Digital Commons Network^™

Effects Of Turbidity On The Foraging Abilities Of Brook Trout (Salvelinus Fontinalis) And Smallmouth Bass (Micropterus Dolomieu), John A. Sweka

Graduate Theses, Dissertations, and Problem Reports (ETD)

Sedimentation is the major pollutant of waters in North America. Most research on the effects of increased sedimentation has focussed on its effects on stream habitat and its ramification on the reproductive potential of fish. Although relatively large sediment loads may be necessary to alter stream habitat, only small loads are needed to raise mean stream turbidity levels. Turbidity may be an important, yet relatively unexamined factor in stream fish production. With this, I sought to determine the influence of elevated turbidity on the foraging abilities of two predatory species representing both cold and warm water stream habitas, brook trout …

Role Of Iron In The Accumulation Of Glomalin, An Arbuscular Mycorrhizal Fungal Glycoprotein, Kristine Ann Nichols

Graduate Theses, Dissertations, and Problem Reports (ETD)

Effects of iron on production of glomalin, an arbuscular mycorrhizal fungal glycoprotein, were examined. In a preliminary experiment comparing available (FeEDDHA) and unavailable iron (hematite), low amounts of glomalin were produced with the former while the latter total inhibited the symbiosis. Part of the effect of hematite was reduced spore germination. A glycoprotein cross-reacting with a monoclonal antibody against glomalin was produced in nonmycorrhizal pots. This molecule is similar to glomalin, but has some unique characteristics. Concentration increases when C3 and C4 grasses are stressed from low nutrients and/or light but levels are at least 10-fold less than glomalin. Two …

Functional Diversity And Life History Traits Of Arbuscular Mycorrhizal Fungi In Disturbed Soils, Kelly Marie Fleming

Graduate Theses, Dissertations, and Problem Reports (ETD)

Relative effectiveness of ten species of arbuscular mycorrhizal fungi native to a revegetated coal strip mine site was tested on red clover against a non-mycorrhizal control and against inocula of two commercial isolates. Most (70%) of the isolated species in a native fungal community were as effective at promoting growth as commercial isolates. The net benefit of native colonizing fungi likely was positive, since the majority of the fungi colonizing two-year-old apple and grape in the field also were effective symbionts. The relationship between colonization and sporulation was compared among one Acaulospora , two Glomus, one Gigaspora, and one Scutellospora …

Measurement Of Particulate Matter Size, Concentration And Mass Emissions From In-Use Heavy Duty Vehicles, Richard Jason Byers

Graduate Theses, Dissertations, and Problem Reports (ETD)

As technological advancements lower heavy duty vehicle particulate matter (PM) mass emission rates, there is concern that these improvements are increasing the toxicity of the PM by virtue of a subsequent reduction in particle size. These ultrafine particles are able to better penetrate the alveolar region where they can cause serious lung disorders. Alternative fuels such as compressed and liquefied natural gas (CNG and LNG) and the synthetic diesel fuel Mossgas are attractive in that they reduce the levels of total PM. However, use of natural gas in internal combustion engines may produce a larger number of smaller particles than …

Oocyte Morphology And Estrogen Concentrations Following A Reduction In Progesterone In Beef Cattle, Robert A. Taft Jr.

Graduate Theses, Dissertations, and Problem Reports (ETD)

Low dosages of progestogens promote persistent follicles, high systemic estrogen and low fertility. The objectives of this study were to determine effects of a reduction in progesterone on (1) morphology of oocytes and intrafollicular concentrations of estradiol. Cows on low progesterone (n = 12) received used intravaginal progesterone inserts on d 4 after estrus and prostaglandin (PG) F2alpha (25 mg, i.m.) on d 6. Control animals (n = 12) received saline on d 6. The oocyte and follicular fluid were recovered from the largest follicle on d 8 or d 10.;Serum estradiol was lower during d 4--6 but greater (P < .01) during d 7--10 in cows treated with progesterone inserts and PGF 2alpha while the largest follicle was larger in treated cows on day 10 only (14 vs. 12 mm; P < .05). Intrafollicular concentrations of estrogen were greater in treated than in control cows (990 +/- 87 vs 191 +/- 106; P < .01). Progesterone in follicular fluid (mean = 42 ng/ml) did not differ. Oocytes were observed in oocyte nuclear stage I in the control group on d 8. All other oocytes were in nuclear stage II. In addition, the degree of clumping of mitochondria, the percentage of intact cumulus cell processes and percentage of normally shaped mitochondria was greater in oocytes from d 8 control cows than in all other groups.;Changes in concentrations of estradiol and oocyte morphology typically associated with the preovulatory period had occurred within 2 d after a reduction in progesterone, even when low peripheral concentrations of progesterone were maintained. These earliest stages of oocyte maturation occurred in response to a reduction in progesterone. Similar changes in oocyte morphology were observed in control animals by d 10 of the estrous cycle, probably representing the onset of atresia.

