Physical Sciences and Mathematics Commons^™

Relationship Of Reef Fish Assemblages And Topographic Complexity On Southeastern Florida Coral Reef Habitats, Brian K. Walker, Lance K. B. Jordan, Richard E. Spieler

Marine & Environmental Sciences Faculty Articles

Reef fish assemblage relationships with in situ and lidar topographic measurements across the seascape were analyzed to evaluate the possibility of using lidar metrics as a proxy for prediction models. In situ topographic complexity (i.e., linear rugosity) was measured from 346 point-count fish surveys spanning the reef seascape. Lidar topographic measurements (i.e., surface rugosity, elevation, and volume) were obtained from a high-resolution lidar bathymetric dataset of each survey's footprint. The survey sites were characterized by an independently derived benthic habitat map. Reef fish abundance and species richness appeared to increase with increasing topographic complexity. Although significant, the relationship was weak. …

Interpretation Of Single-Beam Acoustic Backscatter Using Lidar-Derived Topographic Complexity And Benthic Habitat Classifications In A Coral Reef Environment, Greg Foster, Brian K. Walker, Bernhard Riegl

Marine & Environmental Sciences Faculty Articles

Producing thematic coral reef benthic habitat maps from single-beam acoustic backscatter has been hindered by uncertainties in interpreting the acoustic energy parameters E1 (tail of 1st echo) and E2 (complete 2nd echo), typically limiting such maps to sediment classification schemes. In this study, acoustic interpretation was guided by high-resolution lidar (LIght Detection And Ranging) bathymetry. Each acoustic record, acquired from a BioSonics DT-X echosounder and multiplexed 38 and 418 kHz transducers, was paired with a spatially-coincident value of a lidar-derived proxy for topographic complexity, reef-volume (RV), and its membership to one of eight benthic habitat classes, delineated from lidar imagery, …

The Emerging Role Of Lidar Remote Sensing In Coastal Research And Resource Management Full Access, John C. Brock, Samuel J. Purkis

Marine & Environmental Sciences Faculty Articles

Knowledge of coastal elevation is an essential requirement for resource management and scientific research. Recognizing the vast potential of lidar remote sensing in coastal studies, this Special Issue includes a collection of articles intended to represent the state-of-the-art for lidar investigations of nearshore submerged and emergent ecosystems, coastal morphodynamics, and hazards due to sea-level rise and severe storms. Some current applications for lidar remote sensing described in this Special Issue include bluegreen wavelength lidar used for submarine coastal benthic environments such as coral reef ecosystems, airborne lidar used for shoreline mapping and coastal change detection, and temporal waveform-resolving lidar used …

Venn, A Tool For Titrating Sequence Conservation Onto Protein Structures, Jay Vyas, Michael R. Gryk, Martin R. Schiller

Life Sciences Faculty Research

Residue conservation is an important, established method for inferring protein function, modularity and specificity. It is important to recognize that it is the 3D spatial orientation of residues that drives sequence conservation. Considering this, we have built a new computational tool, VENN that allows researchers to interactively and graphically titrate sequence homology onto surface representations of protein structures. Our proposed titration strategies reveal critical details that are not readily identified using other existing tools. Analyses of a bZIP transcription factor and receptor recognition of Fibroblast Growth Factor using VENN revealed key specificity determinants. Weblink: http://sbtools.uchc.edu/venn/.

The Em Algorithm For Group Testing Regression Models Under Matrix Pooling, Christopher R. Bilder, Boan Zhang

Department of Statistics: Faculty Publications

No abstract provided.

Two-Loop Soft Anomalous Dimensions With Massive And Massless Quarks, Nikolaos Kidonakis

Faculty Articles

I present results for two-loop soft anomalous dimensions, which are derived from dimensionally regularized diagrams with eikonal quark lines and control soft-gluon emission in hard-scattering processes. Detailed results for the UV poles of the eikonal integrals are shown for massive quarks, and the massless limit is also taken. The construction of soft anomalous dimensions at two-loops allows soft-gluon resummations at NNLL accuracy.

