70 Works

Videos of Gold Nanorods Etching in Graphene Liquid Cell Transmission Electron Microscopy- 28 mM FeCl3

Matthew Hauwiller, Justin Ondry & A. Paul Alivisatos
Premade gold nanorods were etched in a graphene liquid cell and imaged using Transmission Electron Microscopy (TEM). An aqueous solution of gold nanorods, Tris Buffer-HCl, and FeCl3 was encapsulated between graphene sheets. The final concentration of FeCl3 was 28mM. Through a combination of the electron beam-generated radiolysis products and the FeCl3, the nanorods underwent non-equilibrium etching. See associated papers for more details.

Videos of Gold Nanorods Etching in Graphene Liquid Cell Transmission Electron Microscopy- 34 mM FeCl3

Matthew Hauwiller, Justin Ondry & A. Paul Alivisatos
Premade gold nanorods were etched in a graphene liquid cell and imaged using Transmission Electron Microscopy (TEM). An aqueous solution of gold nanorods, Tris Buffer-HCl, and FeCl3 was encapsulated between graphene sheets. The final concentration of FeCl3 was 34 mM. Through a combination of the electron beam-generated radiolysis products and the FeCl3, the nanorods underwent non-equilibrium etching. See associated papers for more details.

Supplementary information for: Deterministic assembly of arrays of lithographically defined WS_2 and MoS_2 monolayer features directly from multilayer sources into van der Waals heterostructures

Hayden Taylor, Vu Nguyen, Hannah Gramling, Clarissa Towle, Wan Li, Der-Hsien Lien, Hyungjin Kim, Daryl Chrzan, Ali Javey, Ke Xu & Joel Ager
One of the major challenges in the van der Waals (vdW) integration of 2D materials is achieving high-yield and high-throughput assembly of pre-defined sequences of monolayers into heterostructure arrays. Mechanical exfoliation has recently been studied as a promising technique to transfer monolayers from a multilayer source synthesized by other techniques, allowing the deposition of a wide variety of 2D materials without exposing the target substrate to harsh synthesis conditions. Although a variety of processes have...

As the Wind Blows: The Effects of Long-Term Exposure to Air Pollution on Mortality

Replication files for "As the Wind Blows: The Effects of Long-Term Exposure to Air Pollution on Mortality", published in the Journal of the European Economic Association.

The many population genetic and demographic routes to islands of genomic divergence

Claudio Quilodrán, Kristen Ruegg, Ashley Sendell-Price, Eric Anderson, Tim Coulson & Sonya Clegg
The way that organisms diverge into reproductively isolated species is a major question in biology. The recent accumulation of genomic data provides promising opportunities to understand the genomic landscape of divergence, which describes the distribution of differences across genomes. Genomic areas of unusually high differentiation have been called genomic islands of divergence. Their formation has been attributed to a variety of mechanisms, but a prominent hypothesis is that they result from divergent selection over a...

Data from: Genome-wide epigenetic isolation by environment in a widespread Anolis lizard

Ian Wang, Guinevere Wogan, Michael Yuan & D. Luke Mahler
Epigenetic changes can provide a pathway for organisms to respond to local environmental conditions by influencing gene expression. However, we still know little about the spatial distribution of epigenetic variation in natural systems, how it relates to the distribution of genetic variation and the environmental structure of the landscape, and the processes that generate and maintain it. Studies examining spatial patterns of genetic and epigenetic variation can provide valuable insights into how ecological and population...

Contrasting impacts of a novel specialist vector on multi-host viral pathogen epidemiology in wild and managed bees

Robyn Manley, Ben Temperton, Mike Boots & Wilfert Lena
Typically pathogens infect multiple host species. Such multi-host pathogens can show considerable variation in their degree of infection and transmission specificity, which has important implications for potential disease emergence. Transmission of multi-host pathogens can be driven by key host species and changes in such transmission networks can lead to disease emergence. We study two viruses that show contrasting patterns of prevalence and specificity in managed honeybees and wild bumblebees, black queen cell virus (BQCV) and...

