These files contain the raw data and processing parameters to go with the paper "Hierarchical structure guides rapid linguistic predictions during naturalistic listening" by Jonathan R. Brennan and John T. Hale. These files include the stimulus (wav files), raw data (matlab format for the Fieldtrip toolbox), data processing paramters (matlab), and variables used to align the stimuli with the EEG data and for the statistical analyses reported in the paper.
Brennan JR, Hale JT (2019) Hierarchical structure guides rapid linguistic predictions during naturalistic listening. PLoS ONE 14(1): e0207741. https://doi.org/10.1371/journal.pone.0207741
We present a comprehensive statistical analysis of high-frequency transient-large-amplitude
(TLA) magnetic perturbation events that occurred at 12 high-latitude ground magnetometer
stations throughout solar cycle 24 from 2009 to 2019. TLA signatures are defined as one or
more second-timescale dB/dt interval with magnitude ≥ 6 nT/s within
an hour event window. This study characterizes high-frequency TLA events based on their spatial
and temporal behavior as well as relation to auroral substorms, geomagnetic storm phases and
nighttime geomagnetic disturbance events events (GMD). We show that TLA events occur primarily
at nighttime and solely in the high-latitude region above 60 degrees geomagnetic latitude. The
largest TLA events occurred more often in the declining phase of the solar cycle when solar
wind velocity was higher and ring current activity was lower, suggesting association to
high-speed flows caused by coronal holes and subsequent corotating interaction regions reaching
Earth. TLA perturbations often occurred preceding or within the most extreme nighttime
geomagnetic disturbance (GMD) events with 5-10 minute timescales, but the TLA intervals were
often even more localized than the ~300 km effective radius of GMDs:
occurring at only some of the stations at which GMDs occurred. We show that TLA-related GMD
events can result from dipolarization fronts in the magnetotail and fast flows toward Earth
and are closely temporally associated to poleward boundary intensifications (PBI) and auroral
streamers. The highly localized behavior and connection to the most extreme GMD events suggests
that TLA intervals are a ground manifestation of the features within rapid and complex
ionospheric structures that can drive GICs.
McCuen, B. A., Moldwin, M. B., Engebretson, M. J., Weygand, J. G., Nishimura, Y. (2023). A Statistical Analysis of High-frequency Transient-Large-Amplitude Geomagnetic Disturbance. [To be submitted to] Journal of Geophysical Research: Space Physics
Research Overview:
In situ magnetic field measurements are often difficult to obtain due to the presence of stray magnetic fields generated by spacecraft electrical subsystems. The conventional solution is to implement strict magnetic cleanliness requirements and place magnetometers on a deployable boom. However, this method is not always feasible on low-cost platforms due to factors such as increased design complexity, increased cost, and volume limitations. To overcome this problem, we propose using the Quad-Mag CubeSat magnetometer with an improved Underdetermined Blind Source Separation (UBSS) noise removal algorithm. The Quad-Mag consists of four magnetometer sensors in a single CubeSat form-factor card that allows distributed measurements of stray magnetic fields. The UBSS algorithm can remove stray magnetic fields without prior knowledge of the magnitude, orientation, or number of noise sources. UBSS is a two-stage algorithm that identifies signals through cluster analysis and separates them through compressive sensing. We use UBSS with single source point (SSP) detection to improve the identification of noise signals and iteratively-weighted compressed sensing to separate noise signals from the ambient magnetic field. Using a mock CubeSat, we demonstrate in the lab that UBSS reduces four noise signals producing more than 100 nT of noise at each magnetometer to below the expected instrument resolution (near 5 nT). Additionally, we show that the integrated Quad-Mag and improved UBSS system works well for 1U, 2U, 3U, and 6U CubeSats in simulation. Our results show that the Quad-Mag and UBSS noise cancellation package enables high-fidelity magnetic field measurements from a CubeSat without a boom.
