92 Works

Silicate Compositions Database

Andrew Ericks, Frank Zok, David Poerschke & Carlos Levi
Degradation of thermal and environmental barrier coatings (T/EBC) by interactions with molten silicate deposits (ash, sand, dust) poses a fundamental threat to progress in gas turbine technology. This file is the first publicly available, comprehensive database of its kind on potential silicate deposits. It features in an accompanying article addressing an original ICME-inspired approach (Integrated Computational Materials Engineering) to analyzing the high dimensional data. The article responds to a longstanding need for identifying a reasonable...

Emergent properties as by-products of prebiotic evolution of aminoacylation ribozymes

Evan Janzen, Yuning Shen, Alberto Vazquez-Salazar, Ziwei Liu, Celia Blanco, Josh Kenchel & Irene Chen
The emergence of the genetic code was a major transition in the evolution from a prebiotic RNA world to the earliest modern cells. A prominent feature of the standard genetic code is error minimization, or the tendency of mutations to be unusually conservative in preserving biophysical features of the amino acid. While error minimization is often assumed to result from natural selection, it has also been speculated that error minimization may be a by-product of...

Play Sustainaball: An environmental footprint for an MLB team season

Hannah Brady, Gabrielle Barsotti, Jordan Davis, Carly Norris & Eric Shaphran
In recent years, there has been increased attention and focus from the public on the environmental impact of professional sports organizations. Significant opportunities exist for Major League Baseball (MLB) teams to both reduce their own environmental footprint, and that of their fans, through sustainability initiatives. Despite stadiums using upwards of ten million gallons of water per year and having the same energy needs as a small city, no MLB team has completed a public-facing quantification...

Large Herbivore Nemabiomes: Patterns of Diversity and Sharing

Georgia Titcomb, Johan Pansu, Matthew Hutchinson, Kaia Tombak, Christina Hansen, Chris Baker, Tyler Kartzinel, Hillary Young & Robert Pringle
Amidst global shifts in the distribution and abundance of wildlife and livestock, we have only a rudimentary understanding of ungulate parasite communities and parasite-sharing patterns. We used qPCR and DNA metabarcoding of fecal samples to characterize gastrointestinal nematode (Strongylida) community composition and sharing among 17 sympatric species of wild and domestic large mammalian herbivore in central Kenya. We tested a suite of hypothesis-driven predictions about the role of host traits and phylogenetic relatedness in describing...

Urbanization drives geographically heterogeneous freshwater salinization in the northeastern United States

Ryan Utz, Samantha Bidlack, Burch Fisher & Sujay Kaushal
Rising trends in freshwater salinity, collectively termed the Freshwater Salinization Syndrome (FSS), constitute a global environmental concern. Given that the FSS has been observed in diverse settings, key questions regarding the causes, trend magnitudes, and consequences remain. Prior work hypothesized that FSS is driven by state factors, such as human-centered land use change, geology, and climate. Here, we identify the fundamental overriding factors driving FSS within the northeastern United States and quantify the diversity of...

Forest Folks Data

Hanna Weyland
Data in this dataset was utilized as a part of the Bren School for Environmental Science & Management master's group project analyzing ecosystem services in the Tahoe Central Sierra Initiative.

Habitat Suitability Analysis of Larval Pacific Lamprey Habitat in the Columbia River Estuary

Ethan Hoffman, Craig Stuart, Lory Salazar-Velasquez & Krista Finlay
Pacific lamprey (Entosphenus tridentata) are native fish to the Columbia River Basin. Over the past 60 years, anthropogenic disturbances have contributed to a 95% decline of historical population numbers. Member-tribes of the Columbia River Inter-Tribal Fish Commission have acknowledged the importance of Pacific lamprey to the Columbia River ecosystem and expressed concern about the loss of an essential tribal cultural resource. As a result, the Columbia River Inter-Tribal Fish Commission created the Tribal Pacific Lamprey...

Supplementary material from \"Changes in invertebrate food Web structure between high- and low-productivity environments are driven by intermediate but not top-predator diet shifts\"

Ana Miller-ter Kuile, Austen Apigo, An Bui, Kirsten Butner, Jasmine N. Childress, Stephanie Copeland, Bartholomew P. DiFiore, Elizabeth S. Forbes, Maggie Klope, Carina I. Motta, Devyn Orr, Katherine A. Plummer, Daniel L. Preston & Hillary S. Young
Predator–prey interactions shape ecosystem stability and are influenced by changes in ecosystem productivity. However, because multiple biotic and abiotic drivers shape the trophic responses of predators to productivity, we often observe patterns, but not mechanisms, by which productivity drives food Web structure. One way to capture mechanisms shaping trophic response is to quantify trophic interactions among multiple trophic groups and by using complementary metrics of trophic ecology. In this study, we combine two diet-tracing methods:...