Museum Education: A Closer Look: Reinforcing Visual Literacy Skills Through Museum-School Collaboration, Margaret A. Wastie

Seton Hall University Dissertations and Theses (ETDs)

.

Design And Development Of A Microwave-Enhanced Diesel Soot Oxidation System, Bret Allen Rankin

Graduate Theses, Dissertations, and Problem Reports (ETD)

Diesel particulate matter (PM) emissions have created considerable concern because PM is a suspected carcinogen. Up to this point, improved engine and fuel system design and control schemes have made the use of diesel particulate aftertreatment systems unnecessary for most applications in the United States, but the continued decreasing trend of emissions regulations may necessitate the use of PM filters for many applications.;Many methods have been developed to generate a controlled, reliable regeneration event within PM filters, none of which have been proven to be completely successful. These methods include exhaust throttling, fuel catalysis, filter catalysis, electrical heating, and burner …

From Self To Other In Oliver Stone's Vietnam Trilogy: Platoon, Born On The Fourth Of July, And Heaven And Earth, Hyeong-Min Kang

Theses and Dissertations

As a Vietnam veteran film director, Oliver Stone has made several controversial films on the Vietnam War and the 1950s. Among his filmography, we can categorize Platoon (1986), Born on the Fourth of July (1989), and Heaven and Earth (1993)-Stone's so called Vietnam Trilogy-as the most direct depictions of the war and its aftermath, whereas The Doors (1991), JFK (1991), and Nixon (1995) examine the broader political and cultural dimension of the war and the era. Throughout his Vietnam films, Stone struggles to find the new America's identity by studying the historical meaning of its past events and characters, because …

The Assault On The Global Economy, Murray L. Weidenbaum

Murray Weidenbaum Publications

The global economy is under assault by a strange alliance of radical groups and several mainstream environmental organizations. The outfits from the far left are long-term opponents of the capitalist system, both at home and abroad, so their opposition to trade between nations is neither new nor newsworthy. It is surprising, however, that organizations like the Sierra Club and Friends of the Earth have joined this effort to oppose the modern economy. This paper attempts to respond to these views. Isolationist policies are a foolhardy, futile pursuit in today's interconnected, globalized economy.

Multimode Solution For The Reflection Properties Of An Open-Ended Rectangular Waveguide Radiating Into A Dielectric Half-Space: The Forward And Inverse Problems, R. Zoughi, Aaron D. Benally, Karl Joseph Bois

Electrical and Computer Engineering Faculty Research & Creative Works

Open-ended rectangular waveguides are extensively used in nondestructive dielectric material evaluation. The dielectric properties of an infinite-half space of a material are calculated from the measured reflection properties referenced to the waveguide aperture. This calculation relies on a theoretical and numerical derivation of the reflection coefficient likewise referenced to the waveguide aperture. Most of these derivations assume the dominant mode field distribution across the waveguide aperture. However, when dealing with low permittivity and low loss dielectric materials, there may exist significant errors when calculating the dielectric properties from the measured reflection coefficient. These errors have also shown to be more …

December 1, 1999, The Daily Mississippian

Daily Mississippian (all digitized issues)

No abstract provided.

Implementing Organizational Change In A Public Agency, David E. Freed

Dissertations

A major challenge that faces most institutions is that of adapting to and managing change. The leadership of an organization is a key focal point for analyzing how change is accomplished.

