Digital Commons Network^™

Realizations Of Infinite Products, Ruelle Operators And Wavelet Filters, Daniel Alpay, Palle Jorgensen, Izchak Lewkowicz

Mathematics, Physics, and Computer Science Faculty Articles and Research

Using the system theory notion of state-space realization of matrix-valued rational functions, we describe the Ruelle operator associated with wavelet filters. The resulting realization of infinite products of rational functions have the following four features: 1) It is defined in an infinite-dimensional complex domain. 2) Starting with a realization of a single rational matrix-function M, we show that a resulting infinite product realization obtained from M takes the form of an (infinitedimensional) Toeplitz operator with the symbol that is a reflection of the initial realization for M. 3) Starting with a subclass of rational matrix functions, including scalar-valued ones corresponding …

Wiener-Chaos Approach To Optimal Prediction, Daniel Alpay, Alon Kipnis

Mathematics, Physics, and Computer Science Faculty Articles and Research

In this work we combine Wiener chaos expansion approach to study the dynamics of a stochastic system with the classical problem of the prediction of a Gaussian process based on part of its sample path. This is done by considering special bases for the Gaussian space G generated by the process, which allows us to obtain an orthogonal basis for the Fock space of G such that each basis element is either measurable or independent with respect to the given samples. This allows us to easily derive the chaos expansion of a random variable conditioned on part of the sample …

Scholarship Against Desire, Shari Motro

Law Faculty Publications

This article uses my own experience navigating the law review placement process to reflect on the dynamics that shape intellectual life at American law schools. My recent work focuses on the legal relationship between unmarried lovers who conceive. At its heart, it is about the law’s role in shaping the precursor to pregnancy—heterosexual sex. When I began researching this topic what I was most curious about was how law and culture might conspire to foster connections that are more loving and less violent, more authentic and less alienated. Pursuing this topic—which would entail exploring big existential questions to which I …

Teaching To The Test: The Incorporation Of Elements Of The Bar Exam Preparation In Legal Education, Emmeline Paulette Reeves

Law Faculty Publications

This essay stops far short of advocating for a three-year bar exam course in place of a traditional law school education. It does not even argue for dedicating the final semester of law school to bar exam preparation. Rather, it suggests that the incorporation of elements of bar preparation into the law school curriculum actually can accomplish the dual objectives of, first, making law school education more efficient, and, second, enhancing the students' educational experience and grasp of the legal principles and skills necessary for passing the bar and, ultimately, becoming better lawyers.

Specifically, this essay urges law schools and …

Working With Cancer: How The Law Can Help Survivors Maintain Employment, Ann C. Hodges

Law Faculty Publications

Advances in cancer treatment are saving lives, but along with the benefits come challenges. Millions of cancer survivors of working age need to support themselves and their families. This Article looks at the impact of cancer on employment starting with the empirical evidence gathered by researchers affiliated with medical centers. This empirical research provides a base, not previously explored in the legal literature, for assessing the existing laws dealing with cancer and employment (or unemployment). Viewing the law through this lens, which reveals the complex relationship between cancer and employment, exposes both the promise and the weakness of existing laws …

Cross-Fertilisation Of Procedural Law Among International Courts And Tribunals: Methods And Meanings, Chiara Giorgetti

Law Faculty Publications

The proliferation of international courts and tribunals has resulted in interesting instances of cross-fertilisation of procedural law among international courts. This chapter provides a framework to assess specific techniques of cross-fertilisation, used in support of specific conclusions reached by the deciding tribunal Techniques used include general references to decisions by other tribunals, specific citations to one or more decisions by other international courts and tribunals and references to a standard adopted by other international courts and tribunals explained in a dissenting or separate opinion and differing from the conclusion supported by the majority of the deciding tribunal. Continuous instances of …

Global Exposure And Global Perceptions: A Cross-Cultural Comparison Of Students In China, Japan, Mexico, Saudi Arabia, South Korea, And The Usa, Deirdre D. Johnston, Rika Hanamitsu