Sub-Lithospheric Small-Scale Convection Tomographically Imaged Beneath the Pacific Plate

Zachary Eilon
Small-scale convection beneath the oceanic plates has been invoked to explain off-axis non-plume volcanism, departure from simple seafloor depth-age relationships, and intraplate gravity lineations. We deployed thirty broadband OBS stations on ~40 Ma Pacific seafloor in a region notable for gravity anomalies, measured by satellite altimetry, elongated parallel to plate motion. P-wave teleseismic tomography reveals alternating upper mantle velocity anomalies on the order of ±2%, aligned with the gravity lineations. These features, which correspond to...

Global analysis of environmental and socioeconomic factors associated with human burden of environmentally mediated pathogens

Susanne Sokolow, Isabel Jones, Chelsea Wood, Kevin Lafferty, Andres Garchitorena, Skylar Hopkins, Andrea Lund, Andrew MacDonald, Nicole Nova, Chris LeBoa, Alison Peel, Erin Mordecai, Meghan Howard, Julia Buck, David Lopez-Carr, Michele Barry, Matthew Bonds & Giulio De Leo
This repository contains four datasets that support repeatability of the analyses in the Sokolow et al. paper published in Lancet Planetary Health. Descriptions of the four datasets are included in the metadata document. This study found that 80% of pathogen species known to infect humans are environmentally mediated, causing about 40% of contemporary infectious-disease burden (global loss of 130 million years of healthy life annually). More than 91% of this environmentally-mediated disease burden occurs in...

Icelandic Volcanic Rocks Isotopic Database (IVID)

Sunna Harðardóttir, Simon Matthews, Sæmundur Ari Halldórsson & Matthew Jackson
We compile a new geochemical database (Icelandic Volcanic rocks Isotopic Database, IVID) which includes previously reported 87Sr/86Sr, 143Nd/144Nd, 176Hf/177Hf, 206Pb/204Pb, 207Pb/204Pb, 208Pb/204Pb, 187Os/188Os and 3He/4He data and major and trace element concentrations measured in Icelandic volcanic rocks. Isotopic compositions were evaluated, and filtered to identify the highest quality data and data most likely to represent mantle-derived compositions. The carefully filtered, comprehensive geochemical database is an important contribution to the geochemical community and can be used...

Eocene Terrane Accretion in Northern Cascadia Recorded by Brittle Left-lateral Slip on the San Juan Fault

Nicolas Harrichhausen, Kristin Morell, Christine Regalla, Emerson Lynch & Lucinda Leonard
The San Juan fault, on southern Vancouver Island, Canada, juxtaposes the oceanic Wrangellia and Pacific Rim terranes in the northern Cascadia forearc, and has been suggested to play a role in multiple Mesozoic--Cenozoic terrane accretion events. However, direct observations of the San Juan fault's kinematics have not been documented and its exact role in accommodating strain arising from terrane accretion is unknown. To test if, how, and when the San Juan fault accommodated accretion-related strain,...

Efficient Creation and Morphological Analysis of ABC Triblock Terpolymer Libraries

Elizabeth Murphy, Yan-Qiao Chen, Kaitlin Albanese, Jacob Blankenship, Allison Abdilla, Morgan Bates, Cheng Zhang, Christopher Bates & Craig Hawker
Multiblock copolymers with increasingly complex block sequences—for example, triblock terpolymers—offer unique opportunities to create nanostructured materials, but this potential has been hindered by a vast design space that complicates the exploration of structure–property relationships. Here, we report a versatile and scalable strategy to separate parent ABC and isomeric ACB triblock terpolymers into libraries of fractionated samples spanning a wide range of compositions. Using a combination of controlled polymerization and automated chromatography, the synthesis and separation...