This study examines both a theoretical and practical approach to the study of organizational and cultural change. The focus is a public agency and the actions and decision processes of the top leadership relating to organizational and cultural change during the period 1992 to 1995.

From the theoretical perspective, Karl Weick’s approach called sensemaking is examined and a model is created. Sensemaking is an activity that is an explanatory …

1999 December, Office Of Communications & Marketing, Morehead State University.

Morehead State Press Release Archive, 1961 to the Present

Morehead State University press releases for December of 1999.

Of Beginnings And Endings, Susan Vanrees

Pro Rege

No abstract provided.

Strategic Planning For Research Use In Nursing Practice, Chris Van Mullem, Laura Burke, Kari Dohmeyer, Marie Farrell, Sue Harvey, Laura John, Carolyn Kraly, Fran Rowley, Margaret Sebern, Kerry Twite, Roberta Zapp

College of Nursing Faculty Research and Publications

Background/Objective:

To prepare for a culture change to integrate research utilization into daily nursing practice, the authors conducted a descriptive survey of all registered nurses (RNs) in an integrated healthcare delivery system. The purposes of this study were to assess RNs' knowledge, attitudes, and practices (KAP) of nursing research activities, assess factors that support a research environment, and determine facilitating and challenging factors related to conducting regional nursing research.

Methods:

A 33-item survey based on the Iowa Model for Evidence-Based Practice was developed, validated, and determined to be reliable by the authors. Site coordinators organized and managed the orientation, administration, …

Taking R&E To The Next Level, Thomas W. Blaine, Stephen Hudkins, Charles R. Taylor

Journal of Extension

During the late 1980s, the business retention and expansion (R&E) program emerged as one of the most successful programs in Ohio State University Extension's Community Development area. As the economic recovery of the early 1990s turned into an economic expansion, business and civic leaders began to shift focus from general R&E efforts to issues related to labor force preparedness. A survey of businesses in Portage County undertaken four years after completion of an R&E program reveals that, while employers believe that local resources are available to help improve basic math and communication skills of employees, those skill levels are still …

Army Professionalism, The Military Ethic, And Officership In The 21st Century, John A. Nagl Major, C. Anthony Pfaff Dr., Don M. Snider Dr.

Books, Monographs & Collaborative Studies

The authors address what they—and many others—perceived to be a decline in military professionalism in the Army officer corps. The authors first describe the ethical, technical, and political components of military professionalism and then address the causes for the decline. They conclude by proposing a set of principles which, if adhered to, will reinvigorate the vision of the officer corps and motivate the corps to selfless service.

Dit Independent, 1st.-30th. Of December, 1999, Dit:Students Union

DIT Student Union

No abstract provided.

Multimedia Databases, S. R. Subramanya

Electrical and Computer Engineering Faculty Research & Creative Works

The acquisition, generation, storage and processing of multimedia data in computers and transmission over networks have grown tremendously. Databases have been developed to cope with huge amounts of data in different applications. Multimedia databases (MMDB) are essential for efficient management and effective use of this data. They are however still in their infancy. Most current MMDB system prototypes are closely bound to narrow application areas. Experiences gained from developing and using novel multimedia will help advance the multimedia database technology.

Measuring Information Quality Of Web Site: Development Of Instrument, P. Katerattanakul, Keng Siau

Research Collection School Of Computing and Information Systems

Web sites have been extensively used to provide information to consumers. While practitioners and researchers have proposed different criteria for effective Web site design based on common sense, intuition, and rules-ofthumb, effective Web site design focusing on the quality of the information it provides has rarely been studied. In this research, we propose a framework and develop an instrument to measure the information quality of individual or personal Web sites. The theoretical foundation of this research is the information quality framework. The proposed framework and instrument were tested in an individual or personal Web site context.

A Numerical Simulation Of A Carbon Black Suspension Cell Via A Time-Reversed, Double Layer Compute Algorithm, Gregg T. Anderson

Theses and Dissertations

A numerical simulation of a carbon black suspension cell is explored which models a laser-induced plasma within a liquid ethanol medium of approximately 1 mm thickness. The simulation model assumes a laser pulse with a pulse width of approximately 9 nsecs propagating in the left-to-right direction striking the front surface of the medium and focusing to a spot within the liquid volume. When the energy density within a given irradiated volume is sufficiently high, it ignites the carbon particles and generates a large number of free electrons, i.e., a plasma. The plasma couples with the in-coming laser energy on a …

Network Security Versus Network Connectivity: A Framework For Addressing The Issues Facing The Air Force Medical Community, Franklin E. Cunningham Jr.

