Open Access. Powered by Scholars. Published by Universities.®

Physical Sciences and Mathematics Commons™

Open Access. Powered by Scholars. Published by Universities.®

2008

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 241 - 270 of 5871

Full-Text Articles in Physical Sciences and Mathematics

Limits Of Bifractional Brownian Noises, Makoto Maejima, Ciprian A Tudor Dec 2008

Limits Of Bifractional Brownian Noises, Makoto Maejima, Ciprian A Tudor

Communications on Stochastic Analysis

No abstract provided.


Errata: Existence And Uniqueness Of Solutions To The Backward Stochastic Lorenz System (Cosa, Vol. 1, No. 3 (2007) 473–483) [Mr2403863], P Sundar, Hong Yin Dec 2008

Errata: Existence And Uniqueness Of Solutions To The Backward Stochastic Lorenz System (Cosa, Vol. 1, No. 3 (2007) 473–483) [Mr2403863], P Sundar, Hong Yin

Communications on Stochastic Analysis

No abstract provided.


On Static And Dynamic Partitioning Behavior Of Large-Scale Networks, Zhongmei Yao, Derek Leonard, Xiaoming Wang, Dmitri Loguinov Dec 2008

On Static And Dynamic Partitioning Behavior Of Large-Scale Networks, Zhongmei Yao, Derek Leonard, Xiaoming Wang, Dmitri Loguinov

Computer Science Faculty Publications

In this paper, we analyze the problem of network disconnection in the context of large-scale P2P networks and understand how both static and dynamic patterns of node failure affect the resilience of such graphs. We start by applying classical results from random graph theory to show that a large variety of deterministic and random P2P graphs almost surely (i.e., with probability 1 − o(1)) remain connected under random failure if and only if they have no isolated nodes. This simple, yet powerful, result subsequently allows us to derive in closed-form the probability that a P2P network develops isolated nodes, and …


The Feasibility Of Implementing Farm To School Programs In Bloomington-Normal Public Schools, Margaret Kane, '09 Dec 2008

The Feasibility Of Implementing Farm To School Programs In Bloomington-Normal Public Schools, Margaret Kane, '09

Outstanding Senior Seminar Papers

Farm to School programs promote partnerships between local farmers and school districts in which farmers can provide fresh organic produce for school meals and education about sustainable agriculture. A focus on local and organic foods has a variety of benefits that affect the environmental, health, and community. This study explores opportunities for Farm to School programs in Bloomington-Normal public schools, and concludes that a this type of program would be feasible in Normal, although there are quite a few barriers to overcome before implementation would be possible.


Environmental Evaluation Of A Quaternary Wastewater Treatment Wetland, Olivia Demeo, '09 Dec 2008

Environmental Evaluation Of A Quaternary Wastewater Treatment Wetland, Olivia Demeo, '09

Outstanding Senior Seminar Papers

Constructed wetlands for wastewater treatment have become a sustainable alternative to environmentally harmful traditional wastewater treatment methods. This case study evaluated the Schroeder Wildlife Sanctuary, a wetland area constructed for removal of nutrients from wastewater. An environmental evaluation of the wetland was completed that addressed three parameters: the water quality of wetland effluent, the avian biodiversity within the sanctuary, and an assessment of community outreach and education initiatives. Water quality testing was conducted using rudimentary LaMotte and Hach testing kits. The data was contrary to the literature and showed no nutrient removal occurring. However, the results were inconclusive because the …


The Feasibility Of Incorporating Sustainable Materials In The Design Of Habitat For Humanity Homes, Meaghan Collins, '09 Dec 2008

The Feasibility Of Incorporating Sustainable Materials In The Design Of Habitat For Humanity Homes, Meaghan Collins, '09

Outstanding Senior Seminar Papers

The concept of sustainable design has been one of increasing interest with regards to both personal choices and desire to reduce human impacts on the environment. This paper looks at the concept of sustainable housing design and why it is important. Particularly, it focuses on sustainable housing designs and materials that the McLean County Chapter of Habitat for Humanity can incorporate into the construction of its homes. This paper investigates three types of sustainable construction materials, flooring, cabinetry, and paints that Habitat for Humanity could incorporate into its homes.


