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12,871 results for “aging;”
Weights and lengths from retrospective growth analysis of different stem age classes of Betula nana, 1995, Arctic LTER, Toolik Lake, Alaska.
This data file contains the data on weights and lengths from retrospective growth analysis of different stem age classes of Betula nana ramets from the LTER Nutrient and Warming manipulations in tussock tundra at Toolik Lake.
Stems were measured, and aged from Ledum palustre and Salix pulchra on LTER Moist Acidic Tussock Tundra 1981 plots summer 1990, Toolik Lake Filed Station, AK.
Stems were measured, and aged from Ledum palustre and Salix pulchra species on treated plots at Toolik Lake, AK. Stem secondary growth in per cent per year was estimated from the slope of weight per unit length vs. age.
Coarse Woody Debris (CWD) biomass across a compositional gradient of intermediate-aged and mature forest stands within Interior Alaska collected 2008-2011.
This dataset includes coarse woody debris data for intermediate-aged and mature boreal forest stands across interior Alaska.
Fine Woody Debris (FWD) biomass across a compositional gradient of intermediate-aged and mature forest stands within Interior Alaska collected 2008-2011.
This dataset includes fine woody debris data for intermediate-aged and mature boreal forest stands across interior Alaska.
Foliage chemistry across a compositional gradient of intermediate-aged and mature forest stands within Interior Alaska collected 2008-2011.
This dataset includes foliage %C and %N data for intermediate-aged (20-59 yr old) and mature (60+ yr old) boreal forest stands across interior Alaska. Data have not been published.
Snag size and composition across a compositional gradient of intermediate-aged and mature forest stands within Interior Alaska collected 2008-2011.
This dataset includes snag biomass data for intermediate-aged and mature boreal forest stands across interior Alaska.
Size and composition of all live and dead trees and large shrubs across a compositional gradient of intermediate-aged and mature forest stands within Interior Alaska collected 2008-2011.
This dataset includes snag biomass data for intermediate-aged (20-59 yr old) and mature (60+ yr old) boreal forest stands across interior Alaska. Data from intermediate-aged stands was published in Alexander et al. 2012.
Twig chemistry across a compositional gradient of intermediate-aged and mature forest stands within Interior Alaska collected 2008-2011.
This dataset includes twig %C and %N data for intermediate-aged (20-59 yr old) and mature (60+ yr old) boreal forest stands across interior Alaska. Data have not been published.
Estimated Age of Carbon within the Soil Organic Layer for Murphy Dome study site in 2013
This file contains radiocarbon data used to estimate age of the soil organic layer for black spruce and Alaska paper birch forest in the Murphy Dome fire scar near Fairbanks, AK. All information was collected in summer 2013 and subsequently processed and analyzed in the laboratory.
Tree ring, leaf mining, climate, and remote sensing data from aspen leaf miner survey sites: II - Tree DBH and age
This dataset contiains tree level measurements of diameter at breast height (DBH) and age of aspen that were sampled in 2015 for tree ring anlyses. The tree ages provided are the age of the tree in 2015.
Sap Flux and Microclimate Data for Co-Occurring White Spruce and Paper Birch at an Intermediate Aged Stand in the Bonanza Creek LTER Regional Site Network 2013-2018
This dataset contains hourly mean sap flux density and microclimate data for co-occurring white spruce and Alaska paper birch from early June of 2013 to mid-September of 2018. The data were published as part of a 2021 article in Journal of Ecology.
Age, growth and reproduction of mottled sculpin (cottus bairdi) in the Coweeta creek drainage from 1993 to 1998
We quantified: (1) growth rate, (2) length-mass relationships, (3) size- and age-specific fecundity, (4) egg sizefrequencies, and (5) size- and age-specific egg diameter relationships for reproductively active female C. bairdi from one of the southern-most extant populations of this species (Coweeta Creek drainage, North Carolina). Gravid females were collected during February and March in 1993–1995, and 1998.Cottus bairdi were collected from Shope Fork and Ball Creek in early spring prior to spawning. We are determining age and length specific fecundities from analysis of whole ovaries. We are also investigating whether are age or length specific differences exist in egg size. We are determining sex specific growth rates back-calculation of age at length from otolith analysis.
