Entire DC Network | Open Access Articles | Digital Commons Network™

Information Technology Resource Management In Radiation Oncology, R. Alfredo Siochi, Peter Balter, Charles D. Bloch, Harry S. Bushe, Charles S. Mayo, Bruce H. Curran, Wenzheng Feng, George C. Kagadis, Thomas H. Kirby, Robin L. Stern

Open Access Publications

No abstract provided.

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Cervical Spine Motion During Extrication: A Pilot Study, Jeffrey S. Shafer, Rosanne S. Naunheim

Open Access Publications

No abstract provided.

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Trem-2 (Triggering Receptor Expressed On Myeloid Cells 2) Is A Phagocytic Receptor For Bacteria, Elsa-Noah N'Diaye, Catherine S. Branda, Steven S. Branda, Lisette Nevarez, Marco Colonna, Clifford Lowell, Jessica A. Hamerman, William E. Seaman

Open Access Publications

Phagocytosis, which is essential for the immune response to pathogens, is initiated by specific interactions between pathogens and cell surface receptors expressed by phagocytes. This study identifies triggering receptor expressed on myeloid cells 2 (TREM-2) and its signaling counterpart DAP12 as a molecular complex that promotes phagocytosis of bacteria. Expression of TREM-2-DAP12 enables nonphagocytic Chinese hamster ovary cells to internalize bacteria. This function depends on actin cytoskeleton dynamics and the activity of the small guanosine triphosphatases Rac and Cdc42. Internalization also requires src kinase activity and tyrosine phosphorylation. In bone marrow-derived macrophages, phagocytosis is decreased in the absence of DAP12 …

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Cdc42 Antagonizes Rho1 Activity At Adherens Junctions To Limit Epithelial Cell Apical Tension, Stephen J. Warner, Gregory D. Longmore

Open Access Publications

In epithelia, cells are arranged in an orderly pattern with a defined orientation and shape. Cadherin containing apical adherens junctions (AJs) and the associated actomyosin cytoskeleton likely contribute to epithelial cell shape by providing apical tension. The Rho guanosine triphosphatases are well known regulators of cell junction formation, maintenance, and function. Specifically, Rho promotes actomyosin activity and cell contractility; however, what controls and localizes this Rho activity as epithelia remodel is unresolved. Using mosaic clonal analysis in the Drosophila melanogaster pupal eye, we find that Cdc42 is critical for limiting apical cell tension by antagonizing Rho activity at AJs. Cdc42 …

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Klassevirus 1, A Previously Undescribed Member Of The Family Picornaviridae, Is Globally Widespread, Lori R. Holtz, Stacy R. Finkbeiner, Guoyan Zhao, Carl D. Kirkwood, Rosina Girones, James M. Pipas, David Wang

ICTS Faculty Publications

No abstract provided.

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Genetic Influences On Individual Differences In Nicotine Glucuronidation, Christina N. Lessov-Schlaggar, Neal L. Benowitz, Peyton Jacob Iii, Gary E. Swan

Open Access Publications

No abstract provided.

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Flexible Mx Specification Of Various Extended Twin Kinship Designs, Hermine H. Maes, Michael C. Neale, Sarah E. Medland, Matthew C. Keller, Nicholas G. Martin, Andrew C. Heath, Lindon J. Eaves

Open Access Publications

No abstract provided.

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Blast-Related Brain Injury: Imaging For Clinical And Research Applications: Report Of The 2008 St. Louis Workshop, Tammie L.S Benzinger, David Brody, Mark A. Mintun, R. Gilbert Jost, Karen Kharasch, Philip V. Bayly, Maurizio Corbetta, Joseph P. Culver, Evan D. Kharasch, Christine Mac Donald, Daniel Marcus, Steve Petersen, Kathy J. Pierce, Jose Pineda, Joshua S. Shimony, Victor Sheng-Kwei Song, Gregory Zipfel, Et Al

Open Access Publications

No abstract provided.

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Impact Speed Does Not Determine Severity Of Spinal Cord Injury In Mice With Fixed Impact Displacement, Joong Hee Kim, Tsang-Wei Tu, Philip V. Bayly, Sheng-Kwei Song

Open Access Publications

No abstract provided.

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Robotic-Assisted Partial Nephrectomy: Surgical Technique Using A 3-Arm Approach And Sliding-Clip Renorrhaphy, Jose M. Cabello, Brian M. Benway, Sam B. Bhayani

Open Access Publications

No abstract provided.

