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Plot Scale Factor Models For Standard Orthographic Views, Edward E. Osakue Apr 2007

Plot Scale Factor Models For Standard Orthographic Views, Edward E. Osakue

Faculty Publications

Geometric modeling provides graphic representations of real or abstract objects. Realistic representation requires three dimensional (3D) attributes since natural objects have three principal dimensions. CAD software gives the user the ability to construct realistic 3D models of objects, but often prints of these models must be generated on two dimensional (2D) standard sized sheets. The transformation of 3D objects into 2D representations on standard-sized sheets requires one to use a proportional relationship called a scale, which is defined by a scale factor (SF). Two mathematical models for a scale factor, one for reduction scaling and the other for …

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Multi-Class Classification Averaging Fusion For Detecting Steganography, Benjamin M. Rodriguez, Gilbert L. Peterson, Sos S. Agaian Apr 2007

Multi-Class Classification Averaging Fusion For Detecting Steganography, Benjamin M. Rodriguez, Gilbert L. Peterson, Sos S. Agaian

Faculty Publications

Multiple classifier fusion has the capability of increasing classification accuracy over individual classifier systems. This paper focuses on the development of a multi-class classification fusion based on weighted averaging of posterior class probabilities. This fusion system is applied to the steganography fingerprint domain, in which the classifier identifies the statistical patterns in an image which distinguish one steganography algorithm from another. Specifically we focus on algorithms in which jpeg images provide the cover in order to communicate covertly. The embedding methods targeted are F5, JSteg, Model Based, OutGuess, and StegHide. The developed multi-class steganalvsis system consists of three levels: (1) …

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Steganography Anomaly Detection Using Simple One Class Classification, Benjamin M. Rodriguez, Gilbert L. Peterson, Sos S. Agaian Apr 2007

Steganography Anomaly Detection Using Simple One Class Classification, Benjamin M. Rodriguez, Gilbert L. Peterson, Sos S. Agaian

Faculty Publications

No abstract provided.

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The Niemann-Pick Type C2 Protein Loads Isoglobotrihexosylceramide Onto Cd1d Molecules And Contributes To The Thymic Selection Of Nkt Cells, Paul B. Savage, Nicolas Schrantz, Yuval Sagiv, Yang Liu, Albert Bendelac, Luc Teyton Mar 2007

The Niemann-Pick Type C2 Protein Loads Isoglobotrihexosylceramide Onto Cd1d Molecules And Contributes To The Thymic Selection Of Nkt Cells, Paul B. Savage, Nicolas Schrantz, Yuval Sagiv, Yang Liu, Albert Bendelac, Luc Teyton

Faculty Publications

The Niemann-Pick type C2 (NPC2) protein is a small, soluble, lysosomal protein important for cholesterol and sphingolipid transport in the lysosome. The immunological phenotype of NPC2-deficient mice was limited to an impaired thymic selection of Valpha 14 natural killer T cells (NKT cells) and a subsequent reduction of NKT cells in the periphery. The remaining NKT cells failed to produce measurable quantities of interferon-gamma in vivo and in vitro after activation with alpha-galactosylceramide. In addition, thymocytes and splenocytes from NPC2-deficient mice were poor presenters of endogenous and exogenous lipids to CD1d-restricted Valpha 14 hybridoma cells. Importantly, we determined that similar …

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Analysis Of Stacked Rotated Gratings, Gregory P. Nordin, P. C. Deguzman, J. Jiang Mar 2007

Analysis Of Stacked Rotated Gratings, Gregory P. Nordin, P. C. Deguzman, J. Jiang

Faculty Publications

We study the rigorous design and analysis of stacked rotated gratings (SRGs) for novel photonic devices. A concept of sampling frequency is proposed to systematically design SRGs. With the help of a rectangular sampling lattice, we extend the standard 3D rigorous coupled-wave analysis (RCWA) algorithm to the analysis of SRGs. The resultant SRG-RCWA algorithm can be used to exactly analyze SRGs that have grating parameters that match the Fourier expansion represented by the sampling lattice. SRGs that do not fall in this category can often still be closely approximated with our approach. The SRG-RCWA algorithm has been successfully applied to …