Hoffmann, A. P., Moldwin, M. B., Strabel, B. P., & Ojeda, L. V. (2023). Enabling Boomless CubeSat Magnetic Field Measurements with the Quad-Mag Magnetometer and an Improved Underdetermined Blind Source Separation Algorithm. Journal of Geophysical Research: Space Physics, 128, e2023JA031662. https://doi-org.proxy.lib.umich.edu/10.1029/2023JA031662
As part of a larger research study on social sustainability and human rights, this research examines the supplier codes of conduct lead firms adopt to achieve their social supply chain sustainability goals.
Cao, Y., Lawson, B., & Pil, F. K. (2023). Social sustainability and human rights in global supply chains, International Journal of Operations & Production Management, Vol. ahead-of-print No. ahead-of-print. https://doi.org/10.1108/IJOPM-10-2022-0670.
These files contain the raw data and processing parameters to go with the paper "Hierarchical structure guides rapid linguistic predictions during naturalistic listening" by Jonathan R. Brennan and John T. Hale. These files include the stimulus (wav files), raw data (BrainVision format), data processing parameters (matlab), and variables used to align the stimuli with the EEG data and for the statistical analyses reported in the paper (csv spreadsheet).
and Updates in Version 2:
- data in BrainVision format
- added information about data analysis
- corrected prePROCessing information for S02
Brennan, J. R., & Hale, J. T. (2019). Hierarchical structure guides rapid linguistic predictions during naturalistic listening. PLoS ONE 14(1). e0207741
This is the model and observational data referenced in our manuscript entitled “surface and sub-subsurface internal gravity wave kinetic energy spectra from global ocean models and observations.” The model data for the 7 regions from the two global simulations (HYCOM and MITgcm) can be found here.
Each "work" in this collection is a set of documentary-style videos in mp4 (m4v) format. The initial (2023) set of works is as follows: "farming and plant gathering (Mali mp4)", "construction and boatbuilding (Mali mp4)", "fishing (Mali mp4)", "food and beverage preparation (Mali mp4)", metalwork and woodwork (Mali mp4)", "cultural events (Mali mp4)", "firearms and gunpowder (Mali mp4)", "pottery (Mali mp4)", and "weaving and dyeing (Mali mp4)". Funding: National Science Foundation, Documenting Endangered Languages program. The readme's for each work give further details. Additional works with new videos may be added in the future.
See also the Deep Blue Data collections "Burkina Faso documentary videos" and "Central Mali documentary videos". The latter contains Mali videos archived in 2018.
This is a collection of mostly short documentary-style videos related to linguistic fieldwork in southwestern Burkina Faso. The initial batch consists of videos produced in 2023, and others will be added. Versions of some of these videos overdubbed in native languages will also be produced for local consumption in Burkina. Most of the videos document everyday practical activities; some also feature useful native plants and insects. This collection is parallel to collections of videos from neighboring Mali: see "Central Mali documentary videos" (with documentaries produced up to 2018) and "Mali documentary videos from 2023 on" for the newer ones. A small collection from north-central Côte d'Ivoire is also in the works. Within each collection, the videos are organized into "works" based on the general type of activity documented.
This research was completed to statistically validate that a data-model refinement technique could integrate real measurements to remove bias from physics-based models via changing the forcing parameters such as the thermal conductivity coefficients.
Ponder, B. M., Ridley, A. J., Goel, A., & Bernstein, D. S. (2023). Improving forecasting ability of GITM using data-driven model refinement. Space Weather, 21, e2022SW003290. https://doi.org/10.1029/2022SW003290
Single molecule data and analysis code for Figure4 in the paper titled: "A rhythmically pulsing leaf-spring DNA-origami nanoengine that drives a passive follower".
Follow the readme file for deiails.
This data set is my analysis of data management plans (DMPs) that were written by researchers at the University of Michigan for awards made between March 2020 and February 2021. I conducted this analysis to explore the potential utility of DMPs as a tool to aid data curators in understanding and working with the associated data set. Variables collected include: the types and formats of the expected data sets, information about the metadata and documentation to be generated, the anticipated methods for making the data set publicly available, references to Intellectual Property allowances or concerns, and the stated duration for preserving the data sets.
