Lip synchronization is the determination of the motion of the mouth and tongue during speech. It can be deduced from the speech signal without phonemic analysis, and irrespective of the content of the speech. Our method is based on the observation that the position of the mouth over a short interval of time can be correlated with the basic shape of the spectrum of the speech over that same inte...

Procedures are given for estimating the two dimensions of the angular size of a synchrotron light pattern as a function of wavelength for each of two polarization components. It is found that horizontal angular sizes (measured in the orbital plane) are substantially larger than corresponding vertical angular sizes. Except for wavelengths which are considerably smaller than a critical wavelength...

We study the horizontal Laplacian ∆ associated to the Hopf fibration S → S with arbitrary Chern number k. We use representation theory to calculate the spectrum, describe the heat kernel and obtain the complete heat trace asymptotics of ∆ . We express the Green functions for associated Poisson semigroups and obtain bounds for their contraction properties and Sobolev inequalities for ∆ . The bou...

A remarkable feature of human vision is that the retina and brain have evolved circuitry to extract useful spatial and spectral information from signals originating in a photoreceptor mosaic with trichromatic constituents that vary widely in their relative numbers and local spatial configurations. A critical early transformation applied to cone signals is horizontal-cell-mediated lateral inhibi...

Sequencing of DNA from 15 expanded-spectrum cephalosporin (e.g., ceftriaxone)-resistant Salmonella isolates obtained in the United States revealed that resistance to ceftriaxone in all isolates was mediated by cmy-2. Hybridization patterns revealed three plasmid structures containing cmy-2 in these 15 isolates. These data suggest that the spread of cmy-2 among Salmonella strains is occurring th...

PURPOSE This study examined use of a speaker's direction of gaze during word learning by boys with fragile X syndrome (FXS), boys with nonsyndromic autism spectrum disorder (ASD), and typically developing (TD) boys. METHOD A fast-mapping task with follow-in and discrepant labeling conditions was administered. We expected that the use of speaker gaze would lead to participants selecting as the...

An effective theory is proposed, combining the standard gauge group SU(3)C ⊗ SU(2)L ⊗ U(1)Y with a horizontal discrete symmetry. By assigning appropriate charges under this discrete symmetry to the various fermion fields and to (at least) two Higgs doublets, the broad spread of the fermion mass and mixing angle spectrum can be explained as a result of suppressed, non-renormalisable terms. A par...

The solar radiation reaching the ground level on horizontal surfaces is of paramount importance in many applications, from climate to health (ESRA, 2000), and of course for the production of energy: heat, electricity. This communication deals with the amount of energy received during a day on a surface of 1 m2 located at ground surface and integrated over the whole spectrum of the solar radiati...

advantages and disadvantages of using “stokes parameters” in exploration of inertia-gravity wave properties are discussed in this paper. the survey is carried out on an inertia-gravity wave event (igws in what follows) that occurred over iran from 7 to 9 february 2012. applying this technique for investigation of atmospheric igws was recommended by vincent and fritts (1987) and then developed b...

A structural and spectroscopic analysis of the anti-tuberculosis drug pyrazinamide (PZA) was carried out. The PZA molecule was predicted theoretically to possess two conformers differing by internal rotation around the C-C( horizontal lineO) bond, with the E conformer (C(s) symmetry point group; N-C-C horizontal lineO dihedral: 180 degrees ) being ca. 30 kJ mol(-1) more stable than the Z form (...