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https://www.readbyqxmd.com/read/27915209/development-of-neural-population-activity-towards-self-organized-criticality
#1
Yuichiro Yada, Takeshi Mita, Akihiro Sanada, Ryuichi Yano, Ryohei Kanzaki, Douglas J Bakkum, Andreas Hierlemann, Hirokazu Takahashi
Self-organized criticality (SoC), a spontaneous dynamic state established and maintained in networks of moderate complexity, is a universal characteristic of neural systems. Such systems produce cascades of spontaneous activity that are typically characterized by power-law distributions and rich, stable spatiotemporal patterns (i.e., neuronal avalanches). Since the dynamics of the critical state confer advantages in information processing within neuronal networks, it is of great interest to determine how criticality emerges during development...
November 30, 2016: Neuroscience
https://www.readbyqxmd.com/read/27914422/modeling-of-oropharyngeal-articulatory-adaptation-to-compensate-for-the-acoustic-effects-of-nasalization
#2
Panying Rong, David P Kuehn, Ryan K Shosted
Hypernasality is one of the most detrimental speech disturbances that lead to declines of speech intelligibility. Velopharyngeal inadequacy, which is associated with anatomic defects such as cleft palate or neuromuscular disorders that affect velopharygneal function, is the primary cause of hypernasality. A simulation study by Rong and Kuehn [J. Speech Lang. Hear. Res. 55(5), 1438-1448 (2012)] demonstrated that properly adjusted oropharyngeal articulation can reduce nasality for vowels synthesized with an articulatory model [Mermelstein, J...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27914410/an-investigation-of-sex-differences-in-acoustic-features-in-black-capped-chickadee-poecile-atricapillus-chick-a-dee-calls
#3
Kimberley A Campbell, Allison H Hahn, Jenna V Congdon, Christopher B Sturdy
Sex differences have been identified in a number of black-capped chickadee vocalizations and in the chick-a-dee calls of other chickadee species [i.e., Carolina chickadees (Poecile carolinensis)]. In the current study, 12 acoustic features in black-capped chickadee chick-a-dee calls were investigated, including both frequency and duration measurements. Using permuted discriminant function analyses, these features were examined to determine if any features could be used to identify the sex of the caller. Only one note type (A notes) classified male and female calls at levels approaching significance...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27914384/piezoelectric-cylindrical-discs-and-solid-rods-dependence-of-the-resonance-frequencies-and-effective-coupling-coefficients-on-aspect-ratio
#4
Boris S Aronov, Corey L Bachand
Dependencies of the resonance frequencies and effective coupling coefficients for solid circular cylindrical piezoelements (discs) of finite size are considered as a function of their height-to-diameter aspect ratios, h/2a. At aspect ratios in the range of approximately 0.5 < h/2a < 1.5 the piezoelements are treated analytically, as a two degree-of-freedom coupled system by applying the coupled mode theory approach [Aronov, Bachand, and Brown, J. Acoust. Soc. Am. 126(6), 2983-2990 (2009)]. Results are presented as plots of resonance frequencies and effective coupling coefficients vs aspect ratios...
September 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27914088/murine-mycobacterium-marinum-infection-as-a-model-for-tuberculosis
#5
Julia Lienard, Fredric Carlsson
Mycobacteria are a major human health problem globally. Regarding tuberculosis the situation is worsened by the poor efficacy of current vaccine regimens and by emergence of drug-resistant strains (Manjelievskaia J et al, Trans R Soc Trop Med Hyg 110: 110, 2016; Pereira et al., Lancet Infect Dis 12:300-306, 2012; http://www.who.int/tb/publications/global_report/en/) undermining both disease-prevention and available treatments. Thus, increased basic understanding of mycobacterial-and particularly Mycobacterium tuberculosis-virulence strategies and pathogenesis is of great importance...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27913927/the-number-of-cycles-of-neoadjuvant-chemotherapy-is-associated-with-prognosis-of-stage-iiic-iv-high-grade-serous-ovarian-cancer
#6
Xia Xu, Fei Deng, Mengmeng Lv, Xiaoxiang Chen
OBJECTIVE: No consensus exists on the number of chemotherapy cycles to be administered before and after interval debulking surgery (IDS) in patients with advanced stage epithelial ovarian cancer. The present study aims to explore the optimal number of cycles of neoadjuvant chemotherapy (NAC) and post-operation chemotherapy to treat the International Federation of Gynecology and Obstetrics stage IIIc-IV high-grade serous ovarian cancer (HG-SOC). MATERIALS AND METHODS: A total of 129 IIIc-IV stage HG-SOC cases were retrospectively analyzed...
