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Post-doctoral Position in Psychoacoustics
University of California, Los Angeles
The UCLA Voice Perception Laboratory (the Bureau of Glottal Affairs) has an opening for a post-doctoral fellow, beginning no sooner than January, 2012. Initial appointment will be for one year, with renewal for a second year contingent on performance. The ideal candidate will have a strong interest in the empirical study of voice quality and its relationship to voice production and acoustics, and will enjoy the process of experimentation. Completion of the PhD degree prior to assuming the position is required.

The primary goal of the project supporting this position is to develop a psychoacoustic model of overall voice quality that can be linked theoretically and empirically to the physical changes in vocal fold vibration that cause perceived changes in quality. This psychoacoustic model will specify a set of perceptually-important acoustic parameters that combine to replicate and thereby quantify the overall, integral quality of a voice. We will assess the relationship between changes in the values of model parameters and changes in the perceived extent to which a voice deviates from normal quality. This will provide an explanatory model specifying how acoustic parameters combine and interact perceptually to determine the location of any voice sample along a continuum from “better” to “worse.” Finally, we will investigate the link between perceptually-important spectral changes and the associated alterations in glottal configuration, in order to identify targets for remediation that have the highest likelihood of producing vocal improvement during treatment.

Although the primary focus of the position is voice perception, the voice group at UCLA is highly interdisciplinary, and includes experts in linguistics and cognitive science, speech-language pathology, otolaryngology, mechanical and electrical engineering, and physics. In addition to perceptual research, facilities are available for high-speed imaging, physical and computational modeling, tissue engineering, in vivo and ex vivo modeling, and aeroacoustic studies, and collaborative interdisciplinary research is encouraged. Fellows may reserve up to 25% of their time to develop their own projects in these other areas.

Interested candidates should contact Jody Kreiman by email at jkreiman@ucla.edu.
jkreiman@ucla.edu

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Post-doctoral Position in Lithotripsy Research
Indiana University School of Medicine (Indianapolis)
A post-doctoral position (2 years minimum commitment) is available at the Indiana University School of Medicine (Indianapolis) for basic and applied research on the mechanisms of shock wave action in shock wave lithotripsy (SWL). SWL is utilized in clinical urology for the non‐invasive treatment of kidney stones. Our work is focused on determining the mechanisms of shock wave action in SWL, with the goal of improving the efficiency and safety of patient treatment. This project is supported by an NIH Program Project Grant (PPG) now in its 15th year of competitive funding. The research is multidisciplinary, highly collaborative and includes investigators at IU‐Indianapolis, Methodist Hospital of Indianapolis, the Applied Physics Laboratory University of Washington (Drs. Mike Bailey, Tom Matula, Larry Crum), Boston University (Dr. Robin Cleveland), CalTech (Dr. Tim Colonius) and the University of Illinois at Champaign‐Urbana (Dr. Jon Freund).

This search is to identify an individual with expertise in physics and acoustics to assist the Indianapolis group in conducting in vitro and laboratory animal experiments. Projects include characterization of lithotripter shock waves within the body, assessment of the SW‐threshold for renal injury in SWL, and fundamental studies on the mechanisms of SW action in stone breakage and tissue injury.

Key words:
• Shock wave lithotripsy • Mechanisms of shock wave action • Cavitation in stone breakage and s tissueres ge damage • Acoustic characterization of shock wave lithotripters • Fiber‐optic probe hydrophone • High‐speed digital imaging • Ultrasound imaging • Passive cavitation detection • In vitro model systems • Experimental animals • Kidney stones • Stone disease •Urology

Aspects of our research can be seen at http://lithotripsy.anatomy.iupui.edu

Contact:
James A. McAteer, Ph.D.
Professor
Department of Anatomy and Cell Biology
Indiana University School of Medicine
635 Barnhill Dr. MS 5055
Indianapolis, IN 46202‐5120

mcateer@anatomy.iupui.edu
317‐274‐7935


Post‐Doctoral Position in MR-guided interstitial ultrasonic cMUT-based probes for the thermal ablation of tumors
Institut national de la santé et de la recherche médicale (Lyon, France)
ASIMUT (Advanced Surgery with Interstitial capacitive Micromachined Ultrasonic Transducers) is a multi-institutional project funded by the French National Agency for Research. The project is a collaboration between three main partners researching therapeutic applications of medical ultrasound. The key objective of the project is to develop MR-guided interstitial ultrasonic probes using cMUT technology for the thermal ablation of cancerous tumors. Although cMUTs have been utilized for imaging, their characteristics such as low losses and broad bandwidths make them also desirable for therapeutic applications. These intrinsic advantages as well as the potential ease of miniaturization make them ideal for interstitial devices.

The 2-year post-doctoral position will be located in Lyon, France at INSERM Unit 556 and will begin on January 1st, 2011. The postdoctoral position will be involved in working on several aspects of the project including: defining, through numerical modeling, specifications of the interstitial device; developing the electronics for driving the multi-element probe for conformal heating; performing in vitro tests for acoustically characterizing the device; and performing in vivo tests under MR guidance. The preferred candidate will have a Ph.D. in biomedical, electrical or mechanical engineering and experience in ultrasound physics.

INSERM is the only French public organization entirely dedicated to biological, medical and public health research. Within this context, Unit 556 specializes in applications of biomedical ultrasound to therapy and is a world leader in developing methods and devices for this purpose (Example : AblathermTM for treating prostate cancer with HIFU).

Contact:
Jean-Yves CHAPELON (jean-yves.chapelon@inserm.fr)
Cyril LAFON (cyril.lafon@inserm.fr / +33 4 72 68 19 20)
Inserm – Unité de recherche U556
151, Cours Albert Thomas
69424 Lyon Cedex 03, France

Post‐Doctoral Support and Fellowships in Oceanographic Research
Woods Hole Oceanographic Institution (Woods Hole, Massachusetts)
Eighteen-month Postdoctoral Scholar awards are offered to recipients of new or recent doctorates in the fields of chemistry, engineering, geology, geophysics, mathematics, meteorology, physics, and biology as well as oceanography. The awards are designed to further the education and training of the applicant with primary emphasis placed on the individual's research promise. There are 5-10 such post-doctoral positions made available every year and they span across all of the ocean sciences, including acoustics.

The application deadline is once per year around January.  This is very competitive, so applicants need to approach a potential advisor well in advance of the deadline. 

More information can be found here.