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2012

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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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A Critical Analysis Of The Kyoto Protocol Using Monte Carlo Simulation And Magicc, Penny Lambert Dec 2012

A Critical Analysis Of The Kyoto Protocol Using Monte Carlo Simulation And Magicc, Penny Lambert

The Plymouth Student Scientist

The United Nations Framework Convention on Climate Change adopted the Kyoto Protocol in December 1997. Emissions data from national registries were used to quantify the total anthropogenic emissions of signatory parties between 1990 and 2009, found to have been reduced by approximately 18 percent of base year levels. Using IPCC Special Report Emissions Scenarios (SRES) as a practicable baseline for non-mitigation, three distinct intervention scenarios were constructed from target and observed emissions reductions under the Protocol to investigate their climatic implications against unabated anthropogenic carbon by the end of the 21st century. MAGICC Version 5.3 was used to model forecast …

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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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Fluorescent Proteins And Chromoproteins In Phylum: Cnidaria, Mario Lewis Dec 2012

Fluorescent Proteins And Chromoproteins In Phylum: Cnidaria, Mario Lewis

The Plymouth Student Scientist

Green fluorescent protein was first discovered in Aequorea victoria. Its significance in a continually expanding range of scientific applications led to the discovery of an abundance of homologous fluorescent proteins and non-fluorescent chromoproteins in a variety of species in the phylum Cnidaria. The document reviews the various proposed hypotheses on the biological functions and biochemistry of fluorescent proteins and chromoproteins, wherein a full resolution remains elusive and is the subject of on-going debate. Mutagenesis has provided novel variants and insights into the relationship between the spectral characteristics and chromophore structures of fluorescent proteins that encompass the visible spectrum. Fluorescent proteins …

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Effects Of Algal Toxicity On The Clearance Rate Of The Blue Mussel (Mytilus Edulis), Samantha Bowgen Dec 2012

Effects Of Algal Toxicity On The Clearance Rate Of The Blue Mussel (Mytilus Edulis), Samantha Bowgen

The Plymouth Student Scientist

The purpose of this study was to investigate the effect of toxic strains of Karlodinium veneficum on the clearance rate of Mytilus edulis. Suspensions of the toxic strain and the non-toxic strain of K. veneficum, mixed with an alternative non-toxic species, Prorocentrum micans, were made and performed as parallel experiments in order to compare their effects on clearance rate. Clearance rate was measured by taking samples from suspensions every five minutes up to 30 minutes, and counting the algal cells found within each sample using a Sedgewick rafter slide. No significant difference was found between the two experiments (F (9.322, …

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Effects Of A Gardening Task On Chocolate Craving, Sarah-Jane Baugh Dec 2012

Effects Of A Gardening Task On Chocolate Craving, Sarah-Jane Baugh

The Plymouth Student Scientist

Two concepts, craving and nature, were brought together to investigate the effects of a gardening task on chocolate craving. Participants (n = 105) completed a chocolate craving induction before taking part in one of three, five minute tasks (gardening, plasticine, counting). Measures of craving, mood, arousal, attention and heart rate were recorded. The gardening task was found to have beneficial effects with participants experiencing significant changes in energetic arousal (p= .01) and feeling good (p< .01); however, no significant effects were found in the other measures.

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Investigation Of The Vasorelaxant Properties Of Nitroxyl During Altered Glycaemic Conditions, Kimberley Sams Dec 2012

Investigation Of The Vasorelaxant Properties Of Nitroxyl During Altered Glycaemic Conditions, Kimberley Sams

The Plymouth Student Scientist

Nitroxyl (HNO) is currently a vasorelaxant of high interest, but as yet its mechanisms of action have not been fully elucidated. It is thought that HNO acts on KV channels to mediate vasorelaxation, and this has been shown in previous studies (Irvine et al, 2003; Favarolo & Kemp-Harper, 2009; Yuill et al, 2011). It has also been shown that high levels of glucose inhibit KV channels (Rainbow et al, 2006) so would inhibit HNO mediated relaxation. This study could provide further evidence of KV involvement of HNO mediated vasodilation. This study uses a temperature controlled organ bath with aortic ring …

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Location, Demographic, Lifestyle And Behavioural Influences On Household Participation In Bournemouth Borough Council's Kerbside Recycling Scheme, Stephanie Rooke Dec 2012

Location, Demographic, Lifestyle And Behavioural Influences On Household Participation In Bournemouth Borough Council's Kerbside Recycling Scheme, Stephanie Rooke

