cometadata/datacite-titles-descriptions-related-identifiers huggingface dataset:
DOI: 10.4231/95my-8v89
title: ABAQUS Code for the Simulation of Scutoid Interlocked Material Systems

description: &lt;p&gt;A series of files for the execution of finite element simulations of topologically interlocked assemblies are provided and can be executed with the finite element code ABAQUS (or similar).&lt;/p&gt;

&lt;p&gt;In all files the following structure is present:&lt;/p&gt;

&lt;p&gt;-- For each part of the assembly (frame, indenter, building block), a definition of nodes (*node) and sets of nodes (*nset), elements (*element) and set of elements (*elset) is provided.&lt;/p&gt;

&lt;p&gt;-- Instances of parts are defined an placed in the assembly at position according to the assembly plan.&lt;/p&gt;

&lt;p&gt;-- Parts frame and indenter are defined as rigid bodies (*rigid body) . Building blocks as linear elastic (*elastic).&lt;/p&gt;

&lt;p&gt;-- Boundary conditions and constraints are defined (*boundary)&lt;/p&gt;

&lt;p&gt;-- Surfaces (*surface), surface behavior (*surface behavior) and contact interactions (*contact) are given.&lt;/p&gt;

&lt;p&gt;-- A mass scaled explicit solution is used (*dynamic, explicit)&lt;/p&gt;

&lt;p&gt;-- Computed values are recorded (*node output, *energy output, *element output)&lt;/p&gt;

&lt;p&gt;ABAQUS inp file for a 6 by 6 assembly of hexagonal scutoids, coefficient of friction 0.4: HexScutoid6x6mu4.inp&lt;/p&gt;

&lt;p&gt;ABAQUS inp file for a 6 by 6 assembly of hexagonal scutoids, all building blocks fused to a monolithic system: HexScutoid6x6mu4_fused.inp&lt;/p&gt;

&lt;p&gt;ABAQUS inp file for a 7 by 7 assembly of hexagonal scutoids, coefficient of friction 0.4: HexScutoid6x6mu4.inp&lt;/p&gt;

&lt;p&gt;ABAQUS inp file for a 6 by 6 assembly of pentagonal scutoids, coefficient of friction 0.4: PentagonScutoid6x6mu4.inp&lt;/p&gt;

&lt;p&gt;ABAQUS inp file for a 7 by 7 assembly of pentagonal scutoids, coefficient of friction 0.4: PentagonScutoid6x6mu4.inp&lt;/p&gt;

&lt;p&gt;ABAQUS inp file for a 6 by 6 assembly of tetrahedra, coefficient of friction 0.4: Tetrahedra6x6mu4.inp&lt;/p&gt;

&lt;p&gt;ABAQUS inp file for a 7 by 7 assembly of tetrahedra, coefficient of friction 0.4: Tetrahedra7x7mu4.inp&lt;/p&gt;

&lt;p&gt;This work was supported by NSF Award 16622177.&lt;/p&gt;
description: This data set contains input files for the simulation and analysis of scutoid-based Topologically Interlocked Material systems together with those for a reference system with tetrahedra building blocks.
DOI: 10.4231/tjk7-yd07
title: Data for A retrospective feasibility study of agricultural education in Africa using YouTube multilingual animations

description: &lt;p&gt;There is a critical need for widespread information dissemination of agricultural best practices in Africa.  Literacy, language and resource barriers often impede such information dissemination.  Culturally and linguistically localized, computer-animated training videos placed on YouTube and promoted through paid advertising is a potential tool to help overcome these barriers.  The goal of this study is to assess the feasibility of reaching language-diverse populations in Africa using this new type of information dissemination channel.  As a case study, cost estimates were obtained for YouTube ad campaigns of a video to prevent post-harvest loss through safe food storage using sanitized jerrycan containers.  Seventy-three video variants were created for the most common 16 languages in Ghana, 35 languages in Kenya, and 22 languages in Nigeria.  Using these videos, campaigns were deployed country wide or focused on zones of influence that represent economically underdeveloped regions known to produce beans suitable for jerrycan storage.  Using data collected from YouTube ad campaigns, language-specific models were created for each country to estimate how many viewers could be reached per US dollar spent.  Separate models were created to estimate the number of viewers who watched 25% and 75% of the video (most of video without end credits), reflecting different levels of engagement.  For language campaigns with both country wide and zone of influence areas of deployment, separate region-specific models were created. &lt;/p&gt;

