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- Creator:
- Heath, Jeffrey
- Description:
- These recordings have not been transcribed but are made available to native speakers and to linguists. Tiéyaxo is the sister dialect to Tigemaxo, which together form a language within the Bozo family. The author has completed a study of Tigemaxo but has done no work specifically on Tiéyaxo. Other works in this collection contain Tigemaxo audio files, and one such work contains a Tigemaxo and a Tieyaxo recording from 1989.
- Keyword:
- Bozo language and Tiéyaxo
- Discipline:
- Humanities
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- Creator:
- Heath, Jeffrey
- Description:
- Recordings in Tigemaxo from 2022 in Dia village have been transcribed and the audio files are in a separate work ( https://doi.org/10.7302/hagd-xe26). The present work is a much larger set of audio recordings, also in Tigemaxo and from Dia village, but recorded in 2024. It includes ethnohistory and tales. , The ethnohistorical texts are with one main speaker (Mama Sienta), interviewed by Oumar Dienta, both male. The tales are told by a range of male and female speakers, with light backchannel accompaniment by the audience. Each tale in Tigemaxo is accompanied by a repetition or summary in French by Oumar Dienta in a separate file. The author has no plans to transcribe the 2024 recordings and is depositing this audio library for future use by native speakers and/or by linguists. The same is true of the 2019 Tigemaxo/Tiéyaxo recordings ( https://dx.doi.org/10.7302/6632), and the 2021 Tiéyaxo recordings ( https://doi.org/10.7302/2e0d-xk52), which are in two other works in this collection. , and A short catalog of the files in this work, without transcription or translation, appears in J. Heath, "Tigemaxo (Bozo) texts of 2022 in Dia village (Mali)" in Zenodo, of which a backup copy is in Deep Blue Documents (see below).
- Keyword:
- Bozo language, Tigemaxo, and Dia village Mali
- Citation to related publication:
- Heath, J. (2025). A Grammar of Tigemaxo of Dia (Bozo family, Mali). Zenodo. https://doi.org/10.5281/zenodo.15160216
- Discipline:
- Humanities
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- Creator:
- Heath, Jeffrey
- Description:
- The 2022 recordings are transcribed and translated, with further commentary, in J. Heath, "Tigemaxo (Bozo) texts of 2022 from Dia village (Mali)" in Deep Blue Documents (see below).
- Keyword:
- Bozo language, Tigemaxo, and Dia village Mali
- Citation to related publication:
- Heath, J. (2025). A Grammar of Tigemaxo of Dia (Bozo family, Mali). Zenodo. https://doi.org/10.5281/zenodo.15160216
- Discipline:
- Humanities
-
- Creator:
- Whittaker, Collin B.
- Description:
- This study follows after work conducted first for my dissertation and is presently being prepared for journal submission. The goal of our analysis was to analyze a small design space for an electrospray array thruster---varying the geometry of its emitters, the size of its extractor apertures, and its operating voltage---to determine designs robust to uncertainty. That is, we use a model for array performance whose input parameters we treat as uncertain (stemming from approximations to higher-order physics, manufacturing tolerances in fabricating a thruster, and so on). Making these predictions as a function of design, then, we can identify configurations that are performant robust to this uncertainty (i.e., still meet required performance specifications with high confidence). The data which inform this trade study are taken pricipally from our pending manuscript "Emitter Model Inference from Electrospray Array Thruster Tests", and from my thesis, "Designing Porous Electrospray Array Thrusters Under Uncertainty" (linked to the dataset as published). The analysis was conducted in January and February of 2025. This work was supported by a NASA Space Technology Graduate Research Opportunity (80NSSC21K1247). This research was also supported in part through computational resources and services provided by Advanced Research Computing, a division of Information and Technology Services at the University of Michigan, Ann Arbor.
- Keyword:
- Electrospray, Electric propulsion, Robust optimization, Bayesian inference, and Ionic liquid ion source
- Discipline:
- Engineering
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- Creator:
- Whittaker, Collin B
- Description:
- The object of our study was to train a reduced-fidelity model for individual emitter behavior within a porous conical type electrospray array thruster on data taken over the entire array, which is the sum over all the emitters. By leveraging surface profilometry to measure the variance in geometry in the array, we then gain insight into the individual emitter dynamics. By rigorously predicating uncertainty in the predictions made by the model on uncertainty over its inputs, we can then understand the major sources of uncertainty in the system. The raw experimental data which inform this inference and prediction study were acquired in April of 2024 at the Jet Propulsion Laboratory's MicroPropulsion Laboratory, with special thanks to Colleen Marrese-Reading and Steven Arestie. These and other results are reported in a separate manuscript: C. B. Whittaker, B. A. Jorns, S. M. Arestie, and C. M. Marrese-Reading, in 38th International Electric Propulsion Conference (Electric Rocket Propulsion Society, 2024) p. 730. The thruster used in these experiments was fabricated at the University of Michigan in March of 2024. The analysis underlying this work was conducted from September of 2024 to January of 2025. This work was supported by a NASA Space Technology Graduate Research Opportunity (80NSSC21K1247). This research was also supported in part through computational resources and services provided by Advanced Research Computing, a division of Information and Technology Services at the University of Michigan, Ann Arbor. Finally, this work was performed in part at the University of Michigan Lurie Nanofabrication Facility.
