Digital Commons Network^™

Articulatory-To-Acoustic Relations In Response To Speaking Rate And Loudness Manipulations, Antje Mefferd, Jordan R. Green

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: This investigation determined the strength of association between tongue kinematic and speech acoustic changes in response to speaking rate and loudness manipulations. Performance changes in the kinematic and acoustic domains were measured using two aspects of speech production presumably affecting speech clarity: phonetic specification and variability.
Method: Tongue movements for the vowels /ia/ were recorded in ten healthy adults during habitual, fast, slow and loud speech using three dimensional electromagnetic articulography. To determine articulatory-to-acoustic relations for phonetic specification, we correlated changes in lingual displacement with changes in acoustic vowel distance. To determine articulatory-toacoustic relations for phonetic variability, we correlated …

Laryngeal Somatosensory Deficits In Parkinson’S Disease: Implications For Speech Respiratory And Phonatory Control, Michael J. Hammer, Steven M. Barlow

Department of Special Education and Communication Disorders: Faculty Publications

Parkinson’s disease (PD) is often associated with substantial impairment of speech respiratory and phonatory control. However, the degree to which these impairments are related to abnormal laryngeal sensory function is unknown. This study examined whether individuals with PD exhibited abnormal and more asymmetric laryngeal somatosensory function compared with healthy controls, and whether these deficits were associated with disease and voice severity. Nineteen PD participants were tested and compared with 18 healthy controls. Testing included endoscopic assessment of laryngeal somatosensory function, with aerodynamic and acoustic assessment of respiratory and phonatory control, and clinical ratings of voice and disease severity. PD participants …

Using Visual Scene Displays To Create A Shared Communication Space For A Person With Aphasia, Karen Hux, Megan Buechter, Sarah Wallace, Kristy S.E. Weissling

Department of Special Education and Communication Disorders: Faculty Publications

Background: Low-tech visual scene displays (VSDs) combine contextually rich pictures and written text to support the communication of people with aphasia. VSDs create a shared communication space in which a person with aphasia and a communication partner co-construct messages.

Aims: The researchers examined the effect of low-tech VSDs on the content and quality of communicative interactions between a person with aphasia and unfamiliar communication partners.

Methods & Procedures: One person with aphasia and nine unfamiliar communication partners engaged in short, one-on-one conversations about a specified topic in one of three conditions: shared-VSDs, non-shared-VSDs, and no-VSDs. Data included discourse analysis scores …

China’S Promise, Geremie R. Barme

China Beat Blog: Archive 2008-2012

The year 2009 was marked by a series of important anniversaries in the history of the People’s Republic of China. Some of these were commemorated with due pomp and circumstance in the official media and dissected at length during learned gatherings and discussions. Others, those events that I think of as ‘dark anniversaries’, passed by in an atmosphere of heightened alertness, surveillance and official anxiety. Dark anniversaries are the signposts of quelled protests, social unrest and state violence, events such as the 1959 rebellion in Lhasa, the shutting down of the Xidan Democracy Wall in Beijing in 1979, the tragedy …

New Release: Coming To Terms With The Nation

China Beat Blog: Archive 2008-2012

On Monday, China’s decennial census began, sending six million census workers door-to-door in a quest to record and count the country’s population over the course of only ten days. A key issue in this census, according to some observers, will be placing China’s population in terms of place of residence. One thing analysts are waiting to find out, for example, is how many citizens of the PRC are described as living in cities rather than villages, as this census, which comes after a period of massive rural-to-urban migration, is supposed to describe where people physically live and work, not their …

China Beat Is Heading To The Beach . . .

China Beat Blog: Archive 2008-2012

. . . well, not exactly. But we are taking a short vacation, to focus on wrapping up the academic year here at UC Irvine. We’ll be back online June 6 (though we will keep up our Twitter feed during the break, so follow us today!). Before we go, a few links we’d like to share:

The Mother Tongues Of Modernity: Modernism, Transnationalism, Translation, Roland K. Végső

