Digital Commons Network^™

Loop Analysis Of Causal Feedback In Epidemiology: An Illustration Relating To Urban Neighborhoods And Resident Depressive Experiences, Alexis Dinno

Community Health Faculty Publications and Presentations

The causal feedback implied by urban neighborhood conditions that shape human health experiences, that in turn shape neighborhood conditions through a complex causal web, raises a challenge for traditional epidemiological causal analyses. This article introduces the loop analysis method, and builds off of a core loop model linking neighborhood property vacancy rate, resident depressive symptoms, rate of neighborhood death, and rate of neighborhood exit in a feedback network. I justify and apply loop analysis to the specific example of depressive symptoms and abandoned urban residential property to show how inquiries into the behavior of causal systems can answer different kinds …

Can Semantic Web Techniques Empower Comprehension And Projection In Cyber Situational Awareness?, Amit P. Sheth

Kno.e.sis Publications

No abstract provided.

Semantic Convergence Of Wikipedia Articles, Christopher J. Thomas, Amit P. Sheth

Kno.e.sis Publications

Social networking, distributed problem solving and human computation have gained high visibility. Wikipedia is a well established service that incorporates aspects of these three fields of research. For this reason it is a good object of study for determining quality of solutions in a social setting that is open, completely distributed, bottom up and not peer reviewed by certified experts. In particular, this paper aims at identifying semantic convergence of Wikipedia articles; the notion that the content of an article stays stable regardless of continuing edits. This could lead to an automatic recommendation of good article tags but also add …

November 1, 2007, James Madison University

The Breeze, 2000-2009

The Breeze is the student newspaper of James Madison University in Harrisonburg, Virginia.

Uncertainty As The Source Of Knowledge Transfer Opportunity, Alex Dekhtyar, Jane Huffman Hayes, Judy Goldsmith

Computer Science and Software Engineering

Uncertainty creeps into the software development process in many ways, shapes and forms. In the early stages of software development, key sources of uncertainty are the human stakeholders who help formulate the requirements of the software product. An added layer of uncertainty is inherent as requirements analysts have to deal with subjective, and often conflicting, estimates that humans make, estimates that may significantly affect both the software development process and the eventual software product. Our position is two-fold. We stipulate that in situations where analysts (and later developers) have to deal with human evaluations of uncertainty, special methods and procedures …

Deformable Image Registration With Inclusion Of Auto-Detected Homologous Tissue Features, Y. Xie, Lei Xing, Dana C. Paquin, Doron Levy, T. Yang

Mathematics

No abstract provided.

Biofuel Feedstocks: The Risk Of Future Invasions, Joseph M. Ditomaso, Jacob N. Barney, Allison M. Fox

All U.S. Government Documents (Utah Regional Depository)

In an effort to decrease greenhouse gas emissions, expand domestic energy production, and maintain economic growth, public and private investments are being used to pursue dedicated feedstock crops for biofuel production. Unlike food crops grown for grain-based ethanol (e.g., corn), which require high inputs of fertilizers and pesticides and typically are grown on prime agricultural land, proposed lignocellulose-based energy crops (e.g., switchgrass) typically have a neutral or negative carbon budget, require relatively few economic or environmental inputs, and can be cultivated on marginal, lower-productivity land. Thus, a rapidly growing industry related to crop selection, cultivar improvement, and conversion technilogies is …

Planner, Volume 22, Number 6, November-December 2007, American Institute Of Certified Public Accountants (Aicpa)

Newsletters

No abstract provided.

Highly Degenerate Quadratic Forms Over F2, Robert W. Fitzgerald

Articles and Preprints

No abstract provided.

Island Times, Nov 2007, Mary Lou Wendell, David Tyler

Island Times Newspaper, 2007

No abstract provided.

