Digital Commons Network^™

From Metchnikoff To Monsanto And Beyond: The Path Of Microbial Control, Jeffrey C. Lord

United States Department of Agriculture-Agricultural Research Service / University of Nebraska-Lincoln: Faculty Publications

In 125 years since Metchnikoff proposed the use of Metarhizium anisopliae to control the wheat cockchafer and brought about the first field trials, microbial control has progressed from the application of naturalists’ observations to biotechnology and precision delivery. This review highlights major milestones in its evolution and presents a perspective on its current direction. Fungal pathogens, the most eye-catching agents, dominated the early period, but major mycological control efforts for chinch bugs and citrus pests in the US had questionable success, and interest waned. The discoveries of Bacillus popilliae and Bacillus thuringiensis began the era of practical and commercially viable …

The Scholarship Of Reflective Practice, Dawn Freshwater, Sara Horton-Deutsch, Gwen D. Sherwood, Beverly J. Taylor

Sigma Resource Papers

This resource paper describes definitions of reflection and reflective practice, and their historical context, methods, processes, applications, benefits, and limitations. Recommendations are made regarding policy and research agenda items for reflective practice worldwide. In the spirit of inquiry and reflection, questions for exercising thought are included throughout this document. Recommendations are made to promote reflective practice in nursing worldwide.

For further information regarding reflective practice, visitors to this item may be interested in the STTI published book, Reflective practice: Transforming education and improving outcomes (2012), authored by Gwen D. Sherwood & Sara Horton-Deutsch, two of the authors listed in …

Integrating Journal Writing With Inquiry Based Science Instruction In A Second Grade Classroom, Lauren Zissman

Electronic Theses and Dissertations

This action research study investigated the effects of using science journals to promote science writing and to investigate changes in student attitudes in a second grade inquiry-based science class. This was an action research study in which qualitative and quantitative data was collected. The data was collected using science journals, pre and post inventories, field notes, teacher observations, videotaped science inquiry lessons, and surveys. The students demonstrated a true fondness for journal writing and expressed interest in continued use. After concluding this action research study, I better understand the benefits of utilizing journal writing to enhance my teaching of the …

An Inquiry Into Discourse Choices As Indicators Of Gender Attitudes In A Non-Profit Conservative Christian Business, Dawn Marie Kruger

Electronic Theses and Dissertations

This paper is an inquiry into the discourse styles of men and women who work together in a conservative Protestant Christian business. Many conservative Protestant Christian churches teach that the Bible forbids women from holding positions of authority over men. Yet in the communications department of this particular business, women fill the top three management positions, supervising a mixed-gender staff of 15. Research has shown that men and women subconsciously use language markers that indicate personal attitudes toward the same and the opposite genders. This research project draws on that information while it analyzes the oral and electronic discourse of …

How Does The Use Of Picture Books During Instruction Improve Student Word Choice In Writing?, Laurie Anne Mcadams

Electronic Theses and Dissertations

The purpose of my research was to determine how the use of picture books during instruction would improve student word choice in writing. Donald Graves (2003), a renowned researcher in the teaching of writing, states, "All children need . . . to be surrounded with poetry, stories, information books, biography, science and history, imaginative and factual books." Graves' research presents successful classroom instruction when teachers incorporate literature as a fundamental part of their reading and writing instruction. Likewise, Susan Anderson McElveen and Connie Campbell Dierking (2000) conducted a study with their students using picture books as "precise examples" to teach …

Spectral Signature Modification By Application Of Infrared Frequency-Selective Surfaces, Brian Monacelli

Electronic Theses and Dissertations

It is desirable to modify the spectral signature of a surface, particularly in the infrared (IR) region of the electromagnetic spectrum. To alter the surface signature in the IR, two methods are investigated: thin film application and antenna array application. The former approach is a common and straightforward incorporation of optically-thin film coatings on the surface designated for signature modification. The latter technique requires the complex design of a periodic array of passive microantenna elements to cover the surface in order to modify its signature. This technology is known as frequency selective surface (FSS) technology and is established in the …

