Automatic Detection of Laryngeal Pathology on Sustained Vowels Using Short-Term Cepstral Parameters: Analysis of Performance and Theoretical Justification

The majority of speech signal analysis procedures for automatic detection of laryngeal pathologies mainly rely on parameters extracted from time domain processing. Moreover, calculation of these parameters often requires prior pitch period estimation; therefore, their validity heavily depends on the robustness of pitch detection. Within this paper, an alternative approach based on cepstral- domain processing is presented which has the advantage of not requiring pitch estimation, thus providing a gain in both simplicity and robustness. While the proposed scheme is similar to solutions based on Mel-frequency cepstral parameters, already present in literature, it has an easier physical interpretation while achieving similar performance standards

ACEs & trauma-informed practices for children & educators in early childhood education

Adverse Childhood Experiences (ACEs), consist of the negative and traumatic events that have happened in the early years of a person’s life. The focus here is on childhood trauma. There are many types of trauma, including, physical, sexual and emotional abuse, physical and emotional neglect, exposure to domestic and general violence, as well as household substance abuse, mental illness, racism, parental separation/divorce, and others. Trauma produces both physical and psychological challenges and can disrupt the brain’s development from birth through 18 years of age, causing permanent damage and issues, which we will discuss throughout this thesis. This thesis will explore the role of trauma in early childhood education from the perspective of the teachers who work with children who have suffered significant trauma in their lives

Improving collaboration between ecosystem service communities and the IPBES science-policy platform

The end of the first working program of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) provided an opportunity to draw lessons from its work. This perspective paper captures insights from ecosystem services (ES) researchers and practitioners, largely drawing from the Europeancontext (referred to herein as ‘ES community’), on this key science–policy interface. We synthesize reflections from a workshop on how (i) IPBES can engage the ES community; (ii) the ES community can engage with IPBES; and (iii) individual scientists can contribute. We note that IPBES constitutes a great advancement towards multidisciplinarity and inclusivity in ES research and practice. Key reflections for IPBES are that funding and visibility at ES research events could be improved, the contribution and selection processes could be more transparent, and communication with experts improved. Key reflections for the ES community include a need to improvepolicy-relevance by integrating more social scientists, researchers from developing countries, early-career scientists and policy-makers. Key reflections directed towards individual scientists include contributing (pro)actively to science–policy inter-face initiatives such as IPBES and increasing transdisciplinary research. These reflections intend to contribute to the awareness of challenges and opportunities for institutions, groups and individuals working on E

Get Rid of Unanimity Rule: The Superiority of Majority Rules with Veto Power

We study unanimous decision making under incomplete information. We argue that all unanimous decision rules are not equivalent. We show that majority rules with veto power are (i) Pareto superior to commonly used unanimous rules, and (ii) ex-ante efficient in a broad class of situations

Actitudes alimentarias y vulnerabilidad al modelo de delgadez transmitido por los medios de futuras maestras de educación primaria

La teoría sociocultural señala la importancia del modelo de belleza femenino transmitido por los medios en las actitudes hacia la alimentación. La presente investigación indaga sobre esta relación en una muestra de futuras maestras de primaria. Los resultados muestran una vulnerabilidad elevada hacia el modelo estético difundido por los medios y unas tendencias dietéticas poco saludables en este colectivo, apreciándose, además, una alta correlación entre estas dos variables

Design of asymmetrical directional couplers on ridge and strip SOI technology with high-dimensional variation tolerance

