Digital Commons Network^™

Toxicity And Biological Effects Of Azo Dyes On Caenorhabdits Elegans, Dominique Sapp

Theses (Pre-2016)

Azote (AZO) dyes are a large class of synthetic organic dyes that contains in its structure an azo group, R-N=N-R', and make up most of the commercial dyes used in clothes and some in food. Some of these dyes have been found to cause carcinogenesis in different specimens. Caenorhabditis elegans is used to test the toxicity of several azo dyes at 50􁪽g/mL (50 ppm) and 20 ug/ml. (20 ppm) concentrations through bioassay. The brood size and life span are also determined placing the C. elegans onto Nematode Growth Media (NGM) agar that contains the concentrations of the highly toxic azo …

The Choral Music Of Allen Henry Koepke (1939–2012) With A Conductor's Special Focus On The Preparation Of His Seminal Work, Missa Brevis, Keith J. Curington

Glenn Korff School of Music: Dissertations, Theses, Student Creative Work, and Performances

Although American choirs have been performing Allen Koepke’s compositions since 1973 and his music is witnessing greater and greater international appeal, especially in Asia, academic writings about the composer and his contribution to the choral art have been absent. This document examines Missa Brevis, the seminal work by Allen Koepke, and serves as a conductor’s guide for score study and rehearsal preparation. It will address practical problems unique to the work and will suggest solutions that will ensure excellence in its performance. A biography, a complete catalogue of the composer’s large number of choral works in print, a listing …

Active Diesel Soot Measurement By Laser Opacity, Jonathan Audish, Brian Ko, Edward Ma, Travis Mcdaniel

Electrical Engineering

This project looks into understanding the concentration of soot being omitted by a diesel engine through the creation of an innovative opacity sensor. The system contains a receiver circuit implementing a photodiode, laser with wavelength of 405±10nm, and a microcontroller with analog-to-digital (A/D) converter. As the laser pulsates, the microcontroller collects and processes the data to calculate the amount of soot within the exhaust system. The opacity sensor in our tests will be used on an Isuzu 1.9 liter diesel engine. The elegant design of the system can be integrated into conventional manufacturing molding or casting processes for new exhaust …

Application Of Wireless Power For Charging The Battery Of A Wireless Mouse, Jacob Keast, Vincent Jison

Electrical Engineering

Electronic devices are a part of all modern homes, but restricted by available outlets and the hassle of wires. With the modern wireless mouse, this is also the case. When the battery is low the consumer has several options: it is replaced with a new battery, it can be recharged using a USB wire, or the mouse is placed on a charging dock. This project provides an alternative to these options and allows the mouse’s battery to be charged via wireless inductive coupling. The wireless power charging system that was implemented in this project was successful in its ability to …

Radio Link Analysis And Characterization Of Past And Future Cal Poly Cubesats, Brian Gilbert Tubb

Electrical Engineering

Cal Poly's satellites design team, PolySat, has three satellites in Low Earth Orbit (LEO) and four more planned to launch within the next two years. Radio communication of past and current orbiting satellites has been an exercise in frustration, prompting significant research into the satellite-side of the radio link by several other Senior Projects and Thesis papers. However, minimal effort has been spent on evaluating why these problems were discovered only once the satellites reached orbit. This paper details the downfalls of relying heavily on link budgets and improper long range test setups, then experimentally determines the sensitivity of PolySat's …

Lawyer: Winter 2012-2013, Seattle University School Of Law

Lawyer

• Truth, Justice, and Reconciliation: Professor Ron Slye Seeks Justice for Kenyans
• A Strong Argument: Student Argues Before Ninth District Court of Appeals
• Spy the Lie: Grad Michael Floyd Teaches Your How to Detect Lies

Analysis And Evaluation Of Existing And Novel Turbulent Dynamic Pressure Based Methods For Measuring Bridge Pier And Abutment Scour, Murray Fisher

All Dissertations

Scour is one of the most significant threats to bridge infrastructure and is the leading cause of failure within the United States. Given this risk to the nation’s transportation infrastructure, it is necessary to understand the development of scour holes around bridge piers and abutments. This can be achieved with scour monitoring, a Federal Highway Administration approved scour countermeasure. As the monitoring techniques available range from simple devices that rest on or in the channel bed to advanced scanning systems that provide a bed contour profile, a concise study of the state of the art in real time scour measurement …

The Satanic Nature Of Racist “Christianity”, Susan Peppers-Bates

Journal of the Black Catholic Theological Symposium

In this paper, Dr. Peppers‐Bates ponders the persistence of individual and institutional racism among modern‐day Christians by applying the anthropological‐psychological lens of the scholar René Girard and his concepts of mimesis and the scapegoating mechanism. The message of the Gospel is incompatible with violence and hatred, yet those who embrace racial stereotyping, even as they call themselves ‘Christians’, are deaf to it.

