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952 results for “Noise”
Various types of subway station noise monitoring data
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Trait mediated effects of anthropogenic noise on bird behavior and fitness
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Noise pollution and artificial light at night alter selection pressures on sexual signals in an urban adapter
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The impact of vehicular noise on the effectiveness of acoustic indices
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Ribosome demand links transcriptional bursts to protein expression noise
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Natural noise affects conspecific signal detection and territorial defense behaviors in songbirds
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Data for: Small reductions in cargo vessel speed dramatically reduce noise impacts to marine mammals
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Mitigating flicker noise in high-precision photometry. I - Characterization of the noise structure, impact on the inferred transit parameters, and predictions for CHEOPS observations
<p>This repository contains the publicly available artificial exoplanet transit light curves that has been generated in HMI observations.</p> <p>Descriptions of the data are encapsulated in the READme.dat file. For further details, please report to Sec. 3 of the paper (arXiV link: <a href="https://arxiv.org/abs/2003.07707">https://arxiv.org/abs/2003.07707</a>).</p> <p>If you find these synthetic data useful in your own research please cite the Sulis. et al., (2020) paper.</p> <p> </p> <p> </p> <p> </p> <p> </p>
A Skeptic's Guide to Open Science: Steven Novella on tackling biases, publication noise, and pseudoscience
<p><strong>Episode Summary: </strong></p> <p>Our guest this week is the influential skeptic Professor Steven Novella who is the producer and co-host of the very successful podcast A Skeptic's Guide to the Universe and author of a book by the same name. Novella is also an American clinical neurologist and assistant professor at Yale University School of Medicine. In this episode he talks to us about his views on how best to promote Open Science in medicine, the challenges of creating a new publication method, and the importance of communicating science to the public. </p> <p><strong>Links:</strong></p> <p><a href="https://www.theskepticsguide.org/podcasts">A Skeptic's Guide to the Universe Podcast</a></p> <p><a href="https://www.theskepticsguide.org/our-book">A Skeptic's Guide to the Universe: How to Know What’s Really Real in a World Increasingly Full of Fake Book</a></p> <p><em>Steven Novella:</em></p> <ul> <li><a href="https://twitter.com/stevennovella?lang=en">Twitter</a></li> <li><a href="https://medicine.yale.edu/neurology/people/steven_novella.profile">Yale Profile</a></li> </ul> <p><strong>Episode Quotes:</strong></p> <p>"They are uncomfortable with anything that is in and of itself pseudoscience because they think it taints them"</p> <p>"It doesn't really matter what you say your priorities are, your priorities are whatever it is that you promote people for"</p> <p>"We have an opportunity to completely rethink how we publish science"</p>
Is the red and bule colour in the picture are noise?If not then in this photo threre are picture of Black hole
<p>I randomly capturing the sky picture on north side of the sky to take the picture of saptarishimandal. I get this surprising picture like CMB. If ,this is not noise then there sre the picture of black hole ,the objects in the picture whose centre are deep black and sorrounded by bright light.</p> <p> </p>
Noise study data for: Mechanisms of root-reinforcement in soils: an experimental methodology using four-dimensional X-ray computed tomography and digital volume correlation
<p>This dataset contains noise study data used in the paper: Mechanisms of root-reinforcement in soils: an experimental methodology using four-dimensional X-ray computed tomography and digital volume correlation. These include raw CT scans and processed digital volume correlation data.</p> <p>This dataset is part of another dataset which covers other aspects of the paper DOI: <a href="http://www.doi.org/10.5281/zenodo.3352268">10.5281/zenodo.3352268</a></p> <p>The structure of the dataset is as follows:</p> <ul> <li>Noise study CT raw volumes are contained in a zip file. There are four raw files corresponding to the four noise study steps. These files are 8-bit unsigned, dimensions are 1800 x 1800 x 1400 pixels. A txt file giving more details to the data is included. <ul> <li><strong>CT_Raw_data_Noise_Scans.zip</strong></li> </ul> </li> <li>Metadata files generated for each scan given details of scan parameters are found in the zip file: <ul> <li><strong>CT_Scan_Metadata.zip</strong></li> </ul> </li> <li>Tabulated digital volume data for the noise study scans are contained in the zip file. Tabulated data for each subset size is included in subfolders. A .txt file explains the structure of the tab separated .dat files, i.e. what each column of data represents, and what CT scan each of the four .dat files relate to. <ul> <li><strong>DVC_Noise_Study_Data.zip</strong></li> </ul> </li> </ul> <p> </p> <p> </p>
Data from: Vessel noise levels drive behavioural responses of humpback whales with implications for whale-watching
