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 Decade: 2010-2019
 Year: 2010
 Collection: UNT Scholarly Works
The Biological and Toxicological Activity of Gases and Vapors

The Biological and Toxicological Activity of Gases and Vapors

Date: March 2010
Creator: Abraham, Michael H.; Sánchez-Moreno, Ricardo; Gil-Lostes, Javier; Acree, William E. (William Eugene); Cometto-Muñiz, J. Enrique & Cain, William S.
Description: This article discusses the biological and toxicological activity of gases and vapors. Abstract: A large amount of data on the biological and toxicological activity of gases and vapors has been collected from the literature. Processes include sensory irritation thresholds, the Alarie mouse test, inhalation anasthesia, etc. It is shown that a single equation using only five descriptors (properties of the gases and vapors) plus a set of indicator variables for the given processes can correlate 643 biological and non-lethal toxicological activities of 'non-reactive' compounds with a standard deviation of 0.36 log unit. The equation is scaled to sensory irritation thresholds obtained by the procedure of Cometto-Muñiz, and Cain, and provides a general equation for the prediction of sensory irritation thresholds in man. It is suggested that differences in biological/toxicological activity arise primarily from transport from the gas phase to a receptor phase or area, except for odor detection thresholds where interaction with a receptor(s) is important.
Contributing Partner: UNT College of Arts and Sciences
Phase Transition Enthalpy Measurements of Organic and Organometallic Compounds. Sublimation, Vaporization and Fusion Enthalpies From 1880 to 2010

Phase Transition Enthalpy Measurements of Organic and Organometallic Compounds. Sublimation, Vaporization and Fusion Enthalpies From 1880 to 2010

Date: October 4, 2010
Creator: Acree, William E. (William Eugene) & Chickos, James S.
Description: This article discusses phase transition enthalpy measurements of organic and organometallic compounds. A compendium of phase change enthalpies published within the period 1880-2010 is reported. Phase change enthalpies including fusion, vaporization, and sublimation are included for organic, organometallic, and a few inorganic compounds. This compendium is a combination of three previous series focusing on phase change enthalpies updated to 2009. Sufficient data are presently available for some compounds to permit thermodynamic cycles to be constructed, an important manner of evaluating the reliability of the measurements. Temperature adjustments of phase change enthalpies from the temperature of measurement to the standard reference temperature, T = 298.15 K, are briefly discussed and a protocol for doing so is illustrated.
Contributing Partner: UNT College of Arts and Sciences
Amazon Mechanical Turk for Subjectivity Word Sense Disambiguation

Amazon Mechanical Turk for Subjectivity Word Sense Disambiguation

Date: June 2010
Creator: Akkaya, Cem; Conrad, Alexander; Wiebe, Janyce & Mihalcea, Rada
Description: This paper discusses word sense disambiguation. Abstract: Amazon Mechanical Turk (MTurk) is a marketplace for so-called "human intelligence tasks" (HITs), or tasks that are easy for humans but currently difficult for automated processes. Providers upload tasks to MTurk which workers then complete. Natural language annotation is one such human intelligence task. In this paper, the authors investigate using MTurk to collect annotations for Subjectivity Word Sense Disambiguation (SWSD), a course-grained word sense disambiguation task. The authors investigate whether they can use MTurk to acquire good annotations with respect to gold-standard data, whether they can filter out low-quality workers (spammers), and whether there is a learning effect associated with repeatedly completing the same kind of task. While our results with respect to spammers are inconclusive, the authors are able to obtain high-quality annotations for the SWSD task. These results suggest a greater role for MTurk with respect to constructing a large scale SWSD system in the future, promising substantial improvement in subjectivity and sentiment analysis.
Contributing Partner: UNT College of Engineering
Hybrid Approach for Energy-Aware Synchronization

Hybrid Approach for Energy-Aware Synchronization

Date: December 2010
Creator: Akl, Robert G.; Saravanos, Yanos & Haidar, Mohamad
Description: This book chapter discusses a time synchronization scheme for wireless sensor networks that aims to save sensor battery power while maintaining network connectivity for as long as possible. It focuses on aspects of wireless sensor networks. These include designing a hybrid method between reference broadcast synchronization (RBS) and timing-sync protocol for sensor networks (TPSN) to reduce the number of transmissions required to synchronize an entire network, extending single-hop synchronization methods to operate in large multi-hop networks, verifying that the hybrid methods operate as desired by simulating against RBS and TPSN, and maintaining network connectivity and coverage.
Contributing Partner: UNT College of Engineering
Three Important Things to Consider When Starting Intervention for a Child Diagnosed with Autism

Three Important Things to Consider When Starting Intervention for a Child Diagnosed with Autism