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The Costs Of Carbon: Examining The Competitiveness And International Trade Dimensions Of The Waxman-Markey House Bill, Svetlana German

Sabin Center for Climate Change Law

As the United States considers unilateral climate change action, uncertainty exists as to the compatibility of the proposed trade related measures to global warming. This paper considers the rationale behind any trade measures designed to address competitiveness and carbon leakage following the introduction of unilateral climate change legislation (Part I). The paper then assesses the international legality of the proposed measures in the Waxman-Markey Bill under World Trade Organisation (WTO) law (Part II) and proposes alternative mechanisms that may yield economically sound solutions while remaining mindful of equitable principles (Part III).

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Evaluating Task-Technology Fit And User Performance For An Electronic Health Record System, Matthew J. Wills, Omar F. El-Gayar, Amit Deokar

Research & Publications

Assessing user satisfaction, acceptance and performance impacts of information systems have long traditions in information systems research. With an increasing focus on broader adoption and implementation of electronic health records (EHR’s), research examining user evaluation and performance impacts will play an essential role in the successful design, implementation, and efficient use of these systems. In this study, we analyze user evaluations of an EHR system and assess the impact on individual performance of such systems using the Task-technology Fit (TTF) theory. TTF postulates that individual performance is more likely to be positively impacted if there is a “fit” between the …

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Enabling Distributed Model Management Using Semantic Web Technologies, Amit Deokar, Omar F. El-Gayar

Research & Publications

In today's increasingly dynamic and competitive business environment, organizations strive to leverage their information resources to gain and sustain competitive advantage. Decision models as knowledge objects encapsulating problem situations, as well as means for leveraging information stored in corporate data warehouses, have positioned such models as an organizational resource that need to be managed, shared and re-used. Recent developments in distributed information technologies and the increasing reliance on such technologies by organization requires that model management accommodates today's distribute infrastructure landscape.In this paper, we leverage recent developments in semantic Web technologies to enable model management functions in a distributed and …

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Longitudinal Examination Of Student Attitudes Towards Enhanced Instruction With Tablet Pc, Mark Moran, Jack Walters, Rick Puetz

Research & Publications

This study measures student’s attitudes towards tablet personal computer (TPC) enhanced instruction. The goal of this study is to develop a theoretical model that measures student’s attitudes toward the implementation of TPCs. The participants will be tracked longitudinally during their academic careers with an online five point Likert scale survey. Subject confidentiality is maintained by utilizing an outside entity to assign and manage participant identification numbers.

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A New Perspective On Semantics Of Data Provenance, Sudha Ram, Jun Liu

Research & Publications

Data Provenance refers to the "origin", "lineage", and "source" of data. In this work, we examine provenance from a semantics perspective and present the W7 model, an ontological model of data provenance. In the W7 model, provenance is conceptualized as a combination of seven interconnected elements including "what", "when", "where", "how", "who", "which" and "why". Each of these components may be used to track events that affect data during its lifetime. The W7 model is general and extensible enough to capture provenance semantics for data in different domains. Using the example of the Wikipedia, we illustrate how the W7 model …

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Information Sharing: A Study Of Information Attributes And Their Relative Significance During Catastrophic Events, Preeti Singh, Pranav Singh, Insu Park, Jinkyu Lee, H.Raghav Rao

Research & Publications

We live in a digital era where the global community relies on Information Systems to conduct all kinds of operations, including averting or responding to unanticipated risks and disasters. This can only happen when there is a robust information exchange facilitation mechanism in place, which can help in taking quick and legitimate steps in dealing with any kind of emergent situation. Prior literature in the field of information assurance has focused on building defense mechanisms to protect assets and reduce vulnerability to foreign attacks. Nevertheless, information assurance does not simply mean building an impermeable membrane and safeguarding information, but also …

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The Paradox Of Victim-Centrism: Victim Participation At The Khmer Rouge Tribunal, Mahdev Mohan

Research Collection Yong Pung How School Of Law

It has been claimed - though not proved - that victims will be benefited by participation in international criminal tribunals. This article interrogates this claim in the context of victim participation at the Extraordinary Chambers in the Courts of Cambodia (ECCC), commonly referred to as the Khmer Rouge Tribunal. Based on interviews with Cambodian victims and Tribunal affiliates, it examines why and how the Tribunal permits victims to intervene as les parties civile, pulling together the normative and legal basis for this mode of victim participation. This article does not purport to generalize with confidence about Cambodian victims in general, …

