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2011

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Is Computer Science A Relevant Academic Discipline For The 21st Century, Doug Baldwin Dec 2011

Is Computer Science A Relevant Academic Discipline For The 21st Century, Doug Baldwin

Mathematics

The current view of computing as technology overlooks the discipline’s theoretical and scientific foundations in computer science, weakening the entire computing enterprise.


Determining A Relationship Between Design Characteristics And The End-Of-Life Disposition Of Cellular Phones, Ashley Devierno Dec 2011

Determining A Relationship Between Design Characteristics And The End-Of-Life Disposition Of Cellular Phones, Ashley Devierno

Theses

In recent years, the consumption of consumer electronics has increased rapidly in the United States and across the world. As the consumer electronics industry continues to innovate and turn over new products, older products become obsolete and enter the ever growing electronics waste stream, which was 2.3 million tons in 2007.The increasing volume of electronic waste (e-Waste) has gained the attention of consumers, media outlets, and policy makers across the world. This has put pressure on original equipment manufacturers (OEMs) of consumer electronics to manage their products in an environmentally responsible way at the end of their product lifetimes. It …


Are Progressive Ratio And Fixed Interval Schedules Of Reinforcement Related Measures Of Impulsivity?, Christine Guiterrez Dec 2011

Are Progressive Ratio And Fixed Interval Schedules Of Reinforcement Related Measures Of Impulsivity?, Christine Guiterrez

Theses and Dissertations - UTB/UTPA

The area of impulsivity is widely studied among many different professional fields. However, given the broad brush that has been used to paint the construct of impulsivity, it’s apparent that there is no true agreement on a definitive definition. In the present study, a purely behavioral procedure was tested with 10 female Sprague-Dawley rats who were placed on a progressive ratio and then a fixed interval 20 s schedule of reinforcement to see if these two schedules were related measures of impulsivity. The definition of impulsivity used in this study was relative to the performance of all animals in that …


The Effects Of Physical Activity On Self-Injurious Behavior, Lynnette D. Aguilar Dec 2011

The Effects Of Physical Activity On Self-Injurious Behavior, Lynnette D. Aguilar

Theses and Dissertations - UTB/UTPA

Auto-mutilation is a maladaptive coping mechanism and a major problem confronting behavioral medicine with no known treatment to date to place the behavior on complete extinction. The purpose of this experiment is to examine the possible beneficial effects of running relative to caffeine-induced SIB. Female Sprague Dawley rats (n = 4) served as subjects with each having a different extended baseline and treatment condition. Visual analysis of a multiple baseline graph did not support the hypothesis that as treatment (physical activity) was implemented SIB would decrease. It was found that subjects who drank more caffeinated water had higher amounts of …


First Mover: Otto Struve And The Use Of Scientific Capital In Astrophysics, 1921–1950, Erik Paul Norquest Dec 2011

First Mover: Otto Struve And The Use Of Scientific Capital In Astrophysics, 1921–1950, Erik Paul Norquest

Theses and Dissertations - UTB/UTPA

Otto Struve (1897-1963) came to the United States in 1921 and became one of the dominant personalities in the field of astrophysics. Struve’s career made him, in the words of sociologist Pierre Bourdieu, a “first mover” in a scientific field that was firmly engaged in the process of what Thomas Kuhn called “normal science.” Struve pulled astrophysics further away from its empirical roots in categorization and made it more like physics in its unification of theory and observation. The primary way that he accomplished this was through his administration of Yerkes and McDonald observatories, where he brought in theorists to …


Enriched Vs Impoverished Housing: Food Choice And Consumption, Berenice Martinez Dec 2011

Enriched Vs Impoverished Housing: Food Choice And Consumption, Berenice Martinez

Theses and Dissertations - UTB/UTPA

This study focused on the relationship between environmental setting, eating choices and food intake. Ten Swiss Webster female subjects were socially housed under impoverished environmental conditions and ten under enriched housing conditions. Subjects were exposed to a nutritious food and sweet fat-laden food diet together with ad lib access to regular tap water on a 12 h light and dark cycle for four weeks. Results showed that an impoverished environment does not lead to an increase in body weight (t(6)= 0.293, p > .05) and environmental manipulations do not delineate a preference for diet type (t(6)= .877, p >.05). Further research …


