citrus yellow vein-clearing virus infection via interactions with ClDOF3.4
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Data from: Insect pollinators show constancy for different flower traits between the most‐ and less‐preferred plants: a case study of the long‐proboscid tangle‐veined fly
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Identification of Megaselia (Diptera: Phoridae) species using wing vein landmarking
<p>A semi-automated identification system using wing venation is described for the large, taxonomically challenging genus <i>Megaselia</i> Rondani (Diptera: Phoridae). Wing photographs make two-dimensional images that can be landmarked and analyzed to produce transformed (standardized) x-y coordinates, and are well-suited for a semi-automated approach. We landmarked wing photographs of individuals of 108 specimens of <i>Megaselia</i> from the ZADBI (Zurqui All Diptera Biodiversity Inventory) project, as well as 284 specimens of <i>Megaselia</i> from the Los Angeles based BioSCAN (Biodiversity Science: City and Nature) project and ran them against libraries of one specimen of each species of the fauna from each site, respectively. Accuracy was about 52-67% for the first identification, with 86-95% of correct identifications in the top 5 candidates list. Expanding the library to include all identified specimens raised the likelihood that the first identification was correct to 93-96% of specimens, with 97-98% correct identifications in the top 5 list. Incorporating major body color (dark brown versus yellowish) to the identification system increased accuracy to 100% for the ZADBI specimens; other, easily-seen characters were used for problematic LA specimens. We suggest that a wing photograph be included in all <i>Megaselia</i> species descriptions to allow this semiautomation of identification based on morphology, and further that this system could provide a bridge to DNA-based species descriptions from old holotypes in collections.</p>
FIGURE 2. Fore wing. A. Vein 2 in Whartonstigma subgen. nov., a new subgenus of the genus Orthostigma Ratzeburg 1844 from Australasia (Hymenoptera: Braconidae: Alysiinae)
FIGURE 2. Fore wing. A. Vein 2-SR present [Orthostigma (Orthostigma) mandibulare (Tobias, 1962)]. B. Vein 2-SR absent [Orthostigma (Papuastigma) papuae sp. nov.].
Data from: The arrangement of lateral veins along the midvein of leaves is not related to leaf phyllotaxis
Positions of leaves along a stem usually adhere to a genetically determined, species-specific pattern known as a leaf phyllotaxis. We investigated whether the arrangement of lateral secondary veins along primary midveins adhered to a species-specific pattern that resembled an alternate or opposite phyllotaxis. We analyzed the venation of temperate dicotyledonous species from different taxonomic groups and chose 18 woody and 12 herbaceous species that have reticulated leaf venation. The arrangement of the lateral veins was neither alternate nor opposite for any of the species. Lateral vein arrangements were instead mixtures of symmetric and asymmetric patterns. Our results show that lateral vein arrangements are related neither to stem-level leaf phyllotaxis (alternate vs. opposite) nor to life form (woody vs. herbaceous). Our results are therefore generally consistent with the canalization hypothesis that the locations of lateral veins are not completely specified genetically prior to leaf formation.
Data from: Umbilical vein oxytocin for the treatment of retained placenta (Release Study): a double-blind, randomised controlled trial.
BACKGROUND: Retained placenta is associated with post-partum haemorrhage. Meta-analysis has suggested that umbilical injection of oxytocin could increase placental expulsion without the need for a surgeon or anaesthetic. We assessed the effect of high-dose umbilical vein oxytocin as a treatment for retained placenta. METHODS: In this double-blind, placebo-controlled trial, haemodynamically stable women with a retained placenta for more than 30 min were recruited from 13 sites in the UK, Uganda, and Pakistan. 577 women were randomly assigned by a computer-generated randomisation list stratified by centre to 30 mL saline containing either 50 IU oxytocin (n=292) or 5 mL water (n=285), which was injected into the placenta through an umbilical vein catheter. All trial participants, study workers, and data handlers were masked to individual allocations. The primary outcome was the need for manual removal of the placenta. Analysis was by intention to treat. This study is registered, number ISRCTN 13204258. FINDINGS: The primary outcome was recorded for all participants. We detected no difference between the groups in the need for manual removal of placenta (oxytocin 179/292 [61.3%] vs placebo 177/285 [62.1%]; relative risk 0.98, 95% CI 0.87-1.12; p=0.84). The need for manual removal was higher in the UK (overall 250/361 [69%]) than in Uganda (90/190 [47%]) or Pakistan (16/26 [62%]). Adverse events did not differ between the two groups. INTERPRETATION: Umbilical oxytocin has no clinically significant effect on the need for manual removal for women with retained placenta. FUNDING: WHO, WellBeing of Women, Pakistan Higher Education Commission.
