930 research outputs found
Correction of murine mucopolysaccharidosis type IIIA central nervous system pathology by intracerebroventricular lentiviral-mediated gene delivery
No full textAbstract not availableChantelle McIntyre, Ainslie L. K. Derrick-Roberts, Sharon Byers, Donald S. Anso
Author and Activist Derrick Jensen
No full textplenary talk at the Michigan Social Justice Conference 2009Derrick talks about his book Endgame, in which he outlines the reasons for the collapse of industrial capitalism and the destruction of the environment.Progressive Alliance of Students at UMhttp://deepblue.lib.umich.edu/bitstream/2027.42/62080/2/DerrickJensen-2009apr04-QandA.mp4http://deepblue.lib.umich.edu/bitstream/2027.42/62080/1/DerrickJensen-2009apr04-talk.mp
In Memory of Professor Derrick Bell
No full textDerrick Bell—law teacher, mentor, scholar, activist, author, loving husband and father—larger than the sum of his many parts. The articles in this symposium are fitting tributes to his legacy and valuable contributions to Derrick’s memory
Duration of Blackfoot /s/: A comparison of assibilant, affricate, singleton, geminate and syllabic /s/ in Blackfoot
No full textA study comparing the duration of assibilant, affricate,
singleton, geminate and syllabic /s/ from the citation speech of
one speaker demonstrated significant differences in the
duration of geminate /s/ (µ = 300 ms), syllabic /s/ (µ = 240
ms), singleton /s/ (µ = 155 ms), and affricate /s/ (µ = 130 ms).
The results show the expected contrast between short and long
/s/, and between inter-consonantal long /s/ and affricate /s/,
lending support to the Blackfoot syllabic /s/ analysis in
Derrick (2006). Length measurements also showed a
significant symmetrical relationship between vowel adjacency
and long /s/ duration, demonstrating an inverse relationship
between amplitude and duration of Blackfoot /s/. The cross linguistic implications for sibilants are significant and further
research with more participants, more languages and using
natural speech, into the relationship between duration and
intensity is indicated
She Gets the Girl
No full textAlex Blackwood is an undeniably courageous flirt. Molly Parker is a socially awkward compassionate soul. The duo strikes a deal that helps Molly explore her flirtatious nature and helps Alex prove to her ex that she is not self-centered. The question is: Do Molly and Alex want other people or each other? Author Alyson Derrick, a No. 1 New York Times best-selling author, depicts a beautiful dichotomy between wants and needs in romance.https://ecommons.udayton.edu/ul_popularromance/1050/thumbnail.jp
The influence of tongue position on trombone sound: A likely area of language influence
No full textThis paper builds on initial evidence of First
Language influence on brass playing presented in
Heyne and Derrick (2013) [13] by indicating how
tongue positioning might affect trombone timbre.
Ultrasound imaging of the tongue was used to
compare vowel production and sustained trombone
notes for three participants, one each of New
Zealand English, Tongan and Japanese, whose
musical production was also analyzed acoustically.