The Use Of Debit Cards In Promoting On-Time Payment Behavior In A Daycare Center In The Rio Grande Valley Region Of Texas, Ruben James Nieto Dec 2011

The Use Of Debit Cards In Promoting On-Time Payment Behavior In A Daycare Center In The Rio Grande Valley Region Of Texas, Ruben James Nieto

Theses and Dissertations - UTB/UTPA

The study investigates the inappropriate payment behavior of consumers at a local daycare in the Rio Grande Valley. An AB, baseline and intervention, single subject design was used to increase the on-time payment behavior of consumers paying on time at the daycare. Baseline data was taken for 14 weeks before the intervention was implemented. The intervention consisted of an alternative payment method, accepting credit and debit cards, [as an antecedent, to the consumer in order to receive payments on time]. This alternative payment method showed that on-time payment behavior increased compared to pre-intervention.


Parenting Strategies As Predictors Of Cognitive Development Among Children, Nydia E. Martinez Dec 2011

Parenting Strategies As Predictors Of Cognitive Development Among Children, Nydia E. Martinez

Theses and Dissertations - UTB/UTPA

The present study investigated relationships among parenting strategies, socioeconomic status, and theory of mind development in 88 (43 girls and 45 boys) predominantly Hispanic 3 – to 7-year-old children. Vocabulary and ToM reasoning (via one true and one false belief task) levels were assessed. Parents completed demographic surveys and a disciplinary questionnaire, which presented the parents with hypothetical corrective behavioral situations. Contrary to expectations there were no significant relations between ToM, parenting strategies, and socioeconomic status in the overall sample. However, examining children tested in English and children tested in Spanish separately yielded some significant results. In the Spanish-speaking sample, …


Exposure To Cloudburst In Leh: Post Traumautic Stress Disorder And Associated Factors, Ruby Charak, Lundup Spalzes Dec 2011

Exposure To Cloudburst In Leh: Post Traumautic Stress Disorder And Associated Factors, Ruby Charak, Lundup Spalzes

Psychological Science Faculty Publications

Disasters of any nature whether man made or due to nature's fury are well known to cause a variety of psychological sequelae. One such natural disaster took place in August 2010 in Leh, when cloudburst triggering torrential rains, flash floods and mud slides struck Leh town of Ladakh causing massive destruction to flora and fauna. The present study aims to gauge the effect of number of trauma events previously faced by an individual, positive affect, negative affect and social support on Post Trauma Stress Disorder (PTSD) among 98 (48 female & 50 male) residents of Leh who were exposed to …


Determination Of Sin2Θeff W Using Jet Charge Measurements In Hadronic Z Decays, D. Buskulic, M. Thulasidas Dec 2011

Determination Of Sin2Θeff W Using Jet Charge Measurements In Hadronic Z Decays, D. Buskulic, M. Thulasidas

Research Collection School Of Computing and Information Systems

The electroweak mixing angle is determined with high precision from measurements of the mean dierence between forward and backward hemisphere charges in hadronic decays of the Z. A data sample of 2:5 million hadronic Z decays recorded over the period 1990 to 1994 in the ALEPH detector at LEP is used. The mean charge separation between event hemispheres containing the original quark and antiquark is measured for b b and cc events in subsamples selected by their long lifetimes or using fast D 's. The corresponding average charge separation for light quarks is measured in an inclusive sample from the …


Four-Jet Final State Production In E+E- Collisions At Centre-Of-Mass Energies Of 130 And 136 Gev, D. Buskulic, M. Thulasidas Dec 2011

Four-Jet Final State Production In E+E- Collisions At Centre-Of-Mass Energies Of 130 And 136 Gev, D. Buskulic, M. Thulasidas

Research Collection School Of Computing and Information Systems

The four-jet final state is analyzed to search for hadronic decays of pair-produced heavy particles. The analysis uses the ALEPH data collected at LEP in November 1995 at centre-of-mass energies of 130 and 136 GeV, corresponding to a total integrated luminosity of 5.7 pb1 . An excess of four-jet events is observed with respect to the standard model predictions. In addition, these events exhibit an enhancement in the sum of the two di-jet masses around 105 GeV/c 2 . The properties of these events are studied and compared to the expectations from standard processes and to pair production hypotheses