Faculty Publications

This study compares the global perceptions and exposure of students who have come to age in the era of global communication, across ideologically and economically different nations: China, Japan, Mexico, Saudi Arabia, South Korea, and the USA. To examine the type and level of their global exposure and the impact of type and level of global exposure on perceptions of global communication, 21 global exposure items and 31 global communication impact items were used to comprise scales for a survey, which was administered to 1360 college students in six countries. The results show significant differences by country in all five …

The Three-Act Argument: How To Write A Law Article That Reads Like A Good Story, Shari Motro

Law Faculty Publications

Why do so many law articles—my own included—leave readers cold? One reason may be that they lack fundamental elements that make up a good story. They lack tension. They lack narrative arc. Over my years teaching seminars and exchanging drafts with colleagues, I’ve developed a recipe that helps me organize ideas into a form that better engages the reader. I’ve also found it to be conducive to a richer, more generative writing process.

The recipe is inspired by guides on dramatic plot. It has three parts: exposition, confrontation, and resolution. The exposition introduces the conflict. In many instances, this conflict …

War, Responsibility, And Killer Robots, Rebecca Crootof

Law Faculty Publications

In War and Responsibility, John Hart Ely argues that Congress has willingly and cravenly surrendered its rightful role as the branch responsible for determining when and the extent to which the United States engages in armed conflicts. Since the publication of this seminal work on the war power, presidents have continued to commit troops to hostilities absent or outside of explicit congressional authorizations-and the legislature and the judiciary rarely challenge such actions.

Meanwhile, the United States is investing heavily in unmanned military weapon systems, and the U.S. Department of Defense has described increasing weapons' autonomous capabilities as a "high priority." …

Adoption Factors Impacting Human Resource Analytics Among Human Resource Professionals, Roslyn Vargas

HCBE Theses and Dissertations

In today’s fast paced, ever-changing world, one cannot help hearing the terms Big Data and analytics. The Internet holds vast amounts of data and this data, for example in retail, is being used to predict shopping habits, current needs, trends, and more. Why should this be limited to the retail side of an organization? Today, there is a more significant push for Human Resource (HR) professionals to be strategic business partners, and, therefore, HR professionals need to work on leading, not lagging, in the area of measurements and analytics. Some organizations that have adopted the use of analytics in their …

Identifying Factors Which Enhance Capacity To Engage In Clinical Education Among Podiatry Practitioners: An Action Research Project, S Abey, S Lea, L Callaghan, D Cotton, S Shaw

School of Health Professions

No abstract provided.

Working-Life Enhancement Of The Underfill Adhesive, Cholthicha Varokorn

Chulalongkorn University Theses and Dissertations (Chula ETD)

In flip-chip assembly process, the underfill is often dispensed into a package via a needle. Therefore, the viscosity of underfill adhesive has to be strongly controlled. The aim of this research is to study the methods for prolonging the working-life of an epoxy-based underfill. The underfill formulation process was modified and the effects of components in the underfill that cause the increase in viscosity of underfill at room temperature were studied. A rheometer was used to determine the viscosity-time relationship of underfill formulations. The results showed that the working-life of adhesive was extended from 2 hours to 6 hours with …

Thermal Conductivity Enhancement Of Epoxy-Based Adhesive Via Incorporating Inorganic Fillers, Chutiphong Sae-Sue

Chulalongkorn University Theses and Dissertations (Chula ETD)

Owing to a poor thermal conductivity of epoxy resin, the requirement of high heat dissipation in electronic packaging is not overcome. In this research, aluminium oxide (Al2O3) and silicon nitride (Si3N4) filled epoxy-based underfill adhesive were prepared by varying filler loading in the range of 0-5% by volume. Additionally, the epoxy composites were also incorporated with silane-treated particles. For the silane surface treatment of filler particles, N-(2-aminoethyl)-3-(trimethoxysilyl) propylamine (AETMP) was used as coupling agent to achieve good dispersion of particles in the polymer matrix. The results showed that when filler loading was increased, thermal conductivity of composites tended to be …