Department of English: Faculty Publications

The relation of modernism to immigrant literatures should not be conceived in terms of an opposition between universalistic and particularistic discourses. Rather, we should explore what can be called a modernist transnationalism based on a general universalist argument. Two examples of this transnationalism are explored side by side: Ezra Pound’s and Anzia Yezierska’s definitions of the aesthetic act in terms of translation. The readings show that the critical discourses of these two authors are structured by a belief in universalism while showing opposite possibilities, both generated by modernist transnationalism. The essay concludes that we now need to interpret the cultures …

Accuracy Of Perceptually Based And Acoustically Based Inspiratory Loci In Reading, Yu-Tsai Wang, Jordan R. Green, Ignatius S. B. Nip, Ray D. Kent, Jane Finley Kent, Cara Ullman

Department of Special Education and Communication Disorders: Faculty Publications

Investigations of speech often involve the identification of inspiratory loci in continuous recordings of speech. The present study investigates the accuracy of perceptually determined and acoustically determined inspiratory loci. While wearing a circumferentially vented mask connected to a pneumotach, 16 participants read two passages. The perceptually determined and acoustically determined inspiratory loci were compared with the actual loci of inspiration, which were determined aerodynamically. The results showed that (1) agreement across all three judges was the most accurate of the approaches considered here for detecting inspiratory loci based on listening; (2) the most accurate pause duration threshold for detecting inspiratory …

From Energy Gradient And Natural Selection To Biodiversity And Stability Of Ecosystems, Bo Deng

Department of Mathematics: Faculty Publications

The purpose of this paper is to incorporate well-established ecological principles into a foodweb model consisting of four trophic levels --- abiotic resources, plants, herbivores, and carnivores. The underlining principles include Kimura's neutral theory of genetic evolution, Liebig's Law of the Minimum for plant growth, Holling's functionals for herbivore foraging and carnivore predation, the One-Life Rule for all organisms, and Lotka-Volterra's model for intraand interspecific competitions. Numerical simulations of the model led to the following statistical findings: (a) particular foodwebs can give contradicting observations on biodiversity and productivity, in particular, all known functional forms -- - positive, negative, sigmoidal, and …

Tracing Cochineal Through The Collection Of The Metropolitan Museum, Elena Phipps, Nobuko Shibayama

Textile Society of America: Symposium Proceedings

Cochineal, with its origin in the Americas, by the 16th century was exported throughout the world. From the time of the Spanish encounter with the Americas in the late 15th and early 16th century, a dyestuff for a strong, fast, red color was in high demand. While many archival documents and scholarly writing exist on the use and shipment of cochineal throughout the world, and on its impact on the textile industry, this paper traces the pathway of its use through an examination of artworks in the Metropolitan Museum. Scientific analysis aids the study in the identification of cochineal (and …

Supporting Muslim Students In Secular Public Schools, Candace Schlein, Elaine Chan

Department of Teaching, Learning, and Teacher Education: Faculty Publications

This article discusses the findings of a study examining the challenges and opportunities of supporting Muslim students in secular public schools. Education is explored as a multifaceted interplay between home and family life, community resources, school programs and policies, and classroom lessons to investigate the curricular experiences of Muslim students in North America. In particular, this study focuses on data gathered through interviews, informal conversations, and participant observations to draw a narrative case study of a female, Bangladeshi, Muslim student attending a comprehensive elementary and middle school. The study explores tensions and growth among this Muslim student, her parent, and …

Can We Learn A Language Without Rules?, Aleidine Kramer Moeller, Olha Ketsman

Department of Teaching, Learning, and Teacher Education: Faculty Publications

If an individual were to have fallen into a deep sleep for 100 years, much like Rip van Winkle, and awakened to the world as it is today, the changes in modes of transportation, space travel, and computer technology would evoke a sense of awe. The one constant that may appear unaffected by time is a place called school. Here one could find students sitting in a classroom, at desks, in a row, listening to a teacher who poses questions to be answered by students. Certainly this is not always the case, there are exceptions, but generally it still holds …

Teacher Education For Social Justice: What’S Pupil Learning Got To Do With It?, Marilyn Cochran-Smith, Ann Marie Gleeson, Kara Mitchell