Direct mapping of curve-crossing dynamics in IBr by attosecond transient absorption spectroscopy

Yuki Kobayashi, Kristina Chang, Tao Zeng, Daniel Neumark & Stephen Leone
Herein is the experimental data set for the publication titled "Direct mapping of curve-crossing dynamics in IBr by attosecond transient absorption spectroscopy." The abstract of the paper is as follows: The electronic character of photoexcited molecules can abruptly change at avoided crossings and conical intersections. Here, we report direct mapping of the coupled interplay between electrons and nuclei in a prototype molecule, iodine monobromide (IBr), using attosecond transient absorption spectroscopy. A few-femtosecond visible pulse resonantly...

Data from: Megaphylogeny resolves global patterns of mushroom evolution

Torda Varga, Krisztina Krizsán, Csenge Földi, Bálint Dima, Marisol Sánchez-García, Santiago Sánchez-Ramírez, Gergely J. Szöllősi, János G. Szarkándi, Viktor Papp, László Albert, William Andreopoulos, Claudio Angelini, Vladimír Antonín, Kerrie W. Barry, Neale L. Bougher, Peter Buchanan, Bart Buyck, Viktória Bense, Pam Catcheside, Mansi Chovatia, Jerry Cooper, Wolfgang Dämon, Dennis Desjardin, Péter Finy, József Geml … & László G. Nagy
Mushroom-forming fungi (Agaricomycetes) have the greatest morphological diversity and complexity of any group of fungi. They have radiated into most niches and fulfill diverse roles in the ecosystem, including wood decomposers, pathogens or mycorrhizal mutualists. Despite the importance of mushroom-forming fungi, large-scale patterns of their evolutionary history are poorly known, in part due to the lack of a comprehensive and dated molecular phylogeny. Here, using multigene and genome-based data, we assemble a 5,284-species phylogenetic tree...

Data from: Harvest selection on multiple traits in the wild revealed by aquatic animal telemetry

Even Moland, Stephanie M. Carlson, David Villegas-Rios, Jørgen Ree Wiig & Esben Moland Olsen
Harvesting can have profound impacts on the ecology and evolution of marine populations. However, little is known about the strength and direction of fisheries-induced selection acting on multiple traits in the wild. Here, we used acoustic telemetry to directly monitor individual behavior and fate in an intensively harvested species, the European lobster (Homarus gammarus, n = 100), in southern Norway. Overall, 24% of the tracked lobsters survived the two-month harvest season within the study area....

Data from: Introduced parasite changes host phenotype, mating signal and hybridisation risk: Philornis downsi effects on Darwin’s finch song

Sonia Kleindorfer, Georgina Custance, Katharina Peters & Frank J. Sulloway
Introduced parasites that alter their host’s mating signal can change the evolutionary trajectory of a species through sexual selection. Darwin’s Camarhynchus finches are threatened by the introduced fly Philornis downsi that is thought to have accidentally arrived on the Galapagos Islands during the 1960s. The P. downsi larvae feed on the blood and tissue of developing finches causing on average ~55 % in-nest mortality and enlarged naris size in survivors. Here we test if enlarged...

Data from: Stochastic character mapping of state-dependent diversification reveals the tempo of evolutionary decline in self-compatible Onagraceae lineages

William A Freyman & Sebastian Höhna
A major goal of evolutionary biology is to identify key evolutionary transitions that correspond with shifts in speciation and extinction rates. Stochastic character mapping has become the primary method used to infer the timing, nature, and number of character state transitions along the branches of a phylogeny. The method is widely employed for standard substitution models of character evolution. However, current approaches cannot be used for models that specifically test the association of character state...

Predicted percentage dissatisfied with vertical air temperature difference

Shichao Liu, Zhe Wang, Stefano Schiavon, Yingdong He, Maohui Luo, Hui Zhang & Edward Arens
We conducted laboratory tests with four nominal vertical air temperature differences, 0.4, 2.9, 5.9, and 8.4 °C, between the head (0.1 m) level and ankles (1.1 m) level. Ninety-eight college-age students participated in a blind within-subject experiment.