An Aztec 1.1 Mm Survey Of The Goods-N Field - I. Maps, Catalogue And Source Statistics, T. A. Perera, E. L. Chapin, J. E. Austermann, K. S. Scott, G. W. Wilson, M. Halpern, A. Pope, D. Scott, M. S. Yun, James D. Lowenthal, G. Morrison, I. Aretxaga, J. J. Bock, K. Coppin, M. Crowe, L. Frey, D. H. Hughes, Y. Kang, S. Kim, P. D. Mauskopf Dec 2008

An Aztec 1.1 Mm Survey Of The Goods-N Field - I. Maps, Catalogue And Source Statistics, T. A. Perera, E. L. Chapin, J. E. Austermann, K. S. Scott, G. W. Wilson, M. Halpern, A. Pope, D. Scott, M. S. Yun, James D. Lowenthal, G. Morrison, I. Aretxaga, J. J. Bock, K. Coppin, M. Crowe, L. Frey, D. H. Hughes, Y. Kang, S. Kim, P. D. Mauskopf

Astronomy: Faculty Publications

We have conducted a deep and uniform 1.1 mm survey of the Great Observatories Origins Deep Survey-North (GOODS-N) field with AzTEC on the James Clerk Maxwell Telescope. Here, we present the first results from this survey including maps, the source catalogue and 1.1 mm number counts. The results presented here were obtained from a 245 arcmin region with a near uniform coverage to a depth of 0.96-1.16 mJy beam . Our robust catalogue contains 28 source candidates detected with S/N ≥ 3.75, only ∼1- 2 of which are expected to be spurious detections. Of these source candidates, eight are also …


Forcing And Dynamics Of Seafloor-Water Column Exchange On A Broad Continental Shelf, William B. Savidge, Ann Gargett, Richard A. Jahnke, James R. Nelson, Dana K. Savidge, R Timothy Short, George Voulgaris Dec 2008

Forcing And Dynamics Of Seafloor-Water Column Exchange On A Broad Continental Shelf, William B. Savidge, Ann Gargett, Richard A. Jahnke, James R. Nelson, Dana K. Savidge, R Timothy Short, George Voulgaris

Faculty Publications

Relict sediments of elevated permeability characterize the majority of continental shelves globally (Emery, 1968). In these settings, interactions between benthic boundary layer (BBL) flows and seabed topography generate pressure fluctuations that drive advective and dispersive porewater transport, dramatically increasing the magnitude and variability of porewater solute and particulate exchange across the sediment-water interface (Huettel et al., 1996; Huettel and Rusch, 2000). On broad shallow shelves with a relatively large area-to-volume ratio, the seafloor’s role is magnified. Energetic events may reorganize bedforms across a significant fraction of the shelf, leading to altered exchange dynamics that may persist long after the organizing …


Cognitive Agents Integrating Rules And Reinforcement Learning For Context-Aware Decision Support, Teck-Hou Teng, Ah-Hwee Tan Dec 2008

Cognitive Agents Integrating Rules And Reinforcement Learning For Context-Aware Decision Support, Teck-Hou Teng, Ah-Hwee Tan

Research Collection School Of Computing and Information Systems

While context-awareness has been found to be effective for decision support in complex domains, most of such decision support systems are hard-coded, incurring significant development efforts. To ease the knowledge acquisition bottleneck, this paper presents a class of cognitive agents based on self-organizing neural model known as TD-FALCON that integrates rules and learning for supporting context-aware decision making. Besides the ability to incorporate a priori knowledge in the form of symbolic propositional rules, TD-FALCON performs reinforcement learning (RL), enabling knowledge refinement and expansion through the interaction with its environment. The efficacy of the developed Context-Aware Decision Support (CaDS) system is …


Comparison Of The Fuel Needed To Transport Plastic Recyclables Verses Aluminum Recyclables From Yellowstone National Park, Melissa Dejonge Dec 2008

Comparison Of The Fuel Needed To Transport Plastic Recyclables Verses Aluminum Recyclables From Yellowstone National Park, Melissa Dejonge

