Subjective quality evaluation for voice communication over MANET

Due to the dynamic and mutihop nature of the Mobile Ad-hoc Network (MANET), voice communication over MANET may encounter many challenges. We set up a subjective quality evaluation model using ITU-T E-model with extension. And through simulation in NS-2, we evaluate how the following factors impact voice quality in MANET: the number of hops, the number of route breakages, the number of communication pairs and the background traffic. Using AODV as the underlying routing protocol, and with the MAC layer changed from 802.11 DCF to 802.11e EDCF, we observe that 802.11e is more suitable for implementating voice communication over MANET. © 2005 IEEE.

WLAN / WMAN Integration Architecture and Traffic Control for Voice Transmission

The popular technologies Wi-Fi and WiMAX for realization of WLAN and WMAN respectively are much different, but they could compliment each other providing competitive wireless access for voice traffic. The article develops the idea of WLAN/WMAN (Wi-Fi/WiMAX) integration. WiMAX is offering a backup for the traffic overflowing from Wi-Fi cells located into the WiMAX cell. Overflow process is improved by proposed rearrangement control algorithm applied to the Wi-Fi voice calls. There are also proposed analytical models for system throughput evaluation and verification of the effectiveness using WMAN as a backup for WLAN overflow traffic and the proposed call rearrangement algorithm as well.

A kivonulás-tiltakozás-hűség fogalomhármas közgazdaságtani relevanciája a 21. században = The relevance of "exit, voice and loyalty" theory in 21st-century economics

A dolgozat a politikatudomány és közgazdaság-tudomány határán álló kivonulás-tiltakozás-hűség modell lényegét járja körbe. Az Albert O. Hirschman által felépített gondolati keret szemléleti frissessége és sajátos megközelítési módja rendkívül termékenyítően hatott az elmúlt évtizedekben a társadalomtudományok fejlődésére. Mégis viszonylag periferikus helyet foglal el a közgazdaság-tudományon belül, miközben például a rendszerváltás és az azt követő társadalmi feszültségek megjelenése szempontjából is sokoldalúan használható fogalmi keretről van szó. A válság indukálta turbulens környezet még inkább rávilágít arra, hogy ma is időszerű perspektívát kínál a hanyatlás politikai gazdaságtana, azaz hasznos elemzési kapaszkodó nyújt az úgynevezett Hirschman-trilemma a társadalmi és gazdasági folyamatok értelmezéséhez. ________ The article concerns the "exit, voice, and loyalty" concept, which straddles the border of political science and economics. This theoretical framework, invented by Albert O. Hirschman, has exercised a fruitful influence in the social sciences in the last few decades, through its fresh features and original approach. However, it holds a peripheral position in economics and plays an undervalued role in eco-nomic education in Hungary, even though it can be flexibly applied in analyses of such phenomena as the economic transition and the ensuing social tensions. Moreover the very turbulence of the conditions brought about by the crisis show that the political economy of decline offers a relevant perspective, so that the Hirschman trilemma is a practical analytical tool for understanding social and economic processes.

A „kivonulás, tiltakozás, hűség” koncepció és a „kapitalizmus változatai” elmélet közti kapcsolat (The connection between the ‘Exit, Voice, and Loyalty’ conception and the ‘Varieties of Capitalism’ theory)

Tanulmányunkban az Albert 0. Hirschman által kialakított „kivonulás, tiltakozás, hűség” koncepció metaelméleti felhasználásával a „kapitalizmus változatai” elméletet vesszük bírálat alá. Egyrészt arra mutatunk rá, hogy már a különböző piacgazdasági modellek tipologizálásához használt vállalatelméleti dimenziójú elemzések is építkeznek a Hirschman-trilemmából, másrészt arra hívjuk fel a figyelmet, hogy olyan sajátos eszközről van szó, amely a tőke- és munkaerő-piaci folyamatok elemzésére támaszkodva új perspektívát is kínál a kapitalista gazdaságok komparatív vizsgálatához. A dolgozat terjedelmi okokból az empirikus kutatásokat megalapozó elméleti alapozásra szorítkozik. ____ In our study we deal with the critical analysis of the “varieties of capitalism” theory by using the “exit, voice, and loyalty” meta-theory invented by Albert O. Hirschman. The paper emphasizes that on the one hand the analyses of the theory of the firm and business used for the classification of distinct market models are also building upon the “Hirschman trilemma”, and on the other hand, it draws attention to the fact that the Hirschmanian method based on labor market and capital market offers a new perspective for the comparative analysis of capitalist economies. The focus of the article is only the theoretical foundation of empirical studies as a result of limitation of scope.

