Digital Commons Network^™

Water Quality Impacts From Agricultural Land-Use In The Karst Groundwater Basin Of Qingmuguan, Chongqing, China, Ted W. Baker

Masters Theses & Specialist Projects

Karst regions are composed of soluble rock, often limestone, which leads to the formation of fissures, sinkholes and water flow conduits such as caves. Pollutants in karst waters tend to be quickly directed and concentrated into these subsurface conduits. As a result of this and other factors, water resources are especially sensitive to contamination and pollution in karst areas. Pollutant concentrations going into fluvial systems travelling through the subsurface in karst areas are often very similar to the concentrations arriving at outlets such as springs. Areas connected by karst conduit flows must be distinctly determined and special attention should be …

Mathematical Models Of Zea Mays: Grain Yield And Aboveground Biomass Applied To Ear Flex And Within Row Spacing Variability, Todd Curtis Ballard

Masters Theses & Specialist Projects

Field studies were conducted during the summers of 2007 and 2008 at the Agricultural Research and Education Complex, Western Kentucky University, Warren County, KY and commercial production fields in Caldwell County, KY, Warrick County IN, and Vanderburgh County, IN. The goals of these studies were to further validate the Duncan grain yield model, the Russell aboveground biomass model, and to study the effect of inconsistent spacing within rows on Zea mays L. yield. Plant spacing other than uniform decreases grain yield and profitability. The population experiments conducted at the Warren County location were a randomized complete block design with three …

Atrazine Contamination And Suspended Sediment Transport Within Logsdon River, Mammoth Cave, Kentucky, Julie Eileen Schenck Brown

Masters Theses & Specialist Projects

Understanding the potential for karst aquifer contamination by sediment-sorbed pesticides is important for cave conservation efforts in agricultural landscapes. Flow rate, water quality parameters and suspended sediment concentrations were measured in Logsdon River, a ~10km karst conduit within the Turnhole Spring Groundwater Basin of Mammoth Cave National Park to determine characteristics of storm-period transport of sediment-sorbed atrazine through a conduit-flow karst aquifer.

Analysis of two independent precipitation events occurring in the Spring of 2008 from May 2-4 and May 27-29 demonstrated the rapid response of the Logsdon River to precipitation events with detections of atrazine increasing during the initial turbidity …

John Jay Sentinel Volume 1, No 1, John Jay College Of Criminal Justice

Student Newspapers

No abstract provided.

Numerical Modeling Of A Stenosed Artery Using Mathematical Model Of Variable Shape, S. Mukhopadhyay, G. C. Layek

Applications and Applied Mathematics: An International Journal (AAM)

The intention of the present work is to carry out a systematic analysis of flow behavior in a two-dimensional tube (modeled as artery) with a locally variable shaped constrictions. The simulated artery, containing a viscous incompressible fluid representing the flowing blood, is treated to be complaint as well as rigid tube. The shape of the stenosis in the arterial lumen is chosen to be symmetric as well as asymmetric about the middle cross section perpendicular to the axis of the tube in order to improve resemblance to the in-vivo situation. The constricted tube is transformed into a straight tube and …

Faculty Senate Monthly Packet December 2008, Portland State University Faculty Senate

Faculty Senate Monthly Packets

The December 2008 Monthly packet includes the December agenda and appendices and the Faculty Senate minutes and attachments from the meeting held November 2008

Timss 2007: Taking A Closer Look At Mathematics And Science In Australia, Sue Thomson, Nicole Wernert, Catherine Underwood, Marina Nicholas

TIMSS 2007

The Trends in Mathematics and Science Study (TIMSS 2007) is the latest in a series of international studies of mathematics and science, conducted under the aegis of the International Association for the Evaluation of Educational Achievement (IEA). The goal of TIMSS is to provide comparative information about educational achievement across countries to improve teaching and learning in mathematics and science. TIMSS measures trends in mathematics and science achievement at Year 4 and Year 8, as well as monitoring curricular implementation. Conducted on a regular four-year cycle, TIMSS has assessed mathematics and science in 1995, 1999, 2003, and 2007. In addition …