&lt;p&gt;GoogleAd daily reports were gererated and stored as csv files with the date of the campaign serving as the file name. Matlab code was created to compile the data into the JerrycanV16fromGoogleAd14.xlsx spreadsheet, which was used for data analysis.&lt;/p&gt;

&lt;p&gt;Note that the raw data files have two different sets of headers. The headers for data collected before 2021-09-15 contains columns &#39;Currency&#39; and &#39;Impressions&#39;, while the data collected after that date contain columns &#39;Currency code&#39; and &#39;Impr.&#39;.&lt;/p&gt;
description: The goal of this study is to assess the feasibility of reaching language-diverse populations in Africa using culturally and linguistically localized, computer-animated training videos placed on YouTube and promoted through paid advertising.
DOI: 10.4231/7e38-fx40
title: Heatmap: Spatiotemporal Traffic Speed Graphics using Connected Vehicle Data

description: &lt;p&gt;This dataset provides 286,065 connected vehicle trajectory data waypoints for a day on Thursday, May 11, 2023, over 15 miles section of interstate on I-69 northbound in Indiana. The trajectory data provides information for more than 0.2 million individual waypoints about timestamp and location. Temporal frequency of waypoints is 3 to 5 seconds.&lt;/p&gt;

&lt;p&gt;The videos explain and illustrate the use of connected vehicle trajectory data for building spatiotemporal traffic speed graphics along a highway (aka heatmaps). Such a graphic provides an opportunity to agencies for monitoring traffic conditions on freeways.&lt;/p&gt;

&lt;p&gt;The dataset consists of the following attributes:&lt;/p&gt;

&lt;ol&gt;
 &lt;li&gt;id: unique identifier for each of the record&lt;/li&gt;
 &lt;li&gt;journeyid: identifier for journey between ignition start and end&lt;/li&gt;
 &lt;li&gt;timestamp: timestamp in UTC&lt;/li&gt;
 &lt;li&gt;speed: speed in mph&lt;/li&gt;
 &lt;li&gt;latitude: geographic coordinate that measures a point&rsquo;s north-south position&lt;/li&gt;
 &lt;li&gt;longitude: geographic coordinate that measures a point&rsquo;s east-west position&lt;/li&gt;
&lt;/ol&gt;

&lt;p&gt;The dataset can be used for traffic performance evaluation using granular trajectory-based speed information. Methodologies can be developed using such a sample dataset.  &lt;/p&gt;
&lt;!-- p&gt;&lt;iframe frameborder="0" scrolling="no" src="https://youtu.be/Tk9ePm12gDk" title="Heatmap using 91 Connected Vehicles"&gt;&lt;/iframe&gt;&lt;/p --&gt;

&lt;p&gt;&lt;iframe allow="accelerometer; autoplay;" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/Tk9ePm12gDk?si=GfiasIkczzi_nLoT" title="Heatmap using 91 Connected Vehicles" width="560"&gt;&lt;/iframe&gt;&lt;/p&gt;

&lt;p&gt;&lt;iframe allow="accelerometer; autoplay;" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/uPVavd8Zc4M?si=znT1xLMMgEPbogLi" title="Heatmap using 5 Sample Connected Vehicles" width="560"&gt;&lt;/iframe&gt;&lt;/p&gt;

&lt;p&gt;&lt;iframe allow="accelerometer; autoplay;" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/qe4AINDhiCY?si=NyVjC5gDariF0N_c" title="Heatmap using 1 Sample Connected Vehicle" width="560"&gt;&lt;/iframe&gt;&lt;/p&gt;

