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5,864 results for “live”
Stabilizing selection on a plumage-based foraging adaptation: hooded warblers with average-sized white tail spots live longer
<p><span>Avian flush-pursuit insectivores typically use contrasting white plumage patches in their tails or wings to startle potential prey. Although experimental evidence indicates that the extent of white has been fine-tuned by natural selection to optimize foraging performance, the hypothesis that within-population plumage variation directly influences survival or lifetime reproduction and is subject to stabilizing selection has not been tested. Here I provide such a test using data collected as part of a 14-year study of a colour-ringed breeding population of the hooded warbler (<em>Setophaga</em> <em>citrina</em>), a migratory flush-pursuit insectivore that shows inter-individual variation in the extent of white in the tail that is highly repeatable across molts and likely heritable. As expected under stabilizing selection, warblers with average-sized white tail patches achieved significantly higher long-term apparent survival than individuals with either a lesser or greater extent of white in the tail. Evidence of stabilizing selection was especially strong in males, an observation that is likely related to pronounced sexual habitat segregation on the wintering range. My results provide infrequently observed evidence of stabilizing selection operating in a natural population and also illustrate how stabilizing selection can act on avian plumage traits outside the context of sexual and social signaling.</span></p>
A dataset of community perspectives on living conditions and disaster risk management in informal settlements: A case study in KwaZulu-Natal Province, South Africa
<p>This article describes a dataset of community perspectives on living conditions and disaster risk management in Khan Road, a non-serviced informal settlement, located in Pietermaritzburg, the capital of KwaZulu-Natal province in South Africa. The data were collected by local community researchers via a structured questionnaire of 159 participants conducted between August and September 2022, using mobile phones via KoboToolbox. The dataset was analysed using exploratory data analysis (EDA) techniques. This household survey is part of a research project aiming to develop an evidence base of opportunities, risks and vulnerabilities related to housing construction and resource management in incremental upgrading of informal settlements in South Africa. This dataset can be used by local practitioners and policymakers involved in decision-making for informal settlement upgrading and help them prioritise resources and upgrading interventions based on what informal dwellers need. Furthermore, this cleaned dataset could support the analysis of further South African data guiding the development of digital platforms as a real-time resource management tool or guide the enhancement of existing theoretical frameworks in the field of participatory design and co-production used by academic scholars. </p>
3D Printed Living Bacterial Cellulose and Biopolymer Composite Material Samples
<p>The images in this dataset were captured during an experiment initiated on 13 March 2023 at CITA, at the Royal Danish Academy, School of Architecture. The experiment was performed on 3d printed samples made from a material combining living cellulose-producing bacteria with a biopolymer composite. The biopolymer composite combines a xantham gum binder, glycerol and calcium chloride with cellulose fillers sourced from side and waste streams materials. During the experiment, the dormant bacterial cellulose was reawakened through the spraying of tea nutrient at timed intervals of 30 minutes for 2 seconds, for a period of 42 days.</p><p> </p>
Supporting data for: The de novo genome of the Black-necked Snakefly (Venustoraphidia nigricollis Albarda, 1891): A resource to study the evolution of living fossils
