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2006

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Estrogenic Activity In The Environment: Municipal Wastewater Effluent, River, Ponds, And Wetlands, Nancy W. Shappell Jan 2006

Estrogenic Activity In The Environment: Municipal Wastewater Effluent, River, Ponds, And Wetlands, Nancy W. Shappell

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

Estrogenic activity of regional water samples was evaluated. Samples obtained from wetlands and ponds involved in various agricultural land uses, from three river sites over four seasons, and from municipal wastewater effluent held in storage lagoons were evaluated. The estrogen- responsive cell line MCF-7 BOS was used in the E-screen assay to determine 17β-estradiol equivalents (E2 Eq) of water samples extracted by solid-phase extraction. Estrogenic activity in surrounding wetlands and ponds from different land uses was not different, with 10-12 M E2 Eq (0.3 ppt). Estrogenic activity of Red River samples was within the same range as wetland–pond …


Un-Ionized Ammonia Exposure In Nile Tilapia: Toxicity, Stress Response, And Susceptibility To Streptococcus Agalactiae, Joyce J. Evans, David J. Park, Gregg C. Brill, Phillip H. Klesius Jan 2006

Un-Ionized Ammonia Exposure In Nile Tilapia: Toxicity, Stress Response, And Susceptibility To Streptococcus Agalactiae, Joyce J. Evans, David J. Park, Gregg C. Brill, Phillip H. Klesius

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

A series of experiments were conducted to determine the toxicity, behavior, blood glucose stress response, and disease susceptibility in Nile tilapia Oreochromis niloticus following un-ionized ammonia (UIA) exposure. The acute toxicity of un-ionized ammonia to Nile tilapia was measured in a 96-h static test. The median lethal concentration (LC50) was 1.46 mg/L UIA at 24 and 48 h postexposure, 1.33 mg/ L at 72 h postexposure, and 0.98 mg/L at 96 h postexposure. No mortalities were noted in unexposed (0 mg/ L) control fish or fish exposed to 0.5 mg/L UIA. However, 93–100% mortalities were observed within 24 h among …


International Shipping Of Fumonisins From Maize Extracts On C18 Sorbent, R. T. Riley, O. A. Torres, E. Palencia Jan 2006

International Shipping Of Fumonisins From Maize Extracts On C18 Sorbent, R. T. Riley, O. A. Torres, E. Palencia

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

Fumonisins are mycotoxins found in maize. In developing countries, the resources required for analysis are often lacking, and the shipping of maize between countries can be difficult since the importation of plant materials requires permits/ inspection to prevent the entry of pests that frequently infest maize. A simple, safe and legal method for shipping maize extracts to the USA was needed to conduct a survey of fumonisins in Central America. The objective was to develop a method for isolating and shipping maize extracts for fumonisin analysis so as to facilitate a survey of fumonisin exposure. The results indicate that fumonisins …


Improvements In Channel Catfish Growth After Two Generations Of Selection And Comparison Of Performance Traits Among Channel Catfish, Blue Catfish, And Hybrid Catfish Fingerlings In An Aquarium Rack System, Brian C. Small Jan 2006

Improvements In Channel Catfish Growth After Two Generations Of Selection And Comparison Of Performance Traits Among Channel Catfish, Blue Catfish, And Hybrid Catfish Fingerlings In An Aquarium Rack System, Brian C. Small

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

A 9-week growth study was conducted to compare the fingerling performance of two genetic groups of channel catfish Ictalurus punctatus (United States Department of Agriculture [USDA] 103 and USDA303) with that of blue catfish I. furcatus and their hybrid in an aquarium rack system. Fish of approximately 20 g were randomly selected from multifamily populations and acclimated to the aquarium rack system for 2 weeks prior to the start of the 9-week study. Differences in growth indices, feed and protein efficiency, nitrogen retention, whole-body proximate composition, and plasma cortisol levels were determined at the completion of the study. The USDA303 …


Are You Ready To Provide Instruction Via Interactive Satellite Delivery Technology, John E. Turner, Philip A. Reed Jan 2006

Are You Ready To Provide Instruction Via Interactive Satellite Delivery Technology, John E. Turner, Philip A. Reed

STEMPS Faculty Publications

A difficulty for faculty new to teaching at a distance is being able to visualize the scope of needed skills and tasks that will be required of them. The purpose of this project was to provide an empirically-based, self-administered skill enhancement guide for new distance education faculty teaching via interactive satellite broadcast. A modified Delphi approach was used to survey 18 faculty members experienced in distance education from the 6 colleges at a major eastern university. Respondents created a validated task list in phase 1 and determined task criticality and sequencing of task learning in phase 2.