Highlights From Timss 2007 From Australia’S Perspective: Highlights From The Full Report, Taking A Closer Look At Mathematics And Science In Australia, Sue Thomson, Nicole Wernert, Catherine Underwood, Marina Nicholas

TIMSS 2007

In 2007, Australia participated in the Trends in International Mathematics and Science Study (TIMSS 2007). TIMSS 2007 is the fourth in a cycle of internationally comparative assessments conducted under the aegis of the International Association for the Evaluation of Educational Achievement (IEA) dedicated to improving teaching and learning in mathematics and science for students around the world. Carried out every four years at Year 4 and Year 8, TIMSS provides data about trends in mathematics and science achievement over time. In Australia, TIMSS is part of MCEETYA’s National Assessment Program. To inform educational policy in the participating countries, this world-wide …

Outcome Evaluation: United Nations Development Programme Support To "Strengthening And Further Expansion Of The Mine Action Capacity In Azerbaijan" Project, Alistair Craib

Global CWD Repository

The Azerbaijan National Agency for Mine Action (ANAMA) is a success story and is one of only five such agencies with comparable success. If the main stakeholders maintain their current support and approach to it, that success should continue.

The United Nations Development Programme (UNDP) approach to the project with ANAMA has proven to be a large part of this success and although its impact is now less – given the increasing strength of ANAMA – its role is still very important.

All the Outcomes and Outputs assessed by this evaluation have been met.

Finding Life: An Organic Model Of Renewal For Existing Churches, Thomas E. Rester Jr.

Doctor of Ministry

Statistics reveal most existing mainline churches are small, declining, and unable to minister effectively in their current environment. Rising stress is the result for these congregations. For mission and ministry to continue in many of these places, the stress must become an opportunity to release a deeper organic understanding of identity and ministry within the fluid postmodern context.

Chapter 2 presents biblical materials from the book of Acts. Focusing on Acts 15, we discover that in a moment of fil"eat stress and confusion, the church was able to e change and evolve to find new life in the midst of …

The Statesman, V. 52, I. 23, Stony Brook University

Stony Brook Statesman-Sucolian

v. 52, i. 23

Daniel Gal, Daniel Gal, Amram Elofer

Shabbat Shalom: A Journal for Jewish-Christian Reconciliation

No abstract provided.

Steganography In Ipv6, Barret Miller

Computer Science and Computer Engineering Undergraduate Honors Theses

Steganography is the process of hiding a secret message within another message such that it is difficult to detect the presence of the secret message. In other words, the existence of the secret message is hidden. A covert channel refers to the actual medium that is used to communicate the information such as a message, image, or file. This honors thesis uses steganography within the source address fields of Internet Protocol Version 6 (IPv6) packets to create a covert channel through which clandestine messages are passed from one party to another. A fully functional computer program was designed and written …

Flight Physician - December, 2008, Civil Aviation Medical Association

Browse all Civil Aviation Medical Association Newsletters

A sixteen page newsletter of the Civil Aviation Medical Association. The newsletter provided news about civil aviation medicine and information related to the organization.

December 2008 - Volume Viii, Number 1, Theatre Arts Department

Sides (Newsletter)

SIDES Volume VIII Number 1 includes articles on Mammoth Follies, Second City, and a Makeup Workshop.