Age and annual growth of clams (Mya arenaria) during 2010 to 2011 in the Plum Island Sound estuary, Newbury, Rowley and Ipswich, MA.
Age and annual growth of soft shell clams (Mya arenaria) were estimated using internal growth lines . The accuracy of these estimates was assessed by comparing them to a d18O analysis of shell carbonate at six sites in the Plum Island Sound estuary
Tree ages and Locations on the Eastern Shore of Virginia National Wildlife Refuge
Cores were taken from live trees in the hillslope site in the Eastern Shore of Virginia National Wildlife Refuge. "TreeAges.csv" has the ID of the tree, the UTM 18N Easting and Northing and the NAVD88 Elevation (these are identical to the hillslope "ALIVE" points in the topographic surveys - dataset VCR19288), and the year that the tree was established from the dendrochronology analysis. Complete methods for the dendrochronology analysis can be found in Fernandes et al. (2018) Declining radial growth response of coastal forests to hurricanes and nor'easters. JGR: Biogeosciences. (https://doi.org/10.1002/2017JG004125) Location and elevation data were collected using a real-time kinematic (RTK) Global Positioning System (GPS) unit.
Scatter plot diagram to demonstrate correlation between relative telomere length (RTL) and age.
<p><strong>Figure S1. </strong>Scatter plot diagram to demonstrate correlation between relative telomere length (RTL) and age.</p>
Scatter plot diagram to demonstrate correlation between relative telomere length (RTL) and age.
<p><strong>Figure S1. </strong>Scatter plot diagram to demonstrate correlation between relative telomere length (RTL) and age.</p>
Aubrey De Grey, Aging, and Alternative Approaches to Research
<p><strong>Episode Summary:</strong></p> <p>In this episode we interview Dr Aubrey De Grey, founder of the SENS Research Foundation which aims to develop a cure for aging! De Gray works outside mainstream science and we talked to him about his controversial theories, views on citizen science, and rewarding radical ideas in science.</p> <p><strong>Links:</strong> </p> <p><a href="https://www.sens.org/">SENS Foundation</a></p> <p><a href="https://www.youtube.com/watch?v=7kqXBSJf4PQ&t=65s">Would You Want to Live Forever?</a> Video on Emilia Tikka's Speculative Art Piece (Turn on subtitles)</p> <p><strong>Quotes: </strong></p> <p>"It took us 10 years to get our 1st publication”</p> <p>"I'm not planning to die"</p>
Trampoline Gymnastics - World Age Group Competitions 1999-2019
<p>Database including all medals awarded during the World Age Group Competitions in Trampoline Gymnastics (Individual Trampoline, Synchronized Trampoline, Tumbling and Double Minitrampoline) from 1999 until 2019</p>
Temperature Activates Contact Aging in Silica Nanocontacts
<p>Data presented in the CECAM workshop: Emergence of surface and interface structure from friction, fracture and deformation ( link: cecam.org/index.php/workshop-details/215). </p> <p>Here we unravel the temperature dependence of both static friction and contact stiffness on a silica contact. Further in-depth details are provided in the associated peer-reviewed freely available publication (https://doi.org/10.1103/PhysRevX.9.041045).</p> <p> </p>
COVID-19 case-fatality–derived age-adjusted risk of death
<p><strong>This is a version of the plot without split into gender-adjusted risks. For the newer version with gender-adjusted curves, please visit </strong><a href="https://zenodo.org/record/3829175">https://zenodo.org/record/3829175</a><br> doi:10.5281/zenodo.3787931</p> <p>This is a plot of the risk of death in COVID-19, which was adjusted by the age and derived from the case fatality data kindly collected by the team of data scientists and data engineers participating in the Kaggle project Data Science for COVID-19 in South Korea (DS4C), which is hosted at https://www.kaggle.com/kimjihoo/coronavirusdataset.</p> <p>The model for the plot was created with the release 2.1 of the Python & C library initially published on April 3, 2020 on GitHub at https://github.com/yuryatin/covid19_age_adjusted_mortality.</p> <p>Please, visit https://github.com/yuryatin/covid19_age_adjusted_mortality for more detailed description of the model and the source code.</p>
ScienceDex guides
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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.