Carlson, J. (2023) Untapped Potential: A Critical Analysis of the Utility of Data Management Plans in Facilitating Data Sharing. Journal of Research Administration. Fall 2023. Forthcoming.
As part of the Flaring & Fossil Fuels: Uncovering Emissions & Losses (F3UEL) project, in 2022 the aircraft measurement platform sampled offshore oil & gas facilities in the US Gulf of Mexico to quantify facility-level emissions using the approach detailed in Conley et al. (2017). Vertical profiles were conducted on each flight to capture the vertical structure and mixing depths of the atmosphere. The data file contains all merged flight data from each flight day.
Reference: Conley, S., Faloona, I., Mehrotra, S., Suard, M., Lenschow, D. H., Sweeney, C., Herndon, S., Schwietzke, S., Pétron, G., Pifer, J., Kort, E. A., and Schnell, R.: Application of Gauss’s theorem to quantify localized surface emissions from airborne measurements of wind and trace gases, Atmos. Meas. Tech., 10, 3345 – 3358, 2017.
Data used in the paper "Theory of Magnetic Switchbacks Fully Supported by Parker Solar Probe Observations" by G. Toth, M. Velli and B. van der Holst, ApJ 2023.
The Observations directory contains the PSP observations as simple text files that can be easily read by the IDL macros in the BATSRUS/share/IDL/General/ or any other plotting software.
The Simulations directory contains BATSRUS simulations including input and output files. The runlog files show the Git references. The output files are in binary format that can be read by the IDL macros in the BATSRUS/share/IDL/General/ or with the SpacePy software.
The BATSRUS directory contains the source code that can be used to reproduce the simulations.
G. Toth, M. Velli, B. van der Holst, 2023, Theory of Magnetic Switchbacks Fully Supported by Parker Solar Probe Observations, The Astrophysical Journal, in press
The goal here is to study the voltage and expansion response of lithium-ion batteries at different charging rates. Specifically, the goal is to capture the observation of the smoothing of the peaks in dV/dQ and retention of the peaks in d^2 (backslash)delta/dQ^2 at higher C-rates. The retention of the peaks at higher charging rates enables better estimation of the cell capacity. To achieve this goal a reduced order electrochemical and mechanical model with multiple particles with a size distribution is developed. This allows us to capture the smoothing and preservation of the phase transitions in the voltage and expansion measurements at high C-rates, respectively. The model is written in Matlab software.
Mohtat, P., Lee, S., Sulzer, V., Siegel, J. B., & Stefanopoulou, A. G. (2020). Differential Expansion and Voltage Model for Li-ion Batteries at Practical Charging Rates. Journal of The Electrochemical Society, 167(11), 110561. https://doi.org/10.1149/1945-7111/aba5d1
The research reported here is part of a larger study where we recruited students from the entering undergraduate classes in 2016, 2017, 2018 and 2019 at Rice University. The aim of the larger project is to examine the evolution of economic preferences (altruism, risk aversion, time preference, competitiveness, loss aversion, in-group favoritism, among others) across their college years. Subjects participated in numerous laboratory and online studies between matriculation and 2021. This paper uses data from the experimental design of a subset of tasks that subjects completed. The survey wave used in this paper was collected in June and July of 2021. This survey was composed of fifteen modules and had a total of 710 participants. and The survey consisted of 15 modules. Module 1 consisted of questions on COVID-19 related behavior and future expectations of the COVID-19 pandemic. Module 2 consisted of an emotion elicitation task. Module 3 solicited trust levels of several authorities and news outlets. Module 4 consisted of several general socioeconomic preference questions. Module 5 asked questions related to how frequently subjects provide various forms of help. Module 6 solicited social appropriateness ratings regarding COVID-19 preventative behavior. Module 7 consisted of an estimation task. Module 8 was the dictator game with the freshmen recipient. Module 9 involved a risky investment decision task. Module 10 was the dictator game with the same-class recipient. Module 11 involved a trust-game. Module 12 was the dictator game with charity as the recipient. Module 13 asked questions regarding help received by the university as well as COVID-19 academic impact. Module 14 included questions regarding the subjects’ COVID-19 infection status. Module 15 posed questions regarding subjects’ resiliency. Only modules 8, 10, and 12 were used in this analysis. These corresponded to Q11 - Q18 of the instrument. In each module, subjects played a dictator game, guessed what others did in the game and played a coordination game designed to elicit norms for the dictator game they just played. After the subject completed the survey, we randomly selected a module for payment. Subjects then received an email alerting the subject which module was selected for payment and how much money they would receive given their responses in the selection module. Data was analyzed using STATA; if running the do file for STATA, and not already installed, then add ""capture ssc install estout" to the very top of the .do file.
