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1,092 results for “The Sun”
Raw data for the article: A Cryptochrome adopts distinct moon- and sunlight states and functions as sun- versus moonlight interpreter in monthly oscillator entrainment
<p>The moon's monthly cycle synchronizes reproduction in countless marine organisms. The mass-spawning bristle worm Platynereis dumerilii uses an endogenous monthly oscillator to phase reproduction to specific days. Classical work showed that this oscillator is set by full moon. But how do organisms recognize such a specific moon phase? We uncover that the light receptor L-Cryptochrome (L-Cry) is able to discriminate between different moonlight durations, as well as between sun- and moonlight. Consistent with L-Cry's function as light valence interpreter, its genetic loss leads to a faster re-entrainment under artificially strong nocturnal light. This suggests that L-Cry blocks "wrong" light from impacting on the monthly oscillator. A biochemical characterization of purified L-Cry protein, exposed to naturalistic sun- or moonlight, reveals the formation of distinct sun- and moonlight states characterized by different photoreduction- and recovery kinetics of L-Cry's co-factor Flavin Adenine Dinucleotide. In vivo, L-Cry's sun- versus moonlight states correlate with distinct sub-cellular localizations, indicating different signalling. In contrast, r-Opsin1, the most abundant ocular opsin, is not required for monthly oscillator entrainment. Our work reveals a new concept for correct moonlight interpretation involving a "valence interpreter" that provides entraining photoreceptor(s) with light source and moon phase information. These findings advance our mechanistic understanding of a fundamental biological phenomenon: moon-controlled monthly timing. Such level of understanding is also an essential prerequisite to tackle anthropogenic threats on marine ecology.</p>
AD ASTRA project - WP4 Characterization of Interconnects extracted from operated SUN stacks
<p>Report on the complete investigation performed on interconnects extracted from SOFC stacks operated from 5'000 to 20'000 hours</p>
Transcriptional response of mushrooms to artificial sun exposure
<p>Climate change causes increased tree mortality leading to canopy loss and thus sun-exposed forest floors. Sun exposure creates extreme temperatures and radiation, with potentially more drastic effects on forest organisms than the current increase in mean temperature. Such conditions might potentially negatively affect the maturation of mushrooms of forest fungi. A failure of reaching maturation would mean no sexual spore release and, thus, entail a loss of genetic diversity. However, we currently have a limited understanding of the quality and quantity of mushroom-specific molecular responses caused by sun exposure. Thus, to understand the short-term responses towards enhanced sun exposure, we exposed mushrooms of the wood-inhabiting forest species <i>Lentinula edodes, </i>while still attached to their mycelium and substrate, to artificial solar light (ca. 30 °C and 100.000 lux) for 5, 30, and 60 minutes. We found significant differentially expressed genes at 30 and 60 minutes. Eukaryotic Orthologous Groups (KOG) class enrichment pointed to defense mechanisms. The 20 most significant differentially expressed genes showed the expression of heat-shock proteins, an important family of proteins under heat stress. Although preliminary, our results suggest mushroom-specific molecular responses to tolerate enhanced sun exposure as expected under climate change. Whether mushroom-specific molecular responses are able to maintain fungal fitness under opening forest canopies remains to be tested.</p>
Selected boulders at Copernicus central peak from L. Sun and P. Lucey Lunar boulder study work
<p>This file contains the location of 54 boulders and soils on Copernicus central peak that were studied by Sun L. and Lucey P. G. in their lunar boulder study paper. This file can be uploaded to the LROC Quickmap website (https://quickmap.lroc.asu.edu/) for checking the location of each boulder and their nearby soils.</p>
Midnight Sun to Polar Night: A model of seasonal light in the Barents Sea - Supplementary Data
<p><strong>Supplementary Data</strong></p> <p>Midnight Sun to Polar Night: A model of seasonal light in the Barents Sea. Connan-McGinty, S., Banas, N.S., Berge, J., Cottier, F., Grant, S., Johnsen, G., Kopec, T.P., Porter, M., McKee, D. (2022).</p> <p>All data and Python code required to re-create figures from the above manuscript.</p>
Gate of the sun, Tiwanaku
Model created from the video by Brien Foestrer : https://www.youtube.com/watch?v=1TGTcbL7OEM Source: Objaverse 1.0 / Sketchfab
Sasheen- Chapel at Old Sun Residential School
Exhibit design - Sasheen Wright This exhibit was produced as part of MIHS 250 held at Old Sun Community College. Source: Objaverse 1.0 / Sketchfab
Fig.6 in The Experimental Data On Sun-Basking Activity Of European Pond Turtle Emys Orbicularis In Natural Climate In Latvia: Dynamics And Correlation With The Meteorological Factors
Fig.6. Daily dynamics of sun-basking activity of Emys orbicularis.
