Price dynamics for North American oriented strand board markets are examined. The role of transactions costs are explored vis-à-vis the law of one price. Nonlinearities induced by unobservable transactions costs are modeled by estimating time-varying smooth transition autoregressions (TV-STARs). Results indicate that nonlinearity and structural change are important features of these markets; pr...

This paper presents an algorithm for generating trajectories for multi-degree of freedom spatial linkages, termed constrained parallel manipulators. These articulated systems are formed by supporting a workpiece, or end-effector, with a set of serial chains, each of which imposes a constraint its movement. Our goal is to plan trajectories for systems that have workspaces ranging from two throug...

One account of spatial concentration focuses on productivity advantages arising from market size. We investigate this for 40 regions of Japan. Our results identify important effects of a region’s own size, as well as cost linkages between producers and suppliers of inputs. Productivity links to a more general form of ‘market potential’ or Marshall-ArrowRomer externalities do not appear to be ro...

This paper describes a grammatically motivated system for extracting opinionated text. A technique for extracting appraisal expressions has been described in previous work, using manually constructed syntactic linkages to locate targets of the opinions. The system extracts attitudes using a general lexicon—and some candidate targets using a domain specific lexicon—and finds additional targets u...

Conbercept is a genetically engineered homodimeric protein for the treatment of wet age-related macular degeneration (wet AMD) that functions by blocking VEGF-family proteins. Its huge, highly variable architecture makes characterization and development of a functional assay difficult. In this study, the primary structure, number of disulfide linkages and glycosylation state of conbercept were ...

[1] The spatiotemporal evolution of Southern Hemisphere climate variability is diagnosed based on the use of the NCEP reanalysis (1948–2000) dataset. Using the MTMSVD analysis method, significant narrowband variability is isolated from the multi-variate dataset. It is found that the ENSO signal exhibits statistically significant behavior at quasiquadrennial (3–6 yr) timescales for the full time...

In this paper, we propose the modular development of the direct violation correction method for the distributed computation of the forward dynamics simulations of constrained mechanical systems. We exploit the natural spatial parallelism of closed-chain linkages, initially, for the modular development of overall dynamics and subsequently, for the distributed numerical simulation of the dynamics...

This is a collection of impressions on the career of J. G. H. Wessels and his work in the areas of cell wall metabolism and apical morphogenesis. It highlights the finding of massive cell wall glucan metabolism during differentiation, the discovery of covalent linkages between wall polymers, the changes in chemical and physical properties of the wall at the fungal apex, and the steady-state mod...