The moderate voice of John Sherman and the Republican agenda 1855-1898

Republican John Sherman, United States Congressman, Senator, Treasury Secretary, and Secretary of State had a political career of major importance from 1855 to 1898, yet there have been only casual references by historians and only two biographies of him, with the most recent published in 1902. From a strong Whig Party background, he was first elected to the United States House of Representatives in 1854; switching to the Republicans that same year. Then elevated to the Senate in 1861, he served in that body throughout the Civil War and Reconstruction when he was the most important voice of party unity and moderation. In 1877, the new President Rutherford Hayes appointed Sherman Secretary of the Treasury. He returned to the Senate after the Hayes administration where he sat for the following 15 years. In this particularly notable period, he not only led the upper house, but he engineered more bills in Congress which bore his name than any other member of either house. These included the critically important Sherman Silver Purchase Act, the Sherman Anti-Trust Act and Sherman Inter-State Commerce Act. In 1897 he left the Senate finally when William McKinley appointed him Secretary of State. ^ Through this long, distinguished career, Sherman was involved in all the important legislation that brought the country through the Civil War and Reconstruction and into the post-war world of the Gilded Age of rapid industrialization, and urban growth, Politically, he never strayed far from the nationalistic and economic principles of the Whig Party, and brought both these values to bear in the Republican Party that dominated American political life from 1860 to 1900. Similarly, party loyalty and loyalty to the President always characterized his service. He was indeed, an exemplar of political and statesmanship. ^ While research for this dissertation included review of both journal and monographic literature, its basis lies more critically in primary research in unpublished archival material in repositories from Maine to Ohio, in particular the Library of Congress. ^

Quality of experience evaluation of voice communication: an affect-based approach

Voice communication systems such as Voice-over IP (VoIP), Public Switched Telephone Networks, and Mobile Telephone Networks, are an integral means of human tele-interaction. These systems pose distinctive challenges due to their unique characteristics such as low volume, burstiness and stringent delay/loss requirements across heterogeneous underlying network technologies. Effective quality evaluation methodologies are important for system development and refinement, particularly by adopting user feedback based measurement. Presently, most of the evaluation models are system-centric (Quality of Service or QoS-based), which questioned us to explore a user-centric (Quality of Experience or QoE-based) approach as a step towards the human-centric paradigm of system design. We research an affect-based QoE evaluation framework which attempts to capture users' perception while they are engaged in voice communication. Our modular approach consists of feature extraction from multiple information sources including various affective cues and different classification procedures such as Support Vector Machines (SVM) and k-Nearest Neighbor (kNN). The experimental study is illustrated in depth with detailed analysis of results. The evidences collected provide the potential feasibility of our approach for QoE evaluation and suggest the consideration of human affective attributes in modeling user experience.

One Voice, Two Attitudes: Perceptions of Spanish and English among Cuban Americans in Miami , Lecture by Phillip M. Carter

This flyer promotes the event "One Voice, Two Attitudes: Perceptions of Spanish and English among Cuban Americans in Miami Lecture by Phillip M. Carter" hosted by the Cuban Research Institute.

A recital of selected repertoire for the mezzo-soprano voice

JOHANN SEBASTIAN BACH Buss und Reu, St Matthew Passion Es ist vollbracht, St John Passion FRANZ JOSEPH HAYDN O luna lucente, Il Mondo della luna ROBERT SCHUMANN Gedichte der Königin Maria Stuart Abschied von Frankreich Nach der Geburt ihres Sohnes An die Königin Elisabeth Abschied von der Welt Gebet STEFAN WOLPE Simeini kahotam al libeha, Two Songs for Alto and Piano SRUL IRVING GLICK "...i never saw another butterfly... " To Olga Yes, That's The Way Things Are The Little Mouse On A Sunny Evening Narrative The Butterfly LEILA LUSTIG Wretched Highway WILLIAM BOLCOM The Actor George