Theses and Dissertations

The Air Force has instituted Barrier Reef to protect its networks. The Air Force medical community operates network connections that are incompatible with Barrier Reef. To overcome this problem, OASD(HA) directed the Tri-Service Management Program Office (TIMPO) to develop an architecture that protects all military health systems and allows them to link with all three services and outside partners. This research studied the underlying networking issues and formed a framework based on data from network experts from the Air Force's medical centers and their base network organizations. The findings were compared TIMPO and a composite framework was developed that more …

Impact Of Actual Facilitator Alignment, Co-Location, And Video Intervention On The Efficacy Of Distributed Group Support Systems, Brian J. Heberlie, Mary O. Tolbert

Theses and Dissertations

The growth of distributed group support systems (GSS) suggests that organizations will continue to bring dispersed groups of people together to make decisions over computer networks. In many instances those groups are temporarily assembled to address a task and then summarily disbanded never to work together again. In order for users to effectively use the GSS issues of trust and control need to be addressed within the GSS design. Users have perceptions about the fairness of structural and social determinants of the GSS design. These perceptions influence both the decision making process and process outcomes. This article shows the negative …

An Analysis Of Training Adequacy And Additional Training Requirements As Perceived By Communications And Information Officers, Rex W. Little

Theses and Dissertations

This study explores requirements for additional training Communications and Information officers. This research also looks at the best time to provide training/education in the identified training deficient areas. Training areas and categories were established by two previous theses and were modified by a group of field experts for this research. The following questions were posed in an effort to obtain the perception of officers in the field: (1) What training areas do Communications and information officers feel are deficient? (2) At what point during a Communications and Information officer's career would it be most appropriate to receive training in necessary …

Extension's Portfolio For The 21st Century: A Place For One-On-One Consultations, Peggy Petrzelka, Steve Padgitt, Wendy Wintersteen

Journal of Extension

Revisits the individual consultations that provided the base from which the Cooperative Extension Service grew. Using data gathered from clients' and Extension staff evaluations of one-on-one activities, our findings show these consultations have an economic and educational value for clients. The consultations benefit field specialists as well, augmenting their need assessments by providing information from in the field, providing opportunities for on-going research, and building credibility. It is maintained that continuing (or re-implementing) these consultations as part of Extension's portfolio for the 21st Century has mutual benefit, both to the client and to Extension.

Child Protection As A Judicial Burden On Religion And The Impact Of Religious Liberty Legislation, Robert J. Bruno

Cardozo Law Review

No abstract provided.

Impact "Women's Participation In Public Policy" Seminars On Participants' Knowledge Gain, Practice Change, And Attitude Change, Charlotte Gorman

Journal of Extension

This study measured the impact of a series of seminars titled "Women's Participation in Public Policy" on participants' knowledge gain, levels of participation in public policy affairs, and attitude change. The study used the pre-test/post-test design. The population was limited to those who attended at least five of the seven sessions in the seminar series. Analysis of the data indicated that the seminar series resulted in participants generally: (a) becoming more knowledgeable about decision makers, (b) developing more positive feelings about themselves and their ability to control their own lives and situations, and (c) increasing their participation in public policy …

Imagining The Future: Training Hong Kong Lawyers For The 21 St Century, David N. Smith

Research Collection Yong Pung How School Of Law

Hong Kong must commit itself now to becoming one of the leaders in legal education in Asia and the world. To do so, it must dramatically rethink the structure, process and content of legal education. This will not be easy, but it is essential if Hong Kong is to continue to serve as one of the great centres of finance, trade and technology in the world and if it is to maintain and secure a position of leadership in 21st century China and the Pacific region.

Mustang Daily, November 30, 1999

Cal Poly Student Newspaper

Student newspaper of California Polytechnic State University, San Luis Obispo, CA.

The Daily Egyptian, November 30, 1999, Daily Egyptian Staff

November 1999

No abstract provided.