Understanding The Human Aspects Of Animal Hoarding, Amanda I. Reinisch

Passive Cruelty to Animals Collection

The Hoarding of Animals Research Consortium reviewed the case records of 71 incidents from across the United States and Canada to determine what characterizes a typical animal hoarding case (5). Of the cases reviewed, 83% involved women (71% involved individuals, who were widowed, divorced, or single); 53% of the animal hoarding residences were home to other individuals including children (5%), elderly dependents and disabled people (21%). Often essential utilities and major appliances such as showers, heaters, stoves, toilets, and sinks were not functional. Residential home interiors were usually unsanitary, 93%; 70% had fire hazards; and 16% of residences involved in …

Wildfire And Abrupt Ecosystem Disruption On California's Northern Channel Islands At The Allerod-Younger Dryas Boundary (13.0-12.9 Ka), Douglas J. Kennett, James P. Kennett, G. J. West, Jon M. Erlandson, J. R. Johnson, I. L. Hendy, A. West, B. J. Culleton, Terry L. Jones, Thomas W. Stafford, Jr.

Social Sciences

Sedimentary records from California's Northern Channel Islands and the adjacent Santa Barbara Basin (SBB) indicate intense regional biomass burning (wildfire) at the Ållerød–Younger Dryas boundary (~13.0–12.9 ka) (All age ranges in this paper are expressed in thousands of calendar years before present [ka]. Radiocarbon ages will be identified and clearly marked “¹⁴C years”.). Multiproxy records in SBB Ocean Drilling Project (ODP) Site 893 indicate that these wildfires coincided with the onset of regional cooling and an abrupt vegetational shift from closed montane forest to more open habitats. Abrupt ecosystem disruption is evident on the Northern Channel Islands at …

Utilizing Quantum Dots To Enhance Solar Spectrum Conversion Efficiencies For Photovoltaics, Richard N. Savage, Hans Mayer, Matthew Lewis, Dan M. Marrujo

Materials Engineering

Silicon-based photovoltaics typically convert less than 30% of the solar spectrum into usable electric power. This study explores the utilization of CdSe based quantum dots as spectral converters that absorb the under utilized UV portion of the solar spectrum and fluoresce at wavelengths near the band-gap of silicon-based solar cells. A flexible 1 mm thick thin-film structure that contains an array of microfluidic channels is designed and fabricated in polydimethylsiloxane (PDMS) using soft-lithographic techniques. The channels are approximately 85 microns wide by 37 microns tall and are filled with a solution containing the quantum dots. The thin-film structure can easily …

Dispersal Of The Hudson River Plume In The New York Bight: Synthesis Of Observational And Numerical Studies During Latte, Robert J. Chant, John Wilkin, Weifeng Zhang, Byoung-Ju Choi, Eli Hunter, Renato Castelao, Scott Glenn, Joe Jurisa, Oscar Schofield, Robert Houghton, Josh Kohut, Thomas K. Frazer, Mark A. Moline

Biological Sciences

Observations and modeling during the Lagrangian Transport and Transformation Experiment (LaTTE) characterized the variability of the Hudson River discharge and identified several freshwater transport pathways that lead to cross-shelf mixing of the Hudson plume. The plume’s variability is comprised of several different outflow configurations that are related to wind forcing, river discharge, and shelf circulation. The modes are characterized by coastal current formation and unsteady bulge recirculation. Coastal currents are favored during low-discharge conditions and downwelling winds, and represent a rapid downshelf transport pathway. Bulge formation is favored during high-discharge conditions and upwelling winds. The bulge is characterized by clockwise …

Direct Extraction Of Normal Mapped Meshes From Volume Data, Mark Barry, Zoë J. Wood

Computer Science and Software Engineering

We describe a method of directly extracting a simplified contour surface along with detailed normal maps from volume data in one fast and integrated process. A robust dual contouring algorithm is used for efficiently extracting a high-quality "crack-free" simplified surface from volume data. As each polygon is generated, the normal map is simultaneously generated. An underlying octree data structure reduces the search space required for high to low resolution surface normal mapping. The process quickly yields simplified meshes fitted with normal maps that accurately resemble their complex equivalents.

60th Anniversary Of Israel

Shabbat Shalom: A Journal for Jewish-Christian Reconciliation

No abstract provided.

