January 2023 - BNC-all - ecn.purdue.edu

Upcoming Seminar Announcement
by Araji, Sandy Salem 20 Jan '23

20 Jan '23

Dear All – Attached please find details of an upcoming Seminar by Kim Per Hansen of NKT Photonics that might be of interest to you: Date: Monday, January 23, 2023 Time: 10.00 am Location: BRK 2001 Thanks, Sandy Araji

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FW: Seminars in Hearing Research (SHRP) Aditi Gargeshwari. 1/26/23
by Abrol, Sangeeta Saddul 19 Jan '23

19 Jan '23

Good Afternoon! Attached is the Seminar Speaker - Aditi Gargeshwari. 1/26/23. Thank you! Christine Seminars in Hearing Research at Purdue (SHRP) Date: Thursday, January 26, 2023 Time: 10:30 - 11:20 AM Location: LYLE 1150 Speaker: Aditi Gargeshwari, PhD Student SLHS Title: Threshold Determination Using Binaural Simultaneous Multifrequency Auditory Brainstem Evoked Response Abstract: The auditory brainstem response (ABR) is a gold standard test for objectively estimating hearing thresholds due to its high sensitivity and specificity. The time taken to record frequency-specific ABRs using the conventional single-frequency monaural approach is typically 45-60 minutes. Methods previously used to reduce testing time using increased rate, or chained stimuli have not been popular in clinical settings due to additional hardware and software requirements. We propose a multifrequency chained stimuli approach which presents several stimuli of different frequency to the two ears in an interleaved manner to maximize acquisition efficiency, significantly reduce test time, and minimize response adaptation. This paradigm can be easily generated in most commercial ABR systems currently used in clinics. Our novel method and stimuli together create a recording paradigm that can yield robust and lower binaural ABR thresholds, resulting in a quick and effective clinical tool. This presentation will discuss data recorded from 30 normal hearing young adults will be presented. The ongoing implementation of automatic peak detection will also be discussed during the presentation. Zoom link for remote attendees: https://purdue-edu.zoom.us/j/4326340458 Meeting ID: 432 634 0458 The working schedule is available here: https://purdue.edu/TPAN/hearing/shrp_schedule<http://ogww.mj.am/lnk/AU8AAEukm7AAAchk2HAAALFJlZgAAYCsFQMAnDnUAATD7ABh_T90y…> The titles and abstracts of the talks will be added here: https://purdue.edu/TPAN/hearing/shrp_abstracts<http://ogww.mj.am/lnk/AU8AAEukm7AAAchk2HAAALFJlZgAAYCsFQMAnDnUAATD7ABh_T90y…> Christine Reidy Senior Administrative Assistant, Bindley Bioscience Center BIND, 1203 W. State Str., West Lafayette, IN 47907 [A close up of a logo Description automatically generated]<http://www.purdue.edu/>

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FW: Hearing Seminar 1/19/23. Hari Bharadwaj.
by Abrol, Sangeeta Saddul 13 Jan '23

13 Jan '23

Date: 1/19/23 Place: LYLE 1150 Time: 10:30 - 11-20 AM Or Zoom link listed below Speaker: Hari Bharadwaj, Assistant Professor, University of Pittsburgh Title: Physiological Characterization of Persistent Tinnitus Abstract: Tinnitus is the perception of sounds (e.g., ringing, buzzing, hissing, roaring) without an external acoustic stimulus. Roughly 10 percent of the adult population of the United States has experienced tinnitus episodes lasting at least five minutes in the past year. Furthermore, an estimated 20% of audiological visits to urban clinical centers occur with tinnitus as the primary complaint. Although age, noise exposure, and audiometric hearing loss are risk factors for tinnitus, the connection is indirect, prompting speculation about the intervening neural processes that may be more proximally related to the percept. This presentation will consider different theoretical accounts that have been proposed for tinnitus perception in the literature and describe preliminary data from our work in support of each. Specific aims for a planned research proposal that seeks to document the physiological characteristics of persistent tinnitus will be discussed with the goal of obtain critical feedback from the audience. Zoom link for remote attendees: https://purdue-edu.zoom.us/j/4326340458 Meeting ID: 432 634 0458 The working schedule is available here: https://purdue.edu/TPAN/hearing/shrp_schedule<http://ogww.mj.am/lnk/AU8AAEukm7AAAchk2HAAALFJlZgAAYCsFQMAnDnUAATD7ABh_T90y…> The titles and abstracts of the talks will be added here: https://purdue.edu/TPAN/hearing/shrp_abstracts<http://ogww.mj.am/lnk/AU8AAEukm7AAAchk2HAAALFJlZgAAYCsFQMAnDnUAATD7ABh_T90y…>