The Eagleville Times,Volume 10, Issue 12, Debbie Ryan

Eagleville Times

No abstract provided.

The Application Of Microteaching To Improve Teaching Skill In Medical School, Wen-Li Wang, Ying-Wei Wang

Journal of Medical Education

Purpose: In order to improve the teaching skill in lecturing in medical school, microteaching was specially applied. Teachers giving lectures to medical students were recorded and the video clips were sent to both education specialist and content specialist for evaluation. Based on the criteria of microteaching evaluation, scale analysis was carried out to provide feedback to clinical and basic medicine teachers. Method: Evaluation was based on the criteria in Zhang’s 2006 Classroom Instruction Observation Form which includes five categories: mastery of topic materials, presenting teaching materials articulately, flexibility of instructional strategies, effective class management, and sound communication skills. Statistical analysis …

A Study On The Effect Of A Scenario- Based Communication Course On Communication Ability Of Nurses, Yu-Chun Huang, Li-Ling Hsu, Suh-Ing Hsieh

Journal of Medical Education

Purpose: This study was intended to evaluate the effectiveness of a scenario-based communication course in improving nurses' communication ability. Methods: This was a two-group pretest and posttest nonequivalent quasi-experimental design in 2010 involving a total of 118 nurses. The Communication Performance Checklist (CPC) was used to examine the post-course learning outcome of the nurses. Inferential statistics analysis was performed using Mann-Whitney U test, Pearson χ2 test, Fisher's exact test, Sing Test, McNemar Test, and regression. Results: The study findings indicated significant differences between the subjects' self-assessment scores and standardized patients' assessment scores at pretest and posttest, and posttest scores were …

Perception On And Collaboration With Occupational Therapy Among Medical, Nursing, And Occupational Therapy Students: A Pilot Study In A College Of Medicine, Ling-Yi Lin, Yea-Shwu Hwang, Mei-Jin Chen-Sea, Jing-Jane Tsai, Wen-Yun Cheng, Chih-Hung Chen, Jer-Hao Chang

Journal of Medical Education

The purposes of this study are to investigate perceptions of occupational therapy (OT) among medical, nursing, and OT undergraduates and to survey their collaborative status with occupational therapists in the fieldwork. Three groups of participants were surveyed: medical students (N=60), nursing students (N=67), and OT students (N=87). The students completed a questionnaire examining (1) knowledge about the profession of OT; (2) appraisal of OT; (3) service needs from occupational therapists; and (4) the current status of teamwork practices. All students indicated that academic education was their main source of knowledge about the profession of OT. Thirty-five percent of medical students …

Student Perspectives On Narrative Approaches In A Medical Humanities Course, 'Female Role-Models In Health Care Profession', Yenyu Lily Lin, Wing P. Chan, Nen-Chung Chang

Journal of Medical Education

Background: The purposes of medical humanities courses are to foster students' personal and professional development. Conventional approaches present some challenges. For instance, the rapid pace of topic survey courses hinders students from deeply engaging with learning materials. The pre-clinical years offer limited opportunities for interacting with role-models to facilitate students' personal and professional identities. A course on ”Female Role-Models in Health Care Professions” used narrative approaches to foster students' self understanding and professional affiliation. This paper: (1) introduces these innovative teaching methods; (2) reports on students' learning experiences; and (3) discusses the implications of these teaching experiences. Materials and Methods: …

Effect Of Iron Chelators On Methemoglobin And Thrombin Preconditioning., Jing Chen-Roetling, Jesse Sinanan, Raymond F. Regan

Department of Emergency Medicine Faculty Papers

Cell loss immediately adjacent to an intracerebral hemorrhage may be mediated in part by the toxicities of extracellular hemoglobin (Hb) and thrombin. However, at low concentrations, these proteins induce tolerance to hemin and iron that may limit further peri-hematomal injury as erythrocyte lysis progresses. The mechanisms mediating these preconditioning effects have not been completely defined, but increased expression of both heme oxygenase (HO)-1 and iron binding proteins likely contributes. In the present study, we hypothesized that iron chelator therapy would attenuate this protective response. Pretreatment of cortical glial cultures (> 90 % GFAP+) with 3 μM methemoglobin (metHb) or 5 …

Limited Sampling Estimates Of Epigallocatechin Gallate Exposures In Cirrhotic And Noncirrhotic Patients With Hepatitis C After Single Oral Doses Of Green Tea Extract., Dina Halegoua-De Marzio, Walter K. Kraft, Constantine Daskalakis, Xie Ying, Roy L Hawke, Victor J. Navarro

Division of Gastroenterology and Hepatology Faculty Papers

BACKGROUND: Epigallocatechin-3-gallate (EGCG) has antiangiogenic, antioxidant, and antifibrotic properties that may have therapeutic potential for the treatment of cirrhosis induced by hepatitis C virus (HCV). However, cirrhosis might affect EGCG disposition and augment its reported dose-dependent hepatotoxic potential.

