Physical Sciences and Mathematics Commons^™

Beauty Photoproduction Using Decays Into Electrons At Hera, S. Chekanov, M. Derrick, S. Magill, B. Musgrave, D. Nicholass, J. Repond, R. Yoshida, Margarita C. K. Mattingly, P. Antonioli, G. Bari, L. Bellagamba, D. Boscherini, A. Bruni, G. Bruni, F. Cindolo, M. Corradi, G. Iacobucci, A. Margotti, R. Nania, A. Polini, S. Antonelli, M. Basile, M. Bindi, L. Cifarelli, A. Contin, S. De Pasquale, G. Sartorelli, A. Zichichi, D. Bartsch, I. Brock, H. Hartmann

Faculty Publications

Photoproduction of beauty quarks in events with two jets and an electron associated with one of the jets has been studied with the ZEUS detector at HERA using an integrated luminosity of 120pb-1. The fractions of events containing b quarks, and also of events containing c quarks, were extracted from a likelihood fit using variables sensitive to electron identification as well as to semileptonic decays. Total and differential cross sections for beauty and charm production were measured and compared with next-to-leading-order QCD calculations and MonteCarlo models. © 2008 The American Physical Society.

Record Linkage Based On Entities' Behavior, Mohamed Yakout, Ahmed K. Elmagarmid, Hazen Elmeleegy, Mourad Ouzzani

Department of Computer Science Technical Reports

No abstract provided.

Unavoidable Subgraphs Of Colored Graphs, Jonathan Cutler, Balázs Montágh

Department of Mathematics Faculty Scholarship and Creative Works

A natural generalization of graph Ramsey theory is the study of unavoidable sub-graphs in large colored graphs. In this paper, we find a minimal family of unavoidable graphs in two-edge-colored graphs. Namely, for a positive even integer k, let Sk be the family of two-edge-colored graphs on k vertices such that one of the colors forms either two disjoint Kk / 2's or simply one Kk / 2. Bollobás conjectured that for all k and ε{lunate} > 0, there exists an n (k, ε{lunate}) such that if n ≥ n (k, ε{lunate}) then every two-edge-coloring of Kn, in which the density …

Theoretical Top Quark Cross Section At The Fermilab Tevatron And The Cern Lhc, Nikolaos Kidonakis, Ramona Vogt

Faculty Articles

We present results for the top quark pair cross section at the Tevatron and the LHC. We use the resummed double differential cross section, employing the fully kinematics-dependent soft-anomalous-dimension matrices, to calculate the soft-gluon contributions at next-to-next-to-leading order (NNLO). We improve and update our previous estimates by refining our methods, including further subleading terms, and employing the most recent parton distribution function sets. The NNLO soft corrections significantly enhance the NLO cross section while considerably reducing the scale dependence. We provide a detailed discussion of all theoretical uncertainties in our calculation, including kinematics, scale, and parton distribution uncertainties, and clarify …

Analysis Of Chromium And Nickel In Soil And Plant Tissue Collected From The Experimental Vineyard At California Polytechnic State University, San Luis Obispo, Ca, Ian Leslie, Chip Appel, Craig Stubler, Kiana Amiri-Davani, Ashley Devalentine, Jose Gomez, Daniel Kim, Tommy Konwinski, Angie Quintana-Jones, Keith Patterson

Earth and Soil Sciences

Serpentinitic soils often contain high concentrations of heavy metals, including chromium (Cr) and nickel (Ni). Soils derived from serpentine parent material are used for agricultural purposes throughout San Luis Obispo County, CA. This study was undertaken to determine the amount of total and bioaccessible Cr and Ni in soil and vine tissue from a vineyard planted on soils derived from serpentine geology. Eighteen soil and plant samples were collected from different slope position and vine types (syrah and chardonnay). Soil samples were collected from about 0 to 30 cm at the base of the vines and 15 to 20 leaf …

An Investigation Of The Security Designs Of A Structured Query Language (Sql) Database And Its Middleware Application And Their Secure Implementation Within Thinclient Environments, Melissa D. Winner-Leoni

Regis University Student Publications (comprehensive collection)

The Information Portability and Accountability Act (HIPAA) and The SarbanesOxley (SOX) regulations greatly influenced the health care industry regarding the means of securing financial and private data within information and technology. With the introduction of thinclient technologies into medical information systems (IS), data security and regulation compliancy becomes more problematic due to the exposure to the World Wide Web (WWW) and malicious activity. This author explores the best practices of the medical industry and information technology industry for securing electronic data within the thinclient environment at the three levels of architecture: the SQL database, its middleware application, and Web interface. …

