Search Results - "Christian, John"

StarNAV: Autonomous Optical Navigation of a Spacecraft by the Relativistic Perturbation of Starlight by Christian, John A

“…Future space exploration missions require increased autonomy. This is especially true for navigation, where continued reliance on Earth-based resources is…”
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Seasonality, niche management and vertical migration in landscapes of relief by John, Christian, Post, Eric

“…Landscapes of vertical relief, such as mountains and continental slopes, intensify ecological and climatological variation within narrow spatial windows…”
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A Tutorial on Horizon-Based Optical Navigation and Attitude Determination With Space Imaging Systems by Christian, John A.

“…Images of a nearby celestial body collected by a camera on an exploration spacecraft contain a wealth of actionable information. This work considers how the…”
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Projected bioclimatic distributions in Nearctic Bovidae signal the potential for reduced overlap with protected areas by John, Christian, Post, Eric

“…Assumptions about factors such as climate in shaping species' realized and potential distributions underlie much of conservation planning and wildlife…”
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Navigation and star identification for an interstellar mission by McKee, Paul, Kowalski, Jacob, Christian, John A.

“…The possibility of interstellar scientific missions, even if only to explore the local Interstellar Medium (ISM), has received increased consideration in…”
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Utopia and Religion in Europe in the Seventeenth and Eighteenth Centuries by Laursen, John Christian

“…When European writers of the seventeenth and eighteenth centuries wrote about utopia or their vision of the best possible way to live, they usually included…”
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A comprehensive evaluation of PCR primers to amplify the nifH gene of nitrogenase by Gaby, John Christian, Buckley, Daniel H

“…The nifH gene is the most widely sequenced marker gene used to identify nitrogen-fixing Bacteria and Archaea. Numerous PCR primers have been designed to…”
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Moisture and distribution of a keratophagous moth, Tinea occidentella by Strong, Donald R., John, Christian

“…Keratophagous insects consume proteinaceous foods (animal hair, feathers, and other substances containing keratin) that are low or even lacking in water, which…”
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Feeding frequency influences process performance and microbial community composition in anaerobic digesters treating steam exploded food waste by Svensson, Kine, Paruch, Lisa, Gaby, John Christian, Linjordet, Roar

“…•Gas and methane production volumes were higher in the frequently fed reactor.•Low methane yield linked to inhibition of β-oxidation and labile…”
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Regional variation in green-up timing along a caribou migratory corridor: Spatial associations with snowmelt and temperature by John, Christian, Miller, Douglas, Post, Eric

“…Spring green-up in arctic and alpine systems is predominantly controlled by temperature and snowmelt timing preceding and during the growing season. Variation…”
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Assessing net energy consumption of Australian economy from 2004–05 to 2014–15: Environmentally-extended input-output analysis, structural decomposition analysis, and linkage analysis by He, He, Reynolds, Christian John, Li, Linyang, Boland, John

“…•Direct and indirect effects of sectors on net energy consumption are analysed.•Level effect is identified as the major driver for increasing energy…”
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A global census of nitrogenase diversity by Gaby, John Christian, Buckley, Daniel H.

“…Summary The global diversity of nitrogen‐fixing microorganisms was assessed through construction and analysis of an aligned database of 16 989 nifH sequences…”
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drpToolkit: An automated workflow for aligning and analysing vegetation and ground surface time‐series imagery by John, Christian, Shilling, Fraser, Post, Eric

“…Analysis of ecological data from digital repeat photography requires consistent file and metadata management, image alignment and data extraction across the…”
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Microbiota-directed fibre activates both targeted and secondary metabolic shifts in the distal gut by Michalak, Leszek, Gaby, John Christian, Lagos, Leidy, La Rosa, Sabina Leanti, Hvidsten, Torgeir R., Tétard-Jones, Catherine, Willats, William G. T., Terrapon, Nicolas, Lombard, Vincent, Henrissat, Bernard, Dröge, Johannes, Arntzen, Magnus Øverlie, Hagen, Live Heldal, Øverland, Margareth, Pope, Phillip B., Westereng, Bjørge

“…Beneficial modulation of the gut microbiome has high-impact implications not only in humans, but also in livestock that sustain our current societal needs. In…”
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Birational geometry of hypersurfaces in products of projective spaces by Ottem, John Christian

“…We study the birational properties of hypersurfaces in products of projective spaces. In the case of hypersurfaces in P m × P n , we describe their nef,…”
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Complexity revealed in the greening of the Arctic by Myers-Smith, Isla H., Kerby, Jeffrey T., Phoenix, Gareth K., Bjerke, Jarle W., Epstein, Howard E., Assmann, Jakob J., John, Christian, Andreu-Hayles, Laia, Angers-Blondin, Sandra, Beck, Pieter S. A., Berner, Logan T., Bhatt, Uma S., Bjorkman, Anne D., Blok, Daan, Bryn, Anders, Christiansen, Casper T., Cornelissen, J. Hans C., Cunliffe, Andrew M., Elmendorf, Sarah C., Forbes, Bruce C., Goetz, Scott J., Hollister, Robert D., de Jong, Rogier, Loranty, Michael M., Macias-Fauria, Marc, Maseyk, Kadmiel, Normand, Signe, Olofsson, Johan, Parker, Thomas C., Parmentier, Frans-Jan W., Post, Eric, Schaepman-Strub, Gabriela, Stordal, Frode, Sullivan, Patrick F., Thomas, Haydn J. D., Tømmervik, Hans, Treharne, Rachael, Tweedie, Craig E., Walker, Donald A., Wilmking, Martin, Wipf, Sonja

“…As the Arctic warms, vegetation is responding, and satellite measures indicate widespread greening at high latitudes. This ‘greening of the Arctic’ is among…”
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Lidar-based relative navigation with respect to non-cooperative objects by Woods, John O., Christian, John A.

“…Most navigation solutions which make use of lidar for proximity operations with respect to non-cooperative objects rely on the iterative closest point, or icp,…”
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Identification of gene-drug interactions that impact patient survival in TCGA by Spainhour, John Christian Givhan, Qiu, Peng

“…With the advent of large scale biological data collection for various diseases, data analysis pipelines and workflows need to be established to build…”
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Tobacco Control: A leverage to attain sustainable development goals in the Philippines by Payumo, John Christian

“…Introduction: One of the key elements of Sustainable Development Goals (SDGs) is interconnectivity. As such, much can be said about the direct and indirect…”
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A Supply-Use Approach to Waste Input-Output Analysis by Lenzen, Manfred, Reynolds, Christian John

“…Summary In this article, we extend Namakura and Kondo's waste input‐output (WIO) framework by incorporating a supply‐use formalism, resulting in waste…”
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