A Dialectical Methodology For Decision Support Systems Design, Wafa Elgarah

Electronic Theses and Dissertations

As organizations continue to grow in size, reaching global proportions, they have ever increasing impacts on their environments. Some believe that a much broader array of concerns should be brought into organizational decision-making processes, including greater consideration of social, political, ethical and aesthetic factors (Mitroff and Linstone, 1993; Courtney, 2001). Decision environments such as these are decidedly "wicked" (Rittel and Webber, 1973). Designing decision support systems in such environments where there is a high level of interconnectedness, issues are overlapping and a multiplicity of stakeholders is involved, is a very complex task. In this dissertation a methodology for the development …

Assessment And In Vitro Repair Of Damaged Dna Templates From Forensic Stains, Ashley Hall

Electronic Theses and Dissertations

DNA extracted from biological stains is often intractable to analysis. This may due to a number of factors including a low copy number (LCN) of starting molecules, the presence of soluble inhibitors or damaged DNA templates. Remedies may be available to the forensic scientist to deal with LCN templates and soluble inhibitors but none presently exist for damaged DNA. In fact, only recently has the biochemical nature, the extent of DNA damage in physiological stains and the point at which the damage inflicted upon a particular sample precludes the ability to obtain a genetic profile for purposes of identification been …

A Comparison Of The Leadership Roles Of Public And Private Elementary School Principals, Caron Staples

Electronic Theses and Dissertations

Public school principals' role requirements have undergone changes during standards-based reform and accountability (Copland, 2001; Daresh, 1998; Jones, 1999; Lashway, 2003a). This study was designed to identify the leadership role focus and behaviors of public school principals who were attempting to meet the challenges of this movement and to provide valuable information about the effects of accountability reforms on school leadership. Public school principals were subject to the mandated policy initiatives associated with the accountability movement. Private school principals, or lower school heads, were not subject to these federal and state policy reforms. The leadership role and behaviors of public …

The Unraveling Of America's Education System, Amy Wright

Electronic Theses and Dissertations

This research project takes a critical look at the data that drives educational policies. This research project looks at the data at the national level as well as the regional levels in order to see if the data is functioning differently at the different levels. All data has been collected from the National Assessment of Educational Progress (NAEP) through reports published by the American Legislative Exchange Council (ALEC), an independent committee assigned to collect and analyze educational data. The data was collected and then correlations were run between the expenditures per pupil, number of pupils per teacher, standardized test scores, …

A Probe Into Learning Approaches And Attitudes Towards Technology-Enhanced Language Learning (Tell) In Chinese Instruction, Rong Yuan

Electronic Theses and Dissertations

This quantitative research, carried out at the military environment at the Defense Language Institute investigated whether learning approaches could predict learners' language proficiency and learners' attitude towards technology-enhanced language learning (TELL). In addition, it also examined whether learners' demographic factors, such as age, educational backgrounds, prior experience in foreign language learning and in TELL as well as their ability to use PC and the World Wide Web could predict the above mentioned language proficiency and attitude. A cluster sampling method was adopted and data was collected in four Chinese departments at the institute. Both the learning approaches inventory ASSIST and …

Announcements

The Writing Center Journal

No abstract provided.

History Of Clcweb: Comparative Literature And Culture, Steven Tötösy De Zepetnek

CLCWeb Library

No abstract provided.

Mixed Signals And Subtle Cues: Jury Independence And Judicial Appointment Of The Jury Foreperson, Andrew Horwitz

Catholic University Law Review

No abstract provided.