Fig.1 in The Experimental Data On Sun-Basking Activity Of European Pond Turtle Emys Orbicularis In Natural Climate In Latvia: Dynamics And Correlation With The Meteorological Factors
Fig.1. The schema of the experimental out-door terrarium.
Fig. 2 in Fig. 1 in Tripedalia maipoensis Sun & Tsui & Wong & Cheung & Ng & Or & Qiu 2023, sp. nov.
Fig. 2. Photo of Koroni beach towards southwest (Photo: Dimitris Margaritoulis/ ARCHELON).
X-ray Emission of Nearby Low-mass and Sun-like Stars with Directly Imageable Habitable Zones: X-ray Spectra and Light Curves
<p>This repository contains the X-ray light curves extracted from the XMM-Newton and Chandra observations and the best-fit X-ray spectral models (with and without emission lines) from all stars detected at high significance in Binder et al. (2024), ApJS, ..., ...</p> <p>Description of Files:</p> <h3>LightCurves.zip</h3> <p>Summary: Light curve files (327) for all stars detected at high significance; in FITS (BinTableHDU) format with 7-14 extensions. The following types of data are included:</p> <ul> <li>"*_source.lc" : EPIC/PN source light curves of stars detected with more than ~500 net counts in an XMM-Newton observation</li> <li>"*_bkg.lc" : EPIC/PN background light curves of stars detected with more than ~500 net counts in an XMM-Newton observation</li> <li>"*_sub_lc.fits" : Background-subtracted light curves of stars detected with more than ~50 net counts in a Chandra observation</li> </ul> <h3>Spectra.zip</h3> <p>Summary: Spectra (152) for all stars detected at high significance (with >500 net counts in Chandra observations and >2000 net counts in XMM-Newton observations) in ASCII (ECSV format). We provide both the continuum spectra and spectra containing line emission. For stars that exhibit X-ray count rate variability, we provide spectra for specific variability types (see Binder et al. 2024 for details). The following types of data are included:</p> <ul> <li>"*_continuum.dat" : Continuum-only best-fit spectra</li> <li>"*_lines.dat" : Best-fit spectra containing line emission</li> </ul>
Data from: Two ways to display: male hummingbirds show different color-display tactics based on sun orientation
Animals exhibit a diversity of ornaments and courtship behaviors, which often co-occur and are used for communication. The sensory drive hypothesis states that these traits evolved and vary due to interactions with each other, the environment, and signal receiver. However, interactions between colorful ornaments and courtship behaviors, specifically in relation to environmental variation, remain poorly understood. We studied male iridescent plumage (gorgets), display behavior, and sun orientation during courtship flights (shuttle displays) in broad-tailed hummingbirds (Selasphorus platycercus), to understand how these traits interact in both space and time to produce the perceived coloration of males. We also tested how gorget coloration varies among males based on their plumage, behavioral, and morphological characteristics. In contrast with previous work on other animals, we found that displaying males did not directionally face the sun, but instead displayed on a continuum of solar orientation angles. The gorgets of males who tended to face the sun during their displays appeared flashier (i.e. exhibited greater color/brightness changes), brighter, and more colorful, whereas the gorgets of males who tended to not face the sun were more consistently reflective (i.e. little color change) and had greater UV reflectance. We found that males who produced consistent colors had larger gorgets, whereas males with flashier gorgets were better able to maintain their angles of orientation towards the female. Our study illustrates how visual traits interact in complex ways with each other and the environment and how males of the same species can use multiple tactics to dynamically display their coloration.