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Nmr Structural Characterization Of Substrates Bound To N-Acetylglucosaminyltransferase V, Megan A. Macnaughtan, Maria Kamar, Gerardo Alvarez-Manilla, Andre Venot, John Glushka, J. Michael Pierce, James H. Prestegard Mar 2007

Nmr Structural Characterization Of Substrates Bound To N-Acetylglucosaminyltransferase V, Megan A. Macnaughtan, Maria Kamar, Gerardo Alvarez-Manilla, Andre Venot, John Glushka, J. Michael Pierce, James H. Prestegard

Faculty Publications

N-Acetylglucosaminyltransferase V (GnT-V) is an enzyme involved in the biosynthesis of asparagine-linked oligosaccharides. It is responsible for the transfer of N-acetylglucosamine (GlcNAc) from the nucleotide sugar donor, uridine 5'-diphospho-N-acetylglucosamine (UDP-GlcNAc), to the 6 position of the α-1-6 linked Man residue in N-linked oligosaccharide core structures. GnT-V up-regulation has been linked to increased cancer invasiveness and metastasis and, appropriately, targeted for drug development. However, drug design is impeded by the lack of structural information on the protein and the way in which substrates are bound. Even though the catalytic domain of this type II membrane protein can be expressed in mammalian …

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Maya And Nahuatl In The Teaching Of Spanish, Anne Fountain, Catherine Fountain Mar 2007

Maya And Nahuatl In The Teaching Of Spanish, Anne Fountain, Catherine Fountain

Faculty Publications

No abstract provided.

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Alkalilimnicola Ehrlichii Sp. Nov., A Novel, Arsenite-Oxidizing Haloalkaliphilic Gammaproteobacterium Capable Of Chemoautotrophic Or Heterotrophic Growth With Nitrate Or Oxygen As The Electron Acceptor, Shelley E. Hoeft, Jodi Switzer Blum, John F. Stolz, F. Robert Tabita, Brian Witte, Gary M. King, Joanne M. Santini, Ronald S. Oremland Mar 2007

Alkalilimnicola Ehrlichii Sp. Nov., A Novel, Arsenite-Oxidizing Haloalkaliphilic Gammaproteobacterium Capable Of Chemoautotrophic Or Heterotrophic Growth With Nitrate Or Oxygen As The Electron Acceptor, Shelley E. Hoeft, Jodi Switzer Blum, John F. Stolz, F. Robert Tabita, Brian Witte, Gary M. King, Joanne M. Santini, Ronald S. Oremland

Faculty Publications

A facultative chemoautotrophic bacterium, strain MLHE-1T, was isolated from Mono Lake, an alkaline hypersaline soda lake in California, USA. Cells of strain MLHE-1T were Gram-negative, short motile rods that grew with inorganic electron donors (arsenite, hydrogen, sulfide or thiosulfate) coupled with the reduction of nitrate to nitrite. No aerobic growth was attained with arsenite or sulfide, but hydrogen sustained both aerobic and anaerobic growth. No growth occurred when nitrite or nitrous oxide was substituted for nitrate. Heterotrophic growth was observed under aerobic and anaerobic (nitrate) conditions. Cells of strain MLHE-1T could oxidize but not grow on CO, while CH4 neither …

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Analysis Of A Decade In Library Literature: 1994-2004, Kelly D. Blessinger, Michelle Frasier-Robinson Mar 2007

Analysis Of A Decade In Library Literature: 1994-2004, Kelly D. Blessinger, Michelle Frasier-Robinson

Faculty Publications

The purpose of this study was to analyze trends in publication and citation in library and information science journals over a decade (1994-2004) of the literature. This examination revealed the areas of concentration within the research, frequently published subjects through the years, and the characteristics of the top-cited authors and resources during this time. This information allows those in the field to follow the trends in publication, gives researchers the tools to determine which journals might give their work the most exposure and recognition, and can help libraries to make collection management decisions in this subject area.