FIGURE 18. Austroplebeia wings. Dotted lines indicate pigmented vein traces. Figs a–c in Australian and New Guinean Stingless Bees of the Genus Austroplebeia Moure (Hymenoptera: Apidae) — a revision
FIGURE 18. Austroplebeia wings. Dotted lines indicate pigmented vein traces. Figs a–c. Forewings, showing variation observed in the vestige of the first transverse cubital vein: a, A. magna sp. nov. forewing with a short vein vestige; b, Detail of an A. australis–Eastern Colour Morph forewing with a thickening of vein M at this position; c, Detail of an A. australis–Eastern Colour Morph forewing with a long vein vestige. Fig. d. Hindwing of A. magna sp. nov. Fig. e. Diagram of a forewing showing how the following measurements were made: (1) forewing length without tegula; (2) forewing width; (3) wing diagonal (Sakagami 1978); (4) 1st abscissa of M length; (5) 1st abscissa of Cu length. Figs a–d drawn to same scale: scale bar = 0.25 mm. Abbreviations: M—vein M; 1st R—first recurrent vein; 2nd Cu—second cubital cell; Ham—hamuli.
Grass veins are leaky pipes: Vessel widening in grass leaves explain variation in stomatal conductance and vessel diameter among species
<p>The widening of xylem vessels from tip-to-base of trees is an adaptation to minimize the hydraulic resistance of a long pathway. Given that parallel veins of monocot leaves do not branch hierarchically, vessels should also widen basipetally but, in addition to minimizing resistance, should also account for water volume lost to transpiration since they supply water to the lamina along their lengths, i.e. "leakiness".</p> <p>We measured photosynthesis, stomatal conductance, and vessel diameter at 5 locations along each leaf of 5 perennial grass species.</p> <p>We found that the rate of conduit widening in grass leaves was larger than the widening exponent required to minimize pathlength resistance (0.35 vs. ~0.22). Furthermore, variation in the widening exponent among species was positively correlated with maximal stomatal conductance (r<sup>2 </sup>= 0.20) and net CO<sub>2</sub> assimilation (r<sup>2</sup> = 0.45).</p> <p>These results suggest that faster rates of conduit widening (>0.22) were associated with higher rates of water loss. Taken together, our results show that the widening exponent is linked to plant function in grass leaves and that natural selection has favored parallel vein networks that are constructed to meet transpiration requirements while minimizing hydraulic resistance within grass blades.</p>
Molecular Cartography of candidate leaf vein patterning regulators in shoot apices of maize
<p>Molecular Cartography data generated using the platform proprietary of Resolve BioSciences GmbH. This dataset constitute the supporting information of the following manuscripts: "The WIP6 transcription factor <em>TOO MANY LATERALS</em> specifies vein type in C<sub>4</sub> and C<sub>3</sub> grass leaves" (Vlad et al. https://doi.org/10.1101/2023.12.20.572592), "Spatial transcriptomics reveals distinct lineage identities for major and minor vein initiation during maize leaf development" (Perico et al. https://doi.org/10.1101/2024.02.05.578898).</p> <p>The dataset is constituted of six samples and is structured as follows:</p> <p>1) Images.zip: contains Calcofluor White and DAPI .tiff images used for cell segmentation.</p> <p>2) Cell outlines.zip: contains the zip file of all segmented cells (ROIs) in all analysed samples. </p> <p>3) Raw data.zip: contains all raw data (in .txt format) of the spatial transcriptomics fluorescent signal.</p> <p>Files that refer to the same samples are labelled the same across all folders. The sample names are: E1B2, E1D2, S1A1, S1A2, S1B1, S1B2.</p>
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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.