Digital Logic Based Encoding Strategies For Steganography On Voice-Over-Ip, Hui Tian, Ke Zhou, Hong Jiang, Dan Feng

CSE Conference and Workshop Papers

This paper presents three encoding strategies based on digital logic for steganography on Voice over IP (VoIP), which aim to enhance the embedding transparency. Differing from previous approaches, our strategies reduce the embedding distortion by improving the similarity between the cover and the covert message using digital logical transformations, instead of reducing the amount of the substitution bits. Therefore, by contrast, our strategies will improve the embedding transparency without sacrificing the embedding capacity. Of these three strategies, the first one adopts logical operations, the second one employs circular shifting operations, and the third one combines the operations of the first …

An Expeditious Synthesis Of 3-Amino B-Lactams Derived From Polyaromatic Compounds, Gildardo Rivera, Debasish Bandyopadhyay, Sonam Jaggi, R. Christopher Gonzales, Bimal K. Banik

Chemistry Faculty Publications and Presentations

A simple an effective method for the synthesis of a few trans 3-amino B-lactams derived from polyaromatic compounds has been accomplished via the deprotection of phthalimido groups with ethylene diamine.

Investigating The Technical Feasibility Of Utilizing Aquifer Storage And Recovery To Supplement The Public Water Supplies In Evans Head And Ballina, Brandon Cohen

Independent Study Project (ISP) Collection

At a time when the future of fresh water resources in Australia becomes more unpredictable as a result of global climate change, it will become necessary to look for new alternative sources of fresh water. Reclaimed wastewater is an important fresh water resource that will become increasingly important. One strategy to augment the public water supply is to inject and store reclaimed water underground, then to pump it out of the aquifer and treated to drinking water standards. This is known as Aquifer Storage and Recovery (ASR) and similar schemes have been established in the United States, United Kingdom, Canada, …

Structural Development In Ge-Rich Ge-S Glasses, Y. Sakaguchi, Dmitri Tenne, Maria Mitkova

Physics Faculty Publications and Presentations

The Raman spectra of Ge-S glasses in the Ge-rich region from Ge 33 to 46 % have been investigated in order to know the structural development of the network glasses. From the detailed curve fits, we have found that there is an unassigned peak at 410 cm^-1 and it becomes larger with increasing Ge composition. To clarify the structural origin of the peak, we virtually constructed the atomic arrangement of the glassy state starting from the crystalline state through the liquid state and changed the composition gradually depleting the medium in sulfur. From the consideration of the structural modeling …

Isomeric Effects With Di-Iodobenzene (C6H4I2) On Adsorption On Graphite, Keisuke Fukutani, Ning Wu, Peter A. Dowben

Peter Dowben Publications

Differences are seen in the adsorption of 1,2-di-iodobenzene, 1,3-di-iodobenzene, and 1,4-di-iodobenzene on graphite, as a function of exposure, using core level photoemission. The isomer 1,3-di-iodobenzene exhibits significant differences from 1,2-di-iodobenzene, and 1,4-di-iodobenzene in apparent sticking coefficients and core level binding energies. 1,3-Di-iodobenzene adsorb on graphite at 110 K in a strongly Stranski–Krastanov or Volmer–Weber (island) growth mode. The implication is that, even for small molecules adsorption, the adsorbate dipole in the plane of surface and the choice of isomer may matter.

Compromising Anonymous Communication Systems Using Blind Source Separation, Ye Zhu, Riccardo Bettati

Electrical and Computer Engineering Faculty Publications

We propose a class of anonymity attacks to both wired and wireless anonymity networks. These attacks are based on the blind source separation algorithms widely used to recover individual signals from mixtures of signals in statistical signal processing. Since the philosophy behind the design of current anonymity networks is to mix traffic or to hide in crowds, the proposed anonymity attacks are very effective. The flow separation attack proposed for wired anonymity networks can separate the traffic in a mix network. Our experiments show that this attack is effective and scalable. By combining the flow separation method with frequency spectrum …

Policy Refinement For Traffic Management In Home Area Networks: Problem Statement, Annie Ibrahim Rana, Micheal O Foghlu