<p><span>Disturbance from whale-watching can cause significant behavioural changes with fitness consequences for targeted whale populations. However, the sensory stimuli triggering these responses are unknown, preventing effective mitigation. Here, we test the hypothesis that vessel noise level is a driver of disturbance, using humpback whales (<i>Megaptera novaeangliae</i>) as a model species. We conducted controlled exposure experiments (<i>n</i>= 42) on resting mother-calf pairs on a resting ground off Australia, by simulating whale-watch scenarios with a research vessel (range 100 m, speed 1.5 knts) playing back vessel noise at control/low (124/148 dB), medium (160 dB) or high (172 dB) LF-weighted source levels (re 1 μPa RMS@1m). Compared to<i> </i>control/low treatments,<i> </i>during<i> </i>high noise playbacks the mother's proportion of time resting decreased by 30%, respiration rate doubled and swim speed increased by 37%. We therefore conclude that vessel noise is an adequate driver of behavioural disturbance in whales and that regulations to mitigate the impact of whale-watching should include noise emission standards. </span></p>
Data from: Vessel noise levels drive behavioural responses of humpback whales with implications for whale-watching
<p><span>Disturbance from whale-watching can cause significant behavioural changes with fitness consequences for targeted whale populations. However, the sensory stimuli triggering these responses are unknown, preventing effective mitigation. Here, we test the hypothesis that vessel noise level is a driver of disturbance, using humpback whales (<i>Megaptera novaeangliae</i>) as a model species. We conducted controlled exposure experiments (<i>n</i>= 42) on resting mother-calf pairs on a resting ground off Australia, by simulating whale-watch scenarios with a research vessel (range 100 m, speed 1.5 knts) playing back vessel noise at control/low (124/148 dB), medium (160 dB) or high (172 dB) LF-weighted source levels (re 1 μPa RMS@1m). Compared to<i> </i>control/low treatments,<i> </i>during<i> </i>high noise playbacks the mother's proportion of time resting decreased by 30%, respiration rate doubled and swim speed increased by 37%. We therefore conclude that vessel noise is an adequate driver of behavioural disturbance in whales and that regulations to mitigate the impact of whale-watching should include noise emission standards. </span></p>
Data from: Chronic traffic noise increases food intake and alters gene expression associated with metabolism and disease in bats
<ol> <li>Anthropogenic noise exposure has deleterious effects on the foraging ecology of many animals. However, the effects of chronic anthropogenic noise on food intake and health condition in wildlife remain largely unknown.</li> <li>We tested whether traffic noise exposure over multiple days would change food intake and would have effects on the health of Asian particoloured bats. We broadcast traffic noise to the bats of two noise-exposure groups (group A, 5 bats; group C, 6 bats) and broadcast silence files to the bats of two control groups (group B, 5 bats; group D, 6 bats) for 12 days. We measured the changes in food intake, body weight, and concentration of faecal triiodothyronine (T3) and thyroxine (T4) in groups A and B. We compared the transcriptional profiles in brain, kidney and liver tissues between bats in groups C and D.</li> <li>The bats exposed to traffic noise had a significantly higher daily food intake and a significantly greater body weight than bats in control group during the period of playback. Faecal T3 and T4 were higher in the noise-exposure group after playback had been on for more than one day.</li> <li>We found a total of 169 differentially expressed genes (DEGs) between noise-exposure and control groups. Some DEGs related to stress response were up-regulated in the bats exposed to noise. The 169 DEGs were mainly enriched in Gene Ontology (GO) terms associated with metabolism, fundamental cellular processes, stress response and immune response. The Kyoto Encyclopedia of Genes and Genomes (KEGG) pathways affected by noise exposure were linked with metabolism, disease, apoptosis, autophagy, phagosome and ribosome.</li> </ol> <p><i>Synthesis and applications</i>. Our results suggest that bats exposed to chronic traffic noise while roosting may need more energetic intake and have a greater motivation to forage than others not exposed to noise, probably as a result of a stress response. Furthermore, chronic traffic noise may increase the risk of metabolic dysregulation, immune disorders, and other diseases. Management measures for reducing noise disturbance, for example, implementing sound barriers, are essential.</p>
Data from: Anthropogenic noise does not surpass land cover in explaining habitat selection of Greater Prairie-Chicken (Tympanuchus cupido)
Over the last century, increasing human populations and conversion of grassland to agriculture have had severe consequences for numbers of Greater Prairie-Chickens (Tympanuchus cupido). Understanding Greater Prairie-Chicken response to human disturbance, including the effects of anthropogenic noise and landscape modification, is vital for conserving remaining populations because these disturbances are becoming more common in grassland systems. Here, we evaluate the effect of low-frequency noise emitted from a wind energy facility on habitat selection. We used the Normalized Difference Soundscape Index, a ratio of human-generated and biological acoustic components, to determine the impact of the dominant acoustic characteristics of habitat relative to physical landscape features known to influence within-home range habitat selection. Female Greater Prairie-Chickens avoided wooded areas and row crops but showed no selection or avoidance of wind turbines based on the availability of these features across their home range. Although the acoustic environment near the wind energy facility was dominated by anthropogenic noise, our results show that acoustic habitat selection is not evident for this species. In contrast, our work highlights the need to reduce the presence of trees which have been historically absent from the region, as well as decrease the conversion of grassland to row crop agriculture. Our findings suggest physical landscape changes surpass altered acoustic environments in mediating Greater Prairie-Chicken habitat selection.