Sphere Packing, Lattices, And Epstein Zeta Function, Lenny Fukshansky

CMC Faculty Publications and Research

The sphere packing problem in dimension N asks for an arrangement of non-overlapping spheres of equal radius which occupies the largest possible proportion of the corresponding Euclidean space. This problem has a long and fascinating history. In 1611 Johannes Kepler conjectured that the best possible packing in dimension 3 is obtained by a face centered cubic and hexagonal arrangements of spheres. A proof of this legendary conjecture has finally been published in 2005 by Thomas Hales. The analogous problem in dimension 2 has been solved by Laszlo Fejes Toth in 1940, and this really is the extent of our current …

Podcasting In Engineering Education: A Preliminary Study Of Content, Student Attitudes, And Impact , Edward Berger

Innovate: Journal of Online Education

No abstract provided.

Designing An Effective Web-Based Coding Environment For Novice Learners , Heejung An

Innovate: Journal of Online Education

No abstract provided.

Aquaculture Of Coral, Live Rocks And Associated Products. Draft Final 'Policy' Paper., Department Of Fisheries Western Australia

Fisheries Management Papers

Aquarium enthusiasts use corals, live rock and associated products (e.g. sand) to enhance the aesthetics or function of the marine aquaria they keep and enjoy. There is a large and growing market for these products.

The Department of Fisheries has prepared this draft ‘Final Policy Paper’ as the second phase in the development of a management framework for the aquaculture of coral and live rock. The document outlines the position and needs of the emerging industry and identifies the management arrangements and policies the Department of Fisheries is proposing to implement.

Encoding Ais Binary Messages In Xml Format For Providing Hydrographic-Related Information, Schwehr Kurt, Lee Alexander

Center for Coastal and Ocean Mapping

A specification is proposed to enable hydrographic and maritime safety agencies to encode AIS messages using Extensible Markup Language (XML). It specifies the order, length, and type of fields contained in ITU-R.M.1371-1. A XML schema validates the message definitions, and a XSLT style sheet produces reference documentation in 'html' format. AIS binary messages in XML are an effective means to communicate dynamic and real-time port/waterway information. For example, tidal information can be continuously broadcast to maritime users and applied to a "tide-aware" ENC. The XML format aligns with the type of data encapsulation planned for the IHO Geospatial Standard for …

Fish And Coral Reef Communities Of The Parque Nacional Sistema Arrecifal Veracruzano (Veracruz Coral Reef System National Park) Veracruz, Mexico: Preliminary Results, Marcos Alberto Rangel Avalos, Lance K. B. Jordan, Brian K. Walker, David S. Gilliam, Elvira Carvajal Hinojosa, Richard E. Spieler

Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures

Effective resource management requires robust baseline datasets and efficient monitoring programs to identify and quantify temporal change. The Parque Nacional Sistema Arrecifal Veracruzano (Veracruz Coral Reef System National Park) encompasses a total of 52000ha including 23 coral reefs in two island groups separated by the mouth of the Jamapa River; one near the port of Veracruz, Mexico and one approximately 20km south near Punta Antón Lizardo. Both groups receive substantial fisheries pressure and other anthropogenic impacts. Using non-destructive, visual methods we surveyed fish and benthic assemblages at 18 sites, which included 10 individual coral reefs within the Park. For fishes, …

Agn Reddening And Ultraviolet Extinction Curves From Hubble Space Telescope Spectra, C. Martin Gaskell, A. J. Benkler

C. Martin Gaskell Publications

We present intrinsic extinction curves for 14 AGNs. The AGNs have reddenings, E(B-V), of up to 0.36 mag. The majority (13 out of 14) of the extinction curves are not steep in the UV. Of the seven best determined extinction curves, five have extinction curves that are as flat as the standard Galactic curve in the optical and near UV, but flatter in the far UV, and without the λ2175 feature. One AGN, B3 0754+394, has a steep SMC-like extinction curve, and another, Mrk 304, has an LMC-like extinction curve, including a probable λ2175 bump. The remaining seven, lower-quality, extinction …

