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2004

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Full-Text Articles in Physical Sciences and Mathematics

Liberal Arts - Fall 2004, University Of Mississippi. College Of Liberal Arts Oct 2004

Liberal Arts - Fall 2004, University Of Mississippi. College Of Liberal Arts

Liberal Arts Newsletters

UM offers state's first degree in African American Studies


Temporal Variability Of Delta C-14, Delta C-13, And C/N In Sinking Particulate Organic Matter At A Deep Time Series Station In The Northeast Pacific Ocean, J Hwang, Erm Druffel, S Griffin, Kl Smith, Rj Baldwin, Je Bauer Oct 2004

Temporal Variability Of Delta C-14, Delta C-13, And C/N In Sinking Particulate Organic Matter At A Deep Time Series Station In The Northeast Pacific Ocean, J Hwang, Erm Druffel, S Griffin, Kl Smith, Rj Baldwin, Je Bauer

VIMS Articles

A 6-year time series of Delta(14) C, delta(13) C, and C/N measurements in deep sinking particulate organic matter ( POM) is presented for an abyssal site, Station M in the northeast Pacific Ocean. The Delta(14)C values revealed that sinking POM at 3450 m depth ( 650 m above bottom) contained old carbon despite its presumed short transit time in the water column. The isotopic and chemical properties of the sinking POM varied with time and appear to be controlled by more than one major process. In 1993, 1994, and late 1996, isotopic signatures and C/N molar ratios indicate negligible or …


Cross Sections Fall 2004, Department Of Physics And Astronomy Oct 2004

Cross Sections Fall 2004, Department Of Physics And Astronomy

Cross Sections

No abstract provided.


Earth News, V28, Fall 2004, Department Of Earth Science, University Of Northern Iowa. Oct 2004

Earth News, V28, Fall 2004, Department Of Earth Science, University Of Northern Iowa.

Earth News

Inside this issue:

--- Earth Science Staff Activities
--- Earth Science Majors
--- Student Internships
--- From Ocean to Ice: GSI 2004 Spring Field Trip Highlights
--- National Earth Science Week Quarry Open House
--- Sigma Gamma Epsilon - Gamma Sigma Chapter
--- Student Research Presentation
--- 2004-2005 Scholarship and Award Recipients
--- 2004 Earth Science Graduates
--- Earth Science Seminar Series
--- Gifts to the Department of Earth Science
--- Earth Science Alumni News


Asymptotic Accuracy Of Geoacoustic Inversions, Michele Zanolin, Ian Ingram, Aaron Thode, Nicholas C. Makris Oct 2004

Asymptotic Accuracy Of Geoacoustic Inversions, Michele Zanolin, Ian Ingram, Aaron Thode, Nicholas C. Makris

Publications

Criteria necessary to accurately estimate a set of unknown geoacoustic parameters from remote acoustic measurements are developed in order to aid the design of geoacoustic experiments. The approach is to have estimation error fall within a specified design threshold by adjusting controllable quantities such as experimental sample size or signal-to-noise ratio (SNR). This is done by computing conditions on sample size and SNR necessary for any estimate to have a variance that (1) asymptotically attains the Cramer–Rao lower bound (CRLB) and (2) has a CRLB that falls within the specified design error threshold. Applications to narrow band deterministic signals received …


Lorentz-Violating Electrostatics And Magnetostatics, Quentin G. Bailey, V. Alan Kostelecký Oct 2004

Lorentz-Violating Electrostatics And Magnetostatics, Quentin G. Bailey, V. Alan Kostelecký

Publications

Electromagnetostatics experiments show promise for improving existing sensitivities to parity-odd coefficients for Lorentz violation in the photon sector.


Annual Report To The Pastoral Lands Board Of Western Australia: 2003 / 2004 Financial Year, Rod Williams, Philip Thomas Oct 2004

Annual Report To The Pastoral Lands Board Of Western Australia: 2003 / 2004 Financial Year, Rod Williams, Philip Thomas

Natural resources published reports

The Department of Agriculture has prepared this Annual Report for the Pastoral Lands Board of Western Australia for the financial year 2003 – 2004. This is the second report incorporating this framework and provides expanded information on issues and trends for a number of indicators of importance to Western Australia’s rangelands.

