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2012

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Full Issue: Vol. 66, No. 4 Dec 2012

Full Issue: Vol. 66, No. 4

Sci-Tech News

No abstract provided.

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Long-Term Integrated Studies Show Complex And Surprising Effects Of Climate Change In The Northern Hardwood Forest, Peter M. Groffman, Lindsay E. Rustad, Pamela H. Templer, John L. Campbell, Lynn M. Christenson, Nina K. Lany, Anne M. Socci, Matthew A. Vadeboncoeur, Paul G. Schaberg, Geoffrey W. Wilson, Charles T. Driscoll, Timothy J. Fahey, Melany C. Fisk, Christine L. Goodale, Mark B. Green, Steven P. Hamburg, Chris E. Johnson, Mryon J. Mitchell, Jennifer L. Morse, Linda H. Pardo, Nicholas L. Rodenhouse Dec 2012

Long-Term Integrated Studies Show Complex And Surprising Effects Of Climate Change In The Northern Hardwood Forest, Peter M. Groffman, Lindsay E. Rustad, Pamela H. Templer, John L. Campbell, Lynn M. Christenson, Nina K. Lany, Anne M. Socci, Matthew A. Vadeboncoeur, Paul G. Schaberg, Geoffrey W. Wilson, Charles T. Driscoll, Timothy J. Fahey, Melany C. Fisk, Christine L. Goodale, Mark B. Green, Steven P. Hamburg, Chris E. Johnson, Mryon J. Mitchell, Jennifer L. Morse, Linda H. Pardo, Nicholas L. Rodenhouse

Environmental Science and Management Faculty Publications and Presentations

Evaluations of the local effects of global change are often confounded by the interactions of natural and anthropogenic factors that overshadow the effects of climate changes on ecosystems. Long-term watershed and natural elevation gradient studies at the Hubbard Brook Experimental Forest and in the surrounding region show surprising results demonstrating the effects of climate change on hydrologic variables (e.g., evapotranspiration, streamflow, soil moisture); the importance of changes in phenology on water, carbon, and nitrogen fluxes during critical seasonal transition periods; winter climate change effects on plant and animal community composition and ecosystem services; and the effects of anthropogenic disturbances and …

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Zumba® Fitness As A Cultural Mediator, Cole E. Durain Dec 2012

Zumba® Fitness As A Cultural Mediator, Cole E. Durain

Theses and Dissertations - UTB/UTPA

This ethnography describes local experience as it pertains to aspects of music, dance, and fitness which are compiled into Zumba® Fitness classes of the Rio Grande Valley. While Zumba is not unique to this region, it is locally interpreted based on geo-cultural factors of the Texas-Mexico border region. A large part of Zumba’s success in the Valley can be attributed to the way music is used to identify with regional popular culture and becomes a catalyst for changing the way locals think about health. Research gathered through participant-observation shows that Zumba has become a cultural expression where participants perform both …

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Permaculture And Public Health: Mitigation Of The Lifestyle Risk Factors For Type 2 Diabetes Through The Establishment Of Permaculture Edible Forest Gardens, Brett Christopher Lehner Dec 2012

Permaculture And Public Health: Mitigation Of The Lifestyle Risk Factors For Type 2 Diabetes Through The Establishment Of Permaculture Edible Forest Gardens, Brett Christopher Lehner

Honors Scholar Theses

Over the past thirty years, the incidence of type 2 diabetes and obesity has greatly increased in the United States. This paper compares the living environment of hunter-gathers to that of modern humans, in diet and activity levels, and discusses the recent increase of type 2 diabetes as a 'disease of civilization'. To address these changes in dietary composition and activity levels, an alternative agricultural model, permaculture edible forest gardening, is proposed. Permaculture edible forest gardening is an agricultural model which mimics natural ecosystem structure while consisting of entirely edible, perennial plant species. Permaculture edible forest gardens can potentially play …

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Using The Greet Model To Analyze Algae As A Feedstock For Biodiesel Production, Christopher Tatum Dec 2012

Using The Greet Model To Analyze Algae As A Feedstock For Biodiesel Production, Christopher Tatum