Comparison of the sound spectra produced by
two semiprofessional players shows that the player
using a higher, more retracted tongue position
displays a larger component of high frequencies in
the produced sound spectrum. We believe that this
could explain why brass players can notice
differences between players from different language
backgrounds
Forecasting banknotes
No full textA central bank’s liquidity forecast is important in ensuring that it supplies the banking system’s need for central bank money. Banknote (or currency in circulation) demand is the largest and for some central banks the most variable component of the liquidity forecast. Accurate forecasting of banknotes is essential in ensuring an accurate liquidity forecast and in turn effective monetary policy implementation. This Handbook discusses these issues and outlines a structural time series state space (STSSS) model which is now used by central banks including the Bank of England and ECB to forecast banknotes (currency in circulation).Forecasting banknotes
Tri-modal Speech: Audio-visual-tactile Integration in Speech Perception
No full textSpeech perception is a multi-sensory experience. Visual information enhances [Sumby and Pollack (1954). J. Acoust. Soc. Am. 25, 212–215] and interferes [McGurk and MacDonald (1976). Nature 264, 746–748] with speech perception. Similarly, tactile information, transmitted by puffs of air arriving at the skin and aligned with speech audio, alters [Gick and Derrick (2009). Nature 462, 502–504] auditory speech perception in noise. It has also been shown that aero-tactile information influences visual speech perception when an auditory signal is absent [Derrick, Bicevskis, and Gick (2019a). Front. Commun. Lang. Sci. 3(61), 1–11]. However, researchers have not yet identified the combined influence of aero-tactile, visual, and auditory information on speech perception. The effects of matching and mismatching visual and tactile speech on two-way forced-choice auditory syllable-in-noise classification tasks were tested. The results showed that both visual and tactile information altered the signal-to-noise threshold for accurate identification of auditory signals. Similar to previous studies, the visual component has a strong influence on auditory syllable-in-noise identification, as evidenced by a 28.04dB improvement in SNR between matching and mismatching visual stimulus presentations. In comparison, the tactile component had a small influence resulting in a 1.58dB SNR match-mismatch range. The effects of both the audio and tactile information were shown to be additive
Visual-tactile integration in speech perception : evidence for modality neutral speech primitives.
No full text© 2016 Acoustical Society of America. Audio-visual [McGurk and MacDonald (1976). Nature 264, 746-748] and audio-tactile [Gick and Derrick (2009). Nature 462(7272), 502-504] speech stimuli enhance speech perception over audio stimuli alone. In addition, multimodal speech stimuli form an asymmetric window of integration that is consistent with the relative speeds of the various signals [Munhall, Gribble, Sacco, and Ward (1996). Percept. Psychophys. 58(3), 351-362; Gick, Ikegami, and Derrick (2010). J. Acoust. Soc. Am. 128(5), EL342-EL346]. In this experiment, participants were presented video of faces producing /pa/ and /ba/ syllables, both alone and with air puffs occurring synchronously and at different timings up to 300 ms before and after the stop release. Perceivers were asked to identify the syllable they perceived, and were more likely to respond that they perceived /pa/ when air puffs were present, with asymmetrical preference for puffs following the video signal - consistent with the relative speeds of visual and air puff signals. The results demonstrate that visual-tactile integration of speech perception occurs much as it does with audio-visual and audio-tactile stimuli. This finding contributes to the understanding of multimodal speech perception, lending support to the idea that speech is not perceived as an audio signal that is supplemented by information from other modes, but rather that primitives of speech perception are, in principle, modality neutral
Aero-tactile integration during speech perception: Effect of response and stimulus characteristics on syllable identification
No full textIntegration of auditory and aero-tactile information during speech perception has been documented
during two-way closed-choice syllable classification tasks [Gick and Derrick (2009). Nature 462,
502–504], but not during an open-choice task using continuous speech perception [Derrick,
O’Beirne, Gorden, De Rybel, Fiasson, and Hay (2016). J. Acoust. Soc. Am. 140(4), 3225]. This
study was designed to compare audio-tactile integration during open-choice perception of individual syllables. In addition, this study aimed to compare the effects of place and manner of articulation. Thirty-four untrained participants identified syllables in both auditory-only and audio-tactile
conditions in an open-choice paradigm. In addition, forty participants performed a closed-choice
perception experiment to allow direct comparison between these two response-type paradigms.
Adaptive staircases, as noted by Watson [(1983). Percept. Psychophys. 33(2), 113–120] were used
to identify the signal-to-noise ratio for identification accuracy thresholds. The results showed no
significant effect of air flow on syllable identification accuracy during the open-choice task, but
found a bias towards voiceless identification of labials, and towards voiced identification of velars.
Comparison of the open-choice results to those of the closed-choice task show a significant
difference between both response types, with audio-tactile integration shown in the closed-choice
task, but not in the open-choice task. These results suggest that aero-tactile enhancement of speech
perception is dependent on response type demands. copyright 2019 Acoustical Society of Americ
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