Management And Production Practices Of The Missouri Beef Cattle Industry, Jordan Lee Kinder

Graduate Theses/Dissertations

A survey of beef cattle producers in Missouri was conducted to evaluate the management and production practices of the beef cattle industry. Production and demographic data from 112 (response rate of 5.9%) were analyzed to identify areas in need of future research and education. The web-based survey was conducted through Survey Monkey© and distributed by the Missouri Cattlemen's Association to a list of their members. Responding producers were located in 65 of the 114 counties in Missouri, with 63.3% located north of Interstate 44 and 36.7% south of Interstate 44. The majority (47.3%) of producers were between ages 31 and …

Bodies Bending Boundaries: Religious, Spiritual, And Secular Identities Of Modern Postural Yoga In The Ozarks, Kimberley J. Pingatore

Graduate Theses/Dissertations

Modern postural yoga is an amalgamation of practices that continues to defy traditional explanatory models that understand religious, spiritual, and secular to be mutually exclusive categories. In this project, I conduct in-depth interviews with yoga instructors in the Ozarks. In these interviews, I asked my informants to explain how they understand religious, spiritual, and secular. I then asked if and how they would use those words to describe yoga. These interviews revealed that religious, spiritual, and secular are not mutually exclusive, but are instead related, blended, and connected, especially when used to describe yoga. These findings inform my proposed explanatory …

Immunohistochemical Assessment Of Cytokeratin 17 And Epcam Expression In Different Grades Of Oral Squamous Cell Carcinoma, Safaa El-Baz, Iman Helmy, Mohamed Hosam El Mallahy

Dentistry

Oral squamous cell carcinoma (OSCC), one of the most common malignancies in the head and neck region, is graded based on Broder’s classification into well-differentiated, moderately, and poorly differentiated. Cytokeratin 17 (K17, CK17) is an acid-type I cytokeratin with a low-molecular weight of 48.1 kDa. Epithelial cell adhesion molecule (EpCAM) is a hemophilic Ca2+ independent adhesion molecule. This study used an immunohistochemical technique (IHC) to examine the expression of CK17 and EpCAM in thirty-two specimens of OSCC (comprising 13 well-, 9 moderately, and 10 poorly differentiated cases), and 2 specimens of normal oral mucosa, used as control. It was found …

To Fidget Or Not To Fidget: The Effect Of Movement On Cognition, Kelsey Diane Grodner

Theses and Dissertations

Previous research suggests that there is controversy regarding the effects of fidgeting. On one hand, fidgeting has been associated with inattention. On the other hand, the act of suppressing movement may have extensive costs to cognitive abilities. Thus, allowing fidgeting might be beneficial for attention. However certain fidgeting behaviors, such as large body movements, might be disruptive in certain situations, like a classroom or an office meeting. Fidget toys have been developed that allow for smaller fidgeting movements that are non-disruptive. Most previous studies have been conducted in an elementary school classroom and have used primarily observational data. Here we …

Role Of Student Entitlement And Co-Production On Satisfaction, Deborah Jean Sisson

HCBE Theses and Dissertations

The marketing of services has challenges uncommon to that of marketing products. By nature service offerings are intangible, heterogeneous, perishable, and simultaneously consumed and produced. This simultaneous consumption and production often requires the consumer to participate in the service delivery – co-production. Colleges and universities offer a service which requires high levels of co-production by students and is the setting for this research. As colleges/universities face greater challenges at this time, there is a need for better understanding of the role the student plays in the production process. The service marketing literature offers an understanding of the importance of the …

Conductive Patterns By Spray Pyrolysis Of A Self-Reducing Copper-Amine Complex Ink, Phenfar Benjapongvimon

Chulalongkorn University Theses and Dissertations (Chula ETD)