The Plymouth Student Scientist

Bournemouth Borough Council (BBC) is performing well in recycling and currently has a recycling rate of 63.9%, but there is still room for BBC to improve the efficiency of the existing ‘Big Bin’ dry kerbside recycling collection scheme and increase the recycling rate further. The aim of the study was to identify the socio-economic groups which participate the least, or contaminate the most, in BBC’s kerbside recycling scheme. A participation survey was carried out over three consecutive collection cycles for three recycling rounds ‘RW1, RW2 and RW5’ to measure how many times each individual household set out their recycling bin …

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The Conservation Biology And Ecology Of The African Leopard Panthera Pardus Pardus, Ross Tyzack Pitman Dec 2012

The Conservation Biology And Ecology Of The African Leopard Panthera Pardus Pardus, Ross Tyzack Pitman

The Plymouth Student Scientist

The African leopard Panthera pardus pardus is an apex predator, and a reliable indicator of a healthy ecosystem. Currently assessed as ‗near threatened‘ by the IUCN Red List of Threatened Species, leopards are exposed to a range of threats that include: habitat loss and/or degradation, depletion of natural prey, conflict with people, consumptive- and non-consumptive practices, and the illegal trade of leopard products. Leopards have disappeared from 37% of their historical range, and are continuing to decline. Leopards have been extirpated across many areas of Africa, especially where people are densely populated, which has left patchily distributed leopard populations throughout …

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Facies Analysis And Diagenesis Of Late Pleistocene Shoreline Sands, Saunton, North Devon, Sophie Young Dec 2012

Facies Analysis And Diagenesis Of Late Pleistocene Shoreline Sands, Saunton, North Devon, Sophie Young

The Plymouth Student Scientist

The succession at Saunton is composed of all the major elements of Pleistocene coastal stratigraphy from across north Devon. The aim of this study is to analyse and interpret the depositional environment of the laterally variable late Pleistocene sedimentary succession at Saunton, using facies analysis. This knowledge is used to infer local relative sea level changes from patterns of transgressions, normal, and forced regressions and an attempt is made, using sequence stratigraphy, to constrain the relative ages of the deposits based on marine oxygen isotope stages. Petrographic observations of the different facies and grain types are used to evidence the …

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Biologging Science: Advances In Our Knowledge Of Seabirds And Their Behaviours, David Evans Dec 2012

Biologging Science: Advances In Our Knowledge Of Seabirds And Their Behaviours, David Evans

The Plymouth Student Scientist

The use of miniature tags attached to free-living animals to record data is termed ‘biologging’. This procedure has been used to study seabirds since the 1970’s and our knowledge of their behaviour, physiology and migration has advanced through the decades, along with the potential for conservation of species. Technological advances in recent years have improved data resolution and storage, enabling a better understanding of seabirds and their environment

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The Ecology Of Tardigrades, Emma Northcote-Smith Dec 2012

The Ecology Of Tardigrades, Emma Northcote-Smith

The Plymouth Student Scientist

No abstract provided for this article.

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The Effects Of Logging And Fragmentation On Bird Diversity, Bethany Mccarthy Dec 2012

The Effects Of Logging And Fragmentation On Bird Diversity, Bethany Mccarthy

The Plymouth Student Scientist

Deforestation and forest degradation is occurring globally at an alarming rate. The annual net loss of forest cover has been reduced in the past decade through sustainable forest management and conservation measures. Despite this, the remaining forest is becoming increasingly degraded with the total area of primary forest declining. Avian diversity has been shown to decline in degraded and fragmented forests due to logging activities. In this review the impacts of logging on avian communities are assessed by comparing diversity between primary forest and degraded secondary forest, industrial plantations and forest fragment sizes. The major organisations and current initiatives that …

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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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Impact Of Large Mammal Herbivory On The Federally Threatened Plant, Scutellaria Montana Chapm (Large-Flowered Skullcap) At A Millitary Training Site, Catoosa County, Georgia, Andrea Renee Benson Dec 2012

Impact Of Large Mammal Herbivory On The Federally Threatened Plant, Scutellaria Montana Chapm (Large-Flowered Skullcap) At A Millitary Training Site, Catoosa County, Georgia, Andrea Renee Benson