<p>Snakeflies (Raphidioptera) are the smallest order of holometabolous insects that have kept their distinct and name-giving appearance since the Mesozoic, probably since the Jurassic, and possibly even since their emergence in the Carboniferous, more than 300 million years ago. Despite their interesting nature and numerous publications on their morphology, taxonomy, systematics, and biogeography, snakeflies have never received much attention from the general public, and only a few studies were devoted to their molecular biology. Due to this lack of molecular data, it is therefore unknown, if the conserved morphological nature of these living fossils translates to conserved genomic structures. Here, we present the first genome of the species and of the entire order of Raphidioptera. The final genome assembly has a total length of 669 Mbp and reached a high continuity with an N50 of 5.07 Mbp. Further quality controls also indicate a high completeness and no meaningful contamination. The newly generated data was used in a large-scaled phylogenetic analysis of snakeflies using shared orthologous sequences. Quartet score and gene-concordance analyses revealed high amounts of conflicting signals within this group that might speak for substantial incomplete lineage sorting and introgression after their presumed re-radiation after the asteroid impact 66 million years ago. Overall, this reference genome will be a door-opening dataset for many future research applications, and we demonstrated its utility in a phylogenetic analysis that provides new insights into the evolution of this group of living fossils.</p>
Replication package for: Stunting and wasting in a growing economy: biological living standards in Portugal during the twentieth century (updated)
<p>The replication materials contain a README file, STATA as well as .csv datasets, and do-files. This replication package for Cermeño et al. (2023) constructs the entire analysis from the data sources described in the published paper, using STATA. The replicator should expect the code to run for less than 10 minutes.</p> <p>Cermeño, A. L., Palma, N., and Pistola, R. (2023). Stunting and wasting in a growing economy: biological living standards in Portugal during the twentieth century. <em><strong>Economics & Human Biology</strong></em>, vol. 51: 101267</p>
Black Lives Matter mural - St. Petersburg (Fl)
Black Lives Matter street mural - St. Petersburg, Florida *"That was only a few weeks ago. She turned to St. Petersburg City Council member Lisa Wheeler Bowman, and the two went to the city's mayor and deputy mayor, who decided to greenlight and completely fund the mural."* https://www.tampabay.com/life-culture/arts/visual-arts/2020/06/19/a-new-black-lives-matter-mural-has-been-unveiled-in-st-petersburg/ *"It was a massive undertaking to get the mural painted. It was funded by the City of St. Petersburg in coordination with the St. Petersburg Arts Alliance — which produces the Shine Mural Festival — to assemble the artists and volunteers."* https://www.tampabay.com/life-culture/arts/visual-arts/2020/07/10/meet-the-tampa-bay-artists-who-created-the-black-lives-matter-mural-in-st-petersburg/ Reconstructed from various drone footage found around internet. Source: Objaverse 1.0 / Sketchfab
Uptake of Human Papilloma Virus vaccine among young women living in fishing communities in Wakiso and Mukono districts, Uganda
<p>Human Papilloma Virus (HPV) is a preventable cause of cervical cancer, the most common cancer among women in Uganda. The Uganda Ministry of Health included the HPV vaccine in the free routine immunization schedule since 2015. Five years after this policy, we assessed the uptake of the HPV vaccine and associated socio-demographic factors among young women living in fishing communities in Central Uganda in 2020.</p> <p>We analyzed secondary data from 94 young women aged 9–25 years who were recruited from the two fishing communities (Kasenyi landing site and Koome Island) in a primary implementation study that aimed to promote awareness of maternal and childhood vaccines. We assessed uptake of the HPV vaccine as the proportion of participants who self-reported to have ever received at least one dose of the HPV vaccine. We assessed the socio-demographic factors associated with HPV vaccine uptake using a modified Poisson regression model adjusted for clustering by study site in STATA version 17.</p> <p>The mean (standard deviation) age of study participants was 21.1 (3.1) years and most (81.9%) of them were from Kasenyi landing site. The uptake of the HPV vaccine was 10.6% [95% Confidence Interval (CI) 5.6, 18.9]. After adjusting for covariates, being 20–25 years old (adjusted prevalence ratio [aPR] 0.18, 95%CI 0.06, 0.59) and of Catholic religion (aPR 5.55, 95%CI 1.53, 20.16) were significantly associated with HPV vaccine uptake. The HPV vaccine uptake was very low, despite the reported 99% national coverage of HPV vaccination program for the first dose at the end of 2019. Age and religion were shown to be important determinants of the HPV vaccine uptake. Reasons for very low uptake of HPV vaccinations need to be carefully assessed to find effective strategies to improve it.</p>
Supplementary material for "Stellar flares" (Living Reviews in Solar Physics)
