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300 results for “Echo”
Data for: Echoes of ancient introgression punctuate stable genomic lineages in the evolution of figs
<p class="MsoNormal"><span>Studies investigating the evolution of flowering plants have long focused on isolating mechanisms such as pollinator specificity. Some recent studies have proposed a role for introgressive hybridization between species, recognizing that isolating processes such as pollinator specialization may not be complete barriers to hybridization. Occasional hybridization may therefore lead to distinct yet reproductively connected lineages.</span></p> <p class="MsoNormal"><span>We investigate the balance between introgression and reproductive isolation in a diverse clade using a densely sampled phylogenomic study of fig trees (<em>Ficus</em>, Moraceae). Co-diversification with specialized pollinating wasps (Agaonidae) is recognized as a major engine of fig diversity, leading to about 850 species. Nevertheless, some studies have focused on the importance of hybridization in <em>Ficus</em>, highlighting the consequences of pollinator sharing. Here we employ dense taxon sampling (520 species) throughout Moraceae and 1,858 loci to investigate phylogenetic relationships and the prevalence of introgression among species throughout the history of <em>Ficus</em>.</span></p> <p class="MsoNormal"><span>We present a well-resolved phylogenomic backbone for <em>Ficus</em>, providing a solid foundation for an updated classification. Our results paint a picture of phylogenetically stable evolution within lineages punctuated by occasional local introgression events likely mediated by local pollinator sharing, illustrated by clear cases of cytoplasmic introgression that have been nearly drowned out of the nuclear genome through subsequent lineage fidelity. The phylogenetic history of figs thus highlights that while hybridization is an important process in plant evolution, the mere ability of species to hybridize locally does not necessarily translate into ongoing introgression between distant lineages, particularly in the presence of obligate plant-pollinator relationships.</span></p>
Phantom measurement data for 'Myelin water imaging at 0.55 T using a multi-gradient-echo sequence'
<p>This dataset contains the phantom mGRE measurement data used in the submitted article Schäper et al. 'Myelin water imaging at 0.55 T using a multi-gradient-echo sequence'.<br> The acquisitions were done with a 0.55 T MRI system (Magnetom Free.Max; Siemens Healthcare, Erlangen, Germany) using a 12 channel head coil and a 3 T MRI system (Magnetom Prisma; Siemens Healthcare, Erlangen, Germany) using a 20 channel head coil. For further measurement details, please refer to the mentioned original article.</p> <p> </p>
HPV Vaccine Communication ECHO for Primary Care Clinics
ClinicalTrials.gov study NCT04587167. IPD Sharing: NO. Countries: 1. Publications: 1.
Point of Care Ultrasound Use by General Practitioners in France (Echo-MG)
ClinicalTrials.gov study NCT04583670. IPD Sharing: YES. Countries: 1. Publications: 27.
Efficacy of Optison Echo Contrast to Detect Thrombus in Left Atrial Appendage
ClinicalTrials.gov study NCT01721447. IPD Sharing: Not stated. Countries: 1. Publications: 4.
COVID-19 Project ECHO in Nursing Homes
ClinicalTrials.gov study NCT04499391. IPD Sharing: NO. Countries: 1. Publications: 2.
Atrial Fibrillation (AF) and Electrocardiogram (EKG) Interpretation Project ECHO
ClinicalTrials.gov study NCT05890274. IPD Sharing: YES. Countries: 1. Publications: 3.
Echocardiographic Right Ventricular Evaluation in Assessment of ARDS Lung Recruitment (ECHO-REVEAL)
ClinicalTrials.gov study NCT06812949. IPD Sharing: NO. Countries: 2. Publications: 9.
A Study of Epacadostat (INCB024360) in Combination With Durvalumab (MEDI4736) in Subjects With Selected Advanced Solid Tumors (ECHO-203)
ClinicalTrials.gov study NCT02318277. IPD Sharing: Not stated. Countries: 1. Publications: 1.
Intramuscular Temperature on the Echo-textural Characteristics
ClinicalTrials.gov study NCT06145646. IPD Sharing: NO. Countries: 1. Publications: 6.
A Phase 3 Study of Pembrolizumab + Epacadostat or Placebo in Subjects With Unresectable or Metastatic Melanoma (Keynote-252 / ECHO-301)
ClinicalTrials.gov study NCT02752074. IPD Sharing: NO. Countries: 23. Publications: 1.
MRI Assessing Clinical Usability of STrategically Acquired Gradient Echo on Human Participants
ClinicalTrials.gov study NCT04292301. IPD Sharing: NO. Countries: 1. Publications: 3.
Trial of Ultrasound Guided Femoral Nerve Block on Isolated Femur Fracture Using Echo Friendly Needles
ClinicalTrials.gov study NCT02046317. IPD Sharing: Not stated. Countries: 1. Publications: 16.
Interest of Hypnosis on Pain Management During a Guided Echo Infiltration of the Hand
ClinicalTrials.gov study NCT04328623. IPD Sharing: NO. Countries: 1. Publications: 1.
Data From: Tactile Echoes: Multisensory Augmented Reality for the Hand
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Data from: Evaluating the target‐tracking performance of scanning avian radars by augmenting data with simulated echoes
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Data for: Attributes of CloudSat identified echo objects
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Data and code from: Echoes of the past: Long-term climate stability shapes functional and phylogenetic diversity in Euro-Mediterranean forests
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Data for: Echoes of ancient introgression punctuate stable genomic lineages in the evolution of figs
Open the record for dataset details and reuse information.
The long-range echo scene of the sperm whale biosonar
<p>Sperm whales use their gigantic nose to produce the most powerful sounds in the animal kingdom, presumably to echolocate deep-sea prey at long ranges and possibly to debilitate prey. To test these hypotheses, we deployed sound recording tags (DTAG-4) on the tip of the nose of three sperm whales. One of these recordings yielded over 6000 echo streams from organisms detected up to 144 m ahead of the whale, supporting a long-range prey detection function of the sperm whale biosonar. The whale navigated this complex acoustic scene by maintaining a stable, long-range acoustic gaze suggesting continual resource evaluation. Less than 10% of the echoic organisms recorded by the tag were targeted for capture and only 18% of the buzzes were emitted within the 50 m depth interval of maximum organism encounter rate, demonstrating echo guided prey selection. Buzzes were initiated >20 m from the prey, showing that sperm whales do not debilitate their prey with sound, but trade echo levels for reduced forward masking and rapid updates on prey location in keeping with the lower manoeuvrability of these large predators. We conclude that the powerful biosonar of sperm whales enables long-range echolocation and selection of prey, but not acoustic debilitation.</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)
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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.