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Results 1 - 10
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2,353
Global Sourcing
- Journal of Political Economy
"... We present a North-South model of international trade in which differentiated products are developed in the North. Sectors are populated by final-good producers who differ in productivity levels. On the basis of productivity and sectoral characteristics, firms decide whether to integrate into the pr ..."
Abstract
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Cited by 334 (15 self)
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We present a North-South model of international trade in which differentiated products are developed in the North. Sectors are populated by final-good producers who differ in productivity levels. On the basis of productivity and sectoral characteristics, firms decide whether to integrate
Computing geodesics and minimal surfaces via graph cuts
- in International Conference on Computer Vision
, 2003
"... Geodesic active contours and graph cuts are two standard image segmentation techniques. We introduce a new segmentation method combining some of their benefits. Our main intuition is that any cut on a graph embedded in some continuous space can be interpreted as a contour (in 2D) or a surface (in 3D ..."
Abstract
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Cited by 251 (26 self)
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an interesting link between several branches of mathematics-differential geometry, integral geometry, and combinatorial optimization. The main technical problem is solved using Cauchy-Crofton formula from integral geometry. 1.
Bayesian inference on phylogeny and its impact on evolutionary biology.
- Science
, 2001
"... 1 As a discipline, phylogenetics is becoming transformed by a flood of molecular data. These data allow broad questions to be asked about the history of life, but also present difficult statistical and computational problems. Bayesian inference of phylogeny brings a new perspective to a number of o ..."
Abstract
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Cited by 235 (10 self)
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combinations of branch length and substitution model parameter values. It is all but impossible to do this analytically. Fortunately, a number of numerical methods are available that allow the posterior probability of a tree to be approximated, the most useful of which is Markov chain Monte Carlo [MCMC (4
The Large-Scale Structure of Semantic Networks: Statistical Analyses and a Model of Semantic Growth
- Cognitive Science
"... We present statistical analyses of the large-scale structure of three types of semantic networks: word associations, WordNet, and Roget's thesaurus. We show that they have a small-world structure, characterized by sparse connectivity, short average path-lengths between words, and strong local ..."
Abstract
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Cited by 209 (2 self)
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We present statistical analyses of the large-scale structure of three types of semantic networks: word associations, WordNet, and Roget's thesaurus. We show that they have a small-world structure, characterized by sparse connectivity, short average path-lengths between words, and strong
The relative performance of Bayesian and parsimony approaches when Sampling Characters . . .
, 2006
"... We tested whether it is beneficial for the accuracy of phylogenetic inference to sample characters that are evolving under different sets of parameters, using both Bayesian MCMC (Markov chain Monte Carlo) and parsimony approaches. We examined differential rates of evolution among characters, differe ..."
Abstract
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Cited by 3 (0 self)
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, differential character-state frequencies and character-state space, and differential relative branch lengths among characters. We also compared the relative performance of parsimony and Bayesian analyses by progressively incorporating more of these heterogeneous parameters and progressively increasing
A critical role for the right fronto-insular cortex in switching between central-executive and default-mode networks.
- Proc Natl Acad Sci USA
, 2008
"... Cognitively demanding tasks that evoke activation in the brain's central-executive network (CEN) have been consistently shown to evoke decreased activation (deactivation) in the default-mode network (DMN). The neural mechanisms underlying this switch between activation and deactivation of larg ..."
Abstract
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Cited by 178 (1 self)
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-specific responses in the CEN, DMN, and SN. Activations in the CEN and SN were found to be accompanied by robust deactivation in the DMN at the movement transition [ Latency Analysis Reveals Early Activation of the rFIC Relative to the CEN and DMN. First, we identified differences in the latency of the event-related
On the length of an external branch in the beta-coalescents
, 2012
"... In this paper, we consider Beta(2 − α,α) (with 1 < α < 2) and related Λ-coalescents. If T (n) denotes the length of an external branch of the n-coalescent, we prove the convergence of n α−1 T (n) when n tends to ∞, and give the limit. To this aim, we give asymptotics for the number σ (n) of ..."
Abstract
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Cited by 4 (3 self)
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In this paper, we consider Beta(2 − α,α) (with 1 < α < 2) and related Λ-coalescents. If T (n) denotes the length of an external branch of the n-coalescent, we prove the convergence of n α−1 T (n) when n tends to ∞, and give the limit. To this aim, we give asymptotics for the number σ (n
Covariation of Branch Lengths in Phylogenies of Functionally Related Genes
, 2009
"... Recent studies have shown evidence for the coevolution of functionally-related genes. This coevolution is a result of constraints to maintain functional relationships between interacting proteins. The studies have focused on the correlation in gene tree branch lengths of proteins that are directly i ..."
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Recent studies have shown evidence for the coevolution of functionally-related genes. This coevolution is a result of constraints to maintain functional relationships between interacting proteins. The studies have focused on the correlation in gene tree branch lengths of proteins that are directly
Oscillator-based memory for serial order
- Psychological Review
, 2000
"... A computational model of human memory for serial order is described (OSCillator-based Associative Recall [OSCAR]). In the model, successive list items become associated to successive states of a dynamic learning-context signal. Retrieval involves reinstatement of the learning context, successive sta ..."
Abstract
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Cited by 138 (3 self)
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, transposition gradients, item similarity effects, the effects of item lag and separation in judgments of relative and absolute recency, probed serial recall data, distinctiveness effects, grouping effects at various temporal resolutions, longer term memory for serial order, list length effects, and the effects
Variability in the length of flower bud differentiation period of common buckwheat
- Fagopyrum
, 1998
"... reproductive growth, vegetative growth. A method on the basis of morphological observation to describe developmental stages of growing point in common buckwheat was proposed. On the basis of the proposed method, transition of developmental phase from vegetative to reproductive phase was investigated ..."
Abstract
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Cited by 4 (2 self)
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was investigated. Effect of day length on de velopmental process was also investigated. Transition of developmental phase occurred later in primary branches, especially in those from higher node order of main stem, than in main stem. Flower bud differentiation in primary branches was initiated only after certain
Results 1 - 10
of
2,353
