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Effect Of Au Coating On The Magnetic And Structural Properties Of Fe Nanoclusters For Use In Biomedical Applications: A Density-Functional Theory Study, Q. Sun, A. K. Kandalam, Q. Wang, Puru Jena, Y. Kawazoe, M. Marquez

Physics Publications

In this paper, we report the first systematic theoretical study of gold-coated iron nanoclusters, aiming at understanding the magnetic properties of this core-shell structure used in biomedical applications. The calculations based on density-functional theory focus on the effect of gold coating on the magnetic and structural properties of iron clusters of various sizes, and the reaction of the bare and coated iron clusters with oxygen. Our results show that the magnetic moment of iron nanocore with gold coating is still significantly higher than that in bulk Fe; the coupling between Fe atoms remained ferromagnetic and is insensitive to the thickness …

Structure And Stability Of Co-N(Pyridine)(M)(-) Clusters: Absence Of Metal Inserted Structures, B. Douglas Edmonds, A. K. Kandalam, S. N. Khanna, X. Li, A. Grubisic, I. Khanna, K. H. Bowen

Physics Publications

A synergistic approach combining the experimental photoelectron spectroscopy and theoretical electronic structure studies is used to probe the geometrical structure and the spin magnetic moment of Con(pyridine)−m clusters. It is predicted that the ground state of Co(pyridine)− is a structure where the Co atom is inserted in a CH bond. However, the insertion is marked by a barrier of 0.33eV that is not overcome under the existing experimental conditions resulting in the formation of a structure where Co occupies a site above the pyridine plane. For Co2(pyridine)−, a ground-state structure is predicted in which the Co2 diametric moiety is inserted …

Gold As Hydrogen: Structural And Electronic Properties And Chemical Bonding In Si3au3+/0/- And Comparisons To Si3h3+/0/-, Boggavarapu Kiran, Xi Li, Hua-Jin Zhai, Lai-Sheng Wang

Physics Publications

A single Au atom has been shown to behave like H in its bonding to Si in several mono- and disilicon gold clusters. In the current work, we investigate the Au∕H analogy in trisilicon gold clusters, Si3Au+∕0∕−3. Photoelectron spectroscopy and density functional calculations are combined to examine the geometric and electronic structure of Si3Au−3. We find that there are three isomers competing for the ground state of Si3Au−3 as is the case for Si3H−3. Extensive structural searches show that the potential energy surfaces of the trisilicon gold clusters (Si3Au−3, Si3Au3, and Si3Au+3) are similar to those of the corresponding silicon …

The Redwood, V.102 2005-2006, Santa Clara University

The Redwood

No abstract provided.

Southern Accent September 2006 - April 2007, Southern Adventist University

Southern Accent - Student Newspaper

Southern Adventist University's newspaper, Southern Accent, for the academic year of 2006-2007.

2006 - 2007, Gardner-Webb University Graduate Academic Catalog, Gardner-Webb University

Graduate Academic Catalogs

2006 - 2007, Gardner-Webb University Graduate Academic Catalog. A. Frank Bonner, president.

2007 - 2008, Gardner-Webb University Graduate Academic Catalog, Gardner-Webb University

Graduate Academic Catalogs

2007 - 2008, Gardner-Webb University Graduate Academic Catalog. A. Frank Bonner, president.

Modeling Of Bioinspired Sensors For Flow Separation Detection For Micro Air Vehicles, Belinda A. Batten, John R. Singler, Benjamin T. Dickinson

Mathematics and Statistics Faculty Research & Creative Works

Autonomous micro air vehicle (MAV) flight faces inherent stability challenges. One challenge is controlling flow separation over the airfoil and an autonomous control system for MAV flight may be enhanced with closed loop separation control. In this work, we focus on modeling biologically inspired hair cell sensors for future flow control applications. We model the sensor output and present examples and numerical results.