The Department of Agriculture’s services to the Board are outlined and environmental indicators based on scientific analysis of range condition trend are presented at the regional and property scales. Seasonal conditions at the state level with more specific information at the regional level and information relating to the assistance …


Trust Establishment In Large Scale Grid Settings, Bo Zhu, Tieyan Li, Huafei Zhu, Mohan S . Kankanhalli, Feng Bao, Robert H. Deng Oct 2004

Trust Establishment In Large Scale Grid Settings, Bo Zhu, Tieyan Li, Huafei Zhu, Mohan S . Kankanhalli, Feng Bao, Robert H. Deng

Research Collection School Of Computing and Information Systems

Trust establishment is hard in grid architecture by the ad hoc nature. To set up trust in large scale of network is more difficult. In this paper, we propose an automatic key management (AKM) model and corresponding key construction schemes. The hierarchical structure is formed automatically and scale seamlessly in arbitrary network sized. Regions are configured differently according to various levels of risks faced. The novel model provides an integrated solution for self-organized trust establishment, upon which rich appliances are securely supported. It is automatic, flexible, and scalable. Furthermore, simulation results show that computation costs due to the variations are …


A (Not So) Complex Solution To A² + B² = Cⁿ, Arnold M. Adelberg, Arthur T. Benjamin, David I. Rudel '99 Oct 2004

A (Not So) Complex Solution To A² + B² = Cⁿ, Arnold M. Adelberg, Arthur T. Benjamin, David I. Rudel '99

All HMC Faculty Publications and Research

No abstract provided in this article.


Random Walks On The Torus With Several Generators, Timothy Prescott '02, Francis E. Su Oct 2004

Random Walks On The Torus With Several Generators, Timothy Prescott '02, Francis E. Su

All HMC Faculty Publications and Research

Given n vectors {i} ∈ [0, 1)d, consider a random walk on the d-dimensional torus d = ℝd/ℤd generated by these vectors by successive addition and subtraction. For certain sets of vectors, this walk converges to Haar (uniform) measure on the torus. We show that the discrepancy distance D(Q*k) between the kth step distribution of the walk and Haar measure is bounded below by D(Q*k) ≥ C1k−n/2, where C1 = C(n, d) is …


On The Polarization Of Closed Strings By Ramond-Ramond Fluxes, Vatche Sahakian Oct 2004

On The Polarization Of Closed Strings By Ramond-Ramond Fluxes, Vatche Sahakian

All HMC Faculty Publications and Research

In the Green-Schwarz formalism, the closed string worldsheet of the IIB theory couples to Ramond-Ramond (RR) fluxes through spinor bilinears. We study the effect of such fluxes by analyzing the supersymmetry transformation of the worldsheet in general backgrounds. We show that, in the presence RR fields, the closed string can get `polarized', as the spinors acquire non-zero vevs in directions correlating with the orientation of close-by D-branes. Reversing the argument, this may allow for worldsheet configurations—with non-trivial spinor structure—that source RR moments.


Semantic Web Technology In Support Of Bioinformatics For Glycan Expression, Amit P. Sheth, William S. York, Christopher Thomas, Meenakshi Nagarajan, John A. Miller, Krzysztof Kochut, Satya S. Sahoo, Xiaochuan Yi Oct 2004

Semantic Web Technology In Support Of Bioinformatics For Glycan Expression, Amit P. Sheth, William S. York, Christopher Thomas, Meenakshi Nagarajan, John A. Miller, Krzysztof Kochut, Satya S. Sahoo, Xiaochuan Yi

Kno.e.sis Publications

Due to the complexity of biological systems, interpretation of data obtained by a single experimental approach can often be interpreted only if viewed from a broader context, taking into account the information obtained by many diverse techniques. The vast amount of interpreted experimental data that is now available via the internet opens the possibility of collecting the relevant pieces of information that will enable scientists to form hypotheses based on the integration of this diverse information. However, the sheer volume of data that is available makes it very difficult to select the information necessary to make a coherent model of …


Improving Links Between Science And Coastal Management: Results Of A Survey To Assess U.S. State Coastal Management Science And Technology Needs, Jeff Benoit, Chantal Lefebvre, Dan Hellin, Regan Maund Oct 2004

Improving Links Between Science And Coastal Management: Results Of A Survey To Assess U.S. State Coastal Management Science And Technology Needs, Jeff Benoit, Chantal Lefebvre, Dan Hellin, Regan Maund

Urban Harbors Institute Publications

In Winter 2003/2004 the Coastal States Organization (CSO) sponsored a national survey of state coastal resource managers to better understand their science and technology needs. The web-based survey was sponsored by CSO with funding provided by the Cooperative Institute for Coastal and Estuarine Environmental Technology (CICEET) at the University of New Hampshire. This survey builds upon a previous survey conducted by CSO in 1999. CSO contracted with the Urban Harbors Institute (UHI) at UMass-Boston to prepare the survey questions and final report. The University of New Hampshire Survey Center was contracted to conduct the survey and analyze the results.