Program notes and translations for a graduate voice recital

"Ghi ii sole dal Gange" "O cessate dipiagarmi" "Spesso vibra per suo gioco" Alessandro Scarlatti (1660-1725) "Must the winter come so soon"? from Vanessa Samuel Barber (1910-1981) Two Songs from Mirabai Songs "It's True I Went to the Market" "Don t Go, Don t Go" John Harbison (b.1938) El amor brujo "Cancidn del amor dolido" "Cancidn delfuegofatuo" "Danza del juego del amor" "Las campanas del amanecer " Manuel de Falla (18 76-1946) INTERMISSION "Standchen" from Leise flehen meine Lieder "Du bist die Ruh" D776 "Gretchen am Spinnrade" D257 Franz Schubert (1797-1828) "Una voce pocofa" from Il barbiere di Siviglia Gioachino Rossini (1792-1868) La Regata Veneziana - Three songs in Venetian dialect "Anzoleta avanti la regata" "Anzoleta co passa la regata" "Anzoleta dopo la regata"

The bass as a melodic voice in jazz : extended program notes for thesis recital

This thesis discusses the use of the bass as a melodic instrument in jazz. It focuses on seven compositions performed for a Master's recital on March 22, 2010. For each selection, I provide a brief biography of the composer, information about the song and insight on performance practice. I examine the advanced techniques pioneered by innovative bassists and explore ways in which they can be used to further exploit the melodic potential of the bass in a jazz context. A compact disc recording of the recital is included.

A recital of selected repertoire for the soprano voice

Vado, ma dove? W.A. Mozart (1756-1791) Auf dem Strom Franz Schubert (1797-1828) Canciones clásicas españolas Fernando Obradors (1897-1945) Del cabello más sutil La mi sola, Laureola Al amor INTERMISSION Quatre Poémes Hindous Maurice Delage (1879-1961) I. Madras II. Lahore III. Benares IV. Jeypur Wild Swans Ricky Ian Gordon (b. 1956) The Red Dress Once I Was

Representation and participation in child care proceedings: what about the voice of the parents?

In Ireland, the Constitution guarantees very strong rights to parents and the family, and there has been a long and unfortunate history of failures to adequately protect children at risk. As a result, there has been much discussion in recent years about the need to improve legal mechanisms designed to protect the rights of children. By comparison, little attention has been given to establishing whether the theoretically strong rights of parents translate into strongly protected rights in practice. This paper presents new empirical evidence on the manner in which child care proceedings in Ireland balance the rights and interests of children and parents, including the rates at which orders are granted, the frequency of and conditions in which legal representation is provided, and the extent to which parents are able to actively participate in proceedings. A number of systemic issues are identified that restrict the capacity of the system to emphasise parental rights and hear the voice of parents to the extent that would be expected when looking at the legal provisions in isolation.

Hearing the Child's Voice: Their Lived Experience in the Pediatric Intensive Care Unit

Background: More than 200,000 children are admitted annually to Pediatric Intensive Care Units (PICUs) in the US. Research has shown young children can provide insight into their hospitalization experiences; child reports rather than parental reports are critical to understanding the child’s experience. Information relating to children’s perceptions while still in the PICU is scarce. Aims: The purpose of this qualitative study was to investigate school age children’s and adolescents’ perceptions of PICU while in the PICU; changes in perceptions after transfer to the General Care Unit (GCU); differences in perceptions of school age children/adolescents and those with more invasive procedures. Methods: Interviews were conducted in PICU within 24-48 hours of admission and 24-48 hours after transfer to GCU. Data on demographics, clinical care and number/types of procedures were obtained. Results: Participants were 7 school age children, 13 adolescents; 10 Hispanic; 13 males. Five overarching themes: Coping Strategies, Environmental Factors, Stressors, Procedures/Medications, and Information. Children emphasized the importance of peer support and visitation; adolescents relied strongly on social media and texting. Parent visits sometimes were more stressful than peer visits. Video games, TV, visitors, and eating were diversional activities. In the PICU, they wanted windows to see outside and interesting things to see on the ceiling above them. Children expressed anticipatory fear of shots and procedures, frustration with lab work, and overwhelming PICU equipment. Number of child responses was higher in PICU (927) than GCU (593); the largest difference was in Environmental Factors. Variations between school age children and adolescents were primarily in Coping Strategies, especially in social support. Number of GCU procedures were the same (8 children) or greater (2 children) than PICU procedures. Discussion: Admission to PICU is a very stressful event. Perceptions from children while still in PICU found information not previously found in the literature. Longitudinal studies to identify children’s perceptions regarding PICU hospitalization and post-discharge outcomes are needed.