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Distribution Of The Hiv Resistance Ccr5-Δ32 Allele Among Egyptians And Syrians, Abdel Halim Salem, Mark A. Batzer Mar 2007

Distribution Of The Hiv Resistance Ccr5-Δ32 Allele Among Egyptians And Syrians, Abdel Halim Salem, Mark A. Batzer

Faculty Publications

A mutant allele of the β-chemokine receptor gene CCR5 bearing a 32-basepair (bp) deletion that prevents cell invasion by the primary transmitting strain of HIV-1 has recently been characterized. Individuals homozygous for the mutation are resistant to infection, even after repeated high-risk exposure, but this resistance appears not absolute, as isolated cases of HIV-positive deletion homozygotes are emerging. The consequence of the heterozygous state is not clear, but it may delay the progression to AIDS in infected individuals. In order to evaluate the frequency distribution of CCR5-Δ32 polymorphism among Egyptians, a total of 200 individuals (154 from Ismailia and 46 …

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Production Of F1 Interspecies Hybrid Offspring With Cryopreserved Sperm From A Live-Bearing Fish, The Swordtail Xiphophorus Helleri, Huiping Yang, Leona Hazlewood, Sheila J. Heater, Paula A. Guerrero, Ronald B. Walter, Terrence R. Tiersch Mar 2007

Production Of F1 Interspecies Hybrid Offspring With Cryopreserved Sperm From A Live-Bearing Fish, The Swordtail Xiphophorus Helleri, Huiping Yang, Leona Hazlewood, Sheila J. Heater, Paula A. Guerrero, Ronald B. Walter, Terrence R. Tiersch

Faculty Publications

Despite study of sperm cryopreservation in more than 200 fish species, production of broods from cryopreserved sperm in live-bearing fish has not been demonstrated. This has not been due to a lack of effort, but instead is a result of the unique morphology, biology, and biochemistry of reproduction in viviparous fishes. For example, sperm of Xiphophorus helleri have a cylindrical nucleus, can swim for days after being activated, have glycolytic capabilities, and can reside in the female reproduction tract for months before fertilization. These traits are not found in fishes with external fertilization. The long-standing research use of the genus …

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First Record Of A Sleeper Shark In The Western Gulf Of Mexico And Comments On Taxonomic Uncertainty Within Somniosus (Somniosus), George W. Benz, Eric R. Hoffmayer, William B. Driggers, Dan Allen, Lougan E. Bishop, David A. Brown Mar 2007

First Record Of A Sleeper Shark In The Western Gulf Of Mexico And Comments On Taxonomic Uncertainty Within Somniosus (Somniosus), George W. Benz, Eric R. Hoffmayer, William B. Driggers, Dan Allen, Lougan E. Bishop, David A. Brown

Faculty Publications

A sleeper shark, Somniosus (Somniosus) sp., is reported from Alaminos Canyon in the western Gulf of Mexico at a depth of about 2647 m based on observations made using a remotely operated vehicle. This is the first record of a sleeper shark (Somniosus, Somniosidae) from the western Gulf of Mexico and deepest record of any shark from the Gulf of Mexico. Despite claims to the contrary in the literature, no taxonomic character has been identified to date that can be used to unequivocally identify all representatives of Somniosus (Somniosus), and as a result, some species records must be considered dubious.

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Situating Accountability: Seeking Salvation For The Core Concept Of Modern Governance, Melvin J. Dubnick Feb 2007

Situating Accountability: Seeking Salvation For The Core Concept Of Modern Governance, Melvin J. Dubnick

Faculty Publications

The obsessive and extensive attention given to “accountability” over the past several years has not been matched by sufficient attention to the concept’s place and role in modern governance. Its undisciplined application in rhetorical, critical and analytic contexts has reduced the concept to a pointless and free-floating label that has lost its value as a meaningful term of art in the study of government and political life. This paper is an effort to remedy that circumstance – to seek a form of “salvation” for the idea of accountability by engaging in an effort to “situate” the concept linguistically, functionally, historically …

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Evaluating The Impact On Users From Implementing A Course Management System, Charles R. Graham, Meghan M. Kennedy, Gregory L. Waddoups, Richard E. West Feb 2007

Evaluating The Impact On Users From Implementing A Course Management System, Charles R. Graham, Meghan M. Kennedy, Gregory L. Waddoups, Richard E. West