&lt;p&gt;&lt;iframe allow="accelerometer; autoplay;" allowfullscreen="" frameborder="0" height="315" src="https://www.youtube.com/embed/oICOl_l1j5A?si=lcfocKn_EOBxTn1k" title="Heatmap using Shockwave from the Incident" width="560"&gt;&lt;/iframe&gt;&lt;/p&gt;
description: Visualization of connected vehicle trajectory data along a work zone on Indiana interstate I-69 in northbound direction for 15 miles section from mile marker location 245 to 260 using connected vehicle records on Thursday, May 11, 2023.
DOI: 10.4231/gfsh-ad43
title: Smelt fatty acid and stable isotope data from three Swedish large lakes

description: &lt;p&gt;These data correspond to a study of Eurasian smelt from three Swedish lakes: Hj&auml;lmaren, M&auml;laren and V&auml;ttern: &ldquo;&lt;em&gt;Stable isotope and fatty acid variation of a planktivorous fish among and within large lakes&lt;/em&gt;&rdquo; in PloS ONE.&lt;/p&gt;

&lt;p&gt;Smelt were collected from the three lakes during July-September 2016 by the Swedish University of Agricultural Sciences, using gillnets in M&auml;laren and Hj&auml;lmaren and trawling onboard R/V Asterix on V&auml;ttern. Fish were frozen and dissected upon collection. Dorsal muscle samples were taken for fatty acid and stable isotope analyses.&lt;/p&gt;

&lt;p&gt;Stable isotopes were measured at University of California-Davis Stable Isotope Facility (stableisotopefacility.ucdavis.edu/) using an elemental analyzer (PDZ Europa ANCA-GSL) interfaced to a continuous flow isotope ratio mass spectrometer (PDZ Europa 20-20). Sample isotope ratios were expressed as &delta;&lt;sup&gt;13&lt;/sup&gt;C and &delta;&lt;sup&gt;15&lt;/sup&gt;N, relative to international standards: Vienna Pee Dee beleminite (&delta;&lt;sup&gt;13&lt;/sup&gt;C) and atmospheric N&lt;sub&gt;2&lt;/sub&gt; (&delta;&lt;sup&gt;15&lt;/sup&gt;N).&lt;/p&gt;

&lt;p&gt;Fatty acids were quantified at Purdue University&rsquo;s Department of Forestry and Natural Resources using a Shimadzu gas chromatograph model GC-2010 with flame ionization detector, autoinjector, and EZStart software version 7.4 (Shimadzu Corp.; &lt;a href="http://www.shimadzu.com"&gt;www.shimadzu.com&lt;/a&gt;). Fatty acid values are expressed as proportional composition by mass, with proportion calculated among the 12 fatty acids that represented &gt;1% of total fatty acid mass by sample median.&lt;/p&gt;
description: These data are for individual Eurasian smelt collected in three large lakes in Sweden. The total length of individual fish is provided along with delta13C and delta15N stable isotope ratios and proportional composition (by mass) of the most abundant fatty
DOI: 10.4231/13d9-3v89
title: The effect of CO2 and Far-red on distinctive stages of indoor lettuce crop production

description: &lt;p&gt;This project aims to investigate the effect of far-red (FR) radiation as an extension to photosynthetically active radiation, in combination with various CO2 concentrations on indoor leafy greens production. Lettuce (&lt;em&gt;Lactuca Sativa&lt;/em&gt; cv. &#39;Rouxai&#39;) was used as a model plant. The experiment was conducted in a walk-in growth chamber, with 4 LED lighting systems, each was adjusted to a distinctive lighting recipe. As a control, the flux of FR was zero and the light intensity included the combination of red and blue. Different fluxes of FR were substituted for red at 20, 40, and 60 micromoles per meter square per second. Three various CO2 concentrations of 400, 800, and 1200. Each CO2 concentration was applied to the whole chamber where lighting treatments were nested inside, making the split plot the most suitable experimental layout. End-point growth parameters were collected on days 14, 18, and 22 days after the seed sown. Growth parameters include fresh and dry biomass, leaf area, leaf length, leaf number, and red pigmentation analysis. Data were subjected to Linear mixed effect model analysis and SAS codes are provided in the current dataset.&lt;/p&gt;
description: The dataset includes end-point growth parameters collected for various stages of early-lettuce crops produced in indoor conditions.
DOI: 10.4231/nkx4-mm81
title: Chavas Knaff Klotzbach 2024 Pmin prediction model

description: &lt;p&gt;Code to predict tropical cyclone Pmin from Vmax, R34kt, latitude, translation speed, and environmental pressure (or pressure of outermost closed isobar)&lt;/p&gt;