December 3, 2016: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/27913552/dao-k-ht-tyner-jw-what-s-different-about-atypical-cml-and-chronic-neutrophilic-leukemia-hematology-am-soc-hematol-educ-program-2015-2015-264-271
#7
(no author information available yet)
No abstract text is available yet for this article.
December 2, 2016: Hematology—the Education Program of the American Society of Hematology
https://www.readbyqxmd.com/read/27913021/climate-and-land-use-changes-effects-on-soil-organic-carbon-stocks-in-a-mediterranean-semi-natural-area
#8
Beatriz Lozano-García, Miriam Muñoz-Rojas, Luis Parras-Alcántara
A thorough knowledge of the effects of climate and land use changes on the soil carbon pool is critical to planning effective strategies for adaptation and mitigation in future scenarios of global climate and land use change. In this study, we used CarboSOIL model to predict changes in soil organic carbon stocks in a semi-natural area of Southern Spain in three different time horizons (2040, 2070, 2100), considering two general circulation models (BCM2 and ECHAM5) and three IPCC scenarios (A1b, A2, B2). The effects of potential land use changes from natural vegetation (Mediterranean evergreen oak woodland) to agricultural land (olive grove and cereal) on soil organic carbon stocks were also evaluated...
November 29, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27912779/ascites-regression-following-neoadjuvant-chemotherapy-in-prediction-of-treatment-outcome-among-stage-iiic-to-iv-high-grade-serous-ovarian-cancer
#9
Xia Xu, Fei Deng, Mengmeng Lv, Binhui Ren, Wenwen Guo, Xiaoxiang Chen
BACKGROUND: No consensus exists on the outcome-related factors of interval debulking surgery (IDS) in patients with advanced high-grade serous ovarian cancer (HG-SOC) who underwent neoadjuvant chemotherapy (NAC). This study aimed to explore the optimal timing for IDS and the prognosis-associated factors of International Federation of Gynecology and Obstetrics stage IIIc to IV HG-SOC patients. METHODS: A total of 160 IIIc to IV stage HG-SOC patients were retrospectively analyzed...
December 2, 2016: Journal of Ovarian Research
https://www.readbyqxmd.com/read/27910471/the-national-ignition-facility-modular-kirkpatrick-baez-microscope
#10
L A Pickworth, J Ayers, P Bell, N F Brejnholt, J G Buscho, D Bradley, T Decker, S Hau-Riege, J Kilkenny, T McCarville, T Pardini, J Vogel, C Walton
Current two-dimensional X-ray imaging at the National Ignition Facility (NIF) uses time resolved pinhole cameras with ∼10-25 μm pinholes. This method has limitations in the smallest resolvable features that can be imaged with reasonable photon statistics for inertial confinement fusion (ICF) applications. ICF sources have a broadband self-emission spectrum that causes the pinhole images obtained, through thin foil filters, to contain a similarly broadband spectrum complicating the interpretation of structure in the source...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910432/note-wide-range-and-high-resolution-on-chip-delay-measurement-circuit-with-low-supply-voltage-sensitivity-for-soc-applications
#11
Duo Sheng, Yu-Chan Hung
This paper presents an on-chip delay measurement (OCDM) circuit with a wide delay-measurement range, a high delay-measurement resolution and low supply-voltage sensitivity for efficient detection, and diagnosis in the high-performance system-on-chip (SoC). The proposed cascade-stage measurement structure can simultaneously achieve a delay-measurement range of several nanoseconds and a quantization resolution of several picoseconds. The proposed delay-measurement circuit has a high immunity to supply voltage variations without any additional calibration or self-biasing circuit...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27908087/erratum-analysis-and-modeling-of-255-ship-source-levels-from-an-acoustic-observatory-along-st-lawrence-seaway-j-acoust-soc-am-140-3-2002-2018-2016
#12
Yvan Simard, Nathalie Roy, Cédric Gervaise, Samuel Giard
No abstract text is available yet for this article.