- Keyword:
- Electrospray, Electric propulsion, Ionic liquid ion source, Bayesian inference, and Profilometry
- Discipline:
- Engineering
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- Creator:
- Heath, Jeffrey
- Description:
- Tebul Ure is a language of the Dogon language family in east central Mali. It is spoken in a few villages on the heights overlooking the towns of Bamba and Yanda on the eastern cliffs of the Dogon plateau. The lexicon was compiled as part of a broader three-part grammar-texts-lexicon study of this language. and Columns from left to right (omitting blanks) are: Tebul Ure (transcription) finder (English finder list, i.e. usually one-word glosses) recherche (finder list in French), English (full English gloss), français (full French gloss), domain (for types of plant or fauna, e.g. snake), species (genus-species binomials), order/family (for flora-fauna terms); and synonymy (alternative or former species binomials)
- Keyword:
- Tebul Ure
- Discipline:
- Humanities
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- Creator:
- Heath, Jeffrey
- Description:
- Tebul Ure is a Dogon language spoken on the heights in a horseshoe valley between Bamba and Yanda on the eastern edge of the Dogon (Bandiagara) plateau in central Mali. A grammar is drafted but incomplete as of May 2018. Texts were transcribed from dictation in 2012 in the Tebul area, and others were recorded digitally in 2015 at a nearby town on the plateau. Six of the 2015 texts have been transcribed. The texts are included at the end of the grammar. I grant permission to other linguists to transcribe, translate, or analyse any texts that remain untranscribed beginning 2022.
- Keyword:
- Tebul Ure, Dogon, Mali, Audio, and Recording
- Citation to related publication:
- Moran, Steven & Forkel, Robert & Heath, Jeffrey (eds.) 2016. Dogon and Bangime Linguistics. Jena: Max Planck Institute for the Science of Human History. http://dogonlanguages.org
- Discipline:
- Humanities
-
- Creator:
- Chen, Hongfan, Chen, Yang, Huang, Zhenguang, Zou, Shasha, Huan, Xun, and Toth, Gabor
- Description:
- Accurately predicting the horizontal component of the ground magnetic field perturbation (dBH), which can be used to calculate the Geomagnetically Induced Currents (GICs), is crucial for estimating the space weather impact of geomagnetic disturbances. In this work, we develop a new data-driven model GeoDGP using deep Gaussian process (DGP), which is a Bayesian non-parametric approach. The model provides global probabilistic forecasts of dBH at 1-minute time cadence and with arbitrary spatial resolutions. We evaluate the model comprehensively on a wide range of geomagnetic storms, including the 2024 Gannon extreme storm. The results show that GeoDGP significantly outperforms the state-of-the-art physics-based first-principles Space Weather Modeling Framework (SWMF) Michigan Geospace model and the data-driven DAGGER model.
- Keyword:
- Space Weather, Uncertainty Quantification, Machine Learning, and Bayesian Inference
- Citation to related publication:
- Chen, H., et al. (2024). GeoDGP: One-Hour Ahead Global Probabilistic Geomagnetic Perturbation Forecasting using Deep Gaussian Process.
- Discipline:
- Science and Engineering
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- Creator:
- Chen, Hongfan, Sachdeva, Nishtha, Huang, Zhenguang, van der Holst, Bart, Manchester, Ward, Jivani, Aniket, Zou, Shasha, Chen, Yang, Huan, Xun, and Toth, Gabor
- Description:
- In this study, we show that coronal mass ejection (CME) simulations conducted with the Space Weather Modeling Framework (SWMF) can be assimilated with SOHO LASCO white-light (WL) coronagraph observations and solar wind observations at L1 prior to the CME eruption to improve the prediction of CME arrival time. L1 observations are used to constrain the background solar wind, while LASCO coronagraph observations filter the initial ensemble simulations by constraining the simulated CME propagation speed. We then construct probabilistic predictions for CME arrival time using the data-assimilated ensemble. Scripts in this work are written in R, Python and Julia.
- Keyword:
- Data Assimilation, Uncertainty Quantification, and Space Weather
- Citation to related publication:
- https://doi.org/10.1029/2024SW004165
- Discipline:
- Engineering
-
- Creator:
- Ludlow, Andrew and Ahn, Alexander
- Description:
- Publicly accessible short-read RNA sequencing (SRS) of clinical exercise studies were extracted from the Gene Expression Omnibus. Oxford Nanopore long-read RNA sequencing (LRS) was performed on mouse gastrocnemius before and following treadmill exercise. Differential gene expression (DGE), differential alternative splicing (DAS), and differential isoform expression (DIE) were analyzed. Gel-based/droplet digital RT-PCR and western blots were performed to validate expression changes of select genes. Both SRS and LRS illustrated significant DGE in skeletal muscle post-exercise, whereby 89 RBPs were significantly up-/down-regulated. rMATS analysis of SRS data revealed that exon-skipping and intron-retaining splicing events were the most common. Swan analysis of LRS data revealed 61 RBPs with significant isoform switching: one of these RBPs, mHnrnpa3, underwent a significant non-coding to protein-coding switch. HnRNP-A3 protein levels validated nearly two-fold increases at 1 hour and 24 hours post-exercise.
- Keyword:
- Alternative splicing and Exercise
- Citation to related publication:
- Impact of Acute Endurance Exercise on Alternative Splicing in Skeletal Muscle. Alexander Ahn, Jeongjin J. Kim, Aaron L. Slusher, Jeffrey Y. Ying, Eric Y. Zhang, Andrew T. Ludlow bioRxiv 2024.11.21.624690; doi: https://doi.org/10.1101/2024.11.21.624690
- Discipline:
- Health Sciences