Contributions To Khovanov Homology, Stephan M. Wehrli

Mathematics - All Scholarship

Khovanov homology ist a new link invariant, discovered by M. Khovanov, and used by J. Rasmussen to give a combinatorial proof of the Milnor conjecture. In this thesis, we give examples of mutant links with different Khovanov homology. We prove that Khovanov's chain complex retracts to a subcomplex, whose generators are related to spanning trees of the Tait graph, and we exploit this result to investigate the structure of Khovanov homology for alternating knots. Further, we extend Rasmussen's invariant to links. Finally, we generalize Khovanov's categorifications of the colored Jones polynomial, and study conditions under which our categorifications are functorial …

Development And Annotation Of Perennial Triticeae Ests And Ssr Markers., B.S. Bushman, S R Larson, I W Mott, P F Cliften, R R Wang, N J Chatterton, A G Hernandez, S Ali, R W Kim, Jyothi Thimmapuram, G Gong, L Liu, M A Mikel

Cyber Center Publications

Triticeae contains hundreds of species of both annual and perennial types. Although substantial genomic tools are available for annual Triticeae cereals such as wheat and barley, the perennial Triticeae lack sufficient genomic resources for genetic mapping or diversity research. To increase the amount of sequence information available in the perennial Triticeae, three expressed sequence tag (EST) libraries were developed and annotated for Pseudoroegneria spicata, a mixture of both Elymus wawawaiensis and E. lanceolatus, and a Leymus cinereus x L. triticoides interspecific hybrid. The ESTs were combined into unigene sets of 8 780 unigenes for P. spicata, 11 281 unigenes for …

Take Pride In America In Southern Nevada: Quarterly Progress Report, Period Covering July 5, 2008 – October 5, 2008, Margaret N. Rees

Anti-littering Programs

• Take Pride in America in Southern Nevada wins national Take Pride in America Award for best state program and Senate recognition

• Zia Engineering begins work on Recycling Plan

• Name the Mascot contest drawing interest and support

• Dumping and litter prevention information for Northern Nevada added to web site

• Three events conducted this quarter

• Team reaches milestone of 60 events since inception

• Agreement with Spring Mountain Youth Camp finalized

Simple Inhibitors Of Histone Deacetylase Activity That Combine Features Of Short-Chain Fatty Acid And Hydroxamic Acid Inhibitors, Jessica L. Tischler, Basel Abuaita, Sierra C. Cuthpert, Christopher Fage, Kristi Murphy, Andrew Saxe, Edward B. Furr, Jamie Hedrick, Jennifer Meyers, David Snare, Ali R. Zand

Chemistry & Biochemistry Publications

Butyric acid and trichostatin A (TSA) are anti-cancer compounds that cause the upregulation of genes involved in differentiation and cell cycle regulation by inhibiting histone deacetylase (HDAC) activity. In this study we have synthesized and evaluated compounds that combine the bioavailability of short-chain fatty acids, like butyric acid, with the bidentate binding ability of TSA. A series of analogs were made to examine the effects of chain length, simple aromatic cap groups, and substituted hydroxamates on the compounds' ability to inhibit rat-liver HDAC using a fluorometric assay. In keeping with previous structure-activity relationships, the most effective inhibitors consisted of longer …

Preserving Privacy And Fairness In Peer Data Management Systems, Hazen Elmeleegy, Ahmed Abusalah, Mourad Ouzzani, Ahmed K. Elmagarmid

Department of Computer Science Technical Reports

No abstract provided.

The Dark Energy Problem, Michael Harney, Ioannis Haranas

Physics and Computer Science Faculty Publications

The proposal for dark energy based on Type Ia Supernovae redshift is examined. It is found that the linear and non-Linear portions in the Hubble Redshift are easily explained by the use of the Hubble Sphere model, where two interacting Hubble spheres sharing a common mass-energy density result in a decrease in energy as a function of distance from the object being viewed. Interpreting the non-linear portion of the redshift curve as a decrease in interacting volume between neighboring Hubble Spheres removes the need for a dark energy.

