We present single-channel approaches to robust automatic speech recognition (ASR) in reverberant environments based on non-intrusive estimation of the clarity index (C50). Our best performing method includes the estimated value of C50 in the ASR feature vector and also uses C50 to select the most suitable ASR acoustic model according to the reverberation level. We evaluate our method on the REV...

Pluronic block copolymers (triblock copolymers of poly(ethylene oxide) and poly(propylene oxide)) exhibit a chemosensitizing effect on multidrug resistant cell lines. Changes in membrane permeability are hypothesized to be responsible because inhibition of drug transport mediated by both the multidrug-resistance-associated protein and the P-glycoprotein drug efflux system has been observed. To ...

We previously reported that thymidine kinase (TK) activity in a spontaneously TK-deficient (TK-) murine tumor cell line (called L61-M) could be partially restored following brief treatment of the cells in vitro with the potent DNA-hypomethylating agent 5-azacytidine. We now show here that similar results may be obtained by exposing cells in vitro to periodate-oxidized adenosine, a potent inacti...

UNLABELLED Haloarcula japonica, an extremely halophilic archaeon that requires high concentrations of NaCl for growth, accumulates the C50 carotenoid bacterioruberin (BR). By homology analysis, a gene cluster, including c0507, c0506, and c0505, was found and predicted to be involved in the synthesis of bacterioruberin. To elucidate the function of the encoded enzymes, we constructed Ha. japonic...

In regime II of Baxter's solution of the hard-hexagon model [Baxter, R. J. (1980) J. Phys. A 13, L61-L70], he presents six conjectures identifying certain one-dimensional partition functions with infinite products. An outline of the proof of these conjectures is given here.

To characterize polyclonal antisera for two-point immunoturbidimetric applications, we defined, as functions of antiserum concentration, two parameters derived from dose-response curves: the maximum bichromatic optical response, Tmax, and the antigen concentration in the region of excess antibody corresponding to one-half Tmax, or C50. We raised monospecific polyclonal antisera in goats against...

Dual-tone Multi-frequency DTMF signals are used in touch-tone telephones as well as many other areas such a s i n teractive control, telephone banking, and pager system. As analog telephone lines are converted to digital, researchers became interested in digital DTMF detectors. There are many digital DTMF detecting algorithms, but most of them do not comply with the related International Teleco...