Find research datasets worth reusing

opencc-by-4.0Sep 2024View details →

Data files for "Flash development at sub-pixel resolution with the Geostationary Lightning Mapper"

This depository includes the data files used to produce results in the paper "Resolving sub-pixel flash development with the Geostationary Lightning Mapper." Each lightning mapping array (LMA) file in OKLMA.tar is a text file. Each Earth Networks Total Lightning Network (ENTLN) file in ENTLN.tar is a csv file. Each Geostationary Lightning Mapper (GLM) file in GOES16_GLM.tar is a netcdf file. Oklahoma lightning mapping array data is available from the NOAA National Severe Storms Laboratory website: https://data.nssl.noaa.gov/thredds/catalog/WRDD/OKLMA/catalog.html. Geostationary Operational Environmental Satellite (GOES) data can be accessed through several links found at https://goes-r.nsstc.nasa.gov/home/. We thank Dr. Jeff Lapierre and Earth Networks for free use of ENTLN data for scientific purposes.

opencc-by-4.0Oct 2024View details →

Evolution of mate harm resistance in females from Drosophila melanogaster populations selected for faster development and early reproduction

These images are part of the study titled "Evolution of mate harm resistance in females from Drosophila melanogaster populations selected for faster development and early reproduction". The study uses thorax length of study fruit flies as a measure of body size. The images are of the individual fruit fly thorax. These images are used on ImageJ to measure thorax length. The details of the method can be found in the manuscript, which is now accepted for publication in the Journal of Evolutionary Biology. The same can also be found in a <a href="https://doi.org/10.1101/2022.12.25.521905">pre-print</a> version.  The abstract of the article is mentioned below:    Abstract Interlocus sexual conflict is predicted to result in sexually antagonistic coevolution between male competitive traits, which are also female-detrimental, and mate harm resistance (MHR) in females. Little is known about the connection between life-history evolution and sexually antagonistic coevolution. Here, we investigated the evolution of MHR in a set of experimentally evolved populations, where mate-harming ability has been shown to have substantially reduced in males as a correlated response to the selection for faster development and early reproduction. We measured mortality and fecundity of females of these populations and those of their matched controls, under different male exposure conditions. We observed that the evolved females were more susceptible to mate harm - suffering from significantly higher mortality under continuous exposure to control males within the twenty-day assay period. Though these evolved females are known to have shorter lifespan, substantially higher mortality was not observed under virgin and single-mating conditions. We used fecundity data to show that this higher mortality in the experimentally evolved females was not due to the cost of egg production, and hence can only be attributed to reduced MHR. Further analysis indicated that this decreased MHR is unlikely to be due purely to the smaller size of these females. Instead, it is more likely to be an indirect experimentally evolved response attributable to the changed breeding ecology, and/or male trait evolution. Our results underline the implications of changes in life history traits, including lifespan, to the evolution of MHR in females.

opencc-by-4.0Oct 2024View details →

Depth and Number of added SWAPs for newly developed routing code for QAOA quantum circuits

We developed a qubit routing algorithm with polynomial classical run time for the Quantum Approximate Optimization Algorithm (QAOA). The algorithm follows a two step process. First, it obtains a near-optimal solution, based on Vizing's theorem for the edge coloring problem, consisting of subsets of the interaction gates that can be executed in parallel on a fully parallelized all-to-all connected QPU. Second, it proceeds with greedy application of SWAP gates based on their net effect on the distance of remaining interaction gates on a specific hardware connectivity graph. Our algorithm strikes a balance between optimizing for both the circuit depth and total SWAP gate count. We show that it improves upon existing state-of-the-art routing algorithms for QAOA circuits defined on k-regular as well as Erdös-Renyi problem graphs of sizes up to N≤400. This repository contains data and a ipython notebook used for plotting the results presented in the paper

opencc-by-4.0Nov 2024View details →

Data to estimate energy efficiency and environmental friendliness of Ukrainian GDP from indicators of structural, economic, and social development in Ukraine

Data to estimate regression dependences of energy efficiency and environmental friendliness of GDP from indicators of structural, economic, and social development in Ukraine

opencc-by-4.0Nov 2024View details →

Underrepresented Groups in Open Source Software Development

This repository contains the artifacts generated when researching minority groups in open source software development, which aimed to analyze knowledge about minority groups in OSS projects. This set of artifacts consists of two main components: Research Protocol (PDF): The protocol in PDF format provides a detailed overview of the research design, methodology, and objectives of the study. It describes the scope of the research, research questions, and data collection approach. This protocol is a fundamental reference for researchers interested in understanding how the study was designed. Search Data (CSV): The CSV file contains the raw data collected during the research. The data includes results returned by each database, articles considered in each phase of the study, and the set of seed articles. The XLSX spreadsheet is a source for analyzing the data used in the research. This repository aims to promote a more transparent understanding of the process that guided this research. Researchers and the open source developer community can utilize this dataset for academic studies, replications, and informed decision-making to promote equity and representation in open source projects.

