Browsing FAS Scholarly Articles by Title
Now showing items 7004-7023 of 18292
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Hidden Complications of Thought Suppression
(Guilford Press, 2009)Although the suppression of thoughts may seem to be an effective solution, this strategy can lead to an exacerbation of the very thought that one is attempting to suppress. This ironic effect is the most obvious unwanted ... -
Hidden conformal symmetry of the Kerr black hole
(American Physical Society (APS), 2010)Extreme and very-near-extreme spin J Kerr black holes have been conjectured to be holographically dual to two-dimensional (2D) conformal field theories (CFTs) with left and right central charges cL=cR=12J. In this paper ... -
Hidden Cost of U.S. Agricultural Exports: Particulate Matter from Ammonia Emissions
(American Chemical Society, 2014)We use a model of agricultural sources of ammonia \((NH_3)\) coupled to a chemical transport model to estimate the impact of U.S. food export on particulate matter concentrations \((PM_{2.5})\). We find that food export ... -
Hidden Fermi Surfaces in Compressible States of Gauge-Gravity Duality
(American Physical Society, 2012)General scaling arguments, and the behavior of the thermal entropy density, are shown to lead to an infrared metric holographically representing a compressible state with hidden Fermi surfaces. This metric is characterized ... -
Hidden in an Envelope: Gratitude Payments to Medical Doctors in Hungary
(Central European University Press, 2000) -
Hidden Market Design
(AAAI Press, 2010)The next decade will see an abundance of new intelligent systems, many of which will be market-based. Soon, users will interact with many new markets, perhaps without even knowing it: when driving their car, when listening ... -
Hidden sector gaugino condensation and the model-independent axion
(Elsevier BV, 1998)In the effective field theory framework, we consider the effect of supersymmetry breaking via gaugino condensation and supergravity in the hidden sector gauge group on the hidden sector vacuum angle θ h. The θ h parameter ... -
Hidden Stochastic Nature of a Single Bacterial Motor
(American Physical Society, 2006)The rotary flagellar motor of Escherichia coli bacterium switches stochastically between the clockwise (CW) and counterclockwise (CCW) direction. We found that the CW and CCW intervals could be described by a gamma ... -
Hidden symmetry and magnetospectroscopy of quantum wells near filling factor v = 2
(American Physical Society (APS), 2000)he magnetoluminescence spectra of symmetric quantum wells containing an electron gas show an abrupt changeover from Landau-level behavior (i.e., linear shift of energy with magnetic field) to quadratic (excitonlike) behavior ... -
Hidden symmetry and the magnetically induced “Mott transition” in quantum wells containing an electron gas
(Elsevier BV, 2000)The magnetoluminescence spectra of symmetric quantum wells containing an electron gas show an abrupt transition from Landau level behavior (i.e. a linear shift of energy with field) to quadratic (exciton-like) behavior as ... -
Hierarchical and Variational Geometric Modeling with Wavelets
(Association for Computing Machinery, 1995)This paper discusses how wavelet techniques may be applied to a variety of geometric modeling tools. In particular, wavelet decompositions are shown to be useful for hierarchical control point or least squares editing. In ... -
Hierarchical architecture influences calcium dynamics in engineered cardiac muscle
(SAGE Publications, 2011)Changes in myocyte cell shape and tissue structure are concurrent with changes in electromechanical function in both the developing and diseased heart. While the anisotropic architecture of cardiac tissue is known to ... -
Hierarchical Bayes Models with Many Instrumental Variables
(National Bureau of Economic Research, 1996)In this paper, we explore Bayesian inference in models with many instrumental variables that are potentially weakly correlated with the endogenous regressor. The prior distribution has a hierarchical (nested) structure. ... -
Hierarchical Bayesian Inference in the Visual Cortex
(Optical Society of America, 2003)Traditional views of visual processing suggest that early visual neurons in areas V1 and V2 are static spatiotemporal filters that extract local features from a visual scene. The extracted information is then channeled ... -
Hierarchical Encoding in Visual Working Memory
(SAGE Publications, 2011-02-04)Influential models of visual working memory treat each item to be stored as an independent unit and assume that there are no interactions between items. However, real-world displays have structure that provides higher-order ... -
Hierarchical File Systems Are Dead
(USENIX Association, 2009)For over forty years, we have assumed hierarchical file system namespaces. These namespaces were a rudimentary attempt at simple organization. As users have begun to interact with increasing amounts of data and are ... -
A hierarchical finite mixture model that accommodates zero-inflated counts, non-independence, and heterogeneity
(Wiley-Blackwell, 2014)A number of mixture modeling approaches assume both normality and independent observations. However, these two assumptions are at odds with the reality of many data sets, which are often characterized by an abundance of ... -
Hierarchical honeycomb auxetic metamaterials
(Nature Publishing Group, 2015)Most conventional materials expand in transverse directions when they are compressed uniaxially resulting in the familiar positive Poisson’s ratio. Here we develop a new class of two dimensional (2D) metamaterials with ... -
Hierarchical recruitment of Plk4 and regulation of centriole biogenesis by two centrosomal scaffolds, Cep192 and Cep152
(National Academy of Sciences, 2013)Centrosomes play an important role in various cellular processes, including spindle formation and chromosome segregation. They are composed of two orthogonally arranged centrioles, whose duplication occurs only once per ... -
Hierarchical spacetime control
(Association for Computing Machinery, 1994)Specifying the motion of an animated linked figure such that it achieves given tasks (e.g., throwing a ball into a basket) and performs the tasks in a realistic fashion (e.g., gracefully, and following physical laws such ...