Physical Sciences and Mathematics Commons^™

Coral Reef Ed-Ventures: An Environmental Education Program For School Children In San Pedro, Belize, H. Allen Curran, Susan Etheredge, Elizabeth Callaghan, Paulette M. Peckol

Geosciences: Faculty Publications

No abstract provided.

Location Management In Mobile Ad Hoc Wireless Networks Using Quorums And Clusters, Maggie Xiaoyan Cheng, David H.-C. Du, Ding-Zhu Du

Computer Science Faculty Research & Creative Works

Position-based reactive routing is a scalable solution for routing in mobile ad hoc networks. The route discovery algorithm in position-based routing can be efficiently implemented only if the source knows the current address of the destination. In this paper, a quorum-based location management scheme is proposed. Location servers are selected using the minimum dominating set (MDS) approach, and are further organized into quorums for location update and location query. when a mobile node moves, it updates its location servers in the update quorum; when a node requests the location information of another node, it will send a query message to …

Samats: Edge Highlighting And Intersection Rating Explained, Joe Hegarty, James Carswell

Conference papers

The creation of detailed 3D buildings models, and to a greater extent the creation of entire city models, has become an area of considerable research over the last couple of decades. The accurate modeling of buildings has LBS (Location Based Services) applications in entertainment, planning, tourism and e-commerce to name just a few. Many modeling systems created to date require manual correspondences to be made across the image set in order to determine the models 3D structure. This paper describes SAMATS, a Semi-Automated Modeling And Texturing System, which has the capability of producing geometrically accurate and photorealistic building models without …

Data Summary From The Tampa Bay Interagency Seagrass Monitoring Program Through Year 2004, Walt Avery, Roger Johansson

Reports

Results regarding seagrass species abundance, distribution, and zonation over time are presented for the 1997-2004 period in Hillsborough Bay (HB, Figures 16-27) and the 1998-2004 period for Old Tampa Bay (OTB, Figures 3-14), Middle Tampa Bay (MTB, Figures 29-41), Lower Tampa Bay, including Terra Ceia Bay (LTB, Figures 43-57), and Boca Ciega Bay (BCB, Figures 59-69). For each transect, results are presented in a graphic format illustrating annual species composition, abundance, and distribution. Seagrass abundance is presented as percent coverage within a square meter using the Braun Blanquet coverage class system.

Arge-Encoded N-Acetyl-L-Ornithine Deacetylase From Escherichia Coli Contains A Dinuclear Metalloactive Site, Wade C. Mcgregor, Sabina I. Swierczek, Brian Bennett, Richard C. Holz

Physics Faculty Research and Publications

The catalytic and structural properties of the argE-encoded N-acetyl-l-ornithine deacetylase (ArgE) from Escherichia coli were investigated. On the basis of kinetic and ITC (isothermal titration calorimetry) data, Zn(II) binds to ArgE with K_d values that differ by ∼20 times. Moreover, ArgE exhibits ∼90% of its full catalytic activity upon addition of one metal ion. Therefore, ArgE behaves similarly to the aminopeptidase from Aeromonas proteolytica (AAP) in that one metal ion is the catalytic metal ion while the second likely plays a structural role. The N-acetyl-l-ornithine (NAO) deacetylase activity of ArgE showed a linear temperature dependence from …

Survivable Traffic Grooming With Path Protection At The Connection Level In Wdm Mesh Networks, Wang Yao, Byrav Ramamurthy

School of Computing: Faculty Publications

Survivable traffic grooming (STG) is a promising approach to provide reliable and resource-efficient multigranularity connection services in wavelength-division-multiplexing (WDM) optical networks. In this paper, we study the STG problem in WDM mesh optical networks employing path protection at the connection level. Both dedicated-protection and shared-protection schemes are considered. Given network resources, the objective of the STG problem is to maximize network throughput. To enable survivability under various kinds of single failures, such as fiber cut and duct cut, we consider the general shared-risklink- group (SRLG) diverse routing constraints. We first resort to the integer-linear-programming (ILP) approach to obtain optimal solutions. …

High-Resolution Angular Measurement Using Surface-Plasmon-Resonance Via Phase Interrogation At Optimal Incident Wavelengths, Hai-Pang Chiang, Jing-Lun Lin, Railing Chang, Sheng-Yu Su, P.T. Leung

Physics Faculty Publications and Presentations

It is demonstrated that ultrahigh-resolution angular measurement can be achieved via surface-plasmon-resonance excitation in which the phase difference between p- and s-polarized reflected waves is monitored as a function of the incidence angle. Resolutions down to 1.9 x 10(-6) deg are obtained by performing the measurements at optimal incident wavelengths. This represents an order of magnitude improvement compared with previously reported values.

Calculations Of Light Field Distributions Within And Beyond Wavelength-Scale Apertures, Glen D. Gillen, Shekhar Guha

Physics

No abstract provided.