Faculty Publications

Nearly all colleges and universities are using some form of e-learning system, usually an expensive course management system (CMS), to create online course offerings or to enhance regular, classroom-oriented courses. Our university has invested a large amount of resources into purchasing and supporting one of the two most popular CMS vendors, and it has become imperative to understand what the effects from using this technology have been, as well as how we can improve the integration of this and other educational technologies into different instructional contexts. This project, through a combination of surveys, call-log analysis, and interviews, was used to …

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Two Sides Of The Same Coin? The Differing Roles Of Assets And Consumer Debt In Marriage, Jeffrey P. Dew Feb 2007

Two Sides Of The Same Coin? The Differing Roles Of Assets And Consumer Debt In Marriage, Jeffrey P. Dew

Faculty Publications

This study examines whether assets and consumer debts relate to change in marital satisfaction and conflict in opposing ways or in independent ways. It also tests whether these relationships are direct or mediated. Using a nationally representative longitudinal sample, the results indicate that assets and consumer debt influence change in marital outcomes in mostly independent rather than complementary ways. Consistent with prior literature, assets work indirectly by decreasing feelings of economic pressure. Consumer debt, however, directly predicts changes in marital conflict, even after controlling for variables in the family stress model. Debts also act indirectly by decreasing depression once economic …

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Physiological, Ecological, And Phylogenetic Characterization Of Stappia, A Marine Co-Oxidizing Bacterial Genus, Carolyn F. Weber, Gary M. King Feb 2007

Physiological, Ecological, And Phylogenetic Characterization Of Stappia, A Marine Co-Oxidizing Bacterial Genus, Carolyn F. Weber, Gary M. King

Faculty Publications

Bacteria play a major role in marine CO cycling, yet very little is known about the microbes involved. Thirteen CO-oxidizing Stappia isolates obtained from existing cultures, macroalgae, or surf samples representing geographically and ecologically diverse habitats were characterized using biochemical, physiological, and phylogenetic approaches. All isolates were aerobic chemoorganotrophs that oxidized CO at elevated (1,000 ppm) and ambient-to-subambient concentrations (<0.3 ppm). All contained the form I (OMP) coxL gene for aerobic CO dehydrogenase and also the form II (BMS) putative coxL gene. In addition, some strains possessed cbbL, the large subunit gene for ribulose-1,5-bisphosphate carboxylase/oxygenase, suggesting the possibility of lithotrophic or mixotrophic metabolism. All isolates used a wide range of sugars, organic acids, amino acids, and aromatics for growth and grew at salinities from 5 to 45 ppt. All but one isolate denitrified or respired nitrate. Phylogenetic analyses based on 16S rRNA gene sequences indicated that several isolates could not be distinguished from Stappia aggregata and contributed to a widely distributed species complex. Four isolates (of strains GA15, HI, MIO, and M4) were phylogenetically distinct from validly described Stappia species and closely related genera (e.g., Ahrensia, Pannonibacter, Pseudovibrio, and Roseibium). Substrate utilization profiles, enzymatic activity, and membrane lipid composition further distinguished these isolates and supported their designations as new Stappia species. The observed metabolic versatility of Stappia likely accounts for its cosmopolitan distribution and its ability to contribute to CO cycling as well as other important biogeochemical cycles. Copyright © 2007, American Society for Microbiology. All Rights Reserved.

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Threshold Power Of Canonical Antennas For Inducing Sar At Compliance Limits In The 300-3000 Mhz Frequency Range, Mohammod Ali, Mark G. Douglas, Abu T.M. Sayem, Antonio Faraone, Chung-Kwang Chou Feb 2007

Threshold Power Of Canonical Antennas For Inducing Sar At Compliance Limits In The 300-3000 Mhz Frequency Range, Mohammod Ali, Mark G. Douglas, Abu T.M. Sayem, Antonio Faraone, Chung-Kwang Chou