Ngc 5548: The Agn Energy Budget Problem And The Geometry Of The Broad-Line Region And Torus, C. Martin Gaskell, Elizabeth S. Klimek, Ludmila S. Nazarova

C. Martin Gaskell Publications

We consider in detail the spectral energy distribution (SED) and multi-wavelength variability of NGC 5548. Comparison with the SEDs of other AGNs implies that the internal reddening of NGC 5548 is E(B-V) = 0.17 mag. The extinction curve is consistent with the mean curve of other AGNs found by Gaskell & Benker, but inconsistent with an SMC-type reddening curve. Because most IR emission originates exterior to the broad-line region (BLR), the SED seen by the inner BLR is different from that seen by the outer BLR and from the earth. The most likely BLR covering factor is ~ 40% and …

Transformations Between 2mass, Sdss And Bvri Photometric Systems: Bridging The Near Infrared And Optical, S. Bilir, S. Ak, S. Karaali, A. Cabrera-Lavers, T. S. Chonis, C. Martin Gaskell

C. Martin Gaskell Publications

We present color transformations for the conversion of the 2MASS photometric system to the Johnson-Cousins UBV RI system and further into the SDSS ugriz system. We have taken SDSS gri magnitudes of stars measured with the 2.5-m telescope from SDSS Data Release 5 (DR5), and BV RI and JHK_s magnitudes from Stetson’s catalogue and Cutri et al. (2003), respectively. We matched thousands of stars in the three photometric systems by their coordinates and obtained a homogeneous sample of 825 stars by the following constraints, which are not used in previous transformations: 1) the data are de-reddened, 2) giants are …

The Correlation Coefficients, Rudy Gideon

Mathematical Sciences Faculty Publications

A generalized method of defining and interpreting correlation coefficients is given. Seven correlation coefficients are defined — three for continuous data and four on the ranks of the data. A quick calculation of the rank based correlation coefficients using a 0-1 graph-matrix is shown. Examples and comparisons are given.

Fisheries Research Report 167 - Digital Video Techniques For Assessing Population Size Structure And Habitat Of Greenlip And Roe's Abalone., A.M. Hart, Frank Fabris

Fisheries Research Reports

Final FRDC report- Project 2002/079

A digital video image (DVI) stock monitoring programme was developed for the Haliotis laevigata and H. roei abalone fisheries in Western Australia. The program used industry divers to collect stock density and length-frequency data using digital video from 51 survey sites across the fishery, while image extraction, data processing and storage is carried out by research staff. Training videos, DVDs, and a comprehensive suite of experimental tests on both abalone species were utilised to achieve this outcome. Comparisons between DVI data collected by industry divers, and fishery independent survey (FIS) data showed mean legal sized …

2007 Vol. 56 No. 2, Cleveland-Marshall College Of Law

2000s

No abstract provided.

Prism #24, September 2007, Office Of The Provost

Prism: Western Michigan University's Newsletter for Academic Affairs

No abstract provided.

Design, Synthesis, And Evaluation Of 10-N-Substituted Acridones As Novel Chemosensitizers In Plasmodium Falciparum, Jane X. Kelly, Martin J. Smilkstein, Roland A. Cooper, Kristin D. Lane, Robert A. Johnson, Aaron Janowsky, Rozalia A. Dodean, Rolf Winter, Michael Riscoe

Collected Faculty Scholarship

A series of novel 10-N-substituted acridones, bearing alkyl side chains with tertiary amine groups at the terminal position, were designed, synthesized, and evaluated for the ability to enhance the potency of quinoline drugs against multidrug-resistant (MDR) Plasmodium falciparum malaria parasites. A number of acridone derivatives, with side chains bridged three or more carbon atoms apart between the ring nitrogen and terminal nitrogen, demonstrated chloroquine (CQ)-chemosensitizing activity against the MDR strain of P. falciparum (Dd2). Isobologram analysis revealed that selected candidates demonstrated significant synergy with CQ in the CQ-resistant (CQR) parasite Dd2 but only additive (or indifferent) interaction in the CQ-sensitive …