Watershed Condition Assessment For Little River Canyon National Preserve, Alabama, Nathan Demille Rinehart

Masters Theses & Specialist Projects

No abstract provided.

Commonwealth Times 2008-12-01

Commonwealth Times, 1969-

No abstract provided.

Overview Of Lake Erie Physical Data: Available From Ohio Geological Survey, Larry Wickstrom

Great Lakes Energy Institute: Presentations & Events

No abstract provided.

Sinorhizobium Meliloti, A Bacterium Lacking The Autoinducer-2 (Ai-2) Synthase, Responds To Ai-2 Supplied By Other Bacteria, C. S. Pereira, J. R. Mcauley, M. E. Taga, K. B. Xavier, Stephen T. Miller

Chemistry & Biochemistry Faculty Works

Many bacterial species respond to the quorum-sensing signal autoinducer-2 (AI-2) by regulating different niche-specific genes. Here, we show that Sinorhizobium meliloti, a plant symbiont lacking the gene for the AI-2 synthase, while not capable of producing AI-2 can nonetheless respond to AI-2 produced by other species. We demonstrate that S. meliloti has a periplasmic binding protein that binds AI-2. The crystal structure of this protein (here named SmlsrB) with its ligand reveals that it binds (2R,4S)-2-methyl-2,3,3,4-tetrahydroxytetrahydrofuran (R-THMF), the identical AI-2 isomer recognized by LsrB of Salmonella typhimurium. The gene encoding SmlsrB is in an operon with orthologues of the lsr …

The Nursing Shortage: A Fresh Perspective, Mary K. Wallenburg

Regis University Student Publications (comprehensive collection)

The current nursing shortage in the United States has the potential to become a major public health crisis (US Department, 2004). In recent years, a trend has developed that demonstrates a lack of interest on the part of young adults aged fifteen to eighteen years old towards nursing careers (Hoke, 2006). This research examines the attitudes and perceptions of young people, aged fifteen to eighteen years old; towards the field of nursing. The Methodology used to answer the research question was a survey tool developed by the author. The survey was created using the survey development site, Zoomerang©. Following IRB …

The Silent Witness, December 2008-January 2009

Silent Witness, The

A newsletter published for Deaf Catholics in Washington, D.C.

The Silent Witness Finding Aid

Vocabulary Size, Background Characteristics, And Reading Skill Of Korean Intensive English Students, Nolan Weil

Languages, Philosophy, and Communication Studies Faculty Publications

This study examines the relationship between breadth of vocabulary, background experiences in learning English and student skill in the reading of an academic text. The author used the Swansea Levels Tests to estimate vocabulary sizes and collected information on background characteristics via questionnaire from eleven Korean students enrolled in an Intensive English program and five Korean undergraduate students at Utah State University. Eight of the Intensive English students were subsequently trained in a think-aloud procedure and then completed a research task in which they read a 960-word essay. The task required the students to think aloud as they attempted to …

On A-Ary Subdivision For Curve Design Ii. 3-Point And 5-Point Interpolatory Schemes, Jian-Ao Lian

Applications and Applied Mathematics: An International Journal (AAM)

The a-ary 3-point and 5-point interpolatery subdivision schemes for curve design are introduced for arbitrary odd integer a greater than or equal to 3. These new schemes further extend the family of the classical 4- and 6-point interpolatory schemes.

Visioning The Future: Schoolbased Wellness Centers In Delaware: The Next 25 Years, Center For Health And Health Care In Schools

Center for Health and Health Care in Schools

In 2008, the Delaware Division of Public Health and Delaware Department of Education joined Nemours Prevention and Health Promotion in sponsoring a project to review 23 years of Wellness Center operations with the goal of identifying future directions for the program. The project was undertaken with a view towards determining what is the best health system and most effective wellness center strategies to support Delaware’s children. To assist with this work, the Center for Health and Health Care in Schools at George Washington University was asked to examine wellness center history, interview key participants in program and policy development, and …