Simplification Of The Stratton-Chu Vector Diffraction Integrals And Application To Light Propagation Through Curved Surfaces, Shekhar Guha, Glen D. Gillen

Physics

The Stratton-Chu vector diffraction integrals are expressed in dimensionless forms and then numerically evaluated to describe light propagation originating from a plane and a curved surface without invoking paraxial approximation

Successful Cropping In The High Rainfall Zone Of Western Australia : Crop Research And Extension In The Zone, Narelle Hill, Heping Zhang Dr., Tim Trezise, John Young, Natahan Moyes, Laurence Carslake, Neil C. Turner Dr, Walter Anderson, Michael Poole

Bulletins 4000 -

This manual is a review of all the relevant and current information relating to cropping systems in the high rainfall cropping zone (HRZ) of Western Australia. It functions partly as the final report summarising research results and extension activities and discusses recommendations and potential outcomes of two 5-year GRDC-funded projects (DAW 673 and CSP 302), that aimed to increase the productivity of southern high rainfall cropping systems.

Fire Management In The Top End And The Kimberley, Katie Brownson

Independent Study Project (ISP) Collection

Wildfire is becoming an increasingly big problem in the Top End and Kimberley region. In the last fire season, a region the size of Victoria and Tasmania combined burned (Gardner, 2005). This tendency towards extremely intense and extensive Late dry season wildfires is having serious economic and environmental impacts. While all land use objectives depend on healthy county, many people with more economic interests in the land fail to understand the complex ecological effects of fire, and the implications of these effects on their land use goals. Aboriginal people, on the other hand, have a very good handle on the …

Coral Reef Tourism And Conservation In Bocas Del Toro: An Analysis Of Ecotourism And Its Tour Guide-Based Components, Rebecca Kayes

Independent Study Project (ISP) Collection

Tourism of the coral reefs in Bocas del Toro is an important economic activity but also potentially harmful to the environment, creating an ecologically and economically unsustainable situation and doubts that the region engages in “ecotourism.” Coral reef tourism was analyzed with a specific emphasis on tours, tour guides, tourist motivations, tourist education and conservation-related activities. Research methods included participant observation in the tourism world in Bocas, interviews with guides, tourists and community members, and a tourist survey. Though local popular opinion disagrees, data collected shows tourism in Bocas does not emphasize reefs or reef conservation, a potentially catastrophic situation …

The Effect Of The Hiv/Aids Epidemic On Africa's Truck Drivers, Christopher Kribs, Melanie Lee, Christine Roman, Shari Wiley, Carlos M. Hernandez-Suarez

Mathematics Faculty Publications

The AIDS epidemic is having a growing impact on the transport sector of the economy of sub-Saharan Africa, where long-distance truck drivers are at an increased risk of infection due to their frequent contacts with com- mercial sex workers. The spread of AIDS in the transport industry is especially signi¯cant to the economy, as truck drivers are largely responsible for trans- porting crops and supplies needed for daily subsistence. In this paper we analyze these e®ects via two models, one employing a switch and the other a Verhulst saturation function, to describe the rate at which new drivers are recruited …

Análisis Del Desarrollo Sustentable En La Industria Del Salmón En Chile, Theresa Mohin

Independent Study Project (ISP) Collection

The focus of this independent study project is sustainable development, in the context of the Chilean salmon industry. The project centers on the environmental impacts of the salmon business, from its introduction as a fledgling industry in the eighties, to its arrival as one of the most important exporting markets in the Chilean economy. The discussion focuses on the economic history of the salmon industry, its environmental consequences, and the role of the government in environmental regulation, to discover whether or not current environmental programs in place are in fact sustainable. I conclude that while the efforts of the Chilean …

Partition-Based Interpolation For Color Filter Array Demosaicking And Super-Resolution Reconstruction, Min Shao, Kenneth E. Barner, Russell C. Hardie

Electrical and Computer Engineering Faculty Publications

A class of partition-based interpolators that addresses a variety of image interpolation applications are proposed. The proposed interpolators first partition an image into a finite set of partitions that capture local image structures. Missing high resolution pixels are then obtained through linear operations on neighboring pixels that exploit the captured image structure. By exploiting the local image structure, the proposed algorithm produces excellent performance on both edge and uniform regions. The presented results demonstrate that partition-based interpolation yields results superior to traditional and advanced algorithms in the applications of color filter array (CFA) demosaicking and super-resolution reconstruction.

Wright State University College Of Engineering And Computer Science Bits And Pcs Newsletter, Volume 22, Number 2, October 2005, College Of Engineering And Computer Science, Wright State University

BITs and PCs Newsletter

A ten page newsletter created by the Wright State University College of Engineering and Computer Science that addresses the current affairs of the college.