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Using Blogs As A Teaching Tool In Negotiation, Ian Macduff

Research Collection Yong Pung How School Of Law

This article reports on the experimental use of blogs as a teaching tool in a course on negotiation and mediation. The blogs were of two kinds: individual journal blogs accessible only by the student author and the course instructor, and a class or collective blog, accessible by all members of the course. The use of blogs builds on the familiar use of journals as a tool for reflection and personal review and adopts the technology of online communication with which the student body is increasingly familiar and comfortable. The article reports on the student response to this development and the …

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The Declining Significance Of Presidential Races?, Angela Onwuachi-Willig, Osamudia R. James

Articles

No abstract provided.

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Ethically Representing A Lying Cooperator: Disclosure As The Nuclear Deterrent, Bruce A. Green

Faculty Scholarship

No abstract provided.

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Effect Of Cooperative Learning And Traditional Strategies On Academic Performance In Middle School Language Arts, Susan Queen

Walden Dissertations and Doctoral Studies

Research indicates that the use of cooperative learning techniques fosters higher order thinking and problem solving skills in students. However additional information is needed to determine how cooperative learning affects various groups of learners. Based in constructivist theory, this quasi-experimental study examined the effects of cooperative learning verses traditional teaching strategies on the academic performance of 216 6th grade language arts students in north central Georgia. The single stage convenience sample was divided into a control group that was instructed using traditional strategies; and a treatment group that was instructed using cooperative learning strategies. Pre and posttest scores from a …

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A Survey Of Community College Faculty, Their Teaching Methodologies, And Congruence With Student Learning Needs, Susan J. Campbell

Walden Dissertations and Doctoral Studies

National movements for greater quality in education have increased concerns about student learning and the effectiveness of teaching for the community college. Faculty are responsible for student learning, yet criticized for using ineffective teaching methods despite limited data on community college teaching practices. The purpose of this study was to gain a descriptive understanding of current teaching practices in three community colleges. This single-phase study used a concurrent mixed-method exploratory research design. A purposeful sample of 185 community college faculty across three colleges in the southwestern United States were surveyed about what methods they use, how they perceive their teaching …

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General And Special Educators' Attitudes Toward Students With Severe Disabilities Included In The Regular Education Classroom, Tracie Davis

Walden Dissertations and Doctoral Studies

Federal legislation mandates the inclusion of students with disabilities into the regular classroom. This integration is often met with resistance from the educators. The purpose of this study was to determine teachers' attitudes toward the inclusion of students with severe disabilities in the general education classroom. The research problem addressed the attitudes of educators who are implementing inclusion practices for students with severe disabilities. These attitudes are an integral part of successful inclusion practices. The theoretical basis for inclusion can be found in Wolfensberger's normalization principle and his examination of social role valorization which support placing a person with a …

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A Mixed Methods Study Of Secondary Distance-Learning Students: Exploring Learning Styles, Jennifer M. Roberts

Walden Dissertations and Doctoral Studies

Public education in the United States has experienced an increase in distance-learning (DL) opportunities. Because research has focused on student achievement in post-secondary DL programs, little is known about secondary students' experiences. The purpose of the current study was to explore DL applicability within secondary education. Specific research questions addressed by the concurrent mixed methods nested study included examining students' opinions and experiences in a secondary DL course and determining whether individual learning styles were addressed. Structured interviews, group discussions, and a survey were used to gather data over 2 months from 14 students in grades 9 through 12 participating …

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A Phenomenological Study Of Assessment Methods In The Inquiry -Based Science Classroom: How Do Educators Decide?, Gina G. Tash

Walden Dissertations and Doctoral Studies

The purpose of this phenomenological study was to describe the experiences of science educators as they select and develop assessment methods for inquiry learning. Balancing preparations for standardized tests and authentic inquiry assessment experiences can be challenging for science educators. The review of literature revealed that current research focused on instructional methods and assessment, students' assessment experiences, and teachers' instructional methods experiences. There remains a gap in current literature regarding the experiences of science educators as they select and develop assessment methods for inquiry learning. This study filled the gap by providing a description of the experiences of science educators …

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Promoting Breast Cancer Screening Among Chinese American Women Through Young Children's Theatrical Performance, Angela Sun