opencc-zeroApr 2020View details →

Data from: Developing and applying a macroinvertebrate‐based multimetric index for urban rivers in the Niger Delta, Nigeria

Urban pollution of riverine ecosystem is a serious concern in the Niger Delta region of Nigeria. No biomonitoring tool exists for the routine monitoring of effects of urban pollution on riverine systems within the region. Therefore, the aim of this study was to develop and apply a macroinvertebrate-based multimetric index for assessing water quality condition of impacted urban river systems in the Niger Delta area of Nigeria. Macroinvertebrate and physico-chemical samples were collected from 11 stations in eight river systems. Based on the physico-chemical variables, the stations were categorised into three impact categories namely; least impacted stations (LIS), moderately impacted stations (MIS) and heavily impacted stations (HIS). Seventy seven (77) candidate metrics were tested and only five: Hemiptera abundance, %Coleoptera+Hemiptera, %Chironomidae+Oligochaeta, Evenness index and Logarithm of relative abundance of very large body size (>40-80 mm) were retained and integrated into the final Niger Delta urban multimetric index (MINDU). The validation data set showed a correspondence of 83.3% between the index result and the physico-chemically-based classification for the LIS and a 75% correspondence for the MIS. A performance of 22.2% was recorded for the HIS. The newly developed MINDU proved useful as a biomonitoring tool in the Niger Delta region of Nigeria, and can thus be used by environmental managers and government officials for routine monitoring of rivers and streams subjected to urban pollution.

opencc-zeroFeb 2020View details →

Dynamic changes in DNA methylation during postnatal development in zebra finches (Taeniopygia guttata) exposed to different temperatures

Epigenetic changes associated with early life conditions are known to play a significant role in shaping the adult phenotype. Studies of DNA methylation in wild animals are lacking, yet are important for understanding the fitness consequences of environmentally induced epigenetic change. In our study, we quantified variation in DNA methylation in wild, post-hatch zebra finches Taeniopygia guttata developing at seasonally variable temperatures in the Australian desert. We also compared variation in DNA methylation among captive zebra finch siblings raised in temperature controlled 'hot' or 'cool' rooms. We detected an increase in genome-wide levels of DNA methylation between day 3 and day 11 of post hatch development in wild zebra finches. In the wild, ambient temperatures were also found to affect genome-wide levels of DNA methylation and plasticity in the methylation state of individual loci. Family effects had a significant influence on DNA methylation throughout our study, and while we did not detect an effect of temperature on DNA methylation levels in non-related captive birds, our sibling pair analyses revealed that within families, elevated temperatures were associated with higher levels of DNA methylation. Our findings suggest a wide window in early development during which climatically induced variation in DNA methylation could occur. Further work is necessary to understand the potential for such variation to promote ecologically relevant variation in wild birds.

opencc-zeroAug 2019View details →

Data from: Usefulness and limitations of thermal performance curves in predicting ectotherm development under global change

1. Thermal performance curves (TPCs) have been estimated in multiple temperate ectotherm species and used to predict the effect of global warming. However, TPCs are typically assessed under constant temperature regimes, so their reliability for predicting thermal responses in the wild where temperature fluctuates diurnally and seasonally remains poorly documented. 2. Here we use distant latitudinal populations of five species of sepsid flies (Diptera: Sepsidae) from the temperate region (Europe, North Africa, North America) to compare estimates derived from constant TPCs with observed development rate under fluctuating temperatures in laboratory and field conditions. 3. TPCs changed across gradients in that flies originating from higher latitudes or altitudes showed accelerated development, an adaptive response. TPCs were then used to predict development rates observed under fluctuating temperatures; these predictions were relatively accurate in the laboratory but not in the field. Interestingly, the precision of TPC-predictions depended not only on the resolution of temperature data, with diurnal and overall temperature summing performing better than hourly temperature summing, but also on the frequency of temperatures falling below the estimated critical minimum temperature. Hourly temperature resolution most strongly underestimated actual development rates, because flies apparently either did not stop growing when temperatures dropped below this threshold, or they speed up their growth when the temperature rises again, thus most severely reflecting this error. 4. We conclude that when flies do not encounter cold temperatures, TPC-predictions based on constant temperatures can accurately reflect performance under fluctuating temperatures if adequately adjusted for non-linearities, but when they encounter cold temperatures this method is more error-prone. 5. Our study emphasizes the importance of the resolution of temperature data and cold temperatures in shaping thermal reaction norms, thus improving predictions of the responses of ectotherms to climate change in the age of big data and citizen science.