Masters Theses and Doctoral Dissertations

Scutellaria montana Chapm. (Large-flowered skullcap) is a federally listed species endemic to a few counties in northwestern Georgia and southeastern Tennessee. A large population of this species is housed within the Tennessee Army National Guard Volunteer Training Site (VTS) in Catoosa County, GA. To investigate the impacts of large mammal herbivores on this species at the VTS, an exclosure experiment was conducted in the field during 2011 and 2012. Results indicate that deer are not negatively impacting S. montana at the individual or population levels, but and after the second season, it was apparent that the white PVC pipe used …

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Conservation Genetics Of A Spotted Salamander (Ambystoma Maculatum (Shaw 1802)) Local Population In Southeast Tennessee, Daniel Scott Armstrong Dec 2012

Conservation Genetics Of A Spotted Salamander (Ambystoma Maculatum (Shaw 1802)) Local Population In Southeast Tennessee, Daniel Scott Armstrong

Masters Theses and Doctoral Dissertations

Currently there is a worldwide amphibian decline with numerous causes. Because of this, it is important to understand how genetic variation in local amphibian populations is affected by disturbance. The goal of this study was to assess the genetic impacts of past chemical and ammunition storage and present industrialization on a local population of Ambystoma maculatum (Shaw 1802) using thirteen microsatellite markers. Most loci exhibited no loss of heterozygosity but the low effective population size may indicate vulnerability to future declines. No population substructure or sex-biased dispersal was detected. Possible explanations for the reduction in genetic diversity at four loci …

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From Future Homemaker Of America To The Lesbian Continuum: The Queering Of Mary Ann Singletone In Armistead Maupin's Tales, Sara Katherine White Dec 2012

From Future Homemaker Of America To The Lesbian Continuum: The Queering Of Mary Ann Singletone In Armistead Maupin's Tales, Sara Katherine White

Masters Theses and Doctoral Dissertations

Armistead Maupin's Tales of the City is a turning point in homosexual literature in twentieth century America. This paper mainly examines the character of Mary Ann Singleton and the "queering" of her character. The writings of Michael Foucault, Judith Butlter, Adrienne Rich, Eve K. Sedgewich, and Simone de Beauvoir are vital in understanding how a straight woman journeys onto the lesbian continuum as a revolt against gender roles (defined by Butler and Beauvoir) and as a result of her friendship with Michael Tolliver. Michael's character provides a discourse (as defined by Foucault) on homosexuality and through this discourse, he provides …

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Positive And Neutral Mood Inductions: Ties To Creativity, Kaylan Stephanie Wilson Dec 2012

Positive And Neutral Mood Inductions: Ties To Creativity, Kaylan Stephanie Wilson

Masters Theses and Doctoral Dissertations

Positive mood may broaden cognition, allowing for an increase in creativity. This study tested whether creativity could be increased when positive mood and creativity were induced through verbal instructions that direct ed participants to revisit memories that depicted positive mood and/or creative moments. This experiment had a 2(mood induction positive/neutral) X 2(creativity induction yes/no) design, and 112 participants in four condi tions: 22 in the first, 33 in the second, 25 in the third, and 32 in the fourth. Mood and creativity inductions were autobiographical, as this method is the most effective technique for inducing mood. Scales used were the …

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Is There A Relationship Between Ninth Grade Transitional Programs And At-Risk Student Achievement?, Susan Marie Stoddard Dec 2012

Is There A Relationship Between Ninth Grade Transitional Programs And At-Risk Student Achievement?, Susan Marie Stoddard

Dissertations

Transition into the ninth grade has long been a critical juncture for students as they make the move to a larger environment with less personal support and a more rigorous academic challenge. In an effort to help make the move from middle-to-high-school transition as smooth as possible, school districts are using Ninth Grade Academies, or innovative transitional strategies designed to address the key factors contributing to students dropping out: poor academic achievement, disengagement, and poor attendance. The purpose of the study was to determine if a statistically significant relationship existed between the type of ninth grade transitional program and at-risk …

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Understanding Corrosion Protection And Failure Through Model Polymers In Thin Films, Joshua Smith Hanna Dec 2012

Understanding Corrosion Protection And Failure Through Model Polymers In Thin Films, Joshua Smith Hanna

Dissertations

When developing a model polymeric system to facilitate in the detection of molecular and microscopic events that preface macroscopic corrosive failure; a better understanding of how polymers can indicate corrosion was accomplished. Initially, the thought that molecular chain scission as a necessity for corrosion to occur had to be tested. Through the utilization of high molecular weight thermoplastic (HMWTP) model polymers, it was found that corrosion protection did not correlate to the quantity of weak bonds within an epoxy-amine polymer matrix. Therefore more sensitive methods of detecting corrosion had to be developed since changes within the polymer matrix did not …