Walden Dissertations and Doctoral Studies

Research has revealed that underutilization of breast cancer screening by ethnic minorities often is related to language difficulties and cultural values and beliefs about cancer. The problem addressed in this secondary data analysis was the late diagnosis of breast cancer in the Chinese immigrant community. The purpose of the quasi-experimental study was to test the efficacy of a theatrical preschool performance, guided by the diffusion of innovation theory, in educating Chinese American women about breast cancer detection. The research questions sought to determine whether the performance increased the participants' knowledge of breast cancer screening guidelines and whether country of origin, …

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Evaluating Earnings Management With Derivatives And The Use Of Accounting Accruals: A Quasi Experimental Approach, Margot S. Geagon

Walden Dissertations and Doctoral Studies

Most companies listed on the S&P 500 index have reported smoothed earnings since the 1990s inspiring questions from regulators about the accuracy of financial statements. In 1998, the Financial Accounting Standards Board issued SFAS No. 133 (Accounting for Derivative Instruments and Hedging Activities) to establish accounting and reporting standards for derivative instruments. In 2002, the Sarbanes-Oxley Act (SOX) was issued to eradicate earnings management activities and improve transparency in financial reporting. Although many studies have been conducted to evaluate changes in reporting requirements, much less is known about the effectiveness of these regulations on earning smoothing with discretionary accruals (DA) …

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Mandated Differentiated Instruction Effectiveness Examined, Kathlyn Joan Graham

Walden Dissertations and Doctoral Studies

Educational institutions are implementing curriculum mandates without data to support the benefits of the mandates to students. The purpose of this concurrent, mixed-method study, which utilizes quasi-experimental and case study approaches, was to address the effectiveness of mandated differentiated instruction in a suburban high school. This study investigated the significant differences in achievement before and after the implementation of differentiation as well as differences in achievement between a school that mandated the use of differentiation and one that did not. The study also investigated strategies used to implement differentiation and student and teacher attitudes toward it. For ninth grade literature …

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An Examination Of Cooperative Learning Models And Achievement In Middle And Secondary Level Social Studies, Jeffrey R. Niemi

Walden Dissertations and Doctoral Studies

There is a lack of understanding of different cooperative learning methods and their effects on student achievement in middle and secondary level social studies education. The purpose of this quasi-experimental study was to compare two different cooperative learning models in terms of their effects on student achievement in middle level social studies classes. The research question addressed in this study involved understanding the nature of the relationships between different cooperative learning models, gender, ability level and achievement in social studies students. The two cooperative learning models compared were the structured dyad model, which was effective in studies on reading achievement, …

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The Effects Of Art Education On Self -Efficacy In Middle School Students, Ellen P. Mitchell

Walden Dissertations and Doctoral Studies

Researchers have theorized that student achievement and its contingent effects on self-efficacy are important factors in art education. There is, however, a paucity of research addressing this relationship, which in turn affects students' and educators' levels of success. Accordingly, this study was an investigation of the relationship between art education and self-efficacy in middle school students and tested the constructivist theory, as embodied in Bandera's theories on the foundations of self-efficacy beliefs. This pretest-posttest control-group true experimental design tested the relationship between the independent variable, art education and the dependent variable, self-efficacy in middle school students. The instrument, Patterns of …

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Full-Text Articles in Entire DC Network

Information Technology Resource Management In Radiation Oncology, R. Alfredo Siochi, Peter Balter, Charles D. Bloch, Harry S. Bushe, Charles S. Mayo, Bruce H. Curran, Wenzheng Feng, George C. Kagadis, Thomas H. Kirby, Robin L. Stern

Open Access Publications

Cervical Spine Motion During Extrication: A Pilot Study, Jeffrey S. Shafer, Rosanne S. Naunheim

Open Access Publications

Trem-2 (Triggering Receptor Expressed On Myeloid Cells 2) Is A Phagocytic Receptor For Bacteria, Elsa-Noah N'Diaye, Catherine S. Branda, Steven S. Branda, Lisette Nevarez, Marco Colonna, Clifford Lowell, Jessica A. Hamerman, William E. Seaman

Open Access Publications

Cdc42 Antagonizes Rho1 Activity At Adherens Junctions To Limit Epithelial Cell Apical Tension, Stephen J. Warner, Gregory D. Longmore

