Estimation of Hearing Thresholds with Auditory Steady-State Responses to Narrow-Band Chirps in Children.

Objective: The aim of this study was to evaluate the utility of auditory steady-state responses (ASSRs) to narrow-band chirps (NB-chirps) for estimating hearing levels in children.

Design: Thresholds from the NB-chirp ASSR were evaluated in 30 sedated children with normal hearing or hearing loss. The correlation between the NB-chirp ASSR and pure-tone audiometry (PTA) thresholds was analyzed, and the difference score (DS) between these thresholds was calculated.

CO capture by Mn(i) and Re(i) complexes with a deprotonated triethanolamine ligand.

CO capture at low concentration by catalysts is potentially useful for developing photocatalytic and electrocatalytic CO reduction systems. We investigated the CO-capturing abilities of two complexes, -Mn(Xbpy)(CO)(OCHCHNR) and -Re(Xbpy)(CO)(OCHCHNR) (Xbpy = 4,4'-X-2,2-bipyridine and R = -CHCHOH), which work as efficient catalysts for CO reduction. Both complexes could efficiently capture CO even from Ar gas containing only low concentration of CO such as 1% to be converted into -M(Xbpy)(CO)(OC(O)OCHCHNR) (M = Mn and Re).

Fast Volumetric Feedback under Microscope by Temporally Coded Exposure Camera.

We developed a temporally coded exposure (TeCE) camera that can cope with high-speed focus variations of a tunable acoustic gradient index (TAG) lens. The TeCE camera can execute a very short exposure multiple times at an arbitrary timing during one shot. Furthermore, by accumulating the photoelectrons generated by each exposure, it is possible to maintain the brightness even with a short exposure time.

Novel and Efficient Chromium(II)-Mediated Desulfonylation of α-Sulfonyl Ketone.

A novel and efficient method for the Cr(II)-mediated desulfonylation of α-sulfonyl ketone by a Cr-ligand-Mn system has been developed during the course of process research on Halaven (eribulin mesylate). This reaction is dramatically accelerated in the presence of an appropriate bipyridyl-type ligand. This system is applicable to reduction of α-sulfur-substituted ketones.

Skin stimulation by the fluid powered self-excited oscillation and its effect on the human body.

A novel fluid power actuator called Flat Ring Tube (FRT) is introduced in this paper. The mechanism of FRT is so simple that it only needs a urethane flat tube and water pressure power source. No valves or switches are required.