A5021827367- Space Exploration and Technology
- Spaceflight effects on biology
- Planetary Science and Exploration
- Spacecraft Design and Technology
- Space Science and Extraterrestrial Life
- Spacecraft and Cryogenic Technologies
- Human-Automation Interaction and Safety
- Technology Assessment and Management
- Algal biology and biofuel production
- Astro and Planetary Science
- Systems Engineering Methodologies and Applications
- Biomedical and Engineering Education
- Heat Transfer and Optimization
- Plant Water Relations and Carbon Dynamics
- Light effects on plants
- Leaf Properties and Growth Measurement
- Virtual Reality Applications and Impacts
- Transition Metal Oxide Nanomaterials
- Augmented Reality Applications
- Engineering Education and Pedagogy
- Metal Alloys Wear and Properties
- Space exploration and regulation
- Diamond and Carbon-based Materials Research
- Remote Sensing in Agriculture
- Magnetic and Electromagnetic Effects
University of Colorado Boulder
2015-2024
University of Colorado System
2006-2023
United States Department of Energy
2015
Schlumberger (Canada)
1999
Previous investigations have reported that space flight may produce a stimulating effect on microbial metabolism; however, the specific underlying mechanisms associated with observed changes not yet been identified. In an effort to systematically evaluate of each phase growth (lag, exponential and stationary), series experiments was carried out using in vitro suspension cultures Escherichia coli aboard seven US Space Shuttle missions. The results indicated that, as result flight, lag...
The common features of spectral reflectance from vegetation foliage upon leaf dehydration are decreasing water absorption troughs in the near‐infrared (NIR) and short‐wave‐infrared (SWIR). We studied which index NIR SWIR is most suitable for assessment content detection laboratory standpoint. also examined influence thickness leaves indices. All indices exhibited basic correlations with relative (RWC) leaves, while R 1300/R 1450 demonstrated a high signal strength low variability (R 2>0.94)....
Bacteria will accompany humans in our exploration of space, making it importance to study their adaptation the microgravity environment. To investigate potential phenotypic changes for bacteria grown Escherichia coli was cultured onboard International Space Station with matched controls on Earth. Samples were challenged different concentrations gentamicin sulfate role drug concentration dependent variables space Analyses included assessments final cell count, size, envelope thickness,...
Bacteria grown in space experiments under microgravity conditions have been found to undergo unique physiological responses, ranging from modified cell morphology and growth dynamics a putative increased tolerance antibiotics. A common theory for this behavior is the loss of gravity-driven convection processes orbital environment, resulting both reduction extracellular nutrient availability accumulation bacterial byproducts near cell. To further characterize study investigated transcriptomic...
Bacteria behave differently in space, as indicated by reports of reduced lag phase, higher final cell counts, enhanced biofilm formation, increased virulence, and susceptibility to antibiotics. These phenomena are theorized, at least part, result from mass transport the local extracellular environment, where movement molecules consumed excreted is limited diffusion absence gravity-dependent convection. However, date neither empirical nor computational approaches have been able provide...
Biofilm growth has been observed in Soviet/Russian (Salyuts and Mir), American (Skylab), International (ISS) Space Stations, sometimes jeopardizing key equipment like spacesuits, water recycling units, radiators, navigation windows. formation also increases the risk of human illnesses therefore needs to be well understood enable safe, long-duration, space missions. Here, design a NASA-supported biofilm project is reported. This new aims characterize inside Station controlled fashion,...
Abstract To improve our understanding of cement debonding linked to microannulus formation and, in particular, develop better non-shrinking cements ensure zonal isolation, a well simulating annulus experiment has been developed and tests with expanding have performed. The expansion experiments demonstrate that can prevent the if properties are designed respect rock properties. A good application for is isolation gas storage reservoirs. Two examples shown efficiency cements.
Bacterial behavior has been studied under microgravity conditions, but very little is known about it lunar and Martian gravitational regimes. An Earth-based approach was designed implemented using inclined clinostats an in-house-developed code to determine the optimal clinorotation angular speed for bacterial liquid cultures of 5 RPM. With this setup, growth dynamics, phenotypic changes, sensitivity antibiotics (minimum inhibitory concentration (MIC) two different classes antibiotics) three...