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Testing of Lunar Distributed Sensor Network Deployment and Community Science Participation
No full textThe GLEE Mission is a NASA-funded, student-run lunar science mission that aims to develop low-cost, solar-powered PCB sensor packages (called LunaSats) to conduct research on the Moon, while also engaging students around the world in lunar research and mission design. Dozens of LunaSats will be deployed across the surface of the Moon to collect and transmit thermal, magnetic, vibration, and lunar regolith characterization data using a radio mesh network. Student teams will be able to design and program their own science missions using the LunaSats to gather research data and gain experience in lunar mission design
Predicting TLE Covariance Using Transformer-Based Time Series Forecasting
Get PDFThis paper introduces the notion of using a transformer-inspired time series forecasting model, more specifically IBM’s Tiny Time Mixer (TTM), to predict the covariance of Two-Line Elements (TLEs). The pre-trained compact univariate model is finetuned on a dataset of historical TLEs. Using the well established technique of pairwise differencing, a fixed-interval time series of TLE covariances is generated. This series is merged with exogenous variables extracted from the TLEs themselves, such as the classical orbital elements. The multi-level modeling capabilities of the TTM allow it to capture inter-channel correlations, crucial to capture the complex interactions inherent in the prediction of TLE covariances.
The TTM model is set up with generalizability in mind, training it on a dataset of satellites, completely distinct from the test set. This approach ensures that the model can generalize well to unseen satellites, making it applicable to a wide range of objects in Earth orbit. The performance of the model is demonstrated by assessing its ability to predict the covariance of TLEs for a distinct set of satellites. Across the different orbital regimes, the model demonstrates variable precision across the covariance components, with the tangential positional component remaining the most difficult to predict
CURIE Power Suite: Enabling Deep Space High-Power CubeSat Exploration
No full textWith the development and consolidation of new space exploration solutions, new operational scenarios are enabled, and with them new challenges arise. This paper describes the design drivers, process and achieved features of the newly developed CURIE Power Conversion and Distribution Unit (PCDU), aiming at deep-space CubeSat-operated critical missions. Born from cooperation between Argotec and the Power Electronics unit of the European Space Agency (ESA), this power unit is going to be employed on the HEliospheric pioNeer for sOlar and interplanetary threats defeNce (HENON) mission by ESA and the Italian Space Agency (ASI), aiming at demonstrating new solutions for near real-time in-situ monitoring and alerting of solar events of interest. The power unit is designed, engineered and manufactured around few important design drivers. The first is robustness against all possible faults and degradation caused by exposure to space radiation, crucial deep-space missions, guaranteeing a minimum Destructive Single-Event Effects LET threshold (LETth) of 38 MeV*cm2/mg and a minimum Total Ionizing Dose (TID) sensitivity threshold of 30krad(Si). The second design driver is high-power management capabilities: having nominal power output of 250W, the PCDU enables both basic and scientific operations but also more power-intensive applications like accelerated on-board data processing and electric propulsion. In fact, in the HENON mission (planned for launch in Q4 2026) CURIE power unit will permit a 396-days long transfer phase to the target Distant Retrograde Orbit (DRO) in the Sun-Earth system, exploiting a mission-specific electric propulsion system. Another key design driver for CURIE are volume reduction, functional modularity and performance scalability, enabling a Suite of products: thanks to a VPX-like structure with a full-mesh backplane, the flight model volumetric envelop reaches 2U (145x120x109 mm) in its most complete configuration, but allows different mixed solutions of primary conversion and distribution boards based on the platform intended needs. As a result, the combination of performance, functionalities, modularity and the reduced form factor offered by the CURIE Suite make the system compatible with a vast set of uses, ranging from small CubeSat platforms but also targeting larger microsatellites with higher power demands and specific needs in terms of power conversion. For the Lunar Meteoroid Impacts Observer (LUMIO) mission by ESA, to be launched as early as Q1 2026, this power unit will be employed in an alternative primary conversion configuration achieving an even smaller volume envelope. Engineering Model testing of CURIE is under way in Q2 2025 with promising preliminary results, FM production is foreseen for Q4 2025