Masters Theses and Doctoral Dissertations

There is a growing interest in renewable, carbon-neutral biofuels such as ethanol and biodiesel. A life-cycle analysis is conducted in this study to determine the viability of using algae as a feedstock for biodiesel. The method involves assessing energy use, fossil fuel use, greenhouse gas emissions, and criteria pollutant emissions using a simulation developed by Argonne National Laboratory. The energy and emissions of algae-derived biodiesel are compared to those of soybean biodiesel, corn ethanol, conventional gasoline, and low-sulfur diesel. Results show that there are sizeable greenhouse gas emission benefits attributed to the production of both types of biodiesel as compared …

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In Vitro Assessment Of The Survivability Of Lactobacillus Casei Dn-114 001 And Lactobacillus Casei Shirota, Within Commercialised Food Matrices, In The Upper Gastrointestinal Tract, Rosie Wills Dec 2012

In Vitro Assessment Of The Survivability Of Lactobacillus Casei Dn-114 001 And Lactobacillus Casei Shirota, Within Commercialised Food Matrices, In The Upper Gastrointestinal Tract, Rosie Wills

The Plymouth Student Scientist

The aim of this study was to determine the survivability of probiotics; Lactobacillus casei Shirota and Lactobacillus casei DN-114 001, within their respective commercialised food matrices YakultÃ’ and ActimelÃ’, during in vitro simulated gastrointestinal transit. Original and Light/Fat Free varieties of each brand were assessed to determine whether nutritional composition affected bacterial survival rate. Strains were exposed to 3 hours of simulated gastric transit at pH 2, using Hydrochloric Acid (32%) and Pepsin (3mg ml-1), followed by 2 hours of simulated duodenal transit, at pH 6.5, using Bile Salts (0.3% w/v) and Sodium Hydroxide (4M). Samples were serially diluted with …

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A Preliminary Study Into The Use Of Canopy Invertebrates And Sampling Techniques In Relation To Forest Indicators In A Fragmented Scottish Woodland - Application And Management, Natalie Walsh Dec 2012

A Preliminary Study Into The Use Of Canopy Invertebrates And Sampling Techniques In Relation To Forest Indicators In A Fragmented Scottish Woodland - Application And Management, Natalie Walsh

The Plymouth Student Scientist

Caledonian forests within the Scottish Highlands have experienced severe fragmentation and currently remain as small isolated habitats. Canopy invertebrates within these forests play an important role in ecosystem functioning and may be potentially used as forest indicators for the use in forest management. Four different low-cost invertebrate trapping methods were deployed into birch, oak and Scots pine trees, comparing family diversity and composition between tree and trap types. Data on canopy spread, tree height and d.b.h were also tested to see if they influenced family composition of invertebrates. Collected data found little difference in family diversity and composition between tree …

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The Positive Effects Of Aquarium Visits On Children's Behaviour: A Behavioural Observation, Hazel Cocker Dec 2012

The Positive Effects Of Aquarium Visits On Children's Behaviour: A Behavioural Observation, Hazel Cocker

The Plymouth Student Scientist

To date research has found a positive effect of blue spaces on adults’ wellbeing. However, it remains to be seen whether these findings are also true for children. The present study aims to address this gap in the literature. The researchers observed children’s behaviour at the National Marine Aquarium across two weeks, including one where the Big Draw event was taking place. In line with restorative theories of natural environments (Kaplan, 1995, Ulrich, 1983), the current research found the exhibit had a calming effect on behaviour and increased levels of happiness across both weeks. During the Big Draw week children …

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Analyses Of Captive Behaviour And Enclosure Use In Rothschild Giraffes (Giraffa Camelopardalis Rothschildi) Housed At Paignton Zoo Environmental Park ®, Sarah Garry Dec 2012

Analyses Of Captive Behaviour And Enclosure Use In Rothschild Giraffes (Giraffa Camelopardalis Rothschildi) Housed At Paignton Zoo Environmental Park ®, Sarah Garry

The Plymouth Student Scientist

It has been suggested that wild herbivorous animals, like the Rothschild Giraffe (Giraffa camelopardalis rothschildi), are difficult to house in captivity due to their natural wide home range and specialised diet. The aim of this study was to understand what influence the design of the giraffe enclosure at Paignton Zoo has on the activity budget of the Rothschild Giraffes (Giraffa camelopardalis rothschildi) housed in it, in relation to enclosure use and the performance of a natural behavioural repertoire. This was achieved by observing the giraffe’s behaviour and location when in the enclosure, both indoors and outdoors. The Spread of Participation …