9th. IT & T Conference

Traditional home area network (HAN) equipment is usually unmanaged and network traffic is served in best effort fashion. This type of unmanaged network sometimes causes quality-of-service issues in the HAN, for example loss of quality in streamed video or audio content. Traffic management rules using policies to prioritise certain types of traffic according to user requirements and to assign bandwidth limits to other traffic types. However very little work has been done yet addressing the specification of these requirements, how they would be communicated to the gateway device using policies, and how the policies would be refined into device level …

Atmospheric Soluble Dust Records From A Tibetan Ice Core: Possible Climate Proxies And Teleconnection With The Pacific Decadal Oscillation, B. Grigholm, Paul A. Mayewski, Kang Shichang, Y. Zang, S. Kaspari, Sharon B. Sneed, Q. Zhang

Climate Change Institute Faculty Scholarship

In autumn 2005, a joint expedition between the University of Maine and the Institute of Tibetan Plateau Research recovered three ice cores from Guoqu Glacier (33°34′37.8″N, 91°10′35.3″E, 5720 m above sea level) on the northern side of Mt. Geladaindong, central Tibetan Plateau. Isotopes (δ¹⁸O), major soluble ions (Na⁺, K⁺, Mg²⁺, Ca²⁺, Cl⁻, NO₃⁻, SO₄²⁻), and radionuclide (β-activity) measurements from one of the cores revealed a 70-year record (1935–2005). Statistical analysis of major ion time series suggests that atmospheric soluble …

Cross Sections Fall 2009, Department Of Physics And Astronomy

Cross Sections

No abstract provided.

Earth News, V33, Fall 2009, Department Of Earth Science, University Of Northern Iowa.

Earth News

Inside this issue:

--- News from the Department Head
--- News from Faculty and Staff
--- News from Emeritus Faculty and Staff
--- Sunday in the Quarry
--- Hillside Observatory Remodeled
--- The STORM Project Purchases New Equipment
--- UNI Team Participates in Project to Explore Earth's Interior
--- Geology for Teachers Short Course
--- EDMAP
--- Geology & Natural History of the Colorado River
--- Teachers Become Students to Study Air Quality
--- Astronomy for Teachers
--- National Science Foundation CCLI Grant
--- Earth Science Seminar Series
--- How I Spent My Summer
--- Scholarship and Award Recipients
--- …

On Similarity Classes Of Well-Rounded Sublattices Of Z², Lenny Fukshansky

CMC Faculty Publications and Research

A lattice is called well-rounded if its minimal vectors span the corresponding Euclidean space. In this paper we study the similarity classes of well-rounded sublattices of Z². We relate the set of all such similarity classes to a subset of primitive Pythagorean triples, and prove that it has the structure of a non-commutative infinitely generated monoid. We discuss the structure of a given similarity class, and define a zeta function corresponding to each similarity class. We relate it to Dedekind zeta of Z[i], and investigate the growth of some related Dirichlet series, which reflect on …

Proteomic And Phospho-Proteomic Profile Of Human Platelets In Basal, Resting State: Insights Into Integrin Signaling, Amir H. Qureshi, Vineet Chaoji, Dony Maiguel, Mohd Hafeez Faridi, Constantinos J. Barth, Saeed M. Salem, Mudita Singhal, Darren Stoub, Bryan Krastins, Mitsunori Ogihara, Mohammed J. Zaki, Vineet Gupta

Faculty Work Comprehensive List

During atherogenesis and vascular inflammation quiescent platelets are activated to increase the surface expression and ligand affinity of the integrin αIIbβ3 via inside-out signaling. Diverse signals such as thrombin, ADP and epinephrine transduce signals through their respective GPCRs to activate protein kinases that ultimately lead to the phosphorylation of the cytoplasmic tail of the integrin αIIbβ3 and augment its function. The signaling pathways that transmit signals from the GPCR to the cytosolic domain of the integrin are not well defined. In an effort to better understand these pathways, we employed a combination of proteomic profiling and computational analyses of isolated …