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27908080/behavioral-manifestations-of-audiometrically-defined-slight-or-hidden-hearing-loss-revealed-by-measures-of-binaural-detection
#13
Leslie R Bernstein, Constantine Trahiotis
This study assessed whether audiometrically-defined "slight" or "hidden" hearing losses might be associated with degradations in binaural processing as measured in binaural detection experiments employing interaurally delayed signals and maskers. Thirty-one listeners participated, all having no greater than slight hearing losses (i.e., no thresholds greater than 25 dB HL). Across the 31 listeners and consistent with the findings of Bernstein and Trahiotis [(2015). J. Acoust. Soc. Am. 138, EL474-EL479] binaural detection thresholds at 500 Hz and 4 kHz increased with increasing magnitude of interaural delay, suggesting a loss of precision of coding with magnitude of interaural delay...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27908056/reconstruction-of-piano-hammer-force-from-string-velocity
#14
Antoine Chaigne
A method is presented for reconstructing piano hammer forces through appropriate filtering of the measured string velocity. The filter design is based on the analysis of the pulses generated by the hammer blow and propagating along the string. In the five lowest octaves, the hammer force is reconstructed by considering two waves only: the incoming wave from the hammer and its first reflection at the front end. For the higher notes, four- or eight-wave schemes must be considered. The theory is validated on simulated string velocities by comparing imposed and reconstructed forces...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27908052/visual-tactile-integration-in-speech-perception-evidence-for-modality-neutral-speech-primitives
#15
Katie Bicevskis, Donald Derrick, Bryan Gick
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...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27908051/internal-tides-and-deep-diel-fades-in-acoustic-intensity
#16
Andrew W White, Frank S Henyey, Rex K Andrew, James A Mercer, Peter F Worcester, Matthew A Dzieciuch, John A Colosi
A mechanism is presented by which the observed acoustic intensity is made to vary due to changes in the acoustic path that are caused by internal-tide vertical fluid displacements. The position in range and depth of large-scale caustic structure is determined by the background sound-speed profile. Internal tides cause a deformation of the background profile, changing the positions of the caustic structures-which can introduce intensity changes at a distant receiver. Gradual fades in the acoustic intensity occurring over timescales similar to those of the tides were measured during a low-frequency (284-Hz) acoustic scattering experiment in the Philippine Sea in 2009 [White et al...
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27908044/erratum-acoustic-radiation-potential-on-a-sphere-in-plane-cylindrical-and-spherical-standing-waves-j-acoust-soc-am-77-3-928-945-1985
#17
Martin B Barmatz, Peter Collas
No abstract text is available yet for this article.
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27908043/erratum-acoustic-levitation-in-the-presence-of-gravity-j-acoust-soc-am-86-2-777-787-1989
#18
Martin B Barmatz, Peter Collas
No abstract text is available yet for this article.
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27908041/erratum-experimental-verification-of-acoustic-trace-wavelength-enhancement-j-acoust-soc-am-138-6-3765-3772-2015
#19
Benjamin Cray
No abstract text is available yet for this article.
November 2016: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/27908029/in-situ-measurements-of-sediment-acoustic-properties-in-currituck-sound-and-comparison-to-models
#20
Kevin M Lee, Megan S Ballard, Andrew R McNeese, Thomas G Muir, Preston S Wilson, R Daniel Costley, Kent K Hathaway
In situ measurements of compressional and shear wave speed and attenuation were collected 30 cm below the water-sediment interface in Currituck Sound, North Carolina at two field locations having distinctly different sediment types: medium-to-fine-grained sand and fine-grained sand with approximately 10% mud content. Shear wave measurements were performed with bimorph transducers to generate and receive horizontally polarized shear waves in the 300 Hz to 1 kHz band, and compressional wave measurements were performed using hydrophones operated in the 5 kHz to 100 kHz band...
November 2016: Journal of the Acoustical Society of America
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