Browsing FAS Scholarly Articles by Title
Now showing items 10115-10134 of 18292
-
Modeling Analysis of Primary Controls on Net Ecosystem Productivity of Seven Boreal and Temperate Coniferous Forests Across a Continental Transect
(Blackwell Publishing, 2008)Process-based models are effective tools to synthesize and/or extrapolate measured carbon (C) exchanges from individual sites to large scales. In this study, we used a C- and nitrogen (N)-cycle coupled ecosystem model named ... -
Modeling and Decoding Motor Cortical Activity Using a Switching Kalman Filter
(Institute of Electrical and Electronics Engineers, 2004)We present a switching Kalman filter model for the real-time inference of hand kinematics from a population of motor cortical neurons. Firing rates are modeled as a Gaussian mixture where the mean of each Gaussian component ... -
Modeling and Inferring Cleavage Patterns in Proliferating Epithelia
(Public Library of Science, 2009)The regulation of cleavage plane orientation is one of the key mechanisms driving epithelial morphogenesis. Still, many aspects of the relationship between local cleavage patterns and tissue-level properties remain poorly ... -
Modeling Coherent Anti-Stokes Raman Scattering with Time-Dependent Density Functional Theory: Vacuum and Surface Enhancement
(American Chemical Society, 2011)We present the first density functional simulations of coherent anti-Stokes Raman scattering (CARS) and an analysis of the chemical effects upon binding to a metal surface. Spectra are obtained from first-principles ... -
Modeling contextual effects using individual-level data and without aggregation: an illustration of multilevel factor analysis (MLFA) with collective efficacy
(BioMed Central, 2015)Population health scientists increasingly study how contextual-level attributes affect individual health. A major challenge in this domain relates to measurement, i.e., how best to measure and create variables that capture ... -
Modeling Convergent ON and OFF Pathways in the Early Visual System
(Springer-Verlag, 2008)For understanding the computation and function of single neurons in sensory systems, one needs to investigate how sensory stimuli are related to a neuron’s response and which biological mechanisms underlie this relationship. ... -
Modeling Fluid Flow in Medullosa, an Anatomically Unusual Carboniferous Seed Plant
(Paleontological Society, 2008)<i>Medullosa</i> stands apart from most Paleozoic seed plants in its combination of large leaf area, complex vascular structure, and extremely large water-conducting cells. To investigate the hydraulic consequences of these ... -
Modeling foundation species in food webs
(Ecological Society of America, 2013)Foundation species are basal species that play an important role in determining community composition by physically structuring ecosystems and modulating ecosystem processes. Foundation species largely operate via non-trophic ... -
A Modeling Framework for Jamming Structures
(Wiley, 2021-02-10)Jamming is a structural phenomenon that provides tunable mechanical behavior. A jamming structure typically consists of a collection of elements with a low effective stiffness and damping. When a pressure gradient, such ... -
Modeling how Humans Reason about Others with Partial Information
(2007)Computer agents participate in many collaborative and competitive multi-agent domains in which humans make decisions. For computer agents to interact successfully with people in such environments, an understanding of human ... -
Modeling Imitation and Emulation in Constrained Search Spaces
(Psychonomic Society, 2011)Social transmission of behavior can be realized through distinct mechanisms. Research on primate social learning typically distinguishes two forms of information that a learner can extract from a demonstrator: copying ... -
Modeling Impact Cratering in Layered Surfaces
(American Geophysical Union, 2007)Impact craters are potentially powerful tools for probing large-scale structure beneath planetary surfaces. However, the details of how target structure affects the impact cratering process and final crater forms remain ... -
Modeling Information Exchange Opportunities for Effective Human-Computer Teamwork
(Elsevier, 2013)This paper studies information exchange in collaborative group activities involving mixed networks of people and computer agents. It introduces the concept of "nearly decomposable" decision-making problems to address the ... -
Modeling Kepler Transit Light Curves as False Positives: Rejection of Blend Scenarios for Kepler-9, and Validation of Kepler-9 D, A Super-earth-size Planet in a Multiple System
(American Astronomical Society, 2011)Light curves from the Kepler Mission contain valuable information on the nature of the phenomena producing the transit-like signals. To assist in exploring the possibility that they are due to an astrophysical false positive, ... -
Modeling Mid-Infrared Diagnostics of Obscured Quasars and Starbursts
(IOP Publishing, 2013)We analyze the link between active galactic nuclei (AGNs) and mid-infrared flux using dust radiative transfer calculations of starbursts realized in hydrodynamical simulations. Focusing on the effects of galaxy dust, we ... -
Modeling Mitral Valve Leaflets from Three-Dimensional Ultrasound
(Springer Science + Business Media, 2011)The geometry of the mitral leaflets, most commonly viewed using three-dimensional ultrasound, is an important input for mechanical models predicting valve closure. Current methods for leaflet modeling from ultrasound either ... -
Modeling muscle function using experimentally determined subject-specific muscle properties
(Elsevier BV, 2021-03)Muscle models are commonly based on intrinsic properties pooled across a number of individuals, often from a different species, and rarely validated against directly measured muscle forces. Here we use a rich data set of ... -
Modeling nanoscale V-shaped antennas for the design of optical phased arrays
(American Physical Society, 2012)We present a simplified numerical method to solve for the current distribution in a V-shaped antenna excited by an electric field with arbitrary polarization. The scattered far-field amplitude, phase, and polarization of ... -
Modeling of cardiac muscle thin films: Pre-stretch, passive and active behavior
(Elsevier, 2012)Recent progress in tissue engineering has made it possible to build contractile bio-hybrid materials that undergo conformational changes by growing a layer of cardiac muscle on elastic polymeric membranes. Further development ... -
Modeling of Covalent Bonding in Solids by Inversion of Cohesive Energy Curves
(American Physical Society, 1996)We provide a systematic test of empirical theories of covalent bonding in solids using an exact procedure to invert ab initio cohesive energy curves. By considering multiple structures of the same material, it is possible ...