A conductive pattern prepared by spray pyrolysis of copper-amine complex ink on glass and polyimide (PI) substrates in nitrogen atmosphere. The complex ink was prepared by mixing copper (II) formate, diethanolamine, 25% ammnonia solution and distilled water. The effects of concentration of copper ion, spray pyrolysis temperature, annealing time, type of substrate, rate of deposition and benzimidazole coating were investigated. Concentration of copper ion affected size of copper particles generated. The patterns fabricated at 200 OC had higher packing density than those fabricated at lower temperature. The rate of deposition determined the thickness of well-sintered layer. Therefore, volume resistivity of …

การวัดประสิทธิภาพเชิงเปรียบเทียบของคณะวิศวกรรมศาสตร์ จุฬาลงกรณ์มหาวิทยาลัย, วนัชพร สืบปรุ

Chulalongkorn University Theses and Dissertations (Chula ETD)

งานวิจัยชิ้นนี้มีวัตถุประสงค์เพื่อวัดประสิทธิภาพการทำงานของคณะวิศวกรรมศาสตร์ จุฬาลงกรณ์มหาวิทยาลัย โดยการประยุกต์ใช้ข้อมูลตัวชีวัดผลการดำเนินงาน (KPI) ปี 2558 ร่วมกับวิธีการล้อมกรอบข้อมูล (Data Envelopment Analysis : DEA) โดย DEA นั้นเป็นการวัดค่าประสิทธิภาพเชิงเปรียบเทียบซึ่งเป็นการวัดอัตราส่วนของปัจจัยนำเข้าและปัจจัยผลผลิต DEA เหมาะสำหรับองค์กรที่ไม่แสวงหาผลกำไร ทำให้ DEA ได้รับความนิยมเป็นอย่างยิ่ง ผลลัพธ์ที่ได้จาก DEA เรียกว่า ค่าประสิทธิภาพ โดยมีค่าตั้งแต่ 0 ถึง 1 ถ้าค่าประสิทธิภาพเชิงเเปรียบเทียบ ยิ่งมีค่ามาก ยิ่งแสดงถึงความมีประสิทธิภาพของหน่วยงานนั้น สำหรับงานวิจัยในครั้งนี้ ขอบเขตงานวิจัยคือ สำนักงานหลักสูตรวิศวกรรมนานาชาติและภาควิชาทั้ง 12 ภาควิชา งานวิจัยชิ้นนี้ได้แบ่งการวัดประสิทธิภาพออกเป็น 3 แบบ คือ การวัดประสิทธิภาพด้านการเรียน การวัดประสิทธิภาพด้านการสอน และการวัดประสิทธิภาพโดยรวม เมื่อทำการวัดประสิทธิภาพแล้ว จะทำให้ทราบว่าแต่ละหน่วยงาน มีประสิทธิภาพการทำงานเป็นอย่างไร นอกจากนี้ ยังสามารถบอกได้ถึงค่าปัจจัยต่างๆที่ควรลดหรือเพิ่มเพื่อให้การดำเนินงานเป็นไปอย่างมีประสิทธิภาพมากขึ้น เมื่อได้วิเคราะห์ข้อมูลด้วยเทคนิคการล้อมกรอบข้อมูลพบว่า เมื่อวัดประสิทธิภาพด้านการสอน พบว่า 7 ภาควิชา (คิดเป็น 53.85%) มีประสิทธิภาพด้านการสอน สำหรับด้านการวิจัย 12 ภาควิชา (คิดเป็น 92.31%) มีประสิทธิภาพในด้านการวิจัย และเมื่อวัดประสิทธิภาพโดยรวม ภาควิชาที่มีประสิทธิภาพ มีทั้งสิ้น 12 ภาควิชา (คิดเป็น 92.31%)

The Extra-Regional Dynamic Of Maritime Security In The South China Sea: A Case Study Of Vietnam And The Philippines From 1974 To The Present, William Fountain Kennedy

Chulalongkorn University Theses and Dissertations (Chula ETD)

The Philippines and Vietnam valued their maritime connections with great powers during the Cold War and have continued to do so after if ended. In the bipolar context of the Cold War, both Manila and Hanoi eventually permitted Washington and Moscow to station naval forces on their coasts. As tension between Washington and Moscow diminished significantly in the early 1990s, maritime security interests of the Philippines and Vietnam changed. The withdrawal of US and Russian naval forces from the South China Sea left China without rivals. Beijing then emerged as an un-checked naval power in the South China Sea. US-China …