<p>The file supplementary.tar.gz contains a Jupyter notebook (Figs.ipynb) and supplementary material for recreating Figures 13, 35, 38, and 40 in Kowalski, A.F. (2024), "Stellar flares", <em>Living Reviews in Solar Physics</em> 24, 1 (<a href="10.1007/s41116-024-00039-4">https://doi.org/10.1007/s41116-024-00039-4</a>).</p>
Data from: thyroid hormone concentrations in female baboons: metabolic consequences of living in a highly seasonal environment
<p>How female mammals adapt metabolically in response to environmental variation remains understudied in the wild, because direct measures of metabolic activity are difficult to obtain in wild populations. However, recent advances in the non-invasive measurement of fecal thyroid hormones, triiodothyronine (T3), an important regulator of metabolism, provide an opportunity to understand how female baboons living in the harsh Amboseli ecosystem in southern Kenya adapt to environmental variability and escape strict reproductive seasonality. Specifically, we assessed how a female's activity budget, diet, and concentrations of fecal T3 metabolites (mT3) changed over the course of the year and between years. We then tested which of several environmental variables (season, rainfall, and temperature) and behavioral variables (female activity budget and diet) best predicted mT3 concentrations. Finally, we determined if two important reproductive events – onset of ovarian cycling and conception of an offspring – were preceded by changes in female mT3 concentrations. We found female baboons' mT3 concentrations varied markedly across the year and between years as a function of environmental conditions. Further, changes in a female's behavior and diet only partially mediated the metabolic response to the environment. Finally, mT3 concentrations increased in the weeks prior to menarche and cycling resumption, regardless of the month or season in which cycling started. This pattern indicates that metabolic activation may be an indicator of reproductive readiness in female baboons as their energy balance is restored.</p>
Data of "Sustainable and imperceptible augmentation of living structures with organic bioelectronic fibres"
<p>Functional and sensory augmentation of living structures, such as the human skin and plant epidermis, offers vast opportunities for biology-machine interface, wearable health, and environmental monitoring. However, current sensor and electronic formats could be obstructive to their hosts’ inherent sensations or physiological changes. Challenges are also faced in widening the augmentation of living structures without drastically increasing the global environmental and ecological burdens. Here, we demonstrate imperceptibly augmented living systems, through in situ tethering of poly (3,4-ethylenedioxythiophene) : polystyrene sulfonate (PEDOT:PSS)-based organic bioelectronic fibres. Customising fibre tether patterns and modalities enable applications from biopotential acquisition and skin-gated organic electrochemical transistors, to augmented touch and plant interfaces. The open networks formed by the intrinsically substrate-free fibres provide a biomorphic interface, while supporting direct rigid-to-flexible coupling with microelectronics and e-textiles. We further demonstrate conceptual fibre formats for on-demand device repair, upgrade, and recycle, or for enhancing electromechanical stability against touch. Our work may unfold bioelectronic interfaces that are simultaneously biologically-adaptable, sustainable, and created with unprecedented freedom.</p>
Fig. 16 in XXII. Free-living Nematodes from Greenland, Land and Freshwater.
Fig. 16. Dorylaimus conicaudatus. Hind part.
Fig. 15 in XXII. Free-living Nematodes from Greenland, Land and Freshwater.
Fig. 15. Dorylaimus conicaudatus. Front end.
Fig. 14 in XXII. Free-living Nematodes from Greenland, Land and Freshwater.
Fig. 14. Dorylaimus analatus. Hind part.
Fig 13 in XXII. Free-living Nematodes from Greenland, Land and Freshwater.
Fig 13. Dorylaimus analatus. Front end.
Fig. 12 in XXII. Free-living Nematodes from Greenland, Land and Freshwater.
Fig. 12. Dorylaimus groenlandicus. Hind part.
Fig. 10 in XXII. Free-living Nematodes from Greenland, Land and Freshwater.
Fig. 10. Dorylaimus groenlandicus. Front end.
Fig. 8 in XXII. Free-living Nematodes from Greenland, Land and Freshwater.
Fig. 8. Mononchus braflhyufís- FWM efld-
Fig. 18 in XXII. Free-living Nematodes from Greenland, Land and Freshwater.
Fig. 18. Dorylaimus conicaudatus Oesophageal gland.
Fig. 11 in XXII. Free-living Nematodes from Greenland, Land and Freshwater.
Fig. 11. Dorylaimus groenlandicus. Hind part of the oesophagus.
Fig. 9 in XXII. Free-living Nematodes from Greenland, Land and Freshwater.
Fig. 9. Mononchus brachyuris. Tail.
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.