Controller Design And Web-Based Simulation For A Pasteurisation Process, Luis Torres

Theses

The basic PID controller remains the most commonly used automatic feedback control technique in industry. Many tuning techniques exist for this controller and the use of tuning rules remains very popular, both in industry and academia. This thesis is concerned with the practical evaluation of a selected number of PID tuning rules. The rules were to be evaluated on an industrial pilot-scale milk pasteurisation process. However, most of these rules could not be tested on the real plant as the industrial distributed control system was quite inflexible and did not permit many of the more advanced PID structures e.g. two-degree …

Multispectral Camera Control And High Speed Image Transfer Using Lossless Hardware Compression, Padraig Ryan

Theses

This work provides extensions of a standard D-Cam/Firewire digital camera platform for use within a multispectral imaging setting and includes real-time lossless image compression targeted at the re-configurable environment of an FPGA. The control and image acquisition structures specific to multispectral systems are detailed with respect to an embedded firmware solution, complementary host PC software driver routines, and camera hardware control infrastructures. The augmentation of the standards based implementation is discussed without compromising compliance with underlying specifications. The mandate for image data acquisition includes glue logic to efficiently transmit data via a high-speed communications pipe, IEEE - 1394 in this …

An Investigation Into The Role Of Social Marketing In Preventing Adolescent Drinking., Cian Long

Theses

In recent years, there has been increased concern about the level of alcohol abuse by Irish teenagers. Countless studies have shown that underage drinking is now becoming an epidemic. Up to 100 million young people around the globe are alcohol dependent and another 400 million drink to excess. Research has shown that early onset of alcohol use can lead to alcohol dependency, violence, absenteeism, crime and subsequent health problems. It is estimated that alcohol related problems cost the Irish economy €2.65 billion in 2003. Unfortunately, this alcohol problem is not going to vanish or disappear. Alcohol has become Ireland’s number …

A Case For Constructivism In Workplace Education : Substantiated With The Design, Development, Implementation And Evaluation Of A Collaborative And Resource-Based Web Learning Environment, Carmel Burke

Theses

This thesis addresses the role of constructivism in workplace education, where organisations are currently going through a time of great change. The study starts with questioning the suitability of information and communication technology in current web based learning in the workplace. Organisations increasingly require professionals to possess knowledge in a dynamic way in order to deal with change and just-in-time demands. The research is firmly anchored in learning theories as they apply to workplace education and particularly as they apply to collaborative and resource-based web learning. An extensive literature review is produced in order to establish a theoretical starting point …

Audience Is Everything, Joyce Benvenuto

Language Arts Journal of Michigan

No abstract provided.

Peer Review Matters: Creating Effective Peer Review, M. Kilian Mccurrie

Language Arts Journal of Michigan

No abstract provided.

Writing Journalistically To Learn In Any Classroom, Jackie Folkert

Language Arts Journal of Michigan

No abstract provided.

Best Practice Blogging: Connecting What We Know To What's Next, Robert Rozema

Language Arts Journal of Michigan

No abstract provided.

An Investigation Into The Role Of Social Marketing In Preventing Adolescent Drinking., Cian Long

Theses

In recent years, there has been increased concern about the level of alcohol abuse by Irish teenagers. Countless studies have shown that underage drinking is now becoming an epidemic. Up to 100 million young people around the globe are alcohol dependent and another 400 million drink to excess. Research has shown that early onset of alcohol use can lead to alcohol dependency, violence, absenteeism, crime and subsequent health problems. It is estimated that alcohol related problems cost the Irish economy €2.65 billion in 2003. Unfortunately, this alcohol problem is not going to vanish or disappear. Alcohol has become Ireland’s number …

Why Is Elder Abuse Overlooked? : Media And Ageism, Skye N. Folkert

Undergraduate Theses and Senior Projects

No abstract provided.