Department of Teaching, Learning, and Teacher Education: Faculty Publications

There are many controversies related to the increasingly widespread theme of “social justice” in teacher education, including debates about whether and/or how promoting pupils’ learning is part of this theme. This article briefly discusses the concept of teacher education for social justice in terms of pupils’ learning and then considers this notion in terms of the current press to hold teacher education accountable for learning. The article then presents the results of the “Teacher Assessment/Pupil Learning” (TAPL) study, an analysis nested inside a larger qualitative study about learning to teach over time in a preparation program with a stated social …

Writing Motivation Of Students With Specific Language Impairments, Kyle Lee Brouwer

College of Education and Human Sciences: Dissertations, Theses, and Student Research

This study was designed to compare the writing motivation of students with specific language impairments with their non-disabled peers. Due to the cognitive and linguistic demands of the writing process, students with language impairments face unique difficulties during the writing process. It was hypothesized that students with specific language impairments will be more likely to report lower levels of perceived writing competence and be less autonomously motivated to write. Students in grades 3-5 in 11 schools (33 with specific language impairments, 242 non-disabled peers) completed self-report measures, designed from a Self-Determination Theory perspective, which measured the degree that students are …

American Poetry And The Daily Newspaper From The Rise Of The Penny Press To The New Journalism, Elizabeth M. Lorang

Department of English: Dissertations, Theses, and Student Research

This dissertation examines the relationship of poetry and the U.S. daily newspaper in the nineteenth century and begins the process of recovering and reevaluating nineteenth-century newspaper poetry. In doing so, it draws on and participates in current discussions about the role of poetry and poets in society, the importance of periodicals in the development and dissemination of American literature in the nineteenth century, and the value of studying non-canonical texts. The appearance and function of poems in daily newspapers changed over the course of the nineteenth century, and these changes were part of larger shifts in the newspaper and its …

The Experience And Expression Of Emotion Within Stepsibling Relationships: Politeness Of Expression And Stepfamily Functioning, Emily Lamb Normand

Department of Communication Studies: Dissertations, Theses, and Student Research

While scholars agree there are emotional challenges associated with the divorce and remarriage process, little is known about how stepsiblings interact and manage the experience and expression of emotion within their stepfamily. The current investigation examined the frequency of experience, intensity, and expression of positive, strong negative, and weak negative emotion within stepsibling relationships over time. Using Politeness Theory as a framework, the study also investigated if an association existed between stepsiblings’ use of politeness strategies during the expression of emotion and stepsiblings’ perception of the quality of their relationship and their perception of the entire stepfamily. Participants were 187 …

Data Compression Concepts And Algorithms And Their Applications To Bioinformatics, Ozkan U. Nalbantoglu, David J. Russell, Khalid Sayood

Department of Electrical and Computer Engineering: Faculty Publications

Data compression at its base is concerned with how information is organized in data. Understanding this organization can lead to efficient ways of representing the information and hence data compression. In this paper we review the ways in which ideas and approaches fundamental to the theory and practice of data compression have been used in the area of bioinformatics. We look at how basic theoretical ideas from data compression, such as the notions of entropy, mutual information, and complexity have been used for analyzing biological sequences in order to discover hidden patterns, infer phylogenetic relationships between organisms and study viral …

An Evaluation Of Three Statistical Methods Used To Model Resource Selection, David M. Baasch, Andrew J. Tyre, Joshua J. Millspaugh, Scott E. Hygnstrom, Kurt C. Vercauteren

United States Department of Agriculture Wildlife Services: Staff Publications

The performance of statistical methods for modeling resource selection by animals is difficult to evaluate with field data because true selection patterns are unknown. Simulated data based on a known probability distribution, though, can be used to evaluate statistical methods. Models should estimate true selection patterns if they are to be useful in analyzing and interpreting field data. We used simulation techniques to evaluate the effectiveness of three statistical methods used in modeling resource selection. We generated 25 use locations per animal and included 10, 20, 40, or 80 animals in samples of use locations. To simulate species of different …

Development Of Soft Computing And Applications In Agricultural And Biological Engineering, Yanbo Huang, Yubin Lan, Steven J. Thomson, Alex Fang, Wesley C. Hoffmann, Ronald E. Lacey

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

Soft computing is a set of “inexact” computing techniques, which are able to model and analyze very complex problems. For these complex problems, more conventional methods have not been able to produce cost-effective, analytical, or complete solutions. Soft computing has been extensively studied and applied in the last three decades for scientific research and engineering computing. In agricultural and biological engineering, researchers and engineers have developed methods of fuzzy logic, artificial neural networks, genetic algorithms, decision trees, and support vector machines to study soil and water regimes related to crop growth, analyze the operation of food processing, and support decision-making …