opencc-zeroJun 2021View details →

Development of tools to rapidly identify cryptic species and characterize their genetic diversity in different European kelp species

Marine ecosystems formed by kelp forests are severely threatened by global change and local coastline disturbances in many regions. In order to take appropriate conservation, mitigation and restoration actions, it is crucial to identify the most diverse populations which could serve as a "reservoir" of genetic diversity. This requires the development of specific tools, such as microsatellite markers to investigate the level and spatial distribution of genetic diversity. Here, we tested new polymorphic microsatellite loci from the genome of the kelp, Laminaria digitata, and tested them for cross-amplification and polymorphism in four closely related congeneric species (Laminaria hyperborea, Laminaria ochroleuca, Laminaria rodriguezii and Laminaria pallida). Adding these 20 new microsatellite loci to the ten L. digitata loci previously developed by Billot et al. (1998) and Brenan et al. (2014) and to the ten L. ochroleuca loci previously developed by Coelho et al. (2014), we retained a total of 30 polymorphic loci for L. digitata, 19 for L. hyperborea, 16 for L ochroleuca, 19 for L. rodriguezii and 12 for L. pallida. These markers have been tested for the first time in the last two species. As predicted, the proportion of markers that cross-amplified between species decreased with increasing genetic distance. In addition, as problems of species identification were reported in this genus, mainly between L. digitata and Hedophyllum nigripes, but also between L. digitata, L. hyperborea and L. ochroleuca in areas where their range distributions overlap, we report a rapid PCR identification method based on species-specific cox1 mitochondrial primers that allows these four species of kelp to be rapidly distinguished.

Provenance of luca App development.

Provenance documents in <a href="https://www.w3.org/Submission/prov-json/">PROV-JSON</a> format of the <a href="https://gitlab.com/lucaapp">luca App GitLab repositories</a>. Retrieved on June 22nd, 2021 using <a href="https://github.com/DLR-SC/gitlab2prov">GitLab2PROV</a> Version 0.5. Commands: <pre><code class="language-bash">gitlab2prov -t <GitLab API-Key> -f json -r 1000 -p https://gitlab.com/lucaapp/web > lucaapp-web.json gitlab2prov -t <GitLab API-Key> -f json -r 1000 -p https://gitlab.com/lucaapp/ios > lucaapp-ios.json gitlab2prov -t <GitLab API-Key> -f json -r 1000 -p https://gitlab.com/lucaapp/web-crypto > lucaapp-web-crypto.json gitlab2prov -t <GitLab API-Key> -f json -r 1000 -p https://gitlab.com/lucaapp/android > lucaapp-android.json gitlab2prov -t <GitLab API-Key> -f json -r 1000 -p https://gitlab.com/lucaapp/security-overview > lucaapp-security-overview.json gitlab2prov -t <GitLab API-Key> -f json -r 1000 -p https://gitlab.com/lucaapp/badge-generator > lucaapp-badge-generator.json gitlab2prov -t <GitLab API-Key> -f json -r 1000 -p https://gitlab.com/lucaapp/cwa-event > lucaapp-cwa-event.json gitlab2prov -t <GitLab API-Key> -f json -r 1000 -p https://gitlab.com/lucaapp/fdroid-repository > lucaapp-fdroid-repository.json </code></pre>

Effects of the treatments by synthetic strigolactone (SL) and SL-enriched biostimulant on tomato fruit development.

Strigolactones (SLs) are a class of plant hormones with various functions in plant development and in the interaction with (micro) organisms in the rhizosphere. As developmental regulators the SLs control above- and below-ground morphology, the inhibition of shoot branching, the modulation of the root morphology and the promotion of the shoot secondary growth.  It follows that SL-depleted or insensitive plants show an altered morphology (stunted and bushy), a prolongate vegetative development and a delayed in reproductive transition. This latter aspect leads to a reduced number of flowers fruits and seeds in Solanum lycopersicum. To know the effects of an excess of SLs on the reproductive phenotype in tomato we analyzed the results of the exogenous treatments with rac-GR24, a synthetic strigolactone and with a biostimulant SL-enriched produced by StrigoLab. Preliminary data indicate that the treated plants show a preponed flowering and an earlier harvestable fruit compared to mock-treated plants.