Fumonisin Production In The Maize Pathogen Fusarium Verticillioides: Genetic Basis Of Naturally Occurring Chemical Variation, Robert H. Proctor, Ronald D. Plattner, Anne E. Desjardins, Mark Busman, Robert A. E. Butchko Jan 2006

Fumonisin Production In The Maize Pathogen Fusarium Verticillioides: Genetic Basis Of Naturally Occurring Chemical Variation, Robert H. Proctor, Ronald D. Plattner, Anne E. Desjardins, Mark Busman, Robert A. E. Butchko

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

Fumonisins are polyketide-derived mycotoxins produced by the maize pathogen Fusarium verticillioides. Previous analyses identified naturally occurring variants of the fungus that are deficient in fumonisin C-10 hydroxylation or that do not produce any fumonisins. In the current study, gene deletion and genetic complementation analyses localized the C-10 hydroxylation deficiency to a cytochrome P450 monooxygenase gene in the fumonisin biosynthetic gene (FUM) cluster. Sequence analysis indicated that the hydroxylation deficiency resulted from a single nucleotide insertion that caused a frame shift in the coding region of the gene. Genetic complementation localized the fumonisinnonproduction phenotype to the polyketide synthase …


Laboratory Evaluation Of Avian Odors For Mosquito (Diptera: Culicidae) Attraction, S. A. Allan, Ulrich R. Bernier, D. L. Kline Jan 2006

Laboratory Evaluation Of Avian Odors For Mosquito (Diptera: Culicidae) Attraction, S. A. Allan, Ulrich R. Bernier, D. L. Kline

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

Attraction of Culex quinquefasciatus Say, Culex tarsalis Coquillett, Culex nigripalpus Theobald, and Aedes aegypti (L.) to avian and other host odors was investigated in a dual-port olfactometer. Although attraction to a human arm was high for Ae. aegypti (>80%) and low for all Culex spp. (<25%), all species responded similarly to a chicken (55.3-73.6%). Responses of Ae. aegypti, Cx. quinquefasciatus, and Cx. nigripalpus to feathers were low (<20%) but greater than to controls. There was no difference in attraction of Cx. tarsalis to feathers or controls. Responses to CO2 (5 ml/min) were low for all species (<15%) except Cx. tarsalis, which were moderate (24.5%). When feathers were combined with CO2, the resulting attraction was additive or lower than responses …


Spectrum 2006, Saint Mary's College Of California Jan 2006

Spectrum 2006, Saint Mary's College Of California

The Undergraduate Spectrum

No abstract provided.


Does Hope Vi Deep-Six The Poor? Analyzing The Effects Of Displacement Former Residents Of Distressed Public Housing In A Mid-Sized Southern City, David Zeller Jan 2006

Does Hope Vi Deep-Six The Poor? Analyzing The Effects Of Displacement Former Residents Of Distressed Public Housing In A Mid-Sized Southern City, David Zeller

Electronic Theses and Dissertations

Do downtown revitalization efforts detrimentally affect people who are displaced? HUD's HOPE VI grant program provides local housing authorities with funds to leverage private investment to demolish blighted, severely distressed public housing units and replace them with mixed-use, mixed-income units. In 2002, the OHA secured an $18 million grant to redevelop a public housing project then known as Carver Court. 212 units of public housing were razed and former public housing residents were displaced to make way for redevelopment. Interviews with 55 former residents of Carver Court are analyzed to determine the self-reported effects of the local implementation of federal …


Three College Roommates Dream To Change The World, John Donnelly Jan 2006

Three College Roommates Dream To Change The World, John Donnelly

History Faculty Research and Publications

No abstract provided.