Imprint of planet formation in the deep interior of the Sun
<p>In protoplanetary disks, the growth and inward drift of dust lead to the generation of a temporal ``pebble wave'' of increased metallicity. This phase must be followed by a phase in which the exhaustion of the pebbles in the disk and the formation of planets lead to the accretion of metal-poor gas. At the same time, disk winds may lead to the selective removal of hydrogen and helium from the disk. Hence, stars grow by accreting gas that has an evolving composition. In this work, we investigated how the formation of the Solar System may have affected the composition and structure of the Sun, and whether it plays any role in solving the so-called solar abundance problem, that is, the fact that standard models with up-to-date lower-metallicity abundances reproduce helioseismic constraints significantly more poorly than those with old higher-metallicity abundances. We simulated the evolution of the Sun from the protostellar phase to the present age and attempted to reproduce spectroscopic and helioseismic constraints. We performed chi-squared tests to optimize our input parameters, which we extended by adding secondary parameters. These additional parameters accounted for the variations in the composition of the accreted material and an increase in the opacities. We confirmed that, for realistic models, planet formation occurs when the solar convective zone is still massive; thus, the overall changes due to planet formation are too small to significantly improve the chi-square fits. We found that solar models with up-to-date abundances require an opacity increase of 12% to 18% centered at T = 10^6.4 K to reproduce the available observational constraints. This is slightly higher than, but is qualitatively in good agreement with, recent measurements of higher iron opacities. These models result in better fits to the observations than those using old abundances; therefore, they are a promising solution to the solar abundance problem. Using these improved models, we found that planet formation processes leave a small imprint in the solar core, whose metallicity is enhanced by up to 5%. This result can be tested by accurately measuring the solar neutrino flux. In the improved models, the protosolar molecular cloud core is characterized by a primordial metallicity in the range Zproto = 0.0127-0.0157 and a helium mass fraction in the range Yproto = 0.268-0.274.</p>
Galactic cosmic ray fluxes for a number of nearby Sun-like stellar systems
<p>This data set corresponds to the simulation data presented in the article "Charting nearby stellar systems: The intensity of Galactic cosmic rays for a sample of solar-type stars" (Rodgers-Lee, Vidotto & Mesquita, MNRAS, 2021). Details of the stellar wind and cosmic ray model used for the simulations are available in the article.</p> <p>The data consists of the differential intensity of Galactic cosmic rays as a function of cosmic ray kinetic energy at different orbital distances from the star. The data is given for a number of different stellar systems. The first line gives the column headings.</p> <p>File names are formatted as "gcr_data_XXX.dat" where "XXX" corresponds to the name of the star considered. The simulation details can be found in Tables 1 and 2 of the article.</p>
02. Sun, Venus [Milky way Planets]
<p>02. Sun, Venus [Milky way Planets]</p> <p>In this video, visualization of Sun and Venus is carried out; various positions of Sun and Venus in the space.</p>
Radiosonde and sun photometer data set
<p>Radiosonde and sun photometer data set used in the paper "Precipitable water vapor retrievals using a ground-based infrared sky camera in subtropical South America" - Atmospheric Measurement Techniques, by Hack et al. 2023.</p>
Table 3 for the Study: "Correlation Study: Triggering and Magnitude of Earthquakes in Italy (≥M4.3) in Relation to the Positions and Gravitational Forces of the Sun, Moon, and Planets Relative to Earth."