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Your help is need!
by Abrol, Sangeeta Saddul 13 Jan '23

13 Jan '23

Dear Birck Community, As many of us know engineering staff, Jerry Shepard, and had closely worked with him in the past years, it is saddening to know that he has continuously been battling brain cancer for several months. He underwent two surgeries at the Mayo Clinic but his cancer has progressed and he is getting weaker. The family is looking into Hospice Care for him now, and we're seeking financial help to make this burden easier on Jerry's family. A go-fund-me link is set up for donations: https://gofund.me/4d8f586c Please help if you can. Thank you and best regards, Zhihong Zhihong Chen Professor of Elmore Family School of Electrical and Computer Engineering Mary Jo and Robert L. Kirk Director of Birck Nanotechnology Center Purdue University 1205 West State Street West Lafayette, IN 47907-2057 Tel: (765)494-0772<tel:%28765%29494-0772> Fax: (765)496-8299<tel:%28765%29496-8299> Email: zhchen(a)purdue.edu<mailto:zhchen@purdue.edu>

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FW: Interested in NSAC Intramural Sports? SP2023
by Abrol, Sangeeta Saddul 11 Jan '23

11 Jan '23

Dear All, Welcome back! NSAC is excited to host events for the nanotechnology community this semester. If you are interested in joining our Grad/Fac/Staff intramural sports teams, please fill out the interest form below. This is not binding, simply a method to get a headcount for which sports we could field teams for. We have a long, storied tradition of volleyball excellence, but we are exploring the option of additionally going out for: Basketball Walleyball Sports Trivia Softball Turf Indoor Soccer Ultimate Frisbee Form link: https://forms.gle/6ec9v6Hn9cDoLrwB8 Also, this Friday, we will be hosting a coffee social to reintroduce everyone to each other and hang out. Hope to see you there! NSAC Exec. Committee

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FW: Seminars in Hearing Research. Alexander L. Francis. 1/12/23. 10:30 - 11:20 AM. Lyle 1150.
by Abrol, Sangeeta Saddul 03 Jan '23

03 Jan '23

Good Morning, Date: Thursday, January 12th Speaker: Alexander Francis, Professor, SLHS Title: Preliminary findings from a study relating the effects of hearing loss and listening conditions on postural sway to fall risk in older adults Abstract: Hearing loss is associated with increased fall risk in older adults, but multiple mechanisms have been proposed to account for this. Hearing loss may reduce spatial awareness and/or increase cognitive load, both of which may increase fall risk but may be ameliorated by hearing aid use. Here we present preliminary results from an in-progress study comparing fall incidence in daily life with postural sway measured under various listening conditions in older adults with and without hearing aids. Seventeen adults aged 65 to 81 years (7 using bilateral hearing aids, 10 without) stood with feet together and eyes closed, listening to noise vocoded speech (4, 8, 16 channels) and spatially distributed environmental sounds (silence, 1, 3 sources) for 1 minute per condition while postural sway was recorded in the lab. Participants subsequently reported daily near-falls and falls for 4 months. Results suggest hearing aid users show less postural sway, potentially indicating greater rigidity which has been associated with greater fall risk. However, near-fall incidence was lower for hearing aid users. Further analyses showed higher near-fall rates associated with higher auditory thresholds, but hearing aid use may mitigate this trend. We are currently collecting more data with a wider variety of participants. Zoom link for remote attendees: https://purdue-edu.zoom.us/j/4326340458 Meeting ID: 432 634 0458 The working schedule is available here: https://purdue.edu/TPAN/hearing/shrp_schedule<http://ogww.mj.am/lnk/AU8AAEukm7AAAchk2HAAALFJlZgAAYCsFQMAnDnUAATD7ABh_T90y…> The titles and abstracts of the talks will be added here: https://purdue.edu/TPAN/hearing/shrp_abstracts<http://ogww.mj.am/lnk/AU8AAEukm7AAAchk2HAAALFJlZgAAYCsFQMAnDnUAATD7ABh_T90y…>

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Post-Recess Opening
by Reger, Ronald K 03 Jan '23

03 Jan '23

Dear Birck Research Community, Welcome back to Birck after the holiday recess period! We have restarted the Toxic Gas Monitoring system and all hazardous gases have been turned on, so the building is in normal research operating mode. We wish you all a very happy and prosperous new year!

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