A Best Practice Model For Cloud Middleware Systems, Ajith Harshana Ranabahu, E. Michael Maximilien

Kno.e.sis Publications

Cloud computing is the latest trend in computing where the intention is to facilitate cheap, utility type computing resources in a service-oriented manner. However, the cloud landscape is still maturing and there are heterogeneities between the clouds, ranging from the application development paradigms to their service interfaces,and scaling approaches. These differences hinder the adoption of cloud by major enterprises. We believe that a cloud middleware can solve most of these issues to allow cross-cloud inter-operation. Our proposed system is Altocumulus, a cloud middleware that homogenizes the clouds. In order to provide the best use of the cloud resources and make …

Context And Domain Knowledge Enhanced Entity Spotting In Informal Text, Daniel Gruhl, Meena Nagarajan, Jan Pieper, Christine Robson, Amit P. Sheth

Kno.e.sis Publications

This paper explores the application of restricted relationship graphs (RDF) and statistical NLP techniques to improve named entity annotation in challenging Informal English domains. We validate our approach using on-line forums discussing popular music. Named entity annotation is particularly difficult in this domain because it is characterized by a large number of ambiguous entities, such as the Madonna album “Music” or Lilly Allen’s pop hit “Smile”.

We evaluate improvements in annotation accuracy that can be obtained by restricting the set of possible entities using real-world constraints. We find that constrained domain entity extraction raises the annotation accuracy significantly, making an …

Management Of Bayberry In Relation To Tree-Swallow Strikes At John F. Kennedy International Airport, New York, Glen E. Bernhardt, Zachary J. Paton, Lisa A. Kutschbach-Brohl, Richard A. Dolbeer

Human–Wildlife Interactions

Tree swallows (Tachycineta bicolor) have been a periodic bird-strike problem at John F. Kennedy International Airport (JFKIA), New York, New York, causing runway closures, flight delays, and damage to aircraft following the ingestion of bird flocks into engines. We examined 65 tree swallows collected at JFKIA in October 2001 to determine food sources that were attracting the birds to the airport. Digestive tracts of all 65 specimens contained northern bayberry fruits (Myrica pensylvanica), averaging 15.6 fruits per bird or 3.4% of the bird’s body mass in specimens where the entire tract was dissected. Bayberry fruits are …

Coexisting With Cougars: Public Perceptions, Attitudes, And Awareness Of Cougars On The Urban-Rural Fringe Of Calgary, Alberta, Canada, Clarisse Thornton, Michael S. Quinn

Human–Wildlife Interactions

Interactions between humans and cougars (Puma concolor) have been steadily increasing over the past 20 years largely due to human encroachment into cougar habitat and an increase in the human population. We determined the attitudes, knowledge, and perceptions toward cougars by residents in the urban-rural fringe of Calgary, Alberta, Canada, an area populated by both cougars and humans. We sent a survey to a stratified, random sample of 1,508 residents. Survey analysis included a potential for conflict index (PCI) to help provide quantitative direction for future cougar management. We analyzed and tested for differences among 7 variables: livestock …

Setting Research Priorities At Wildlife Services’ National Wildlife Research Center, Richard L. Bruggers

Human–Wildlife Interactions

As director of the Wildlife Services’ National Wildlife Research Center (NWRC), I frequently have been asked how the NWRC determines, prioritizes, and implements its research agenda. To answer this question, I will start by giving both a historical overview and an update of the NWRC. The mission of the NWRC is to provide science-based tools and information to resolve human–wildlife conflicts.

