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1,140 results for “TOPS”
Datasets of AOD and Top of Atmosphere solar spectra discussed in publication AMT-2023-105.
<p>The datasets represent Aerosol Optical Depth at selected wavelength bands from a field campaign at Izana, 6-22 September 2022, in the frame of the JRP project MAPP, Metrology for Aerosol Optical Properties 19ENV04.</p> <p>This data was obtained within the joint research project EMPIR 19ENV04 MAPP “Metrology for aerosol optical properties” which has been supported by the European Metrology Program for Innovation and Research (EMPIR) . The EMPIR is jointly funded by the EMPIR participating countries within EURAMET and the European Union.</p>
Raw video and pose estimation data of top view open field mouse behavior recordings of acute and chronic stress models
<p>This repository contains raw data for 411 different open field recordings of mice. these include top view raw video .mp4 files (Videos.zip) and the corresponding .csv pose estimation data (data.zip) obtained with DeepLabCut. The data is from multiple different experiments. The METADATA.csv or METADATA.xlsx files contain all grouping variables and help linking the pose estimation files (located in multiple subfolders of /data) to the video files. Visit https://github.com/ETHZ-INS/BehaviorFlow to find out more about how this data has be used by us.</p>
Raw video and pose estimation data of top view open field mouse behavior recordings after yohimbine injections
<p>This repository contains raw data for 32 different open field recordings of mice. these include top view raw video .mp4 files (Videos.zip) and the corresponding .csv pose estimation data (data.zip) obtained with DeepLabCut. The data is from a single yohimbine injection experiment at Roche, where animals were injected with saline, 1mg/kg,3mg/kg or 6mg/kg of yohimbine. The METADATA.csv or METADATA.xlsx files contain all grouping variables and help linking the pose estimation files (located in data/Yohimbine_Roche) to the video files. Visit https://github.com/ETHZ-INS/BehaviorFlow to find out more about how we have used this data</p>
Dataset: Periodic variation of mesoscale ultraviolet contrast at the cloud top of Venus
<p>Filename:<br> mean_A_283.txt : wavelength of 283 nm<br> mean_A_365.txt : wavelengths of 365 nm</p> <p>Description:<br> Empirical equigonal UV albedo of Venus as a function of the phase angle determined from Akatsuki UVI data.</p> <p>Format (text file): <br> 1st column: Phase angle (deg)<br> 2nd column: A:Mean albedo<br> 3rd column: SD:Standard deviation</p> <p> </p> <p>Filename:<br> period1_283nm.txt : Period 1, 283 nm<br> period1_365nm.txt : Period 1, 365 nm<br> period2_283nm.txt : Period 2, 283 nm<br> period2_365nm.txt : Period 2, 365 nm</p> <p>Description:<br> Time series of the standard deviation of mesoscale UV contrast and the mean brightness of Venus.</p> <p>Format (text file):<br> 1st column: Image file name<br> 2nd column: Elapsed time (h)<br> 3rd column: Phase angle (deg)<br> 4th column: Standard deviation (W/m2/str/m)<br> 5th column: Standard deviation in AM<br> 6th column: Standard deviation in PM<br> 7th column: Mean brightness (W/m2/str/m)<br> 8th column: Mean brightness in AM<br> 9th column: Mean brightness in PM</p> <p> </p> <p>Filename:<br> uvi_20160425_131340_283_l3b_v10.nc<br> uvi_20160425_151341_283_l3b_v10.nc<br> uvi_20160425_171339_283_l3b_v10.nc<br> uvi_20160506_101341_283_l3b_v10.nc<br> uvi_20160506_121340_283_l3b_v10.nc<br> uvi_20160506_141343_283_l3b_v10.nc<br> uvi_20160517_141339_283_l3b_v10.nc<br> uvi_20160517_161339_283_l3b_v10.nc</p> <p>Description:<br> 2.02-micrometer mapped data taken by the IR2 camera onboard Akatsuki in Level-3 netCDF format. The data have been corrected for the point-spread function, the flat-field pattern, and the detector temperature dependence by Sato et al. (2020, Icarus, 345, 113682, https://doi.org/10.1016/j.icarus.2020.113682).</p> <p>Format (binary file):<br> netCDF<br> The file names indicate the year, date and time of each observation.</p> <p> </p>
Diagramas da análise top-down de arquitetura da informação dos websites das bibliotecas das universidades públicas federais do sul do Brasil
<p><strong>Resumo: </strong>O objetivo deste trabalho é analisar as questões top-down de arquitetura da informação dos websites institucionais, propostas por Rosenfeld, Morville e Arango (2015), das bibliotecas universitárias das 11 universidades públicas federais da região sul do Brasil. Como resultados obtidos, destaca-se que, a maioria dos sites responde satisfatoriamente aos questionamentos, com destaque positivo para os sites da UFPR, UFRGS e da UFSC. Conclui-se que esta abordagem sistematiza a análise da arquitetura da informação e facilita o entendimento do observador, fornecendo subsídios para melhoria da arquitetura da informação dessas interfaces humano-computador.</p> <p><strong>Palavras-chave:</strong> Arquitetura da Informação. Experiência de Usuário. Biblioteca Universitária. Universidade Pública.</p>
Functional identity of dominant species in a predator community prevails over functional diversity in shaping the top-down control of herbivores