Data from: Microbial functional diversity: from concepts to applications

Arthur Escalas, Lauren Hale, James Voordeckers, Yunfeng Yang, Mary Firestone, Lisa Alvarez-Cohen & Jizhong Zhou
Functional diversity is increasingly recognized by microbial ecologists as the essential link between biodiversity patterns and ecosystem functioning, determining the trophic relationships and interactions between microorganisms, their participation in biogeochemical cycles and their responses to environmental changes. Consequently, its definition and quantification have practical and theoretical implications. In this opinion paper, we present a synthesis on the concept of microbial functional diversity from its definition to its application. Initially, we revisit to the original definition...

Kinesin and dynein use distinct mechanisms to bypass obstacles

Luke S Ferro, Ahmet Yildiz, Sinan Can, Meghan A Turner & Mohamed M ElShenawy
Kinesin-1 and cytoplasmic dynein are microtubule (MT) motors that transport intracellular cargos. It remains unclear how these motors move along MTs densely coated with obstacles of various sizes in the cytoplasm. Here, we tested the ability of single and multiple motors to bypass synthetic obstacles on MTs in vitro. Contrary to previous reports, we found that mammalian dynein is highly capable of bypassing obstacles. Human kinesin-1 motors fail to avoid obstacles, consistent with their inability...

Data from: Species richness, endemism, and abundance patterns: tests of two fractal models in a serpentine grassland

Jessica Green, John Harte & Annette Ostling
From Ecology Letters: Although scaling relationships that characterize fractal species distributions offer an exciting potential for unification in biogeography, empirical support for fractal theory remains the subject of debate. We synthesize and test multiple predictions of two interrelated fractal models and a null model of random placement using Californian serpentine grassland data describing the spatial location of over 37 000 individually identified plants. The endemics–area relationship and species‐abundance distribution recently derived from a community‐level fractal...

Intensification of the Pre‐Meiyu Rainband in the Late 21st Century

John Chiang, Johannes Fischer, Wenwen Kong & Michael Herman
This contains the SST forcing files and model output for the CESM idealized runs used in Chiang, JCH, J Fisher, W Kong, and MJ Herman, "Intensification of the pre-Meiyu rainband in the late 21st century", submitted to Geophysical Research Letters, April 2019

Data from: Knock-on community impacts of a novel vector: spillover of emerging DWV-B from Varroa-infested honeybees to wild bumblebees

Robyn Manley, Ben Temperton, Toby Doyle, Daisy Gates, Sophie Hedges, Michael Boots & Lena Wilfert
Novel transmission routes can directly impact the evolutionary ecology of infectious diseases, with potentially dramatic effect on host populations and knock-on effects on the wider host community. The invasion of Varroa destructor, an ectoparasitic viral vector in Western honeybees, provides a unique opportunity to examine how a novel vector affects disease epidemiology in a host community. This specialist honeybee mite vectors deformed wing virus (DWV), an important re-emerging honeybee pathogen that also infects wild bumblebees....

Remote sensing spectral vegetation indices for 2011 NWCA wetland sites

Iryna Dronova, Sophie Taddeo & Kendall Harris
This dataset represents the values of Landsat-based spectral vegetation indices estimated for 1138 wetland sites included in the National Wetland Condition Assessment (NWCA) by the U.S. Environmental Protection Agency, represented by circular buffers with 40-m radius as described in Taddeo et al., Ecological Applications, In Press. Each spectral index is summarized as a mean and standard deviation of its 2011 maximum values for the Landsat pixels falling within the site boundaries. The dataset contains two...