Evolution Of The Degree Of Polarization Of An Electromagnetic Gaussian Schell-Model Beam In A Gaussian Cavity, Min Yao, Yangjian Cai, Halil T. Eyyuboglu, Yahya Baykal, Olga Korotkova

Physics Articles and Papers

The interaction of an electromagnetic Gaussian Schell-model (EGSM) beam with a Gaussian cavity is analyzed. In particular, the evolution of the degree of polarization of the EGSM beam is investigated. The results show that the behavior of the degree of polarization depends on both the statistical properties of the source that generates the EGSM beam and the parameters of the cavity.

Student Fact Book, Fall 2008, Thirty-Second Annual Edition, Wright State University, Office Of Student Information Systems, Wright State University

Wright State University Student Fact Books

The student fact book has general demographic information on all students enrolled at Wright State University for Fall Quarter, 2008.

Creating Pathways To Develop Student Professionalism - A New Direction, Jennifer Mcintosh-Elkins, Rebecca Klein

Information Technology Faculty and Staff Publications

The 2007-2008 academic year brought a new program of student employment to our IT department called IT Fellows. This program brings together the technological skills of IT along with soft business skills to assist our student employees in becoming well-rounded individuals fully prepared for life after college. In previous years our primary area of student employment was the Help Desk in which there was a tiered system in place with opportunities for resume and interview experience, raises, and promotions. The area of training needed further development and the move to the new program provided enhanced opportunities for training at all …

Familiarity With Breeding Habitat Improves Daily Survival In Colonial Cliff Swallows, Charles R. Brown, Mary Bomberger Brown, Kathleen R. Brazeal

School of Natural Resources: Faculty Publications

One probable cost of dispersing to a new breeding habitat is unfamiliarity with local conditions such as the whereabouts of food or the habits of local predators, and consequently immigrants may have lower probabilities of survival than more experienced residents. Within a breeding season, estimated daily survival probabilities of cliff swallows, Petrochelidon pyrrhonota, at colonies in southwestern Nebraska, USA, were highest for birds that had always nested at the same site, followed by those for birds that had nested there in some (but not all) past years. Daily survival probabilities were lowest for birds that were naive immigrants to …

Numerical Simulation Of Thermo-Elasticity, Inelasticity And Rupture Inmembrane Theory, Michael Taylor

Mechanical Engineering

Two distinct two-dimensional theories for the modeling of thin elastic bodies are developed. These are demonstrated through numerical simulation of various types of membrane deformation. The work includes a continuum thermomechanics-based theory for wrinkled thin films. The theory takes into account single-layer sheets as well as composite membranes made of multiple lamina. The resulting model is applied to the study of entropic elastic elastomers as well as Mylar/aluminum composite films. The latter has direct application in the area of solar sails. Several equilibrium deformations are illustrated numerically by applying the theory of dynamic relaxation to a finite difference discretization based …

Coral Reef Restoration And Mitigation In Florida And Beyond, Jocelyn Karazsia, Tom Moore, James Byrne, David S. Gilliam, John Hunt

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

No abstract provided.

Undiscovered Karst Country: A New Paradigm For The Pecos Region Of Eastern New Mexico And West Texas As A Basin-Scale, Hypogene Speleogenetic Province [Abstract], Kevin W. Stafford, Lewis Land, Alexander Klimchouk

Faculty Presentations

No abstract provided.

Sfa Weather Station-October 2008, Arthur Temple College Of Forestry And Agriculture, Stephen F. Austin State University

Weather Station Data

No abstract provided.

Optimization Of Delay-Differential Inclusions Of Infinite Dimensions, Boris S. Mordukhovich, Dong Wang, Lianwen Wang

Mathematics Research Reports

No abstract provided.

Chemistry & Biochemistry Newsletter, Department Of Chemistry & Biochemistry, South Dakota State University

Chemistry & Biochemistry Newsletter: 2002-2015

Inside:

Page 2 PlainGreen Conference 2008; Dioszegi attends ACS Green Chemistry Summer School

Page 3 SDSU seeks CLS/Medical Tech accreditation; Pravecek named South Dakota’s ASCLS Member of the Year

Page 4 You awarded grant from Board of Regents; Recent Faculty Publications

Page 5 New Grad Students

Page 6 Native American traditional tea has health benefits; Natalie Garry is SDSU August Career Service Employee

Page 7 Henry A. Lardy Lecture; SDSU offers master’s degree in chemistry education; Grad students attend Green Chemistry and Engineering Conference

Page 8 New Shepard Hall Update

Untitled, Darren Poon

Architecture Master Theses

"My objective is to explore the potential of generative design processes driven by user-derived parameters established through computational protocols, algorithms, and simulations resulting in a process embodying ecologies of feedback and performances. Inherent in the designed process is the establishment of feedback, through each cycle of simulation, evaluation, and modification of the geometry.