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Preschool Curriculum: Choices That Promote Learning, Renee Curet Criddle Dec 2012

Preschool Curriculum: Choices That Promote Learning, Renee Curet Criddle

Dissertations

Ongoing research has shown that preschool is beneficial not only to early childhood success, but also in providing long-term benefits (Wong, Cook, Barnett, & Jung, 2008). With standards for early childhood being generated at the national level with the announcement of the common core standards nationwide and at the state level through state-mandated early learning guidelines and benchmarks, preschools are turning to specified curriculum content and mandated outcomes for early education programs. Effects of preschool programs vary (Barnett et al., 2008) due to differences in program curriculum and method of delivery. As the knowledge and understanding of how young children …

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Werner Jaegerhuber's “Messe Folklorique Haitïenne”: A Conductor's Guide, Lauren Michelle Brandon Lindsey Dec 2012

Werner Jaegerhuber's “Messe Folklorique Haitïenne”: A Conductor's Guide, Lauren Michelle Brandon Lindsey

Dissertations

Werner Jaegerhuber (1900-1953), a composer and leading ethnographer from Haiti, lived a life and career committed to bringing the folk music of Haiti to international recognition. His most significant work, Messe Folklorique Haïtienne, the background leading to its composition, performance of the work and a conductor’s analysis is the focus of this study. The folk music of Haiti consists primarily of Vodou melodies which are performed in Vodou ceremonies. Haiti’s long history of colonization, slavery, chronic economic struggle, African roots, and Catholic influence all play unique, but significant roles in the life of Werner Jaegerhuber and his passionate study. …

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Seeing The Chemistry Around Me – Helping Students Identify The Relevance Of Chemistry To Everyday Life, Tracy Lynn Moore Dec 2012

Seeing The Chemistry Around Me – Helping Students Identify The Relevance Of Chemistry To Everyday Life, Tracy Lynn Moore

Dissertations

The study attempted to determine whether the use of a series of reading and response assignments decreased students’ perceptions of chemistry difficulty and enhanced students’ perceptions of the relevance of chemistry in their everyday lives. Informed consent volunteer students enrolled in General Chemistry II at a community college in the southeastern United States during the Spring 2012 semester participated in this study. Students were assigned to read a series of short articles that connect chemistry to a specific aspect of everyday life and then answer a series of questions for each article. Open-response research instruments (initial questionnaire and final questionnaire) …

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Religious Treatment Exemption Statutes: Betrayest Thou Me With A Statute., Shirley Darby Howell Dec 2012

Religious Treatment Exemption Statutes: Betrayest Thou Me With A Statute., Shirley Darby Howell

The Scholar: St. Mary's Law Review on Race and Social Justice

Abstract Forthcoming.

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Racial Identity Attitudes, Perceived Barriers, Career Self-Efficacy, And Career Outcome Expectations Among African American Male Adolescents., Norman L. Townsel 1960- Dec 2012

Racial Identity Attitudes, Perceived Barriers, Career Self-Efficacy, And Career Outcome Expectations Among African American Male Adolescents., Norman L. Townsel 1960-

Electronic Theses and Dissertations

Social Cognitive Career Theory (SCCT) holds that self-efficacy and outcome expectations are primary predictors of career choice goals and actions, with contextual influences moderating those choices and actions. Racial identity research indicates that African American adolescents perceive more barriers than their White counterparts. The current study hypothesized that chronological age, racial identity attitudes, and the perception of barriers would be significant influences on self-efficacy and outcome expectations for African American adolescents. The study explored the research question using two separate stepwise regression analyses. The first analysis explored racial identity attitudes, age, and perceived barriers in relation to self efficacy. The …

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Professional Basketball Consumer Behavior: An Analysis Of The Nba Servicscape, Atmospheric Music And Attendee Attitudes, Emotional Responses, And Behaviors, Crystal Southall Dec 2012

Professional Basketball Consumer Behavior: An Analysis Of The Nba Servicscape, Atmospheric Music And Attendee Attitudes, Emotional Responses, And Behaviors, Crystal Southall