Prospects For Detection Of Extragalactic Stellar Black Hole Binaries In The Nearby Universe, Matthew Benacquista, Jesus Hinojosa, Alberto Mata, Krzysztof Belczynski

Physics & Astronomy Faculty Publications

Stellar mass black hole binaries have individual masses between 10-80 solar masses. These systems may emit gravitational waves at frequencies detectable at Megaparsec distances by space-based gravitational wave observatories. In a previous study, we determined the selection effects of observing these systems with detectors similar to the Laser Interferometer Space Antenna by using a generated population of binary black holes that covered a reasonable parameter space and calculating their signal-to-noise ratio. We further our study by populating the galaxies in our nearby (less than 30 Mpc) universe with binary black hole systems drawn from a distribution found in the Synthetic …

Understanding The Gravitational-Wave Hellings And Downs Curve For Pulsar Timing Arrays In Terms Of Sound And Electromagnetic Waves, Fredrick A. Jenet, Joseph D. Romano

Physics & Astronomy Faculty Publications

Searches for stochastic gravitational-wave backgrounds using pulsar timing arrays look for correlations in the timing residuals induced by the background across the pulsars in the array. The correlation signature of an isotropic, unpolarized gravitational-wave background predicted by general relativity follows the so-called Hellings and Downs curve, which is a relatively simple function of the angle between a pair of Earth-pulsar baselines. In this paper, we give a pedagogical discussion of the Hellings and Downs curve for pulsar timing arrays, considering simpler analogous scenarios involving sound and electromagnetic waves. We calculate Hellings-and-Downs-type functions for these two scenarios and develop a framework …

Detection Of Temporal Changes In Vegetative Cover On South Padre Island, Texas Using Image Classifications Derived From Aerial Color-Infrared Photographs, Ruben A. Mazariegos, Kenneth R. Summy, Frank W. Judd, Robert I. Lonard, James H. Everitt

Physics & Astronomy Faculty Publications

Supervised image classifications developed from 23 x 23 cm aerial color-infrared aerial photographs (1:5,000 scale) were used to evaluate temporal changes in vegetative cover occurring within three 150 x 300-m research sites on South Padre Island, Texas. Use of high-resolution digitized imagery (ground pixel resolution of ca. 0.1 m) and survey-grade GPS for positional measurements of ground control points (20-25 1.0m2 targets within each research site) resulted in consistently high levels of geometric accuracy, with root mean square errors (RMSEs) ranging between 0.397 – 2.867. Similarly, use of relatively simple information categories (dry and wet sand, live and dead vegetative …

One-Dimensional Triple Periodic Dual-Beam Microstrip Leaky-Wave Antenna, Zi Long Ma, Li (Lijun) Jun Jiang

Electrical and Computer Engineering Faculty Research & Creative Works

In this letter, a novel dual-beam microstrip leaky-wave antenna based on one-dimensional triple periodic (TP) structure is proposed. Through theoretical dispersion relation analysis, it is found that compared to the conventional periodic structure, TP structure has reduced the separation of space harmonics. Hence, more space harmonic modes are brought into the leaky-wave radiation region. Through proper design, m = - 1 and m = - 2 modes are excited simultaneously. Consequently, the forward and backward propagation waves of these two modes generate two radiation beams in the far-field region. At different frequencies, symmetrical and asymmetrical beam pairs are realized. It …

Customizing Course Redesign And Flipped Classroom Models To Improve Learning Environment, Taeil Yi, Jerzy Mogilski

School of Mathematical & Statistical Sciences Faculty Publications

This article is about a successful adoption of course redesign model of mathematics courses at the Department of Mathematics in the University of Texas at Brownsville (UTB), a Hispanic serve university in the south Texas. Around 2007 National Center for Academic Transformation (NCAT) recommended six models for using of information technology to redesign courses in mathematics: the supplemental model, the replacement model, the emporium model, the fully online model, the buffet model, and the linked workshop model. Because of the local educational environment and resources none of the six models could be implemented exactly like it was described by NCAT. …