[EN] The supermode analysis of asymmetrical directional couplers (ADC) based on SOI technology for strip and ridge structures at 1550 nm is herein reported, targeting to reduce ADC device fabrication requirements. The reported analysis based on supermodes permits us to assess the sensitivity of the ADC coupling efficiency by calculating the index difference between even and odd supermodes. Optimum designs have been found for 100 and 400 nm gaps, respectively, capable of converting and (de) multiplexing both TE0 and TE1 modes taking into account the width, gap, height, and slab thickness variations produced with respect to the nominal design. (C) 2018 Optical Society of AmericaMinisterio de Economia y Competitividad (MINECO) (TEC2015-70858-C2-1-R, RTC-2014-2232-3).García-Rodríguez, D.; Corral, JL.; Llorente, R. (2018). Design of asymmetrical directional couplers on ridge and strip SOI technology with high-dimensional variation tolerance. Optics Letters. 43(11):2491-2494. https://doi.org/10.1364/OL.43.002491S249124944311Essiambre, R.-J., Kramer, G., Winzer, P. J., Foschini, G. J., & Goebel, B. (2010). Capacity Limits of Optical Fiber Networks. Journal of Lightwave Technology, 28(4), 662-701. doi:10.1109/jlt.2009.2039464Richardson, D. J. (2016). New optical fibres for high-capacity optical communications. Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 374(2062), 20140441. doi:10.1098/rsta.2014.0441Mizuno, T., Takara, H., Sano, A., & Miyamoto, Y. (2016). Dense Space-Division Multiplexed Transmission Systems Using Multi-Core and Multi-Mode Fiber. Journal of Lightwave Technology, 34(2), 582-592. doi:10.1109/jlt.2015.2482901Winzer, P. J. (2014). Making spatial multiplexing a reality. Nature Photonics, 8(5), 345-348. doi:10.1038/nphoton.2014.58Melati, D., Alippi, A., Annoni, A., Peserico, N., & Melloni, A. (2017). Integrated all-optical MIMO demultiplexer for mode- and wavelength-division-multiplexed transmission. Optics Letters, 42(2), 342. doi:10.1364/ol.42.000342Garcia-Rodriguez, D., Corral, J. L., & Llorente, R. (2017). Mode Conversion for Mode Division Multiplexing at 850 nm in Standard SMF. IEEE Photonics Technology Letters, 29(11), 929-932. doi:10.1109/lpt.2017.2694605Garcia-Rodriguez, D., Corral, J. L., Griol, A., & Llorente, R. (2017). Dimensional variation tolerant mode converter/multiplexer fabricated in SOI technology for two-mode transmission at 1550  nm. Optics Letters, 42(7), 1221. doi:10.1364/ol.42.001221Le, Y.-S., Wang, Z., Li, Z.-Y., Li, Y., Li, Q., Cui, C., & Wu, C.-Q. (2018). Three-mode all-optical (de)multiplexing on a SOI chip. Optics Communications, 406, 173-176. doi:10.1016/j.optcom.2017.04.059Sun, C., Yu, Y., Ye, M., Chen, G., & Zhang, X. (2016). An ultra-low crosstalk and broadband two-mode (de)multiplexer based on adiabatic couplers. Scientific Reports, 6(1). doi:10.1038/srep38494Hanzawa, N., Saitoh, K., Sakamoto, T., Matsui, T., Tsujikawa, K., Uematsu, T., & Yamamoto, F. (2015). PLC-Based Four-Mode Multi/Demultiplexer With LP11 Mode Rotator on One Chip. Journal of Lightwave Technology, 33(6), 1161-1165. doi:10.1109/jlt.2014.2378281Yamashita, Y., Fujisawa, T., Makino, S., Hanzasa, N., Sakamoto, T., Matsui, T., … Saitoh, K. (2017). Design and Fabrication of Broadband PLC-Based Two-Mode Multi/Demultiplexer Using a Wavefront Matching Method. Journal of Lightwave Technology, 35(11), 2252-2258. doi:10.1109/jlt.2016.2641461Zanzi, A., Brimont, A., Griol, A., Sanchis, P., & Marti, J. (2016). Compact and low-loss asymmetrical multimode interference splitter for power monitoring applications. Optics Letters, 41(2), 227. doi:10.1364/ol.41.000227Hanzawa, N., Saitoh, K., Sakamoto, T., Matsui, T., Tsujikawa, K., Koshiba, M., & Yamamoto, F. (2014). Mode multi/demultiplexing with parallel waveguide for mode division multiplexed transmission. Optics Express, 22(24), 29321. doi:10.1364/oe.22.029321Wang, J., He, S., & Dai, D. (2014). On-chip silicon 8-channel hybrid (de)multiplexer enabling simultaneous mode- and polarization-division-multiplexing. Laser & Photonics Reviews, 8(2), L18-L22. doi:10.1002/lpor.201300157Pan, C., & Rahman, B. M. A. (2016). Accurate Analysis of the Mode (de)multiplexer Using Asymmetric Directional Coupler. Journal of Lightwave Technology, 34(9), 2288-2296. doi:10.1109/jlt.2016.2530852Mikkelsen, J. C., Sacher, W. D., & Poon, J. K. S. (2014). Dimensional variation tolerant silicon-on-insulator directional couplers. Optics Express, 22(3), 3145. doi:10.1364/oe.22.003145Xu, K. (2014). Corrections to «On the Design and Optimization of Three-Terminal Light-Emitting Device in Silicon CMOS Technology» [Jul/Aug 14 8201208]. IEEE Journal of Selected Topics in Quantum Electronics, 20(4), 422-422. doi:10.1109/jstqe.2014.2318271Corral, J. L., Garcia-Rodriguez, D., & Llorente, R. (2016). Mode-Selective Couplers for Two-Mode Transmission at 850 nm in Standard SMF. IEEE Photonics Technology Letters, 28(4), 425-428. doi:10.1109/lpt.2015.249708

Asymptotic Values of Subharmonic Functions

Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/135520/1/plms0404.pd

Mode-selective couplers for two-mode transmission at 850 nm in standard SMF

© 2016 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.The optimal design of a low-loss fused fiber mode-selective coupler for two-mode fiber transmission in the 850-nm band is presented. The coupler is based on precise phase matching of the propagation constants in each arm of a weakly fused fiber coupler. The designed component permits both mode converter and mode multiplexer/demultiplexer operation, thus enabling modal multiplexing transmission in this band with no additional component. The presented design is evaluated by simulation considering two types of structures, leading to asymmetric and symmetric coupler configurations. Mode converter and mode multiplexer operation is achieved with 93.5% efficiency in the band of 845 855 nm. Mode demultiplexer operation is achieved with an extinction ratio better than 20.4 dB in the same band.This work was supported by the Spanish Ministerio de Economia y Competitividad under Project RTC-2014-2232-3 HIDRASENSE and Project TEC2012-38558-C02-01.Corral, JL.; García Rodríguez, D.; Llorente Sáez, R. (2016). Mode-selective couplers for two-mode transmission at 850 nm in standard SMF. IEEE Photonics Technology Letters. 28(4):425-428. https://doi.org/10.1109/LPT.2015.2497080S42542828