Refugees As People: The Portrayal Of Refugees In American Human Interest Stories, Sarah Steimel

Department of Communication Studies: Faculty Publications

This study combines discourse analysis and narrative analysis (Yin 2007) to examine top US newspapers’ coverage of refugees in American human interest stories. I find that the refugees are presented (a) as prior victims; (b) as in search of the American Dream; and (c) as unable to achieve the American Dream. As human-interest features, the stories provide a largely positive portrayal of individual refugees and their families. However, the human interest stories also depict refugees as current victims of the American economic crisis; deeply frustrated by their inability to achieve the American Dream. Together these discourses represent a narrative of …

¿Sólo Una Vida Traducida? Dislocación, Diáspora Y Perviviencia Cultural En La Experiencia Mexicana En Estados Unidos, M. Isabel Velázquez

Spanish Language and Literature Papers

Vine a Estados Unidos porque me dijeron que aquí vivía mi padre, un tal Miguel Hidalgo. En eso pienso mientras observo a la mujer que se acerca al mostrador de inmigración cargando una imagen de la Virgen de Guadalupe. Es enero de! año 2006 y deben ser como las cinco o las seis de la mañana, en una de las muchas salas de llegada de! aeropuerto O'Hare de Chicago. Somos -la Virgen, la mujer que la carga y todos los que hacemos cola detrás de ellas-, e! cargamento adormilado de un vuelo que salió de More!ia a las dos de …

Modeling Changes In Biomass Composition During Microwave-Based Alkali Pretreatment Of Switchgrass, Deepak R. Keshwani, Jay J. Cheng

Department of Agricultural and Biological Systems Engineering: Faculty Publications

This study used two different approaches to model changes in biomass composition during microwave-based pretreatment of switchgrass: kinetic modeling using a time-dependent rate coefficient, and a Mamdani-type fuzzy inference system. In both modeling approaches, the dielectric loss tangent of the alkali reagent and pretreatment time were used as predictors for changes in amounts of lignin, cellulose, and xylan during the pretreatment. Training and testing data sets for development and validation of the models were obtained from pretreatment experiments conducted using 1–3% w/v NaOH (sodium hydroxide) and pretreatment times ranging from 5 to 20 minutes. The kinetic modeling approach for lignin …

Lip Movement Exaggerations During Infant Directed Speech, Jordan R. Green, Ignatius S. B. Nip, Erin M. Wilson, Antje Mefferd, Yana Yunusova

Department of Special Education and Communication Disorders: Faculty Publications

Purpose: Although a growing body of literature has indentified the positive effects of visual speech on speech and language learning, oral movements of infant directed speech have rarely been studied. This investigation used 3-dimensional motion capture technology to describe how mothers modify their lip movements when talking to their infants.
Method: Lip movements were recorded from twenty-five mothers as they spoke to their infants and other adults. Lip shapes were analyzed for differences across speaking conditions. The maximum fundamental frequency, duration, acoustic intensity, and first and second formant frequency of each vowel were also measured.
Results: Lip movements were significantly …

Dynamic Creation: Extending The Radical Austrian Approach To Entrepreneurship, Todd H. Chiles, Chris S. Tuggle, Jeffery S. Mcmullen, Leonard Bierman, Daniel W. Greening

Department of Management: Faculty Publications

We develop a new perspective on entrepreneurship as a dynamic, complex, subjective process of creative organizing. Our approach, which we call ‘dynamic creation’, synthesizes core ideas from Austrian ‘radical subjectivism’ with complementary ideas from psychology (empathy), strategy and organization theory (modularity), and complexity theory (self-organization). We articulate conjectures at multiple levels about how such dynamic creative processes as empathizing, modularizing, and self-organizing help organize subjectively imagined novel ideas in entrepreneurs’ minds, heterogeneous resources in their firms, and disequilibrium markets in their environments. In our most provocative claim, we argue that entrepreneurs, by imagining divergent futures and (re)combining heterogeneous resources to …