Department of Environmental Studies: Undergraduate Student Theses

Research has provided no definitive answers on whether PET plastic bottles or aluminum cans are a more environmentally sustainable choice as soda containers. This paper researches the fuel used in recycling each of these materials from Yellowstone National Park to processing locations. The data is used to determine which of these alternatives use less fuel in this process. It was found that plastics use more fuel when transported from Yellowstone National Park to the processing center. Aluminum uses less fuel per ton to transport from Yellowstone to the processing center. The conclusions from this research may have implications on which …


Space-Time Regression Modeling Of Tree Growth Using The Skew-T Distribution, Farouk S. Nathoo Dec 2008

Space-Time Regression Modeling Of Tree Growth Using The Skew-T Distribution, Farouk S. Nathoo

COBRA Preprint Series

In this article we present new statistical methodology for the analysis of repeated measures of spatially correlated growth data. Our motivating application, a ten year study of height growth in a plantation of even-aged white spruce, presents several challenges for statistical analysis. Here, the growth measurements arise from an asymmetric distribution, with heavy tails, and thus standard longitudinal regression models based on a Gaussian error structure are not appropriate. We seek more flexibility for modeling both skewness and fat tails, and achieve this within the class of skew-elliptical distributions. Within this framework, robust space-time regression models are formulated using random …


Robust Stability And Optimality Conditions For Parametric Infinite And Semi-Infinite Programs, M J. Cánovas, M A. Lopez, Boris S. Mordukhovich, J Parra Dec 2008

Robust Stability And Optimality Conditions For Parametric Infinite And Semi-Infinite Programs, M J. Cánovas, M A. Lopez, Boris S. Mordukhovich, J Parra

Mathematics Research Reports

This paper primarily concerns the study of parametric problems of infinite and semi-infinite programming, where functional constraints are given by systems of infinitely many linear inequalities indexed by an arbitrary set T, where decision variables run over Banach (infinite programming) or finite-dimensional (semi-infinite case) spaces, and where objectives are generally described by nonsmooth and nonconvex cost functions. The parameter space of admissible perturbations in such problems is formed by all bounded functions on T equipped with the standard supremum norm. Unless the index set T is finite, this space is intrinsically infinite-dimensional (nonreflexive and nonseparable) of the l(infinity)-type. By using …


Life History Observations And Determination Of Potential Host Fish Species For Chipola Slabshell, Elliptio Chipolaensis, Lisa Preister Dec 2008

Life History Observations And Determination Of Potential Host Fish Species For Chipola Slabshell, Elliptio Chipolaensis, Lisa Preister

Theses and Dissertations

North America is home to nearly 300 species of freshwater mussels with approximately 80% being found in the southeastern United States. The Federally threatened species, Elliptio chipolaensis (Chipola slabshell), is considered an endemic species to the Chipola River Basin in the Florida panhandle. E. chipolaensis glochidia are released from the female in conglutinates The potential fish host species for Elliptio chipolaensis are the bluegill and redbreast sunfish. Sixty percent of the bluegill successfully transformed E. chipolaensis glochidia into juvenile mussels while 80% of the redbreast sunfish were successful.


Characterization Of Campus Parking Lot Stormwater And Remediation Of Risks Using Constructed Wetland Treatment Systems, Andrew Mcqueen Dec 2008

Characterization Of Campus Parking Lot Stormwater And Remediation Of Risks Using Constructed Wetland Treatment Systems, Andrew Mcqueen

All Theses

Campus parking lot stormwater (CPLSW) runoff mobilizes a variety of constituents from vehicular and atmospheric deposition that may pose risks to receiving aquatic systems. The overall objective of this research was to provide an approach for risk characterization, toxicity identification, and remediation of constituents of concern in CPLSW. The specific objectives of this research were to: (1) Characterize campus parking lot stormwater (CPLSW) to discern the constituents of concern present in these waters; (2) Perform TIE manipulations to identify possible fractions of concern in CPLSW, and; (3) Evaluate the performance of a pilot-scale constructed wetland treatment system (CWTS) designed to …


Solarization Effects On Chemical Properties Of Soils Under Kudu (Pueraria Montana) Invasion, Nicole Gilbert Dec 2008

Solarization Effects On Chemical Properties Of Soils Under Kudu (Pueraria Montana) Invasion, Nicole Gilbert