OBJECTIVE: The safety, tolerability, and disposition of a single oral dose of EGCG in cirrhotic patients with HCV were examined in an exploratory fashion.

METHODS: Eleven patients with hepatitis C and detectable viremia were enrolled. Four had Child-Pugh (CP) class A cirrhosis, 4 had Child-Pugh class B cirrhosis, and 3 were noncirrhotic. After a single oral dose of green tea extract 400 …

Hope Or Hype?: Why The Affordable Care Act's New External Review Rules For Denied Erisa Healthcare Claims Need More Reform, Katherine T. Vukadin

Buffalo Law Review

No abstract provided.

Creating A Child-Friendly Child Welfare System: Effective Early Intervention To Prevent Maltreatment And Protect Victimized Children, Elizabeth Bartholet

Buffalo Law Review

No abstract provided.

Annual Report Of Research And Creative Productions By Faculty And Staff, January To December, 2012, Research And Creative Productions Committee. Morehead State University.

Office of Research and Sponsored Programs Reports and Publications

Annual Report Of Research and Creative Productions by Faculty and Staff from January to December, 2012.

December 2012 News Releases, University Of Montana--Missoula. Office Of University Relations

University of Montana News Releases, 1928, 1956-present

No abstract provided.

Physical Demands Of Soccer: Lessons From Team Usa And Ghana Matches In The 2010 Fifa World Cup, Wycliffe W. Njororai Simiyu

Health & Kinesiology Faculty Publications and Presentations

Purpose: Distance covered and the intensity patterns of player movements using selected matches involving the national teams of United States of America and Ghana in the World Cup Soccer Tournament held in South Africa from June 11th to July 11th 2010. Methodology: A total of eight matches played by nine teams were used in the study. Team USA played against England, Slovenia, Algeria and Ghana. The national team of Ghana played against Germany, Australia, Serbia, USA and Uruguay. The eight matches comprised 12.5% of all matches played while the nine countries comprised 32% of all the tournament participating countries. Results: …

Defining Effective Programs: How To Navigate Through The Diverse Definitions, Brian Brandt

Journal of Youth Development

There are many organizations that use shared terms to describe effective programs but don’t agree on the definition of these terms. Terms such as evidence based, research-based, proven practices, and promising practices have multiple definitions amongst practitioners. Exploring the different definitions of these shared terms, by yourself or with your peers, is one way to discover how programs are defined by others. This article and links will lead you through a process to understand the variety of youth development definitions used by practitioners and challenge you to create common definitions that will lead to better discussions with others regarding the …

The Initial Development Of Child-Focused Interventions In The Treatment Of Maternal Substance Abuse And Child Neglect, Kendra Tracy

UNLV Theses, Dissertations, Professional Papers, and Capstones

This single case study focuses on the development and evaluation of child focused interventions for the treatment of child neglect and concurrent maternal substance abuse that were incorporated into Family Behavior Therapy (FBT). The participants were a mother referred by the Department of Family Services and her child. The child participated in three child focused interventions that were developed to decrease child behavior problems, increase support and communication, and prevent future neglect by strengthening the mother & child relationship. Although not a focus in this study, the mother participated in traditional FBT adult focused intervention components. The chief aim of …

Where In The World Are The Women Of Time? Women And The "Person Of The Year" Covers For Time Magazine, Krystle Lynne Anttonelli

UNLV Theses, Dissertations, Professional Papers, and Capstones

Through a content analysis of Time magazine's "Person of the Year" issue, formerly titled "Man of the Year," this thesis examines how the news magazine has reevaluated and revised the once gender suggestive title to a more inclusive title in correlation to the portrayal of women featured on the covers from both past and present. This thesis also provides background on the feminist theory in order to put into perspective the professional and intellectual growth of women throughout the decades. The supporting literature contextualizes the findings with reference to other mainstream magazines and the portrayal of women versus men featured …

Shock Attenuation In Landing, Bryon Christopher Applequist

UNLV Theses, Dissertations, Professional Papers, and Capstones

Shock attenuation (SA) has been well studied in activities such as walking and running (Chu, et al. 2004; Derrick, et al. 2004; Mercer, et al. 2003); however, there is a lack of research regarding SA during landing. Furthermore, there is lack of information regarding which structures attenuate shock. The purpose of this study was to examine SA among the leg-hip, hip-head, and leg-head segments during landing. Each subject (n=10, Age 26.3 ± 2.71 years, Height 1.68 ± 0.08 m, Mass 70.49 ± 16.03 kg) was instrumented with accelerometers at the leg, hip and forehead. Subjects then performed landings from three …