Hurricane Ike, which struck the United States in September 2008, was the ninth most expensive hurricane in terms of damages. It caused nearly $30 billion in damage, of which nearly $12B were insured losses, after making landfall on the Bolivar Peninsula, Texas. We used the Delft3d-FM/SWAN hydrodynamic and spectral wave model to simulate the storm surge inundation around Galveston Bay during Hurricane Ike. Damage curves were established through the eight hydrodynamic parameters (water depth, flow velocity, unit discharge, flow momentum flux, significant wave height, wave energy flux, total water depth (flow depth plus wave height), and total (flow plus wave) force) simulated by the model. We found that the damage curves are sensitive to the model grid resolution, building elevation, and the number of stories.
Citation to related publication:
Xu et al. (2023). Damage curves derived from Hurricane Ike in the west of Galveston Bay based on insurance claims and hydrodynamic simulations.
Documentary videos of pottery making, notably a four-part documentary of one potter's work. Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos of pressing oil from seeds of native plants. Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos of blacksmiths and carpenters (see also the work "construction and boatbuilding"). Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos of food and beverage production by Bozo and Dogon people. Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos showing fishing techniques chiefly of Bozo people (plus some Dogon). Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos of construction of a granary and building a large skiff (boat). Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos of farming and of foraging for useful native plants. Credits are at the end of videos. Additional documentaries from Mali may be added later.
Documentary videos showing food and beverage preparation in SW Burkina Faso. Credits at end of videos. Additional documentaries from Burkina may be added later.
documentary video of small-scale artisanal gold digging in SW Burkina Faso. Credits are at the end of videos. Additional documentaries from Burkina may be added later.
Documentary videos of metalwork (blacksmiths) and woodwork from Burkina Faso. Credits are at the end of videos. Additional documentaries from Burkina may be added later.
Occasional videos involving native insects of SW Burkina Faso. Credits are at the end of videos. Additional documentaries from Burkina may be added later. See also the "bees ..." work in this collection.
Videos featuring native plants of Burkina Faso. Credits are at the end of videos. Additional documentaries from Burkina may be added later. Images of native plants will be in a distinct collection.
Five-part documentary on making apiaries and collecting honey. Vigué ethnicity, Viemo language. location: near Karangasso-Vigué, southwestern Burkina Faso. credits at end of videos. Other documentaries from Burkina may be added later.
Documentation of Dogon fox-track divination, a Dogon memorial altar, and a Bozo boat race. Credits are at the end of videos. Additional documentaries from Mali may be added later.
images of plants, in nature or specimens, of family Zygophyllaceae, including Balanites ("wild date" tree). Only Balanites and Tribulus terrestris are common in Central Mali.
images of plants, in nature or specimens, of family Rhamnaceae. The local genus is Ziziphus (jujube), of which Z. mauritiana has the most edible fruits, but is being supplanted by the introduced and planted Z. jujuba. In the wild, Z. mucronata is the other common species. Z. abyssinica was collected on the summit of Tabi mountain near Boni, Z. spina-christi occurs in deep floodplains in the Djenné area, and Z. lotus is a Saharan species.
images of plants, in nature or specimens, of family Solanaceae. Solanum nigrum and S. americanum belong to a tighly knit group whose taxonomy is unstable. Fruits of S. incanum and green fruits of S. nigrum/americanum are toxic. Datura spp. are narcotic. Capsicum spp. are chili peppers (and bell peppers). Solanum tuberosum is cultivated potato. Cultivated tomato is Solanum lycopersicum (or Lycopersicon esculentum). Cultivated tobacco is modern Nicotiana tabacum and the more traditional Nicotiana rustica.