Impossible Possible Machines

Christina Vagt
Arguing against the current paradigm of computationalism, the article revisits Alexandre Koyré’s history of European techno-rationality and 17th-century figures like Descartes and Galileo. Here, one finds the machine emerging at precisely the time and place in history where the gap between mathematical-geometrical idealization and the reality of bodies and experiments first appeared. Historically, the machine is rooted in theatrical mechanics of simulation, illusion, fiction, and deception. Structurally, it appears in between subject and object, the...

Additional file 2 of A haplotype-resolved genome assembly of the Nile rat facilitates exploration of the genetic basis of diabetes

Huishi Toh, Chentao Yang, Giulio Formenti, Kalpana Raja, Lily Yan, Alan Tracey, William Chow, Kerstin Howe, Lucie A. Bergeron, Guojie Zhang, Bettina Haase, Jacquelyn Mountcastle, Olivier Fedrigo, John Fogg, Bogdan Kirilenko, Chetan Munegowda, Michael Hiller, Aashish Jain, Daisuke Kihara, Arang Rhie, Adam M. Phillippy, Scott A. Swanson, Peng Jiang, Dennis O. Clegg, Erich D. Jarvis … & Yury V. Bukhman
Additional file 2: Supplementary Table 1. TOGA status of 18430 ancestral placental mammal genes in muroid rodent genome assemblies. Supplementary Table 2. Positively selected genes and their mutation tolerance in humans according to gnomAD.

BEDMAP2 - Ice thickness, bed and surface elevation for Antarctica - standardised data points

Peter Fretwell, Alice Fremand, Julien Bodart, Hamish Pritchard, David Vaughan, Jonathan Bamber, N. Barrand, R.E. Bell, C Bianchi, Robert Bingham, Donald Blankenship, G. Casassa, Ginny Catania, D. Callens, H Conway, Alison Cook, Hugh Corr, D Damaske, V. Damn, Fausto Ferraccioli, Rene Forsberg, S. Fujita, Y. Gim, P. Gogineni, J. Griggs … & A. Zirizzotti
We present here the Bedmap2 ice thickness, bed and surface elevation standardised CSV data points that were used to create the Bedmap2 gridding products. The data consists of 25 million points coming from 68 individual surveys acquired in Antarctica. The associated datasets consist of: - Bedmap1 standardised CSV data points: https://doi.org/10.5285/f64815ec-4077-4432-9f55-0ce230f46029 - Bedmap3 standardised CSV data points: https://doi.org/10.5285/91523ff9-d621-46b3-87f7-ffb6efcd1847 - Bedmap2 statistically-summarised data points (shapefiles): https://doi.org/10.5285/0f90d926-99ce-43c9-b536-0c7791d1728b - Bedmap2 gridding products: https://doi.org/10.5285/fa5d606c-dc95-47ee-9016-7a82e446f2f2 This work is supported by...

Data for: Axisymmetric Displacement Flows in Flow-driven Fractures

Sri Savya Tanikella & Emilie Dressaire
The raw data presented in the associated manuscript entitled "Axisymmetric displacement flows in fluid-driven fractures" are included here. For experiments 1 through 16 (see table 3 for experimental parameters), we measure (1) the radius of the fracture during the formation of the pre-fracture, (2) the radius of the fracture during the displacement flow (i.e. when the second fluid is injected), and (3) the radial position of the interface during the two fluids, during the displacement...

A haplotype-resolved genome assembly of the Nile rat facilitates exploration of the genetic basis of diabetes

Huishi Toh, Chentao Yang, Giulio Formenti, Kalpana Raja, Lily Yan, Alan Tracey, William Chow, Kerstin Howe, Lucie A. Bergeron, Guojie Zhang, Bettina Haase, Jacquelyn Mountcastle, Olivier Fedrigo, John Fogg, Bogdan Kirilenko, Chetan Munegowda, Michael Hiller, Aashish Jain, Daisuke Kihara, Arang Rhie, Adam M. Phillippy, Scott A. Swanson, Peng Jiang, Dennis O. Clegg, Erich D. Jarvis … & Yury V. Bukhman
Abstract Background The Nile rat (Avicanthis niloticus) is an important animal model because of its robust diurnal rhythm, a cone-rich retina, and a propensity to develop diet-induced diabetes without chemical or genetic modifications. A closer similarity to humans in these aspects, compared to the widely used Mus musculus and Rattus norvegicus models, holds the promise of better translation of research findings to the clinic. Results We report a 2.5 Gb, chromosome-level reference genome assembly with...