Faculty Senate Minutes April 28, 2025
No full textCall to Order Approval of Minutes - March 31, 2025 University Business Faculty Senate Business Information EPC Report - April 3, 2025 The Office of Equity Report Committee on Committees (CoC) Annual Report Calendar Committee Annual Report Retention Annual Report Recruitment Annual Report Old Business New Business Adjourn - 4:30 p
Cocoa Polyphenols Alter the Fecal Microbiome Without Mitigating Colitis in Mice Fed Healthy or Western Basal Diets
No full textBackground/Objectives: Chronic inflammation and Western-style diets elevate colorectal cancer (CRC) risk, particularly in individuals with colitis, a feature of inflammatory bowel disease (IBD). Diets rich in polyphenol-containing functional foods, such as cocoa, may reduce gut inflammation and modulate the gut microbiome. This study investigated the impact of cocoa polyphenol (CP) supplementation on inflammation and microbiome composition in mice with colitis, fed either a healthy or Western diet, before, during, and after the onset of disease. We hypothesized that CPs would attenuate inflammation and promote distinct shifts in the microbiome, especially in the context of a Western diet. Methods: A 2 × 2 factorial design tested the effects of the basal diet (AIN93G vs. total Western diet [TWD]) and CP supplementation (2.6% w/w CocoaVia™ Cardio Health Powder). Inflammation was induced using the AOM/DSS model of colitis. Results: CP supplementation did not reduce the severity of colitis, as measured by disease activity index or histopathology. CPs did not alter gene expression in healthy tissue or suppress the colitis-associated pro-inflammatory transcriptional profile in either of the two diet groups. However, fecal microbiome composition shifted significantly with CPs before colitis induction, with persistent effects on several rare taxa during colitis and recovery. Conclusions: CP supplementation did not mitigate inflammation or mucosal injury at the tissue level, nor did it affect the expression of immune-related genes. While CPs altered microbiome composition, most notably in healthy mice before colitis, these shifts did not correspond to changes in inflammatory signaling. Basal diet remained the primary determinant of inflammation, mucosal damage, and colitis severity in this model
A Difference of Opinion: How Resilience Can Change Your Life
Get PDFRacial bias is often a difficult topic to talk about, even though it is a daily occurrence. these prejudices appear in all aspects of the lives of the people who are affected. Mexican Americans are one of the minorities that experience the greatest prejudice because of their race, and these prejudices are not limited by age. Mexican-American children are at the greatest disadvantage because there is little they can do to change their situations, and it becomes even more difficult when you consider that many children also do not have the support of their parents.
My analysis serves to consider the effect a positive outlook and attitude of resilience can have on the lives of Mexican Americans and the communities that surround them. These four autobiographical works included in my study detail the experiences and realities of Mexican Americans living in the United States. These narratives support the idea of what impact a change in attitude can have on the outcome of the challenges that Mexican Americans face
Color and Behavior Theory in Mental Wellness Centers
Get PDFColor significantly influences human behavior, mood, and cognition, making it a powerful tool in design. Different colors evoke specific emotional and psychological responses due to their wavelength, cultural associations, and personal experiences. Understanding how color affects behavior helps create spaces that support desired outcomes, such as relaxation, focus, or social engagement
Creating a STAT2 Knock-Out Rat With CRISPR/Cas9 Using i-GONAD
Get PDFThe STAT2 gene encodes a protein called Signal Transducer and Activator of Transcription 2. This protein is a part of the STAT family of transcription factors, which are involved in mediating cellular responses to various cytokines and growth factors, particularly those related to the immune response. Here, we established a successful procedure for creating a STAT2 knock-out (KO) Rat that can be used for more accurate disease testing of serious human ailments such as Lupus, Polio, Herpes, RSV, and even cancer
Protective Efficacy of a Yellow Fever Virus RNA- Based Vaccine in a Hamster Model
Get PDF• Yellow Fever virus (YFV) remains a concern as of 2023, 34 countries in Africa and 13 countries in South America are endemic, with a case fatality rate of 11% shown in preliminary data.[3
A Pressure-Based Estimate of Multi-Orifice Synthetic Jet Performance
Get PDFSynthetic Jets Zero-Net Mass Flux Wide voltage and frequency response Trends with physical and nondimensional parameter