All Theses

Solarization is an effective method for managing small areas with kudzu (Pueraria montana) invasions that may alter soil chemical properties. Conducted from 2005 to 2007 at the Clemson University Experimental Forest in Clemson, South Carolina on a Cecil clay loam (fine, kaolinitic, thermic Typic Kanhapludult), this study compares soil chemical properties under thermally-treated and non-treated plots at different depths invaded by Kudzu.
The experimental factors of treatment and depth were arranged in a factorial treatment design with 15 treatments arranged in a split plot design. The five thermal treatments were the whole plot factors which were arranged in a randomized …


Physics Of Type Ia Supernovae, Ginger Bryngelson Dec 2008

Physics Of Type Ia Supernovae, Ginger Bryngelson

All Theses

Type Ia supernovae (SNe Ia), the thermonuclear explosion of a white dwarf, were once considered standard candles. However, increased observations reveal inhomogeneities in chemical composition and luminosity behavior, roughly dividing SNe Ia into three luminosity classes; super-luminous, sub-luminous, and normally-luminous. After introducing the problem in the context of previous observations and modeling, this thesis explores the physical processes occurring in a SN Ia after explosion, and discusses observations of SN light curves.
A simple model of the expanding ejecta calculates the energy deposition from the decay of radioactive Ni56 as well as photon diffusion. It produces light curves that match …


Probing Grb Environments Through X-Ray Absorption, Hala Eid Dec 2008

Probing Grb Environments Through X-Ray Absorption, Hala Eid

All Theses

Although long-duration GRBs (LGRBs) are highly transient in nature, their early afterglow can in principle be detected to very high redshifts (Lamb & Reichart, 2000). This makes them potent probes of the chemical evolution and content of the high-redshift universe. In this work, we use photoelectric absorption observed in the XRT spectra of LGRBs to investigate the evolution of metallicities and hydrogen column densities of LGRB host galaxies. Using a high-quality sample of LGRBs indicates the presence of a weak anti-correlation between the abundances and redshift. We also find an evolution trend in intrinsic column density. To confirm these correlations, …


Preparation Of Carboxylic Acid Functionalized Glycopolymers Through Raft And Post-Polymerization Modification For Biomedical Application, Husnu Alp Alidedeoglu Dec 2008

Preparation Of Carboxylic Acid Functionalized Glycopolymers Through Raft And Post-Polymerization Modification For Biomedical Application, Husnu Alp Alidedeoglu

Dissertations

The primary theme of this dissertation involves the synthesis of well-defined primary amine functionalized polymers, subsequent modification of the polymers to produce novel carboxylic acid functionalized glycopolymers and surface polymerization of these systems utilizing controlled polymerization techniques. Additionally, the synthesis of new water-based allylic copolymer latexes is described. Carbohydrates are natural polymers which possess unlimited structural variations. They carry a huge density of information, and play major roles in recognition events and complex biological operations. For example, hyaluronic acid (HA), an anionic glycosaminoglycan, provides lubricating and cushioning properties in the extracellular matrix and has been found to be involved in …


"G" And "H" Control Charts And Risk Analysis In The Banking Industry, James L. Bossert Dec 2008

"G" And "H" Control Charts And Risk Analysis In The Banking Industry, James L. Bossert

All-Inclusive List of Electronic Theses and Dissertations

This research investigates the utilization of a new control chart in the Banking industry to minimize financial risk. There are processes in the banking industry that do not lend themselves to traditional control chart applications. These processes tend to be high volume. High volume meaning over a million transactions a day and a requirement for high levels of accuracy characterize these processes. The research has looked at these processes and applied the "g" control charts to determine if they provide timely feedback to the banking industry. The value of this research will give the banking industry an opportunity to react …


Notes From The Director, The Mcnair Team Dec 2008

Notes From The Director, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.