Data from: Changes in Invertebrate Food Web Structure Between High- and Low-productivity Environments are Driven by Intermediate but Not Top Predator Diet Shifts

Ana Miller-Ter Kuile, Austen Apigo, An Bui, Kirsten Butner, Jasmine Childress, Stephanie Copeland, Bartholomew DiFiore, Elizabeth Forbes, Maggie Klope, Carina Motta, Devyn Orr, Katherine Plummer, Daniel Preston & Hillary Young
Predator-prey interactions shape ecosystem stability and are influenced by changes in ecosystem productivity. However, because multiple biotic and abiotic drivers shape the trophic responses of predators to productivity, we often observe patterns, but not mechanisms, by which productivity drives food web structure. One way to capture mechanisms shaping trophic response is to quantify trophic interactions among multiple trophic groups and by using complementary metrics of trophic ecology. In this study, we combine two diet-tracing methods:...

Indonesia makes progress towards zero palm oil deforestation

Robert Heilmayr & Jason Benedict
Indonesian deforestation for palm oil has declined significantly, with the greatest falls occurring in supply chains governed by zero-deforestation commitments. However, rising palm oil prices and the growing role of traders who have lower levels of public transparency threaten to undermine progress.

Covid, Colleges, and Classes

Danny Klinenberg & Richard Startz
At the start of the 2020 school year, some colleges chose to reopen in person while others offered primarily online classes. We find that colleges responded to financial and other incentives largely as one might expect. Larger shares of revenue attributed to in-person activities, such as dorms and dining halls, led schools to reopen in person. In general, the share of revenue due to tuition and fees had little association with reopening in-person, which is...

Data from: Context-dependent effects of shifting large herbivore assemblages on plant structure and diversity

Devyn Orr, An Bui, Maggie Klope, Michelle Lee, Ian McCullough, Carina Motta, Isabella Mayorga, Kelli Konicek & Hillary Young
Despite wide recognition of the importance of anthropogenically driven changes in large herbivore communities – including both declines in wildlife and increases in livestock – there remain large gaps in our knowledge about the impacts of these changes on plant communities, particularly when combined with concurrent changes in climate. Considering these prominent forms of global change in tandem enables us to better understand controls on savanna vegetation structure and diversity under real-world conditions.We conducted a...

Main Ethiopian Rift THBI Data

Jon Petruska & Zach Eilon
This data contains phase velocity maps in the form of .mat files, and in .xyz text files. Data is saved in the .xyz format as : Latitude, Longitude, phase velocity, standard deviation, and ray density. To be added later: RF's, and joint inversion final velocity profiles, also in the form of .mat files.

Spatial and Social Behavior of Acanthurus triostegus on Moorea (French Polynesia) and Palmyra Atoll (USA), 2017-2018

Ana Sofia Guerra
Human-induced environmental change has directly and indirectly affected ecosystems on a global scale, altering the behavior, ecology, and evolutionary trajectories of various species. Fishing of marine top predators and the cascading effects this may have on marine ecosystems is of critical concern. Predators are thought to be an important reason for why fish form schools, thus, a reduction in predator populations could alter schooling behavior for prey fish. Here, we investigate the indirect effects of...

Burrowing crabs and physical factors hasten marsh recovery at panne edges

Kathryn Beheshti, Charlie Endris, Peter Goodwin, Annabelle Pavlak & Kerstin Wasson
Salt marsh loss is projected to increase as sea-level rise accelerates with global climate change. Salt marsh loss occurs along both lateral creek and channel edges and in the marsh interior, when pannes expand and coalesce. Often, edge loss is attributed to erosive processes whereas dieback in the marsh interior is linked to excessive inundation or deposition of wrack, but remains poorly understood. We conducted a two-year field investigation in a central California estuary to...

Registration Year

  • 2022
    92

Resource Types

  • Dataset
    70
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    9
  • Text
    9
  • Journal Article
    2
  • Journal
    1
  • Output Management Plan
    1

Affiliations

  • University of California, Santa Barbara
    87
  • Cleveland State University
    6
  • Howard Hughes Medical Institute
    6
  • National Human Genome Research Institute
    6
  • Senckenberg Society for Nature Research
    6
  • Chongqing Medical University
    6
  • University of Wisconsin–Madison
    5
  • Earth and Space Sciences, University of Washington
    4
  • Purdue University West Lafayette
    4
  • Chinese Academy of Sciences
    4