Data from: Going the distance: Influence of distance between boat noise and nest site on the behavior of paternal smallmouth bass
<p>The effects of anthropogenic noise have garnered significant attention in marine ecosystems, but comparatively less is known about its impacts on freshwater ecosystems. For fish that provide parental care, the effects of acoustic disturbance could have fitness-level consequences if nest tending behavior is altered. This study explored the effects of motorboat noise on the parental behavior of nesting male smallmouth bass (Micropterus dolomieu; Lacépède, 1802), an important freshwater game fish in North America that provides sole paternal care to offspring. Specifically, we evaluated how boat noise proximity to a bass nest (ranging from 4.5 to 90 m) influenced paternal care behaviors. A total of 73 fish were exposed to a 3-min motorboat playback designed to simulate a boat sound that typically occurs in areas near littoral nesting sites. The fish were video recorded, and their behaviors were analyzed before, during, and after exposure to the playback. Residency time was the only behavioral metric to be adversely affected by noise playbacks but only when in close proximity to the speaker. Our results suggest that boat noise may have an impact on bass reproductive fitness in specific contexts where combustion motors are used near shore during the nesting period. The largely null findings may indicate a resilience to boat noise and/or habituation to the noise. In addition, boats displace water and create waves that represent another form of disturbance that could be experienced by fish but was not simulated here. Future research should integrate behavioral and physiological responses to boat noise and other aspects of boat disturbance to better understand the fitness impacts of boating activity on freshwater fish.</p>
Anthropogenic noise reduces avian feeding efficiency and increases vigilance along an urban-rural gradient regardless of species' tolerances to urbanisation
<p>Anthropogenic noise can adversely impact urban bird populations by interfering with vocal communication. Less research has addressed if anthropogenic noise masks the adventitious sounds that birds use to aid predator detection, which may lead to increased vigilance and reduced feeding efficiency. We test this hypothesis using a controlled playback experiment along an urban-rural gradient in Sheffield (UK). We also test the related predictions that anthropogenic noise has the greatest impacts on vigilance and feeding efficiency in rural populations, and on species that are more sensitive to urbanisation. We focus on six passerines, in order from most to least urbanised (based on how urbanisation influences population densities): blue tit Cyanistes caeruleus, robin Erithacus rubeculla, great tit Parus major, chaffinch Fringilla coelebs, coal tit Periparus ater and nuthatch Sitta europaea. We used play-back of anthropogenic urban noise and a control treatment at 46 feeding stations located along the urban-rural gradient. We assess impacts on willingness to visit feeders, feeding and vigilance rates. Exposure to anthropogenic noise reduced visit rates to supplementary feeding stations, reduced feeding rates and increased vigilance. Birds at more urban sites exhibit less marked treatment induced reductions in feeding rates, suggesting that urban populations may be partially habituated or adapted to noisy environments. There was no evidence, however, that more urbanised species were less sensitive to the impacts of noise on any response variable. Our results support the adventitious sound masking hypothesis. Urban noise may thus interfere with the ability of birds to detect predators, reducing their willingness to use food rich environments and increase vigilance rates resulting in reduced feeding rates. These adverse impacts may compromise the quality of otherwise suitable foraging habitats in noisy urban areas. They are likely to be widespread as they arise in a range of species including common urban birds.</p>
Noise Maps ACTION pilot data 2020
<p>The Noise Maps project focused on deploying a citizen science process in the Barcelona neighborhoods of Sagrada Familia and the Raval to address the challenge of noise pollution. The sound data was generated between May and September 2020.</p>
Data and masks for publication "Thermal intermodulation noise in cavity-based measurements"
<p>Raw measurement data, analysis code to reproduce the manuscript figures, and the GDS designs of PnC membranes</p>
Anthropogenic noise disrupts mate choice behaviors in female Gryllus bimaculatus
<p class="Heading1Text">By assessing the sexual signals produced by conspecifics, individuals can make informed decisions on the best choice of mate, which can lead to reproductive fitness benefits. However, these communication systems are often vulnerable to disruption by conflicting with stimuli present in the environment. Anthropogenic noise may act as one such disruptive stimulus, leading to inefficient mate choice decisions, and thus reductions to an animal's fitness. In this study, the mate choice behaviors of female <i>Gryllus bimaculatus</i> were tested when presented with artificial male courtship songs of differing 'quality' under different acoustic conditions. In ambient noise conditions, females significantly preferred mates paired with higher quality songs, indicated by increased mating rates and reduced latency to mate. However, this mate selection pattern was disrupted in both traffic and white noise conditions. Additionally, 'high quality' courtship songs had an increased mounting latency in traffic and white noise conditions, when compared to ambient noise conditions. Making non-optimal mating decisions, such as the ones seen here, can lead to deleterious fitness consequences, alter population dynamics and weaken sexual selection, unless individuals adapt to cope with anthropogenic interference.</p>
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.