<ol> <li><span>Decline in species richness as well as changes in community evenness or functional diversity have been hypothesized to jointly affect ecosystem functioning. However, disentangling the relative effects of these changes in community structure is hard as these different aspects often covary with species richness in real-world ecosystems. In this study, we investigated the individual and interactive effects of functional diversity and community evenness of predators on the level of control of herbivorous prey. </span></li> <li><span>Using a highly-replicated mesocosm experiment, we crossed three levels of functional diversity of arthropod predators with two levels of community evenness while controlling for the effect of species richness. Using this experimental setting, we hypothesized that the effect size of functional diversity of predators depends on community evenness. We expected a positive effect of functional diversity of predators on top-down control at a high level of community evenness while we thought that species identity and their associated traits should drive most of the effect on top-down control at a low level of community evenness. </span></li> <li><span>Our results did not provide any evidence for an interaction between functional diversity and community evenness nor any beneficial effect of increased functional diversity overall on predation rates of herbivorous prey. In addition, our results revealed that species and functional identity drives most of the effects of predator community composition on top-down control of their prey in our study system. Assemblages composed of active hunters with low handling time and no starvation ability tended to have the highest impacts on prey biomass.</span></li> <li><span>By indicating that top-down control of herbivorous prey by arthropod predators is mainly driven by species and functional identity and not by functional diversity, our study provides insights into the consequences of ongoing species loss on ecosystem functioning. Future research should now explore the predictability of trophic interactions based on functional traits of predator and herbivorous prey to anticipate the consequences of changes in species composition on ecosystem functioning.</span></li> </ol>
Top-down vs. bottom-up: Grazing and upwelling regime alter patterns of primary productivity in a warm-temperate system
<p>Community structure is driven by biological interactions and physical processes that can vary across environmental gradients and spatial scales. Early ecological models focused on the role of resource availability (i.e. bottom-up effects), predicting that the strength of top-down control varied along gradients of primary productivity and that local species interactions determined community structure. However, the role of regional scale oceanographic processes in determining species interactions and community structure is now widely recognized, with bottom-up effects such as coastal upwelling driving regional scale patterns of resource availability. Such nutrient subsidies can significantly alter primary production and drive changes in algae-herbivore interactions in rocky intertidal habitats. However, despite the potential for upwelling to alter these interactions, studies investigating the effects of upwelling and grazing pressure are scarce, particularly for warm-temperate systems, and generally cover narrow geographical ranges. Using in-situ herbivore exclusion experiments replicated across multiple upwelling regimes, we investigated the effects of both grazing pressure and upwelling, as well as their interactions, on the sessile invertebrate community and primary production of macroalgal communities in a warm-temperate system. Invertebrate cover remained consistently low at upwelling sites and was reduced at non-upwelling sites when grazers were excluded. Macroalgal cover was greater at upwelling sites when grazers were excluded and there was a strong effect of succession throughout the experimental period. Grazing pressure was greater at upwelling sites, particularly during winter months. There was a non-significant trend towards greater grazing pressure on early than later successional stages. Our results show that the positive impacts of bottom-up effects of nutrient supply on algal production do not overwhelm top-down control in this warm-temperate system. We speculate that global increases in air and sea-surface temperatures in warm-temperate systems will promote top-down effects in upwelling regions by increasing herbivore metabolic and growth rates.</p>
Warming alters the top-down effect of a common mesopredator in an aquatic food web
<p class="MsoNormal"><span>Global warming is altering the composition and functioning of both terrestrial and aquatic ecosystems. Most research has focussed on direct effects of warming on species and their population dynamics, while less is known about indirect effects through species interactions. Trophic cascades are especially likely to influence the effects of warming given that trophic levels differ in their response to warming because of differences in metabolism and vital rates such as growth and reproduction. We investigated if the top-down effect of a common mesopredator, the threespine stickleback, alters the impact of warming on a Baltic Sea food web. We manipulated both temperature and the presence of stickleback in mesocosms, and found the stickleback to alter the impact of warming on lower trophic levels. This was through increased consumption of herbivores that exceeded the rate at which the herbivore population could grow under higher temperature, which in turn increased algae biomass compared to a scenario without stickleback, but not compared to conditions under normal temperature. Thus, the mesopredator increased the transfer of biomass to higher trophic levels of the food web when temperature was increased. This stresses the importance of considering the impact of warming on multiple trophic levels and their interactions. Failing to consider differences in responses among trophic levels and the impact this has on their interactions can result in faulty conclusions about the impact of warming on ecosystems.</span></p>