&lt;p&gt;Source: Chavas D.R., Knaff J.A. and P. Klotzbach  (2025). A Simple Model for Predicting Tropical Cyclone Minimum Central Pressure from Intensity and Size. Wea. For., 40(2), pp.333-346&lt;/p&gt;

&lt;p&gt;Simple: Eq 5 to estimate dP; use Penv (or Eq 6 from Poci) to estimate Pmin. &lt;/p&gt;

&lt;p&gt; &lt;/p&gt;

&lt;p&gt;Also included: MATLAB scripts for the figures in the paper&lt;/p&gt;
description: A simple model for predicting tropical cyclone minimum central pressure from intensity and size
DOI: 10.4231/3bah-5v53
title: Effects of Perfluorinated alkyl substances (PFAS) on amphibian body and liver condition: Is lipid metabolism being perturbed throughout metamorphosis?

description: &lt;p&gt;Per- and polyfluoroalkyl substances (PFAS) are a widespread class of pollutants and may interact with peroxisome proliferator activated receptors (PPAR), therefore altering lipid homeostasis. Using the model &lt;i&gt;Xenopus laevis,&lt;/i&gt; we investigated the effect of PFAS on lipid homeostasis and whether this correlated to changes in scaled mass index (SMI, a measure of body condition) or hepatic condition, (b) gene expression of targets regulated by PPAR in the liver, and (c) the hepatic lipidome. We chronically exposed tadpoles to 0.5 &micro;g/L of either PFOS, a PFHxS, PFOA, PFHxA, a binary mixture of PFOS and PFHxS (0.5 &micro;g/L of each), or a control, from NF stage 52 through metamorphic climax. Growth, development, and survival were generally not affected, but we detected a sex-specific decrease in body condition (measured as Scaled Mass Index, SMI) at NF 66 and in hepatic condition across metamorphic climax for male &lt;i&gt;X. laevis&lt;/i&gt; tadpoles exposed to PFOS. We observed a transient downregulation for apolipoprotein-V (&lt;i&gt;apoa5&lt;/i&gt;) at NF 62 for tadpoles exposed to PFHxA. We also observed downregulation of acyl-CoA oxidase 1 (&lt;i&gt;acox1), &lt;/i&gt;but only for males exposed to PFHxS. We detected PFAS-specific downregulation of structural glycerophospholipids, while semi-quantitative profiling detected upregulation in numerous glycerophospholipids, sphingomyelins, and diglycerides. Overall, our findings indicate that PFAS can induce sex-specific effects that change across larval development and metamorphosis, suggesting the need for longitudinal studies that explicitly consider sex. We demonstrate that PFAS alter lipid metabolism at low, environmentally relevant concentrations, through divergent mechanisms that are not related to PPARs these effects occurred in the absence of major effects on body condition, suggesting, demonstrating the need for more molecular studies to elucidate mechanisms of PFAS-induced lipid dysregulation in amphibians and in other taxa.&lt;/p&gt;
description: PFAS may interact with peroxisome proliferator activated receptors and alter lipid homeostasis. Using the model Xenopus laevis, we investigated the effect of PPFAS on lipid homeostasis.
DOI: 10.4231/fyn8-0068
title: Effects of PFOA and 6:2 FTS Across Sex and Life Stages in Xenopus Laevis