<p><strong>Study of σFR gravitational forces exerted by the angular distances of all 9 S.S. celestial bodies toward Earth: L'Aquila Earthquake, 06.04.2009, Italy, M6.1 for Section 2.9.</strong></p><p>In case of display problems or missing data, the file <a href="https://zenodo.org/api/files/30eebe1b-d3a1-406a-975c-23ad8abe143f/Table_3_FR_L'Aquila_2009.xlsx?versionId=c778a73b-60c6-4504-a178-8edb1471e98c">Table_3_FR_L'Aquila_2009.xlsx</a> on Drive available for consultation is this one: <a href="https://docs.google.com/spreadsheets/d/1QteARypgGETNkbLB_O0VNWfmrYa0saFWvX0z1EacDEo/edit?usp=sharing">https://docs.google.com/spreadsheets/d/1QteARypgGETNkbLB_O0VNWfmrYa0saFWvX0z1EacDEo/edit?usp=sharing</a></p><p>The URL of the Calculation Excel sheet that allows calculation of the resulting gravitational force σFR in the month of the 2009 L'Aquila earthquake, M6.1 (n. 85), in the study <i>"</i>Correlation Study: Triggering and Magnitude of Earthquakes in Italy (≥M4.3) in Relation to the Positions and Gravitational Forces of the Sun, Moon, and Planets Relative to Earth<i>", </i>Section 2.9.</p>
Table 8 for the Study: "Observation of correlation between earthquake triggering of M>4.3 and specific Sun-Moon-Planets positions in the Solar System, from 1600 in Italy."
<p><strong>Graphs of the data distributions, with the R<sup>2</sup> regression values of σFR and the corresponding functions.</strong></p> <p>In case of display problems or missing data, the file <a href="https://zenodo.org/api/files/305630bd-70bd-4347-99eb-bfd6fb3af726/Table%208_SFR_distributions_curves.xlsx">Table 8_SFR_distributions_curves.xlsx</a> on Drive available for consultation is this one: <a href="https://docs.google.com/spreadsheets/d/17UGHZlvZ2N-g6TOzgqpIe248_IitBmka8DbGWsv-lKQ/edit?usp=sharing">https://docs.google.com/spreadsheets/d/17UGHZlvZ2N-g6TOzgqpIe248_IitBmka8DbGWsv-lKQ/edit?usp=sharing</a> </p> <p>URL of the plots of the data distributions, with the <strong>R<sup>2</sup></strong> regression values of σFR at the time of the triggering of the 200 earthquakes analyzed in the paper <em>"Observation of correlation between earthquake triggering of M>4.3 and specific Sun-Moon-Planets positions in the Solar System, from 1600 in Italy", paragraph </em><strong>3.02.</strong></p>
Table 4 for the Study: "Observation of correlation between earthquake triggering of M>4.3 and specific Sun-Moon-Planets positions in the Solar System, from 1600 in Italy."
<p><strong>Video explaining the determination of the Resulting Gravitational Force sigma for the 2009 L'Aquila earthquake.</strong></p> <p>For subtitles in English: <a href="https://youtu.be/-OVk2r8U8QA?t=563">https://youtu.be/-OVk2r8U8QA?t=563</a> --> URL of the video explaining the determination of the Resulting Gravitational Force sigma for the 2009 L'Aquila earthquake, for the article "Correlation observation between the triggering of M>4.3 earthquakes and specific Sun-Moon-Planet positions in the Solar System since 1600 in Italy" , SUBTITLES IN EN, paragraph 2.16.</p>
Velocity and acceleration for the positions of the sun meridian declination, according to the geometric model
<p>The data set gives the sun meridian declination for every day of the year, according to the geometric model for the sun declination. In the next columns, the velocity and acceleration of the sun meridian declination is also assessed. And the last column assesses the relative concentration of solar resources available per minute of latitude (arcmin), which is obtained by giving 100% to the 365 rotations of the planet, considering the velocity of the sun meridian declination.</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.