Faculty Publications

A study of the specific absorption rate (SAR) in an exposed body induced by canonical antennas is presented, with the aim of determining an upper bound for the antenna transmit power that demonstrates that a product is inherently compliant with internationally accepted radio frequency (RF) exposure limits. Starting from the fundamental limits in antenna quality factor (Q) and the corresponding bandwidth, several antenna sizes are selected, and their SAR distributions are computed using the method of moments (MoM) and finite-difference time domain (FDTD) method in the frequency range 300-3000 MHz. The threshold powers are then determined, below which the peak …

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Human–Robot Interaction: A Survey, Michael A. Goodrich, Alan C. Schultz Feb 2007

Human–Robot Interaction: A Survey, Michael A. Goodrich, Alan C. Schultz

Faculty Publications

Human–Robot Interaction (HRI) has recently received considerable attention in the academic community, in labs, in technology companies, and through the media. Because of this attention, it is desirable to present a survey of HRI to serve as a tutorial to people outside the field and to promote discussion of a unified vision of HRI within the field. The goal of this review is to present a unified treatment of HRI-related problems, to identify key themes, and discuss challenge problems that are likely to shape the field in the near future. Although the review follows a survey structure, the goal of …

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Understanding The Experiences Of Instructors As They Adopt A Course Management System, Charles R. Graham, Gregory L. Waddoups, Richard E. West Feb 2007

Understanding The Experiences Of Instructors As They Adopt A Course Management System, Charles R. Graham, Gregory L. Waddoups, Richard E. West

Faculty Publications

In this study, we used qualitative methods to help us better understand the experiences of instructors as they are persuaded to adopt a course management system and integrate it into their teaching. We discuss several patterns explaining how instructors implemented Blackboard, a CMS, by experimenting with individual features, facing both technical and integration challenges, and attempting to adapt Blackboard features to match their goals and practices. We also give explanations for why instructors either a) embraced the tool and grew more dependent on it, b) reduced their use of the tool to only some features, or c) discontinued the tool …

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Self-Archiving And The Copyright Transfer Agreements Of Isi-Ranked Library And Information Science Journals, Anita Coleman Jan 2007

Self-Archiving And The Copyright Transfer Agreements Of Isi-Ranked Library And Information Science Journals, Anita Coleman

Faculty Publications

A study of Thomson-Scientific ISI ranked Library and Information Science (LIS) journals (n = 52) is reported. The study examined the stances of publishers as expressed in the Copyright Transfer Agreements (CTAs) of the journals toward self-archiving, the practice of depositing digital copies of one's works in an Open Archives Initiative (OAI)-compliant open access repository. Sixty-two percent (32) do not make their CTAs available on the open Web; 38% (20) do. Of the 38% that do make CTAs available, two are open access journals. Of the 62% that do not have a publicly available CTA, 40% are silent about self-archiving. …

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Tolerance And Democracy Instead Of Fundamentalism And Empire, Guillermo C. Hansen Jan 2007

Tolerance And Democracy Instead Of Fundamentalism And Empire, Guillermo C. Hansen

Faculty Publications

No abstract provided.

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Ecclesial Communion, God's Publicity And Global Citizenship, Gary M. Simpson Jan 2007

Ecclesial Communion, God's Publicity And Global Citizenship, Gary M. Simpson

Faculty Publications

No abstract provided.

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Tolerance And Democracy Instead Of Fundamentalism And Empire, Guillermo C. Hansen Jan 2007

Tolerance And Democracy Instead Of Fundamentalism And Empire, Guillermo C. Hansen

Faculty Publications

No abstract provided.

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Automatic Transmit Power Control Of A Digital Fixed Wireless Link With Co-Channel Interference, Robert H. Morelos-Zaragoza, Kyoung-Whoan Suh, Joo-Hwan Lee Jan 2007

Automatic Transmit Power Control Of A Digital Fixed Wireless Link With Co-Channel Interference, Robert H. Morelos-Zaragoza, Kyoung-Whoan Suh, Joo-Hwan Lee

Faculty Publications

In this paper, a study is presented of the dynamic behavior of an automatic transmit power control (ATPC) loop in a single fixed wireless system (FWS) link subject to multipath fading and an uncorrelated co-channel interferer that does not use ATPC (this represents a so-called non-ATPC FWS link or a fixed satellite link). Fundamental questions include the sensitivity of an ATPC link to multipath interference and the co-channel interference that may be caused by a non-ATPC interferer. In the context of the present project, a good example of a non-ATPC interferer is a fixed satellite to which one antenna in …