Date: 2010
Creator: Ala'i-Rosales, Shahla & Zeug, Nicole M.
Description: This article discusses important things to consider when starting an intervention for a child diagnosed with autism. The authors discuss questions that one should ask before beginning such an undertaking and important things to consider after the first year of intervention.
Contributing Partner: UNT College of Public Affairs and Community Service
Emerging Opportunities in Higher Education: Applied Behavior Analysis and Autism

Emerging Opportunities in Higher Education: Applied Behavior Analysis and Autism

Date: 2010
Creator: Ala'i-Rosales, Shahla; Roll-Pettersson, Lise, 1955-; Pinkelman, Sarah E. & Cihon, Traci M.
Description: This article discusses applying behavior analysis to autism. Abstract: The growing number of children diagnosed with autism and the recognized importance of evidence-based interventions has substantially increased the need for well-trained applied behavior analysts. Relative to public/consumer demand, there are very few higher education programs that are equipped to train behavior analysts specializing in autism. Worldwide, there are only a few programs accredited by Association for Behavior Analysis International (ABAI), that have course sequences approved by the Behavior Analysis Certification Board (BACB), and have formal institutional course approval for classes in autism and behavior analysis. The purpose of this paper is to introduce a series of expert commentary on the context, content and systems required to build quality higher education programs in autism and applied behavior analysis. Together the articles in this special section of the European Journal of Applied Behavior Analysis form a resource for faculty and university administrators interested in the development of innovative and socially relevant training programs in higher education.
Contributing Partner: UNT College of Public Affairs and Community Service
The Media and Communication Industries: A 21st Century Perspective

The Media and Communication Industries: A 21st Century Perspective

Date: November 2010
Creator: Albarran, Alan B.
Description: This article discusses the media and communication industry. The media and communication industries are experiencing unprecedented change and evolution in the 21st century. This article examines this process with a case study method by analyzing the traditional and new media sectors using the following criteria: the markets in which they are engaged, the leaders in each of the respective industries, the economic potential of these industries, and their continuing evolution and transforming processes. The article argues that the media and communications industries can no longer be identified in terms of core sectors such as broadcasting or newspapers, but rather to a different structure of activities involving such areas as content, distribution, and search features. Further, the paper posits that new theoretical and methodological tools are needed by scholars to better understand the massive changes and transformation occurring across the media sector. A series of propositions concludes the paper, offering a framework on which to build future research and analysis.
Contributing Partner: UNT College of Arts and Sciences
"Good" Digital Collections

"Good" Digital Collections

Date: January 27, 2010
Creator: Alemneh, Daniel Gelaw
Description: This Tech Talks presentation covers the principles that apply to "good" digital collections and analyzes how objects, metadata, and the user interface together create the users' experience of a collection.
Contributing Partner: UNT Libraries
Texas Digital Library (TDL) Metadata Working Group Update

Texas Digital Library (TDL) Metadata Working Group Update

Date: 2010
Creator: Alemneh, Daniel Gelaw
Description: This presentation provides an update on three projects the Texas Digital Library Metadata Working Group (TDL-MWG) is working on. These include designing a metadata information website, creating best practices for images and datasets, and creating metadata courses for Texas Digital Library (TDL) training.
Contributing Partner: UNT Libraries
Exploration of Adoption of Preservation Metadata in Cultural Heritage Institutions

Exploration of Adoption of Preservation Metadata in Cultural Heritage Institutions

Date: 2010
Creator: Alemneh, Daniel Gelaw & Hastings, Samantha Kelly
Description: This paper discusses preservation metadata. Abstract: The challenges of long-term access are multifaceted, often requiring a mixture of approaches. Considering the critical role of metadata in any successful digital preservation strategy, the Preservation Metadata Implementation Strategies (PREMIS) has been extremely influential on providing a "core" set of metadata elements that support the digital preservation process. However, there is no evidence, in the form of previous research, as to what factors explain and predict the level of adoption of PREMIS. This paper attempts to identify factors that affect the adoption of PREMIS in cultural heritage institutions. The study employed a web-based survey to collect data from 123 participants in 20 countries as well as a semi-structured, follow-up telephone interview with a smaller sample of the survey respondents. Roger's diffusion of innovation theory was used as a theoretical framework. The main constructs considered for the study were relative advantage, compatibility, complexity, trialability, observability, and institution readiness. The analysis showed that all six factors influence the adoption of PREMIS in varying degrees. Results of a regression analysis also showed a statistically significant relationship. The R square value for the model was .528, which means that 52.8% of the variance in PREMIS adoption was ...
Contributing Partner: UNT Libraries
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