The Poweratlas: A Power And Sample Size Atlas For Microarray Experimental Design And Research, Grier P. Page, Jode W. Edwards, Gary L. Gadbury, Prashanth Yelisetti, Jelai Wang, Prinal Trivedi, David B. Allison

Mathematics and Statistics Faculty Research & Creative Works

Microarrays permit biologists to simultaneously measure the mRNA abundance of thousands of genes. An important issue facing investigators planning microarray experiments is how to estimate the sample size required for good statistical power. What is the projected sample size or number of replicate chips needed to address the multiple hypotheses with acceptable accuracy? Statistical methods exist for calculating power based upon a single hypothesis, using estimates of the variability in data from pilot studies. There is, however, a need for methods to estimate power and/or required sample sizes in situations where multiple hypotheses are being tested, such as in microarray …

2006 University Employee Service Recognition Program, Western Michigan University

25 Year Club

• 25 Year Club
• New Inductees
• Members
• Retirees
• Forty Years of Service
• Thirty-Five Years of Service
• Thirty Years of Service
• Twenty Years of Service
• Fifteen Years of Service
• Ten Years of Service

Fractal Patterns Of Coral Communities: Evidence From Remote Sensing (Arabian Gulf, Dubai, U.A.E.), Samuel J. Purkis, Bernhard Riegl, Richard E. Dodge (Editor)

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

In this study, the spatial character of benthic communities is investigated in an Arabian Gulf shallow subtidal carbonate ramp setting, using IKONOS satellite imagery. The patchy distribution of three assemblages of live and dead corals on extensive (but also fragmented) hardground pavements was investigated using a variety of spatial statistics. It was found that the spatial expression of the benthic groups display characteristics that approximate to power-law distributions over several orders of magnitude to an extent that suggests fractal behaviour. Pronounced anisotropy was observed between the spatial patterns in the near-shore and off-shore region which is attributed to different mechanisms …

Origins Of The Recent Wars Of Choice And Their Impact On U.S. Global Markets, Ismael Hossein-Zadeh

ILSA Journal of International & Comparative Law

While they may have been immoral, external military operations of past empires often proved profitable and, therefore,justifiable on economic grounds.

Archaeological Investigations At The New Hope Site (41fk107) At Lake Bob Sandlin, Franklin County, Texas, Bo Nelson, Timothy K. Perttula, Leeanna Schniebs

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

The New Hope site (41FK107) is a prehistoric site located on a toe slope landform overlooking the Big Cypress Creek valley, the latter now inundated by Lake Bob Sandlin. An old creek channel lies about 100m to the east. Previous investigations reported by Nelson and Perttula indicate that the New Hope site covers about 2.5 acres, and was occupied during Late Paleoindian, Middle-Late Archaic, Woodland, and post-A.D. 800 Caddo times.

The Caddo occupation was the principal occupation of the site. Nelson and Perttula noted at least 20-30 grave-sized looter holes there, and there have been reports that prehistoric burials have …

From Mounds To Monasteries: A Look At Spiro And Other Centers Through The Use Of Metaphor, Robert L. Brooks

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

Previous study of the extensive and elaborate funerary offerings at the Spiro site have explained their presence by an exchange system with Spiro functioning as a gateway center. More recently, Schambach has argued extensively and passionately for Spiro’s role as an entrepôt redistributive center. However, this argument fails to account for much of the accumulation of funerary items present at Spiro. As an alternative, I propose that some ceremonial centers such as Spiro functioned solely as religious centers, much like the monasteries of medieval Europe with parallels in the use of architecture, economic support, relics, and the treatment of individuals …

Impacts Of A Manure Composting Program On Stream Water Quality, A. Bekele, A. M.S. Mcfarland, A. J. Whisenant

Faculty Publications

In February 2001, the Texas Commission on Environmental Quality (TCEQ) adopted a Total Maximum Daily Load (TMDL) for soluble reactive phosphorus (SRP) along the North Bosque River. Within this TMDL, dairy waste application fields were identified as the major nonpoint-source contribution of nutrients. In September 2000, a manure composting program was initiated that resulted in about 500,000 metric tons of dairy manure being hauled to composting facilities and exported from the watershed through December 2004. To evaluate the impact of the manure composting program on stream water quality, storm event mean concentrations of nutrients and total suspended solids were compared …

Geospatial Analysis Of Southern Pine Biome And Pollen Distribution Patterns In Southeastern, I-Kuai Hung

Faculty Publications

The spatial relationship between the parent plants and the distribution of their pollen rain is extremely important for the survival and health of natural ecosystems. In our modern societies there is a continuous and extensive need for wood products, therefore, the health and productivity of the forest ecosystems should be primary concerns for practitioners and researchers. Southern yellow pine forested biomes consist of four major pine species that have been extremely important as American timber sources and as income for the lumber industry. Currently, the intensive harvesting and exploitation of southern pine forests have created a series of highly fragmented …

Correlation Between Pollen Dispersion And Forest Spatial Distribution Patterns In The Southeastern United States, I-Kuai Hung