Nietzsche, Truth, And The Horror Of Existence, Philip J. Kain Jan 2006

Nietzsche, Truth, And The Horror Of Existence, Philip J. Kain

Philosophy

This article1 will argue that at the center of Nietzsche's vision lies his concept of the "terror and horror of existence."2 As he puts it in The Birth of Tragedy: King Midas hunted in the forest a long time for the wise Silenus .... When Silenus at last fell into his hands, the king asked what was the best and most desirable of all things for man. Fixed and immovable, the demigod said not a word, till at last, urged by the king, he gave a shrill laugh and broke out into these words: "Oh, wretched ephemeral race, …


Development And Evaluation Of A Single-Session Expectancy Challenge Intervention To Reduce Alcohol Use Among Heavy Drinking College Students, Hoyee Lau Jan 2006

Development And Evaluation Of A Single-Session Expectancy Challenge Intervention To Reduce Alcohol Use Among Heavy Drinking College Students, Hoyee Lau

Electronic Theses and Dissertations

While overall rates of college student drinking have declined slightly since 1980, extreme forms of drinking are escalating. A comprehensive review of all aspects of alcohol use among college students completed by a panel of scientists and college presidents concluded that very few approaches for dealing with student drinking can be considered empirically validated, and they strongly encouraged additional efforts to develop and validate effective strategies. Expectancy challenge approaches designed to reduce risky drinking through changing key expectancies have been identified as one of the few validated strategies, but this approach has not been developed into a format that is …


2006 Wildflower Of The Year: Spicebush, Lindera Benzoin, W. John Hayden Jan 2006

2006 Wildflower Of The Year: Spicebush, Lindera Benzoin, W. John Hayden

Biology Faculty Publications

Spicebush is a multistemmed deciduous shrub that grows to a height of one to three meters. Young stems are delicate and may be smooth or finely hairy. Leaves are alternate and simple, with an elliptic to obovate blade that tapers at both the base and apex and is bounded by a smooth margin. Examined closely, the margin will reveal a series of fine hairs that project directly out from the leaf edge. In size, leaves are neither remarkably large nor small; they range from one to six inches in length and up to about two and a half inches wide, …


Public Reasoning About Criminal Justice: The Role Of Victim, Offence, And Offender Characteristics And Victim-Offender Relationships. Public Reasoning About Criminal Justice: Effects Of Victim Age And Victim-Offender Relationship, Donald Foy Jan 2006

Public Reasoning About Criminal Justice: The Role Of Victim, Offence, And Offender Characteristics And Victim-Offender Relationships. Public Reasoning About Criminal Justice: Effects Of Victim Age And Victim-Offender Relationship, Donald Foy

Theses : Honours

The formulation and amendment of legislation which forms the basis for the operation and administration of the Australian criminal justice system may be the role given to elected government officials but it is the citizens who elect them who bear ultimate responsibility. The way that members of the public reason about criminal justice issues therefore has the capacity to greatly influence decision making in this area. This paper will review some of the research which has attempted to explain the influence that several variables may have on the way that people reason about criminal justice. These research topics include fear …


Anglo-Australians' Attitudes Towards Multiculturalism And Beliefs About Ethnic Groups, Tina Charles Jan 2006

Anglo-Australians' Attitudes Towards Multiculturalism And Beliefs About Ethnic Groups, Tina Charles

Theses : Honours

Australia's policy of multiculturalism was adopted in 1978. However, recent events in Australia have suggested some public dissent concerning multiculturalism, particularly among members of the dominant Anglo-Australian culture. Previous research in the Netherlands has found that essentialist beliefs about ethnic minority groups are related to negative attitudes towards multiculturalism within the dominant culture. This study was designed to qualitatively explore Anglo-Australians' attitudes towards multiculturalism and their beliefs about ethnic minority groups. A total of 11 participants were interviewed. Results showed that the participants expressed both positive and negative attitudes towards multiculturalism, and essentialist and non-essentialist beliefs about ethnic groups. The …