This thesis project demonstrates a version of these processes specifically examining the performance driven building typology of the massive server farm. Specifically, its implicit correlations with fluid dynamic simulation and its biases toward an optimization of heat dissipation and plan layout. This project is situated between a …

Math/Compsci Newsletter, Fall 2008, Department Of Mathematics And Computer Science, Bridgewater State College

Department of Mathematics Newsletter

No abstract provided.

Phosphorylation Of P27kip1 Regulates Assembly And Activation Of Cyclin D1-Cdk4, Michelle D. Larrea, Jiyong Liang, Thiago G. Da Silva, Feng Hong, Shan H. Shao, Kathy Han, D. Dumont, Joyce M. Slingerland

Chemistry and Physics Faculty Articles

p27 mediates Cdk2 inhibition and is also found in cyclin D1-Cdk4 complexes. The present data support a role for p27 in the assembly of D-type cyclin-Cdk complexes and indicate that both cyclin D1-Cdk4-p27 assembly and kinase activation are regulated by p27 phosphorylation. Prior work showed that p27 can be phosphorylated by protein kinase B/Akt (PKB/Akt) at T157 and T198. Here we show that PKB activation and the appearance of p27pT157 and p27pT198 precede p27-cyclin D1-Cdk4 assembly in early G₁. PI3K/PKB inhibition rapidly reduced p27pT157 and p27pT198 and dissociated cellular p27-cyclin D1-Cdk4. Mutant p27 allele products lacking phosphorylation at …

Low-Fluence Electron Yields Of Highly Insulating Materials, Ryan Hoffman, John R. Dennison, Clint D. Thomson, Jennifer Albresten

All Physics Faculty Publications

Electron-induced electron yields of high-resistivity high-yield materials - ceramic polycrystalline aluminum oxide and polymer polyimide (Kapton HN) - were made by using a low-fluence pulsed incident electron beam and charge neutralization electron source to minimize charge accumulation. Large changes in the energy-dependent total yield curves and yield decay curves were observed, even for incident electron fluences of < 3 fC/mm². The evolution of the electron yield as charge accumulates in the material is modeled in terms of electron recapture based on an extended Chung-Everhart model of the electron emission spectrum. This model is used to explain the anomalies measured in highly …

Baselines Newsletter, No. 3, Fall 2008, University Of Colorado Boulder. Natural Resources Law Center

Baselines: The Natural Resources Law Center Newsletter (2007-2011)

No abstract provided.

Iowa Academy Of Science: The New Bulletin, V04n3, Autumn 2008, Iowa Academy Of Science

New Bulletin

Inside This Issue:

--Message from the Executive Director

--A Message from your President

--Comments from the IAS Leadership

--2008-2009 IAS Section Chairs

--One Donation To Help Two Great Causes

--Iowa Junior Academy of Science Celebrating 75 Years of Service

--You are invited to Wiki with IJAS

--Dr. Jay Labov to Speak at IAS Annual Meeting

--Recognizing Great Science

--2008 Iowa Academy of Science Speakers Series Visitor Center, Saylorville Reservoir

--Recognizing Great Science Teaching

Geogram 2008, David J. Keeling, Wku Department Of Geography And Geology

Earth, Environmental, and Atmospheric Sciences Publications

No abstract provided.

On The Importance Of The Interclump Medium For Superionization: O Vi Formation In The Wind Of Zeta Puppis, J. Zsargó, D. J. Hillier, J.-C. Bouret, T. Lanz, M. A. Leutenegger, David H. Cohen

Physics & Astronomy Faculty Works

We have studied superionization and X-ray line formation in the spectra of zeta Pup using our new stellar atmosphere code (XCMFGEN) that can be used to simultaneously analyze optical, UV, and X-ray observations. Here, we present results on the formation of the O VI lambda lambda 1032, 1038 doublet. Our simulations, supported by simple theoretical calculations, show that clumped wind models that assume void in the interclump space cannot reproduce the observed O vi profiles. However, enough O vi can be produced if the voids are filled by a low-density gas. The recombination of O vi is very efficient in …