Replication package for "An Empirical Study of Q&A Websites for Game Developers"

Replication package for the paper "An Empirical Study of Q&A Websites for Game Developers" This repository contains the datasets and scripts used to replicate the results from the paper "An Empirical Study of Q&A Websites for Game Developers". This is an exact copy of the repository on GitHub: https://github.com/asgaardlab/done-21-arthur-gamedev_qa_websites-code Replication data The datasets used to replicate the results for the paper can be found in the data directory (data/). These are the datasets we obtained after running all of the notebooks in this repository. Two of the studied websites are owned by companies (Epic and Unity) and we are not legally allowed to share the textual contents of the questions and answers as they are considered intellectual property. Therefore, instead of sharing the content of those posts, we included the URLs to all of the pages where the information used in the paper can be found, so that they can be crawled by future researchers. This is not an issue for Stack Overflow and the Game Development Stack Exchange, since that data is provided by Stack Exchange in the Stack Exchange Data Dump (https://archive.org/details/stackexchange). Survey data: Unfortunately, our University's ethics board only allows us to share the survey responses in aggregated format, which is done in the paper. In this repository, we added the list of communities in which we shared the survey (data/surveyed_communities.csv). Using this repository If you are using the datasets provided in this repository, you just need to run the analysis notebook (code/analysis/paper_results.ipynb) to obtain the results as shown in the paper. Otherwise, if you want to run the whole pipeline from scratch, follow these steps: 1. Download the data from Unity Answers and the UE4 AnswerHub from their websites (you can use the URLs provided in our datasets). Parse the HTML pages and extract the required information. 2. Download the data from Stack Overflow and the Game Development Stack Exchange from the Stack Exchange Data Dump (https://archive.org/details/stackexchange). Run the notebooks to process the XML files from the Stack Exchange data dump (code/process_xml). For Stack Overflow, run the select_gamedev_posts.ipynb (code/process_xml/stackoverflow/select_gamedev_posts.ipynb) first. 3. Run the text processing notebook (code/text_processing.ipynb). 4. Run the topic modelling notebook (code/topic_modelling.ipynb). 5. Run the topic comparisons notebook (code/topic_comparisons.ipynb). 6. Finally, run the analysis notebook (code/analysis/paper_results.ipynb) to get the results as shown on the paper.

Dataset from: Limb development in skeletally-immature large-sized dogs: a radiographic study

Dataset from the publication: "Limb development in skeletally-immature large-sized dogs: a radiographic study", published in PLoS ONE, 2021. Despite the extreme morphological variability of the canine species, data on limb development are limited and the time windows for the appearance of the limb ossification centres (OCs) reported in veterinary textbooks, considered universally valid for all dogs, are based on dated studies. The aim of this study was to acquire up-to-date information regarding the arm, forearm and leg bone development in skeletally-immature large-sized dogs from 6 weeks to 16 weeks of age. Nine litters of 5 large-sized breeds (Boxer, German Shepherd, Labrador Retriever, Saarloos Wolfdog, White Swiss Shepherd Dog) were included, for a total of 54 dogs, which were subject to clinical and radiographic examination on a bi-weekly basis. The appearance of 18 limb OCs was recorded and 14 radiographic measurements were performed; their relationship with age and body weight was investigated and any breed differences were analysed.

Dataset for article Development of Vancomycin Delivery Systems Based on Autologous 3D Platelet-Rich Fibrin Matrices for Bone Tissue Engineering

This is a dataset related to the article "Development of Vancomycin Delivery Systems Based on Autologous 3D Platelet-Rich Fibrin Matrices for Bone Tissue Engineering". Dubnika, A.; Egle, K.; Skrinda-Melne, M.; Skadins, I.; Rajadas, J.; Salma, I.

The Future of Compulsory Schooling: Participant developed scenarios from a Modified Delphi Survey

This paper describes results from a modified Delphi process that has been informed by research into anticipatory systems to design an approach that is responsive to a future world which is uncertain and in rapid change. We present five scenarios that describe preferred futures for the design of compulsory schooling and addresses the overall, counterfactual, research question, “What if compulsory schooling was a 21st century invention?” The scenarios have been developed by participants as the last round in the modified Delphi process, utilising a set of statements created in the earlier rounds. This scenario development round describes a novel use of the modified Delphi process in addition to the previous rounds that were used to determine more traditional Delphi results in terms of consensus and dissensus.  The attachments provide an annexure with additional information about the Expert panel as well as a complete list of statements from the modified Delphi process.