description: &lt;p&gt;Per- and polyfluoroalkyl substances (PFAS) are an emerging, global threat to environmental health due to their persistence in the environment and their toxicity. The effects of perfluorooctanoic acid (PFOA) and 6:2 fluorotelomere sulfonate (FTS), a legacy and next generation PFAS respectively, have not been explored for &lt;em&gt;Xenopus laevis&lt;/em&gt;. In addition, whether sexes differ in responses to PFAS exposure is unexplored in amphibians. The aims of this work were to establish toxicity reference values for PFOA and 6:2 FTS for &lt;em&gt;X. laevis &lt;/em&gt;and to test whether any observed effects were sex-specific. Larvae were exposed to a range of PFOA (1.2 to 100 ppm) and 6:2 FTS (1.2 to 1200 ppb) from Niewkoop and Faber (NF) stage 51 to 65. Although we observed no effects on survival, snout-vent length, body condition, or developmental rate, a significant increase in body weight was detected for the two highest concentrations of PFOA (mean of 8.74%) and 6:2 FS (21.01%). Effects were not affected by genetic sex, therefore future studies may be able to ignore sex as a confounding variable under these exposure conditions. Our results also support the idea of PFOA and 6:2FTS act as obesogens. More studies are needed to determine the long-term implications of this increase in body mass.&lt;/p&gt;
description: PFAS are a global threat to environmental health due to their persistence and toxicity. The effects of PFOA and 6:2 FTS were explored in Xenopus laevis. The only effect observed was a significant increase in body weight for both PFAS supporting...
DOI: 10.4231/by5r-gg48
title: Serpentinite weathering in Puerto Rico

description: &lt;p&gt;This dataset concerns watershed-scale hydrology, erosion, and weathering in serpentinite watersheds in southwestern Puerto Rico. The dataset comprises watershed locations and physical characteristics, wet and dry season water quality data, sediment geochemistry and derived weathering indices, estimated specific discharges and solute fluxes, and cosmogenic &lt;sup&gt;36&lt;/sup&gt;Cl-derived erosion rates in 15 watersheds. The dataset was collected between 2020 and 2022 to study the factors that control ultramafic rock weathering rates in the tropics.&lt;/p&gt;

&lt;p&gt;In addition, a compilation of discharge data from USGS stream gauges in Puerto Rico and watershed-averaged precipitation rates in the gauged catchments are included. These data are used to generate a rainfall-runoff relationship to estimate specific discharge in the study watersheds.&lt;/p&gt;

&lt;p&gt;The dataset is presented in 9 tables that are included in a single excel file (.xlsx). In addition, &lt;i&gt;GNU Octave&lt;/i&gt; code packages to determine watershed-averaged nucleonic scaling factors, and to calculate erosion rates from Cl isotope ratios, target chemistries, and watershed-averaged scaling factors are included. This dataset was produced with support from NSF-EAR-2011358 and NSF-EAR-2011342. &lt;/p&gt;
description: Data on hydrology, weathering, and erosion in serpentinite watersheds in Puerto Rico collected 2020-2022.
DOI: 10.4231/r0s6-0p69
title: ABAQUS Code for the Simulation of Wave propagation in a Row of Tetrahedra

description: &lt;p&gt;This study is concerned with the mechanics of wave propagation in a type of architectured, granular, material system. Specifically, we investigate wave propagation in a topologically interlocked material (TIM) system. TIM systems are assemblies of polyhedrons in which individual polyhedrons cannot be removed from the assembly without complete disassembly due to the geometric interlocking of the polyhedrons. The study employs an explicit finite element code to compute phase velocities, amplitude distributions, and wave patterns in a linear assembly of topologically interlocking tetrahedra. Tetrahedra are considered fully 3D linear elastic bodies interacting with neighboring tetrahedra by contact and friction.&lt;/p&gt;

&lt;p&gt;This publication contains the following inp files for use with the FE code ABAQUS:&lt;/p&gt;

&lt;p&gt;FullChainMu0V01Linear.inp -- A row of tetrahedra, constant contact stiffness, no friction, impact velocity 1.0 m/s.&lt;/p&gt;

&lt;p&gt;FullChainMu5V01Linear.inp -- A row of tetrahedra, constant contact stiffness, Coulomb friction with coefficient of friction 0.5, impact velocity 1.0 m/s.&lt;/p&gt;