Tracking Web Video Topics: Discovery, Visualization, And Monitoring, Juan Cao, Chong-Wah Ngo, Yong-Dong Zhang, Jin-Tao Li Dec 2011

Tracking Web Video Topics: Discovery, Visualization, And Monitoring, Juan Cao, Chong-Wah Ngo, Yong-Dong Zhang, Jin-Tao Li

Research Collection School Of Computing and Information Systems

Despite the massive growth of web-shared videos in Internet, efficient organization and monitoring of videos remains a practical challenge. While nowadays broadcasting channels are keen to monitor online events, identifying topics of interest from huge volume of user uploaded videos and giving recommendation to emerging topics are by no means easy. Specifically, such process involves discovering of new topic, visualization of the topic content, and incremental monitoring of topic evolution. This paper studies the problem from three aspects. First, given a large set of videos collected over months, an efficient algorithm based on salient trajectory extraction on a topic evolution …


Towards Textually Describing Complex Video Contents With Audio-Visual Concept Classifiers, Chun Chet Tan, Yu-Gang Jiang, Chong-Wah Ngo Dec 2011

Towards Textually Describing Complex Video Contents With Audio-Visual Concept Classifiers, Chun Chet Tan, Yu-Gang Jiang, Chong-Wah Ngo

Research Collection School Of Computing and Information Systems

Automatically generating compact textual descriptions of complex video contents has wide applications. With the recent advancements in automatic audio-visual content recognition, in this paper we explore the technical feasibility of the challenging issue of precisely recounting video contents. Based on cutting-edge automatic recognition techniques, we start from classifying a variety of visual and audio concepts in video contents. According to the classification results, we apply simple rule-based methods to generate textual descriptions of video contents. Results are evaluated by conducting carefully designed user studies. We find that the state-of-the-art visual and audio concept classification, although far from perfect, is able …


Wsm 2011: Third Acm Workshop On Social Media, Steven C. H. Hoi, Michal Jacovi, Ioannis Kompatsiaris, Jiebo Luo, Konstantinos Tserpes Dec 2011

Wsm 2011: Third Acm Workshop On Social Media, Steven C. H. Hoi, Michal Jacovi, Ioannis Kompatsiaris, Jiebo Luo, Konstantinos Tserpes

Research Collection School Of Computing and Information Systems

The Third Workshop on Social Media (WSM2011) continues the series of Workshops on Social Media in 2009 and 2010 and has been established as a platform for the presentation and discussion of the latest, key research issues in social media analysis, exploration, search, mining, and emerging new social media applications. It is held in conjunction with the ACM International Multimedia Conference (MM'11) at Scottsdale, Arizona, USA, 2011 and has attracted contributions on various aspects of social media including data mining from social media, content organization, geo-localization, personalization, recommendation systems, user experience, machine learning and social media approaches and architectures for …


Automated Removal Of Cross Site Scripting Vulnerabilities In Web Applications, Lwin Khin Shar, Hee Beng Kuan Tan Dec 2011

Automated Removal Of Cross Site Scripting Vulnerabilities In Web Applications, Lwin Khin Shar, Hee Beng Kuan Tan

Research Collection School Of Computing and Information Systems

Context: Cross site scripting (XSS) vulnerability is among the top web application vulnerabilities according to recent surveys. This vulnerability occurs when a web application uses inputs received from users in web pages without properly checking them. This allows an attacker to inject malicious scripts in web pages via such inputs such that the scripts perform malicious actions when a client visits the exploited web pages. Such an attack may cause serious security violations such as account hijacking and cookie theft. Current approaches to mitigate this problem mainly focus on effective detection of XSS vulnerabilities in the programs or prevention of …


Discussion Of "Biomedical Ontologies: Toward Scientific Debate", Brochhausen M., Burgun A., Ceusters W., Hasman A., Tze-Yun Leong, Musen M., Oliveira J., Peleg M., Rector A., Schulz S. Dec 2011

Discussion Of "Biomedical Ontologies: Toward Scientific Debate", Brochhausen M., Burgun A., Ceusters W., Hasman A., Tze-Yun Leong, Musen M., Oliveira J., Peleg M., Rector A., Schulz S.