The Cost Of Fear, Michael R. Conover

Human–Wildlife Interactions

I hope that someday, we will be able to quantify the lost-opportunity costs associated with human–wildlife conflicts. Until that day, I hope that wildlife biologists and other people who help to make air travel safer have the satisfaction of knowing that what they do is important. They help people live better, safer, and more enjoyable lives. I cannot think of a higher calling than that. In tribute to them, I am pleased that this issue of Human–Wildlife Conflicts features several articles on the topic of bird–aircraft collisions. These include studies examining techniques that can reduce the danger of bird–aircraft collisions …

Safety Management Systems: How Useful Will The Faa National Wildlife Strike Database Be?, Richard A. Dolbeer, Sandra E. Wright

Human–Wildlife Interactions

The National Wildlife Strike Database for Civil Aviation in the United States became operational in 1995 with the initiation of data entry of all strike reports beginning in 1990. The database contained 82,057 reported strikes from 1990 to 2007. About 9,800 of these strike reports noted damage to the aircraft, of which 2,700 indicated the damage was substantial. The database has proven to be a useful source of objective information on the extent and nature of wildlife strikes for personnel at individual airports and for researchers and regulatory agencies at the national level. With the impending requirement for airports in …

Observations Of Neck-Collared Canada Geese Near John F. Kennedy International Airport, New York, Thomas W. Seamans, Scott E. Clemons, Allen L. Gosser

Human–Wildlife Interactions

Canada geese (Branta canadensis) often cause significant damage when they strike aircraft. They are responsible for a reported minimum of $2.6 million in damage per year to civil aviation in the United States. Knowledge of goose movements in relation to airports would allow wildlife managers to allocate time and funds to manage those populations that pose the greatest threat to aircraft. We placed alpha-numeric neck collars on 300 Canada geese within 8 km of both John F. Kennedy International Airport (JFKIA) and LaGuardia Airport in New York, New York. We conducted weekly observations for 2 years within a …

Birds And Aircraft—Fighting For Airspace In Ever More Crowded Skies, Richard A. Dolbeer

Human–Wildlife Interactions

This special issue of Human–Wildlife Conflicts (HWC) was conceived 1 year ago by Bird Strike Committee–USA (BSC–USA) and the Berryman Institute. Our premise was that the collision of aircraft with birds (bird strikes) and other wildlife is a growing problem about which the general public and most scientists and wildlife biologist know very little. Furthermore, although considerable work has been done to mitigate the risks caused by bird strikes, there have been few peer-reviewed publications of these research and management efforts. Thus, our 2 goals were to (1) educate the broad readership of HWC about the growing safety and economic …

Role Of Near-Miss Bird Strikes In Assessing Hazards, Matthew W. Klope, Robert C. Beason, Timothy J. Nohara, Michael J. Begier

Human–Wildlife Interactions

Management of problem wildlife within the airfield environment is a difficult job. Today’s Bird–Animal Aircraft Strike Hazard (BASH) program managers require as much information as possible to accomplish their tasks. Bird censuses and actual bird-strike events in and around the air operations area are used to make airfield management decisions and to assess the risk of bird hazards to aircraft. Both types of information are sampled rather sparsely. Avian radar is now being used as a new tool to provide continuous sampling of bird activity that significantly supplements visual censuses. The measure of risk used today is commonly expressed as …

Personal And Corporate Liability In The Aftermath Of Bird Strikes: A Costly Consideration, Larry A. Dale

Human–Wildlife Interactions

This paper details liability issues inherent in bird–aircraft collisions (bird-strike) incidents at airports and discusses how airport managers and operators must strive to conduct accurate assessments and develop and implement an effective wildlife management plan. Such efforts are mandated by Federal Aviation Administration (FAA) regulations, and failure to follow them may result in loss of human life and property, as well as large financial penalties for managers and operators and adverse media attention and public criticism for the airport authority.

Burrowing Owl And Other Migratory Bird Mitigation For A Runway Construction Project At Edwards Afb, Amber L. Hoen, Mark Hagan, Mark Bratton

Human–Wildlife Interactions

Edwards Air Force Base (AFB) scheduled the construction of a runway in the spring of 2007. The runway would be in an area that contained migratory birds and their habitat. The construction project would be near Edwards AFB main runway and had the potential not only to impact species protected under the Migratory Bird Treaty Act (MBTA), including the burrowing owl (Athene cunicularia), but also to increase bird and wildlife–aircraft strike hazards in the active flightline areas. To discourage nesting in the project area, reduce the potential for bird and wildlife–aircraft strikes, and maintain compliance with federal environmental …