Dissertations

Sport is a unique product within the domain of entertainment and leisure services. Although the sport industry continues to grow, sport spectatorship has changed dramatically, with fans consuming sport through a variety of media outlets such as television and the Internet. Sport consumers can now watch live, delayed, or recorded sporting events when and where they choose, therefore sport organizations must focus their attention on sustainability through the creation of a competitive advantage in the staging of live sporting events. The National Basketball Association product is consumed in an increasingly stimulating consumptive landscape and therefore was the focus of the …

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Regulation Of Alternative Carbon Metabolism In Candida Albicans, Arely Y. Gonzalez Dec 2012

Regulation Of Alternative Carbon Metabolism In Candida Albicans, Arely Y. Gonzalez

Dissertations and Theses (Open Access)

Candida albicans is the most important fungal pathogen of humans. Transcript profiling studies show that upon phagocytosis by macrophages, C. albicans undergoes a massive metabolic reorganization activating genes involved in alternative carbon metabolism, including the glyoxylate cycle, β-oxidation and gluconeogenesis. Mutations in key enzymes such as ICL1 (glyoxylate cycle) and FOX2 (fatty acid β-oxidation) revealed that alternative carbon metabolic pathways are required for full virulence in C. albicans. These studies indicate C. albicans uses non-preferred carbon sources allowing its adaptation to microenvironments were nutrients are scarce. It has become apparent that the regulatory networks required for regulation of alternative …

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The Impact Of President Felipe Calderón’S War On Drugs On The Armed Forces: The Prospects For Mexico’S “Militarization” And Bilateral Relations, George W. Grayson Dr. Dec 2012

The Impact Of President Felipe Calderón’S War On Drugs On The Armed Forces: The Prospects For Mexico’S “Militarization” And Bilateral Relations, George W. Grayson Dr.

Books, Monographs & Collaborative Studies

View the Executive Summary

In the absence of honest, professional civilian law-enforcement agencies, President Felipe Calderón assigned the military the lead role in his nation’s version of the “War on Drugs” that he launched in 2006. While the armed forces have spearheaded the capture and/or death of several dozen cartel capos, the conflict has taken its toll on the organizations in terms of deaths, corruption, desertions, and charges by nongovernmental organizations (NGOs) of hundreds of human rights violations. The nation’s Supreme Court has taken the first step in requiring that officers and enlistees accused of crimes against civilians stand trial …

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Nutritional And Health Status Of Medical Students At A University In Northwestern Saudi Arabia, Abdulkader R. Allam, Inass M. Taha, Omar M. Al-Nozha, Intessar E. Sultan Dec 2012

Nutritional And Health Status Of Medical Students At A University In Northwestern Saudi Arabia, Abdulkader R. Allam, Inass M. Taha, Omar M. Al-Nozha, Intessar E. Sultan

Saudi Medical Journal

OBJECTIVES: To assess the nutrition and health status, nutrients intake, and physical activity among Saudi medical students. METHODS: A cross-sectional survey using a questionnaire, anthropometric measurements, and laboratory assessments was conducted from January to May 2011 on 194 randomly selected Saudi medical students at Taibah University, Madinah, Kingdom of Saudi Arabia. The adequacy of nutrient intake was compared with the recommended daily intake (RDI) per the National Research Council. RESULTS: Caloric intake was derived from carbohydrates (72.1%), fats (19.4%) and proteins (8.4%). Proteins and fats were obtained from a greater number of animal sources than of plant sources (5.3% versus …

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Aqui Es: The Rhetoric Of Identification In An Act Of Local Branding, Bonnie M. Garcia Dec 2012

Aqui Es: The Rhetoric Of Identification In An Act Of Local Branding, Bonnie M. Garcia

Theses and Dissertations - UTB/UTPA

Brands are a large part of our cultural discourse. In the Rio Grande Valley a group of network-marketing sponsored entrepreneurs has tapped into branding as a rhetorical resource. I use Burke’s concept of consubstantiation to analyze the rhetorical motives represented both in the use of branding in general and in the “Aqui Es” sign utilized by local nutrition clubs. Burke’s concept of consubstantiation allows me to contextualize the production of the sign and open avenues to explore the relationships behind the sign’s use. I then utilize Lacanian psychoanalysis to explain the psychological motives behind the sign’s use and production. I …