The Mass Profile And Shape Of Bars In The Spitzer Survey Of Stellar Structure In Galaxies (S4g) : Search For An Age Indicator For Bars., Taehyun Kim, Kartik Sheth, Dimitri A. Gadotti, Myung Gyoon Lee, Dennis Zaritsky, Bruce G. Elmegreen, E. Athanassoula, Albert Bosma, Benne W. Holwerda, Luis C. Ho, Sebastien Comeron, Johan H. Knapen, Joannah Hinz, Juan Carlos Munoz-Mateos, Santiago Erroz-Ferrer, Ronald J. Buta, Minjin Kim, Eija Laurikainen, Heikki Salo, Barry F. Madore, Jarkko Laine, Karin Menendez-Delmestre, Michael Regan, Bonita De Swardt, Armando Gil De Paz, Mark Seibert, Trisha Mizusawa

Faculty and Staff Scholarship

We have measured the radial light profiles and global shapes of bars using two-dimensional 3.6μm image decompositions for 144 face-on barred galaxies from the Spitzer Survey of Stellar Structure in Galaxies. The bar surface brightness profile is correlated with the stellar mass and bulge-to-total (B/T) ratio of their host galaxies. Bars in massive and bulge-dominated galaxies (B/T > 0.2) show a flat profile, while bars in less massive, disk-dominated galaxies (B/T ∼ 0) show an exponential, disk-like profile with a wider spread in the radial profile than in the bulge-dominated galaxies. The global two-dimensional shapes of bars, however, are rectangular/boxy, independent …

Do Depressive Symptoms Predict The Incidence Of Myocardial Infarction Independent Of Hopelessness?, Patrick Pössel, Amanda M. Mitchell, Kimmo Ronkainen, George A. Kaplan, Jussi Kauhanen, Maarit Valtonen

Faculty and Staff Scholarship

Depression and hopelessness predict myocardial infarction (MI), but it is unclear whether depression and hopelessness are independent predictors of MI incidents. Hopelessness, depression, and MI incidence rate 18 years later were measured in 2005 men. Cox regressions were conducted with hopelessness and depression serving as individual predictors of MI. Another Cox model examined whether the two predictors predict MI when adjusting for each other. Depression and hopelessness predicted MI in independent regressions but when adjusting for each other, hopelessness, but not depression, predicted MI incidents. Thus, these results suggest that depression and hopelessness are not independent predictors of MI.

Integrating Beck’S Cognitive Model And The Response Style Theory In An Adolescent Sample., Stephanie Winkeljohn Black, Patrick Pössel

Faculty and Staff Scholarship

Depression becomes more prevalent as individuals progress from childhood to adulthood. Thus, empirically supported and popular cognitive vulnerability theories to explain depression in adulthood have begun to be tested in younger age groups, particularly adolescence, a time of significant cognitive development. Beck’s cognitive theory and the response style theory are well known, empirically supported theories of depression. The current, two-wave longitudinal study (N = 462; mean age = 16.01 years; SD = 0.69; 63.9 % female) tested various proposed integrative models of Beck’s cognitive theory and the response style theory, as well as the original theories themselves, to determine if …

Developing A Chronic Pain Vocabulary: Communication Preferences Among Individuals With Chronic Pain, Karin L. Becker

Theses and Dissertations

In order to be acknowledged, chronic pain must be voiced yet disclosing of chronic pain is fraught with social and professional repercussions. Moreover, there is a perceived disinterest in hearing about, and a stigma associated with the experience of chronic pain. This research explores the therapeutic value of communicating about pain. Nineteen individuals with chronic pain participated in a six-week online writing workshop to describe the way chronic pain impacts daily activities. These qualitative responses were analyzed using discourse analysis and four interpretive repertoires emerged which convey the multi-faceted impacts of living with chronic pain. These findings informed the creation …