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Collaboration: Critical Success Factors For Student Learning, Ken Haycock Jan 2007

Collaboration: Critical Success Factors For Student Learning, Ken Haycock

Faculty Publications

Several studies identify collaboration between classroom teachers and teacher-librarians as a key factor that affects student achievement. Studies in teacher-librarianship have established procedures and processes for effective collaboration. This study examines collaboration from a broader theoretical and research perspective, beginning with 20 factors that specifically influence successful collaborations. These are clustered in six areas: factors related to the environment, to membership characteristics, to process and structure, to communication, to purpose, and to resources. Research from teacher-librarianship is then applied to substantiate and reinforce the factors and provide context for successful collaboration and thus effect on students' learning in schools. Reprinted …

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Implementation Of A Mems Laboratory Course With Modular, Multidisciplinary Team Projects, S J. Lee, S Gleixner, T R. Hsu, David W. Parent Jan 2007

Implementation Of A Mems Laboratory Course With Modular, Multidisciplinary Team Projects, S J. Lee, S Gleixner, T R. Hsu, David W. Parent

Faculty Publications

No abstract provided.

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Was The Accounting Profession Really That Bad?, Elizabeth K. Jenkins, W. Donnelly, T. Black Jan 2007

Was The Accounting Profession Really That Bad?, Elizabeth K. Jenkins, W. Donnelly, T. Black

Faculty Publications

To gain insight into the extent of malpractice in the State of California prior to the Passage of Sarbanes-Oxley, we examined the nature and magnitude of complains filed with the California Board of Accountancy (CBA) against both licensed and unlicensed accountants during the fiscal years 2000, 2001, and 2002. The CBA currently licenses and regulates over 73,000 licenses, with 1,431 complaints filed during the period reviewed. Disciplinary actions were taken against 283 different licensees for the three fiscal years reviewed. SEC issues were involved in 19 cases, theft or embezzlement 46 cases, public accounting malpractice 146 cases, improper retention of …

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Tackling The Monday Morning Quarterback: Applications Of Hindsight Bias In Decision-Making Settings, T. A. Louie, Mahesh N. Rajan, Robert E. Sibley Jan 2007

Tackling The Monday Morning Quarterback: Applications Of Hindsight Bias In Decision-Making Settings, T. A. Louie, Mahesh N. Rajan, Robert E. Sibley

Faculty Publications

Extant research has focused largely on what causes hindsight distortion. In contrast, this work examines applied aspects related to the bias in decision-making environments. A conceptual framework is provided and recent real–world examples are presented to outline how decision makers—and those who observe them—show hindsight effects. Then, both negative and positive consequences of the bias are outlined. Strategies are presented to reduce negative effects that occur when decision makers show hindsight distortion. Finally, because it is often not possible to avoid or to correct others' hindsight–tainted evaluations, suggestions for coping with the bias are discussed.

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The Security Rule, Stephen M. Jerbic, Stephen S. Wu Jan 2007

The Security Rule, Stephen M. Jerbic, Stephen S. Wu

Faculty Publications

No abstract provided.

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Outsourcing In Biopharmaceutical Industry: India's Value Propositions, S. Dhar, Mahesh N. Rajan Jan 2007

Outsourcing In Biopharmaceutical Industry: India's Value Propositions, S. Dhar, Mahesh N. Rajan

Faculty Publications

In this paper we discuss the rationale behind biopharmaceutical outsourcing. We then discuss the benefits, challenges, current trends and market opportunities. From January 2005, India has agreed to comply with the product patent protection in accordance with the obligation under the TRIPS Agreement of the WTO. This has created new opportunities as well as challenges for the Indian biopharmaceutical companies. We analyze the value proposition of India as a suitable destination for outsourcing in biopharmaceutical industry in this new business environment. This research will help managers to understand the benefits of biopharmaceutical outsourcing along with its challenges under the current …

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