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Polymer Surface Engineering Via Thiol-Mediated Reactions, Ryan Matthew Hensarling Dec 2012

Polymer Surface Engineering Via Thiol-Mediated Reactions, Ryan Matthew Hensarling

Dissertations

Synthesis of polymer brushes to decorate a surface with desired functionality typically involves surface-initiated polymerization (SIP) of functional, but non-reactive monomers. This approach suffers major drawbacks associated with synthesizing sufficiently thick polymer brushes containing surface-attached polymer chains of high molecular weight at high grafting density (i.e. cost, synthetic effort and functional group intolerance during polymerization). The research herein seeks to circumvent these limitations by the decoration of surfaces with polymer chains bearing specific pendent functional groups amenable to post-polymerization modification (PPM). In particular, this dissertation leverages PPM via a specific class of click reactions – thiol-click – that 1) enables …

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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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A Time Series Analysis Method Using Hidden Variables For Gene Network Reconstruction, Xi Wu Dec 2012

A Time Series Analysis Method Using Hidden Variables For Gene Network Reconstruction, Xi Wu

Dissertations

The DNA microarray technology can be applied to obtain time series data which contains thousands of genes and tens of time points. When confront the great amount of data points a fast and effective method must be constructed to extract useful information. The assumption that the interactions between genes are static in the time series data is made. After made the assumption how to reconstruct those interactions becomes a difficulty problem. Since the underlying interactions between genes are complicated, which involve transcription, translation and protein-protein interaction, to construct a model from physicochemistry is almost impossible/effortless. The popular methods constructed from …

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Fluorescence And Size Characterization Of Dissolved Organic Matter In Riverine And Sea Waters In The Northern Gulf Of Mexico, Zhengzhen Zhou Dec 2012

Fluorescence And Size Characterization Of Dissolved Organic Matter In Riverine And Sea Waters In The Northern Gulf Of Mexico, Zhengzhen Zhou

Dissertations

Riverine export of dissolved organic matter (DOM) is an important component in marine carbon budget but the composition and phase partitioning are poorly quantified. Monthly water samples were collected from the lower Mississippi and Pearl rivers between January 2009 to August 2011 for DOM characterization using the fluorescence excitation emission matrix (FluoEEM) technique, coupled with parallel factor analysis (PARAFAC), and flow field-flow fractionation technique. DOM in the Pearl River showed higher dissolved organic carbon (DOC) concentration, temporal fluctuation, and aromaticity, reflecting instantaneous inputs of DOM from local soil and plant litter. In contrast, DOM in the Mississippi River exhibited lower …

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The Role Of The Cysteine/Glutathione Regulatory Genes Cdo1, Gsh1, And Gsh2 In Yeast-Mold Dimorphism Of The Pathogenic Fungus Histoplasma Capsulatum, Melissa Anne Adams Dec 2012

The Role Of The Cysteine/Glutathione Regulatory Genes Cdo1, Gsh1, And Gsh2 In Yeast-Mold Dimorphism Of The Pathogenic Fungus Histoplasma Capsulatum, Melissa Anne Adams

Dissertations

The dimorphism of Histoplasma capsulatum (Hc) from a mold to yeast is regulated by many environmental factors such as temperature and thiol concentrations. Histoplasma exists in the soil (or in vitro at 25ºC) as a multicellular saprophytic mold. In the lungs of an infected host (or in vitro at 37ºC), a shift to the unicellular parasitic yeast occurs. Sulfhydryl groups (-SH), especially cysteine, are necessary in the culture medium for the mold to yeast transition. Cysteine is the precursor for the synthesis of glutathione. Enzymes involved in the cysteine metabolism pathway are being studied in order to evaluate …

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Tumour Inflammasome-Derived Il-1b Recruits Neutrophils And Improves Local Recurrence-Free Survival In Ebv-Induced Nasopharyngeal Carcinoma, Lih-Chyang Chen, Li-Jie Wang, Nang-Ming Tsang, David M. Ojcius, Chia-Chen Chen, Chun-Nan Ouyang, Chuen Hsueh, Ying Liang, Kai-Ping Chang, Chiu-Chin Chen, Yu-Sun Chang Dec 2012