Identity And Intersectionality For Big City Mayors: A Phenomenological Analysis Of Black Women, Constance J. Brooks

UNLV Theses, Dissertations, Professional Papers, and Capstones

The role of a mayor is integral within local governance. Their leadership and influence directly effectuates outcomes for the cities over which they preside. For big city mayors, their impact extends beyond local government and into the national policy arena. The way an individual demonstrates the role of mayor can be influenced by his/her perception of their own identity. However, within the realm of academic research dedicated to mayoral leadership and African Americans in politics, Black female mayors have largely been ignored. In particular, there are no known attempts at investigating the intersection of race and gender in understanding Black …

Restoration Of Biological Soil Crust On Disturbed Gypsiferous Soils In Lake Mead National Recreation Area, Eastern Mojave Desert, Lindsay P. Chiquoine

UNLV Theses, Dissertations, Professional Papers, and Capstones

Biological soil crusts (BSCs) are sensitive to anthropogenic disturbances. Natural recovery takes many years. Active restoration decreases recovery time. Native BSC inocula, which included lichens and mosses, salvaged from gypsiferous soil habitats in Lake Mead National Recreation Area (LMNRA) in the eastern Mojave Desert were stored dry for two years and applied to disturbed soil after a road reconstruction in LMNRA and also used in laboratory experiments to test inoculation technique effectiveness. After 18 months, field results revealed positive relationships between inoculation and the presence of macroscopic BSC cover, cyanobacteria abundance, soil stability, and ammonium concentrations. Chlorophyll fluorescence monitoring of …

Evaluation Of The Tagelus® Ta 100d Sand Filter For Removing Quagga Mussel Veligers (Dreissena Rostriformis Bugensis) From Lake Water And The Effectiveness Of The Safeguard Ultraviolet Radiation System As A Biocide Against Veligers, Patricia Kathleen Delrose

UNLV Theses, Dissertations, Professional Papers, and Capstones

The Lake Mead National Recreational Area was created by the construction of the Hoover Dam during the years 1931-1936. In January 2007, the quagga mussel (Dreissena rostriformis bugensis), was found in Lake Mead. This became the first known Dreissenid species in the southwest and the only time a large water system was first infested by the quagga mussel and not the zebra mussel (Dreissena polymorpha). This invasive species has quickly spread to Lake Mohave and further down the lower Colorado River drainage. The microscopic size (70 µm or larger) of the veliger life stage makes it impossible to see with …

The Meaning Of The Lived Experience Of Nursing Faculty On A Dedicated Education Unit, Deborah Ann Demeester

UNLV Theses, Dissertations, Professional Papers, and Capstones

In 2011, 58,327 qualified applicants were denied admission to U.S. baccalaureate programs due to an inadequate number of qualified faculty, insufficient clinical placement sites, and resource constraints. Nursing faculty leaders are being challenged to increase enrollment to address a projected worsening nursing shortage and to transform prelicensure nursing education to ensure that program graduates have the nursing skills and competencies to meet the health care needs of the population.

Collaborative educational partnerships offer promising strategies to diminish the nursing faculty shortage, educate more students, and provide stable, rich learning environments. The Dedicated Education Unit (DEU) model is one of these …

Closing Up Shop: Meditations On The Departmental/Programmatic Elimination Experience, Susan Beth Donoff

UNLV Theses, Dissertations, Professional Papers, and Capstones

Departmental and programmatic eliminations represent a new paradigm in the history of American higher education. Hastened by a national economic recession and competing state funding priorities, public post-secondary institutions have turned to academic attrition as a solution to continuous budgetary shortfalls. As a means of addressing the lived experience of faculty members and department chairs, the following qualitative case study explores perceptions of implementing departmental and/or programmatic eliminations.

Utilizing uncertainty reduction theory as a conceptual framework, interviewed faculty in saved units experienced considerable strategic uncertainty, failing to understand why they had been selected for elimination. Guided by a college-wide strategic …

Elemental Contributions From Minor And Major Constituents Of Bone On The Separation Of Radiostrontium, Ashlee Rae Dailey

UNLV Theses, Dissertations, Professional Papers, and Capstones

While many methods exist to separate and analyze radionuclides from a variety of environmental matrices, the performance of all of these methods is often limited by other interfering constituents that are consistently found in most of these samples. The presence of such constituents can significantly reduce the recovery of the radioisotopes of interests and lead to incomplete separations.

Strontium has the same oxidation state and a similar atomic radius as calcium and is therefore readily able to substitute for calcium in lattice sites. This similarity in behavior leads to the preferential accumulation of strontium in newly formed bone. The study …