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10,016 results for “Observation”
Observation of mHz-level cooperative Lamb shifts in an optical atomic clock
<p>We report on the direct observation of resonant electric dipole-dipole interactions in a cubic array of atoms in the many-excitation limit. The interactions, mediated by single-atom couplings to the shared electromagnetic vacuum, are shown to produce spatially-dependent cooperative Lamb shifts when spectroscopically interrogating the mHz-wide optical clock transition in strontium-87. We show that the ensemble-averaged shifts can be suppressed below the level of evaluated systematic uncertainties for state-of-the-art optical atomic clocks. Additionally, we demonstrate that excitation of the atomic dipoles near a Bragg angle can enhance these effects by nearly an order of magnitude compared to non-resonant geometries. Given the remarkable precision of frequency measurements and the high accuracy of the modeled response, our work demonstrates that such a clock is a novel platform for studies of the quantum many-body physics of spins with long-range interactions mediated by propagating photons.</p>
Prediction of Individual Autism Diagnostic Observation Schedule (ADOS) scores based on neural responses during live eye-to-eye contact
<p>Social difficulties are impactful in autism spectrum disorder (ASD), and links between these difficulties and underlying neural processes are active research questions. We present a multivariate classification method for neural data acquired from 36 participants during a live eye-to-eye contact task. Participants were either typically developed (TD) or diagnosed as ASD through gold-standard Autism Diagnostic Observation Schedule (ADOS) evaluation. We hypothesized multivariate classification could discriminate TD vs. ASD based on neural responses. Support vector machine (SVM) classification was able to discriminate between groups during the eye-contact interaction. In addition, it was found that underlying neural patterns contributing to binary classification also predicted measured ADOS scores with high correlation even though ADOS scores were not used for training. The correlation between observed and predicted ADOS scores was 0.72 (p < 0.002) for eye-to-eye contact. These findings suggest neural responses to live eye-to-eye contact are predictive of social symptomatology in ASD.</p>
Fortuitous Observations of Potential Stellar Relay Probe Positions with GBT - Results Data Table
<p>This record contains the data table produced as part of "Fortuitous Observations of Potential Stellar Relay Probe Positions with GBT" by Palumbo et al. </p>
Data from: GTC FOLLOW-UP OBSERVATIONS OF VERY METAL-POOR STAR CANDIDATES FROM DESI
<p>Data for plots in the paper. The dat folders include the spectra shown in Figures 1-2-3, and the file osiris/allende2023_desi_osiris_carbon.mrt gives the data points in Figure 4. The observed stellar spectra come from the Dark Energy Spectroscopic Instrument and the OSIRIS instrument on the 10.4-m Gran Telescopio Canarias. All data are in text files, in Machine Readable Table (MRT) format. See the included Readme.txt file for details.</p>
Tabela 1. Wykaz stanowisk badawczych i występujących na nich platanów klonolistnych z obserwacjami Corythucha ciliata / Table 1. List of research sites and London plane trees with Corythucha ciliata observations].
<p>Wykaz stanowisk badawczych i występujących na nich platanów klonolistnych z obserwacjami<em> Corythucha ciliata / </em><em>List of research sites and London plane trees with Corythucha ciliata observations</em>.</p>
High-speed video observations of needles evolving into negative leaders in a positive cloud-to-ground lightning flash
<p>The data supports the manuscript entitled “<strong>High-speed video observations of needles evolving into negative leaders in a positive cloud-to-ground lightning flash</strong>”. The high-speed video data files of the positive cloud-to-ground lightning (20200603_082539, denoted F20065) of *.cihx and *.avi can be opened by Photron Camera Control software (Photron Fastcam Viewer) that can be download from this link: https://photron.com/photron-support/</p> <p>In addition, MATLAB can open the *.mat file (electric field change data), and Microsoft Excel can open the *.xlsx file (Guangdong-Hong Kong-Macao Lightning Location data (20200603082523-20200603082556).</p> <p>The data can be used freely for scientific purposes with the appropriate citation.</p>
Precipitation reconstructions for Paris based on the observations by Louis Morin, 1665–1713 CE
<pre>This dataset includes Louis Morin's daily rainfall records from 1665--1713. More details can be found in the file.</pre>
The Observed Disdrometer Heavy Rainfall Period Datasets in East China during the Meiyu Season
<p>The attached file includes all the 1757 Parsivel disdrometer heavy rainfall periods (HRPs) in East China during the 2019-2022 Meiyu season. The files are the XXX.mat format and can be directly opened with MATLAB.</p>
Collocated model and observation datasets for the validation of the Copernicus Mediterranean Sea Waves Analysis and Forecast for the period 2018-2020.