Tumour Inflammasome-Derived Il-1b Recruits Neutrophils And Improves Local Recurrence-Free Survival In Ebv-Induced Nasopharyngeal Carcinoma, Lih-Chyang Chen, Li-Jie Wang, Nang-Ming Tsang, David M. Ojcius, Chia-Chen Chen, Chun-Nan Ouyang, Chuen Hsueh, Ying Liang, Kai-Ping Chang, Chiu-Chin Chen, Yu-Sun Chang

All Dugoni School of Dentistry Faculty Articles

Inflammasomes sense infection and cellular damage and are critical for triggering inflammation through IL-1β production. In carcinogenesis, inflammasomes may have contradictory roles through facilitating antitumour immunity and inducing oncogenic factors. Their function in cancer remains poorly characterized. Here we show that the NLRP3, AIM2 and RIG-I inflammasomes are overexpressed in Epstein-Barr virus (EBV)-associated nasopharyngeal carcinoma (NPC), and expression levels correlate with patient survival. In tumour cells, AIM2 and RIG-I are required for IL-1β induction by EBV genomic DNA and EBV-encoded small RNAs, respectively, while NLRP3 responds to extracellular ATP and reactive oxygen species. Irradiation and chemotherapy can further activate AIM2 …

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Reversible Inhibition Of Chlamydia Trachomatis Infection In Epithelial Cells Due To Stimulation Of P2x4 Receptors, Matthew A. Pettengill, Camila Marques-Da-Silva, Maria Luisa Avila, Verissa W. Lam, Ikechukwu Ollawa, Ali Abdul-Sater, Robson Coutinho-Silva, Georg Hacker, David M. Ojcius, Suellen D'Arc Dos Santos Oliveira Dec 2012

Reversible Inhibition Of Chlamydia Trachomatis Infection In Epithelial Cells Due To Stimulation Of P2x4 Receptors, Matthew A. Pettengill, Camila Marques-Da-Silva, Maria Luisa Avila, Verissa W. Lam, Ikechukwu Ollawa, Ali Abdul-Sater, Robson Coutinho-Silva, Georg Hacker, David M. Ojcius, Suellen D'Arc Dos Santos Oliveira

All Dugoni School of Dentistry Faculty Articles

Bacterial infections of the mucosal epithelium are a major cause of human disease. The prolonged presence of microbial pathogens stimulates inflammation of the local tissues, which leads to changes in the molecular composition of the extracellular milieu. A well-characterized molecule that is released to the extracellular milieu by stressed or infected cells is extracellular ATP and its ecto-enzymatic degradation products, which function as signaling molecules through ligation of purinergic receptors. There has been little information, however, on the effects of the extracellular metabolites on bacterial growth in inflamed tissues. Millimolar concentrations of ATP have been previously shown to inhibit irreversibly …

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Singing Songs In A Strange Land: The Plight Of Haitian Children In The Space Of International Adoption., Glenys P. Spence Dec 2012

Singing Songs In A Strange Land: The Plight Of Haitian Children In The Space Of International Adoption., Glenys P. Spence

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

The best interests of children are not served by severing the familial bonds contemplated by international adoption law. Nonetheless, because of the high costs of the international adoption process, efforts to adopt their Haitian orphan relatives are ignored. In attempts to guarantee the “best interests of the child” are met, the United Nations Convention on the Rights of the Child (CRC) and the Hague Convention on the Protection of Children Co-Operative Respect of Intercountry Adoptions (Adoption Convention) were created as the two governing bodies of international adoption law. Global South countries, including Haiti, however, have not ratified the Adoption Convention. …

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Modeling The Distribution Of Meadows In Arid And Semi-Arid Patagonia, Argentina: Assessing Current Distribution And Predicting Response To Climate Change, Ramiro Daniel Crego Dec 2012

Modeling The Distribution Of Meadows In Arid And Semi-Arid Patagonia, Argentina: Assessing Current Distribution And Predicting Response To Climate Change, Ramiro Daniel Crego

Theses

Meadows are critical in arid and semi-arid Argentinean Patagonia because of their importance for regional biodiversity. Despite this, little information on the spatial distribution of meadows is available and no analysis of the potential effect of climate change on meadows has been performed, which hampers conservation planning. In this study, I modeled the spatial distribution of meadows and investigated how climate change may affect the current distribution of meadows in arid and semiarid Patagonia by 2050. In addition, I investigated conservation status and areas of desertification vulnerability of those areas predicted to contain meadows. I used high-resolution imagery available in …

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