Interhemispheric Modulation Of Corticomotor Excitability Following I-Wave Periodicity Transcranial Magnetic Brain Stimulation (Itms), Lucy Catherine Millar Jan 2006

Interhemispheric Modulation Of Corticomotor Excitability Following I-Wave Periodicity Transcranial Magnetic Brain Stimulation (Itms), Lucy Catherine Millar

Theses : Honours

AIMS: Transcranial Magnetic Stimulation (TMS) has been recently demonstrated to have potential therapeutic benefits by promoting cortical plasticity through modulation of corticospinal excitability. We have previously shown in healthy adult subjects that paired-pulse TMS (1.5ms ISI) applied over Ml at 0.2Hz for 15min (known as iTMS), can raise corticospinal excitability for a period (~10min) that outlasts the intervention. Since interhemispheric changes in corticomotor excitability are considered to have fundamental importance in the control of voluntary movement, and recovery of motor function following unilateral damage, importance is placed on understanding the mechanisms involved. The aims of the current study were therefore …


The Functional Significance Of Multiple Pax7 Isoforms, Chantel L. Burchill Jan 2006

The Functional Significance Of Multiple Pax7 Isoforms, Chantel L. Burchill

Theses : Honours

The Pax7 gene is critical for specification of both neurons in the mid-brain and skeletal muscle satellite cells. Several alternate transcripts are transcribed from the single gene. Previous studies have shown that the resultant alternate Pax7 isoforms differ in the structure of their paired domain (a DNA-binding domain that influences target gene selection), yet the functional significance of each isoform for specification of neurogenic and myogenic cell types remains unknown. Although previous studies have identified the presence of multiple alternate Pax7 transcripts in both neurogenic and myogenic cell lines, more research is necessary to understand the functional significance of the …


The Effects Of Light Reduction Treatments On Mobile Epifaunain An Amphibolis Griffithii (Black) Den Hartog Seagrass Ecosystem, Helen Barwick Jan 2006

The Effects Of Light Reduction Treatments On Mobile Epifaunain An Amphibolis Griffithii (Black) Den Hartog Seagrass Ecosystem, Helen Barwick

Theses : Honours

One of the main anthropogenic disturbances to seagrass meadows in Australia is reduction in light availability, through nutrient enrichment or suspended sediments. Dredging can create suspended sediment plumes from the expulsion of particulates into the water column and in tum reduces light penetration to seagrass ecosystems. Preliminary investigations have demonstrated that light reduction for different intensities and durations results in reduced seagrass and epiphytic algae biomass. The main aim of this study was to determine the effects of different intensities and durations of light reduction on epifaunal assemblages in Amphibolis griffithii seagrass meadows in Jurien Bay, Western Australia. This was …


Sustainability And Company Annual Financial Reporting, Mirela Filipovic Jan 2006

Sustainability And Company Annual Financial Reporting, Mirela Filipovic

Theses : Honours

This study had two mam objectives. Firstly to measure the level and type of sustainability reporting in companies using the Global Reporting Initiative (GRI) Index. Secondly, to investigate the key characteristics of Australian listed companies that explain the extent of voluntary sustainability information within their annual reports. Based on the positive accounting theory framework and the review of literature six testable hypotheses were developed. The six directional hypothesis developed were related to two aspects of agency and political costs and included ownership diffusion, leverage, audit by big four audit firm, size, profitability and industry type. A stratified sample of 450 …


Use Of A Weighted Matching Algorithm To Sequence Clusters In Spatial Join Processing, Husen Husen Jan 2006

Use Of A Weighted Matching Algorithm To Sequence Clusters In Spatial Join Processing, Husen Husen

Theses : Honours

One of the most expensive operations in a spatial database is spatial join processing. This study focuses on how to improve the performance of such processing. The main objective is to reduce the Input/Output (I/O) cost of the spatial join process by using a technique called cluster-scheduling. Generally, the spatial join is processed in two steps, namely filtering and refinement. The cluster-scheduling technique is performed after the filtering step and before the refinement step and is part of the housekeeping phase. The key point of this technique is to realise order wherein two consecutive clusters in the sequence have maximal …