<p>The collocated values are used for skill evaluation of the Mediterranean Sea Waves Analysis and Forecast system for a three-year-long period (Korres et al., 2022). The list of datasets includes:</p> <ol> <li>The collocated model (analysis) – buoy values for significant wave height Hs (Insitu_Hs.mat)</li> <li>The collocated model (analysis) – buoy values for spectral moments (0,2) wave period Tm (Insitu_Tm.mat)</li> <li>The collocated model (first – guess) – satellite values for significant wave height Hs (Satellite_Hs.mat)</li> <li>The collocated model – satellite values for wind speed U10 (Satellite_U10.mat)</li> </ol> <p>Each .mat file contains a header for the variables included. Collocations can be used to estimate standard quality metrics (e.g. scatter index, bias, root-mean-squared-difference). Procedures to produce these model-observation collocated datasets and determine the overall skill assessment are described in detail in Ravdas et al. (2018) and Oikonomou et al. (2022). The buoy (in-situ) measurements are obtained from the product INSITU_GLO_WAV_DISCRETE_MY_013_045 (EU Copernicus Marine Service Product, 2022a), and associated variables contain a quality flag (“time_qc”, “position_qc”, “buoy_Hs_qc”, “buoy_Tm_qc”) (de Alfonso et al., 2022a,b). In addition, the model first-guess significant wave height and the wind speed forcing (Hersbach et al., 2023) are collocated with available satellite observations (EU Copernicus Marine Service Product, 2022b) over the entire model domain.</p> <p>References</p> <p>de Alfonso, M., Manzano, F., and Gallardo, A. (2022a): EU Copernicus Marine Service Quality Information Document for the In Situ TAC Product, INSITU_GLO_WAV_DISCRETE_MY_013_045, Issue 5.0, Mercator Ocean International, <a href="https://catalogue.marine.copernicus.eu/documents/QUID/CMEMS-INS-QUID-013-045.pdf">https://catalogue.marine.copernicus.eu/documents/QUID/CMEMS-INS-QUID-013-045.pdf</a></p> <p>de Alfonso, M., Manzano, F., Gallardo, A., and In Situ TAC (2022b): EU Copernicus Marine Service Product User Manual for Multi-Year WAVE In Situ Product, INSITU_GLO_WAV_DISCRETE_MY_013_045, Issue 2.0, Mercator Ocean International, <a href="https://catalogue.marine.copernicus.eu/documents/PUM/CMEMS-INS-PUM-013-045.pdf">https://catalogue.marine.copernicus.eu/documents/PUM/CMEMS-INS-PUM-013-045.pdf</a></p> <p>EU Copernicus Marine Service Product (2022a): Multi-Year WAVE In Situ Product, Mercator Ocean International, [dataset], <a href="https://doi.org/10.17882/70345">https://doi.org/10.17882/70345</a></p> <p>EU Copernicus Marine Service Product (2022b): Global Ocean L 3 Significant Wave Height From Reprocessed Satellite Measurements, Mercator Ocean International, [dataset], <a href="https://doi.org/10.48670/moi-00176">https://doi.org/10.48670/moi-00176</a></p> <p>Hersbach, H., Bell, B., Berrisford, P., Biavati, G., Horányi, A., Muñoz Sabater, J., Nicolas, J., Peubey, C., Radu, R., Rozum, I., Schepers, D., Simmons, A., Soci, C., Dee, D., Thépaut, J-N. (2023): ERA5 hourly data on single levels from 1940 to present. Copernicus Climate Change Service (C3S) Climate Data Store (CDS), DOI: 10.24381/cds.adbb2d47 (Accessed on 26-09-2023)</p> <p>Korres, G., Oikonomou, C., Denaxa, D., & Sotiropoulou, M. (2022): Mediterranean Sea Waves Analysis and Forecast (CMEMS MED-Waves, MEDWAΜ4 system) (Version 1) [Data set]. Copernicus Monitoring Environment Marine Service (CMEMS). <a href="https://doi.org/10.25423/CMCC/MEDSEA_ANALYSISFORECAST_WAV_006_017_MEDWAM4">https://doi.org/10.25423/CMCC/MEDSEA_ANALYSISFORECAST_WAV_006_017_MEDWAM4</a></p> <p>Oikonomou, C., Denaxa D., and Korres, G. (2022): EU Copernicus Marine Service Quality Information Document for the Mediterranean Sea Waves Reanalysis, MEDSEA_ANALYSISFORECAST_WAV_006_017, Issue 2.2, Mercator Ocean International, <a href="https://catalogue.marine.copernicus.eu/documents/QUID/CMEMS-MED-QUID-006-017.pdf">https://catalogue.marine.copernicus.eu/documents/QUID/CMEMS-MED-QUID-006-017.pdf</a>.</p> <p>Ravdas, M., Zacharioudaki, A., and Korres, G. (2018): Implementation and validation of a new operational wave forecasting system of the Mediterranean Monitoring and Forecasting Centre in the framework of the Copernicus Marine Environment Monitoring Service, Nat. Hazards Earth Syst. Sci., 18, 2675–2695, <a href="https://doi.org/10.5194/nhess-18-2675-2018">https://doi.org/10.5194/nhess-18-2675-2018</a></p> <p> </p>