Two …


Ceg 220: Introduction To C Programming For Engineers I, Ronald F. Taylor Oct 2004

Ceg 220: Introduction To C Programming For Engineers I, Ronald F. Taylor

Computer Science & Engineering Syllabi

This course provides a general introduction to computers as a problem solving tool using the C programming language. Emphasis is on algorithms and techniques useful to engineers. Topics include data representation, debugging, and program verification. Some programming assignments may involve complex arithmetic and trigonometric exponential functions.


Ceg 255: Introduction To The Design Of Information Technology Systems, Eric Matson Oct 2004

Ceg 255: Introduction To The Design Of Information Technology Systems, Eric Matson

Computer Science & Engineering Syllabi

Information systems consist of modern elements such as database systems, networks, multiplatform distributed computing, web infrastructure and multimedia computing. In this course we will address these areas individually and also where they intersect to gain a basic understanding of how information technology can be used to solve real problems.


Ceg 429/629: Internet Security, Prabhaker Mateti Oct 2004

Ceg 429/629: Internet Security, Prabhaker Mateti

Computer Science & Engineering Syllabi

Introduction to security issues arising primarily from computer networks. Topics include node and service authentication, address spoofing, hijacking, SYN floods, smurfing, sniffing, routing tricks, and privacy of data en route. Buffer overruns and other exploitation of software development errors. Hardening of operating systems. Intrusion detection. Firewalls. Ethics.


Ceg 402/602: Introduction To Computer Communication, Bin Wang Oct 2004

Ceg 402/602: Introduction To Computer Communication, Bin Wang

Computer Science & Engineering Syllabi

This course provides an introduction to basic concepts of communication networks, different types of networks, protocols over different layers, and network applications through lectures, labs, homework, and reading on relevant materials.


Ceg 434/634: Concurrent Software Design, Thomas C. Hartrum Oct 2004

Ceg 434/634: Concurrent Software Design, Thomas C. Hartrum

Computer Science & Engineering Syllabi

This course provides an introduction to concurrent program design in the UNIX environment. Classical problems of synchronization, concurrency, and their solutions are examined through course projects and through readings on operating system design.


Ceg 498: Design Experience, John C. Gallagher Oct 2004

Ceg 498: Design Experience, John C. Gallagher

Computer Science & Engineering Syllabi

CEG 498 (Design Experience) is a summative computer engineering design project course that builds upon previous engineering, science, mathematics and communications course work. CEG 498 projects are a minim um of two quarters in length and must be completed in groups of at least three students. Projects are selected under the guidance of the course instructor and are tailored to both student interest and formal classroom preparation. Students are evaluated both on their individual contributions as recorded in a graded engineering journals and on the quality of their collective efforts as reflected in group generated products.


Cs 206: Data Sheet, Terri Bauer Oct 2004

Cs 206: Data Sheet, Terri Bauer

Computer Science & Engineering Syllabi

Data Sheet for section 02.


Cs 480/680: Comparative Languages, Michael T. Cox Oct 2004

Cs 480/680: Comparative Languages, Michael T. Cox

Computer Science & Engineering Syllabi

"Comparative Languages" is a graduate/undergraduate level introductory course in programming languages. We will cover several basic topics ranging from syntax (BNF) and semantics formalisms (attribute grammars), to data types, scope and extent, type checking, parameter passing methods, expression parsing and other fundamentals of programming languages and language development. The intent of the course is to provide a background in the concepts and constructs of languages, rather than simply providing just a survey of various computer languages. Nonetheless in this class, we will learn and program in three very different languages: Pascal (an imperative language), Java (an object-oriented language), and LISP …


Cs/Bio 471/671: Algorithms For Bioinformatics, Michael L. Raymer, Dan E. Krane Oct 2004

Cs/Bio 471/671: Algorithms For Bioinformatics, Michael L. Raymer, Dan E. Krane

Computer Science & Engineering Syllabi

Theory-oriented approach to the application of contemporary algorithms to bioinformatics. Graph theory, complexity theory, dynamic programming and optimization techniques are introduced in the context of application toward solving specific computational problems in molecular genetics.