DEVELOPMENT OF AN INNOVATIVE PROCESS INVOLVING THE USE IONIC LIQUIDS FOR THE RECOVERY AND PURIFICATION OF RARE EARTH FROM PERMANENT MAGNETS AND NiMH BATTERIES

Experimental data

opencc-by-4.0May 2021View details →

Perception of Mixed-Reality Shopping Assistant System to develop Design Principles : Interview Transcripts (MRDP)

The dataset is a collection of transcripts where  35 participants were interviewed to collect users’’ feedback and perceptions about the mixed-reality MR shopping assistant system. The interviews were a part of the research where a personal shopping assistance system based on optical see-through mixed-reality (MR ) technology was designed. Microsoft HoloLens 2 was leveraged as the archetype to realize this novel system to facilitating consumer information search and decision making. The design incorporated various shopping assistance elements (i.e., product information, reviews, recommendations, product availability, videos, a virtual cart, and an option to buy). Users can interact with these elements with gesture-based inputs to navigate through the interface. Derived from the qualitative feedback from the 35 participants, we proposed six design principles that aim to support future designs and developments of mixed-reality MR shopping applications for head-mounted displays in omnichannel retail: Rigor, Informativeness, Tangibility, Summary, Comparability and Holism.

Digesta and Plasma Metabolomics of Rainbow Trout Strains with Varied Tolerance of Plant-Based Diets Highlights Potential for Non-Lethal Assessments of Enteritis Development

The replacement of fishmeal in aquafeeds is essential to the sustainability of aquaculture. Besides the procurement of alternative protein sources, fish can also be selected for better performance on plant-based alternative diets. Rainbow trout (Oncorhynchus mykiss) is one such species in which the strain ARS-Selhas been selected for higher growth and enhanced utilization when fed soy-based diets. The aim of this study was to compare fish growth, and plasma and digesta metabolomes between the ARS-Seland two commercial strains (CS-1 and CS-2), when fed a plant-protein diet (PM) and a fishmeal-based diet (FM) and correlate them with the onset of enteritis. An NMR-metabolomics approach was taken to assess plasma and digesta metabolite profiles. Diet and strain showed significant effects on fish growth, with the ARS-Selfish receiving the PM diet reaching the highest final weight at sampling. Multivariate analysis revealed differences between plasma metabolite profiles of ARS-Seland CS (CS-1 considered together with CS-2) PM-fed groups in the early stages of the enteritis development, which was confirmed by a histological approach. In digesta, no differences were observed between groups. As reported in previous studies the ARS-Selstrain performed better than the commercial strains when fed the PM diet.

RNASeq fastq files associated with the manuscript entitled 'Interspecies transcriptome analyses identify genes that control the development and evolution of limb skeletal proportion'

This next-generation sequencing dataset is associated with the research manuscript entitled ‘Interspecies transcriptome analyses identify genes that control the development and evolution of limb skeletal proportion’ (https://www.biorxiv.org/content/10.1101/754002v2). The folder ‘Zenodo_Saxena_etal_2021_RNASeq_FastqFiles’ contains raw/unprocessed RNASeq Fatsq read files for postnatal day 5 (P5) mouse (Mus) and jerboa (Jac) cartilage samples (Metatarsal = MT; Radius/Ulna = RU). > The Jac_P5 subfolder contains single-end reads (R1) for five jerboa metatarsals (MT1-5) and radius/ulna (RU1-5) biological replicates. Jac_MT1-3 and Jac_RU1-3 were used in the primary differential expression analysis (n=3). Jac_MT4-5 and Jac_RU4-5 were used for independent validation (n=2) of the the primary analysis.    > The Mus_P5 subfolder contains single-end reads (R1) for five mouse metatarsals (MT1-5) and radius/ulna (RU1-5) biological replicates. Mus_MT1-3 and Mus_RU1,3 & 4  were used in the primary differential expression analysis (n=3). Mus_MT4-5 and Mus_RU4 & 5 were used for independent validation (n=2) of the the primary analysis.