Research Collection School Of Computing and Information Systems

With these comments on the paper “Biomedical Ontologies: Toward scientific debate”, written by Victor Maojo et al., Methods of Information in Medicine wants to stimulate a discussion on advantages and challenges of biomedical ontologies. An international group of experts have been invited by the editor of Methods to comment on this paper. Each of the invited commentaries forms one section of this paper.


Tag-Based Social Image Search With Visual-Text Joint Hypergraph Learning, Yue Gao, Meng Wang, Huanboo Luan, Jialie Shen, Shuicheng Yan, Dacheng Tao Dec 2011

Tag-Based Social Image Search With Visual-Text Joint Hypergraph Learning, Yue Gao, Meng Wang, Huanboo Luan, Jialie Shen, Shuicheng Yan, Dacheng Tao

Research Collection School Of Computing and Information Systems

Tag-based social image search has attracted great interest and how to order the search results based on relevance level is a research problem. Visual content of images and tags have both been investigated. However, existing methods usually employ tags and visual content separately or sequentially to learn the image relevance. This paper proposes a tag-based image search with visual-text joint hypergraph learning. We simultaneously investigate the bag-of-words and bag-of-visual-words representations of images and accomplish the relevance estimation with a hypergraph learning approach. Each textual or visual word generates a hyperedge in the constructed hypergraph. We conduct experiments with a real-world …


On Two Rfid Privacy Notions And Their Relations, Yingjiu Li, Robert H. Deng, Junzuo Lai, Changshe Ma Dec 2011

On Two Rfid Privacy Notions And Their Relations, Yingjiu Li, Robert H. Deng, Junzuo Lai, Changshe Ma

Research Collection School Of Computing and Information Systems

Privacy of RFID systems is receiving increasing attention in the RFID community. Basically, there are two kinds of RFID privacy notions in the literature: one based on the indistinguishability of two tags, denoted as ind-privacy, and the other based on the unpredictability of the output of an RFID protocol, denoted as unp*-privacy. In this article, we first revisit the existing unpredictability-based RFID privacy models and point out their limitations. We then propose a new RFID privacy model, denoted as unp*-privacy, based on the indistinguishability of a real tag and a virtual tag. We formally clarify its relationship with the ind-privacy …


Content Contribution Under Revenue Sharing And Reputation Concern In Social Media: The Case Of Youtube, Qian Tang, Bin Gu, Andrew B. Whinston Dec 2011

Content Contribution Under Revenue Sharing And Reputation Concern In Social Media: The Case Of Youtube, Qian Tang, Bin Gu, Andrew B. Whinston

Research Collection School Of Computing and Information Systems

A key feature of social media is that it allows individuals and businesses to contribute contents for public viewing. However, little is known about how content providers derive payoffs from such activities. In this study, we build a dynamic structural model to recover the utility function for content providers. Our model distinguishes short-term payoffs based on ad revenue sharing from long-term payoffs driven by content providers’ reputation. The model was estimated using a panel data of 914 top 1000 providers and 381 randomly selected providers on YouTube from Jun 7th, 2010, to Aug 7th, 2011. The two different sets of …


Retrieval-Based Face Annotation By Weak Label Regularized Local Coordinate Coding, Dayong Wang, Steven C. H. Hoi, Ying He, Jianke Zhu Dec 2011

Retrieval-Based Face Annotation By Weak Label Regularized Local Coordinate Coding, Dayong Wang, Steven C. H. Hoi, Ying He, Jianke Zhu

Research Collection School Of Computing and Information Systems

Retrieval-based face annotation is a promising paradigm in mining massive web facial images for automated face annotation. Such an annotation paradigm usually encounters two key challenges. The first challenge is how to efficiently retrieve a short list of most similar facial images from facial image databases, and the second challenge is how to effectively perform annotation by exploiting these similar facial images and their weak labels which are often noisy and incomplete. In this paper, we mainly focus on tackling the second challenge of the retrieval-based face annotation paradigm. In particular, we propose an effective Weak Label Regularized Local Coordinate …


Avian Hazard Advisory System (Ahas): An Evaluation Of Ahas Accuracy As A Predictive Tool In Bird Strike Risk Assessment For Civil Aviation, Inger Catherine Oyoko Dec 2011