Open Access Publications

Klassevirus 1, A Previously Undescribed Member Of The Family Picornaviridae, Is Globally Widespread, Lori R. Holtz, Stacy R. Finkbeiner, Guoyan Zhao, Carl D. Kirkwood, Rosina Girones, James M. Pipas, David Wang

ICTS Faculty Publications

Genetic Influences On Individual Differences In Nicotine Glucuronidation, Christina N. Lessov-Schlaggar, Neal L. Benowitz, Peyton Jacob Iii, Gary E. Swan

Open Access Publications

Flexible Mx Specification Of Various Extended Twin Kinship Designs, Hermine H. Maes, Michael C. Neale, Sarah E. Medland, Matthew C. Keller, Nicholas G. Martin, Andrew C. Heath, Lindon J. Eaves

Open Access Publications

Open Access Publications

Impact Speed Does Not Determine Severity Of Spinal Cord Injury In Mice With Fixed Impact Displacement, Joong Hee Kim, Tsang-Wei Tu, Philip V. Bayly, Sheng-Kwei Song

Open Access Publications

Robotic-Assisted Partial Nephrectomy: Surgical Technique Using A 3-Arm Approach And Sliding-Clip Renorrhaphy, Jose M. Cabello, Brian M. Benway, Sam B. Bhayani

Open Access Publications

The Costs Of Carbon: Examining The Competitiveness And International Trade Dimensions Of The Waxman-Markey House Bill, Svetlana German

Sabin Center for Climate Change Law

Evaluating Task-Technology Fit And User Performance For An Electronic Health Record System, Matthew J. Wills, Omar F. El-Gayar, Amit Deokar

Research & Publications

Enabling Distributed Model Management Using Semantic Web Technologies, Amit Deokar, Omar F. El-Gayar

Research & Publications

Longitudinal Examination Of Student Attitudes Towards Enhanced Instruction With Tablet Pc, Mark Moran, Jack Walters, Rick Puetz

Research & Publications

A New Perspective On Semantics Of Data Provenance, Sudha Ram, Jun Liu

Research & Publications

Information Sharing: A Study Of Information Attributes And Their Relative Significance During Catastrophic Events, Preeti Singh, Pranav Singh, Insu Park, Jinkyu Lee, H.Raghav Rao

Research & Publications

The Paradox Of Victim-Centrism: Victim Participation At The Khmer Rouge Tribunal, Mahdev Mohan

Research Collection Yong Pung How School Of Law

Using Blogs As A Teaching Tool In Negotiation, Ian Macduff

Research Collection Yong Pung How School Of Law

The Declining Significance Of Presidential Races?, Angela Onwuachi-Willig, Osamudia R. James

Articles

Ethically Representing A Lying Cooperator: Disclosure As The Nuclear Deterrent, Bruce A. Green

Faculty Scholarship

Effect Of Cooperative Learning And Traditional Strategies On Academic Performance In Middle School Language Arts, Susan Queen

Walden Dissertations and Doctoral Studies

A Survey Of Community College Faculty, Their Teaching Methodologies, And Congruence With Student Learning Needs, Susan J. Campbell

Walden Dissertations and Doctoral Studies

General And Special Educators' Attitudes Toward Students With Severe Disabilities Included In The Regular Education Classroom, Tracie Davis

Walden Dissertations and Doctoral Studies

A Mixed Methods Study Of Secondary Distance-Learning Students: Exploring Learning Styles, Jennifer M. Roberts

Walden Dissertations and Doctoral Studies

A Phenomenological Study Of Assessment Methods In The Inquiry -Based Science Classroom: How Do Educators Decide?, Gina G. Tash

Walden Dissertations and Doctoral Studies

Promoting Breast Cancer Screening Among Chinese American Women Through Young Children's Theatrical Performance, Angela Sun

Walden Dissertations and Doctoral Studies

Evaluating Earnings Management With Derivatives And The Use Of Accounting Accruals: A Quasi Experimental Approach, Margot S. Geagon

Walden Dissertations and Doctoral Studies

Mandated Differentiated Instruction Effectiveness Examined, Kathlyn Joan Graham

Walden Dissertations and Doctoral Studies

An Examination Of Cooperative Learning Models And Achievement In Middle And Secondary Level Social Studies, Jeffrey R. Niemi

Walden Dissertations and Doctoral Studies

The Effects Of Art Education On Self -Efficacy In Middle School Students, Ellen P. Mitchell

Walden Dissertations and Doctoral Studies