Data from: Numerical top-down effects on red deer (Cervus elaphus) are mainly shaped by humans rather than large carnivores across Europe
<p>Terrestrial ecosystems are shaped by interacting top-down and bottom-up processes, with the magnitude of top-down control by large carnivores largely depending on environmental productivity. While carnivore-induced numerical effects on ungulate prey populations have been demonstrated in large, relatively undisturbed ecosystems, whether large carnivores can play a similar role in more human-dominated systems is a clear knowledge gap. As humans influence both predator and prey in a variety of ways, the ecological impacts of large carnivores can be largely modified. We quantified the interactive effects of human activities and large carnivore presence on red deer (<em>Cervus elaphus</em>) population density and how their impacts interacted and varied with environmental productivity</p> <p>Data on red deer density were collected based on a literature survey encompassing 492 study sites across 28 European countries. Variation in density across study sites was analysed using a generalised additive model in which productivity, carnivore presence (grey wolf, European lynx, Brown bear), human activities (hunting, intensity of human land-use activity), site protection status and climatic variables served as predictors. </p> <p>The results showed that a reduction in deer density only occurred when wolf, lynx and bear co-occurred within the same site. In the absence of large carnivores, red deer density varied along a productivity gradient without a clear pattern. Although a linear relationship with productivity in the presence of all three large carnivore species was found, this was not statistically significant. Moreover, hunting by humans had a stronger effect than the presence of all large carnivores in reducing red deer density and red deer density increased with increasing intensity of human land-use, with stronger large carnivore effects (all three carnivore species present) at sites with low human land-use activities. </p> <p><em>Synthesis and applications</em>: This study provides evidence for the dominant role played by humans (i.e. hunting, land-use activities) relative to large carnivores in reducing red deer density across European human-dominated landscapes. These findings suggest that when we would like large carnivores to exert numeric effects, we should focus on minimizing human impacts to allow the ecological impacts of large carnivores on ecosystem functioning.</p>
#5 - "Take it From the Top: Latin Rock" House
Day #5 of my Everyday a Scan series! This week, I'll be concentrating on the many different districts of San Fransisco, CA. This incredible house was captured in the Mission district of San Francisco, at the intersection of York St. and 25th. This entire neighborhood is filled with Murals left and right. Some on people's garage doors, some on the entire side of the building, and in this case, the entire house. This mural was done by a group called Precita Eyes Muralists, directed by Max Marttila and Fred Alvarado in collaboration with the Urban Youth Arts Program. Make sure you sound is turned out, the audio of the space really puts things into context. Gear: * Sony a7rii * DJI Mavic * iPhone 7 (audio) Source: Objaverse 1.0 / Sketchfab
Main Door Top
Photo realistic Detailing above a a Main Front Door 100K triangles Reality Capture. Higher reslolution textures could be possible along with higher density triangle mesh. Source: Objaverse 1.0 / Sketchfab
Victorian Counter Top
Varnished wood counter with engraved front and drawes, ornate legs and marbled countertop. Source: Objaverse 1.0 / Sketchfab
Top of Door and windows
Photo realistic Top of Door and windows. 100K triangles Reality Capture. Higher reslolution textures could be possible along with higher density triangle mesh. Some errors are present. If needed for large project, I can complete data capture, for a fee :-) Source: Objaverse 1.0 / Sketchfab
Ginger Beer Bottle Top
A piece of a ginger beer bottle top found on the Thames foreshore at Rotherhithe (near Hornstairs). Date: 19th Century. Identified by Alan Murphy (<a href="https://twitter.com/Rothersman">@Rothersman</a>). Photos taken in February 2020 with a Sony a6000 and processed in Metashape. I have a PLA permit to search the Thames foreshore. Source: Objaverse 1.0 / Sketchfab
Six Months Efficacy and Safety of Aliskiren Therapy on Top of Standard Therapy, on Morbidity and Mortality in Patients With Acute Decompensated Heart Failure
ClinicalTrials.gov study NCT00894387. IPD Sharing: Not stated. Countries: 24. Publications: 5.
Evaluation of Alirocumab Versus Ezetimibe on Top of Statin in Asia in High Cardiovascular Risk Patients With Hypercholesterolemia
ClinicalTrials.gov study NCT02715726. IPD Sharing: Not stated. Countries: 3. Publications: 1.
Efficacy and Safety of Lixisenatide Versus Placebo on Top of Basal Insulin and/or Oral Antidiabetic Treatment in Older Type 2 Diabetic Patients
ClinicalTrials.gov study NCT01798706. IPD Sharing: Not stated. Countries: 13. Publications: 2.
TOP Implementation Project
ClinicalTrials.gov study NCT02737098. IPD Sharing: NO. Countries: 1. Publications: 2.
Evaluation of Sarilumab (SAR153191/REGN88) on Top of Methotrexate in Rheumatoid Arthritis Patients
ClinicalTrials.gov study NCT01061736. IPD Sharing: Not stated. Countries: 36. Publications: 12.
Causal Role of Top-Down Theta Oscillations in Prioritization
ClinicalTrials.gov study NCT06252532. IPD Sharing: YES. Countries: 1. Publications: 2.
ScienceDex guides
Understand access before you commit
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.