Phylogenetic Analysis Of Large Sequence Data Sets, Hyrum Carroll, Mark J. Clement, Keith Crandall, Quinn O. Snell

Faculty Publications

Phylogenetic analysis is an integral part of biological research. As the number of sequenced genomes increases, available data sets are growing in number and size. Several algorithms have been proposed to handle these larger data sets. A family of algorithms known as disc covering methods (DCMs), have been selected by the NSF funded CIPRes project to boost the performance of existing phylogenetic algorithms. Recursive Iterative Disc Covering Method 3 (Rec-I-DCM3), recursively decomposes the guide tree into subtrees, executing a phylogenetic search on the subtree and merging the subtrees, for a set number of iterations. This paper presents a detailed analysis …

The Armstrong Chemical Bond, Armstrong Atlantic State University

Chemical Bond Newsletter (2004-2005)

No abstract provided.

Vertices Of Self-Similar Tiles, Da-Wen Deng, Sze-Man Ngai

Department of Mathematical Sciences Faculty Publications

The set V_n of n-vertices of a tile T in \R^d is the common intersection of T with at least n of its neighbors in a tiling determined by T. Motivated by the recent interest in the topological structure as well as the associated canonical number systems of self-similar tiles, we study the structure of V_n for general and strictly self-similar tiles. We show that if T is a general self-similar tile in \R² whose interior consists of finitely many components, then any tile in any self-similar tiling generated by T has a finite …

Iowa Academy Of Science: The New Bulletin, V01n3, Autumn 2005, Iowa Academy Of Science

New Bulletin

Inside This Issue:

--Message from the Executive Director

--A Memorial to Charles Drewes

--Buena Vista University

--ISTS Fall Conference

--Iowa Science Teacher’s Section Fall Conference

--Fall Conference Registration

--Return of the Iowa Science Teachers Journal

--IAS Honors New Fellows

Why Are So Many People Challenging Board Of Immigration Appeals Decisions In Federal Court? An Empirical Analysis Of The Recent Surge In Petitions For Review, John R.B. Palmer, Stephen W. Yale-Loehr, Elizabeth Cronin

Cornell Law Faculty Publications

No abstract provided.

Circulation, Vol. 12, No. 2, Center For Coastal Physical Oceanography, Old Dominion University, Marjorie Friedrichs

CCPO Circulation

Fall 2005 issue of CCPO Circulation featuring article "The Regional Ecosystem Modeling Testbed Project" by Dr. Marjorie Friedrichs

Relativistic Electron Correlation, Quantum Electrodynamics, And The Lifetime Of The 1s²2s²2p²PO3/2 Level In Boronlike Argon, Alain Lapierre, Ulrich D. Jentschura, Jose R. Crespo Lopez-Urrutia, Jean Pierre Braun, Gunter Brenner, Hjalmar Bruhns, Daniel A. Fischer, Antonio J. Gonzalez, Zoltan Harman, Walter Johnson, Christoph H. Keitel, Vladimir Sergeyevich Mironov, C. J. Osborne, Guenther Sikler, R. Soria Orts, Vladimir M. Shabaev, Hiroyuki Tawara, I. I. Tupitsyn, Joachim Hermann Ullrich, Andrey V. Volotka

Physics Faculty Research & Creative Works

The lifetime of the Ar¹³⁺ 1s²2s²2p²P^o_3/2 metastable level was determined at the Heidelberg Electron Beam Ion Trap to be 9.573(4)(5)ms(stat)(syst). The accuracy level of one per thousand makes this measurement sensitive to quantum electrodynamic effects like the electron anomalous magnetic moment (EAMM) and to relativistic electron-electron correlation effects like the frequency-dependent Breit interaction. Theoretical predictions, adjusted for the EAMM, cluster about a lifetime that is approximately 3σ shorter than our experimental result.

Precise Calculation Of Transition Frequencies Of Hydrogen And Deuterium Based On A Least-Squares Analysis, Ulrich D. Jentschura, Svetlana A. Kotochigova, Eric Olivier Le Bigot, Peter J. Mohr, Barry N. Taylor

Physics Faculty Research & Creative Works

We combine a limited number of accurately measured transition frequencies in hydrogen and deuterium, recent quantum electrodynamics (QED) calculations, and, as an essential additional ingredient, a generalized least-squares analysis, to obtain precise and optimal predictions for hydrogen and deuterium transition frequencies. Some of the predicted transition frequencies have relative uncertainties more than an order of magnitude smaller than that of the g factor of the electron, which was previously the most accurate prediction of QED.

