A circle graph is the intersection graph of a family of chords on a circle. There is no known characterization of circle graphs by forbidden induced subgraphs that do not involve the notions of local equivalence or pivoting operations. We characterize circle graphs by a list of minimal forbidden induced subgraphs when the graph belongs to one of the following classes: linear domino graphs, P4-t...

In this note, we prove that all 2× 2 monotone grid classes are finitely based, i.e., defined by a finite collection of minimal forbidden permutations. This follows from a slightly more general result about certain 2× 2 having two monotone cells in the same row.

We describe the precise shaping and mode-resolved amplitude and phase characterization of optical arbitrary waveforms by using a 20 GHz optical frequency comb and integrated 64 20 GHz channel arrayed waveguide grating pair. Complex waveforms with large variations in phase and amplitude between adjacent modes were generated and characterized. © 2007 Optical Society of America OCIS codes: 320.710...

We present the first experimental demonstration and characterization of the application of optical physical-layer network coding in coherent optical OFDM systems. It combines two optical OFDM frames to share the same link so as to enhance system throughput, while individual OFDM frames can be recovered with digital signal processing at the destined node.

Electrical methods for thermal characterization, like 3ω method, micro-bridge method and TET method have been widely used in the thermal property measurement, while always been limited by the electrical conductance of samples or other temperature dependent thermal resistors. As an optical method, Raman thermometry has been developed and broadly applied in thermal characterization in recent year...

Abnormal accumulation of alpha-synuclein has been hypothesized to underlie neuronal cell death and synaptic dysfunctional leading to motor and cognitive symptoms in synucleinopathies such as Parkinson’s Disease (PD), Dementia with Lewy Bodies (DLB), and Multiple Systems Atrophy (MSA). Transgenic mouse models with overexpression of alpha-synuclein have proved useful in characterizing the behavio...

We previously reported that the TATA-less rat xanthine dehydrogenase/oxidase (XDH/XO) promoter is organized with multiple initiator elements (Inr 1, 2, 3 and 4). Additionally, we identified six factor binding footprints in the upstream region of this promoter (FP 1-FP 6), two of which (FP 2 and FP 4) we showed to be C/EBP binding sites. In this report we continue our characterization of the XDH...