images of plants, in nature or specimens, of family Plantaginaceae (sometimes called Veronicaceae). This family was recently separated from Scrophulariaceae (sensu lato), and taxonomy of these families remains unstable. Scoparia is an important medicinal plant.
images of plants, in nature or specimens, of family Fabaceae, subfamily Faboideae, genera T to Z. Vigna unguiculata is cultivated cowpea (the local "beans"). Vigna subterranea (ex Vouandzeia) is cultivated groundnut (resembles peanut but harder).
Mobile obstetric emergency system (MORES) is a promising intervention to enhance communication between rural health facilities and hospitals and to improve maternal and newborn outcomes.
Lee, H., Dahn B., Sieka, J., Nyanplu, A., Reynolds, C., Edson, C., Lockhart, N., & Lori, J. The use of a mobile obstetric emergency system (MORES) to improve obstetric referrals in Bong County, Liberia: A pre/post study. International Journal of Gynecology & Obstetrics. (2023) http://doi.org/10.1002/ijgo.15175
images of flora from nature or of specimens, family Cucurbitaceae . There are some difficulties involving determinations of wild melons with protrusions (horns), Cucumis pustulatus/metuliferus/prophetarum. Cultivated spp. are Lagenaria (gourd, calabash), Citrullus lanatus (watermelon), and Cucurbita (squash/pumpkin).
images of plants in nature or specimens, family Amaranthaceae. The ex-Chenopodiaceae are listed as Amaranthaceae_Chenopodioideae. Our specimens of the cultivated amaranth (a sauce vegetable) are listed as Amaranthus_cf._dubius/hybridus.
images of plants, in nature or specimens, of family Malphighiaceae. The family is represented in rocky areas of Central Mali by Acridocarpus monodii, which is endemic to Mali and has become rare (and threatened).
images of plants, in nature or specimens, of family Orobanchaceae. The local species is Striga hermonthica, a root parasite of millet and other crop plants. The family (like Plantaginaceae) was recently separated from Scrophulariaceae, but family-level taxonomy remains controversial.
images of plants, in nature or specimens, of family Verbenaceae. This family has been sharply reduced by the transfer of many genera to Lamiaceae (Vitex, Gmelina, Clerodendrum).
images of plants, in nature or specimens, of family Myrtaceae. Syzygium is the local native species and is featured here. Syzygium is rare in Central Mali but was found on the summit of Gandamiya mountain near Douentza. It is common farther south. The family also includes guava, clove, and eucalyptus.
images of plants, in nature or specimens, of family Turneraceae. Recently the family Turneraceae including Tricliceras was merged into Passifloraceae in one botanical system, but some botanists reject this. Tricliceras is a weed in villages.
images of plants, in nature or specimens, of family Onagraceae. The local genus is Ludwigia. L. hyssopifolia and L. erecta are the two species known in Central Mali away from the main rivers (where other spp. are also found).
images of plants, in nature or specimens, of the family Meliaceae. Azadirachta (neem tree) is nonnative but is planted everywhere in Malian villages and cities. Khaya ("caïlcédrat") was formerly the boulevard tree of preference in cities in the colonial period; it is native to West Africa but occurs in the wild mainly farther south.
images of plants, in nature or specimens, of family Nymphaeaceae (true water lilies, compare Menyanthaceae). Nymphaea lotus is the largest species and has distinctive dentate leaf margins. N. maculata and N. micrantha are smaller; N. maculata has roughly circular leaves, while N. micrantha has more oval-shaped leaves and usually a tuft of hairs on top of the leaf next to the stem axis.
images of plants, in nature or specimens, of family Phyllanthaceae. Phyllanthus spp. and Flueggea occur wild in Central Mali. This family was formerly included in Euphorbiaceae.