Faculty Presentations

The pollen that falls to the surface at any given point is called the pollen rain. For most regions of the world the pollen rain provides a fairly reliable record of the plants that produce and disperse airborne pollen within a radius of about 30 km from the sampled location. To some extent the local pollen rain can also reflect limited information about the insect-pollinated plants living in a region. For some regions of North America, existing studies of the pollen rain and the regional vegetation associated with those data demonstrate a reliable relationship between these two vegetation aspects. For …

Archaeological Testing For The Walker Ranch Park Bridge Project (41bx1271), San Antonio, Bexar County, Texas, Barbara A. Meissner

Index of Texas Archaeology: Open Access Gray Literature from the Lone Star State

In April 2006 the Center for Archaeological Research (CAR) of the University of Texas at San Antonio was contracted by the Parks and Recreation Department of the City of San Antonio to perform subsurface investigations within the boundaries of site 41BX1251, in north-central San Antonio, Bexar County, Texas. The purpose of the testing was to learn if the concrete abutment of a planned pedestrian bridge over Salado Creek would impact significant archaeological deposits in this site, which is a part of the Walker Ranch National Historic District.

Five shovel tests and one backhoe trench were excavated. The shovel tests were …

Racing Against The Asfa Clock: How Incarcerated Parents Lose More Than Freedom, Emily K. Nicholson

Duquesne Law Review

No abstract provided.

Guide To Participation For The Andrill Mcmurdo Ice Shelf Project, Andrill Science Management Office, Mcmurdo-Andrill Science Implementation Committee

ANDRILL Project Information

Purpose of This Document

This document is a guide to participation for science team members involved in the McMurdo Ice Shelf (MIS) Project of the ANDRILL Program. The document provides the following information: 1) An overview of the ANtarctic geologic DRILLing (ANDRILL) Program; 2) An overview of expected individual involvement in and commitment to the MIS Project; and 3) Logistical information most relevant to on-ice participants. Information provided in this document will be supplemented by the publication of the MIS Science and Logistics Implementation Plan (SLIP).The SLIP will be available to all MIS ANDRILL participants prior to commencement of drilling. …

Rediscovery And Redescription Of The Remarkable Phoenicus Sanguinipennis Lacordaire (Coleoptera: Cerambycidae: Trachyderini) From The Dominican Republic, Steven Lingafelter, Eugenio Nearns

USDA Systematic Entomology Laboratory

Phoenicus sanguinipennis was described by Lacordaire in 1869 based on one male specimen of unknown origin. We rediscovered this species 135 years later in the Punta Cana region in La Altagracia Province of eastern Dominican Republic (18°30.477’N, 68°22.499’W). Twenty-seven specimens were collected at lights and on dead Maclura tinctoria (Linnaeus) D. Don ex Steudel (Moraceae). We provide a thorough description of the species and the previously unknown female, and a discussion of the previous and current knowledge of the species.

Alternative Fuels And Advanced Technology Vehicles: Issues In Congress, Brent D. Yacobucci

Congressional Research Service Reports

Alternative fuels and advanced technology vehicles are seen by proponents as integral to improving urban air quality, decreasing dependence on foreign oil, and reducing emissions of greenhouse gases. However, major barriers — especially economics — currently prevent the widespread use of these fuels and technologies. Because of these barriers, and the potential benefits, there is continued congressional interest in providing incentives and other support for their development and commercialization.

In the 109th Congress, alternative fuels and advanced technology vehicles have received a good deal of attention, especially in the debate over omnibus energy legislation. High fuel prices, especially in response …

Western Water Resource Issues, Betsy A. Cody, Pervaze A. Sheikh

Congressional Research Service Reports

For more than a century, the federal government has constructed water resource projects for a variety of purposes, including flood control, navigation, power generation, and irrigation. While most municipal and industrial water supplies have been built by non-federal entities, most of the large, federal water supply projects in the West, including Hoover and Grand Coulee dams, were constructed by the Bureau of Reclamation (Department of the Interior) to provide water for irrigation.

