Publications
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Statistical Comparison of TEC Derived from GPS and ISR Observations at High Latitudes
A comprehensive data set collected with the Poker Flat Incoherent Scatter Radar and GPS receiver in Fairbanks, Alaska is employed to analyze and compare the total electron content estimates derived…
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Automorphism Groups of Graphical Models and Lifted Variational Inference
Using the theory of group action, we first introduce the concept of the automorphism group of an exponential family or a graphical model, thus formalizing the general notion of symmetry…
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Determining Receiver Biases in GPS-Derived Total Electron Content in the Auroral Oval and Polar Cap Region Using Ionosonde Measurements
We will test the applicability of common numerical methods for estimating receiver DCBs in high-latitude regions and compare our CADI-calibrated GPS vertical TEC measurements to corresponding International GNSS Service IONEX-interpolated…
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Groups: Knowledge Spreadsheets for Symbolic Biocomputing
‘Groups’ is an implementation of Knowledge Spreadsheets (KSs) within the Pathway Tools system.
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Science, Technology, Engineering, and Mathematics (STEM) Participation Among College Students with an Autism Spectrum Disorder
This study analyzed data from the National Longitudinal Transition Study-2, a nationally representative sample of students with an ASD in special education.
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The Association between Postload Plasma Glucose Levels and 38-Year Mortality Risk of Coronary Heart Disease: The Prospective NHLBI Twin Study
We aimed to evaluate whether the association between postload plasma glucose levels (ppGlucose) and long-term risk of mortality from coronary heart disease was independent of or attributable to genes and…
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Potential Reporting Bias in fMRI Studies of the Brain
Functional magnetic resonance imaging (fMRI) studies have reported multiple activation foci associated with a variety of conditions, stimuli or tasks.
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Comparison of a New Cobinamide-Based Method to a Standard Laboratory Method for Measuring Cyanide in Human Blood
The authors developed and validated a method to quantify cyanide based on the high binding affinity of the vitamin B12 analog, cobinamide, for cyanide and a major spectral change observed…
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An Exploratory Study of Interdisciplinarity and Breakthrough Ideas
We conduct an exploratory study to understand how to measure the degree of interdisciplinarity involved in novel, significant research fields, and how those measures capture the integration of disparate ideas…
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Ringwoodite Rims around Olivine Fragments in Melt Vein of Antarctic Chondrite GRV022321: Transformation Kinetics
Ringwoodite rims around olivine in shocked veins of chondrites GRV 022321 were investigated by electron microscopes to elucidate mechanisms of transformation and Mg-Fe diffusion of olivine to ringwoodite, and estimate…
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Affect Analysis in Natural Human Interaction Using Joint Hidden Conditional Random Fields
We present a novel approach for multi-modal affect analysis in human interactions that is capable of integrating data from multiple modalities while also taking into account temporal dynamics.
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High-Speed Photo-Modulated Spindt Cathode for FELs
SRI International is integrating a Spindt-type field-emission source with a high-mobility GaN photoconducting semiconductor switch (PCSS) to develop cathodes capable of producing Ampere-level currents in the picosecond pulse regime.