Pseudo-Triangulations, Rigidity And Motion Planning, Ileana Streinu

Computer Science: Faculty Publications

This paper proposes a combinatorial approach to planning non-colliding trajectories for a polygonal bar-and-joint framework with n vertices. It is based on a new class of simple motions induced by expansive one-degree-of-freedom mechanisms, which guarantee noncollisions by moving all points away from each other. Their combinatorial structure is captured by pointed pseudo-triangulations, a class of embedded planar graphs for which we give several equivalent characterizations and exhibit rich rigidity theoretic properties. The main application is an efficient algorithm for the Carpenter's Rule Problem: convexify a simple bar-and-joint planar polygonal linkage using only non-self-intersecting planar motions. A step of the algorithm …

Haemophilus Influenzae Modulins In Chronic Obstructive Pulmonary Disease Airway Inflammation, Gitanjali Kundu

Master's Theses and Doctoral Dissertations

Nontypeable H. influenzae (NTHi) causes repeated respiratory infections characterized by a brisk inflammatory response that results in the expression and secretion of proinflammatory cytokines. We hypothesized that secreted and cell asssociated NTHi proteins mediate cellular interactions with respiratory epithelial cells, leading to the production of interleukin (IL)-8. We exposed human tracheal epithelial cells to H. influenzae strain Rd and compared the resulting profiles of IL-8 secretion. Putative H. influenzae Rd modulins were enriched from culture supernatant fluid. Proteome analysis of the enriched fractions revealed 27 candidate proteins. Further analysis of four proteins, ClpB, OmpP2, TonB, and RelA, suggested a potential …

Aspects Of Production For Clerodendrum As Potted Flowering Plants, Annina Delaune

LSU Master's Theses

The effect of growth regulators gibberellic acid (Pro-Gibb™), daminozide (B-Nine™), ancymidol (A-Rest™) and paclobutrazol (Bonzi™) were evaluated on species of Clerodendrum grown as flowering pot plants. Studies on photoperiod and post-production longevity were also included. Experiments were conducted on C. bungei, C. thomsoniae, C. ugandense, C. phillippinum, C. paniculata and C. speciosissimum in polycarbonate greenhouses. For C. thomsoniae the best growth control was achieved by applying paclobutrazol and ancymidol drench at a rate of 1.0 mg a.i. /pot. For C. ugandense, the most appropriate application rate of PGR was paclobutrazol drench at 5 to 15 mg a.i./pot. C. bungei did …

Curvature Of The Weinhold Metric For Thermodynamical Systems With 2 Degrees Of Freedom, Manuel Santoro, Serge Preston

Mathematics and Statistics Faculty Publications and Presentations

In this work the curvature of Weinhold (thermodynamical) metric is studied in the case of systems with two thermodynamical degrees of freedom. Conditions for the Gauss curvature R to be zero, positive or negative are worked out. Signature change of the Weinhold metric and the corresponding singular behavior of the curvature at the phase boundaries are studied. Cases of systems with the constant C_v, including Ideal and Van der Waals gases, and that of Berthelot gas are discussed in detail.

Aterf4 And Aterf7 Are Involved In The Abscisic Acid Signaling Response In Arabidopsis., Zhen Yang

Graduate Theses, Dissertations, and Problem Reports (ETD)

ERFs (ethylene-responsive element binding factors) belong to a large family of transcription factors that are found exclusively in plants. A small subfamily of ERF proteins can act as transcriptional repressors. The Arabidopsis genome contains eight ERF repressors, namely AtERF3, AtERF4, AtERF7, AtERF8, AtERF9, AtERF10, AtERF11, and AtERF12. The different ERF repressors show differential expression, suggesting that they may have different function. The expression of AtERF4 can be induced by ethylene, jasmonic acid, or abscisic acid. AtERF7 can be induced by abscisic acid only. Using a transient expression system, we demonstrated that AtERF4 and AtERF7 can function as transcriptional repressors. By …

Effect Of Bioactive Particulates And Lipopolysaccharide On Immune Regulation Via Class A Scavenger Receptor And Toll -Like Receptor 4, Rong Wang

Graduate Student Theses, Dissertations, & Professional Papers

No abstract provided.