Salinity and Velocity in Lower South San Francisco Bay

Olivia Hoang
In order to measure salinity gradients in the longitudinal, lateral, and vertical directions, a mesh of nine Ruskin RBR XR-420 CTDs and two Seabird SBE-37's were placed in various positions in all three dimensions. Lines 1, 2, 3, and 4 were placed in the channel. Lines 5 and 6 were placed in the shallows, lateral to line 2. Line 1 has two CTD's attached at the top and bottom of the water column. Lines 2...

Chronic Arsenic Exposure Impairs Adaptive Thermogenesis in Male C57BL/6J Mice

Felicia Castriota
The global prevalence of type 2 diabetes (T2D) has doubled since 1980. Human epidemiological studies support arsenic exposure as a risk factor for T2D, although the precise mechanism is unclear. We hypothesized that chronic arsenic ingestion alters glucose homeostasis by impairing adaptive thermogenesis, i.e. body heat production in cold environments. Arsenic is a pervasive environmental contaminant, with more than 200 million people worldwide currently exposed to arsenic-contaminated drinking water. Male C57BL/6J mice exposed to sodium...

Data from: Differential patterns of floristic phylogenetic diversity across a post‐glacial landscape

Ida M. Mienna, James D.M. Speed, Mika Bendiksby, Andrew H. Thornhill, Brent D. Mishler & Michael D. Martin
Aim In this study, we explored spatial patterns of phylogenetic diversity (PD) and endemism in the flora of Norway and tested hypothesized post‐glacial environmental drivers of PD, including temperature, precipitation, edaphic factors and time since glacial retreat. Location Norway. Taxon Vascular plants (Trachaeophyta). Methods We produced a multi‐locus maximum‐likelihood (ML) phylogeny using a combination of newly produced DNA sequences from herbarium specimens and sequences available from public repositories. We combined the phylogeny with species occurrence...

Habitat use, interspecific competition, and phylogenetic history shape the evolution of claw and toepad morphology in Lesser Antillean anoles

Michael Yuan, Catherine Jung, Marvalee Wake & Ian Wang
Ecologically functional traits are the product of several, at times opposing, selective forces. Thus, ecomorphological patterns can be disrupted locally by biotic interactions such as competition and may not be consistent across lineages. Here, we studied the evolution of claws and toepads in relation to macrohabitat (vegetation), use of structural microhabitat (perch height), and congeneric competition for two distantly-related Lesser Antillean anole clades: the bimaculatus and roquet series. We collect univariate and geometric morphometric data...

Personal thermal comfort models with wearable sensors

Shichao Liu, Stefano Schiavon, Hari Prasanna Das, Ming Jin & Costas Spanos
A personal comfort model is an approach to thermal comfort modeling, for thermal environmental design and control, that predicts an individual’s thermal comfort response, instead of the average response of a large population. We developed personal thermal comfort models using lab grade wearable in normal daily activities. We collected physiological signals (e.g., skin temperature, heart rate) of 14 subjects (6 female and 8 male adults) and environmental parameters (e.g., air temperature, relative humidity) for 2-4...

Shape-controlled single-crystal growth of InP at low temperatures down to 220 ℃

Der-Hsien Lien, Mark Hettick, Hao Li, Ali Javey, Matthew Yeh, Tzu-Yi Yang, Niharika Gupta, Matin Amani, Daryl Chrzan & Yu-Lun Chueh
III-V compound semiconductors are widely used for electronic and optoelectronic applications. However, interfacing III-Vs with other materials has been fundamentally limited by the high growth temperatures and lattice-match requirements of traditional deposition processes. Recently, we developed the templated liquid phase (TLP) crystal growth method for enabling direct growth of shape-controlled single crystal III-Vs on amorphous substrates. Although in theory, the lowest temperature for TLP growth is that of the melting point of the group III...

Registration Year

  • 2019

Resource Types

  • Dataset


  • University of California, Berkeley
  • University of Minnesota
  • United States Department of Agriculture
  • Lawrence Berkeley National Laboratory
  • University of Toronto
  • Technical University of Madrid
  • University of Exeter
  • Worcester Polytechnic Institute
  • University of California, Davis
  • Norwegian University of Science and Technology