Cs 410/610: Theoretical Foundations Of Computing, Thomas Sudkamp Oct 2004

Cs 410/610: Theoretical Foundations Of Computing, Thomas Sudkamp

Computer Science & Engineering Syllabi

This course is an introduction to one of the fundamental topics in the theory of computer science: computability theory. Computability theory is concerned with determining whether there is an algorithmic solution to a problem. The study of computability uses the Turing machine as the basic computational model. A Turing machine is a random access, read-write, finite state automaton. The Church-Turing thesis asserts that any problem that can be solved in any algorithmic manner can be solved by a Turing machine.


Cs 240: Introduction To Computer Science I, Mateen M. Rizki Oct 2004

Cs 240: Introduction To Computer Science I, Mateen M. Rizki

Computer Science & Engineering Syllabi

No abstract provided.


Cs 240: Introduction To Computer Science, Eric Matson Oct 2004

Cs 240: Introduction To Computer Science, Eric Matson

Computer Science & Engineering Syllabi

We will develop basic techniques to design, develop and implement programs using the C++ language.


Cs 208: Computer Programming For Business With Java, I, Robert Rea Oct 2004

Cs 208: Computer Programming For Business With Java, I, Robert Rea

Computer Science & Engineering Syllabi

CS 208 is the first of a two quarter sequence in programming for business students. It is required for Management Information Science majors. The courses are designed to help students achieve an intermediate-level of programming in Java. This course assumes students have never written a program before.


Cs 784: Programming Languages, Krishnaprasad Thirunarayan Oct 2004

Cs 784: Programming Languages, Krishnaprasad Thirunarayan

Computer Science & Engineering Syllabi

This course introduces concepts related to the specification and design of high-level programming languages. It discusses different programming paradigms, algebraic specification and implementation of data types, and develops interpreters for specifying operationally the various programming language features/constructs. It also introduces attribute grammar formalism and axiomatic semantics briefly. The programming assignments will be coded in Scheme.


Lsdis: Large Scale Distributed Information Systems Lab, Amit P. Sheth Oct 2004

Lsdis: Large Scale Distributed Information Systems Lab, Amit P. Sheth

Kno.e.sis Publications

The LSDIS (Large Scale Distributed Information Systems) lab was established in 1994 with the guidance and direction provided by Dr. Amit P. Sheth with the help of Dr. John A. Miller and Dr. Krzysztof J. Kochut. In 1998 this faculty group was further strengthened by the addition of Dr. Ismailcem B. Arpinar. LSDIS is the largest research group in Computer Science at UGA and one of the strongest in its area. During Fall 2004, it is funding 15 students (majority of them PhD), and has one research staff.

Over the years LSDIS has been actively involved in research projects in …


Randy's Return: A Case Study In Food Safety Regulation, Matthew Laposata Oct 2004

Randy's Return: A Case Study In Food Safety Regulation, Matthew Laposata

Faculty Articles

No abstract provided.


High-Resolution, Wide-Field Imaging Of The Galactic Center Region At 330 Mhz, Michael E. Nord, T. Joseph W. Lazio, Namir E. Kassim, Scott D. Hyman, Ted W. La Rosa, Crystal L. Brogan, Nebojsa Duric Oct 2004

High-Resolution, Wide-Field Imaging Of The Galactic Center Region At 330 Mhz, Michael E. Nord, T. Joseph W. Lazio, Namir E. Kassim, Scott D. Hyman, Ted W. La Rosa, Crystal L. Brogan, Nebojsa Duric

Faculty Articles

We present a wide-field, subarcminute-resolution VLA image of the Galactic center region at 330 MHz. With a resolution of ~7'' × 12'' and an rms noise of 1.6 mJy beam-1, this image represents a significant increase in resolution and sensitivity over the previously published VLA image at this frequency. The improved sensitivity has more than tripled the census of small-diameter sources in the region, has resulted in the detection of two new nonthermal filaments (NTFs), 18 NTF candidates, and 30 pulsar candidates, reveals previously known extended sources in greater detail, and has resulted in the first detection of …