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Evidence Of Olfactory And Visual Learning In The Asian Citrus Psyllid, Diaphorina Citri Kuwayama (Hemiptera: Psyllidae), Dara G. Stockton Dec 2012

Evidence Of Olfactory And Visual Learning In The Asian Citrus Psyllid, Diaphorina Citri Kuwayama (Hemiptera: Psyllidae), Dara G. Stockton

Theses and Dissertations - UTB/UTPA

Investigation of the mechanisms underlying learning and memory can be achieved through research on neurobiologically simplified invertebrate species. As such, insects have been used for decades as ideal models of olfactory learning. The current study aimed to investigate the mechanisms of chemosensory attraction in an invasive insect, Diaphorina citri, the Asian citrus psyllid (ACP), through manipulation of olfactory stimuli. After classical conditioning to a non-innate cue (vanilla extract), psyllids displayed enhanced feeding behavior. There was, however, an inverse relationship between olfactory “noise” and feeding behavior. Preliminary data suggests ACP may also be visual learners, as evidenced by trials attempting to …

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A Pillar Of Democracy: Reflections On The Role And Work Of The Constitutional Court Of South Africa, Kate O’Regan Dec 2012

A Pillar Of Democracy: Reflections On The Role And Work Of The Constitutional Court Of South Africa, Kate O’Regan

Fordham Law Review

No abstract provided.

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Using On-Line Bulletin Boards To Gather Preliminary Information, Kathleen Kelley, Ramu Govindasamy, Jeffrey Hyde Dec 2012

Using On-Line Bulletin Boards To Gather Preliminary Information, Kathleen Kelley, Ramu Govindasamy, Jeffrey Hyde

Journal of Extension

Internet bulletin-board sessions can be used to collect preliminary, qualitative data. This method allows Extension personnel to gather responses from stakeholders about potential programming, consumer needs and desires, and preference for program delivery method without assembling participants in one location. Several other advantages exist, including time available for moderators and researchers to review participants' submissions and ability to alter questions, if needed. Disadvantages, compared to traditional face-to-face focus group session, exist; however, certain shortcomings can be overcome. Preliminary data collected can help Extension personnel identify issues to explore further including programming and opportunities for stakeholders.

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Child Abuse In Foster Care: Risk Factors, Magali Sanchez-Gomez Dec 2012

Child Abuse In Foster Care: Risk Factors, Magali Sanchez-Gomez

Social Sciences

No abstract provided.

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Effect Of Sustainability Package Advertising On Consumer Purchases, Ronald Ringler Dec 2012

Effect Of Sustainability Package Advertising On Consumer Purchases, Ronald Ringler

Graphic Communication

This research project focused on factors influencing consumers’ purchasing behavior. Specifically, the project focused on sustainability of packaging and attempted to find if sustainability of a package (represented by post-consumer content) affected a consumer’s decision to buy that product. The specific question asked was: “Are consumers willing to purchase a product based on the environmental friendliness of its package even if it goes against the consumer’s brand preference, or if it has a higher price point than competing products?” Research data was gathered through a multi-page survey comprised of seven questions of varying complexity. Participants were primarily aged 18-25 and …

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Genetic Admixture And Tooth Size In An Enslaved Population From Newton Plantation, Barbados, Susannah Munson Dec 2012

Genetic Admixture And Tooth Size In An Enslaved Population From Newton Plantation, Barbados, Susannah Munson

Theses

This study examined the amount of European genetic admixture in the enslaved African population from Newton Plantation, Barbados. Newton Plantation was a British sugar plantation from the 17th to 19th centuries. Approximately 150 individuals were recovered from an unmarked slave cemetery during archaeological investigations in the 1970s and 1990s. Using maximum mesiodistal and buccolingual tooth measurements of the available teeth from the individuals in the cemetery, Newton was compared to nineteen comparative samples of African, European, African American and European American populations that date from the time of British colonization to the 20th century. Previous European admixture estimations in the …

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The Capacity Of A Southern University To Promote And Support Health Literacy Among College Students: A Case Study Approach, Alison Burton Epperson Dec 2012

The Capacity Of A Southern University To Promote And Support Health Literacy Among College Students: A Case Study Approach, Alison Burton Epperson