An Exploratory Study Of Executive Hubris And Its Effect On How Chief Executive Officers In Small To Medium Enterprises Make Strategic Management Decisions, A. S. Parker Jan 2006

An Exploratory Study Of Executive Hubris And Its Effect On How Chief Executive Officers In Small To Medium Enterprises Make Strategic Management Decisions, A. S. Parker

Theses : Honours

This exploratory study examined the nature of the recently conceptualised notion of executive hubris; and in particular the effect it may have on how chief executive officers in small to medium sized enterprises make their strategic management decisions. It was designed to explore executive hubris and strategic decision making in a limited sample of executives. On this basis the results are limited to this study and are not generalisable. A core aim of the study however; was to test qualitatively and quantitatively in a fundamental, exploratory way; Hambrick and Hiller's (2005) propositions that executive hubris has an effect on how …


A Comparison Of Nurses' Clinical Judgement And The Short Form-Mini Nutritional Assessment Tool In Assessing The Nutritional Status Of Older Patients In An Acute Clinical Setting, Roger Shreeve Jan 2006

A Comparison Of Nurses' Clinical Judgement And The Short Form-Mini Nutritional Assessment Tool In Assessing The Nutritional Status Of Older Patients In An Acute Clinical Setting, Roger Shreeve

Theses : Honours

Decreased nutritional status of older hospitalised patients has been identified as a significant problem. The prevalence of malnutrition in older people has been reported to be between 17% and 65% in acute hospital settings. This has led to the recognition of a need for a valid instrument to adequately assess nutritional status. Tools developed to date still require much time and expertise to implement, limiting their use within the practical setting. Nurses are in an ideal position to conduct nutritional assessments. They possess clinical knowledge which can be utilised to provide individualised and timely assessment. To. date, the literature does …


Empowering International And Culturally Diverse Honours And Project Students Through Mentoring Activities, L J. Armstrong, S Singh Jan 2006

Empowering International And Culturally Diverse Honours And Project Students Through Mentoring Activities, L J. Armstrong, S Singh

EDU-COM International Conference

This paper reports on an initiative to develop a successful school based student mentoring program in the context of a Computer Science based school which has a high proportion of international and culturally diverse student population. A review of literature was made of three areas of research related to mentoring and peer support. This provided evidence for the role of mentoring and peer support in empowering student learning, with particular emphasis on how mentoring can provide both social and academic support; on the role of mentoring in different contexts; within the Computer Science field and within an international and culturally …


Engaging Diversity Through Brain Hemispheric Orientation (Bho) Among College Students: Some Implications On Their Mathematics Performance., Flerida C. Alvaro Jan 2006

Engaging Diversity Through Brain Hemispheric Orientation (Bho) Among College Students: Some Implications On Their Mathematics Performance., Flerida C. Alvaro

EDU-COM International Conference

This study primarily sought empirical results to be used for a more complicated future research undertaking. This study categorized the students of the College of Teacher Education according to their left, right, or confluent brain hemispheric orientation through a preference scale. Also, these college students were classified with respect to their low, average, or high level of Mathematics performance basing from the grades in Mathematics subjects. Diversity in college students‘ gender, age, and ethnicity were analysed for their effect on the brain hemispheric orientation as well as their effect on their level of Mathematics performance. Likewise, this study investigated the …


Mission (Im-)Possible? Increasing The Participation Of Female Students In University Computing Courses, Iwona Miliszewska, Anne Venables, Grace Tan Jan 2006

Mission (Im-)Possible? Increasing The Participation Of Female Students In University Computing Courses, Iwona Miliszewska, Anne Venables, Grace Tan

EDU-COM International Conference

In 1990 the Australian Federal government set a target for a 40% enrolment rate of females in all non-traditional areas of study including computer science. In view of this target, the low enrolment of females in computer science at Victoria University is a persisting concern: enrolment rates have continued to decline from 30% in the early 1990s to less than 20% in recent years, despite significant attempts to arrest the decline by introducing annual student recruitment events such as school visits, career nights, and University Open Days. This suggested that the issue of encouraging females to study computing needed to …