Figure 1 in Observations Of Novel Feeding Tactics In Guira Cuckoo Guira Guira (Aves: Cuculidae)
Figure 1. Mature larva of Brassolis sophorae.
Data for "Global observation gaps of peatland greenhouse gas balances: needs and obstacles"
<p>Data from literature review for the study "Global observation gaps of peatland greenhouse gas balances: needs and obstacles"</p>
Data for the publication "In Situ Observation of Room-Temperature Magnesium Metal Deposition on a NASICON/IL Hybrid Solid Electrolyte"
<p>Datasets are obtained from X-ray diffraction (XRD), Rietveld analysis, Scanning electron microscopy (SEM), Electrochemicla impedance spectroscopy (EIS), Nudged Elastic Band (NEB), Chronopotentiometry (CP), Linear sweep voltammetry (LSV), X-ray photoelectron spectroscopy (XPS), Energy-dispersive X-ray spectroscopy (EDS).</p> <p><strong>Abstract:</strong> Secondary batteries using multivalent cations as ionic charge carriers have attracted increasing attention in recent years due to the high theoretical energy density provided by multi-electron redox reactions. However, the high charge density of these cations inevitably leads to sluggish kinetics of ion migration at room temperature, which poses a challenge for the development of solid-state batteries using multivalent ions. Here, we prepared a magnesium ion conducting hybrid solid electrolyte (HSE) consisting of a new NASICON-structured material, Mg0.5Sn2(PO4)3, and a small amount of Mg ionic liquid. The HSE shows superior room-temperature ionic conductivity of 1.11 · 10−4 S cm−1 and an activation energy of 0.36 eV. Due to good compatibility of the HSE with the magnesium metal anode, symmetric MgǀHSE|Mg cells show stable Mg plating and stripping behavior at room temperature. Using in situ electrochemical scanning electron microscopy measurements the room temperature growth-induced fracture of the HSE was observed, giving unequivocal evidence for magnesium deposition. These results may serve as starting point for understanding the magnesium deposition mechanism on solid electrolyte in solid-state batteries.</p>
CHEOPS observations of 55 Cnc
<p>To demonstrate the spectral window shaping capabilities of the missing data multitaper power spectrum estimator, we used the timestamps from this set of 55 Cnc observations by CHEOPS (PI: B. Demory). The data file contains the timestamps [MJD], fluxes, and flux errors.</p>
K2 Campaign 2 observations of EPIC 203354381
<p>K2 Campaign 2 observations of the rapid rotator EPIC 203354381, 23 August 2014 to 10 November 2014. We downloaded the detrended light curve from the <a href="https://luger.dev/everest/catalog.html">EVEREST catalog</a> (Luger et al. 2016, AJ, 152, 100). This version excludes NaNs and 3<span class="math-tex">\(\sigma\)</span> flux outliers. In our paper <em>Optimal frequency-domain analysis for spacecraft time series: Introducing the missing-data multitaper power spectrum estimator, </em>we trimmed the first 50 observations in this data file before estimating the power spectrum; these observations record a stellar flare.</p>
Data sets for "On the detection of a solar radio burst event that occurred on 28 August 2022 and its effect on GNSS signals as observed by ionospheric scintillation monitors distributed over the American sector" by Wright et al.