Reversal Of Spin Polarization In Fe/Gaas (001) Driven By Resonant Surface States: First-Principles Calculations, Athanasios N. Chantis, Kirill D. Belashchenko, D. L. Smith, Evgeny Y. Tsymbal, Mark Van Schilfgaarde, R. C. Albers

Evgeny Tsymbal Publications

A minority-spin resonant state at the Fe/GaAs(001) interface is predicted to reverse the spin polarization with the voltage bias of electrons transmitted across this interface. Using a Green's function approach within the local spin-density approximation, we calculate the spin-dependent current in a Fe/GaAs/Cu tunnel junction as a function of the applied bias voltage. We find a change in sign of the spin polarization of tunneling electrons with bias voltage due to the interface minority-spin resonance. This result explains recent experimental data on spin injection in Fe/GaAs contacts and on tunneling magnetoresistance in Fe/GaAs/Fe magnetic tunnel junctions.

Perinatal Ph And Neuropsychological Outcomes At Age 3 Years In Children Born Preterm: An Exploratory Study, Kimberly A. Espy, Theresa E. Senn, David A. Charak, Jill Tyler, Sandra A. Wiebe

Developmental Cognitive Neuroscience Laboratory: Faculty Publications

The impact of extreme prematurity and related hypoxic-ischemic events on brain development recently has begun to be characterized with modern neuroimaging methods, although comparatively less is known about the neuropathology in those born at heavier birth weights. Even subclinical levels of perinatal hypoxia-ischemia, as indexed by perinatal blood pH, are related to intelligence in school-aged children born preterm. Given the impact of hypoxia-ischemia on white matter and the emerging evidence of specific executive and mathematic deficits in children born preterm, the impact of perinatal hypoxia-ischemia on these outcomes was explored in children at relatively low-risk for sequelae. In a sample …

Catalog | 2007-2009 (November), Jacksonville State University

Announcements, Bulletins & Catalogs | Undergraduate

Vol. 97, No. 2 (November 2007). In its early years as the State Normal School, JSU produced a variety of publications (announcements, bulletins, and catalogs) that contain course information combined with the types of information that would later be found in yearbooks. Examples include historical information about the school, lists of enrolled students and club officers, photographs of athletic teams and literary clubs, notes on alumni, faculty and campus facilities, and more.

Thermal Effects Of Phase Transformations: A Review, Alexander Umantsev

Chemistry and Physics Faculty Working Papers

All the stages of phase transformations in materials, nucleation, growth, and coarsening, are subject to thermal effects that stem from the redistribution of energy in the system, like release of latent heat, and heat conduction. The thermal effects change the rate and outcome of the transformation and may result in the appearance of unusual states or phases, in particular in nanosystems. This review will cover the attempts of researchers to build a comprehensive theory of thermal effects in different phase transformations. Although the dynamical Ginzburg–Landau (continuum) approach will be used for the analysis of the effects, they are robust and …

Journal Of Combinatorial Optimization, Special Issue On Communication Networks And Internet Applications, Maggie Xiaoyan Cheng

Computer Science Faculty Research & Creative Works

No abstract provided.

Discovery Of Polarization Reverberation In Ngc 4151, C. Martin Gaskell, René W. Goosmann, Nelly I. Merkulova, Nikolay M. Shakhovskoy, Masatoshi Shoji

C. Martin Gaskell Publications

Observations of the optical polarization of NGC 4151 in 1997–2003 show variations of an order of magnitude in the polarized flux while the polarization position angle remains constant. The amplitude of variability of the polarized flux is comparable to the amplitude of variability of the total U-band flux, except that the polarized flux follows the total flux with a lag of 8±3 days. The time lag and the constancy of the position angle strongly favor a scattering origin for the variable polarization rather than a non-thermal synchrotron origin. The orientation of the position angle of the polarized flux (parallel to …