The Utilization Of Portfolio In The Teaching/Learning On Seminar In Issues And Trends In Nursing Profession Subject, Pinya Noophakdee, Chonggol Surasvadi, Pongrat Ratanathai Jan 2006

The Utilization Of Portfolio In The Teaching/Learning On Seminar In Issues And Trends In Nursing Profession Subject, Pinya Noophakdee, Chonggol Surasvadi, Pongrat Ratanathai

EDU-COM International Conference

The objectives of this study were to compare the students‘ attitudes towards portfolios in Teaching and Learning, abilities in clinical problem-solving before and after seminar, determine the relationship of students‘ abilities in seminar between their peer groups‘ and the instructors, determine the relationship of students‘ seminar report writing abilities as evaluated by the instructors and themselves, and to study students‘ abilities on working process. The samples were 80 second-year students in the continuing program. The research tools were composed of 2 scales, 4 assessment forms, and MEQ test. The data were analysed by SPSS/FW program using mean, SD, Paired t-test …


Project Priyadarshini: Empowering Students And Teachers To Be Agents Of Social Change, Vasundhara Padmanabhan Jan 2006

Project Priyadarshini: Empowering Students And Teachers To Be Agents Of Social Change, Vasundhara Padmanabhan

EDU-COM International Conference

Colleges and universities were regarded as ―Ivory Towers‖ kept aloof from the society and its life. But gradually it is being realised that teachers of higher education cannot do justice to their roles and responsibilities if they do not contribute their might to the realization of national goals, fulfilment of their social commitments and be the agents of social change. In our B Ed College, the students are provided opportunities to work with the community in collaboration with NGOs. In addition to this, last year, a concentrated effort was made to empower both the teachers and the student teachers by …


English Learning Support For Working Staff: A Case Study Of Bimonthly Bilingual Posters For Staff Working In An Academic University, Suthee Ploisawaschai Jan 2006

English Learning Support For Working Staff: A Case Study Of Bimonthly Bilingual Posters For Staff Working In An Academic University, Suthee Ploisawaschai

EDU-COM International Conference

The purpose of this study was to examine the impacts of providing English learning support for non-academic staff working in King Mongkut‘s University of Technology Thonburi. Staffs working in fields other than academia lack an opportunity to practice English. To do this, a series of bimonthly bilingual poster called KMUTT: I‘m Learning English was proposed. First released in March, the posters appeared twice a month in restrooms and elevators, as well as on the website. They covered such topics as news, fables, and conversations at work, sayings, and trivia. The researcher examined the impacts of this approach by surveying staff …


Improving Community Water Conservation Behaviour In Chachoengsao, Thailand, Kuakul Sathapornvajana, Lynne Cohen, Neil Drew, Julie Ann Pooley Jan 2006

Improving Community Water Conservation Behaviour In Chachoengsao, Thailand, Kuakul Sathapornvajana, Lynne Cohen, Neil Drew, Julie Ann Pooley

EDU-COM International Conference

The issue of water supply throughout the world is of concern for many reasons. A major factor is water pollution by industry, agriculture and residential sectors. Less than 3% of water is fresh and potable, while the remainder is saline. It is projected that by the year 2025, two-thirds of the world‘s population will encounter moderate to severe water shortages. As a result of unsustainable development over the past decade, Thailand has faced pollution problems as well as the depletion of many natural resources. These problems have impacted the country‘s main rivers (Chaopraya River, Thachine River, and the Bangpakong River), …


Iternational Postgraduate Student Experience: How Can We Enhance Transition Management?, K Singh, L Armstrong Jan 2006

Iternational Postgraduate Student Experience: How Can We Enhance Transition Management?, K Singh, L Armstrong

EDU-COM International Conference

Within the broad scope of literature addressing the issue of student experience very limited attention has been given to examining the particular issues impacting international students. This paper draws attention to transition as an aspect impacting the international postgraduate (IP) student experience within a School of Computer and Information Science with a high proportion of IP students (65-75%). Literature relating to both, first year experience and international onshore education provided a frame of reference for a pilot survey (N=58) investigating student perceptions and attitudes on choice of study destination; academic orientation, application and coping; future orientation; social integration and belonging; …