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Memphis, TN, United States

LeMoyne–Owen College is a fully accredited, four-year private historically black college located in Memphis, Tennessee, affiliated with the United Church of Christ. It resulted from the 1968 merger of historically black colleges and other schools established by northern Protestant missions during and after the American Civil War to educate freedmen. Wikipedia.

Zimmer J.C.,LeMoyne-Owen College | Arsal R.E.,Clemson University | Al-Marzouq M.,Kuwait University | Grover V.,Clemson University
Information and Management | Year: 2010

Organizations rely on customer information to design new products and offer new services. However, people should not share their personal information online. We produced and tested a model of information disclosure. While prior work focused on the effects of trust and its relationship to risk in determining intent to disclose information, we assumed that information relevance was a critical antecedent to disclosure and that both relevance and trust could alleviate perceptions of risk associated with disclosure, thereby increasing peoples' intentions to disclose information. We tested our model using 264 subjects in an experimental setting. The results showed the importance of relevance on intentions to disclose information - allowing us to draw implications for practice about voluntary information disclosure in online settings. © 2009 Elsevier B.V. All rights reserved.

Hamada Y.Z.,University of Missouri-St. Louis | Hamada Y.Z.,LeMoyne-Owen College | Harris W.R.,University of Missouri-St. Louis | Rath N.P.,University of Missouri-St. Louis
International Journal of Green Nanotechnology | Year: 2013

The crystal structure of the newly synthesized ligand pyridoxal amino methyl phosphonic acid (PYRAMPA) from green materials in deionized water and methanol is presented. It took only two steps to prepare this new ligand. The ligands' stability constants with Al3+ are also reported in aqueous solutions at 25 °C±0.1°C. The ligand was introduced as part of our concerted efforts to identify and synthesize an orally effective aluminum sequestering agent due to the known toxic effect of aluminum in living organisms particularly humans. PYRAMPA is a multidentate ligand suitable to sequester aluminum with very high stability. © The Author(s) 2013.

Mendonca D.,Rensselaer Polytechnic Institute | Brooks J.D.,Rensselaer Polytechnic Institute | Grabowski M.,Rensselaer Polytechnic Institute | Grabowski M.,LeMoyne-Owen College
IEEE Transactions on Human-Machine Systems | Year: 2014

This paper considers how changes in team composition (such as the number and rate of turnover of team members) are linked to team performance, as assessed in terms of efficiency, effectiveness, and equality (i.e., distribution of effort). Study data are taken from a large-scale, postdisaster debris removal operation in the USA, collected through existing transaction-level data logging systems. The data enable a detailed (and objective) examination of team performance, thus overcoming many shortcomings of retrospective methods such as questionnaires. The results show that the increased turnover diminishes performance along all dimensions, while an increased team size contributes to effectiveness but reduces equality. Implications of this study for theory and future empirical work are both discussed. © 2013 IEEE.

Tremper-Wells B.,Cornell University | Tremper-Wells B.,LeMoyne-Owen College | Resnick R.J.,Cornell University | Zheng X.,Cornell University | And 2 more authors.
Genes to Cells | Year: 2010

Two isoforms of the transmembrane protein tyrosine phosphatase PTPα, which differ by nine amino acids in their extracellular regions, are expressed in a tissue-specific manner. Over-expression of the shorter isoform transforms rodent cells, and it has previously been reasonable to assume that this was a direct consequence of its dephosphorylation and activation of Src. Transformation by the longer wild-type isoform has not previously been studied. We tested the activities of both isoforms in NIH3T3 cells and found that, while both dephosphorylated and activated Src similarly, only the shorter isoform induced focus formation or anchorage-independent growth. Differences in phosphorylation of PTPα at its known regulatory sites, Grb2 binding to PTPα, phosphorylation level of focal adhesion kinase by PTPα, or overall localization were excluded as possible explanations for the differences in transforming activities. The results suggest that transformation by PTPα involves at least one function other than, or in addition to, its activation of Src and that this depends on PTPα's extracellular domain. Previous studies have suggested that PTPα might be a useful target in breast and colon cancer therapy, and the results presented here suggest that it may be advantageous to develop isoform-specific therapeutic reagents. © 2010 The Authors. Journal compilation © 2010 by the Molecular Biology Society of Japan/Blackwell Publishing Ltd.

Athenikos S.J.,Drexel University | Han H.,LeMoyne-Owen College
Computer Methods and Programs in Biomedicine | Year: 2010

Objectives: In this survey, we reviewed the current state of the art in biomedical QA (Question Answering), within a broader framework of semantic knowledge-based QA approaches, and projected directions for the future research development in this critical area of intersection between Artificial Intelligence, Information Retrieval, and Biomedical Informatics. Materials and methods: We devised a conceptual framework within which to categorize current QA approaches. In particular, we used " semantic knowledge-based QA" as a category under which to subsume QA techniques and approaches, both corpus-based and knowledge base (KB)-based, that utilize semantic knowledge-informed techniques in the QA process, and we further classified those approaches into three subcategories: (1) semantics-based, (2) inference-based, and (3) logic-based. Based on the framework, we first conducted a survey of open-domain or non-biomedical-domain QA approaches that belong to each of the three subcategories. We then conducted an in-depth review of biomedical QA, by first noting the characteristics of, and resources available for, biomedical QA and then reviewing medical QA approaches and biological QA approaches, in turn. The research articles reviewed in this paper were found and selected through online searches. Results: Our review suggested the following tasks ahead for the future research development in this area: (1) Construction of domain-specific typology and taxonomy of questions (biological QA), (2) Development of more sophisticated techniques for natural language (NL) question analysis and classification, (3) Development of effective methods for answer generation from potentially conflicting evidences, (4) More extensive and integrated utilization of semantic knowledge throughout the QA process, and (5) Incorporation of logic and reasoning mechanisms for answer inference. Conclusion: Corresponding to the growth of biomedical information, there is a growing need for QA systems that can help users better utilize the ever-accumulating information. Continued research toward development of more sophisticated techniques for processing NL text, for utilizing semantic knowledge, and for incorporating logic and reasoning mechanisms, will lead to more useful QA systems. © 2009 Elsevier Ireland Ltd.

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