Avian Hazard Advisory System (Ahas): An Evaluation Of Ahas Accuracy As A Predictive Tool In Bird Strike Risk Assessment For Civil Aviation, Inger Catherine Oyoko

Theses and Dissertations

The problem of bird strikes began when human aviators made their first ventures in flight and joined birds in an already crowded environment. In the decades following these first flights, the bird strike problem has resulted in numerous fatalities and millions of dollars worth of damaged or destroyed aircraft in both civil and military aviation. The problem has been further exacerbated by the technological leaps in the aviation industry such as the increase in the number of aircraft and engines on an aircraft, the introduction of the jet engine, and also faster, quieter more efficient engine design making aircraft harder …


Validation Of A Model Of Information Systems User Competency, Brenda Eschenbrenner, Fiona Fui-Hoon Nah Dec 2011

Validation Of A Model Of Information Systems User Competency, Brenda Eschenbrenner, Fiona Fui-Hoon Nah

Research Collection School Of Computing and Information Systems

IS user competency, or the ability to realize the fullest potential and the greatest performance from IS use, is important for IS users. However, which factors contribute to IS user competency is unclear. Based on the findings of previous research, a model of IS user competency was developed that focuses on IS-specific characteristics: (i) domain knowledge of and skills in IS, (ii) willingness to try and to explore IS, and (iii) capability of perceiving IS value. The model was validated using the survey approach and the findings suggest that all three factors are pivotal to IS user competency, with willingness …


United States Food Law Update: Moving Toward A More Balanced Food Regulatory Regime, A. Bryan Endres, Nicholas R. Johnson Dec 2011

United States Food Law Update: Moving Toward A More Balanced Food Regulatory Regime, A. Bryan Endres, Nicholas R. Johnson

Journal of Food Law & Policy

For decades, the federal government has played a significant role in promoting healthy eating. In the early 1900s, the United States Department of Agriculture (USDA) promoted a foundational diet of milk, proteins, fruits and vegetables, and grains. Most Americans are at least somewhat familiar, although perhaps confused, with the more nuanced healthy eating recommendations contained in the food pyramid - first employed in 1992. And virtually every American has experienced the federally supported school lunch program. In the first half of 2011, these two iconic programs underwent significant change as part of a stepped-up effort to improve the health of …


Thermal Tolerance Of Age-0 Gulf Of Mexico Striped Bass (Morone Saxatilis): Ontogenetic And Genetic Effects, Corey Robert Anderson Dec 2011

Thermal Tolerance Of Age-0 Gulf Of Mexico Striped Bass (Morone Saxatilis): Ontogenetic And Genetic Effects, Corey Robert Anderson

Master's Theses

Striped bass, Morone saxatilis, were historically abundant in the Gulf of Mexico region but were largely extirpated from most Gulf rivers by the early 1960s. Since 1967 hatchery stocking has supported populations in Mississippi rivers and to date there is no evidence of natural reproduction. Intolerance of striped bass to high water temperature is a potential factor negatively impacting Gulf striped bass survival and reproductive fitness, and may be a limiting factor to reintroduction of the species in Mississippi. This work contributed to restoration efforts by establishing molecular tools necessary for genetic monitoring of striped bass restoration, and evaluating …


Prevalence Of And Risk Factors Of Patellar Luxation In Dogs In Chiang Mai, Thailand, During The Years 2006–2011, Korakot Nganvongpanit, Terdsak Yano Dec 2011

Prevalence Of And Risk Factors Of Patellar Luxation In Dogs In Chiang Mai, Thailand, During The Years 2006–2011, Korakot Nganvongpanit, Terdsak Yano

The Thai Journal of Veterinary Medicine

The purpose of this study was to report on the incidence of patellar luxation in 128 dogs out of a total of 317dogs (40.3%) treated at orthopedic clinics in Chiang Mai, Thailand, from October 2006 through May 2011. Patellarluxation was most frequently found in small breeds, among which Poodles were the most commonly affected (34.3%).Most luxations were medial (89%), and 57.8% of affected dogs were female. Uniluxation of the patella was found in63%, and biluxation in 37%. Most dogs were classified as patellar luxation grade III. Cranial cruciate ligament rupturewas found only in medial patellar luxation grade IV. This study …