Dissertations

The primary purpose of this case study was to determine if the university under study had adequate health-related programs, services, and supports in place to develop health-literate young adults. A secondary purpose was to identify strengths and gaps in these university health-related programs, services, and supports, which, if addressed, could increase the likelihood that college graduates would be health-literate. This research study served to answer three broad research questions: 1) What are the health-related needs and concerns among selected university undergraduates? 2) What is the level of awareness and utilization of health-related programs, services, and supports by university undergraduate students? …

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Genetic Analysis Of The Hippo Pathway In Mouse Liver, Li Lu Dec 2012

Genetic Analysis Of The Hippo Pathway In Mouse Liver, Li Lu

Dissertations and Theses (Open Access)

Cancer therapy and tumor treatment remain unsolved puzzles. Genetic screening for tumor suppressor genes in Drosophila revealed the Hippo-signaling pathway as a kinase cascade consisting of five core components. Disrupting the pathway by deleting the main component genes breaks the balance of cell proliferation and apoptosis and results in epithelial tissue tumorigenesis. The pathway is therefore believed to be a tumor suppressor pathway. However, a corresponding role in mammals is yet to be determined. Our lab began to investigate the tumor suppression function of the potent mammalian Hippo pathway by putting floxed alleles into the mouse genome flanking the functional-domain-expressing …

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Induction Of Stronger And Long Lasting Vaccine Immunity To Tuberculosis, Pearl Bakhru Dec 2012

Induction Of Stronger And Long Lasting Vaccine Immunity To Tuberculosis, Pearl Bakhru

Dissertations and Theses (Open Access)

Tuberculosis is a major cause of death due to an infection in mankind. BCG vaccine protects against childhood tuberculosis although, it fails to protect against adult tuberculosis. BCG vaccine localizes to immature phagosomes of macrophages, and avoids lysosomal fusion, which decreases peptide antigen production. Peptides are essential for macrophage-mediated priming of CD4 and CD8 T cells respectively through MHC-II and MHC-I pathways. Furthermore, BCG reduces the expression of MHC-II in macrophages of mice after infection, through Toll-like receptor-1/2 (TLR-1/2) mediated signaling. In my first aim, I hypothesized that BCG-induced reduction of MHC-II levels in macrophages can decrease CD4 T cell …

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Characteristics Of Public Alternative High Schools Specifically For Students Placed At-Risk: A National Study Using The 2003-04 And 2007-08 Schools And Staffing Survey, Masashi Izumi Dec 2012

Characteristics Of Public Alternative High Schools Specifically For Students Placed At-Risk: A National Study Using The 2003-04 And 2007-08 Schools And Staffing Survey, Masashi Izumi

Dissertations

In this study I investigated determinants of the average daily attendance (ADA) and graduation rate of public alternative high schools specifically for students placed at-risk by analyzing the nationally representative data from Schools and Staffing Surveys of 2003-04 and 2007-08. I built three models via successive block entry, predicting the ADA and graduation rate by (a) student demographics, (b) staffing characteristics, and (c) school processes. Through multiple regression analyses on ADA, I found (a) a positive relationship between career technical education and ADA; and (b) a negative relationship between teacher-student ratio and ADA. Through the set of multiple regression analyses …

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Molecular Genetics Of Nodule Number Regulation: Cloning, Characterization And Functional Studies Of The Root Determined Nodulator1 (Rdn1) Gene In Medicago Truncatula, Tessema Kassaw Dec 2012

Molecular Genetics Of Nodule Number Regulation: Cloning, Characterization And Functional Studies Of The Root Determined Nodulator1 (Rdn1) Gene In Medicago Truncatula, Tessema Kassaw

All Dissertations

Nitrogen is critical to life. However, the majority of nitrogen on earth (in the atmosphere) is inert and unavailable to nearly all organisms. Metabolically diverse prokaryotes are the only organisms capable of fixing atmospheric nitrogen; rhizobia set up a symbiosis with legume plants allowing the plants to benefit from this ability. Since nodulation and the subsequent nitrogen fixation processes are energy intensive, the host plant must balance hosting of the rhizobia by limiting the number of nodules it forms through a mechanism called Autoregulation of Nodulation (AON). My study of mutants in the model legume Medicago truncatula defective in AON …

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