Growing populations and changing values have increased demands on water supplies and river systems, resulting in water use and management conflicts throughout the country, particularly in the West, …

Human Cloning, Judith A. Johnson, Erin D. Williams

Congressional Research Service Reports

In December 2005, an investigation by Seoul National University, South Korea, found that scientist Hwang Woo Suk had fabricated results on deriving patientmatched stem cells from cloned embryos — a major setback for the field. In May 2005 Hwang had announced a significant advance in creating human embryos using cloning methods and in isolating human stem cells from cloned embryos. These developments have contributed to the debate in the 109th Congress on the moral and ethical implications of human cloning. Scientists in other labs, including Harvard University and the University of California at San Francisco, intend to produce cloned human …

Oversight Of Dual-Use Biological Research: The National Science Advisory Board For Biosecurity, Dana A. Shea

Congressional Research Service Reports

Policymakers have addressed the threat of biological weapons and biosecurity issues for many years. An issue garnering increased attention is the potential for life sciences research intended to enhance scientific understanding and public health to generate results that could be misused to advance biological weapon effectiveness. Such research has been called “dual-use” research because of its applicability to both biological countermeasures and biological weapons.

The federal government is a major source of life sciences research funding. Tension over the need to maintain homeland security and support scientific endeavor has led to renewed consideration of federal policies of scientific oversight. Balancing …

Science And Technology Policy: Issues For The 109th Congress, Frank Gottron

Congressional Research Service Reports

Science and technology have a pervasive influence over a wide range of issues confronting the nation. Decisions on how much federal funding to invest in research and development (R&D), and determining what programs have the highest priority, for example, may have implications for homeland security, new high technology industries, government/private sector cooperation in R&D, and myriad other areas.

This report indicates the sweep of science and technology in many public policy issues, although it cannot provide a comprehensive examination of every science or technology issue which may be of interest to Congress. In some areas, such as global climate change …

Limnological And Landscape Factors Affecting Use Of Manufactured Ponds By The Invasive Cuban Treefrog (Osteopilus Septentrionalis), Terina Nusinov

Electronic Theses and Dissertations

Exotic amphibians are often detrimental to native biotas. In Florida, the exotic Cuban Treefrog (Osteopilus septentrionalis) eats native frogs and may outcompete them for resources. Cuban Treefrogs thrive in disturbed areas and around buildings, and often breed in manufactured wetlands such as retention ponds and borrow pits. This study identified limnological, landscape, and biotic characteristics that discouraged pond use by Cuban Treefrogs and promoted use by native amphibian species. I sampled natural and manufactured ponds in Orange County, Florida, for one year, using standard methods to estimate the species richness and relative abundance of amphibians and their potential fish and …

Is The Exotic Brazilian Pepper, Schinus Terebinthifolius, A Threat To Mangrove Ecosystems In Florida?, Melinda Donnelly

Electronic Theses and Dissertations

Mangrove ecosystems are critical to Florida, providing economic resources to humans, and untold ecological resources to estuarine organisms. In Florida's estuaries, mangrove ecosystems have suffered significant losses due to natural and human disturbances; these disturbances potentially leave mangrove communities vulnerable to invasion by the opportunistic exotic, Schinus terebinthifolius (Brazilian pepper). Prior experiments have suggested that Schinus terebinthifolius is unable to survive under marine conditions and poses no long term threat to mangrove systems. However, this contradicts field observations where Schinus terebinthifolius was found growing in the intertidal zone of Mosquito Lagoon alongside three native species of mangroves, Rhizophora mangle, Avicennia …

Predicting Risks Of Invasion Of Caulerpa Species In Florida, Christian Glardon

Electronic Theses and Dissertations

Invasions of exotic species are one of the primary causes of biodiversity loss on our planet (National Research Council 1995). In the marine environment, all habitat types including estuaries, coral reefs, mud flats, and rocky intertidal shorelines have been impacted (e.g. Bertness et al. 2001). Recently, the topic of invasive species has caught the public's attention. In particular, there is worldwide concern about the aquarium strain of the green alga Caulerpa taxifolia (Vahl) C. Agardh that was introduced to the Mediterranean Sea in 1984 from the Monaco Oceanographic Museum. Since that time, it has flourished in thousands of hectares of …

Looking Through Rose Colored Glasses:The Media's Influence On Perceptions Of Romance And Marriage, Brianne Straub

Electronic Theses and Dissertations

This study examined the relationship between different media and expectations about romantic relationships and marriage. Participants were asked to complete a survey that measured different romantic constructs and the types of media exposures on a daily and weekly basis. The variables were measured to determine the effect the media play in a person's perceptions on romantic relationships and marriage. The results of the study concluded that although general television viewing does not predict perceptions about romance and marriage, the romantic genre of television programs as well as magazines do have a role in predicting romantic perceptions.