Panel: "Broken for All:: The case for persistent identifiers for digital cultural heritage resources AND Developer Track Session 2

This video contains two sessions from Open Repositories 2021: Panel: "Broken for All": the case for persistent identifiers for digital cultural heritage resources Turner, Adrian (1); Holmes-Wong, Deborah (2); Rafique, Zahid (2); Kunze, John (1); Lohnash, Megan (3); McKinley, Matthew (4), Lund, Allison (5) 1: California Digital Library; 2: University of Southern California Libraries; 3: California Revealed; 4: Omeka; 5: Metropolitan New York Library Council  Cultural heritage institutions within the United States have made significant investments in building unique digital collections, broadly disseminating them on the web and through networks such as the Digital Public Library of America (DPLA). The items within these collections are referenced and cited in a range of sources -- from Wikipedia and scholarly articles, to archival finding aids and classroom lesson plans. However, the application of persistent identifier schemes (e.g. DOI, ARK) for unique digital resources is relatively uncommon within the gallery, library, archive, and museum communities. Relatedly, many repositories and digital asset management systems (DAMS) widely used in these communities simply do not support persistent identifier schemes "out of the box." Hence, the URLs for the items are extremely fragile. If the collections are migrated to a different repository, the URLs can easily break -- impacting downstream networks, confounding researchers, and compounding the problem of link rot. This panel will discuss the critical role of persistent identifiers in digital collections management and dissemination and some of the challenges in applying them. It will feature case studies demonstrating how commonly-available licensed and open-source repositories can be adapted to support them. Developer Track Session 2: Constructing a Repository Test Strategy Built on Docker Containers Brady, Terrence W California Digital Library, United States of America The Merritt Digital Preservation system comprises a dozen microservices and supporting services. Our team found that it was not cost effective to maintain and patch a fleet of servers to support a development environment. Our solution was to replace our development server environment with a stack of dockerized services. Once the stack was containerized, we discovered that we were able to create 3 variants of our development stack with different persistence strategies for database content and cloud storage. With these variants, the team has been able to support a variety of testing scenarios. Deploying a Serverless Application as a Docker Image Brady, Terrence W California Digital Library, United States of America A serverless application consists of a defined runtime (such as Ruby 2.7 or Python 3) and a package of code. This presentation will illustrate 3 types of code packages of different complexity and will describe the challenges of bundling more complicated dependencies such as binary files. In December 2020, the AWS Lambda serverless architecture began to support Docker images as a deployment package. This packaging approach makes it possible to run tests against a code package before it is deployed. This presentation will demonstrate the test and deployment process for a serverless application within the Merritt digital preservation system. Other repository teams hosting their applications on AWS may discover some useful patterns for testing and deploying serverless code to AWS Lambda. Live Demo: Create a Developer Workspace Challenge Pottinger, Hardy Joseph California Digital Library, University of California, Office of the President, United States of America Creating a developer workspace, a place in which you can write and test your code, can seem a daunting task. Sure, someone might have done it before, and they might even share their notes with you, but following those notes and arriving in the same place is like following a treasure map and expecting to get rich. There’s a better way, and I’m willing to prove it. This demo aims to show the process one goes through to craft a development environment with pretty much any tool, but will use Lando to conserve time. Lando is a way to bootstrap a useable development environment. It's built on Docker, and is like Docker-Compose, but much more transparent. It handles the boring details and helps you actually start developing with code in your favorite IDE, and all the services you need in Docker. It's all about making the life of a developer easier. It won't give you an application container you can deploy, but you will develop a deeper understanding of how all the pieces fit together, and you'll have a tool which can deploy those pieces to dev/stage/prod if you wish. The audience will participate in this demo. Building Scalable Serverless Digital Repositories using Amplify Open-source Framework Chen, Yinlin; Jiang, Tingting; Hunter, Lee Virginia Tech, United States of America We develop digital repositories to disseminate different types of digital content and to promote the principles of open access. Our goal is not to provide access to information to just one individual institution or group but to anyone and everyone. With that ambitious goal in mind, how do we enable our digital repositories to have the high availability and flexible scaling capabilities necessary to face unforeseen demand? How do we utilize only the resources we need without the waste of overprovisioning resources? These are some of the most challenging issues that we face. To achieve our goals, we moved from the traditional monolithic, server-based approach to serverless cloud infrastructure. By leveraging the services that AWS provides we have been able to boost the performance of our repositories 10x compared to that of our previous implementation that was hosted in-house. Our repositories now automatically scale up and down to meet any kind of traffic demands, without our intervention. In this talk, we will demonstrate our scalable serverless digital repositories and show the opportunities to explore and reflect on the ways that repositories enable openness for all.