Aging And The Vulnerability Of Speech To Dual Task Demands, Susan Kemper, Ralynn Schmalzried, Lesa Hoffman, Ruth Herman

Department of Psychology: Faculty Publications

Tracking a digital pursuit rotor task was used to measure dual task costs of language production by young and older adults. Tracking performance by both groups was affected by dual task demands: time on target declined and tracking error increased as dual task demands increased from the baseline condition to a moderately demanding dual task condition to a more demanding dual task condition. When dual task demands were moderate, older adults’ speech rate declined but their fluency, grammatical complexity, and content were unaffected. When the dual task was more demanding, older adults’ speech, like young adults’ speech, became highly fragmented, …

An Examination Of Questionnaire Evaluation By Expert Reviewers, Kristen Olson

Department of Sociology: Faculty Publications

Expert reviews are frequently used as a questionnaire evaluation method but have received little empirical attention. Questions from two surveys are evaluated by six expert reviewers using a standardized evaluation form. Each of the questions has validation data available from records. Large inconsistencies in ratings across the six experts are found. Despite the lack of reliability, the average expert ratings successfully identify questions that had higher item nonresponse rates and higher levels of inaccurate reporting. This article provides empirical evidence that experts are able to discern questions that manifest data quality problems, even if individual experts vary in what they …

History And Dating Of The Publication Of The Philadelphia (1822) And London (1823) Editions Of Edwin James’S Account Of An Expedition From Pittsburgh To The Rocky Mountains, Neal Woodman

United States Geological Survey: Staff Publications

The public record of Major Stephen H. Long’s 1819–1820 exploration of the American north-west, Account of an expedition from Pittsburgh to the Rocky Mountains, compiled by Edwin James, contains valuable contributions regarding the natural landscapes, native peoples and wildlife of a mostly unexplored region of the American west compiled from the notes of some of America’s foremost naturalists, and it includes the first descriptions of 67 new species. The original plan was to publish the Account in Philadelphia and London simultaneously, yet these two editions differ substantially in ways that are relevant to the taxonomic contributions in the work. …

Tree-Ring Dates And Demographic Change In The Southern Colorado Plateau And Rio Grande Regions, Michael S. Berry, Larry Benson

United States Geological Survey: Staff Publications

In this chapter, tree-ring dates from the southern Colorado Plateau, Mogollon Highlands, and Rio Grande areas (fig. 3-1) (hereafter referred to as the study area) are used to estimate regional-scale timber-harvesting and construction activities between AD 600 and 1600 (the Basketmaker III through Pueblo IV periods). Within that time span, we focus our attention particularly on the AD 1045-1300 period, a time when anomalously wet periods alternated with megadroughts (fig. 3.2). Treering- date distributions (histograms) for eight archaeological subregions within the study area have been created using a database of more than twenty-four thousand tree-ring dates from archaeological sites. These …

Modeling Biological Structures Via Abstract Grammars To Solve Common Problems In Computational Biology, David J. Russell

Department of Electrical and Computer Engineering: Dissertations, Theses, and Student Research

Grammars are generally understood to be the set of rules that define the relationships between elements of a language. However, grammars can also be used to elucidate structural relationships within sequences constructed from any finite alphabet. In this work abstract grammars are used to model the primary and secondary structures present in biological data. These grammar models are inferred and applied to efficiently solve various sequence analysis problems in computational biology, including multiple sequence alignment, fragment assembly, database redundancy removal, and structural prediction.

The primary structures, or sequential ordering of symbols, of biological data are first modeled with Lempel-Ziv (LZ) …

Splitting The Academy: The Emotions Of Intersectionality At Work, Helen A. Moore, Katherine Acosta, Gary Perry, Crystal Edwards

Department of Sociology: Faculty Publications

Using labor market theory, we assess how we have constructed the teaching of required courses on diversity, with the potential splitting of the academy into distinctive labor markets. In-depth interviews with instructors of color and nonminorities who teach required diversity-education courses at a predominately white university are qualitatively assessed and describe the differences in the emotional labor attached to this segmented academic market.We identify specific dimensions of diversity teaching that attach to the job conditions of secondary labor markets, including the distortion of work loads and evidence of differential barriers in the emotional labor attached. These labor market conditions may …