<p>Copy of data described in 'On the detection of a solar radio burst event that occurred on 28 August 2022 and its effect on GNSS signals as observed by ionospheric scintillation monitors distributed over the American sector' by Wright et. al and to appear in the Journal of Space Weather and Space Climate (JSWSC), 2023.</p><p> </p>
Digital files in support of "Geodetic Observations of Tectonic Deformation in Alaska and western Canada: The EarthScope Revolution" by Julie Elliott, Jeffrey T. Freymueller, and Ronni Grapenthin.
<p>Digital files in support of a manuscript in revision entitled "Geodetic Observations of Tectonic Deformation in Alaska and western Canada: The EarthScope Revolution" by Julie Elliott, Jeffrey T. Freymueller, and Ronni Grapenthin.</p>
Pett Level Observation Post
A World War II Observation post for Toot Rock Artillery Battery at Pett Level, East Sussex, England. EDOBID: e07294 https://archaeologydataservice.ac.uk/archives/view/dob/ai_full_r.cfm?refno=9774 577 photos taken in April 2022 with a Sony a7R III and a DJI Mini 2 and processed in Reality Capture. Source: Objaverse 1.0 / Sketchfab
WW1 shelter room and observation position
First World War trench shelter room and observation position (type C) in base XXVIII:8 in [Krepost Sveaborg](https://en.wikipedia.org/wiki/Krepost_Sveaborg) land front defense line in Vallikallio, Espoo, Finland. The base was built in 1915 - 1918. More info: * [Location in Google Maps](https://goo.gl/maps/qUTMxKcYTpQXRxwT7) * [Wikipedia: Krepost Sveaborg](https://en.wikipedia.org/wiki/Krepost_Sveaborg) * [John Lagerstedt , Markku Saari: Krepost Sveaborg](http://www.novision.fi/viapori/eavaus.htm) * [Finnish Heritage Agency site info](https://www.kyppi.fi/to.aspx?id=112.1000007751) (only in finnish) Source: Objaverse 1.0 / Sketchfab
WW1 covered observation post, Helsinki, Finland
First World War covered observation post in [Krepost Sveaborg](https://en.wikipedia.org/wiki/Krepost_Sveaborg) land front defense line in base XVII:13 Länsi-Pakila, Helsinki, Finland. The base was built in 1915 - 1918. More info: * [Location in Google Maps](https://goo.gl/maps/pw9y6ZgtgNZXA1T1A) * [Wikipedia: Krepost Sveaborg](https://en.wikipedia.org/wiki/Krepost_Sveaborg) * [John Lagerstedt , Markku Saari: Krepost Sveaborg](http://www.novision.fi/viapori/eavaus.htm) * [Finnish Heritage Agency site info](https://www.kyppi.fi/to.aspx?id=112.1000013711) (only in finnish) Source: Objaverse 1.0 / Sketchfab
Data products associated with "Multi-year glaciological and meteorological observations on debris-covered Kennicott Glacier, Alaska, 2016 - 2023"
<p>Data for Petersen, E., R. Hock, M. Loso, W. Guo, C. Markovsky, R. Yang, H. Han, D. Shangguan, and S. Kang, “Multi-year glaciological and meteorological observations on debris-covered Kennicott Glacier, Alaska, 2016-2023,” Geoscience Data Journal, Submitted January 2025.</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.