Computing For The Masses: Extending The Computer Science Curriculum With Information Technology Literacy, Jorge Pérez, Meg C. Murray Dec 2008

Computing For The Masses: Extending The Computer Science Curriculum With Information Technology Literacy, Jorge Pérez, Meg C. Murray

Faculty Articles

Enrollments in computer science programs continue to drop as demand for workers skilled in computing increases. Information technology scholars face the ironic challenge of attracting more students into computing disciplines in the age of ubiquitous computing. This paper chronicles a decision by a department of computer science and information systems to offer an information technology literacy course as a service to its institution. Educational and curricular justifications for the course progressed in parallel with recognition of the course's strategic value to the department in the face of sharp declines in the number of students majoring in CS or IS. Following …


Department Of Chemistry News For Alumni And Friends, Decemember 2008, Illinois State University, Department Of Chemistry Dec 2008

Department Of Chemistry News For Alumni And Friends, Decemember 2008, Illinois State University, Department Of Chemistry

Chem Letter

Newsletter of the Illinois State University Department of Chemistry


Mcnair Scholars Program, The Mcnair Team Dec 2008

Mcnair Scholars Program, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.


Full Issue, The Mcnair Team Dec 2008

Full Issue, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.


Graduate Scholar Profile, The Mcnair Team Dec 2008

Graduate Scholar Profile, The Mcnair Team

McNair Scholars Research Journal

No abstract provided.


An Extension Of The Itô Integral, Wided Ayed, Hui-Hsiung Kuo Dec 2008

An Extension Of The Itô Integral, Wided Ayed, Hui-Hsiung Kuo

Communications on Stochastic Analysis

No abstract provided.


Optimal Hedging Of Path-Dependent Options In Discrete Time Incomplete Market, Norman Josephy, Lucy Kimball, Victoria Steblovskaya Dec 2008

Optimal Hedging Of Path-Dependent Options In Discrete Time Incomplete Market, Norman Josephy, Lucy Kimball, Victoria Steblovskaya

Communications on Stochastic Analysis

No abstract provided.


Increasing The Recycling Rate In Clark County, Nevada, Emerald Laija Dec 2008

Increasing The Recycling Rate In Clark County, Nevada, Emerald Laija

UNLV Theses, Dissertations, Professional Papers, and Capstones

The purpose of this study was to identify and evaluate policies that could increase the amount of municipal solid waste recycled in Clark County, Nevada. Clark County has not met the Nevada State goal of a 25% recycling rate since it was established by the Nevada Legislature in 1991. Using the system dynamics problem solving approach, a model for Clark County was adapted from a model developed by Stave (2008) to test policy options. There was no feedback in the model due to the long lifespan of the landfill servicing Clark County and the relatively shorter time horizon of the …


The Environmental And Economic Benefits Of Highway Access Management: A Multivariate Analysis Using System Dynamics, Dan Andersen Dec 2008

The Environmental And Economic Benefits Of Highway Access Management: A Multivariate Analysis Using System Dynamics, Dan Andersen

UNLV Theses, Dissertations, Professional Papers, and Capstones

Better management of highway operations can be achieved, in part, by controlling vehicular access to adjacent properties and cross streets. This tactic, referred to as access management, has proven safety and operational benefits. However, doubts remain regarding its environmental and economic benefits.

I hypothesize that one environmental indicator, carbon emissions, will decrease with proper access management. Controlling access increases the speed at which vehicles travel, improving fuel efficiency and reducing carbon emissions. My hypothesis relative to financial impacts is that access management will neither help nor harm businesses. Controlling access can reduce travel time which has the effect of increasing …


High School Mathematics Teachers' Evolving Understanding Of Comparing Distributions, Sandra R. Madden Dec 2008

High School Mathematics Teachers' Evolving Understanding Of Comparing Distributions, Sandra R. Madden

Dissertations

Statistics has achieved a position of status in the secondary curriculum (College Board, 2006b; Franklin et al., 2007; NCTM, 2000) and understanding of statistics is essential for high school mathematics teachers if they are to engage students in thoughtful pursuit of statistical ideas. High school teachers typically are ill-prepared in the area of statistics (Ben-Zvi & Garfield, 2004a; CBMS, 2001; Shaughnessy, 1992, 2007). Using methods of design research, this study investigated 56 high school mathematics teachers' understanding of the statistical concept ofcomparing distributions and demonstrated that a modest four-day, statistics-oriented, technology-rich, professional development program may significantly improve teachers' understanding. …