&lt;p&gt;ExpAV01.inp -- A row of tetrahedra, variable contact stiffness, no friction, impact velocity 1.0 m/s.&lt;/p&gt;

&lt;p&gt;ExpBV01.inp -- A row of tetrahedra, variable contact stiffness, no friction, impact velocity 1.0 m/s.&lt;/p&gt;

&lt;p&gt;PartiallyFused.inp -- A row of tetrahedra with several tetrahedra fused together, constant contact stiffness, no friction, impact velocity 1.0 m/s.&lt;/p&gt;

&lt;p&gt;PartiallyFusedFric.inp -- A row of tetrahedra with several tetrahedra fused together, constant contact stiffness, Coulomb friction with coefficient of friction 0.5, impact velocity 1.0 m/s.&lt;/p&gt;

&lt;p&gt;This work was supported by NSF Award 1662177.&lt;/p&gt;
description: This publication contains ABAQUS inp files supporting the publication Numerical study on wave propagation in a row of topologically interlocked tetrahedra in Granular Matter (2023), 25 (1)
DOI: 10.4231/a0d2-ty84
title: Atlantic Meridional Overturning Circulation Influence on the Annual Mean Intertropical Convergence Zone Location in the Miocene

description: &lt;p&gt;The Intertropical Convergence Zone (ITCZ) has an annual mean location north of the equator today. The factors determining this location and the evolution to its modern state are actively debated. Here we investigate how the Atlantic Meridional Overturning Circulation (AMOC) influenced the ITCZ during the early-to-middle Miocene. By conducting a paleoclimate modeling sensitivity study to northern high-latitude gateway opening, we show that North Atlantic Deep-Water formation strengthens the AMOC, in alignment with Miocene North Atlantic ventilation proxies. A vigorous AMOC increases northward Atlantic Ocean heat transport, and the cross-equatorial atmospheric energy transport shifts southwards to compensate. This results in a northward shift of the ITCZ, particularly over the Pacific and Atlantic oceans. Our study supports the development of the AMOC as a strong contributor to the ITCZ&#39;s northern location today. Existing proxy-based interpretations of the ITCZ history are broadly consistent with our results but too sparse to strongly confirm or refute them. We predict a strong in-phase relationship between AMOC strength and northward location of the ITCZ, which should be testable in high resolution paleoclimate records.&lt;/p&gt;

&lt;p&gt;The datasets found in &quot;Atlantic Meridional Overturning Circulation Influence on the Annual Mean Intertropical Convergence Zone Location in the Miocene&quot; were generated using the Purdue Supercomputing systems and are simulations from the NCAR Community Climate System Model version 4 (CCSM4), which is an open-source community model and available at: https://www2.cesm.ucar.edu/models/ccsm4.0/. &lt;/p&gt;
description: The ITCZ indices and energetic constraints on the EFEs in our Miocene simulations demonstrate that AMOC initiation pushes the annual mean ITCZ position north of the equator.
DOI: 10.4231/hjem-0108
title: West African Heat Low Climatology and Comparison with Dry Tropical Cyclones

description: &lt;p&gt;Heat lows are low pressure systems have been qualitatively compared to dry tropical cyclones (TCs) given their low-level cyclonic circulation co-located with strong surface sensible heat fluxes. This work examines the climatology of West African heat lows and their relationship to TCs by extending the concept of potential intensity over land. Using ERA5 reanalysis, we calculate potential intensity over land from sensible heat flux and land surface roughness and orography data and use pre-existing data of tracked dry low-pressure systems to create composite West African heat lows during Summer. Potential intensity spatial distribution correlates well with that of heat low tracks and closely matches the peak heat low wind speeds. However, their asymmetric and baroclinic structure and the lack of marked diurnal cycles of maximum wind and minimum pressure in refined heat low composites suggest that West African heat lows are more likely analogous to TC-like baroclinic vortices.&lt;/p&gt;
description: This repository contains the data files and scripts required to recreate the figures for Kruskie et al. 2024 (in review), which examines the climatology of heat lows in West Africa and their relationship to tropical cyclones using potential...