images of plants, in nature or specimens, of family Portulacaceae (purslanes). Portulaca oleracea, P. quadrifida, and P. foliosa are widespread weeds, P. grandiflora is an ornamental in courtyards. Specimens deteriorate quickly. Except when flowering, P. oleracea can be confused with Trianthema portulacastrum (Aizoaceae).
images of plants, in nature or specimens, of family Nyctaginaceae. The genus Boerhavia has been revised since our collecting began and it is best to consider all of these images to be "Boerhavia sp.", though mostly B. coccinea.
images of plants, in nature or specimens, of family Moringaceae. The local species is Moringa oleracea, planted here and there in villages chiefly for the foliage which is made into a sauce.
images of flora from nature or of specimens, family Cleomaceae. This family was previously part of Capparaceae, and is now sometimes included in Brassicaceae.
images of plants, in nature or specimens, of the family Zingiberaceae. In Central Mali, the relevant species are Zingiber (ginger) and melegueta pepper (Aframomum). Ginger is cultivated or imported, and melegueta pepper is imported and sold as a spice or medicine.
images of plants, in nature or specimens, of family Malvaceae, genus Hibiscus. H. sabdariffa (roselle) is cultivated. H. esculentus (okra) is not widely cultivated in this zone. Of native species, H. micranthus can be confused with H. pseudohirtus.
images of plants, in nature or specimens, of family Malvaceae, genera I to Z. Malvaceae (sensu lato) now includes former Bombacaceae (Adansonia, Ceiba, Bombax), Tiliaceae (Grewia, Corchorus, Triumfetta), and Sterculiaceae (Cola, Sterculia, Waltheria).
images of plants, in nature and specimens, of family Lythraceae. Lawsonia is the henna bush, planted in towns. Henna is a dark pigment used in body decorations, especially hands and feet.
images of plants, in nature or specimens, of family Loranthaceae (mistletoe). Englerina has yellow flowers. Tapinanthus spp. have red flowers and are difficult to distinguish from each other. Tapinanthus bangwensis is the common species in Central Mali.
images of plants, in nature or specimens, of family Limeaceae. This family has recently been separated from Molluginaceae. Only Limeum pterocarpum is widespread in Central Mali.
images of plants, in nature or specimens, of family Lauraceae. Cassytha is a native plant. Laurus nobilis (a kind of bay leaf) is an imported dried leaf used as a spice especially in Songhay cuisine.
images of plants, in nature or specimens, of family Lami.aceae (synonym Labiatae). Leucas and Leonotis genera overlap and may be merged. Gmelina and Vitex have been transferreed to Lamiaceae from Verbenaceae but are still listed as Verbenaceae in some websites.
images of plants, in nature or specimens, of family Hydrocharitaceae. Included is genus Najas, which is sometimes elevated to family status (Najadaceae). Najas spp. are difficult for a nonspecialist to distinguish from each other and from Lagarosiphon. Ottelia is easily recognized.
images of plants, in nature or specimens, of plants of the family Hernandiaceae. Genus Gyrocarpus, the only one present in the zone, is sometimes placed in its own family Gyrocarpaceae.
images of plants, in nature or specimens, of family Fabaceae (legumes), subfamily Caesalpinioideae, mimosoid clade, former Acacia spp. (sensu lato). The acacias were split in 2011 into several genera: African acacias were assigned to Faidherbia, Senegalia, and Vachellia. Acacia (sensu stricto) was delimited to Australia (due to strong-arming from the Australian timber industry), even though the type species was Acacia (now Vachellia) nilotica. Acacia ehrenbergiana was renamed Vachellia flava, in other cases the species epithet did not change when the genus changed. Many botanists continue to use Acacia for the entire complex, others recognize Faidherbia but retain Acacia for Senegalia and Vachellia. By strict botanical rules, Acacia should be limited to "Vachellia".
images of plants, in nature or specimens, of family Fabaceae (legumes), subfamily Caesalpinioideae, excluding mimosoids (e.g. acacias). The genus Cassia has been divided into Cassia (sensu stricto), Chamaecrista, and Senna.