A synthetic-natural hybrid oscillator in human cells

Synthetic vs natural scaffolds for human limbal stem cells

AIM To investigate the impact of synthetic electrospun polyurethane (PU) and polycaprolactone (PCL) nanoscaffolds, before and after hydrolytic surface modification, on viability and differentiation of cultured human eye epithelial cells, in comparison with natural scaffolds: fibrin and human amniotic membrane. METHODS Human placenta was taken at elective cesarean delivery. Fibrin scaffolds we...

A synthetic low-frequency mammalian oscillator

Circadian clocks have long been known to be essential for the maintenance of physiological and behavioral processes in a variety of organisms ranging from plants to humans. Dysfunctions that subvert gene expression of oscillatory circadian-clock components may result in severe pathologies, including tumors and metabolic disorders. While the underlying molecular mechanisms and dynamics of comple...

- D Image Models and Compression { Synthetic Hybrid or Natural Fit ?

Synthetic Natural Hybrid Video Processings for Virtual Teleconferencing Systems

In this paper, we propose powerful virtual image processing tools, which can be useful for designing new virtual teleconferencing systems with limited bandwidth requirements. We present an integrated approach that mixes real images with computer graphics in order to obtain an efficient and highly realistic model-based coding scheme, while offering new possibilities from the point of view of the...

3-d Imaging and Compression { Synthetic Hybrid or Natural Fit?

International Workshop on Synthetic Natural Hybrid Coding and Three Dimensional Imaging IWSNHC3DI'99, Santorini, Greece, September 1999. This paper highlights recent advances in image compression aided by 3-D geometry information. As two examples, we present a modelaided video coder for e cient compression of head-and-shoulder scenes and a geometry-aided coder for 4-D light elds for image-based...