Genetic And Spatial Structure Within A Swift Fox Population, Ann M. Kitchen, Eric M. Gese, Lisette P. Waits, Seija M. Karki, Edward R. Schauster

United States Department of Agriculture Wildlife Services: Staff Publications

1. We incorporated spatial data on swift foxes (Vulpes velox) with genetic analysis to assess the influence of relatedness between individuals on their social and spatial ecology. We recorded the space use patterns of 188 radio-collared swift foxes in southeastern Colorado from January 1997 to December 2000. One hundred and sixty-seven foxes were also genotyped at 11 microsatellite DNA loci and the degree of relatedness between individuals was estimated.

2. We described the genetic structure of the population by examining the relatedness of neighbors and the relationship between the spatial and genetic distance of all individuals. We found …

Santa Clara Magazine, Volume 47 Number 2, Fall 2005, Santa Clara University

Santa Clara Magazine

6 - THE DRIVE TO CREATE by Elizabeth Kelley Gillogly '93. Albert Hoagland, an adjunct professor at SCU for more than 20 years, helped to build the first disk drive. Now is he working to preserve the history of magnetic disk storage.

10 - UNFINISHED MESSAGE by Toshio Mori. We share an excerpt from a collection of short stories by Mori, whose work highlights the plight of Japanese immigrants in the U.S. during World War II. The book is a part of the California Legacy Series, a partnership between SCU and Heyday Books.

14 - THE FAMILIAR STRANGER By Cynthia …

Characterization Of Pfiesteria Ichthyocidal Activity, Andrew S. Gordon, Harold G. Marshall, Sandra E. Shumway, Kathryn J. Coyne, Alan J. Lewitus, Michael A. Mallin, Parke A. Rublee

Biological Sciences Faculty Publications

Letter to the Editor regarding article: Drgon, T., et al. 2005. Characterization of ichthyocidal activity of Pfiesteria piscicida: Dependence on the dinospore cell density. Appl. Environ. Microbiol. 71:519–529

Capacity Building In Ocean Bathymetry: The Nippon Foundation Gebco Training Programme At The University Of New Hampshire, Srinivas Karlipata, Dave Monahan, H M. Caceres, Taisei Morishita, Abubakar Mustapha, Walter Reynoso Peralta, Shereen Sharma, Clive Angwenyi

Center for Coastal and Ocean Mapping

A successful Capacity Building project in hydrography is underway at the University of New Hampshire. Organised by the General Bathymetric Chart of the Oceans and sponsored by the Nippon Foundation, the programme trains hydrographers and other marine scientists in bathymetric mapping. Participants are formally prepared to produce bathymetric maps when they return to their home countries through a combination of graduate level courses and workshops, practical field training, participation in deep ocean research cruises, working visits to other laboratories and institutions, focused lectures from visiting experts, and the preparation of a bathymetry map of their area from public domain data. …

Availability Modeling And Evaluation On High Performance Cluster Computing Systems, Hertong Song

Doctoral Dissertations

Cluster computing has been attracting more and more attention from both the industrial and the academic world for its enormous computing power, cost effective, and scalability. Beowulf type cluster, for example, is a typical High Performance Computing (HPC) cluster system. Availability, as a key attribute of the system, needs to be considered at the system design stage and monitored at mission time. Moreover, system monitoring is a must to help identify the defects and ensure the system's availability requirement.

In this study, novel solutions which provide availability modeling, model evaluation, and data analysis as a single framework have been investigated. …

Multijet Production In Neutral Current Deep Inelastic Scattering At Hera And Determination Of ΑS, S. Chekanov, M. Derrick, S. Magill, S. Miglioranzi, B. Musgrave, J. Repond, R. Yoshida, Margarita C. K. Mattingly, N. Pavel, A. G. Yagües Molina, P. Antonioli, G. Bari, M. Basile, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, G. Cara Romeo, L. Cifarelli, F. Cindolo, A. Contin, M. Corradi, S. De Pasquale, P. Giusti, G. Iacobucci, A. Margotti, A. Montanari, R. Nania, F. Palmonari, A. Pesci, A. Polini

Faculty Publications

Multijet production rates in neutral current deep inelastic scattering have been measured in the range of exchanged boson virtualities 10 < Q 2 < 5000 GeV2. The data were taken at the ep collider HERA with centre-of-mass energy √s = 318 GeV using the ZEUS detector and correspond to an integrated luminosity of 82.2pb-1. Jets were identified in the Breit frame using the kT cluster algorithm in the longitudinally invariant inclusive mode. Measurements of differential dijet and trijet cross sections are presented as functions of jet transverse energy (ET,Bjet), pseudorapidity (ηLABjet) and Q2 with ET,Bjet > 5 GeV and -1 < ηLABjet < 2.5. Next-to-leading-order QCD calculations describe the data well. The value of the strong coupling constant αs(MZ), determined from the ratio of the trijet to dijet cross sections, is αs(MZ) = 0.1179 ± 0.0013 (stat.)-0.0046-0.0028 (exp.) -0.0046+0.0064 (th.). © Springer-Verlag / Società Italiana di Fisica 2005.