Effect Of Dietary Fiber, Ocimum Canum And Psyllium Seed, In High Cholesterol-Diet Fed Rats, Alisara Suriyasomboon, Annop Suriyasomboon, Surachai Chantip, Amorn Petchsom Dec 2011

Effect Of Dietary Fiber, Ocimum Canum And Psyllium Seed, In High Cholesterol-Diet Fed Rats, Alisara Suriyasomboon, Annop Suriyasomboon, Surachai Chantip, Amorn Petchsom

The Thai Journal of Veterinary Medicine

The aim of this study was to investigate the long term effect of dietary fiber, Ocimum canum and psylliumseed, on body weight and lipid level in blood of high cholesterol-diet fed rats. A total of 36 rats were divided into 3groups. There were 6-male and 6-female rats in each group. The control group (CTR) received the standard dietadded with 2.5% cholesterol of dry feed (HCD). The Occimum canum (Trt-OC) and the psyllium seed group (Trt-PS)received the HCD added with Occimum canum and psyllium seed at the amount of 10% of the dry feed, respectively.Daily feed intake was recorded. Body weight …


Methanolic Activities Of Selected Weeds On Bacteria Isolated From Macrobrachium Rosenbergii Larvae, Najiah Musa, Nadirah Musa, Wan Nurhafizah Ibrahim, Mohd Zahrol Ariff Shariat, Arief Izzairy Zamani, Muhd Ranzi Abdullah, Tee Lea Wee, Mariam Marip, Laith Abdul Razak, Amar Sakhawi Awang Soh Dec 2011

Methanolic Activities Of Selected Weeds On Bacteria Isolated From Macrobrachium Rosenbergii Larvae, Najiah Musa, Nadirah Musa, Wan Nurhafizah Ibrahim, Mohd Zahrol Ariff Shariat, Arief Izzairy Zamani, Muhd Ranzi Abdullah, Tee Lea Wee, Mariam Marip, Laith Abdul Razak, Amar Sakhawi Awang Soh

The Thai Journal of Veterinary Medicine

The methanolic crude extracts of three weeds, Soapbush or Koster’s Curse (Clidemia hirta), Spanish Flag orWest Indian Lantana (Lantana camara), and Indian rhododendron (Melastoma malabathricum) were studied for theirantibacterial properties. The crude extracts were tested against ten bacterial isolates from giant freshwater prawnlarvae, Macrobrachium rosenbergii. Clidemia hirta extract showed the best MIC and MBC values against Vibrioalginolyticus which were 0.39 mg/ml and 6.25 mg/ml, respectively. Following that, three lowest concentration ofmethanolic crude extracts; 0.195 mg/ml, 0.39 mg/ml, and 0.78 mg/ml, were added to V. alginolyticus culture andobserved for morphological changes via Scanning Electron Microscope (SEM). The cell wall of V. …


Ophthalmology Snapshot, Nalinee Tuntivanich Dec 2011

Ophthalmology Snapshot, Nalinee Tuntivanich

The Thai Journal of Veterinary Medicine

No abstract provided.


Ultrasound Diagnosis, Phiwipha Kamonrat Dec 2011

Ultrasound Diagnosis, Phiwipha Kamonrat

The Thai Journal of Veterinary Medicine

No abstract provided.


Mapping Extension's Networks: Using Social Network Analysis To Explore Extension's Outreach, Tom Bartholomay, Scott Chazdon, Mary S. Marczak, Kathrin C. Walker Dec 2011

Mapping Extension's Networks: Using Social Network Analysis To Explore Extension's Outreach, Tom Bartholomay, Scott Chazdon, Mary S. Marczak, Kathrin C. Walker

Journal of Extension

The University of Minnesota Extension conducted a social network analysis (SNA) to examine its outreach to organizations external to the University of Minnesota. The study found that its outreach network was both broad in its reach and strong in its connections. The study found that SNA offers a unique method for describing and measuring Extension outreach and that SNA can be effectively used to examine internal patterns around outreach while informing strategies toward improved alignment and greater leveraging of institutional knowledge. The findings indicate that SNA has great potential for improving reporting, developing internal collaboration, and conducting system-wide impact evaluations.